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@@ -14,6 +14,10 @@
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* ARM Ltd.
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* Philippe Robin, <philippe.robin@arm.com>
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*
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+ * (C) Copyright 2011
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+ * Linaro
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+ * Linus Walleij <linus.walleij@linaro.org>
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+ *
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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@@ -32,15 +36,53 @@
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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-
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#include <common.h>
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#include <pci.h>
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+#include <asm/io.h>
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+#include "integrator-sc.h"
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+#include "pci_v3.h"
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+
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+#define INTEGRATOR_BOOT_ROM_BASE 0x20000000
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+#define INTEGRATOR_HDR0_SDRAM_BASE 0x80000000
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+
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+/*
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+ * These are in the physical addresses on the CPU side, i.e.
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+ * where we read and write stuff - you don't want to try to
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+ * move these around
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+ */
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+#define PHYS_PCI_MEM_BASE 0x40000000
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+#define PHYS_PCI_IO_BASE 0x60000000 /* PCI I/O space base */
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+#define PHYS_PCI_CONFIG_BASE 0x61000000
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+#define PHYS_PCI_V3_BASE 0x62000000 /* V360EPC registers */
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+#define SZ_256M 0x10000000
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+
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+/*
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+ * These are in the PCI BUS address space
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+ * Set to 0x00000000 in the Linux kernel, 0x40000000 in Boot monitor
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+ * we follow the example of the kernel, because that is the address
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+ * range that devices actually use - what would they be doing at
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+ * 0x40000000?
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+ */
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+#define PCI_BUS_NONMEM_START 0x00000000
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+#define PCI_BUS_NONMEM_SIZE SZ_256M
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+
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+#define PCI_BUS_PREMEM_START (PCI_BUS_NONMEM_START + PCI_BUS_NONMEM_SIZE)
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+#define PCI_BUS_PREMEM_SIZE SZ_256M
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+
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+#if PCI_BUS_NONMEM_START & 0x000fffff
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+#error PCI_BUS_NONMEM_START must be megabyte aligned
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+#endif
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+#if PCI_BUS_PREMEM_START & 0x000fffff
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+#error PCI_BUS_PREMEM_START must be megabyte aligned
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+#endif
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/*
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* Initialize PCI Devices, report devices found.
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*/
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#ifndef CONFIG_PCI_PNP
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+#define PCI_ENET0_IOADDR 0x60000000 /* First card in PCI I/O space */
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+#define PCI_ENET0_MEMADDR 0x40000000 /* First card in PCI memory space */
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static struct pci_config_table pci_integrator_config_table[] = {
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{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x0f, PCI_ANY_ID,
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pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
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@@ -51,163 +93,187 @@ static struct pci_config_table pci_integrator_config_table[] = {
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#endif /* CONFIG_PCI_PNP */
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/* V3 access routines */
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-#define _V3Write16(o,v) (*(volatile unsigned short *)(PCI_V3_BASE + (unsigned int)(o)) = (unsigned short)(v))
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-#define _V3Read16(o) (*(volatile unsigned short *)(PCI_V3_BASE + (unsigned int)(o)))
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-
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-#define _V3Write32(o,v) (*(volatile unsigned int *)(PCI_V3_BASE + (unsigned int)(o)) = (unsigned int)(v))
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-#define _V3Read32(o) (*(volatile unsigned int *)(PCI_V3_BASE + (unsigned int)(o)))
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-
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-/* Compute address necessary to access PCI config space for the given */
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-/* bus and device. */
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-#define PCI_CONFIG_ADDRESS( __bus, __devfn, __offset ) ({ \
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- unsigned int __address, __devicebit; \
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- unsigned short __mapaddress; \
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- unsigned int __dev = PCI_DEV (__devfn); /* FIXME to check!! (slot?) */ \
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- \
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- if (__bus == 0) { \
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- /* local bus segment so need a type 0 config cycle */ \
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- /* build the PCI configuration "address" with one-hot in A31-A11 */ \
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- __address = PCI_CONFIG_BASE; \
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- __address |= ((__devfn & 0x07) << 8); \
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- __address |= __offset & 0xFF; \
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- __mapaddress = 0x000A; /* 101=>config cycle, 0=>A1=A0=0 */ \
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- __devicebit = (1 << (__dev + 11)); \
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- \
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- if ((__devicebit & 0xFF000000) != 0) { \
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- /* high order bits are handled by the MAP register */ \
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- __mapaddress |= (__devicebit >> 16); \
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- } else { \
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- /* low order bits handled directly in the address */ \
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- __address |= __devicebit; \
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- } \
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- } else { /* bus !=0 */ \
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- /* not the local bus segment so need a type 1 config cycle */ \
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- /* A31-A24 are don't care (so clear to 0) */ \
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- __mapaddress = 0x000B; /* 101=>config cycle, 1=>A1&A0 from PCI_CFG */ \
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- __address = PCI_CONFIG_BASE; \
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- __address |= ((__bus & 0xFF) << 16); /* bits 23..16 = bus number */ \
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- __address |= ((__dev & 0x1F) << 11); /* bits 15..11 = device number */ \
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- __address |= ((__devfn & 0x07) << 8); /* bits 10..8 = function number */ \
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- __address |= __offset & 0xFF; /* bits 7..0 = register number */ \
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- } \
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- _V3Write16 (V3_LB_MAP1, __mapaddress); \
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- __address; \
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-})
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-
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-/* _V3OpenConfigWindow - open V3 configuration window */
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-#define _V3OpenConfigWindow() { \
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- /* Set up base0 to see all 512Mbytes of memory space (not */ \
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- /* prefetchable), this frees up base1 for re-use by configuration*/ \
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- /* memory */ \
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- \
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- _V3Write32 (V3_LB_BASE0, ((INTEGRATOR_PCI_BASE & 0xFFF00000) | \
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- 0x90 | V3_LB_BASE_M_ENABLE)); \
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- /* Set up base1 to point into configuration space, note that MAP1 */ \
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- /* register is set up by pciMakeConfigAddress(). */ \
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- \
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- _V3Write32 (V3_LB_BASE1, ((CPU_PCI_CNFG_ADRS & 0xFFF00000) | \
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- 0x40 | V3_LB_BASE_M_ENABLE)); \
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+#define v3_writeb(o, v) __raw_writeb(v, PHYS_PCI_V3_BASE + (unsigned int)(o))
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+#define v3_readb(o) (__raw_readb(PHYS_PCI_V3_BASE + (unsigned int)(o)))
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+
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+#define v3_writew(o, v) __raw_writew(v, PHYS_PCI_V3_BASE + (unsigned int)(o))
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+#define v3_readw(o) (__raw_readw(PHYS_PCI_V3_BASE + (unsigned int)(o)))
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+
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+#define v3_writel(o, v) __raw_writel(v, PHYS_PCI_V3_BASE + (unsigned int)(o))
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+#define v3_readl(o) (__raw_readl(PHYS_PCI_V3_BASE + (unsigned int)(o)))
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+
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+static unsigned long v3_open_config_window(pci_dev_t bdf, int offset)
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+{
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+ unsigned int address, mapaddress;
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+ unsigned int busnr = PCI_BUS(bdf);
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+ unsigned int devfn = PCI_FUNC(bdf);
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+
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+ /*
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+ * Trap out illegal values
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+ */
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+ if (offset > 255)
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+ BUG();
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+ if (busnr > 255)
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+ BUG();
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+ if (devfn > 255)
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+ BUG();
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+
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+ if (busnr == 0) {
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+ /*
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+ * Linux calls the thing U-Boot calls "DEV" "SLOT"
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+ * instead, but it's the same 5 bits
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+ */
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+ int slot = PCI_DEV(bdf);
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+
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+ /*
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+ * local bus segment so need a type 0 config cycle
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+ *
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+ * build the PCI configuration "address" with one-hot in
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+ * A31-A11
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+ *
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+ * mapaddress:
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+ * 3:1 = config cycle (101)
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+ * 0 = PCI A1 & A0 are 0 (0)
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+ */
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+ address = PCI_FUNC(bdf) << 8;
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+ mapaddress = V3_LB_MAP_TYPE_CONFIG;
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+
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+ if (slot > 12)
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+ /*
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+ * high order bits are handled by the MAP register
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+ */
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+ mapaddress |= 1 << (slot - 5);
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+ else
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+ /*
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+ * low order bits handled directly in the address
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+ */
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+ address |= 1 << (slot + 11);
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+ } else {
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+ /*
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+ * not the local bus segment so need a type 1 config cycle
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+ *
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+ * address:
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+ * 23:16 = bus number
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+ * 15:11 = slot number (7:3 of devfn)
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+ * 10:8 = func number (2:0 of devfn)
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+ *
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+ * mapaddress:
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+ * 3:1 = config cycle (101)
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+ * 0 = PCI A1 & A0 from host bus (1)
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+ */
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+ mapaddress = V3_LB_MAP_TYPE_CONFIG | V3_LB_MAP_AD_LOW_EN;
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+ address = (busnr << 16) | (devfn << 8);
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+ }
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+
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+ /*
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+ * Set up base0 to see all 512Mbytes of memory space (not
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+ * prefetchable), this frees up base1 for re-use by
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+ * configuration memory
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+ */
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+ v3_writel(V3_LB_BASE0, v3_addr_to_lb_base(PHYS_PCI_MEM_BASE) |
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+ V3_LB_BASE_ADR_SIZE_512MB | V3_LB_BASE_ENABLE);
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+
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+ /*
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+ * Set up base1/map1 to point into configuration space.
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+ */
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+ v3_writel(V3_LB_BASE1, v3_addr_to_lb_base(PHYS_PCI_CONFIG_BASE) |
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+ V3_LB_BASE_ADR_SIZE_16MB | V3_LB_BASE_ENABLE);
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+ v3_writew(V3_LB_MAP1, mapaddress);
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+
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+ return PHYS_PCI_CONFIG_BASE + address + offset;
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}
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-/* _V3CloseConfigWindow - close V3 configuration window */
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-#define _V3CloseConfigWindow() { \
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- /* Reassign base1 for use by prefetchable PCI memory */ \
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- _V3Write32 (V3_LB_BASE1, (((INTEGRATOR_PCI_BASE + 0x10000000) & 0xFFF00000) \
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- | 0x84 | V3_LB_BASE_M_ENABLE)); \
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- _V3Write16 (V3_LB_MAP1, \
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- (((INTEGRATOR_PCI_BASE + 0x10000000) & 0xFFF00000) >> 16) | 0x0006); \
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- \
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- /* And shrink base0 back to a 256M window (NOTE: MAP0 already correct) */ \
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- \
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- _V3Write32 (V3_LB_BASE0, ((INTEGRATOR_PCI_BASE & 0xFFF00000) | \
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- 0x80 | V3_LB_BASE_M_ENABLE)); \
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+static void v3_close_config_window(void)
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+{
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+ /*
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+ * Reassign base1 for use by prefetchable PCI memory
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+ */
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+ v3_writel(V3_LB_BASE1, v3_addr_to_lb_base(PHYS_PCI_MEM_BASE + SZ_256M) |
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+ V3_LB_BASE_ADR_SIZE_256MB | V3_LB_BASE_PREFETCH |
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+ V3_LB_BASE_ENABLE);
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+ v3_writew(V3_LB_MAP1, v3_addr_to_lb_map(PCI_BUS_PREMEM_START) |
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+ V3_LB_MAP_TYPE_MEM_MULTIPLE);
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+
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+ /*
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+ * And shrink base0 back to a 256M window (NOTE: MAP0 already correct)
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+ */
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+ v3_writel(V3_LB_BASE0, v3_addr_to_lb_base(PHYS_PCI_MEM_BASE) |
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+ V3_LB_BASE_ADR_SIZE_256MB | V3_LB_BASE_ENABLE);
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}
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-static int pci_integrator_read_byte (struct pci_controller *hose, pci_dev_t dev,
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- int offset, unsigned char *val)
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+static int pci_integrator_read_byte(struct pci_controller *hose, pci_dev_t bdf,
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+ int offset, unsigned char *val)
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{
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- _V3OpenConfigWindow ();
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- *val = *(volatile unsigned char *) PCI_CONFIG_ADDRESS (PCI_BUS (dev),
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- PCI_FUNC (dev),
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- offset);
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- _V3CloseConfigWindow ();
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+ unsigned long addr;
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+ addr = v3_open_config_window(bdf, offset);
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+ *val = __raw_readb(addr);
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+ v3_close_config_window();
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return 0;
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}
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-static int pci_integrator_read__word (struct pci_controller *hose,
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- pci_dev_t dev, int offset,
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- unsigned short *val)
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+static int pci_integrator_read__word(struct pci_controller *hose,
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+ pci_dev_t bdf, int offset,
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+ unsigned short *val)
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{
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- _V3OpenConfigWindow ();
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- *val = *(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev),
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- PCI_FUNC (dev),
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- offset);
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- _V3CloseConfigWindow ();
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+ unsigned long addr;
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+ addr = v3_open_config_window(bdf, offset);
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+ *val = __raw_readw(addr);
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+ v3_close_config_window();
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return 0;
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}
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-static int pci_integrator_read_dword (struct pci_controller *hose,
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- pci_dev_t dev, int offset,
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- unsigned int *val)
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+static int pci_integrator_read_dword(struct pci_controller *hose,
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+ pci_dev_t bdf, int offset,
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+ unsigned int *val)
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{
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- _V3OpenConfigWindow ();
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- *val = *(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev),
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- PCI_FUNC (dev),
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- offset);
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- *val |= (*(volatile unsigned int *)
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- PCI_CONFIG_ADDRESS (PCI_BUS (dev), PCI_FUNC (dev),
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- (offset + 2))) << 16;
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- _V3CloseConfigWindow ();
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+ unsigned long addr;
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+ addr = v3_open_config_window(bdf, offset);
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+ *val = __raw_readl(addr);
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+ v3_close_config_window();
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return 0;
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}
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-static int pci_integrator_write_byte (struct pci_controller *hose,
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- pci_dev_t dev, int offset,
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- unsigned char val)
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+static int pci_integrator_write_byte(struct pci_controller *hose,
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+ pci_dev_t bdf, int offset,
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+ unsigned char val)
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{
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- _V3OpenConfigWindow ();
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- *(volatile unsigned char *) PCI_CONFIG_ADDRESS (PCI_BUS (dev),
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- PCI_FUNC (dev),
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- offset) = val;
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- _V3CloseConfigWindow ();
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+ unsigned long addr;
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+ addr = v3_open_config_window(bdf, offset);
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+ __raw_writeb((u8)val, addr);
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+ __raw_readb(addr);
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+ v3_close_config_window();
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return 0;
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}
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-static int pci_integrator_write_word (struct pci_controller *hose,
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- pci_dev_t dev, int offset,
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- unsigned short val)
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+static int pci_integrator_write_word(struct pci_controller *hose,
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+ pci_dev_t bdf, int offset,
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+ unsigned short val)
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{
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- _V3OpenConfigWindow ();
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- *(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev),
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- PCI_FUNC (dev),
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- offset) = val;
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- _V3CloseConfigWindow ();
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+ unsigned long addr;
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+ addr = v3_open_config_window(bdf, offset);
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+ __raw_writew((u8)val, addr);
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+ __raw_readw(addr);
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+ v3_close_config_window();
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return 0;
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}
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-static int pci_integrator_write_dword (struct pci_controller *hose,
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- pci_dev_t dev, int offset,
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- unsigned int val)
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+static int pci_integrator_write_dword(struct pci_controller *hose,
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+ pci_dev_t bdf, int offset,
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+ unsigned int val)
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{
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- _V3OpenConfigWindow ();
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- *(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev),
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- PCI_FUNC (dev),
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- offset) = (val & 0xFFFF);
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- *(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev),
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- PCI_FUNC (dev),
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- (offset + 2)) = ((val >> 16) & 0xFFFF);
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- _V3CloseConfigWindow ();
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+ unsigned long addr;
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+ addr = v3_open_config_window(bdf, offset);
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+ __raw_writel((u8)val, addr);
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+ __raw_readl(addr);
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+ v3_close_config_window();
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return 0;
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}
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-/******************************
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- * PCI initialisation
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- ******************************/
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struct pci_controller integrator_hose = {
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#ifndef CONFIG_PCI_PNP
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@@ -215,182 +281,198 @@ struct pci_controller integrator_hose = {
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#endif
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};
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-void pci_init_board (void)
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+void pci_init_board(void)
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{
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volatile int i, j;
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struct pci_controller *hose = &integrator_hose;
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+ u16 val;
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/* setting this register will take the V3 out of reset */
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-
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- *(volatile unsigned int *) (INTEGRATOR_SC_PCIENABLE) = 1;
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+ __raw_writel(SC_PCI_PCIEN, SC_PCI);
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/* wait a few usecs to settle the device and the PCI bus */
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for (i = 0; i < 100; i++)
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j = i + 1;
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- /* Now write the Base I/O Address Word to V3_BASE + 0x6C */
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-
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- *(volatile unsigned short *) (V3_BASE + V3_LB_IO_BASE) =
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- (unsigned short) (V3_BASE >> 16);
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+ /* Now write the Base I/O Address Word to PHYS_PCI_V3_BASE + 0x6E */
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+ v3_writew(V3_LB_IO_BASE, (PHYS_PCI_V3_BASE >> 16));
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+ /* Wait for the mailbox to settle */
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do {
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- *(volatile unsigned char *) (V3_BASE + V3_MAIL_DATA) = 0xAA;
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- *(volatile unsigned char *) (V3_BASE + V3_MAIL_DATA + 4) =
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- 0x55;
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- } while (*(volatile unsigned char *) (V3_BASE + V3_MAIL_DATA) != 0xAA
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- || *(volatile unsigned char *) (V3_BASE + V3_MAIL_DATA +
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- 4) != 0x55);
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+ v3_writeb(V3_MAIL_DATA, 0xAA);
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+ v3_writeb(V3_MAIL_DATA + 4, 0x55);
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+ } while (v3_readb(V3_MAIL_DATA) != 0xAA ||
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+ v3_readb(V3_MAIL_DATA + 4) != 0x55);
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/* Make sure that V3 register access is not locked, if it is, unlock it */
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+ if (v3_readw(V3_SYSTEM) & V3_SYSTEM_M_LOCK)
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+ v3_writew(V3_SYSTEM, 0xA05F);
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- if ((*(volatile unsigned short *) (V3_BASE + V3_SYSTEM) &
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- V3_SYSTEM_M_LOCK)
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- == V3_SYSTEM_M_LOCK)
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- *(volatile unsigned short *) (V3_BASE + V3_SYSTEM) = 0xA05F;
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-
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- /* Ensure that the slave accesses from PCI are disabled while we */
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- /* setup windows */
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-
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- *(volatile unsigned short *) (V3_BASE + V3_PCI_CMD) &=
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- ~(V3_COMMAND_M_MEM_EN | V3_COMMAND_M_IO_EN);
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+ /*
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+ * Ensure that the slave accesses from PCI are disabled while we
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+ * setup memory windows
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+ */
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+ val = v3_readw(V3_PCI_CMD);
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+ val &= ~(V3_COMMAND_M_MEM_EN | V3_COMMAND_M_IO_EN);
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+ v3_writew(V3_PCI_CMD, val);
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/* Clear RST_OUT to 0; keep the PCI bus in reset until we've finished */
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-
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- *(volatile unsigned short *) (V3_BASE + V3_SYSTEM) &=
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- ~V3_SYSTEM_M_RST_OUT;
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+ val = v3_readw(V3_SYSTEM);
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+ val &= ~V3_SYSTEM_M_RST_OUT;
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+ v3_writew(V3_SYSTEM, val);
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/* Make all accesses from PCI space retry until we're ready for them */
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+ val = v3_readw(V3_PCI_CFG);
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+ val |= V3_PCI_CFG_M_RETRY_EN;
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+ v3_writew(V3_PCI_CFG, val);
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- *(volatile unsigned short *) (V3_BASE + V3_PCI_CFG) |=
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- V3_PCI_CFG_M_RETRY_EN;
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-
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- /* Set up any V3 PCI Configuration Registers that we absolutely have to */
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- /* LB_CFG controls Local Bus protocol. */
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- /* Enable LocalBus byte strobes for READ accesses too. */
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- /* set bit 7 BE_IMODE and bit 6 BE_OMODE */
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-
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- *(volatile unsigned short *) (V3_BASE + V3_LB_CFG) |= 0x0C0;
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-
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- /* PCI_CMD controls overall PCI operation. */
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- /* Enable PCI bus master. */
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-
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- *(volatile unsigned short *) (V3_BASE + V3_PCI_CMD) |= 0x04;
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|
+ /*
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|
|
+ * Set up any V3 PCI Configuration Registers that we absolutely have to.
|
|
|
+ * LB_CFG controls Local Bus protocol.
|
|
|
+ * Enable LocalBus byte strobes for READ accesses too.
|
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+ * set bit 7 BE_IMODE and bit 6 BE_OMODE
|
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|
+ */
|
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|
+ val = v3_readw(V3_LB_CFG);
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|
+ val |= 0x0C0;
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|
|
+ v3_writew(V3_LB_CFG, val);
|
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|
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- /* PCI_MAP0 controls where the PCI to CPU memory window is on Local Bus */
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|
+ /* PCI_CMD controls overall PCI operation. Enable PCI bus master. */
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|
|
+ val = v3_readw(V3_PCI_CMD);
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|
|
+ val |= V3_COMMAND_M_MASTER_EN;
|
|
|
+ v3_writew(V3_PCI_CMD, val);
|
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|
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|
|
- *(volatile unsigned int *) (V3_BASE + V3_PCI_MAP0) =
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- (INTEGRATOR_BOOT_ROM_BASE) | (V3_PCI_MAP_M_ADR_SIZE_512M |
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|
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- V3_PCI_MAP_M_REG_EN |
|
|
|
- V3_PCI_MAP_M_ENABLE);
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+ /*
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|
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+ * PCI_MAP0 controls where the PCI to CPU memory window is on
|
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|
+ * Local Bus
|
|
|
+ */
|
|
|
+ v3_writel(V3_PCI_MAP0,
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|
+ (INTEGRATOR_BOOT_ROM_BASE) | (V3_PCI_MAP_M_ADR_SIZE_512MB |
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|
|
+ V3_PCI_MAP_M_REG_EN |
|
|
|
+ V3_PCI_MAP_M_ENABLE));
|
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|
|
|
|
/* PCI_BASE0 is the PCI address of the start of the window */
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|
-
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|
|
- *(volatile unsigned int *) (V3_BASE + V3_PCI_BASE0) =
|
|
|
- INTEGRATOR_BOOT_ROM_BASE;
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|
|
+ v3_writel(V3_PCI_BASE0, INTEGRATOR_BOOT_ROM_BASE);
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|
|
/* PCI_MAP1 is LOCAL address of the start of the window */
|
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|
-
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|
|
- *(volatile unsigned int *) (V3_BASE + V3_PCI_MAP1) =
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- (INTEGRATOR_HDR0_SDRAM_BASE) | (V3_PCI_MAP_M_ADR_SIZE_1024M |
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|
|
- V3_PCI_MAP_M_REG_EN |
|
|
|
- V3_PCI_MAP_M_ENABLE);
|
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|
+ v3_writel(V3_PCI_MAP1,
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|
+ (INTEGRATOR_HDR0_SDRAM_BASE) | (V3_PCI_MAP_M_ADR_SIZE_1GB |
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|
|
+ V3_PCI_MAP_M_REG_EN |
|
|
|
+ V3_PCI_MAP_M_ENABLE));
|
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|
|
|
|
/* PCI_BASE1 is the PCI address of the start of the window */
|
|
|
+ v3_writel(V3_PCI_BASE1, INTEGRATOR_HDR0_SDRAM_BASE);
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|
|
|
|
- *(volatile unsigned int *) (V3_BASE + V3_PCI_BASE1) =
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|
|
- INTEGRATOR_HDR0_SDRAM_BASE;
|
|
|
-
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|
|
- /* Set up the windows from local bus memory into PCI configuration, */
|
|
|
- /* I/O and Memory. */
|
|
|
- /* PCI I/O, LB_BASE2 and LB_MAP2 are used exclusively for this. */
|
|
|
-
|
|
|
- *(volatile unsigned short *) (V3_BASE + V3_LB_BASE2) =
|
|
|
- ((CPU_PCI_IO_ADRS >> 24) << 8) | V3_LB_BASE_M_ENABLE;
|
|
|
- *(volatile unsigned short *) (V3_BASE + V3_LB_MAP2) = 0;
|
|
|
+ /*
|
|
|
+ * Set up memory the windows from local bus memory into PCI
|
|
|
+ * configuration, I/O and Memory regions.
|
|
|
+ * PCI I/O, LB_BASE2 and LB_MAP2 are used exclusively for this.
|
|
|
+ */
|
|
|
+ v3_writew(V3_LB_BASE2,
|
|
|
+ v3_addr_to_lb_map(PHYS_PCI_IO_BASE) | V3_LB_BASE_ENABLE);
|
|
|
+ v3_writew(V3_LB_MAP2, 0);
|
|
|
|
|
|
/* PCI Configuration, use LB_BASE1/LB_MAP1. */
|
|
|
|
|
|
- /* PCI Memory use LB_BASE0/LB_MAP0 and LB_BASE1/LB_MAP1 */
|
|
|
- /* Map first 256Mbytes as non-prefetchable via BASE0/MAP0 */
|
|
|
- /* (INTEGRATOR_PCI_BASE == PCI_MEM_BASE) */
|
|
|
-
|
|
|
- *(volatile unsigned int *) (V3_BASE + V3_LB_BASE0) =
|
|
|
- INTEGRATOR_PCI_BASE | (0x80 | V3_LB_BASE_M_ENABLE);
|
|
|
-
|
|
|
- *(volatile unsigned short *) (V3_BASE + V3_LB_MAP0) =
|
|
|
- ((INTEGRATOR_PCI_BASE >> 20) << 0x4) | 0x0006;
|
|
|
+ /*
|
|
|
+ * PCI Memory use LB_BASE0/LB_MAP0 and LB_BASE1/LB_MAP1
|
|
|
+ * Map first 256Mbytes as non-prefetchable via BASE0/MAP0
|
|
|
+ */
|
|
|
+ v3_writel(V3_LB_BASE0, v3_addr_to_lb_base(PHYS_PCI_MEM_BASE) |
|
|
|
+ V3_LB_BASE_ADR_SIZE_256MB | V3_LB_BASE_ENABLE);
|
|
|
+ v3_writew(V3_LB_MAP0,
|
|
|
+ v3_addr_to_lb_map(PCI_BUS_NONMEM_START) | V3_LB_MAP_TYPE_MEM);
|
|
|
|
|
|
/* Map second 256 Mbytes as prefetchable via BASE1/MAP1 */
|
|
|
+ v3_writel(V3_LB_BASE1, v3_addr_to_lb_base(PHYS_PCI_MEM_BASE + SZ_256M) |
|
|
|
+ V3_LB_BASE_ADR_SIZE_256MB | V3_LB_BASE_PREFETCH |
|
|
|
+ V3_LB_BASE_ENABLE);
|
|
|
+ v3_writew(V3_LB_MAP1, v3_addr_to_lb_map(PCI_BUS_PREMEM_START) |
|
|
|
+ V3_LB_MAP_TYPE_MEM_MULTIPLE);
|
|
|
+
|
|
|
+ /* Dump PCI to local address space mappings */
|
|
|
+ debug("LB_BASE0 = %08x\n", v3_readl(V3_LB_BASE0));
|
|
|
+ debug("LB_MAP0 = %04x\n", v3_readw(V3_LB_MAP0));
|
|
|
+ debug("LB_BASE1 = %08x\n", v3_readl(V3_LB_BASE1));
|
|
|
+ debug("LB_MAP1 = %04x\n", v3_readw(V3_LB_MAP1));
|
|
|
+ debug("LB_BASE2 = %04x\n", v3_readw(V3_LB_BASE2));
|
|
|
+ debug("LB_MAP2 = %04x\n", v3_readw(V3_LB_MAP2));
|
|
|
+ debug("LB_IO_BASE = %04x\n", v3_readw(V3_LB_IO_BASE));
|
|
|
|
|
|
- *(volatile unsigned int *) (V3_BASE + V3_LB_BASE1) =
|
|
|
- INTEGRATOR_PCI_BASE | (0x84 | V3_LB_BASE_M_ENABLE);
|
|
|
-
|
|
|
- *(volatile unsigned short *) (V3_BASE + V3_LB_MAP1) =
|
|
|
- (((INTEGRATOR_PCI_BASE + 0x10000000) >> 20) << 4) | 0x0006;
|
|
|
-
|
|
|
- /* Allow accesses to PCI Configuration space */
|
|
|
- /* and set up A1, A0 for type 1 config cycles */
|
|
|
-
|
|
|
- *(volatile unsigned short *) (V3_BASE + V3_PCI_CFG) =
|
|
|
- ((*(volatile unsigned short *) (V3_BASE + V3_PCI_CFG)) &
|
|
|
- ~(V3_PCI_CFG_M_RETRY_EN | V3_PCI_CFG_M_AD_LOW1)) |
|
|
|
- V3_PCI_CFG_M_AD_LOW0;
|
|
|
-
|
|
|
- /* now we can allow in PCI MEMORY accesses */
|
|
|
-
|
|
|
- *(volatile unsigned short *) (V3_BASE + V3_PCI_CMD) =
|
|
|
- (*(volatile unsigned short *) (V3_BASE + V3_PCI_CMD)) |
|
|
|
- V3_COMMAND_M_MEM_EN;
|
|
|
+ /*
|
|
|
+ * Allow accesses to PCI Configuration space and set up A1, A0 for
|
|
|
+ * type 1 config cycles
|
|
|
+ */
|
|
|
+ val = v3_readw(V3_PCI_CFG);
|
|
|
+ val &= ~(V3_PCI_CFG_M_RETRY_EN | V3_PCI_CFG_M_AD_LOW1);
|
|
|
+ val |= V3_PCI_CFG_M_AD_LOW0;
|
|
|
+ v3_writew(V3_PCI_CFG, val);
|
|
|
|
|
|
- /* Set RST_OUT to take the PCI bus is out of reset, PCI devices can */
|
|
|
- /* initialise and lock the V3 system register so that no one else */
|
|
|
- /* can play with it */
|
|
|
+ /* now we can allow incoming PCI MEMORY accesses */
|
|
|
+ val = v3_readw(V3_PCI_CMD);
|
|
|
+ val |= V3_COMMAND_M_MEM_EN;
|
|
|
+ v3_writew(V3_PCI_CMD, val);
|
|
|
|
|
|
- *(volatile unsigned short *) (V3_BASE + V3_SYSTEM) =
|
|
|
- (*(volatile unsigned short *) (V3_BASE + V3_SYSTEM)) |
|
|
|
- V3_SYSTEM_M_RST_OUT;
|
|
|
+ /*
|
|
|
+ * Set RST_OUT to take the PCI bus is out of reset, PCI devices can
|
|
|
+ * now initialise.
|
|
|
+ */
|
|
|
+ val = v3_readw(V3_SYSTEM);
|
|
|
+ val |= V3_SYSTEM_M_RST_OUT;
|
|
|
+ v3_writew(V3_SYSTEM, val);
|
|
|
|
|
|
- *(volatile unsigned short *) (V3_BASE + V3_SYSTEM) =
|
|
|
- (*(volatile unsigned short *) (V3_BASE + V3_SYSTEM)) |
|
|
|
- V3_SYSTEM_M_LOCK;
|
|
|
+ /* Lock the V3 system register so that no one else can play with it */
|
|
|
+ val = v3_readw(V3_SYSTEM);
|
|
|
+ val |= V3_SYSTEM_M_LOCK;
|
|
|
+ v3_writew(V3_SYSTEM, val);
|
|
|
|
|
|
/*
|
|
|
- * Register the hose
|
|
|
+ * Configure and register the PCI hose
|
|
|
*/
|
|
|
hose->first_busno = 0;
|
|
|
hose->last_busno = 0xff;
|
|
|
|
|
|
- /* System memory space */
|
|
|
- pci_set_region (hose->regions + 0,
|
|
|
- 0x00000000, 0x40000000, 0x01000000,
|
|
|
- PCI_REGION_MEM | PCI_REGION_SYS_MEMORY);
|
|
|
+ /* System memory space, window 0 256 MB non-prefetchable */
|
|
|
+ pci_set_region(hose->regions + 0,
|
|
|
+ PCI_BUS_NONMEM_START, PHYS_PCI_MEM_BASE,
|
|
|
+ SZ_256M,
|
|
|
+ PCI_REGION_MEM);
|
|
|
|
|
|
- /* PCI Memory - config space */
|
|
|
- pci_set_region (hose->regions + 1,
|
|
|
- 0x00000000, 0x62000000, 0x01000000, PCI_REGION_MEM);
|
|
|
-
|
|
|
- /* PCI V3 regs */
|
|
|
- pci_set_region (hose->regions + 2,
|
|
|
- 0x00000000, 0x61000000, 0x00080000, PCI_REGION_MEM);
|
|
|
+ /* System memory space, window 1 256 MB prefetchable */
|
|
|
+ pci_set_region(hose->regions + 1,
|
|
|
+ PCI_BUS_PREMEM_START, PHYS_PCI_MEM_BASE + SZ_256M,
|
|
|
+ SZ_256M,
|
|
|
+ PCI_REGION_MEM |
|
|
|
+ PCI_REGION_PREFETCH);
|
|
|
|
|
|
/* PCI I/O space */
|
|
|
- pci_set_region (hose->regions + 3,
|
|
|
- 0x00000000, 0x60000000, 0x00010000, PCI_REGION_IO);
|
|
|
+ pci_set_region(hose->regions + 2,
|
|
|
+ 0x00000000, PHYS_PCI_IO_BASE, 0x01000000,
|
|
|
+ PCI_REGION_IO);
|
|
|
+
|
|
|
+ /* PCI Memory - config space */
|
|
|
+ pci_set_region(hose->regions + 3,
|
|
|
+ 0x00000000, PHYS_PCI_CONFIG_BASE, 0x01000000,
|
|
|
+ PCI_REGION_MEM);
|
|
|
+ /* PCI V3 regs */
|
|
|
+ pci_set_region(hose->regions + 4,
|
|
|
+ 0x00000000, PHYS_PCI_V3_BASE, 0x01000000,
|
|
|
+ PCI_REGION_MEM);
|
|
|
|
|
|
- pci_set_ops (hose,
|
|
|
- pci_integrator_read_byte,
|
|
|
- pci_integrator_read__word,
|
|
|
- pci_integrator_read_dword,
|
|
|
- pci_integrator_write_byte,
|
|
|
- pci_integrator_write_word, pci_integrator_write_dword);
|
|
|
+ hose->region_count = 5;
|
|
|
|
|
|
- hose->region_count = 4;
|
|
|
+ pci_set_ops(hose,
|
|
|
+ pci_integrator_read_byte,
|
|
|
+ pci_integrator_read__word,
|
|
|
+ pci_integrator_read_dword,
|
|
|
+ pci_integrator_write_byte,
|
|
|
+ pci_integrator_write_word,
|
|
|
+ pci_integrator_write_dword);
|
|
|
|
|
|
- pci_register_hose (hose);
|
|
|
+ pci_register_hose(hose);
|
|
|
|
|
|
- pciauto_config_init (hose);
|
|
|
- pciauto_config_device (hose, 0);
|
|
|
+ pciauto_config_init(hose);
|
|
|
+ pciauto_config_device(hose, 0);
|
|
|
|
|
|
- hose->last_busno = pci_hose_scan (hose);
|
|
|
+ hose->last_busno = pci_hose_scan(hose);
|
|
|
}
|