Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (24 commits)
  [POWERPC] Fix vmemmap warning in init_64.c
  [POWERPC] Fix 64 bits vDSO DWARF info for CR register
  [POWERPC] Add 1TB workaround for PA6T
  [POWERPC] Enable NO_HZ and high res timers for pseries and ppc64 configs
  [POWERPC] Quieten cache information at boot
  [POWERPC] Quieten clockevent printk
  [POWERPC] Enable SLUB in *_defconfig
  [POWERPC] Fix 1TB segment detection
  [POWERPC] Fix iSeries_hpte_insert prototype
  [POWERPC] Fix copyright symbol
  [POWERPC] ibmebus: Move to of_device and of_platform_driver, match eHCA and eHEA drivers
  [POWERPC] ibmebus: Add device creation and bus probing based on of_device
  [POWERPC] ibmebus: Remove bus match/probe/remove functions
  [POWERPC] Move of_device allocation into of_device.[ch]
  [POWERPC] mpc52xx: device tree changes for FEC and MDIO
  [POWERPC] bestcomm: GenBD task support
  [POWERPC] bestcomm: FEC task support
  [POWERPC] bestcomm: ATA task support
  [POWERPC] bestcomm: core bestcomm support for Freescale MPC5200
  [POWERPC] mpc52xx: Update mpc52xx_psc structure with B revision changes
  ...

arch/powerpc/Kconfig

@@ -698,3 +698,7 @@ source "crypto/Kconfig"
 config PPC_CLOCK
 	bool
 	default n
+
+config PPC_LIB_RHEAP
+	bool
+

arch/powerpc/boot/dts/lite5200b.dts

@@ -277,10 +277,26 @@
 		ethernet@3000 {
 			device_type = "network";
 			compatible = "mpc5200b-fec","mpc5200-fec";
-			reg = <3000 800>;
+			reg = <3000 400>;
 			mac-address = [ 02 03 04 05 06 07 ]; // Bad!
 			interrupts = <2 5 0>;
 			interrupt-parent = <&mpc5200_pic>;
+			phy-handle = <&phy0>;
+		};
+
+		mdio@3000 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			device_type = "mdio";
+			compatible = "mpc5200b-fec-phy";
+			reg = <3000 400>;	// fec range, since we need to setup fec interrupts
+			interrupts = <2 5 0>;	// these are for "mii command finished", not link changes & co.
+			interrupt-parent = <&mpc5200_pic>;
+
+			phy0:ethernet-phy@0 {
+				device_type = "ethernet-phy";
+				reg = <0>;
+			};
 		};
 
 		ata@3a00 {

arch/powerpc/configs/bamboo_defconfig

@@ -91,8 +91,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -695,7 +696,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/celleb_defconfig

@@ -92,8 +92,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -1218,7 +1219,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/chrp32_defconfig

@@ -92,8 +92,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -1373,7 +1374,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/ebony_defconfig

@@ -90,8 +90,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -773,7 +774,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/g5_defconfig

@@ -92,8 +92,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -1580,7 +1581,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/holly_defconfig

@@ -88,8 +88,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -909,7 +910,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_SCHED_DEBUG is not set
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/iseries_defconfig

@@ -93,8 +93,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -1056,7 +1057,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/kilauea_defconfig

@@ -91,8 +91,9 @@ CONFIG_SIGNALFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -700,7 +701,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/linkstation_defconfig

@@ -89,8 +89,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -1459,7 +1460,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/lite5200_defconfig

@@ -87,8 +87,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -816,7 +817,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/maple_defconfig

@@ -90,8 +90,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -1095,8 +1096,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-CONFIG_DEBUG_SLAB=y
-# CONFIG_DEBUG_SLAB_LEAK is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/mpc7448_hpc2_defconfig

@@ -87,8 +87,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set

arch/powerpc/configs/mpc8272_ads_defconfig

@@ -85,8 +85,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -867,7 +868,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/mpc8313_rdb_defconfig

@@ -87,8 +87,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -1272,7 +1273,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/mpc832x_mds_defconfig

@@ -87,8 +87,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set

arch/powerpc/configs/mpc832x_rdb_defconfig

@@ -87,8 +87,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set

arch/powerpc/configs/mpc834x_itx_defconfig

@@ -87,8 +87,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set

arch/powerpc/configs/mpc834x_itxgp_defconfig

@@ -87,8 +87,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set

arch/powerpc/configs/mpc834x_mds_defconfig

@@ -87,8 +87,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set

arch/powerpc/configs/mpc836x_mds_defconfig

@@ -87,8 +87,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set

arch/powerpc/configs/mpc8540_ads_defconfig

@@ -90,8 +90,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -704,7 +705,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/mpc8544_ds_defconfig

@@ -93,8 +93,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -1427,7 +1428,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/mpc8560_ads_defconfig

@@ -94,8 +94,9 @@ CONFIG_SIGNALFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -791,7 +792,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/mpc8568mds_defconfig

@@ -88,8 +88,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -949,7 +950,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/mpc8572_ds_defconfig

@@ -93,8 +93,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -1427,7 +1428,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/mpc85xx_cds_defconfig

@@ -90,8 +90,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -832,7 +833,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/mpc8610_hpcd_defconfig

@@ -88,8 +88,9 @@ CONFIG_SIGNALFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -993,7 +994,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/mpc8641_hpcn_defconfig

@@ -94,8 +94,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -1432,7 +1433,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/mpc866_ads_defconfig

@@ -83,8 +83,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 # CONFIG_VM_EVENT_COUNTERS is not set
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set

arch/powerpc/configs/pasemi_defconfig

@@ -90,8 +90,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -1588,7 +1589,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/pmac32_defconfig

@@ -91,8 +91,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -1829,7 +1830,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/ppc64_defconfig

@@ -96,8 +96,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -216,6 +217,10 @@ CONFIG_AXON_RAM=m
 #
 # Kernel options
 #
+CONFIG_TICK_ONESHOT=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
 # CONFIG_HZ_100 is not set
 CONFIG_HZ_250=y
 # CONFIG_HZ_300 is not set
@@ -1750,7 +1755,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/pq2fads_defconfig

@@ -86,8 +86,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -930,7 +931,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_SCHED_DEBUG is not set
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/prpmc2800_defconfig

@@ -89,8 +89,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set

arch/powerpc/configs/ps3_defconfig

@@ -91,8 +91,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -1059,7 +1060,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 CONFIG_DEBUG_SPINLOCK=y

arch/powerpc/configs/pseries_defconfig

@@ -96,8 +96,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -176,6 +177,10 @@ CONFIG_IBMEBUS=y
 #
 # Kernel options
 #
+CONFIG_TICK_ONESHOT=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
 # CONFIG_HZ_100 is not set
 CONFIG_HZ_250=y
 # CONFIG_HZ_300 is not set
@@ -1504,7 +1509,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/sequoia_defconfig

@@ -91,8 +91,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -781,7 +782,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/configs/walnut_defconfig

@@ -87,8 +87,9 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -706,7 +707,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/powerpc/kernel/entry_64.S

@@ -408,6 +408,12 @@ END_FTR_SECTION_IFSET(CPU_FTR_1T_SEGMENT)
 	std	r7,SLBSHADOW_STACKVSID(r9)  /* Save VSID */
 	std	r0,SLBSHADOW_STACKESID(r9)  /* Save ESID */
 
+	/* No need to check for CPU_FTR_NO_SLBIE_B here, since when
+	 * we have 1TB segments, the only CPUs known to have the errata
+	 * only support less than 1TB of system memory and we'll never
+	 * actually hit this code path.
+	 */
+
 	slbie	r6
 	slbie	r6		/* Workaround POWER5 < DD2.1 issue */
 	slbmte	r7,r0

arch/powerpc/kernel/ibmebus.c

@@ -41,6 +41,7 @@
 #include <linux/kobject.h>
 #include <linux/dma-mapping.h>
 #include <linux/interrupt.h>
+#include <linux/of_platform.h>
 #include <asm/ibmebus.h>
 #include <asm/abs_addr.h>
 
@@ -50,6 +51,13 @@ static struct device ibmebus_bus_device = { /* fake "parent" device */
 
 struct bus_type ibmebus_bus_type;
 
+/* These devices will automatically be added to the bus during init */
+static struct of_device_id builtin_matches[] = {
+	{ .compatible = "IBM,lhca" },
+	{ .compatible = "IBM,lhea" },
+	{},
+};
+
 static void *ibmebus_alloc_coherent(struct device *dev,
 				    size_t size,
 				    dma_addr_t *dma_handle,
@@ -124,190 +132,87 @@ static struct dma_mapping_ops ibmebus_dma_ops = {
 	.dma_supported  = ibmebus_dma_supported,
 };
 
-static int ibmebus_bus_probe(struct device *dev)
+static int ibmebus_match_path(struct device *dev, void *data)
 {
-	struct ibmebus_dev *ibmebusdev    = to_ibmebus_dev(dev);
-	struct ibmebus_driver *ibmebusdrv = to_ibmebus_driver(dev->driver);
-	const struct of_device_id *id;
-	int error = -ENODEV;
-
-	if (!ibmebusdrv->probe)
-		return error;
-
-	id = of_match_device(ibmebusdrv->id_table, &ibmebusdev->ofdev);
-	if (id) {
-		error = ibmebusdrv->probe(ibmebusdev, id);
-	}
-
-	return error;
+	struct device_node *dn = to_of_device(dev)->node;
+	return (dn->full_name &&
+		(strcasecmp((char *)data, dn->full_name) == 0));
 }
 
-static int ibmebus_bus_remove(struct device *dev)
+static int ibmebus_match_node(struct device *dev, void *data)
 {
-	struct ibmebus_dev *ibmebusdev    = to_ibmebus_dev(dev);
-	struct ibmebus_driver *ibmebusdrv = to_ibmebus_driver(dev->driver);
-
-	if (ibmebusdrv->remove) {
-		return ibmebusdrv->remove(ibmebusdev);
-	}
-
-	return 0;
+	return to_of_device(dev)->node == data;
 }
 
-static void __devinit ibmebus_dev_release(struct device *dev)
+static int ibmebus_create_device(struct device_node *dn)
 {
-	of_node_put(to_ibmebus_dev(dev)->ofdev.node);
-	kfree(to_ibmebus_dev(dev));
-}
-
-static int __devinit ibmebus_register_device_common(
-	struct ibmebus_dev *dev, const char *name)
-{
-	int err = 0;
-
-	dev->ofdev.dev.parent  = &ibmebus_bus_device;
-	dev->ofdev.dev.bus     = &ibmebus_bus_type;
-	dev->ofdev.dev.release = ibmebus_dev_release;
+	struct of_device *dev;
+	int ret;
 
-	dev->ofdev.dev.archdata.of_node = dev->ofdev.node;
-	dev->ofdev.dev.archdata.dma_ops = &ibmebus_dma_ops;
-	dev->ofdev.dev.archdata.numa_node = of_node_to_nid(dev->ofdev.node);
-
-	/* An ibmebusdev is based on a of_device. We have to change the
-	 * bus type to use our own DMA mapping operations.
-	 */
-	if ((err = of_device_register(&dev->ofdev)) != 0) {
-		printk(KERN_ERR "%s: failed to register device (%d).\n",
-		       __FUNCTION__, err);
-		return -ENODEV;
-	}
-
-	return 0;
-}
-
-static struct ibmebus_dev* __devinit ibmebus_register_device_node(
-	struct device_node *dn)
-{
-	struct ibmebus_dev *dev;
-	int i, len, bus_len;
-
-	dev = kzalloc(sizeof(struct ibmebus_dev), GFP_KERNEL);
+	dev = of_device_alloc(dn, NULL, &ibmebus_bus_device);
 	if (!dev)
-		return ERR_PTR(-ENOMEM);
-
-	dev->ofdev.node = of_node_get(dn);
-
-	len = strlen(dn->full_name + 1);
-	bus_len = min(len, BUS_ID_SIZE - 1);
-	memcpy(dev->ofdev.dev.bus_id, dn->full_name + 1
-	       + (len - bus_len), bus_len);
-	for (i = 0; i < bus_len; i++)
-		if (dev->ofdev.dev.bus_id[i] == '/')
-			dev->ofdev.dev.bus_id[i] = '_';
-
-	/* Register with generic device framework. */
-	if (ibmebus_register_device_common(dev, dn->name) != 0) {
-		kfree(dev);
-		return ERR_PTR(-ENODEV);
-	}
-
-	return dev;
-}
-
-static void ibmebus_probe_of_nodes(char* name)
-{
-	struct device_node *dn = NULL;
-
-	while ((dn = of_find_node_by_name(dn, name))) {
-		if (IS_ERR(ibmebus_register_device_node(dn))) {
-			of_node_put(dn);
-			return;
-		}
-	}
-
-	of_node_put(dn);
+		return -ENOMEM;
 
-	return;
-}
+	dev->dev.bus = &ibmebus_bus_type;
+	dev->dev.archdata.dma_ops = &ibmebus_dma_ops;
 
-static void ibmebus_add_devices_by_id(struct of_device_id *idt)
-{
-	while (strlen(idt->name) > 0) {
-		ibmebus_probe_of_nodes(idt->name);
-		idt++;
+	ret = of_device_register(dev);
+	if (ret) {
+		of_device_free(dev);
+		return ret;
 	}
 
-	return;
-}
-
-static int ibmebus_match_name(struct device *dev, void *data)
-{
-	const struct ibmebus_dev *ebus_dev = to_ibmebus_dev(dev);
-	const char *name;
-
-	name = of_get_property(ebus_dev->ofdev.node, "name", NULL);
-
-	if (name && (strcmp(data, name) == 0))
-		return 1;
-
 	return 0;
 }
 
-static int ibmebus_unregister_device(struct device *dev)
+static int ibmebus_create_devices(const struct of_device_id *matches)
 {
-	of_device_unregister(to_of_device(dev));
+	struct device_node *root, *child;
+	int ret = 0;
 
-	return 0;
-}
+	root = of_find_node_by_path("/");
 
-static void ibmebus_remove_devices_by_id(struct of_device_id *idt)
-{
-	struct device *dev;
+	for (child = NULL; (child = of_get_next_child(root, child)); ) {
+		if (!of_match_node(matches, child))
+			continue;
 
-	while (strlen(idt->name) > 0) {
-		while ((dev = bus_find_device(&ibmebus_bus_type, NULL,
-					      (void*)idt->name,
-					      ibmebus_match_name))) {
-			ibmebus_unregister_device(dev);
+		if (bus_find_device(&ibmebus_bus_type, NULL, child,
+				    ibmebus_match_node))
+			continue;
+
+		ret = ibmebus_create_device(child);
+		if (ret) {
+			printk(KERN_ERR "%s: failed to create device (%i)",
+			       __FUNCTION__, ret);
+			of_node_put(child);
+			break;
 		}
-		idt++;
 	}
 
-	return;
+	of_node_put(root);
+	return ret;
 }
 
-int ibmebus_register_driver(struct ibmebus_driver *drv)
+int ibmebus_register_driver(struct of_platform_driver *drv)
 {
-	int err = 0;
+	/* If the driver uses devices that ibmebus doesn't know, add them */
+	ibmebus_create_devices(drv->match_table);
 
 	drv->driver.name   = drv->name;
 	drv->driver.bus    = &ibmebus_bus_type;
-	drv->driver.probe  = ibmebus_bus_probe;
-	drv->driver.remove = ibmebus_bus_remove;
 
-	if ((err = driver_register(&drv->driver) != 0))
-		return err;
-
-	/* remove all supported devices first, in case someone
-	 * probed them manually before registering the driver */
-	ibmebus_remove_devices_by_id(drv->id_table);
-	ibmebus_add_devices_by_id(drv->id_table);
-
-	return 0;
+	return driver_register(&drv->driver);
 }
 EXPORT_SYMBOL(ibmebus_register_driver);
 
-void ibmebus_unregister_driver(struct ibmebus_driver *drv)
+void ibmebus_unregister_driver(struct of_platform_driver *drv)
 {
 	driver_unregister(&drv->driver);
-	ibmebus_remove_devices_by_id(drv->id_table);
 }
 EXPORT_SYMBOL(ibmebus_unregister_driver);
 
-int ibmebus_request_irq(struct ibmebus_dev *dev,
-			u32 ist,
-			irq_handler_t handler,
-			unsigned long irq_flags, const char * devname,
+int ibmebus_request_irq(u32 ist, irq_handler_t handler,
+			unsigned long irq_flags, const char *devname,
 			void *dev_id)
 {
 	unsigned int irq = irq_create_mapping(NULL, ist);
@@ -315,12 +220,11 @@ int ibmebus_request_irq(struct ibmebus_dev *dev,
 	if (irq == NO_IRQ)
 		return -EINVAL;
 
-	return request_irq(irq, handler,
-			   irq_flags, devname, dev_id);
+	return request_irq(irq, handler, irq_flags, devname, dev_id);
 }
 EXPORT_SYMBOL(ibmebus_request_irq);
 
-void ibmebus_free_irq(struct ibmebus_dev *dev, u32 ist, void *dev_id)
+void ibmebus_free_irq(u32 ist, void *dev_id)
 {
 	unsigned int irq = irq_find_mapping(NULL, ist);
 
@@ -328,29 +232,10 @@ void ibmebus_free_irq(struct ibmebus_dev *dev, u32 ist, void *dev_id)
 }
 EXPORT_SYMBOL(ibmebus_free_irq);
 
-static int ibmebus_bus_match(struct device *dev, struct device_driver *drv)
-{
-	const struct ibmebus_dev *ebus_dev = to_ibmebus_dev(dev);
-	struct ibmebus_driver *ebus_drv    = to_ibmebus_driver(drv);
-	const struct of_device_id *ids     = ebus_drv->id_table;
-	const struct of_device_id *found_id;
-
-	if (!ids)
-		return 0;
-
-	found_id = of_match_device(ids, &ebus_dev->ofdev);
-	if (found_id)
-		return 1;
-
-	return 0;
-}
-
 static ssize_t name_show(struct device *dev,
 			 struct device_attribute *attr, char *buf)
 {
-	struct ibmebus_dev *ebus_dev = to_ibmebus_dev(dev);
-	const char *name = of_get_property(ebus_dev->ofdev.node, "name", NULL);
-	return sprintf(buf, "%s\n", name);
+	return sprintf(buf, "%s\n", to_of_device(dev)->node->name);
 }
 
 static struct device_attribute ibmebus_dev_attrs[] = {
@@ -358,18 +243,6 @@ static struct device_attribute ibmebus_dev_attrs[] = {
 	__ATTR_NULL
 };
 
-static int ibmebus_match_path(struct device *dev, void *data)
-{
-	int rc;
-	struct device_node *dn =
-		of_node_get(to_ibmebus_dev(dev)->ofdev.node);
-
-	rc = (dn->full_name && (strcasecmp((char*)data, dn->full_name) == 0));
-
-	of_node_put(dn);
-	return rc;
-}
-
 static char *ibmebus_chomp(const char *in, size_t count)
 {
 	char *out = kmalloc(count + 1, GFP_KERNEL);
@@ -389,9 +262,8 @@ static ssize_t ibmebus_store_probe(struct bus_type *bus,
 				   const char *buf, size_t count)
 {
 	struct device_node *dn = NULL;
-	struct ibmebus_dev *dev;
 	char *path;
-	ssize_t rc;
+	ssize_t rc = 0;
 
 	path = ibmebus_chomp(buf, count);
 	if (!path)
@@ -406,9 +278,8 @@ static ssize_t ibmebus_store_probe(struct bus_type *bus,
 	}
 
 	if ((dn = of_find_node_by_path(path))) {
-		dev = ibmebus_register_device_node(dn);
+		rc = ibmebus_create_device(dn);
 		of_node_put(dn);
-		rc = IS_ERR(dev) ? PTR_ERR(dev) : count;
 	} else {
 		printk(KERN_WARNING "%s: no such device node: %s\n",
 		       __FUNCTION__, path);
@@ -417,7 +288,9 @@ static ssize_t ibmebus_store_probe(struct bus_type *bus,
 
 out:
 	kfree(path);
-	return rc;
+	if (rc)
+		return rc;
+	return count;
 }
 
 static ssize_t ibmebus_store_remove(struct bus_type *bus,
@@ -432,7 +305,7 @@ static ssize_t ibmebus_store_remove(struct bus_type *bus,
 
 	if ((dev = bus_find_device(&ibmebus_bus_type, NULL, path,
 				   ibmebus_match_path))) {
-		ibmebus_unregister_device(dev);
+		of_device_unregister(to_of_device(dev));
 
 		kfree(path);
 		return count;
@@ -452,8 +325,7 @@ static struct bus_attribute ibmebus_bus_attrs[] = {
 };
 
 struct bus_type ibmebus_bus_type = {
-	.name      = "ibmebus",
-	.match     = ibmebus_bus_match,
+	.uevent    = of_device_uevent,
 	.dev_attrs = ibmebus_dev_attrs,
 	.bus_attrs = ibmebus_bus_attrs
 };
@@ -465,9 +337,9 @@ static int __init ibmebus_bus_init(void)
 
 	printk(KERN_INFO "IBM eBus Device Driver\n");
 
-	err = bus_register(&ibmebus_bus_type);
+	err = of_bus_type_init(&ibmebus_bus_type, "ibmebus");
 	if (err) {
-		printk(KERN_ERR ":%s: failed to register IBM eBus.\n",
+		printk(KERN_ERR "%s: failed to register IBM eBus.\n",
 		       __FUNCTION__);
 		return err;
 	}
@@ -481,6 +353,13 @@ static int __init ibmebus_bus_init(void)
 		return err;
 	}
 
+	err = ibmebus_create_devices(builtin_matches);
+	if (err) {
+		device_unregister(&ibmebus_bus_device);
+		bus_unregister(&ibmebus_bus_type);
+		return err;
+	}
+
 	return 0;
 }
-__initcall(ibmebus_bus_init);
+postcore_initcall(ibmebus_bus_init);

arch/powerpc/kernel/of_device.c

@@ -7,8 +7,88 @@
 #include <linux/slab.h>
 
 #include <asm/errno.h>
+#include <asm/dcr.h>
 #include <asm/of_device.h>
 
+static void of_device_make_bus_id(struct of_device *dev)
+{
+	static atomic_t bus_no_reg_magic;
+	struct device_node *node = dev->node;
+	char *name = dev->dev.bus_id;
+	const u32 *reg;
+	u64 addr;
+	int magic;
+
+	/*
+	 * If it's a DCR based device, use 'd' for native DCRs
+	 * and 'D' for MMIO DCRs.
+	 */
+#ifdef CONFIG_PPC_DCR
+	reg = of_get_property(node, "dcr-reg", NULL);
+	if (reg) {
+#ifdef CONFIG_PPC_DCR_NATIVE
+		snprintf(name, BUS_ID_SIZE, "d%x.%s",
+			 *reg, node->name);
+#else /* CONFIG_PPC_DCR_NATIVE */
+		addr = of_translate_dcr_address(node, *reg, NULL);
+		if (addr != OF_BAD_ADDR) {
+			snprintf(name, BUS_ID_SIZE,
+				 "D%llx.%s", (unsigned long long)addr,
+				 node->name);
+			return;
+		}
+#endif /* !CONFIG_PPC_DCR_NATIVE */
+	}
+#endif /* CONFIG_PPC_DCR */
+
+	/*
+	 * For MMIO, get the physical address
+	 */
+	reg = of_get_property(node, "reg", NULL);
+	if (reg) {
+		addr = of_translate_address(node, reg);
+		if (addr != OF_BAD_ADDR) {
+			snprintf(name, BUS_ID_SIZE,
+				 "%llx.%s", (unsigned long long)addr,
+				 node->name);
+			return;
+		}
+	}
+
+	/*
+	 * No BusID, use the node name and add a globally incremented
+	 * counter (and pray...)
+	 */
+	magic = atomic_add_return(1, &bus_no_reg_magic);
+	snprintf(name, BUS_ID_SIZE, "%s.%d", node->name, magic - 1);
+}
+
+struct of_device *of_device_alloc(struct device_node *np,
+				  const char *bus_id,
+				  struct device *parent)
+{
+	struct of_device *dev;
+
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return NULL;
+
+	dev->node = of_node_get(np);
+	dev->dev.dma_mask = &dev->dma_mask;
+	dev->dev.parent = parent;
+	dev->dev.release = of_release_dev;
+	dev->dev.archdata.of_node = np;
+	dev->dev.archdata.numa_node = of_node_to_nid(np);
+
+	if (bus_id)
+		strlcpy(dev->dev.bus_id, bus_id, BUS_ID_SIZE);
+	else
+		of_device_make_bus_id(dev);
+
+	return dev;
+}
+EXPORT_SYMBOL(of_device_alloc);
+
 ssize_t of_device_get_modalias(struct of_device *ofdev,
 				char *str, ssize_t len)
 {

arch/powerpc/kernel/of_platform.c

@@ -23,7 +23,6 @@
 #include <linux/of_platform.h>
 
 #include <asm/errno.h>
-#include <asm/dcr.h>
 #include <asm/topology.h>
 #include <asm/pci-bridge.h>
 #include <asm/ppc-pci.h>
@@ -53,8 +52,6 @@ static struct of_device_id of_default_bus_ids[] = {
 	{},
 };
 
-static atomic_t bus_no_reg_magic;
-
 struct bus_type of_platform_bus_type = {
        .uevent	= of_device_uevent,
 };
@@ -87,89 +84,26 @@ void of_unregister_platform_driver(struct of_platform_driver *drv)
 }
 EXPORT_SYMBOL(of_unregister_platform_driver);
 
-static void of_platform_make_bus_id(struct of_device *dev)
-{
-	struct device_node *node = dev->node;
-	char *name = dev->dev.bus_id;
-	const u32 *reg;
-	u64 addr;
-	int magic;
-
-	/*
-	 * If it's a DCR based device, use 'd' for native DCRs
-	 * and 'D' for MMIO DCRs.
-	 */
-#ifdef CONFIG_PPC_DCR
-	reg = of_get_property(node, "dcr-reg", NULL);
-	if (reg) {
-#ifdef CONFIG_PPC_DCR_NATIVE
-		snprintf(name, BUS_ID_SIZE, "d%x.%s",
-			 *reg, node->name);
-#else /* CONFIG_PPC_DCR_NATIVE */
-		addr = of_translate_dcr_address(node, *reg, NULL);
-		if (addr != OF_BAD_ADDR) {
-			snprintf(name, BUS_ID_SIZE,
-				 "D%llx.%s", (unsigned long long)addr,
-				 node->name);
-			return;
-		}
-#endif /* !CONFIG_PPC_DCR_NATIVE */
-	}
-#endif /* CONFIG_PPC_DCR */
-
-	/*
-	 * For MMIO, get the physical address
-	 */
-	reg = of_get_property(node, "reg", NULL);
-	if (reg) {
-		addr = of_translate_address(node, reg);
-		if (addr != OF_BAD_ADDR) {
-			snprintf(name, BUS_ID_SIZE,
-				 "%llx.%s", (unsigned long long)addr,
-				 node->name);
-			return;
-		}
-	}
-
-	/*
-	 * No BusID, use the node name and add a globally incremented
-	 * counter (and pray...)
-	 */
-	magic = atomic_add_return(1, &bus_no_reg_magic);
-	snprintf(name, BUS_ID_SIZE, "%s.%d", node->name, magic - 1);
-}
-
 struct of_device* of_platform_device_create(struct device_node *np,
 					    const char *bus_id,
 					    struct device *parent)
 {
 	struct of_device *dev;
 
-	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	dev = of_device_alloc(np, bus_id, parent);
 	if (!dev)
 		return NULL;
 
-	dev->node = of_node_get(np);
 	dev->dma_mask = 0xffffffffUL;
-	dev->dev.dma_mask = &dev->dma_mask;
-	dev->dev.parent = parent;
 	dev->dev.bus = &of_platform_bus_type;
-	dev->dev.release = of_release_dev;
-	dev->dev.archdata.of_node = np;
-	dev->dev.archdata.numa_node = of_node_to_nid(np);
 
 	/* We do not fill the DMA ops for platform devices by default.
 	 * This is currently the responsibility of the platform code
 	 * to do such, possibly using a device notifier
 	 */
 
-	if (bus_id)
-		strlcpy(dev->dev.bus_id, bus_id, BUS_ID_SIZE);
-	else
-		of_platform_make_bus_id(dev);
-
 	if (of_device_register(dev) != 0) {
-		kfree(dev);
+		of_device_free(dev);
 		return NULL;
 	}
 

arch/powerpc/kernel/setup_64.c

@@ -426,11 +426,14 @@ void __init setup_system(void)
 	printk("-----------------------------------------------------\n");
 	printk("ppc64_pft_size                = 0x%lx\n", ppc64_pft_size);
 	printk("physicalMemorySize            = 0x%lx\n", lmb_phys_mem_size());
-	printk("ppc64_caches.dcache_line_size = 0x%x\n",
-	       ppc64_caches.dline_size);
-	printk("ppc64_caches.icache_line_size = 0x%x\n",
-	       ppc64_caches.iline_size);
-	printk("htab_address                  = 0x%p\n", htab_address);
+	if (ppc64_caches.dline_size != 0x80)
+		printk("ppc64_caches.dcache_line_size = 0x%x\n",
+		       ppc64_caches.dline_size);
+	if (ppc64_caches.iline_size != 0x80)
+		printk("ppc64_caches.icache_line_size = 0x%x\n",
+		       ppc64_caches.iline_size);
+	if (htab_address)
+		printk("htab_address                  = 0x%p\n", htab_address);
 	printk("htab_hash_mask                = 0x%lx\n", htab_hash_mask);
 #if PHYSICAL_START > 0
 	printk("physical_start                = 0x%x\n", PHYSICAL_START);

arch/powerpc/kernel/time.c

@@ -829,7 +829,7 @@ static void register_decrementer_clockevent(int cpu)
 	*dec = decrementer_clockevent;
 	dec->cpumask = cpumask_of_cpu(cpu);
 
-	printk(KERN_ERR "clockevent: %s mult[%lx] shift[%d] cpu[%d]\n",
+	printk(KERN_INFO "clockevent: %s mult[%lx] shift[%d] cpu[%d]\n",
 	       dec->name, dec->mult, dec->shift, cpu);
 
 	clockevents_register_device(dec);

arch/powerpc/kernel/vdso64/sigtramp.S

@@ -134,13 +134,16 @@ V_FUNCTION_END(__kernel_sigtramp_rt64)
 9:
 
 /* This is where the pt_regs pointer can be found on the stack.  */
-#define PTREGS 128+168+56
+#define PTREGS	128+168+56
 
 /* Size of regs.  */
-#define RSIZE 8
+#define RSIZE	8
+
+/* Size of CR reg in DWARF unwind info. */
+#define CRSIZE	4
 
 /* This is the offset of the VMX reg pointer.  */
-#define VREGS 48*RSIZE+33*8
+#define VREGS	48*RSIZE+33*8
 
 /* Describe where general purpose regs are saved.  */
 #define EH_FRAME_GEN \
@@ -178,7 +181,7 @@ V_FUNCTION_END(__kernel_sigtramp_rt64)
   rsave (31, 31*RSIZE);							\
   rsave (67, 32*RSIZE);		/* ap, used as temp for nip */		\
   rsave (65, 36*RSIZE);		/* lr */				\
-  rsave (70, 38*RSIZE)		/* cr */
+  rsave (70, 38*RSIZE + (RSIZE - CRSIZE)) /* cr */
 
 /* Describe where the FP regs are saved.  */
 #define EH_FRAME_FP \

arch/powerpc/lib/Makefile

@@ -14,7 +14,6 @@ endif
 
 obj-$(CONFIG_PPC64)	+= copypage_64.o copyuser_64.o \
 			   memcpy_64.o usercopy_64.o mem_64.o string.o
-obj-$(CONFIG_QUICC_ENGINE) += rheap.o
 obj-$(CONFIG_XMON)	+= sstep.o
 obj-$(CONFIG_KPROBES)	+= sstep.o
 obj-$(CONFIG_NOT_COHERENT_CACHE)	+= dma-noncoherent.o
@@ -23,6 +22,4 @@ ifeq ($(CONFIG_PPC64),y)
 obj-$(CONFIG_SMP)	+= locks.o
 endif
 
-# Temporary hack until we have migrated to asm-powerpc
-obj-$(CONFIG_8xx)	+= rheap.o
-obj-$(CONFIG_CPM2)	+= rheap.o
+obj-$(CONFIG_PPC_LIB_RHEAP) += rheap.o

arch/powerpc/lib/rheap.c

@@ -15,6 +15,7 @@
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/err.h>
 #include <linux/slab.h>
@@ -275,6 +276,7 @@ rh_info_t *rh_create(unsigned int alignment)
 
 	return info;
 }
+EXPORT_SYMBOL_GPL(rh_create);
 
 /*
  * Destroy a dynamically created remote heap.  Deallocate only if the areas
@@ -288,6 +290,7 @@ void rh_destroy(rh_info_t * info)
 	if ((info->flags & RHIF_STATIC_INFO) == 0)
 		kfree(info);
 }
+EXPORT_SYMBOL_GPL(rh_destroy);
 
 /*
  * Initialize in place a remote heap info block.  This is needed to support
@@ -320,6 +323,7 @@ void rh_init(rh_info_t * info, unsigned int alignment, int max_blocks,
 	for (i = 0, blk = block; i < max_blocks; i++, blk++)
 		list_add(&blk->list, &info->empty_list);
 }
+EXPORT_SYMBOL_GPL(rh_init);
 
 /* Attach a free memory region, coalesces regions if adjuscent */
 int rh_attach_region(rh_info_t * info, unsigned long start, int size)
@@ -360,6 +364,7 @@ int rh_attach_region(rh_info_t * info, unsigned long start, int size)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(rh_attach_region);
 
 /* Detatch given address range, splits free block if needed. */
 unsigned long rh_detach_region(rh_info_t * info, unsigned long start, int size)
@@ -428,6 +433,7 @@ unsigned long rh_detach_region(rh_info_t * info, unsigned long start, int size)
 
 	return s;
 }
+EXPORT_SYMBOL_GPL(rh_detach_region);
 
 /* Allocate a block of memory at the specified alignment.  The value returned
  * is an offset into the buffer initialized by rh_init(), or a negative number
@@ -502,6 +508,7 @@ unsigned long rh_alloc_align(rh_info_t * info, int size, int alignment, const ch
 
 	return start;
 }
+EXPORT_SYMBOL_GPL(rh_alloc_align);
 
 /* Allocate a block of memory at the default alignment.  The value returned is
  * an offset into the buffer initialized by rh_init(), or a negative number if
@@ -511,6 +518,7 @@ unsigned long rh_alloc(rh_info_t * info, int size, const char *owner)
 {
 	return rh_alloc_align(info, size, info->alignment, owner);
 }
+EXPORT_SYMBOL_GPL(rh_alloc);
 
 /* Allocate a block of memory at the given offset, rounded up to the default
  * alignment.  The value returned is an offset into the buffer initialized by
@@ -594,6 +602,7 @@ unsigned long rh_alloc_fixed(rh_info_t * info, unsigned long start, int size, co
 
 	return start;
 }
+EXPORT_SYMBOL_GPL(rh_alloc_fixed);
 
 /* Deallocate the memory previously allocated by one of the rh_alloc functions.
  * The return value is the size of the deallocated block, or a negative number
@@ -626,6 +635,7 @@ int rh_free(rh_info_t * info, unsigned long start)
 
 	return size;
 }
+EXPORT_SYMBOL_GPL(rh_free);
 
 int rh_get_stats(rh_info_t * info, int what, int max_stats, rh_stats_t * stats)
 {
@@ -663,6 +673,7 @@ int rh_get_stats(rh_info_t * info, int what, int max_stats, rh_stats_t * stats)
 
 	return nr;
 }
+EXPORT_SYMBOL_GPL(rh_get_stats);
 
 int rh_set_owner(rh_info_t * info, unsigned long start, const char *owner)
 {
@@ -687,6 +698,7 @@ int rh_set_owner(rh_info_t * info, unsigned long start, const char *owner)
 
 	return size;
 }
+EXPORT_SYMBOL_GPL(rh_set_owner);
 
 void rh_dump(rh_info_t * info)
 {
@@ -722,6 +734,7 @@ void rh_dump(rh_info_t * info)
 		       st[i].size, st[i].owner != NULL ? st[i].owner : "");
 	printk(KERN_INFO "\n");
 }
+EXPORT_SYMBOL_GPL(rh_dump);
 
 void rh_dump_blk(rh_info_t * info, rh_block_t * blk)
 {
@@ -729,3 +742,5 @@ void rh_dump_blk(rh_info_t * info, rh_block_t * blk)
 	       "blk @0x%p: 0x%lx-0x%lx (%u)\n",
 	       blk, blk->start, blk->start + blk->size, blk->size);
 }
+EXPORT_SYMBOL_GPL(rh_dump_blk);
+

arch/powerpc/math-emu/math.c

@@ -407,11 +407,16 @@ do_mathemu(struct pt_regs *regs)
 
 	case XE:
 		idx = (insn >> 16) & 0x1f;
-		if (!idx)
-			goto illegal;
-
 		op0 = (void *)&current->thread.fpr[(insn >> 21) & 0x1f];
-		op1 = (void *)(regs->gpr[idx] + regs->gpr[(insn >> 11) & 0x1f]);
+		if (!idx) {
+			if (((insn >> 1) & 0x3ff) == STFIWX)
+				op1 = (void *)(regs->gpr[(insn >> 11) & 0x1f]);
+			else
+				goto illegal;
+		} else {
+			op1 = (void *)(regs->gpr[idx] + regs->gpr[(insn >> 11) & 0x1f]);
+		}
+
 		break;
 
 	case XEU:

arch/powerpc/mm/hash_utils_64.c

@@ -209,9 +209,10 @@ static int __init htab_dt_scan_seg_sizes(unsigned long node,
 		if (prop[0] == 40) {
 			DBG("1T segment support detected\n");
 			cur_cpu_spec->cpu_features |= CPU_FTR_1T_SEGMENT;
+			return 1;
 		}
-		return 1;
 	}
+	cur_cpu_spec->cpu_features &= ~CPU_FTR_NO_SLBIE_B;
 	return 0;
 }
 

arch/powerpc/mm/init_64.c

@@ -240,7 +240,7 @@ int __meminit vmemmap_populate(struct page *start_page,
 			return -ENOMEM;
 
 		printk(KERN_WARNING "vmemmap %08lx allocated at %p, "
-					"physical %p.\n", start, p, __pa(p));
+		                    "physical %08lx.\n", start, p, __pa(p));
 
 		mapped = htab_bolt_mapping(start, start + page_size,
 					__pa(p), mode_rw, mmu_linear_psize,

arch/powerpc/mm/slb.c

@@ -157,7 +157,8 @@ void switch_slb(struct task_struct *tsk, struct mm_struct *mm)
 	unsigned long stack = KSTK_ESP(tsk);
 	unsigned long unmapped_base;
 
-	if (offset <= SLB_CACHE_ENTRIES) {
+	if (!cpu_has_feature(CPU_FTR_NO_SLBIE_B) &&
+	    offset <= SLB_CACHE_ENTRIES) {
 		int i;
 		asm volatile("isync" : : : "memory");
 		for (i = 0; i < offset; i++) {

arch/powerpc/platforms/Kconfig

@@ -264,6 +264,7 @@ config TAU_AVERAGE
 
 config QUICC_ENGINE
 	bool
+	select PPC_LIB_RHEAP
 	help
 	  The QUICC Engine (QE) is a new generation of communications
 	  coprocessors on Freescale embedded CPUs (akin to CPM in older chips).
@@ -274,6 +275,7 @@ config CPM2
 	bool
 	default n
 	select CPM
+	select PPC_LIB_RHEAP
 	help
 	  The CPM2 (Communications Processor Module) is a coprocessor on
 	  embedded CPUs made by Freescale.  Selecting this option means that
@@ -313,4 +315,6 @@ config FSL_ULI1575
 config CPM
 	bool
 
+source "arch/powerpc/sysdev/bestcomm/Kconfig"
+
 endmenu

arch/powerpc/platforms/Kconfig.cputype

@@ -37,6 +37,7 @@ config PPC_8xx
 	select FSL_SOC
 	select 8xx
 	select WANT_DEVICE_TREE
+	select PPC_LIB_RHEAP
 
 config 40x
 	bool "AMCC 40x"

arch/powerpc/platforms/iseries/htab.c

@@ -39,9 +39,9 @@ static inline void iSeries_hunlock(unsigned long slot)
 	spin_unlock(&iSeries_hlocks[(slot >> 4) & 0x3f]);
 }
 
-long iSeries_hpte_insert(unsigned long hpte_group, unsigned long va,
+static long iSeries_hpte_insert(unsigned long hpte_group, unsigned long va,
 			 unsigned long pa, unsigned long rflags,
-			 unsigned long vflags, int psize)
+			 unsigned long vflags, int psize, int ssize)
 {
 	long slot;
 	struct hash_pte lhpte;

arch/powerpc/platforms/iseries/vio.c

@@ -2,7 +2,7 @@
  * Legacy iSeries specific vio initialisation
  * that needs to be built in (not a module).
  *
- * © Copyright 2007 IBM Corporation
+ * © Copyright 2007 IBM Corporation
  *	Author: Stephen Rothwell
  *	Some parts collected from various other files
  *

arch/powerpc/sysdev/Makefile

@@ -14,6 +14,7 @@ obj-$(CONFIG_FSL_SOC)		+= fsl_soc.o
 obj-$(CONFIG_FSL_PCI)		+= fsl_pci.o
 obj-$(CONFIG_TSI108_BRIDGE)	+= tsi108_pci.o tsi108_dev.o
 obj-$(CONFIG_QUICC_ENGINE)	+= qe_lib/
+obj-$(CONFIG_PPC_BESTCOMM)	+= bestcomm/
 mv64x60-$(CONFIG_PCI)		+= mv64x60_pci.o
 obj-$(CONFIG_MV64X60)		+= $(mv64x60-y) mv64x60_pic.o mv64x60_dev.o \
 				   mv64x60_udbg.o

arch/powerpc/sysdev/bestcomm/Kconfig

@@ -0,0 +1,39 @@
+#
+# Kconfig options for Bestcomm
+#
+
+config PPC_BESTCOMM
+	tristate "Bestcomm DMA engine support"
+	depends on PPC_MPC52xx
+	default n
+	select PPC_LIB_RHEAP
+	help
+	  BestComm is the name of the communication coprocessor found
+	  on the Freescale MPC5200 family of processor. It's usage is
+	  optionnal for some drivers (like ATA), but required for
+	  others (like FEC).
+
+	  If you want to use drivers that require DMA operations,
+	  answer Y or M. Otherwise say N.
+
+config PPC_BESTCOMM_ATA
+	tristate "Bestcomm ATA task support"
+	depends on PPC_BESTCOMM
+	default n
+	help
+	  This option enables the support for the ATA task.
+
+config PPC_BESTCOMM_FEC
+	tristate "Bestcomm FEC tasks support"
+	depends on PPC_BESTCOMM
+	default n
+	help
+	  This option enables the support for the FEC tasks.
+
+config PPC_BESTCOMM_GEN_BD
+	tristate "Bestcomm GenBD tasks support"
+	depends on PPC_BESTCOMM
+	default n
+	help
+	  This option enables the support for the GenBD tasks.
+

arch/powerpc/sysdev/bestcomm/Makefile

@@ -0,0 +1,14 @@
+#
+# Makefile for BestComm & co
+#
+
+bestcomm-core-objs	:= bestcomm.o sram.o
+bestcomm-ata-objs	:= ata.o bcom_ata_task.o
+bestcomm-fec-objs	:= fec.o bcom_fec_rx_task.o bcom_fec_tx_task.o
+bestcomm-gen-bd-objs	:= gen_bd.o bcom_gen_bd_rx_task.o bcom_gen_bd_tx_task.o
+
+obj-$(CONFIG_PPC_BESTCOMM)		+= bestcomm-core.o
+obj-$(CONFIG_PPC_BESTCOMM_ATA)		+= bestcomm-ata.o
+obj-$(CONFIG_PPC_BESTCOMM_FEC)		+= bestcomm-fec.o
+obj-$(CONFIG_PPC_BESTCOMM_GEN_BD)	+= bestcomm-gen-bd.o
+ 

arch/powerpc/sysdev/bestcomm/ata.c

@@ -0,0 +1,154 @@
+/*
+ * Bestcomm ATA task driver
+ *
+ *
+ * Patterned after bestcomm/fec.c by Dale Farnsworth <dfarnsworth@mvista.com>
+ *                                   2003-2004 (c) MontaVista, Software, Inc.
+ *
+ * Copyright (C) 2006-2007 Sylvain Munaut <tnt@246tNt.com>
+ * Copyright (C) 2006      Freescale - John Rigby
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <asm/io.h>
+
+#include "bestcomm.h"
+#include "bestcomm_priv.h"
+#include "ata.h"
+
+
+/* ======================================================================== */
+/* Task image/var/inc                                                       */
+/* ======================================================================== */
+
+/* ata task image */
+extern u32 bcom_ata_task[];
+
+/* ata task vars that need to be set before enabling the task */
+struct bcom_ata_var {
+	u32 enable;		/* (u16*) address of task's control register */
+	u32 bd_base;		/* (struct bcom_bd*) beginning of ring buffer */
+	u32 bd_last;		/* (struct bcom_bd*) end of ring buffer */
+	u32 bd_start;		/* (struct bcom_bd*) current bd */
+	u32 buffer_size;	/* size of receive buffer */
+};
+
+/* ata task incs that need to be set before enabling the task */
+struct bcom_ata_inc {
+	u16 pad0;
+	s16 incr_bytes;
+	u16 pad1;
+	s16 incr_dst;
+	u16 pad2;
+	s16 incr_src;
+};
+
+
+/* ======================================================================== */
+/* Task support code                                                        */
+/* ======================================================================== */
+
+struct bcom_task *
+bcom_ata_init(int queue_len, int maxbufsize)
+{
+	struct bcom_task *tsk;
+	struct bcom_ata_var *var;
+	struct bcom_ata_inc *inc;
+
+	tsk = bcom_task_alloc(queue_len, sizeof(struct bcom_ata_bd), 0);
+	if (!tsk)
+		return NULL;
+
+	tsk->flags = BCOM_FLAGS_NONE;
+
+	bcom_ata_reset_bd(tsk);
+
+	var = (struct bcom_ata_var *) bcom_task_var(tsk->tasknum);
+	inc = (struct bcom_ata_inc *) bcom_task_inc(tsk->tasknum);
+
+	if (bcom_load_image(tsk->tasknum, bcom_ata_task)) {
+		bcom_task_free(tsk);
+		return NULL;
+	}
+
+	var->enable	= bcom_eng->regs_base +
+				offsetof(struct mpc52xx_sdma, tcr[tsk->tasknum]);
+	var->bd_base	= tsk->bd_pa;
+	var->bd_last	= tsk->bd_pa + ((tsk->num_bd-1) * tsk->bd_size);
+	var->bd_start	= tsk->bd_pa;
+	var->buffer_size = maxbufsize;
+
+	/* Configure some stuff */
+	bcom_set_task_pragma(tsk->tasknum, BCOM_ATA_PRAGMA);
+	bcom_set_task_auto_start(tsk->tasknum, tsk->tasknum);
+
+	out_8(&bcom_eng->regs->ipr[BCOM_INITIATOR_ATA_RX], BCOM_IPR_ATA_RX);
+	out_8(&bcom_eng->regs->ipr[BCOM_INITIATOR_ATA_TX], BCOM_IPR_ATA_TX);
+
+	out_be32(&bcom_eng->regs->IntPend, 1<<tsk->tasknum); /* Clear ints */
+
+	return tsk;
+}
+EXPORT_SYMBOL_GPL(bcom_ata_init);
+
+void bcom_ata_rx_prepare(struct bcom_task *tsk)
+{
+	struct bcom_ata_inc *inc;
+
+	inc = (struct bcom_ata_inc *) bcom_task_inc(tsk->tasknum);
+
+	inc->incr_bytes	= -(s16)sizeof(u32);
+	inc->incr_src	= 0;
+	inc->incr_dst	= sizeof(u32);
+
+	bcom_set_initiator(tsk->tasknum, BCOM_INITIATOR_ATA_RX);
+}
+EXPORT_SYMBOL_GPL(bcom_ata_rx_prepare);
+
+void bcom_ata_tx_prepare(struct bcom_task *tsk)
+{
+	struct bcom_ata_inc *inc;
+
+	inc = (struct bcom_ata_inc *) bcom_task_inc(tsk->tasknum);
+
+	inc->incr_bytes	= -(s16)sizeof(u32);
+	inc->incr_src	= sizeof(u32);
+	inc->incr_dst	= 0;
+
+	bcom_set_initiator(tsk->tasknum, BCOM_INITIATOR_ATA_TX);
+}
+EXPORT_SYMBOL_GPL(bcom_ata_tx_prepare);
+
+void bcom_ata_reset_bd(struct bcom_task *tsk)
+{
+	struct bcom_ata_var *var;
+
+	/* Reset all BD */
+	memset(tsk->bd, 0x00, tsk->num_bd * tsk->bd_size);
+
+	tsk->index = 0;
+	tsk->outdex = 0;
+
+	var = (struct bcom_ata_var *) bcom_task_var(tsk->tasknum);
+	var->bd_start = var->bd_base;
+}
+EXPORT_SYMBOL_GPL(bcom_ata_reset_bd);
+
+void bcom_ata_release(struct bcom_task *tsk)
+{
+	/* Nothing special for the ATA tasks */
+	bcom_task_free(tsk);
+}
+EXPORT_SYMBOL_GPL(bcom_ata_release);
+
+
+MODULE_DESCRIPTION("BestComm ATA task driver");
+MODULE_AUTHOR("John Rigby");
+MODULE_LICENSE("GPL v2");
+

arch/powerpc/sysdev/bestcomm/ata.h

@@ -0,0 +1,37 @@
+/*
+ * Header for Bestcomm ATA task driver
+ *
+ *
+ * Copyright (C) 2006 Freescale - John Rigby
+ * Copyright (C) 2006 Sylvain Munaut <tnt@246tNt.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#ifndef __BESTCOMM_ATA_H__
+#define __BESTCOMM_ATA_H__
+
+
+struct bcom_ata_bd {
+	u32	status;
+	u32	dst_pa;
+	u32	src_pa;
+};
+
+extern struct bcom_task *
+bcom_ata_init(int queue_len, int maxbufsize);
+
+extern void
+bcom_ata_rx_prepare(struct bcom_task *tsk);
+
+extern void
+bcom_ata_tx_prepare(struct bcom_task *tsk);
+
+extern void
+bcom_ata_reset_bd(struct bcom_task *tsk);
+
+
+#endif /* __BESTCOMM_ATA_H__ */
+

arch/powerpc/sysdev/bestcomm/bcom_ata_task.c

@@ -0,0 +1,67 @@
+/*
+ * Bestcomm ATA task microcode
+ *
+ * Copyright (c) 2004 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Created based on bestcom/code_dma/image_rtos1/dma_image.hex
+ */
+
+#include <asm/types.h>
+
+/*
+ * The header consists of the following fields:
+ *	u32	magic;
+ *	u8	desc_size;
+ *	u8	var_size;
+ *	u8	inc_size;
+ *	u8	first_var;
+ *	u8	reserved[8];
+ *
+ * The size fields contain the number of 32-bit words.
+ */
+
+u32 bcom_ata_task[] = {
+	/* header */
+	0x4243544b,
+	0x0e060709,
+	0x00000000,
+	0x00000000,
+
+	/* Task descriptors */
+	0x8198009b, /* LCD: idx0 = var3; idx0 <= var2; idx0 += inc3 */
+	0x13e00c08, /*   DRD1A: var3 = var1; FN=0 MORE init=31 WS=0 RS=0 */
+	0xb8000264, /*   LCD: idx1 = *idx0, idx2 = var0; idx1 < var9; idx1 += inc4, idx2 += inc4 */
+	0x10000f00, /*     DRD1A: var3 = idx0; FN=0 MORE init=0 WS=0 RS=0 */
+	0x60140002, /*     DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT init=0 WS=2 RS=2 */
+	0x0c8cfc8a, /*     DRD2B1: *idx2 = EU3(); EU3(*idx2,var10)  */
+	0xd8988240, /*   LCDEXT: idx1 = idx1; idx1 > var9; idx1 += inc0 */
+	0xf845e011, /*   LCDEXT: idx2 = *(idx0 + var00000015); ; idx2 += inc2 */
+	0xb845e00a, /*   LCD: idx3 = *(idx0 + var00000019); ; idx3 += inc1 */
+	0x0bfecf90, /*     DRD1A: *idx3 = *idx2; FN=0 TFD init=31 WS=3 RS=3 */
+	0x9898802d, /*   LCD: idx1 = idx1; idx1 once var0; idx1 += inc5 */
+	0x64000005, /*     DRD2A: EU0=0 EU1=0 EU2=0 EU3=5 INT EXT init=0 WS=0 RS=0 */
+	0x0c0cf849, /*     DRD2B1: *idx0 = EU3(); EU3(idx1,var9)  */
+	0x000001f8, /* NOP */
+
+	/* VAR[9]-VAR[14] */
+	0x40000000,
+	0x7fff7fff,
+	0x00000000,
+	0x00000000,
+	0x00000000,
+	0x00000000,
+
+	/* INC[0]-INC[6] */
+	0x40000000,
+	0xe0000000,
+	0xe0000000,
+	0xa000000c,
+	0x20000000,
+	0x00000000,
+	0x00000000,
+};
+

arch/powerpc/sysdev/bestcomm/bcom_fec_rx_task.c

@@ -0,0 +1,78 @@
+/*
+ * Bestcomm FEC RX task microcode
+ *
+ * Copyright (c) 2004 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Automatically created based on BestCommAPI-2.2/code_dma/image_rtos1/dma_image.hex
+ * on Tue Mar 22 11:19:38 2005 GMT
+ */
+
+#include <asm/types.h>
+
+/*
+ * The header consists of the following fields:
+ *	u32	magic;
+ *	u8	desc_size;
+ *	u8	var_size;
+ *	u8	inc_size;
+ *	u8	first_var;
+ *	u8	reserved[8];
+ *
+ * The size fields contain the number of 32-bit words.
+ */
+
+u32 bcom_fec_rx_task[] = {
+	/* header */
+	0x4243544b,
+	0x18060709,
+	0x00000000,
+	0x00000000,
+
+	/* Task descriptors */
+	0x808220e3, /* LCD: idx0 = var1, idx1 = var4; idx1 <= var3; idx0 += inc4, idx1 += inc3 */
+	0x10601010, /*   DRD1A: var4 = var2; FN=0 MORE init=3 WS=0 RS=0 */
+	0xb8800264, /*   LCD: idx2 = *idx1, idx3 = var0; idx2 < var9; idx2 += inc4, idx3 += inc4 */
+	0x10001308, /*     DRD1A: var4 = idx1; FN=0 MORE init=0 WS=0 RS=0 */
+	0x60140002, /*     DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT init=0 WS=2 RS=2 */
+	0x0cccfcca, /*     DRD2B1: *idx3 = EU3(); EU3(*idx3,var10)  */
+	0x80004000, /*   LCDEXT: idx2 = 0x00000000; ; */
+	0xb8c58029, /*   LCD: idx3 = *(idx1 + var00000015); idx3 once var0; idx3 += inc5 */
+	0x60000002, /*     DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT init=0 WS=0 RS=0 */
+	0x088cf8cc, /*     DRD2B1: idx2 = EU3(); EU3(idx3,var12)  */
+	0x991982f2, /*   LCD: idx2 = idx2, idx3 = idx3; idx2 > var11; idx2 += inc6, idx3 += inc2 */
+	0x006acf80, /*     DRD1A: *idx3 = *idx0; FN=0 init=3 WS=1 RS=1 */
+	0x80004000, /*   LCDEXT: idx2 = 0x00000000; ; */
+	0x9999802d, /*   LCD: idx3 = idx3; idx3 once var0; idx3 += inc5 */
+	0x70000002, /*     DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT MORE init=0 WS=0 RS=0 */
+	0x034cfc4e, /*     DRD2B1: var13 = EU3(); EU3(*idx1,var14)  */
+	0x00008868, /*     DRD1A: idx2 = var13; FN=0 init=0 WS=0 RS=0 */
+	0x99198341, /*   LCD: idx2 = idx2, idx3 = idx3; idx2 > var13; idx2 += inc0, idx3 += inc1 */
+	0x007ecf80, /*     DRD1A: *idx3 = *idx0; FN=0 init=3 WS=3 RS=3 */
+	0x99198272, /*   LCD: idx2 = idx2, idx3 = idx3; idx2 > var9; idx2 += inc6, idx3 += inc2 */
+	0x046acf80, /*     DRD1A: *idx3 = *idx0; FN=0 INT init=3 WS=1 RS=1 */
+	0x9819002d, /*   LCD: idx2 = idx0; idx2 once var0; idx2 += inc5 */
+	0x0060c790, /*     DRD1A: *idx1 = *idx2; FN=0 init=3 WS=0 RS=0 */
+	0x000001f8, /*   NOP */
+
+	/* VAR[9]-VAR[14] */
+	0x40000000,
+	0x7fff7fff,
+	0x00000000,
+	0x00000003,
+	0x40000008,
+	0x43ffffff,
+
+	/* INC[0]-INC[6] */
+	0x40000000,
+	0xe0000000,
+	0xe0000000,
+	0xa0000008,
+	0x20000000,
+	0x00000000,
+	0x4000ffff,
+};
+

arch/powerpc/sysdev/bestcomm/bcom_fec_tx_task.c

@@ -0,0 +1,91 @@
+/*
+ * Bestcomm FEC TX task microcode
+ *
+ * Copyright (c) 2004 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Automatically created based on BestCommAPI-2.2/code_dma/image_rtos1/dma_image.hex
+ * on Tue Mar 22 11:19:29 2005 GMT
+ */
+
+#include <asm/types.h>
+
+/*
+ * The header consists of the following fields:
+ *	u32	magic;
+ *	u8	desc_size;
+ *	u8	var_size;
+ *	u8	inc_size;
+ *	u8	first_var;
+ *	u8	reserved[8];
+ *
+ * The size fields contain the number of 32-bit words.
+ */
+
+u32 bcom_fec_tx_task[] = {
+	/* header */
+	0x4243544b,
+	0x2407070d,
+	0x00000000,
+	0x00000000,
+
+	/* Task descriptors */
+	0x8018001b, /* LCD: idx0 = var0; idx0 <= var0; idx0 += inc3 */
+	0x60000005, /*   DRD2A: EU0=0 EU1=0 EU2=0 EU3=5 EXT init=0 WS=0 RS=0 */
+	0x01ccfc0d, /*   DRD2B1: var7 = EU3(); EU3(*idx0,var13)  */
+	0x8082a123, /* LCD: idx0 = var1, idx1 = var5; idx1 <= var4; idx0 += inc4, idx1 += inc3 */
+	0x10801418, /*   DRD1A: var5 = var3; FN=0 MORE init=4 WS=0 RS=0 */
+	0xf88103a4, /*   LCDEXT: idx2 = *idx1, idx3 = var2; idx2 < var14; idx2 += inc4, idx3 += inc4 */
+	0x801a6024, /*   LCD: idx4 = var0; ; idx4 += inc4 */
+	0x10001708, /*     DRD1A: var5 = idx1; FN=0 MORE init=0 WS=0 RS=0 */
+	0x60140002, /*     DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT init=0 WS=2 RS=2 */
+	0x0cccfccf, /*     DRD2B1: *idx3 = EU3(); EU3(*idx3,var15)  */
+	0x991a002c, /*   LCD: idx2 = idx2, idx3 = idx4; idx2 once var0; idx2 += inc5, idx3 += inc4 */
+	0x70000002, /*     DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT MORE init=0 WS=0 RS=0 */
+	0x024cfc4d, /*     DRD2B1: var9 = EU3(); EU3(*idx1,var13)  */
+	0x60000003, /*     DRD2A: EU0=0 EU1=0 EU2=0 EU3=3 EXT init=0 WS=0 RS=0 */
+	0x0cccf247, /*     DRD2B1: *idx3 = EU3(); EU3(var9,var7)  */
+	0x80004000, /*   LCDEXT: idx2 = 0x00000000; ; */
+	0xb8c80029, /*   LCD: idx3 = *(idx1 + var0000001a); idx3 once var0; idx3 += inc5 */
+	0x70000002, /*     DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT MORE init=0 WS=0 RS=0 */
+	0x088cf8d1, /*     DRD2B1: idx2 = EU3(); EU3(idx3,var17)  */
+	0x00002f10, /*     DRD1A: var11 = idx2; FN=0 init=0 WS=0 RS=0 */
+	0x99198432, /*   LCD: idx2 = idx2, idx3 = idx3; idx2 > var16; idx2 += inc6, idx3 += inc2 */
+	0x008ac398, /*     DRD1A: *idx0 = *idx3; FN=0 init=4 WS=1 RS=1 */
+	0x80004000, /*   LCDEXT: idx2 = 0x00000000; ; */
+	0x9999802d, /*   LCD: idx3 = idx3; idx3 once var0; idx3 += inc5 */
+	0x70000002, /*     DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT MORE init=0 WS=0 RS=0 */
+	0x048cfc53, /*     DRD2B1: var18 = EU3(); EU3(*idx1,var19)  */
+	0x60000008, /*     DRD2A: EU0=0 EU1=0 EU2=0 EU3=8 EXT init=0 WS=0 RS=0 */
+	0x088cf48b, /*     DRD2B1: idx2 = EU3(); EU3(var18,var11)  */
+	0x99198481, /*   LCD: idx2 = idx2, idx3 = idx3; idx2 > var18; idx2 += inc0, idx3 += inc1 */
+	0x009ec398, /*     DRD1A: *idx0 = *idx3; FN=0 init=4 WS=3 RS=3 */
+	0x991983b2, /*   LCD: idx2 = idx2, idx3 = idx3; idx2 > var14; idx2 += inc6, idx3 += inc2 */
+	0x088ac398, /*     DRD1A: *idx0 = *idx3; FN=0 TFD init=4 WS=1 RS=1 */
+	0x9919002d, /*   LCD: idx2 = idx2; idx2 once var0; idx2 += inc5 */
+	0x60000005, /*     DRD2A: EU0=0 EU1=0 EU2=0 EU3=5 EXT init=0 WS=0 RS=0 */
+	0x0c4cf88e, /*     DRD2B1: *idx1 = EU3(); EU3(idx2,var14)  */
+	0x000001f8, /*   NOP */
+
+	/* VAR[13]-VAR[19] */
+	0x0c000000,
+	0x40000000,
+	0x7fff7fff,
+	0x00000000,
+	0x00000003,
+	0x40000004,
+	0x43ffffff,
+
+	/* INC[0]-INC[6] */
+	0x40000000,
+	0xe0000000,
+	0xe0000000,
+	0xa0000008,
+	0x20000000,
+	0x00000000,
+	0x4000ffff,
+};
+

arch/powerpc/sysdev/bestcomm/bcom_gen_bd_rx_task.c

@@ -0,0 +1,63 @@
+/*
+ * Bestcomm GenBD RX task microcode
+ *
+ * Copyright (C) 2006 AppSpec Computer Technologies Corp.
+ *                    Jeff Gibbons <jeff.gibbons@appspec.com>
+ * Copyright (c) 2004 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Based on BestCommAPI-2.2/code_dma/image_rtos1/dma_image.hex
+ * on Tue Mar 4 10:14:12 2006 GMT
+ *
+ */
+
+#include <asm/types.h>
+
+/*
+ * The header consists of the following fields:
+ *	u32	magic;
+ *	u8	desc_size;
+ *	u8	var_size;
+ *	u8	inc_size;
+ *	u8	first_var;
+ *	u8	reserved[8];
+ *
+ * The size fields contain the number of 32-bit words.
+ */
+
+u32 bcom_gen_bd_rx_task[] = {
+	/* header */
+	0x4243544b,
+	0x0d020409,
+	0x00000000,
+	0x00000000,
+
+	/* Task descriptors */
+	0x808220da, /* LCD: idx0 = var1, idx1 = var4; idx1 <= var3; idx0 += inc3, idx1 += inc2 */
+	0x13e01010, /*   DRD1A: var4 = var2; FN=0 MORE init=31 WS=0 RS=0 */
+	0xb880025b, /*   LCD: idx2 = *idx1, idx3 = var0; idx2 < var9; idx2 += inc3, idx3 += inc3 */
+	0x10001308, /*     DRD1A: var4 = idx1; FN=0 MORE init=0 WS=0 RS=0 */
+	0x60140002, /*     DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT init=0 WS=2 RS=2 */
+	0x0cccfcca, /*     DRD2B1: *idx3 = EU3(); EU3(*idx3,var10)  */
+	0xd9190240, /*   LCDEXT: idx2 = idx2; idx2 > var9; idx2 += inc0 */
+	0xb8c5e009, /*   LCD: idx3 = *(idx1 + var00000015); ; idx3 += inc1 */
+	0x07fecf80, /*     DRD1A: *idx3 = *idx0; FN=0 INT init=31 WS=3 RS=3 */
+	0x99190024, /*   LCD: idx2 = idx2; idx2 once var0; idx2 += inc4 */
+	0x60000005, /*     DRD2A: EU0=0 EU1=0 EU2=0 EU3=5 EXT init=0 WS=0 RS=0 */
+	0x0c4cf889, /*     DRD2B1: *idx1 = EU3(); EU3(idx2,var9)  */
+	0x000001f8, /*   NOP */
+
+	/* VAR[9]-VAR[10] */
+	0x40000000,
+	0x7fff7fff,
+
+	/* INC[0]-INC[3] */
+	0x40000000,
+	0xe0000000,
+	0xa0000008,
+	0x20000000,
+};
+

arch/powerpc/sysdev/bestcomm/bcom_gen_bd_tx_task.c

@@ -0,0 +1,69 @@
+/*
+ * Bestcomm GenBD TX task microcode
+ *
+ * Copyright (C) 2006 AppSpec Computer Technologies Corp.
+ *                    Jeff Gibbons <jeff.gibbons@appspec.com>
+ * Copyright (c) 2004 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Based on BestCommAPI-2.2/code_dma/image_rtos1/dma_image.hex
+ * on Tue Mar 4 10:14:12 2006 GMT
+ *
+ */
+
+#include <asm/types.h>
+
+/*
+ * The header consists of the following fields:
+ *	u32	magic;
+ *	u8	desc_size;
+ *	u8	var_size;
+ *	u8	inc_size;
+ *	u8	first_var;
+ *	u8	reserved[8];
+ *
+ * The size fields contain the number of 32-bit words.
+ */
+
+u32 bcom_gen_bd_tx_task[] = {
+	/* header */
+	0x4243544b,
+	0x0f040609,
+	0x00000000,
+	0x00000000,
+
+	/* Task descriptors */
+	0x800220e3, /* LCD: idx0 = var0, idx1 = var4; idx1 <= var3; idx0 += inc4, idx1 += inc3 */
+	0x13e01010, /*   DRD1A: var4 = var2; FN=0 MORE init=31 WS=0 RS=0 */
+	0xb8808264, /*   LCD: idx2 = *idx1, idx3 = var1; idx2 < var9; idx2 += inc4, idx3 += inc4 */
+	0x10001308, /*     DRD1A: var4 = idx1; FN=0 MORE init=0 WS=0 RS=0 */
+	0x60140002, /*     DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT init=0 WS=2 RS=2 */
+	0x0cccfcca, /*     DRD2B1: *idx3 = EU3(); EU3(*idx3,var10)  */
+	0xd9190300, /*   LCDEXT: idx2 = idx2; idx2 > var12; idx2 += inc0 */
+	0xb8c5e009, /*   LCD: idx3 = *(idx1 + var00000015); ; idx3 += inc1 */
+	0x03fec398, /*     DRD1A: *idx0 = *idx3; FN=0 init=31 WS=3 RS=3 */
+	0x9919826a, /*   LCD: idx2 = idx2, idx3 = idx3; idx2 > var9; idx2 += inc5, idx3 += inc2 */
+	0x0feac398, /*     DRD1A: *idx0 = *idx3; FN=0 TFD INT init=31 WS=1 RS=1 */
+	0x99190036, /*   LCD: idx2 = idx2; idx2 once var0; idx2 += inc6 */
+	0x60000005, /*     DRD2A: EU0=0 EU1=0 EU2=0 EU3=5 EXT init=0 WS=0 RS=0 */
+	0x0c4cf889, /*     DRD2B1: *idx1 = EU3(); EU3(idx2,var9)  */
+	0x000001f8, /*   NOP */
+
+	/* VAR[9]-VAR[12] */
+	0x40000000,
+	0x7fff7fff,
+	0x00000000,
+	0x40000004,
+
+	/* INC[0]-INC[5] */
+	0x40000000,
+	0xe0000000,
+	0xe0000000,
+	0xa0000008,
+	0x20000000,
+	0x4000ffff,
+};
+

arch/powerpc/sysdev/bestcomm/bestcomm.c

@@ -0,0 +1,528 @@
+/*
+ * Driver for MPC52xx processor BestComm peripheral controller
+ *
+ *
+ * Copyright (C) 2006-2007 Sylvain Munaut <tnt@246tNt.com>
+ * Copyright (C) 2005      Varma Electronics Oy,
+ *                         ( by Andrey Volkov <avolkov@varma-el.com> )
+ * Copyright (C) 2003-2004 MontaVista, Software, Inc.
+ *                         ( by Dale Farnsworth <dfarnsworth@mvista.com> )
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/mpc52xx.h>
+
+#include "sram.h"
+#include "bestcomm_priv.h"
+#include "bestcomm.h"
+
+#define DRIVER_NAME "bestcomm-core"
+
+
+struct bcom_engine *bcom_eng = NULL;
+EXPORT_SYMBOL_GPL(bcom_eng);	/* needed for inline functions */
+
+
+/* ======================================================================== */
+/* Public and private API                                                   */
+/* ======================================================================== */
+
+/* Private API */
+
+struct bcom_task *
+bcom_task_alloc(int bd_count, int bd_size, int priv_size)
+{
+	int i, tasknum = -1;
+	struct bcom_task *tsk;
+
+	/* Get and reserve a task num */
+	spin_lock(&bcom_eng->lock);
+
+	for (i=0; i<BCOM_MAX_TASKS; i++)
+		if (!bcom_eng->tdt[i].stop) {	/* we use stop as a marker */
+			bcom_eng->tdt[i].stop = 0xfffffffful; /* dummy addr */
+			tasknum = i;
+			break;
+		}
+
+	spin_unlock(&bcom_eng->lock);
+
+	if (tasknum < 0)
+		return NULL;
+
+	/* Allocate our structure */
+	tsk = kzalloc(sizeof(struct bcom_task) + priv_size, GFP_KERNEL);
+	if (!tsk)
+		goto error;
+
+	tsk->tasknum = tasknum;
+	if (priv_size)
+		tsk->priv = (void*)tsk + sizeof(struct bcom_task);
+
+	/* Get IRQ of that task */
+	tsk->irq = irq_of_parse_and_map(bcom_eng->ofnode, tsk->tasknum);
+	if (tsk->irq == NO_IRQ)
+		goto error;
+
+	/* Init the BDs, if needed */
+	if (bd_count) {
+		tsk->cookie = kmalloc(sizeof(void*) * bd_count, GFP_KERNEL);
+		if (!tsk->cookie)
+			goto error;
+
+		tsk->bd = bcom_sram_alloc(bd_count * bd_size, 4, &tsk->bd_pa);
+		if (!tsk->bd)
+			goto error;
+		memset(tsk->bd, 0x00, bd_count * bd_size);
+
+		tsk->num_bd = bd_count;
+		tsk->bd_size = bd_size;
+	}
+
+	return tsk;
+
+error:
+	if (tsk) {
+		if (tsk->irq != NO_IRQ)
+			irq_dispose_mapping(tsk->irq);
+		bcom_sram_free(tsk->bd);
+		kfree(tsk->cookie);
+		kfree(tsk);
+	}
+
+	bcom_eng->tdt[tasknum].stop = 0;
+
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(bcom_task_alloc);
+
+void
+bcom_task_free(struct bcom_task *tsk)
+{
+	/* Stop the task */
+	bcom_disable_task(tsk->tasknum);
+
+	/* Clear TDT */
+	bcom_eng->tdt[tsk->tasknum].start = 0;
+	bcom_eng->tdt[tsk->tasknum].stop  = 0;
+
+	/* Free everything */
+	irq_dispose_mapping(tsk->irq);
+	bcom_sram_free(tsk->bd);
+	kfree(tsk->cookie);
+	kfree(tsk);
+}
+EXPORT_SYMBOL_GPL(bcom_task_free);
+
+int
+bcom_load_image(int task, u32 *task_image)
+{
+	struct bcom_task_header *hdr = (struct bcom_task_header *)task_image;
+	struct bcom_tdt *tdt;
+	u32 *desc, *var, *inc;
+	u32 *desc_src, *var_src, *inc_src;
+
+	/* Safety checks */
+	if (hdr->magic != BCOM_TASK_MAGIC) {
+		printk(KERN_ERR DRIVER_NAME
+			": Trying to load invalid microcode\n");
+		return -EINVAL;
+	}
+
+	if ((task < 0) || (task >= BCOM_MAX_TASKS)) {
+		printk(KERN_ERR DRIVER_NAME
+			": Trying to load invalid task %d\n", task);
+		return -EINVAL;
+	}
+
+	/* Initial load or reload */
+	tdt = &bcom_eng->tdt[task];
+
+	if (tdt->start) {
+		desc = bcom_task_desc(task);
+		if (hdr->desc_size != bcom_task_num_descs(task)) {
+			printk(KERN_ERR DRIVER_NAME
+				": Trying to reload wrong task image "
+				"(%d size %d/%d)!\n",
+				task,
+				hdr->desc_size,
+				bcom_task_num_descs(task));
+			return -EINVAL;
+		}
+	} else {
+		phys_addr_t start_pa;
+
+		desc = bcom_sram_alloc(hdr->desc_size * sizeof(u32), 4, &start_pa);
+		if (!desc)
+			return -ENOMEM;
+
+		tdt->start = start_pa;
+		tdt->stop = start_pa + ((hdr->desc_size-1) * sizeof(u32));
+	}
+
+	var = bcom_task_var(task);
+	inc = bcom_task_inc(task);
+
+	/* Clear & copy */
+	memset(var, 0x00, BCOM_VAR_SIZE);
+	memset(inc, 0x00, BCOM_INC_SIZE);
+
+	desc_src = (u32 *)(hdr + 1);
+	var_src = desc_src + hdr->desc_size;
+	inc_src = var_src + hdr->var_size;
+
+	memcpy(desc, desc_src, hdr->desc_size * sizeof(u32));
+	memcpy(var + hdr->first_var, var_src, hdr->var_size * sizeof(u32));
+	memcpy(inc, inc_src, hdr->inc_size * sizeof(u32));
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(bcom_load_image);
+
+void
+bcom_set_initiator(int task, int initiator)
+{
+	int i;
+	int num_descs;
+	u32 *desc;
+	int next_drd_has_initiator;
+
+	bcom_set_tcr_initiator(task, initiator);
+
+	/* Just setting tcr is apparently not enough due to some problem */
+	/* with it. So we just go thru all the microcode and replace in  */
+	/* the DRD directly */
+
+	desc = bcom_task_desc(task);
+	next_drd_has_initiator = 1;
+	num_descs = bcom_task_num_descs(task);
+
+	for (i=0; i<num_descs; i++, desc++) {
+		if (!bcom_desc_is_drd(*desc))
+			continue;
+		if (next_drd_has_initiator)
+			if (bcom_desc_initiator(*desc) != BCOM_INITIATOR_ALWAYS)
+				bcom_set_desc_initiator(desc, initiator);
+		next_drd_has_initiator = !bcom_drd_is_extended(*desc);
+	}
+}
+EXPORT_SYMBOL_GPL(bcom_set_initiator);
+
+
+/* Public API */
+
+void
+bcom_enable(struct bcom_task *tsk)
+{
+	bcom_enable_task(tsk->tasknum);
+}
+EXPORT_SYMBOL_GPL(bcom_enable);
+
+void
+bcom_disable(struct bcom_task *tsk)
+{
+	bcom_disable_task(tsk->tasknum);
+}
+EXPORT_SYMBOL_GPL(bcom_disable);
+
+
+/* ======================================================================== */
+/* Engine init/cleanup                                                      */
+/* ======================================================================== */
+
+/* Function Descriptor table */
+/* this will need to be updated if Freescale changes their task code FDT */
+static u32 fdt_ops[] = {
+	0xa0045670,	/* FDT[48] - load_acc()	  */
+	0x80045670,	/* FDT[49] - unload_acc() */
+	0x21800000,	/* FDT[50] - and()        */
+	0x21e00000,	/* FDT[51] - or()         */
+	0x21500000,	/* FDT[52] - xor()        */
+	0x21400000,	/* FDT[53] - andn()       */
+	0x21500000,	/* FDT[54] - not()        */
+	0x20400000,	/* FDT[55] - add()        */
+	0x20500000,	/* FDT[56] - sub()        */
+	0x20800000,	/* FDT[57] - lsh()        */
+	0x20a00000,	/* FDT[58] - rsh()        */
+	0xc0170000,	/* FDT[59] - crc8()       */
+	0xc0145670,	/* FDT[60] - crc16()      */
+	0xc0345670,	/* FDT[61] - crc32()      */
+	0xa0076540,	/* FDT[62] - endian32()   */
+	0xa0000760,	/* FDT[63] - endian16()   */
+};
+
+
+static int __devinit
+bcom_engine_init(void)
+{
+	int task;
+	phys_addr_t tdt_pa, ctx_pa, var_pa, fdt_pa;
+	unsigned int tdt_size, ctx_size, var_size, fdt_size;
+
+	/* Allocate & clear SRAM zones for FDT, TDTs, contexts and vars/incs */
+	tdt_size = BCOM_MAX_TASKS * sizeof(struct bcom_tdt);
+	ctx_size = BCOM_MAX_TASKS * BCOM_CTX_SIZE;
+	var_size = BCOM_MAX_TASKS * (BCOM_VAR_SIZE + BCOM_INC_SIZE);
+	fdt_size = BCOM_FDT_SIZE;
+
+	bcom_eng->tdt = bcom_sram_alloc(tdt_size, sizeof(u32), &tdt_pa);
+	bcom_eng->ctx = bcom_sram_alloc(ctx_size, BCOM_CTX_ALIGN, &ctx_pa);
+	bcom_eng->var = bcom_sram_alloc(var_size, BCOM_VAR_ALIGN, &var_pa);
+	bcom_eng->fdt = bcom_sram_alloc(fdt_size, BCOM_FDT_ALIGN, &fdt_pa);
+
+	if (!bcom_eng->tdt || !bcom_eng->ctx || !bcom_eng->var || !bcom_eng->fdt) {
+		printk(KERN_ERR "DMA: SRAM alloc failed in engine init !\n");
+
+		bcom_sram_free(bcom_eng->tdt);
+		bcom_sram_free(bcom_eng->ctx);
+		bcom_sram_free(bcom_eng->var);
+		bcom_sram_free(bcom_eng->fdt);
+
+		return -ENOMEM;
+	}
+
+	memset(bcom_eng->tdt, 0x00, tdt_size);
+	memset(bcom_eng->ctx, 0x00, ctx_size);
+	memset(bcom_eng->var, 0x00, var_size);
+	memset(bcom_eng->fdt, 0x00, fdt_size);
+
+	/* Copy the FDT for the EU#3 */
+	memcpy(&bcom_eng->fdt[48], fdt_ops, sizeof(fdt_ops));
+
+	/* Initialize Task base structure */
+	for (task=0; task<BCOM_MAX_TASKS; task++)
+	{
+		out_be16(&bcom_eng->regs->tcr[task], 0);
+		out_8(&bcom_eng->regs->ipr[task], 0);
+
+		bcom_eng->tdt[task].context	= ctx_pa;
+		bcom_eng->tdt[task].var	= var_pa;
+		bcom_eng->tdt[task].fdt	= fdt_pa;
+
+		var_pa += BCOM_VAR_SIZE + BCOM_INC_SIZE;
+		ctx_pa += BCOM_CTX_SIZE;
+	}
+
+	out_be32(&bcom_eng->regs->taskBar, tdt_pa);
+
+	/* Init 'always' initiator */
+	out_8(&bcom_eng->regs->ipr[BCOM_INITIATOR_ALWAYS], BCOM_IPR_ALWAYS);
+
+	/* Disable COMM Bus Prefetch, apparently it's not reliable yet */
+	/* FIXME: This should be done on 5200 and not 5200B ... */
+	out_be16(&bcom_eng->regs->PtdCntrl, in_be16(&bcom_eng->regs->PtdCntrl) | 1);
+
+	/* Init lock */
+	spin_lock_init(&bcom_eng->lock);
+
+	return 0;
+}
+
+static void
+bcom_engine_cleanup(void)
+{
+	int task;
+
+	/* Stop all tasks */
+	for (task=0; task<BCOM_MAX_TASKS; task++)
+	{
+		out_be16(&bcom_eng->regs->tcr[task], 0);
+		out_8(&bcom_eng->regs->ipr[task], 0);
+	}
+
+	out_be32(&bcom_eng->regs->taskBar, 0ul);
+
+	/* Release the SRAM zones */
+	bcom_sram_free(bcom_eng->tdt);
+	bcom_sram_free(bcom_eng->ctx);
+	bcom_sram_free(bcom_eng->var);
+	bcom_sram_free(bcom_eng->fdt);
+}
+
+
+/* ======================================================================== */
+/* OF platform driver                                                       */
+/* ======================================================================== */
+
+static int __devinit
+mpc52xx_bcom_probe(struct of_device *op, const struct of_device_id *match)
+{
+	struct device_node *ofn_sram;
+	struct resource res_bcom;
+
+	int rv;
+
+	/* Inform user we're ok so far */
+	printk(KERN_INFO "DMA: MPC52xx BestComm driver\n");
+
+	/* Get the bestcomm node */
+	of_node_get(op->node);
+
+	/* Prepare SRAM */
+	ofn_sram = of_find_compatible_node(NULL, "sram", "mpc5200-sram");
+	if (!ofn_sram) {
+		printk(KERN_ERR DRIVER_NAME ": "
+			"No SRAM found in device tree\n");
+		rv = -ENODEV;
+		goto error_ofput;
+	}
+	rv = bcom_sram_init(ofn_sram, DRIVER_NAME);
+	of_node_put(ofn_sram);
+
+	if (rv) {
+		printk(KERN_ERR DRIVER_NAME ": "
+			"Error in SRAM init\n");
+		goto error_ofput;
+	}
+
+	/* Get a clean struct */
+	bcom_eng = kzalloc(sizeof(struct bcom_engine), GFP_KERNEL);
+	if (!bcom_eng) {
+		printk(KERN_ERR DRIVER_NAME ": "
+			"Can't allocate state structure\n");
+		rv = -ENOMEM;
+		goto error_sramclean;
+	}
+
+	/* Save the node */
+	bcom_eng->ofnode = op->node;
+
+	/* Get, reserve & map io */
+	if (of_address_to_resource(op->node, 0, &res_bcom)) {
+		printk(KERN_ERR DRIVER_NAME ": "
+			"Can't get resource\n");
+		rv = -EINVAL;
+		goto error_sramclean;
+	}
+
+	if (!request_mem_region(res_bcom.start, sizeof(struct mpc52xx_sdma),
+				DRIVER_NAME)) {
+		printk(KERN_ERR DRIVER_NAME ": "
+			"Can't request registers region\n");
+		rv = -EBUSY;
+		goto error_sramclean;
+	}
+
+	bcom_eng->regs_base = res_bcom.start;
+	bcom_eng->regs = ioremap(res_bcom.start, sizeof(struct mpc52xx_sdma));
+	if (!bcom_eng->regs) {
+		printk(KERN_ERR DRIVER_NAME ": "
+			"Can't map registers\n");
+		rv = -ENOMEM;
+		goto error_release;
+	}
+
+	/* Now, do the real init */
+	rv = bcom_engine_init();
+	if (rv)
+		goto error_unmap;
+
+	/* Done ! */
+	printk(KERN_INFO "DMA: MPC52xx BestComm engine @%08lx ok !\n",
+		bcom_eng->regs_base);
+
+	return 0;
+
+	/* Error path */
+error_unmap:
+	iounmap(bcom_eng->regs);
+error_release:
+	release_mem_region(res_bcom.start, sizeof(struct mpc52xx_sdma));
+error_sramclean:
+	kfree(bcom_eng);
+	bcom_sram_cleanup();
+error_ofput:
+	of_node_put(op->node);
+
+	printk(KERN_ERR "DMA: MPC52xx BestComm init failed !\n");
+
+	return rv;
+}
+
+
+static int
+mpc52xx_bcom_remove(struct of_device *op)
+{
+	/* Clean up the engine */
+	bcom_engine_cleanup();
+
+	/* Cleanup SRAM */
+	bcom_sram_cleanup();
+
+	/* Release regs */
+	iounmap(bcom_eng->regs);
+	release_mem_region(bcom_eng->regs_base, sizeof(struct mpc52xx_sdma));
+
+	/* Release the node */
+	of_node_put(bcom_eng->ofnode);
+
+	/* Release memory */
+	kfree(bcom_eng);
+	bcom_eng = NULL;
+
+	return 0;
+}
+
+static struct of_device_id mpc52xx_bcom_of_match[] = {
+	{
+		.type		= "dma-controller",
+		.compatible	= "mpc5200-bestcomm",
+	},
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, mpc52xx_bcom_of_match);
+
+
+static struct of_platform_driver mpc52xx_bcom_of_platform_driver = {
+	.owner		= THIS_MODULE,
+	.name		= DRIVER_NAME,
+	.match_table	= mpc52xx_bcom_of_match,
+	.probe		= mpc52xx_bcom_probe,
+	.remove		= mpc52xx_bcom_remove,
+	.driver		= {
+		.name	= DRIVER_NAME,
+		.owner	= THIS_MODULE,
+	},
+};
+
+
+/* ======================================================================== */
+/* Module                                                                   */
+/* ======================================================================== */
+
+static int __init
+mpc52xx_bcom_init(void)
+{
+	return of_register_platform_driver(&mpc52xx_bcom_of_platform_driver);
+}
+
+static void __exit
+mpc52xx_bcom_exit(void)
+{
+	of_unregister_platform_driver(&mpc52xx_bcom_of_platform_driver);
+}
+
+/* If we're not a module, we must make sure everything is setup before  */
+/* anyone tries to use us ... that's why we use subsys_initcall instead */
+/* of module_init. */
+subsys_initcall(mpc52xx_bcom_init);
+module_exit(mpc52xx_bcom_exit);
+
+MODULE_DESCRIPTION("Freescale MPC52xx BestComm DMA");
+MODULE_AUTHOR("Sylvain Munaut <tnt@246tNt.com>");
+MODULE_AUTHOR("Andrey Volkov <avolkov@varma-el.com>");
+MODULE_AUTHOR("Dale Farnsworth <dfarnsworth@mvista.com>");
+MODULE_LICENSE("GPL v2");
+

arch/powerpc/sysdev/bestcomm/bestcomm.h

@@ -0,0 +1,190 @@
+/*
+ * Public header for the MPC52xx processor BestComm driver
+ *
+ *
+ * Copyright (C) 2006      Sylvain Munaut <tnt@246tNt.com>
+ * Copyright (C) 2005      Varma Electronics Oy,
+ *                         ( by Andrey Volkov <avolkov@varma-el.com> )
+ * Copyright (C) 2003-2004 MontaVista, Software, Inc.
+ *                         ( by Dale Farnsworth <dfarnsworth@mvista.com> )
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#ifndef __BESTCOMM_H__
+#define __BESTCOMM_H__
+
+struct bcom_bd; /* defined later on ... */
+
+
+/* ======================================================================== */
+/* Generic task managment                                                   */
+/* ======================================================================== */
+
+/**
+ * struct bcom_task - Structure describing a loaded BestComm task
+ *
+ * This structure is never built by the driver it self. It's built and
+ * filled the intermediate layer of the BestComm API, the task dependent
+ * support code.
+ *
+ * Most likely you don't need to poke around inside this structure. The
+ * fields are exposed in the header just for the sake of inline functions
+ */
+struct bcom_task {
+	unsigned int	tasknum;
+	unsigned int	flags;
+	int		irq;
+
+	struct bcom_bd	*bd;
+	phys_addr_t	bd_pa;
+	void		**cookie;
+	unsigned short	index;
+	unsigned short	outdex;
+	unsigned int	num_bd;
+	unsigned int	bd_size;
+
+	void*		priv;
+};
+
+#define BCOM_FLAGS_NONE         0x00000000ul
+#define BCOM_FLAGS_ENABLE_TASK  (1ul <<  0)
+
+/**
+ * bcom_enable - Enable a BestComm task
+ * @tsk: The BestComm task structure
+ *
+ * This function makes sure the given task is enabled and can be run
+ * by the BestComm engine as needed
+ */
+extern void bcom_enable(struct bcom_task *tsk);
+
+/**
+ * bcom_disable - Disable a BestComm task
+ * @tsk: The BestComm task structure
+ *
+ * This function disable a given task, making sure it's not executed
+ * by the BestComm engine.
+ */
+extern void bcom_disable(struct bcom_task *tsk);
+
+
+/**
+ * bcom_get_task_irq - Returns the irq number of a BestComm task
+ * @tsk: The BestComm task structure
+ */
+static inline int
+bcom_get_task_irq(struct bcom_task *tsk) {
+	return tsk->irq;
+}
+
+/* ======================================================================== */
+/* BD based tasks helpers                                                   */
+/* ======================================================================== */
+
+/**
+ * struct bcom_bd - Structure describing a generic BestComm buffer descriptor
+ * @status: The current status of this buffer. Exact meaning depends on the
+ *          task type
+ * @data: An array of u32 whose meaning depends on the task type.
+ */
+struct bcom_bd {
+	u32	status;
+	u32	data[1];	/* variable, but at least 1 */
+};
+
+#define BCOM_BD_READY	0x40000000ul
+
+/** _bcom_next_index - Get next input index.
+ * @tsk: pointer to task structure
+ *
+ * Support function; Device drivers should not call this
+ */
+static inline int
+_bcom_next_index(struct bcom_task *tsk)
+{
+	return ((tsk->index + 1) == tsk->num_bd) ? 0 : tsk->index + 1;
+}
+
+/** _bcom_next_outdex - Get next output index.
+ * @tsk: pointer to task structure
+ *
+ * Support function; Device drivers should not call this
+ */
+static inline int
+_bcom_next_outdex(struct bcom_task *tsk)
+{
+	return ((tsk->outdex + 1) == tsk->num_bd) ? 0 : tsk->outdex + 1;
+}
+
+/**
+ * bcom_queue_empty - Checks if a BestComm task BD queue is empty
+ * @tsk: The BestComm task structure
+ */
+static inline int
+bcom_queue_empty(struct bcom_task *tsk)
+{
+	return tsk->index == tsk->outdex;
+}
+
+/**
+ * bcom_queue_full - Checks if a BestComm task BD queue is full
+ * @tsk: The BestComm task structure
+ */
+static inline int
+bcom_queue_full(struct bcom_task *tsk)
+{
+	return tsk->outdex == _bcom_next_index(tsk);
+}
+
+/**
+ * bcom_buffer_done - Checks if a BestComm 
+ * @tsk: The BestComm task structure
+ */
+static inline int
+bcom_buffer_done(struct bcom_task *tsk)
+{
+	if (bcom_queue_empty(tsk))
+		return 0;
+	return !(tsk->bd[tsk->outdex].status & BCOM_BD_READY);
+}
+
+/**
+ * bcom_prepare_next_buffer - clear status of next available buffer.
+ * @tsk: The BestComm task structure
+ *
+ * Returns pointer to next buffer descriptor
+ */
+static inline struct bcom_bd *
+bcom_prepare_next_buffer(struct bcom_task *tsk)
+{
+	tsk->bd[tsk->index].status = 0;	/* cleanup last status */
+	return &tsk->bd[tsk->index];
+}
+
+static inline void
+bcom_submit_next_buffer(struct bcom_task *tsk, void *cookie)
+{
+	tsk->cookie[tsk->index] = cookie;
+	mb();	/* ensure the bd is really up-to-date */
+	tsk->bd[tsk->index].status |= BCOM_BD_READY;
+	tsk->index = _bcom_next_index(tsk);
+	if (tsk->flags & BCOM_FLAGS_ENABLE_TASK)
+		bcom_enable(tsk);
+}
+
+static inline void *
+bcom_retrieve_buffer(struct bcom_task *tsk, u32 *p_status, struct bcom_bd **p_bd)
+{
+	void *cookie = tsk->cookie[tsk->outdex];
+	if (p_status)
+		*p_status = tsk->bd[tsk->outdex].status;
+	if (p_bd)
+		*p_bd = &tsk->bd[tsk->outdex];
+	tsk->outdex = _bcom_next_outdex(tsk);
+	return cookie;
+}
+
+#endif /* __BESTCOMM_H__ */

arch/powerpc/sysdev/bestcomm/bestcomm_priv.h

@@ -0,0 +1,334 @@
+/*
+ * Private header for the MPC52xx processor BestComm driver
+ *
+ * By private, we mean that driver should not use it directly. It's meant
+ * to be used by the BestComm engine driver itself and by the intermediate
+ * layer between the core and the drivers.
+ *
+ * Copyright (C) 2006      Sylvain Munaut <tnt@246tNt.com>
+ * Copyright (C) 2005      Varma Electronics Oy,
+ *                         ( by Andrey Volkov <avolkov@varma-el.com> )
+ * Copyright (C) 2003-2004 MontaVista, Software, Inc.
+ *                         ( by Dale Farnsworth <dfarnsworth@mvista.com> )
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#ifndef __BESTCOMM_PRIV_H__
+#define __BESTCOMM_PRIV_H__
+
+#include <linux/spinlock.h>
+#include <linux/of.h>
+#include <asm/io.h>
+#include <asm/mpc52xx.h>
+
+#include "sram.h"
+
+
+/* ======================================================================== */
+/* Engine related stuff                                                     */
+/* ======================================================================== */
+
+/* Zones sizes and needed alignments */
+#define BCOM_MAX_TASKS		16
+#define BCOM_MAX_VAR		24
+#define BCOM_MAX_INC		8
+#define BCOM_MAX_FDT		64
+#define BCOM_MAX_CTX		20
+#define BCOM_CTX_SIZE		(BCOM_MAX_CTX * sizeof(u32))
+#define BCOM_CTX_ALIGN		0x100
+#define BCOM_VAR_SIZE		(BCOM_MAX_VAR * sizeof(u32))
+#define BCOM_INC_SIZE		(BCOM_MAX_INC * sizeof(u32))
+#define BCOM_VAR_ALIGN		0x80
+#define BCOM_FDT_SIZE		(BCOM_MAX_FDT * sizeof(u32))
+#define BCOM_FDT_ALIGN		0x100
+
+/**
+ * struct bcom_tdt - Task Descriptor Table Entry
+ *
+ */
+struct bcom_tdt {
+	u32 start;
+	u32 stop;
+	u32 var;
+	u32 fdt;
+	u32 exec_status;	/* used internally by BestComm engine */
+	u32 mvtp;		/* used internally by BestComm engine */
+	u32 context;
+	u32 litbase;
+};
+
+/**
+ * struct bcom_engine
+ *
+ * This holds all info needed globaly to handle the engine
+ */
+struct bcom_engine {
+	struct device_node		*ofnode;
+	struct mpc52xx_sdma __iomem     *regs;
+	phys_addr_t                      regs_base;
+
+	struct bcom_tdt			*tdt;
+	u32				*ctx;
+	u32				*var;
+	u32				*fdt;
+
+	spinlock_t			lock;
+};
+
+extern struct bcom_engine *bcom_eng;
+
+
+/* ======================================================================== */
+/* Tasks related stuff                                                      */
+/* ======================================================================== */
+
+/* Tasks image header */
+#define BCOM_TASK_MAGIC		0x4243544B	/* 'BCTK' */
+
+struct bcom_task_header {
+	u32	magic;
+	u8	desc_size;	/* the size fields     */
+	u8	var_size;	/* are given in number */
+	u8	inc_size;	/* of 32-bits words    */
+	u8	first_var;
+	u8	reserved[8];
+};
+
+/* Descriptors stucture & co */
+#define BCOM_DESC_NOP		0x000001f8
+#define BCOM_LCD_MASK		0x80000000
+#define BCOM_DRD_EXTENDED	0x40000000
+#define BCOM_DRD_INITIATOR_SHIFT	21
+
+/* Tasks pragma */
+#define BCOM_PRAGMA_BIT_RSV		7	/* reserved pragma bit */
+#define BCOM_PRAGMA_BIT_PRECISE_INC	6	/* increment 0=when possible, */
+						/*           1=iter end */
+#define BCOM_PRAGMA_BIT_RST_ERROR_NO	5	/* don't reset errors on */
+						/* task enable */
+#define BCOM_PRAGMA_BIT_PACK		4	/* pack data enable */
+#define BCOM_PRAGMA_BIT_INTEGER		3	/* data alignment */
+						/* 0=frac(msb), 1=int(lsb) */
+#define BCOM_PRAGMA_BIT_SPECREAD	2	/* XLB speculative read */
+#define BCOM_PRAGMA_BIT_CW		1	/* write line buffer enable */
+#define BCOM_PRAGMA_BIT_RL		0	/* read line buffer enable */
+
+	/* Looks like XLB speculative read generates XLB errors when a buffer
+	 * is at the end of the physical memory. i.e. when accessing the
+	 * lasts words, the engine tries to prefetch the next but there is no
+	 * next ...
+	 */
+#define BCOM_STD_PRAGMA		((0 << BCOM_PRAGMA_BIT_RSV)		| \
+				 (0 << BCOM_PRAGMA_BIT_PRECISE_INC)	| \
+				 (0 << BCOM_PRAGMA_BIT_RST_ERROR_NO)	| \
+				 (0 << BCOM_PRAGMA_BIT_PACK)		| \
+				 (0 << BCOM_PRAGMA_BIT_INTEGER)		| \
+				 (0 << BCOM_PRAGMA_BIT_SPECREAD)	| \
+				 (1 << BCOM_PRAGMA_BIT_CW)		| \
+				 (1 << BCOM_PRAGMA_BIT_RL))
+
+#define BCOM_PCI_PRAGMA		((0 << BCOM_PRAGMA_BIT_RSV)		| \
+				 (0 << BCOM_PRAGMA_BIT_PRECISE_INC)	| \
+				 (0 << BCOM_PRAGMA_BIT_RST_ERROR_NO)	| \
+				 (0 << BCOM_PRAGMA_BIT_PACK)		| \
+				 (1 << BCOM_PRAGMA_BIT_INTEGER)		| \
+				 (0 << BCOM_PRAGMA_BIT_SPECREAD)	| \
+				 (1 << BCOM_PRAGMA_BIT_CW)		| \
+				 (1 << BCOM_PRAGMA_BIT_RL))
+
+#define BCOM_ATA_PRAGMA		BCOM_STD_PRAGMA
+#define BCOM_CRC16_DP_0_PRAGMA	BCOM_STD_PRAGMA
+#define BCOM_CRC16_DP_1_PRAGMA	BCOM_STD_PRAGMA
+#define BCOM_FEC_RX_BD_PRAGMA	BCOM_STD_PRAGMA
+#define BCOM_FEC_TX_BD_PRAGMA	BCOM_STD_PRAGMA
+#define BCOM_GEN_DP_0_PRAGMA	BCOM_STD_PRAGMA
+#define BCOM_GEN_DP_1_PRAGMA	BCOM_STD_PRAGMA
+#define BCOM_GEN_DP_2_PRAGMA	BCOM_STD_PRAGMA
+#define BCOM_GEN_DP_3_PRAGMA	BCOM_STD_PRAGMA
+#define BCOM_GEN_DP_BD_0_PRAGMA	BCOM_STD_PRAGMA
+#define BCOM_GEN_DP_BD_1_PRAGMA	BCOM_STD_PRAGMA
+#define BCOM_GEN_RX_BD_PRAGMA	BCOM_STD_PRAGMA
+#define BCOM_GEN_TX_BD_PRAGMA	BCOM_STD_PRAGMA
+#define BCOM_GEN_LPC_PRAGMA	BCOM_STD_PRAGMA
+#define BCOM_PCI_RX_PRAGMA	BCOM_PCI_PRAGMA
+#define BCOM_PCI_TX_PRAGMA	BCOM_PCI_PRAGMA
+
+/* Initiators number */
+#define BCOM_INITIATOR_ALWAYS	 0
+#define BCOM_INITIATOR_SCTMR_0	 1
+#define BCOM_INITIATOR_SCTMR_1	 2
+#define BCOM_INITIATOR_FEC_RX	 3
+#define BCOM_INITIATOR_FEC_TX	 4
+#define BCOM_INITIATOR_ATA_RX	 5
+#define BCOM_INITIATOR_ATA_TX	 6
+#define BCOM_INITIATOR_SCPCI_RX	 7
+#define BCOM_INITIATOR_SCPCI_TX	 8
+#define BCOM_INITIATOR_PSC3_RX	 9
+#define BCOM_INITIATOR_PSC3_TX	10
+#define BCOM_INITIATOR_PSC2_RX	11
+#define BCOM_INITIATOR_PSC2_TX	12
+#define BCOM_INITIATOR_PSC1_RX	13
+#define BCOM_INITIATOR_PSC1_TX	14
+#define BCOM_INITIATOR_SCTMR_2	15
+#define BCOM_INITIATOR_SCLPC	16
+#define BCOM_INITIATOR_PSC5_RX	17
+#define BCOM_INITIATOR_PSC5_TX	18
+#define BCOM_INITIATOR_PSC4_RX	19
+#define BCOM_INITIATOR_PSC4_TX	20
+#define BCOM_INITIATOR_I2C2_RX	21
+#define BCOM_INITIATOR_I2C2_TX	22
+#define BCOM_INITIATOR_I2C1_RX	23
+#define BCOM_INITIATOR_I2C1_TX	24
+#define BCOM_INITIATOR_PSC6_RX	25
+#define BCOM_INITIATOR_PSC6_TX	26
+#define BCOM_INITIATOR_IRDA_RX	25
+#define BCOM_INITIATOR_IRDA_TX	26
+#define BCOM_INITIATOR_SCTMR_3	27
+#define BCOM_INITIATOR_SCTMR_4	28
+#define BCOM_INITIATOR_SCTMR_5	29
+#define BCOM_INITIATOR_SCTMR_6	30
+#define BCOM_INITIATOR_SCTMR_7	31
+
+/* Initiators priorities */
+#define BCOM_IPR_ALWAYS		7
+#define BCOM_IPR_SCTMR_0	2
+#define BCOM_IPR_SCTMR_1	2
+#define BCOM_IPR_FEC_RX		6
+#define BCOM_IPR_FEC_TX		5
+#define BCOM_IPR_ATA_RX		4
+#define BCOM_IPR_ATA_TX		3
+#define BCOM_IPR_SCPCI_RX	2
+#define BCOM_IPR_SCPCI_TX	2
+#define BCOM_IPR_PSC3_RX	2
+#define BCOM_IPR_PSC3_TX	2
+#define BCOM_IPR_PSC2_RX	2
+#define BCOM_IPR_PSC2_TX	2
+#define BCOM_IPR_PSC1_RX	2
+#define BCOM_IPR_PSC1_TX	2
+#define BCOM_IPR_SCTMR_2	2
+#define BCOM_IPR_SCLPC		2
+#define BCOM_IPR_PSC5_RX	2
+#define BCOM_IPR_PSC5_TX	2
+#define BCOM_IPR_PSC4_RX	2
+#define BCOM_IPR_PSC4_TX	2
+#define BCOM_IPR_I2C2_RX	2
+#define BCOM_IPR_I2C2_TX	2
+#define BCOM_IPR_I2C1_RX	2
+#define BCOM_IPR_I2C1_TX	2
+#define BCOM_IPR_PSC6_RX	2
+#define BCOM_IPR_PSC6_TX	2
+#define BCOM_IPR_IRDA_RX	2
+#define BCOM_IPR_IRDA_TX	2
+#define BCOM_IPR_SCTMR_3	2
+#define BCOM_IPR_SCTMR_4	2
+#define BCOM_IPR_SCTMR_5	2
+#define BCOM_IPR_SCTMR_6	2
+#define BCOM_IPR_SCTMR_7	2
+
+
+/* ======================================================================== */
+/* API                                                                      */
+/* ======================================================================== */
+
+extern struct bcom_task *bcom_task_alloc(int bd_count, int bd_size, int priv_size);
+extern void bcom_task_free(struct bcom_task *tsk);
+extern int bcom_load_image(int task, u32 *task_image);
+extern void bcom_set_initiator(int task, int initiator);
+
+
+#define TASK_ENABLE             0x8000
+
+static inline void
+bcom_enable_task(int task)
+{
+        u16 reg;
+        reg = in_be16(&bcom_eng->regs->tcr[task]);
+        out_be16(&bcom_eng->regs->tcr[task],  reg | TASK_ENABLE);
+}
+
+static inline void
+bcom_disable_task(int task)
+{
+        u16 reg = in_be16(&bcom_eng->regs->tcr[task]);
+        out_be16(&bcom_eng->regs->tcr[task], reg & ~TASK_ENABLE);
+}
+
+
+static inline u32 *
+bcom_task_desc(int task)
+{
+	return bcom_sram_pa2va(bcom_eng->tdt[task].start);
+}
+
+static inline int
+bcom_task_num_descs(int task)
+{
+	return (bcom_eng->tdt[task].stop - bcom_eng->tdt[task].start)/sizeof(u32) + 1;
+}
+
+static inline u32 *
+bcom_task_var(int task)
+{
+	return bcom_sram_pa2va(bcom_eng->tdt[task].var);
+}
+
+static inline u32 *
+bcom_task_inc(int task)
+{
+	return &bcom_task_var(task)[BCOM_MAX_VAR];
+}
+
+
+static inline int
+bcom_drd_is_extended(u32 desc)
+{
+	return (desc) & BCOM_DRD_EXTENDED;
+}
+
+static inline int
+bcom_desc_is_drd(u32 desc)
+{
+	return !(desc & BCOM_LCD_MASK) && desc != BCOM_DESC_NOP;
+}
+
+static inline int
+bcom_desc_initiator(u32 desc)
+{
+	return (desc >> BCOM_DRD_INITIATOR_SHIFT) & 0x1f;
+}
+
+static inline void
+bcom_set_desc_initiator(u32 *desc, int initiator)
+{
+	*desc = (*desc & ~(0x1f << BCOM_DRD_INITIATOR_SHIFT)) |
+			((initiator & 0x1f) << BCOM_DRD_INITIATOR_SHIFT);
+}
+
+
+static inline void
+bcom_set_task_pragma(int task, int pragma)
+{
+	u32 *fdt = &bcom_eng->tdt[task].fdt;
+	*fdt = (*fdt & ~0xff) | pragma;
+}
+
+static inline void
+bcom_set_task_auto_start(int task, int next_task)
+{
+	u16 __iomem *tcr = &bcom_eng->regs->tcr[task];
+	out_be16(tcr, (in_be16(tcr) & ~0xff) | 0x00c0 | next_task);
+}
+
+static inline void
+bcom_set_tcr_initiator(int task, int initiator)
+{
+	u16 __iomem *tcr = &bcom_eng->regs->tcr[task];
+	out_be16(tcr, (in_be16(tcr) & ~0x1f00) | ((initiator & 0x1f) << 8));
+}
+
+
+#endif /* __BESTCOMM_PRIV_H__ */
+

arch/powerpc/sysdev/bestcomm/fec.c

@@ -0,0 +1,270 @@
+/*
+ * Bestcomm FEC tasks driver
+ *
+ *
+ * Copyright (C) 2006-2007 Sylvain Munaut <tnt@246tNt.com>
+ * Copyright (C) 2003-2004 MontaVista, Software, Inc.
+ *                         ( by Dale Farnsworth <dfarnsworth@mvista.com> )
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <asm/io.h>
+
+#include "bestcomm.h"
+#include "bestcomm_priv.h"
+#include "fec.h"
+
+
+/* ======================================================================== */
+/* Task image/var/inc                                                       */
+/* ======================================================================== */
+
+/* fec tasks images */
+extern u32 bcom_fec_rx_task[];
+extern u32 bcom_fec_tx_task[];
+
+/* rx task vars that need to be set before enabling the task */
+struct bcom_fec_rx_var {
+	u32 enable;		/* (u16*) address of task's control register */
+	u32 fifo;		/* (u32*) address of fec's fifo */
+	u32 bd_base;		/* (struct bcom_bd*) beginning of ring buffer */
+	u32 bd_last;		/* (struct bcom_bd*) end of ring buffer */
+	u32 bd_start;		/* (struct bcom_bd*) current bd */
+	u32 buffer_size;	/* size of receive buffer */
+};
+
+/* rx task incs that need to be set before enabling the task */
+struct bcom_fec_rx_inc {
+	u16 pad0;
+	s16 incr_bytes;
+	u16 pad1;
+	s16 incr_dst;
+	u16 pad2;
+	s16 incr_dst_ma;
+};
+
+/* tx task vars that need to be set before enabling the task */
+struct bcom_fec_tx_var {
+	u32 DRD;		/* (u32*) address of self-modified DRD */
+	u32 fifo;		/* (u32*) address of fec's fifo */
+	u32 enable;		/* (u16*) address of task's control register */
+	u32 bd_base;		/* (struct bcom_bd*) beginning of ring buffer */
+	u32 bd_last;		/* (struct bcom_bd*) end of ring buffer */
+	u32 bd_start;		/* (struct bcom_bd*) current bd */
+	u32 buffer_size;	/* set by uCode for each packet */
+};
+
+/* tx task incs that need to be set before enabling the task */
+struct bcom_fec_tx_inc {
+	u16 pad0;
+	s16 incr_bytes;
+	u16 pad1;
+	s16 incr_src;
+	u16 pad2;
+	s16 incr_src_ma;
+};
+
+/* private structure in the task */
+struct bcom_fec_priv {
+	phys_addr_t	fifo;
+	int		maxbufsize;
+};
+
+
+/* ======================================================================== */
+/* Task support code                                                        */
+/* ======================================================================== */
+
+struct bcom_task *
+bcom_fec_rx_init(int queue_len, phys_addr_t fifo, int maxbufsize)
+{
+	struct bcom_task *tsk;
+	struct bcom_fec_priv *priv;
+
+	tsk = bcom_task_alloc(queue_len, sizeof(struct bcom_fec_bd),
+				sizeof(struct bcom_fec_priv));
+	if (!tsk)
+		return NULL;
+
+	tsk->flags = BCOM_FLAGS_NONE;
+
+	priv = tsk->priv;
+	priv->fifo = fifo;
+	priv->maxbufsize = maxbufsize;
+
+	if (bcom_fec_rx_reset(tsk)) {
+		bcom_task_free(tsk);
+		return NULL;
+	}
+
+	return tsk;
+}
+EXPORT_SYMBOL_GPL(bcom_fec_rx_init);
+
+int
+bcom_fec_rx_reset(struct bcom_task *tsk)
+{
+	struct bcom_fec_priv *priv = tsk->priv;
+	struct bcom_fec_rx_var *var;
+	struct bcom_fec_rx_inc *inc;
+
+	/* Shutdown the task */
+	bcom_disable_task(tsk->tasknum);
+
+	/* Reset the microcode */
+	var = (struct bcom_fec_rx_var *) bcom_task_var(tsk->tasknum);
+	inc = (struct bcom_fec_rx_inc *) bcom_task_inc(tsk->tasknum);
+
+	if (bcom_load_image(tsk->tasknum, bcom_fec_rx_task))
+		return -1;
+
+	var->enable	= bcom_eng->regs_base +
+				offsetof(struct mpc52xx_sdma, tcr[tsk->tasknum]);
+	var->fifo	= (u32) priv->fifo;
+	var->bd_base	= tsk->bd_pa;
+	var->bd_last	= tsk->bd_pa + ((tsk->num_bd-1) * tsk->bd_size);
+	var->bd_start	= tsk->bd_pa;
+	var->buffer_size = priv->maxbufsize;
+
+	inc->incr_bytes	= -(s16)sizeof(u32);	/* These should be in the   */
+	inc->incr_dst	= sizeof(u32);		/* task image, but we stick */
+	inc->incr_dst_ma= sizeof(u8);		/* to the official ones     */
+
+	/* Reset the BDs */
+	tsk->index = 0;
+	tsk->outdex = 0;
+
+	memset(tsk->bd, 0x00, tsk->num_bd * tsk->bd_size);
+
+	/* Configure some stuff */
+	bcom_set_task_pragma(tsk->tasknum, BCOM_FEC_RX_BD_PRAGMA);
+	bcom_set_task_auto_start(tsk->tasknum, tsk->tasknum);
+
+	out_8(&bcom_eng->regs->ipr[BCOM_INITIATOR_FEC_RX], BCOM_IPR_FEC_RX);
+
+	out_be32(&bcom_eng->regs->IntPend, 1<<tsk->tasknum);	/* Clear ints */
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(bcom_fec_rx_reset);
+
+void
+bcom_fec_rx_release(struct bcom_task *tsk)
+{
+	/* Nothing special for the FEC tasks */
+	bcom_task_free(tsk);
+}
+EXPORT_SYMBOL_GPL(bcom_fec_rx_release);
+
+
+
+	/* Return 2nd to last DRD */
+	/* This is an ugly hack, but at least it's only done
+	   once at initialization */
+static u32 *self_modified_drd(int tasknum)
+{
+	u32 *desc;
+	int num_descs;
+	int drd_count;
+	int i;
+
+	num_descs = bcom_task_num_descs(tasknum);
+	desc = bcom_task_desc(tasknum) + num_descs - 1;
+	drd_count = 0;
+	for (i=0; i<num_descs; i++, desc--)
+		if (bcom_desc_is_drd(*desc) && ++drd_count == 3)
+			break;
+	return desc;
+}
+
+struct bcom_task *
+bcom_fec_tx_init(int queue_len, phys_addr_t fifo)
+{
+	struct bcom_task *tsk;
+	struct bcom_fec_priv *priv;
+
+	tsk = bcom_task_alloc(queue_len, sizeof(struct bcom_fec_bd),
+				sizeof(struct bcom_fec_priv));
+	if (!tsk)
+		return NULL;
+
+	tsk->flags = BCOM_FLAGS_ENABLE_TASK;
+
+	priv = tsk->priv;
+	priv->fifo = fifo;
+
+	if (bcom_fec_tx_reset(tsk)) {
+		bcom_task_free(tsk);
+		return NULL;
+	}
+
+	return tsk;
+}
+EXPORT_SYMBOL_GPL(bcom_fec_tx_init);
+
+int
+bcom_fec_tx_reset(struct bcom_task *tsk)
+{
+	struct bcom_fec_priv *priv = tsk->priv;
+	struct bcom_fec_tx_var *var;
+	struct bcom_fec_tx_inc *inc;
+
+	/* Shutdown the task */
+	bcom_disable_task(tsk->tasknum);
+
+	/* Reset the microcode */
+	var = (struct bcom_fec_tx_var *) bcom_task_var(tsk->tasknum);
+	inc = (struct bcom_fec_tx_inc *) bcom_task_inc(tsk->tasknum);
+
+	if (bcom_load_image(tsk->tasknum, bcom_fec_tx_task))
+		return -1;
+
+	var->enable	= bcom_eng->regs_base +
+				offsetof(struct mpc52xx_sdma, tcr[tsk->tasknum]);
+	var->fifo	= (u32) priv->fifo;
+	var->DRD	= bcom_sram_va2pa(self_modified_drd(tsk->tasknum));
+	var->bd_base	= tsk->bd_pa;
+	var->bd_last	= tsk->bd_pa + ((tsk->num_bd-1) * tsk->bd_size);
+	var->bd_start	= tsk->bd_pa;
+
+	inc->incr_bytes	= -(s16)sizeof(u32);	/* These should be in the   */
+	inc->incr_src	= sizeof(u32);		/* task image, but we stick */
+	inc->incr_src_ma= sizeof(u8);		/* to the official ones     */
+
+	/* Reset the BDs */
+	tsk->index = 0;
+	tsk->outdex = 0;
+
+	memset(tsk->bd, 0x00, tsk->num_bd * tsk->bd_size);
+
+	/* Configure some stuff */
+	bcom_set_task_pragma(tsk->tasknum, BCOM_FEC_TX_BD_PRAGMA);
+	bcom_set_task_auto_start(tsk->tasknum, tsk->tasknum);
+
+	out_8(&bcom_eng->regs->ipr[BCOM_INITIATOR_FEC_TX], BCOM_IPR_FEC_TX);
+
+	out_be32(&bcom_eng->regs->IntPend, 1<<tsk->tasknum);	/* Clear ints */
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(bcom_fec_tx_reset);
+
+void
+bcom_fec_tx_release(struct bcom_task *tsk)
+{
+	/* Nothing special for the FEC tasks */
+	bcom_task_free(tsk);
+}
+EXPORT_SYMBOL_GPL(bcom_fec_tx_release);
+
+
+MODULE_DESCRIPTION("BestComm FEC tasks driver");
+MODULE_AUTHOR("Dale Farnsworth <dfarnsworth@mvista.com>");
+MODULE_LICENSE("GPL v2");
+

arch/powerpc/sysdev/bestcomm/fec.h

@@ -0,0 +1,61 @@
+/*
+ * Header for Bestcomm FEC tasks driver
+ *
+ *
+ * Copyright (C) 2006-2007 Sylvain Munaut <tnt@246tNt.com>
+ * Copyright (C) 2003-2004 MontaVista, Software, Inc.
+ *                         ( by Dale Farnsworth <dfarnsworth@mvista.com> )
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#ifndef __BESTCOMM_FEC_H__
+#define __BESTCOMM_FEC_H__
+
+
+struct bcom_fec_bd {
+	u32	status;
+	u32	skb_pa;
+};
+
+#define BCOM_FEC_TX_BD_TFD	0x08000000ul	/* transmit frame done */
+#define BCOM_FEC_TX_BD_TC	0x04000000ul	/* transmit CRC */
+#define BCOM_FEC_TX_BD_ABC	0x02000000ul	/* append bad CRC */
+
+#define BCOM_FEC_RX_BD_L	0x08000000ul	/* buffer is last in frame */
+#define BCOM_FEC_RX_BD_BC	0x00800000ul	/* DA is broadcast */
+#define BCOM_FEC_RX_BD_MC	0x00400000ul	/* DA is multicast and not broadcast */
+#define BCOM_FEC_RX_BD_LG	0x00200000ul	/* Rx frame length violation */
+#define BCOM_FEC_RX_BD_NO	0x00100000ul	/* Rx non-octet aligned frame */
+#define BCOM_FEC_RX_BD_CR	0x00040000ul	/* Rx CRC error */
+#define BCOM_FEC_RX_BD_OV	0x00020000ul	/* overrun */
+#define BCOM_FEC_RX_BD_TR	0x00010000ul	/* Rx frame truncated */
+#define BCOM_FEC_RX_BD_LEN_MASK	0x000007fful	/* mask for length of received frame */
+#define BCOM_FEC_RX_BD_ERRORS	(BCOM_FEC_RX_BD_LG | BCOM_FEC_RX_BD_NO | \
+		BCOM_FEC_RX_BD_CR | BCOM_FEC_RX_BD_OV | BCOM_FEC_RX_BD_TR)
+
+
+extern struct bcom_task *
+bcom_fec_rx_init(int queue_len, phys_addr_t fifo, int maxbufsize);
+
+extern int
+bcom_fec_rx_reset(struct bcom_task *tsk);
+
+extern void
+bcom_fec_rx_release(struct bcom_task *tsk);
+
+
+extern struct bcom_task *
+bcom_fec_tx_init(int queue_len, phys_addr_t fifo);
+
+extern int
+bcom_fec_tx_reset(struct bcom_task *tsk);
+
+extern void
+bcom_fec_tx_release(struct bcom_task *tsk);
+
+
+#endif /* __BESTCOMM_FEC_H__ */
+

arch/powerpc/sysdev/bestcomm/gen_bd.c

@@ -0,0 +1,260 @@
+/*
+ * Driver for MPC52xx processor BestComm General Buffer Descriptor
+ *
+ * Copyright (C) 2007 Sylvain Munaut <tnt@246tNt.com>
+ * Copyright (C) 2006 AppSpec Computer Technologies Corp.
+ *                    Jeff Gibbons <jeff.gibbons@appspec.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ */
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <asm/errno.h>
+#include <asm/io.h>
+
+#include <asm/mpc52xx.h>
+
+#include "bestcomm.h"
+#include "bestcomm_priv.h"
+#include "gen_bd.h"
+
+
+/* ======================================================================== */
+/* Task image/var/inc                                                       */
+/* ======================================================================== */
+
+/* gen_bd tasks images */
+extern u32 bcom_gen_bd_rx_task[];
+extern u32 bcom_gen_bd_tx_task[];
+
+/* rx task vars that need to be set before enabling the task */
+struct bcom_gen_bd_rx_var {
+	u32 enable;		/* (u16*) address of task's control register */
+	u32 fifo;		/* (u32*) address of gen_bd's fifo */
+	u32 bd_base;		/* (struct bcom_bd*) beginning of ring buffer */
+	u32 bd_last;		/* (struct bcom_bd*) end of ring buffer */
+	u32 bd_start;		/* (struct bcom_bd*) current bd */
+	u32 buffer_size;	/* size of receive buffer */
+};
+
+/* rx task incs that need to be set before enabling the task */
+struct bcom_gen_bd_rx_inc {
+	u16 pad0;
+	s16 incr_bytes;
+	u16 pad1;
+	s16 incr_dst;
+};
+
+/* tx task vars that need to be set before enabling the task */
+struct bcom_gen_bd_tx_var {
+	u32 fifo;		/* (u32*) address of gen_bd's fifo */
+	u32 enable;		/* (u16*) address of task's control register */
+	u32 bd_base;		/* (struct bcom_bd*) beginning of ring buffer */
+	u32 bd_last;		/* (struct bcom_bd*) end of ring buffer */
+	u32 bd_start;		/* (struct bcom_bd*) current bd */
+	u32 buffer_size;	/* set by uCode for each packet */
+};
+
+/* tx task incs that need to be set before enabling the task */
+struct bcom_gen_bd_tx_inc {
+	u16 pad0;
+	s16 incr_bytes;
+	u16 pad1;
+	s16 incr_src;
+	u16 pad2;
+	s16 incr_src_ma;
+};
+
+/* private structure */
+struct bcom_gen_bd_priv {
+	phys_addr_t	fifo;
+	int		initiator;
+	int		ipr;
+	int		maxbufsize;
+};
+
+
+/* ======================================================================== */
+/* Task support code                                                        */
+/* ======================================================================== */
+
+struct bcom_task *
+bcom_gen_bd_rx_init(int queue_len, phys_addr_t fifo,
+			int initiator, int ipr, int maxbufsize)
+{
+	struct bcom_task *tsk;
+	struct bcom_gen_bd_priv *priv;
+
+	tsk = bcom_task_alloc(queue_len, sizeof(struct bcom_gen_bd),
+			sizeof(struct bcom_gen_bd_priv));
+	if (!tsk)
+		return NULL;
+
+	tsk->flags = BCOM_FLAGS_NONE;
+
+	priv = tsk->priv;
+	priv->fifo	= fifo;
+	priv->initiator	= initiator;
+	priv->ipr	= ipr;
+	priv->maxbufsize = maxbufsize;
+
+	if (bcom_gen_bd_rx_reset(tsk)) {
+		bcom_task_free(tsk);
+		return NULL;
+	}
+
+	return tsk;
+}
+EXPORT_SYMBOL_GPL(bcom_gen_bd_rx_init);
+
+int
+bcom_gen_bd_rx_reset(struct bcom_task *tsk)
+{
+	struct bcom_gen_bd_priv *priv = tsk->priv;
+	struct bcom_gen_bd_rx_var *var;
+	struct bcom_gen_bd_rx_inc *inc;
+
+	/* Shutdown the task */
+	bcom_disable_task(tsk->tasknum);
+
+	/* Reset the microcode */
+	var = (struct bcom_gen_bd_rx_var *) bcom_task_var(tsk->tasknum);
+	inc = (struct bcom_gen_bd_rx_inc *) bcom_task_inc(tsk->tasknum);
+
+	if (bcom_load_image(tsk->tasknum, bcom_gen_bd_rx_task))
+		return -1;
+
+	var->enable	= bcom_eng->regs_base +
+				offsetof(struct mpc52xx_sdma, tcr[tsk->tasknum]);
+	var->fifo	= (u32) priv->fifo;
+	var->bd_base	= tsk->bd_pa;
+	var->bd_last	= tsk->bd_pa + ((tsk->num_bd-1) * tsk->bd_size);
+	var->bd_start	= tsk->bd_pa;
+	var->buffer_size = priv->maxbufsize;
+
+	inc->incr_bytes	= -(s16)sizeof(u32);
+	inc->incr_dst	= sizeof(u32);
+
+	/* Reset the BDs */
+	tsk->index = 0;
+	tsk->outdex = 0;
+
+	memset(tsk->bd, 0x00, tsk->num_bd * tsk->bd_size);
+
+	/* Configure some stuff */
+	bcom_set_task_pragma(tsk->tasknum, BCOM_GEN_RX_BD_PRAGMA);
+	bcom_set_task_auto_start(tsk->tasknum, tsk->tasknum);
+
+	out_8(&bcom_eng->regs->ipr[priv->initiator], priv->ipr);
+	bcom_set_initiator(tsk->tasknum, priv->initiator);
+
+	out_be32(&bcom_eng->regs->IntPend, 1<<tsk->tasknum);	/* Clear ints */
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(bcom_gen_bd_rx_reset);
+
+void
+bcom_gen_bd_rx_release(struct bcom_task *tsk)
+{
+	/* Nothing special for the GenBD tasks */
+	bcom_task_free(tsk);
+}
+EXPORT_SYMBOL_GPL(bcom_gen_bd_rx_release);
+
+
+extern struct bcom_task *
+bcom_gen_bd_tx_init(int queue_len, phys_addr_t fifo,
+			int initiator, int ipr)
+{
+	struct bcom_task *tsk;
+	struct bcom_gen_bd_priv *priv;
+
+	tsk = bcom_task_alloc(queue_len, sizeof(struct bcom_gen_bd),
+			sizeof(struct bcom_gen_bd_priv));
+	if (!tsk)
+		return NULL;
+
+	tsk->flags = BCOM_FLAGS_NONE;
+
+	priv = tsk->priv;
+	priv->fifo	= fifo;
+	priv->initiator	= initiator;
+	priv->ipr	= ipr;
+
+	if (bcom_gen_bd_tx_reset(tsk)) {
+		bcom_task_free(tsk);
+		return NULL;
+	}
+
+	return tsk;
+}
+EXPORT_SYMBOL_GPL(bcom_gen_bd_tx_init);
+
+int
+bcom_gen_bd_tx_reset(struct bcom_task *tsk)
+{
+	struct bcom_gen_bd_priv *priv = tsk->priv;
+	struct bcom_gen_bd_tx_var *var;
+	struct bcom_gen_bd_tx_inc *inc;
+
+	/* Shutdown the task */
+	bcom_disable_task(tsk->tasknum);
+
+	/* Reset the microcode */
+	var = (struct bcom_gen_bd_tx_var *) bcom_task_var(tsk->tasknum);
+	inc = (struct bcom_gen_bd_tx_inc *) bcom_task_inc(tsk->tasknum);
+
+	if (bcom_load_image(tsk->tasknum, bcom_gen_bd_tx_task))
+		return -1;
+
+	var->enable	= bcom_eng->regs_base +
+				offsetof(struct mpc52xx_sdma, tcr[tsk->tasknum]);
+	var->fifo	= (u32) priv->fifo;
+	var->bd_base	= tsk->bd_pa;
+	var->bd_last	= tsk->bd_pa + ((tsk->num_bd-1) * tsk->bd_size);
+	var->bd_start	= tsk->bd_pa;
+
+	inc->incr_bytes	= -(s16)sizeof(u32);
+	inc->incr_src	= sizeof(u32);
+	inc->incr_src_ma = sizeof(u8);
+
+	/* Reset the BDs */
+	tsk->index = 0;
+	tsk->outdex = 0;
+
+	memset(tsk->bd, 0x00, tsk->num_bd * tsk->bd_size);
+
+	/* Configure some stuff */
+	bcom_set_task_pragma(tsk->tasknum, BCOM_GEN_TX_BD_PRAGMA);
+	bcom_set_task_auto_start(tsk->tasknum, tsk->tasknum);
+
+	out_8(&bcom_eng->regs->ipr[priv->initiator], priv->ipr);
+	bcom_set_initiator(tsk->tasknum, priv->initiator);
+
+	out_be32(&bcom_eng->regs->IntPend, 1<<tsk->tasknum);	/* Clear ints */
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(bcom_gen_bd_tx_reset);
+
+void
+bcom_gen_bd_tx_release(struct bcom_task *tsk)
+{
+	/* Nothing special for the GenBD tasks */
+	bcom_task_free(tsk);
+}
+EXPORT_SYMBOL_GPL(bcom_gen_bd_tx_release);
+
+
+MODULE_DESCRIPTION("BestComm General Buffer Descriptor tasks driver");
+MODULE_AUTHOR("Jeff Gibbons <jeff.gibbons@appspec.com>");
+MODULE_LICENSE("GPL v2");
+

arch/powerpc/sysdev/bestcomm/gen_bd.h

@@ -0,0 +1,48 @@
+/*
+ * Header for Bestcomm General Buffer Descriptor tasks driver
+ *
+ *
+ * Copyright (C) 2007 Sylvain Munaut <tnt@246tNt.com>
+ * Copyright (C) 2006 AppSpec Computer Technologies Corp.
+ *                    Jeff Gibbons <jeff.gibbons@appspec.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ *
+ */
+
+#ifndef __BESTCOMM_GEN_BD_H__
+#define __BESTCOMM_GEN_BD_H__
+
+struct bcom_gen_bd {
+	u32	status;
+	u32	buf_pa;
+};
+
+
+extern struct bcom_task *
+bcom_gen_bd_rx_init(int queue_len, phys_addr_t fifo,
+			int initiator, int ipr, int maxbufsize);
+
+extern int
+bcom_gen_bd_rx_reset(struct bcom_task *tsk);
+
+extern void
+bcom_gen_bd_rx_release(struct bcom_task *tsk);
+
+
+extern struct bcom_task *
+bcom_gen_bd_tx_init(int queue_len, phys_addr_t fifo,
+			int initiator, int ipr);
+
+extern int
+bcom_gen_bd_tx_reset(struct bcom_task *tsk);
+
+extern void
+bcom_gen_bd_tx_release(struct bcom_task *tsk);
+
+
+#endif  /* __BESTCOMM_GEN_BD_H__ */
+

arch/powerpc/sysdev/bestcomm/sram.c

@@ -0,0 +1,177 @@
+/*
+ * Simple memory allocator for on-board SRAM
+ *
+ *
+ * Maintainer : Sylvain Munaut <tnt@246tNt.com>
+ *
+ * Copyright (C) 2005 Sylvain Munaut <tnt@246tNt.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/string.h>
+#include <linux/ioport.h>
+#include <linux/of.h>
+
+#include <asm/io.h>
+#include <asm/mmu.h>
+
+#include "sram.h"
+
+
+/* Struct keeping our 'state' */
+struct bcom_sram *bcom_sram = NULL;
+EXPORT_SYMBOL_GPL(bcom_sram);	/* needed for inline functions */
+
+
+/* ======================================================================== */
+/* Public API                                                               */
+/* ======================================================================== */
+/* DO NOT USE in interrupts, if needed in irq handler, we should use the
+   _irqsave version of the spin_locks */
+
+int bcom_sram_init(struct device_node *sram_node, char *owner)
+{
+	int rv;
+	const u32 *regaddr_p;
+	u64 regaddr64, size64;
+	unsigned int psize;
+
+	/* Create our state struct */
+	if (bcom_sram) {
+		printk(KERN_ERR "%s: bcom_sram_init: "
+			"Already initialized !\n", owner);
+		return -EBUSY;
+	}
+
+	bcom_sram = kmalloc(sizeof(struct bcom_sram), GFP_KERNEL);
+	if (!bcom_sram) {
+		printk(KERN_ERR "%s: bcom_sram_init: "
+			"Couldn't allocate internal state !\n", owner);
+		return -ENOMEM;
+	}
+
+	/* Get address and size of the sram */
+	regaddr_p = of_get_address(sram_node, 0, &size64, NULL);
+	if (!regaddr_p) {
+		printk(KERN_ERR "%s: bcom_sram_init: "
+			"Invalid device node !\n", owner);
+		rv = -EINVAL;
+		goto error_free;
+	}
+
+	regaddr64 = of_translate_address(sram_node, regaddr_p);
+
+	bcom_sram->base_phys = (phys_addr_t) regaddr64;
+	bcom_sram->size = (unsigned int) size64;
+
+	/* Request region */
+	if (!request_mem_region(bcom_sram->base_phys, bcom_sram->size, owner)) {
+		printk(KERN_ERR "%s: bcom_sram_init: "
+			"Couldn't request region !\n", owner);
+		rv = -EBUSY;
+		goto error_free;
+	}
+
+	/* Map SRAM */
+		/* sram is not really __iomem */
+	bcom_sram->base_virt = (void*) ioremap(bcom_sram->base_phys, bcom_sram->size);
+
+	if (!bcom_sram->base_virt) {
+		printk(KERN_ERR "%s: bcom_sram_init: "
+			"Map error SRAM zone 0x%08lx (0x%0x)!\n",
+			owner, bcom_sram->base_phys, bcom_sram->size );
+		rv = -ENOMEM;
+		goto error_release;
+	}
+
+	/* Create an rheap (defaults to 32 bits word alignment) */
+	bcom_sram->rh = rh_create(4);
+
+	/* Attach the free zones */
+#if 0
+	/* Currently disabled ... for future use only */
+	reg_addr_p = of_get_property(sram_node, "available", &psize);
+#else
+	regaddr_p = NULL;
+	psize = 0;
+#endif
+
+	if (!regaddr_p || !psize) {
+		/* Attach the whole zone */
+		rh_attach_region(bcom_sram->rh, 0, bcom_sram->size);
+	} else {
+		/* Attach each zone independently */
+		while (psize >= 2 * sizeof(u32)) {
+			phys_addr_t zbase = of_translate_address(sram_node, regaddr_p);
+			rh_attach_region(bcom_sram->rh, zbase - bcom_sram->base_phys, regaddr_p[1]);
+			regaddr_p += 2;
+			psize -= 2 * sizeof(u32);
+		}
+	}
+
+	/* Init our spinlock */
+	spin_lock_init(&bcom_sram->lock);
+
+	return 0;
+
+error_release:
+	release_mem_region(bcom_sram->base_phys, bcom_sram->size);
+error_free:
+	kfree(bcom_sram);
+	bcom_sram = NULL;
+
+	return rv;
+}
+EXPORT_SYMBOL_GPL(bcom_sram_init);
+
+void bcom_sram_cleanup(void)
+{
+	/* Free resources */
+	if (bcom_sram) {
+		rh_destroy(bcom_sram->rh);
+		iounmap((void __iomem *)bcom_sram->base_virt);
+		release_mem_region(bcom_sram->base_phys, bcom_sram->size);
+		kfree(bcom_sram);
+		bcom_sram = NULL;
+	}
+}
+EXPORT_SYMBOL_GPL(bcom_sram_cleanup);
+
+void* bcom_sram_alloc(int size, int align, phys_addr_t *phys)
+{
+	unsigned long offset;
+
+	spin_lock(&bcom_sram->lock);
+	offset = rh_alloc_align(bcom_sram->rh, size, align, NULL);
+	spin_unlock(&bcom_sram->lock);
+
+	if (IS_ERR_VALUE(offset))
+		return NULL;
+
+	*phys = bcom_sram->base_phys + offset;
+	return bcom_sram->base_virt + offset;
+}
+EXPORT_SYMBOL_GPL(bcom_sram_alloc);
+
+void bcom_sram_free(void *ptr)
+{
+	unsigned long offset;
+
+	if (!ptr)
+		return;
+
+	offset = ptr - bcom_sram->base_virt;
+
+	spin_lock(&bcom_sram->lock);
+	rh_free(bcom_sram->rh, offset);
+	spin_unlock(&bcom_sram->lock);
+}
+EXPORT_SYMBOL_GPL(bcom_sram_free);
+

arch/powerpc/sysdev/bestcomm/sram.h

@@ -0,0 +1,54 @@
+/*
+ * Handling of a sram zone for bestcomm
+ *
+ *
+ * Copyright (C) 2007 Sylvain Munaut <tnt@246tNt.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#ifndef __BESTCOMM_SRAM_H__
+#define __BESTCOMM_SRAM_H__
+
+#include <asm/rheap.h>
+#include <asm/mmu.h>
+#include <linux/spinlock.h>
+
+
+/* Structure used internally */
+	/* The internals are here for the inline functions
+	 * sake, certainly not for the user to mess with !
+	 */
+struct bcom_sram {
+	phys_addr_t		 base_phys;
+	void 			*base_virt;
+	unsigned int		 size;
+	rh_info_t		*rh;
+	spinlock_t		 lock;
+};
+
+extern struct bcom_sram *bcom_sram;
+
+
+/* Public API */
+extern int  bcom_sram_init(struct device_node *sram_node, char *owner);
+extern void bcom_sram_cleanup(void);
+
+extern void* bcom_sram_alloc(int size, int align, phys_addr_t *phys);
+extern void  bcom_sram_free(void *ptr);
+
+static inline phys_addr_t bcom_sram_va2pa(void *va) {
+	return bcom_sram->base_phys +
+		(unsigned long)(va - bcom_sram->base_virt);
+}
+
+static inline void *bcom_sram_pa2va(phys_addr_t pa) {
+	return bcom_sram->base_virt +
+		(unsigned long)(pa - bcom_sram->base_phys);
+}
+
+
+#endif  /* __BESTCOMM_SRAM_H__ */
+

arch/powerpc/sysdev/fsl_pci.c

@@ -255,7 +255,7 @@ DECLARE_PCI_FIXUP_EARLY(0x1957, PCI_DEVICE_ID_MPC8533E, quirk_fsl_pcie_transpare
 DECLARE_PCI_FIXUP_EARLY(0x1957, PCI_DEVICE_ID_MPC8533, quirk_fsl_pcie_transparent);
 DECLARE_PCI_FIXUP_EARLY(0x1957, PCI_DEVICE_ID_MPC8544E, quirk_fsl_pcie_transparent);
 DECLARE_PCI_FIXUP_EARLY(0x1957, PCI_DEVICE_ID_MPC8544, quirk_fsl_pcie_transparent);
-DECLARE_PCI_FIXUP_EARLY(0x1957, PCI_DEVICE_ID_MPC8572E, quirk_fsl_pcie_transparent)
+DECLARE_PCI_FIXUP_EARLY(0x1957, PCI_DEVICE_ID_MPC8572E, quirk_fsl_pcie_transparent);
 DECLARE_PCI_FIXUP_EARLY(0x1957, PCI_DEVICE_ID_MPC8572, quirk_fsl_pcie_transparent);
 DECLARE_PCI_FIXUP_EARLY(0x1957, PCI_DEVICE_ID_MPC8641, quirk_fsl_pcie_transparent);
 DECLARE_PCI_FIXUP_EARLY(0x1957, PCI_DEVICE_ID_MPC8641D, quirk_fsl_pcie_transparent);

arch/ppc/Kconfig

@@ -102,6 +102,7 @@ config 44x
 
 config 8xx
 	bool "8xx"
+	select PPC_LIB_RHEAP
 
 config E200
 	bool "e200"
@@ -798,6 +799,7 @@ config CPM1
 config CPM2
 	bool
 	depends on 8260 || MPC8560 || MPC8555
+	select PPC_LIB_RHEAP
 	default y
 	help
 	  The CPM2 (Communications Processor Module) is a coprocessor on
@@ -1277,6 +1279,10 @@ config BOOT_LOAD
 config PIN_TLB
 	bool "Pinned Kernel TLBs (860 ONLY)"
 	depends on ADVANCED_OPTIONS && 8xx
+
+config PPC_LIB_RHEAP
+	bool
+
 endmenu
 
 source "net/Kconfig"

drivers/infiniband/hw/ehca/ehca_classes.h

@@ -107,7 +107,7 @@ struct ehca_sport {
 
 struct ehca_shca {
 	struct ib_device ib_device;
-	struct ibmebus_dev *ibmebus_dev;
+	struct of_device *ofdev;
 	u8 num_ports;
 	int hw_level;
 	struct list_head shca_list;

drivers/infiniband/hw/ehca/ehca_eq.c

@@ -123,7 +123,7 @@ int ehca_create_eq(struct ehca_shca *shca,
 
 	/* register interrupt handlers and initialize work queues */
 	if (type == EHCA_EQ) {
-		ret = ibmebus_request_irq(NULL, eq->ist, ehca_interrupt_eq,
+		ret = ibmebus_request_irq(eq->ist, ehca_interrupt_eq,
 					  IRQF_DISABLED, "ehca_eq",
 					  (void *)shca);
 		if (ret < 0)
@@ -131,7 +131,7 @@ int ehca_create_eq(struct ehca_shca *shca,
 
 		tasklet_init(&eq->interrupt_task, ehca_tasklet_eq, (long)shca);
 	} else if (type == EHCA_NEQ) {
-		ret = ibmebus_request_irq(NULL, eq->ist, ehca_interrupt_neq,
+		ret = ibmebus_request_irq(eq->ist, ehca_interrupt_neq,
 					  IRQF_DISABLED, "ehca_neq",
 					  (void *)shca);
 		if (ret < 0)
@@ -171,7 +171,7 @@ int ehca_destroy_eq(struct ehca_shca *shca, struct ehca_eq *eq)
 	u64 h_ret;
 
 	spin_lock_irqsave(&eq->spinlock, flags);
-	ibmebus_free_irq(NULL, eq->ist, (void *)shca);
+	ibmebus_free_irq(eq->ist, (void *)shca);
 
 	h_ret = hipz_h_destroy_eq(shca->ipz_hca_handle, eq);
 

drivers/infiniband/hw/ehca/ehca_main.c

@@ -404,7 +404,7 @@ int ehca_init_device(struct ehca_shca *shca)
 	shca->ib_device.node_type           = RDMA_NODE_IB_CA;
 	shca->ib_device.phys_port_cnt       = shca->num_ports;
 	shca->ib_device.num_comp_vectors    = 1;
-	shca->ib_device.dma_device          = &shca->ibmebus_dev->ofdev.dev;
+	shca->ib_device.dma_device          = &shca->ofdev->dev;
 	shca->ib_device.query_device        = ehca_query_device;
 	shca->ib_device.query_port          = ehca_query_port;
 	shca->ib_device.query_gid           = ehca_query_gid;
@@ -658,7 +658,7 @@ static struct attribute_group ehca_dev_attr_grp = {
 	.attrs = ehca_dev_attrs
 };
 
-static int __devinit ehca_probe(struct ibmebus_dev *dev,
+static int __devinit ehca_probe(struct of_device *dev,
 				const struct of_device_id *id)
 {
 	struct ehca_shca *shca;
@@ -666,16 +666,16 @@ static int __devinit ehca_probe(struct ibmebus_dev *dev,
 	struct ib_pd *ibpd;
 	int ret;
 
-	handle = of_get_property(dev->ofdev.node, "ibm,hca-handle", NULL);
+	handle = of_get_property(dev->node, "ibm,hca-handle", NULL);
 	if (!handle) {
 		ehca_gen_err("Cannot get eHCA handle for adapter: %s.",
-			     dev->ofdev.node->full_name);
+			     dev->node->full_name);
 		return -ENODEV;
 	}
 
 	if (!(*handle)) {
 		ehca_gen_err("Wrong eHCA handle for adapter: %s.",
-			     dev->ofdev.node->full_name);
+			     dev->node->full_name);
 		return -ENODEV;
 	}
 
@@ -686,9 +686,9 @@ static int __devinit ehca_probe(struct ibmebus_dev *dev,
 	}
 	mutex_init(&shca->modify_mutex);
 
-	shca->ibmebus_dev = dev;
+	shca->ofdev = dev;
 	shca->ipz_hca_handle.handle = *handle;
-	dev->ofdev.dev.driver_data = shca;
+	dev->dev.driver_data = shca;
 
 	ret = ehca_sense_attributes(shca);
 	if (ret < 0) {
@@ -764,7 +764,7 @@ static int __devinit ehca_probe(struct ibmebus_dev *dev,
 		}
 	}
 
-	ret = sysfs_create_group(&dev->ofdev.dev.kobj, &ehca_dev_attr_grp);
+	ret = sysfs_create_group(&dev->dev.kobj, &ehca_dev_attr_grp);
 	if (ret) /* only complain; we can live without attributes */
 		ehca_err(&shca->ib_device,
 			 "Cannot create device attributes  ret=%d", ret);
@@ -814,12 +814,12 @@ probe1:
 	return -EINVAL;
 }
 
-static int __devexit ehca_remove(struct ibmebus_dev *dev)
+static int __devexit ehca_remove(struct of_device *dev)
 {
-	struct ehca_shca *shca = dev->ofdev.dev.driver_data;
+	struct ehca_shca *shca = dev->dev.driver_data;
 	int ret;
 
-	sysfs_remove_group(&dev->ofdev.dev.kobj, &ehca_dev_attr_grp);
+	sysfs_remove_group(&dev->dev.kobj, &ehca_dev_attr_grp);
 
 	if (ehca_open_aqp1 == 1) {
 		int i;
@@ -870,11 +870,11 @@ static struct of_device_id ehca_device_table[] =
 	{},
 };
 
-static struct ibmebus_driver ehca_driver = {
-	.name     = "ehca",
-	.id_table = ehca_device_table,
-	.probe    = ehca_probe,
-	.remove   = ehca_remove,
+static struct of_platform_driver ehca_driver = {
+	.name        = "ehca",
+	.match_table = ehca_device_table,
+	.probe       = ehca_probe,
+	.remove      = ehca_remove,
 };
 
 void ehca_poll_eqs(unsigned long data)

drivers/net/ehea/ehea.h

@@ -388,7 +388,7 @@ struct ehea_port_res {
 #define EHEA_MAX_PORTS 16
 struct ehea_adapter {
 	u64 handle;
-	struct ibmebus_dev *ebus_dev;
+	struct of_device *ofdev;
 	struct ehea_port *port[EHEA_MAX_PORTS];
 	struct ehea_eq *neq;       /* notification event queue */
 	struct tasklet_struct neq_tasklet;

drivers/net/ehea/ehea_main.c

@@ -98,10 +98,10 @@ struct work_struct ehea_rereg_mr_task;
 
 struct semaphore dlpar_mem_lock;
 
-static int __devinit ehea_probe_adapter(struct ibmebus_dev *dev,
+static int __devinit ehea_probe_adapter(struct of_device *dev,
 					const struct of_device_id *id);
 
-static int __devexit ehea_remove(struct ibmebus_dev *dev);
+static int __devexit ehea_remove(struct of_device *dev);
 
 static struct of_device_id ehea_device_table[] = {
 	{
@@ -111,9 +111,9 @@ static struct of_device_id ehea_device_table[] = {
 	{},
 };
 
-static struct ibmebus_driver ehea_driver = {
+static struct of_platform_driver ehea_driver = {
 	.name = "ehea",
-	.id_table = ehea_device_table,
+	.match_table = ehea_device_table,
 	.probe = ehea_probe_adapter,
 	.remove = ehea_remove,
 };
@@ -1044,7 +1044,7 @@ static int ehea_reg_interrupts(struct net_device *dev)
 	snprintf(port->int_aff_name, EHEA_IRQ_NAME_SIZE - 1, "%s-aff",
 		 dev->name);
 
-	ret = ibmebus_request_irq(NULL, port->qp_eq->attr.ist1,
+	ret = ibmebus_request_irq(port->qp_eq->attr.ist1,
 				  ehea_qp_aff_irq_handler,
 				  IRQF_DISABLED, port->int_aff_name, port);
 	if (ret) {
@@ -1062,7 +1062,7 @@ static int ehea_reg_interrupts(struct net_device *dev)
 		pr = &port->port_res[i];
 		snprintf(pr->int_send_name, EHEA_IRQ_NAME_SIZE - 1,
 			 "%s-queue%d", dev->name, i);
-		ret = ibmebus_request_irq(NULL, pr->eq->attr.ist1,
+		ret = ibmebus_request_irq(pr->eq->attr.ist1,
 					  ehea_recv_irq_handler,
 					  IRQF_DISABLED, pr->int_send_name,
 					  pr);
@@ -1083,11 +1083,11 @@ out:
 out_free_req:
 	while (--i >= 0) {
 		u32 ist = port->port_res[i].eq->attr.ist1;
-		ibmebus_free_irq(NULL, ist, &port->port_res[i]);
+		ibmebus_free_irq(ist, &port->port_res[i]);
 	}
 
 out_free_qpeq:
-	ibmebus_free_irq(NULL, port->qp_eq->attr.ist1, port);
+	ibmebus_free_irq(port->qp_eq->attr.ist1, port);
 	i = port->num_def_qps;
 
 	goto out;
@@ -1104,14 +1104,14 @@ static void ehea_free_interrupts(struct net_device *dev)
 
 	for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) {
 		pr = &port->port_res[i];
-		ibmebus_free_irq(NULL, pr->eq->attr.ist1, pr);
+		ibmebus_free_irq(pr->eq->attr.ist1, pr);
 		if (netif_msg_intr(port))
 			ehea_info("free send irq for res %d with handle 0x%X",
 				  i, pr->eq->attr.ist1);
 	}
 
 	/* associated events */
-	ibmebus_free_irq(NULL, port->qp_eq->attr.ist1, port);
+	ibmebus_free_irq(port->qp_eq->attr.ist1, port);
 	if (netif_msg_intr(port))
 		ehea_info("associated event interrupt for handle 0x%X freed",
 			  port->qp_eq->attr.ist1);
@@ -2832,7 +2832,7 @@ static struct device *ehea_register_port(struct ehea_port *port,
 	int ret;
 
 	port->ofdev.node = of_node_get(dn);
-	port->ofdev.dev.parent = &port->adapter->ebus_dev->ofdev.dev;
+	port->ofdev.dev.parent = &port->adapter->ofdev->dev;
 	port->ofdev.dev.bus = &ibmebus_bus_type;
 
 	sprintf(port->ofdev.dev.bus_id, "port%d", port_name_cnt++);
@@ -3011,7 +3011,7 @@ static int ehea_setup_ports(struct ehea_adapter *adapter)
 	const u32 *dn_log_port_id;
 	int i = 0;
 
-	lhea_dn = adapter->ebus_dev->ofdev.node;
+	lhea_dn = adapter->ofdev->node;
 	while ((eth_dn = of_get_next_child(lhea_dn, eth_dn))) {
 
 		dn_log_port_id = of_get_property(eth_dn, "ibm,hea-port-no",
@@ -3051,7 +3051,7 @@ static struct device_node *ehea_get_eth_dn(struct ehea_adapter *adapter,
 	struct device_node *eth_dn = NULL;
 	const u32 *dn_log_port_id;
 
-	lhea_dn = adapter->ebus_dev->ofdev.node;
+	lhea_dn = adapter->ofdev->node;
 	while ((eth_dn = of_get_next_child(lhea_dn, eth_dn))) {
 
 		dn_log_port_id = of_get_property(eth_dn, "ibm,hea-port-no",
@@ -3157,31 +3157,31 @@ static ssize_t ehea_remove_port(struct device *dev,
 static DEVICE_ATTR(probe_port, S_IWUSR, NULL, ehea_probe_port);
 static DEVICE_ATTR(remove_port, S_IWUSR, NULL, ehea_remove_port);
 
-int ehea_create_device_sysfs(struct ibmebus_dev *dev)
+int ehea_create_device_sysfs(struct of_device *dev)
 {
-	int ret = device_create_file(&dev->ofdev.dev, &dev_attr_probe_port);
+	int ret = device_create_file(&dev->dev, &dev_attr_probe_port);
 	if (ret)
 		goto out;
 
-	ret = device_create_file(&dev->ofdev.dev, &dev_attr_remove_port);
+	ret = device_create_file(&dev->dev, &dev_attr_remove_port);
 out:
 	return ret;
 }
 
-void ehea_remove_device_sysfs(struct ibmebus_dev *dev)
+void ehea_remove_device_sysfs(struct of_device *dev)
 {
-	device_remove_file(&dev->ofdev.dev, &dev_attr_probe_port);
-	device_remove_file(&dev->ofdev.dev, &dev_attr_remove_port);
+	device_remove_file(&dev->dev, &dev_attr_probe_port);
+	device_remove_file(&dev->dev, &dev_attr_remove_port);
 }
 
-static int __devinit ehea_probe_adapter(struct ibmebus_dev *dev,
+static int __devinit ehea_probe_adapter(struct of_device *dev,
 					const struct of_device_id *id)
 {
 	struct ehea_adapter *adapter;
 	const u64 *adapter_handle;
 	int ret;
 
-	if (!dev || !dev->ofdev.node) {
+	if (!dev || !dev->node) {
 		ehea_error("Invalid ibmebus device probed");
 		return -EINVAL;
 	}
@@ -3189,36 +3189,36 @@ static int __devinit ehea_probe_adapter(struct ibmebus_dev *dev,
 	adapter = kzalloc(sizeof(*adapter), GFP_KERNEL);
 	if (!adapter) {
 		ret = -ENOMEM;
-		dev_err(&dev->ofdev.dev, "no mem for ehea_adapter\n");
+		dev_err(&dev->dev, "no mem for ehea_adapter\n");
 		goto out;
 	}
 
 	list_add(&adapter->list, &adapter_list);
 
-	adapter->ebus_dev = dev;
+	adapter->ofdev = dev;
 
-	adapter_handle = of_get_property(dev->ofdev.node, "ibm,hea-handle",
+	adapter_handle = of_get_property(dev->node, "ibm,hea-handle",
 					 NULL);
 	if (adapter_handle)
 		adapter->handle = *adapter_handle;
 
 	if (!adapter->handle) {
-		dev_err(&dev->ofdev.dev, "failed getting handle for adapter"
-			" '%s'\n", dev->ofdev.node->full_name);
+		dev_err(&dev->dev, "failed getting handle for adapter"
+			" '%s'\n", dev->node->full_name);
 		ret = -ENODEV;
 		goto out_free_ad;
 	}
 
 	adapter->pd = EHEA_PD_ID;
 
-	dev->ofdev.dev.driver_data = adapter;
+	dev->dev.driver_data = adapter;
 
 
 	/* initialize adapter and ports */
 	/* get adapter properties */
 	ret = ehea_sense_adapter_attr(adapter);
 	if (ret) {
-		dev_err(&dev->ofdev.dev, "sense_adapter_attr failed: %d", ret);
+		dev_err(&dev->dev, "sense_adapter_attr failed: %d", ret);
 		goto out_free_ad;
 	}
 
@@ -3226,18 +3226,18 @@ static int __devinit ehea_probe_adapter(struct ibmebus_dev *dev,
 				      EHEA_NEQ, EHEA_MAX_ENTRIES_EQ, 1);
 	if (!adapter->neq) {
 		ret = -EIO;
-		dev_err(&dev->ofdev.dev, "NEQ creation failed");
+		dev_err(&dev->dev, "NEQ creation failed");
 		goto out_free_ad;
 	}
 
 	tasklet_init(&adapter->neq_tasklet, ehea_neq_tasklet,
 		     (unsigned long)adapter);
 
-	ret = ibmebus_request_irq(NULL, adapter->neq->attr.ist1,
+	ret = ibmebus_request_irq(adapter->neq->attr.ist1,
 				  ehea_interrupt_neq, IRQF_DISABLED,
 				  "ehea_neq", adapter);
 	if (ret) {
-		dev_err(&dev->ofdev.dev, "requesting NEQ IRQ failed");
+		dev_err(&dev->dev, "requesting NEQ IRQ failed");
 		goto out_kill_eq;
 	}
 
@@ -3247,7 +3247,7 @@ static int __devinit ehea_probe_adapter(struct ibmebus_dev *dev,
 
 	ret = ehea_setup_ports(adapter);
 	if (ret) {
-		dev_err(&dev->ofdev.dev, "setup_ports failed");
+		dev_err(&dev->dev, "setup_ports failed");
 		goto out_rem_dev_sysfs;
 	}
 
@@ -3258,7 +3258,7 @@ out_rem_dev_sysfs:
 	ehea_remove_device_sysfs(dev);
 
 out_free_irq:
-	ibmebus_free_irq(NULL, adapter->neq->attr.ist1, adapter);
+	ibmebus_free_irq(adapter->neq->attr.ist1, adapter);
 
 out_kill_eq:
 	ehea_destroy_eq(adapter->neq);
@@ -3269,9 +3269,9 @@ out:
 	return ret;
 }
 
-static int __devexit ehea_remove(struct ibmebus_dev *dev)
+static int __devexit ehea_remove(struct of_device *dev)
 {
-	struct ehea_adapter *adapter = dev->ofdev.dev.driver_data;
+	struct ehea_adapter *adapter = dev->dev.driver_data;
 	int i;
 
 	for (i = 0; i < EHEA_MAX_PORTS; i++)
@@ -3284,7 +3284,7 @@ static int __devexit ehea_remove(struct ibmebus_dev *dev)
 
 	flush_scheduled_work();
 
-	ibmebus_free_irq(NULL, adapter->neq->attr.ist1, adapter);
+	ibmebus_free_irq(adapter->neq->attr.ist1, adapter);
 	tasklet_kill(&adapter->neq_tasklet);
 
 	ehea_destroy_eq(adapter->neq);

include/asm-powerpc/cputable.h

@@ -165,6 +165,7 @@ extern void do_feature_fixups(unsigned long value, void *fixup_start,
 #define CPU_FTR_SPURR			LONG_ASM_CONST(0x0001000000000000)
 #define CPU_FTR_DSCR			LONG_ASM_CONST(0x0002000000000000)
 #define CPU_FTR_1T_SEGMENT		LONG_ASM_CONST(0x0004000000000000)
+#define CPU_FTR_NO_SLBIE_B		LONG_ASM_CONST(0x0008000000000000)
 
 #ifndef __ASSEMBLY__
 
@@ -367,7 +368,7 @@ extern void do_feature_fixups(unsigned long value, void *fixup_start,
 #define CPU_FTRS_PA6T (CPU_FTR_USE_TB | \
 	    CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | \
 	    CPU_FTR_ALTIVEC_COMP | CPU_FTR_CI_LARGE_PAGE | \
-	    CPU_FTR_PURR | CPU_FTR_REAL_LE)
+	    CPU_FTR_PURR | CPU_FTR_REAL_LE | CPU_FTR_NO_SLBIE_B)
 #define CPU_FTRS_COMPATIBLE	(CPU_FTR_USE_TB | \
 	    CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2)
 

include/asm-powerpc/ibmebus.h

@@ -43,42 +43,18 @@
 #include <linux/device.h>
 #include <linux/interrupt.h>
 #include <linux/mod_devicetable.h>
-#include <asm/of_device.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
 
 extern struct bus_type ibmebus_bus_type;
 
-struct ibmebus_dev {
-	struct of_device ofdev;
-};
+int ibmebus_register_driver(struct of_platform_driver *drv);
+void ibmebus_unregister_driver(struct of_platform_driver *drv);
 
-struct ibmebus_driver {
-	char *name;
-	struct of_device_id *id_table;
-	int (*probe) (struct ibmebus_dev *dev, const struct of_device_id *id);
-	int (*remove) (struct ibmebus_dev *dev);
-	struct device_driver driver;
-};
-
-int ibmebus_register_driver(struct ibmebus_driver *drv);
-void ibmebus_unregister_driver(struct ibmebus_driver *drv);
-
-int ibmebus_request_irq(struct ibmebus_dev *dev,
-			u32 ist,
-			irq_handler_t handler,
-			unsigned long irq_flags, const char * devname,
+int ibmebus_request_irq(u32 ist, irq_handler_t handler,
+			unsigned long irq_flags, const char *devname,
 			void *dev_id);
-void ibmebus_free_irq(struct ibmebus_dev *dev, u32 ist, void *dev_id);
-
-static inline struct ibmebus_driver *to_ibmebus_driver(struct device_driver *drv)
-{
-	return container_of(drv, struct ibmebus_driver, driver);
-}
-
-static inline struct ibmebus_dev *to_ibmebus_dev(struct device *dev)
-{
-	return container_of(dev, struct ibmebus_dev, ofdev.dev);
-}
-
+void ibmebus_free_irq(u32 ist, void *dev_id);
 
 #endif /* __KERNEL__ */
 #endif /* _ASM_IBMEBUS_H */

include/asm-powerpc/of_device.h

@@ -17,6 +17,10 @@ struct of_device
 	struct device		dev;		/* Generic device interface */
 };
 
+extern struct of_device *of_device_alloc(struct device_node *np,
+					 const char *bus_id,
+					 struct device *parent);
+
 extern ssize_t of_device_get_modalias(struct of_device *ofdev,
 					char *str, ssize_t len);
 extern int of_device_uevent(struct device *dev,

include/asm-ppc/mpc52xx_psc.h

@@ -28,6 +28,10 @@
 #define MPC52xx_PSC_MAXNUM	6
 
 /* Programmable Serial Controller (PSC) status register bits */
+#define MPC52xx_PSC_SR_UNEX_RX	0x0001
+#define MPC52xx_PSC_SR_DATA_VAL	0x0002
+#define MPC52xx_PSC_SR_DATA_OVR	0x0004
+#define MPC52xx_PSC_SR_CMDSEND	0x0008
 #define MPC52xx_PSC_SR_CDE	0x0080
 #define MPC52xx_PSC_SR_RXRDY	0x0100
 #define MPC52xx_PSC_SR_RXFULL	0x0200
@@ -132,8 +136,10 @@ struct mpc52xx_psc {
 	u8		reserved5[3];
 	u8		ctlr;		/* PSC + 0x1c */
 	u8		reserved6[3];
-	u16		ccr;		/* PSC + 0x20 */
-	u8		reserved7[14];
+	u32		ccr;		/* PSC + 0x20 */
+	u32		ac97_slots;	/* PSC + 0x24 */
+	u32		ac97_cmd;	/* PSC + 0x28 */
+	u32		ac97_data;	/* PSC + 0x2c */
 	u8		ivr;		/* PSC + 0x30 */
 	u8		reserved8[3];
 	u8		ip;		/* PSC + 0x34 */

include/linux/of_device.h

@@ -22,5 +22,10 @@ extern int of_device_register(struct of_device *ofdev);
 extern void of_device_unregister(struct of_device *ofdev);
 extern void of_release_dev(struct device *dev);
 
+static inline void of_device_free(struct of_device *dev)
+{
+	of_release_dev(&dev->dev);
+}
+
 #endif /* __KERNEL__ */
 #endif /* _LINUX_OF_DEVICE_H */