Make MPC8641's PCI/PCI-E driver a common driver for many FSL parts.

All of the PCI/PCI-Express driver and initialization code that
was in the MPC8641HPCN port has now been moved into the common
drivers/fsl_pci_init.c.  In a subsequent patch, this will be
utilized by the 85xx ports as well.

Common PCI-E IMMAP register blocks for FSL 85xx/86xx are added.

Also enable the second PCI-Express controller on 8641
by getting its BATS and CFG_ setup right.

Fixed a u16 vendor compiler warning in AHCI driver too.

Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com>
Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Signed-off-by: Jon Loeliger <jdl@freescale.com>

board/mpc8641hpcn/mpc8641hpcn.c

@@ -11,7 +11,7 @@
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
@@ -24,6 +24,7 @@
 #include <pci.h>
 #include <asm/processor.h>
 #include <asm/immap_86xx.h>
+#include <asm/immap_fsl_pci.h>
 #include <spd.h>
 #include <asm/io.h>
 
@@ -55,37 +56,6 @@ int checkboard(void)
 {
 	puts("Board: MPC8641HPCN\n");
 
-#ifdef CONFIG_PCI
-
-	volatile immap_t *immap = (immap_t *) CFG_CCSRBAR;
-	volatile ccsr_gur_t *gur = &immap->im_gur;
-	volatile ccsr_pex_t *pex1 = &immap->im_pex1;
-
-	uint devdisr = gur->devdisr;
-	uint io_sel = (gur->pordevsr & MPC86xx_PORDEVSR_IO_SEL) >> 16;
-#ifdef DEBUG
-	uint host1_agent = (gur->porbmsr & MPC86xx_PORBMSR_HA) >> 17;
-	uint pex1_agent = (host1_agent == 0) || (host1_agent == 1);
-#endif
-	if ((io_sel == 2 || io_sel == 3 || io_sel == 5
-	     || io_sel == 6 || io_sel == 7 || io_sel == 0xF)
-	    && !(devdisr & MPC86xx_DEVDISR_PCIEX1)) {
-		debug("PCI-EXPRESS 1: %s \n", pex1_agent ? "Agent" : "Host");
-		debug("0x%08x=0x%08x ", &pex1->pme_msg_det, pex1->pme_msg_det);
-		if (pex1->pme_msg_det) {
-			pex1->pme_msg_det = 0xffffffff;
-			debug(" with errors.  Clearing.  Now 0x%08x",
-			      pex1->pme_msg_det);
-		}
-		debug("\n");
-	} else {
-		puts("PCI-EXPRESS 1: Disabled\n");
-	}
-
-#else
-	puts("PCI-EXPRESS1: Disabled\n");
-#endif
-
 	return 0;
 }
 
@@ -220,21 +190,138 @@ static struct pci_config_table pci_fsl86xxads_config_table[] = {
 #endif
 
 
-static struct pci_controller hose = {
+static struct pci_controller pci1_hose = {
 #ifndef CONFIG_PCI_PNP
-      config_table:pci_mpc86xxcts_config_table,
+	config_table:pci_mpc86xxcts_config_table
 #endif
 };
-
 #endif /* CONFIG_PCI */
 
+#ifdef CONFIG_PCI2
+static struct pci_controller pci2_hose;
+#endif	/* CONFIG_PCI2 */
+
+int first_free_busno = 0;
+
+
 void pci_init_board(void)
 {
-#ifdef CONFIG_PCI
-	extern void pci_mpc86xx_init(struct pci_controller *hose);
+	volatile immap_t *immap = (immap_t *) CFG_CCSRBAR;
+	volatile ccsr_gur_t *gur = &immap->im_gur;
+	uint devdisr = gur->devdisr;
+	uint io_sel = (gur->pordevsr & MPC86xx_PORDEVSR_IO_SEL) >> 16;
+
+#ifdef CONFIG_PCI1
+{
+	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCI1_ADDR;
+	extern void fsl_pci_init(struct pci_controller *hose);
+	struct pci_controller *hose = &pci1_hose;
+#ifdef DEBUG
+	uint host1_agent = (gur->porbmsr & MPC86xx_PORBMSR_HA) >> 17;
+	uint pex1_agent = (host1_agent == 0) || (host1_agent == 1);
+#endif
+	if ((io_sel == 2 || io_sel == 3 || io_sel == 5
+	     || io_sel == 6 || io_sel == 7 || io_sel == 0xF)
+	    && !(devdisr & MPC86xx_DEVDISR_PCIEX1)) {
+		debug("PCI-EXPRESS 1: %s \n", pex1_agent ? "Agent" : "Host");
+		debug("0x%08x=0x%08x ", &pci->pme_msg_det, pci->pme_msg_det);
+		if (pci->pme_msg_det) {
+			pci->pme_msg_det = 0xffffffff;
+			debug(" with errors.  Clearing.  Now 0x%08x",
+			      pci->pme_msg_det);
+		}
+		debug("\n");
+
+		/* inbound */
+		pci_set_region(hose->regions + 0,
+			       CFG_PCI_MEMORY_BUS,
+			       CFG_PCI_MEMORY_PHYS,
+			       CFG_PCI_MEMORY_SIZE,
+			       PCI_REGION_MEM | PCI_REGION_MEMORY);
+
+		/* outbound memory */
+		pci_set_region(hose->regions + 1,
+			       CFG_PCI1_MEM_BASE,
+			       CFG_PCI1_MEM_PHYS,
+			       CFG_PCI1_MEM_SIZE,
+			       PCI_REGION_MEM);
+
+		/* outbound io */
+		pci_set_region(hose->regions + 2,
+			       CFG_PCI1_IO_BASE,
+			       CFG_PCI1_IO_PHYS,
+			       CFG_PCI1_IO_SIZE,
+			       PCI_REGION_IO);
+
+		hose->region_count = 3;
+
+		hose->first_busno=first_free_busno;
+		pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
+
+		fsl_pci_init(hose);
+
+		first_free_busno=hose->last_busno+1;
+		printf ("    PCI-EXPRESS 1 on bus %02x - %02x\n",
+			hose->first_busno,hose->last_busno);
+
+		/*
+		 * Activate ULI1575 legacy chip by performing a fake
+		 * memory access.  Needed to make ULI RTC work.
+		 */
+		in_be32((unsigned *) CFG_PCI1_MEM_BASE
+			+ CFG_PCI1_MEM_SIZE - 0x1000000);
+
+	} else {
+		puts("PCI-EXPRESS 1: Disabled\n");
+	}
+}
+#else
+	puts("PCI-EXPRESS1: Disabled\n");
+#endif /* CONFIG_PCI1 */
+
+#ifdef CONFIG_PCI2
+{
+	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCI2_ADDR;
+	extern void fsl_pci_init(struct pci_controller *hose);
+	struct pci_controller *hose = &pci2_hose;
+
+
+	/* inbound */
+	pci_set_region(hose->regions + 0,
+		       CFG_PCI_MEMORY_BUS,
+		       CFG_PCI_MEMORY_PHYS,
+		       CFG_PCI_MEMORY_SIZE,
+		       PCI_REGION_MEM | PCI_REGION_MEMORY);
+
+	/* outbound memory */
+	pci_set_region(hose->regions + 1,
+		       CFG_PCI2_MEM_BASE,
+		       CFG_PCI2_MEM_PHYS,
+		       CFG_PCI2_MEM_SIZE,
+		       PCI_REGION_MEM);
+
+	/* outbound io */
+	pci_set_region(hose->regions + 2,
+		       CFG_PCI2_IO_BASE,
+		       CFG_PCI2_IO_PHYS,
+		       CFG_PCI2_IO_SIZE,
+		       PCI_REGION_IO);
+
+	hose->region_count = 3;
+
+	hose->first_busno=first_free_busno;
+	pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
+
+	fsl_pci_init(hose);
+
+	first_free_busno=hose->last_busno+1;
+	printf ("    PCI-EXPRESS 2 on bus %02x - %02x\n",
+		hose->first_busno,hose->last_busno);
+}
+#else
+	puts("PCI-EXPRESS 2: Disabled\n");
+#endif /* CONFIG_PCI2 */
 
-	pci_mpc86xx_init(&hose);
-#endif /* CONFIG_PCI */
 }
 
 #if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)

board/mpc8641hpcn/u-boot.lds

@@ -57,7 +57,6 @@ SECTIONS
     cpu/mpc86xx/cpu_init.o (.text)
     cpu/mpc86xx/cpu.o (.text)
     cpu/mpc86xx/speed.o (.text)
-    cpu/mpc86xx/pci.o (.text)
     common/dlmalloc.o (.text)
     lib_generic/crc32.o (.text)
     lib_ppc/extable.o (.text)

cpu/mpc86xx/Makefile

@@ -1,4 +1,5 @@
 #
+# Copyright 2007 Freescale Semiconductor, Inc.
 # (C) Copyright 2002,2003 Motorola Inc.
 # Xianghua Xiao,X.Xiao@motorola.com
 #
@@ -30,7 +31,7 @@ LIB	= $(obj)lib$(CPU).a
 START	= start.o #resetvec.o
 SOBJS	= cache.o
 COBJS	= traps.o cpu.o cpu_init.o speed.o interrupts.o \
-	  pci.o pcie_indirect.o spd_sdram.o
+	  spd_sdram.o
 
 SRCS	:= $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))

cpu/mpc86xx/pci.c

@@ -1,146 +0,0 @@
-/*
- * Copyright (C) Freescale Semiconductor,Inc.
- * 2005, 2006. All rights reserved.
- *
- * Ed Swarthout (ed.swarthout@freescale.com)
- * Jason Jin (Jason.jin@freescale.com)
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-/*
- * PCIE Configuration space access support for PCIE Bridge
- */
-#include <common.h>
-#include <pci.h>
-
-#if defined(CONFIG_PCI)
-void
-pci_mpc86xx_init(struct pci_controller *hose)
-{
-	volatile immap_t *immap = (immap_t *) CFG_CCSRBAR;
-	volatile ccsr_pex_t *pcie1 = &immap->im_pex1;
-	u16 temp16;
-	u32 temp32;
-
-	volatile ccsr_gur_t *gur = &immap->im_gur;
-	uint host1_agent = (gur->porbmsr & MPC86xx_PORBMSR_HA) >> 17;
-	uint pcie1_host = (host1_agent == 2) || (host1_agent == 3);
-	uint pcie1_agent = (host1_agent == 0) || (host1_agent == 1);
-	uint devdisr = gur->devdisr;
-	uint io_sel = (gur->pordevsr & MPC86xx_PORDEVSR_IO_SEL) >> 16;
-
-	if ((io_sel == 2 || io_sel == 3 || io_sel == 5 || io_sel == 6 ||
-	     io_sel == 7 || io_sel == 0xf)
-	    && !(devdisr & MPC86xx_DEVDISR_PCIEX1)) {
-		printf("PCI-EXPRESS 1: Configured as %s \n",
-		       pcie1_agent ? "Agent" : "Host");
-		if (pcie1_agent)
-			return;	/*Don't scan bus when configured as agent */
-		printf("               Scanning PCIE bus");
-		debug("0x%08x=0x%08x ",
-		      &pcie1->pme_msg_det,
-		      pcie1->pme_msg_det);
-		if (pcie1->pme_msg_det) {
-			pcie1->pme_msg_det = 0xffffffff;
-			debug(" with errors.  Clearing.  Now 0x%08x",
-			      pcie1->pme_msg_det);
-		}
-		debug("\n");
-	} else {
-		printf("PCI-EXPRESS 1 disabled!\n");
-		return;
-	}
-
-	/*
-	 * Set first_bus=0 only skipped B0:D0:F0 which is
-	 * a reserved device in M1575, but make it easy for
-	 * most of the scan process.
-	 */
-	hose->first_busno = 0x00;
-	hose->last_busno = 0xfe;
-
-	pcie_setup_indirect(hose, (CFG_IMMR + 0x8000), (CFG_IMMR + 0x8004));
-
-	pci_hose_read_config_word(hose,
-				  PCI_BDF(0, 0, 0), PCI_COMMAND, &temp16);
-	temp16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER |
-	    PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
-	pci_hose_write_config_word(hose,
-				   PCI_BDF(0, 0, 0), PCI_COMMAND, temp16);
-
-	pci_hose_write_config_word(hose, PCI_BDF(0, 0, 0), PCI_STATUS, 0xffff);
-	pci_hose_write_config_byte(hose,
-				   PCI_BDF(0, 0, 0), PCI_LATENCY_TIMER, 0x80);
-
-	pci_hose_read_config_dword(hose, PCI_BDF(0, 0, 0), PCI_PRIMARY_BUS,
-				   &temp32);
-	temp32 = (temp32 & 0xff000000) | (0xff) | (0x0 << 8) | (0xfe << 16);
-	pci_hose_write_config_dword(hose, PCI_BDF(0, 0, 0), PCI_PRIMARY_BUS,
-				    temp32);
-
-	pcie1->powar1 = 0;
-	pcie1->powar2 = 0;
-	pcie1->piwar1 = 0;
-	pcie1->piwar1 = 0;
-
-	pcie1->powbar1 = (CFG_PCI1_MEM_BASE >> 12) & 0x000fffff;
-	pcie1->powar1 = 0x8004401c;	/* 512M MEM space */
-	pcie1->potar1 = (CFG_PCI1_MEM_BASE >> 12) & 0x000fffff;
-	pcie1->potear1 = 0x00000000;
-
-	pcie1->powbar2 = (CFG_PCI1_IO_BASE >> 12) & 0x000fffff;
-	pcie1->powar2 = 0x80088017;	/* 16M IO space */
-	pcie1->potar2 = 0x00000000;
-	pcie1->potear2 = 0x00000000;
-
-	pcie1->pitar1 = 0x00000000;
-	pcie1->piwbar1 = 0x00000000;
-	/* Enable, Prefetch, Local Mem, * Snoop R/W, 2G */
-	pcie1->piwar1 = 0xa0f5501e;
-
-	pci_set_region(hose->regions + 0,
-		       CFG_PCI_MEMORY_BUS,
-		       CFG_PCI_MEMORY_PHYS,
-		       CFG_PCI_MEMORY_SIZE,
-		       PCI_REGION_MEM | PCI_REGION_MEMORY);
-
-	pci_set_region(hose->regions + 1,
-		       CFG_PCI1_MEM_BASE,
-		       CFG_PCI1_MEM_PHYS,
-		       CFG_PCI1_MEM_SIZE,
-		       PCI_REGION_MEM);
-
-	pci_set_region(hose->regions + 2,
-		       CFG_PCI1_IO_BASE,
-		       CFG_PCI1_IO_PHYS,
-		       CFG_PCI1_IO_SIZE,
-		       PCI_REGION_IO);
-
-	hose->region_count = 3;
-
-	pci_register_hose(hose);
-
-	hose->last_busno = pci_hose_scan(hose);
-	debug("pcie_mpc86xx_init: last_busno %x\n", hose->last_busno);
-	debug("pcie_mpc86xx init: current_busno %x\n ", hose->current_busno);
-
-	printf("....PCIE1 scan & enumeration done\n");
-}
-#endif				/* CONFIG_PCI */

cpu/mpc86xx/pcie_indirect.c

@@ -1,199 +0,0 @@
-/*
- * Support for indirect PCI bridges.
- *
- * Copyright (c) Freescale Semiconductor, Inc.
- * 2006. All rights reserved.
- *
- * Jason Jin <Jason.jin@freescale.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * partly derived from
- * arch/powerpc/platforms/86xx/mpc86xx_pcie.c
- */
-
-#include <common.h>
-
-#ifdef CONFIG_PCI
-
-#include <asm/processor.h>
-#include <asm/io.h>
-#include <pci.h>
-
-#define PCI_CFG_OUT 	out_be32
-#define PEX_FIX		out_be32(hose->cfg_addr+0x4, 0x0400ffff)
-
-static int
-indirect_read_config_pcie(struct pci_controller *hose,
-			  pci_dev_t dev,
-			  int offset,
-			  int len,
-			  u32 *val)
-{
-	int bus = PCI_BUS(dev);
-
-	volatile unsigned char *cfg_data;
-	u32 temp;
-
-	PEX_FIX;
-	if (bus == 0xff) {
-		PCI_CFG_OUT(hose->cfg_addr,
-			    dev | (offset & 0xfc) | 0x80000001);
-	} else {
-		PCI_CFG_OUT(hose->cfg_addr,
-			    dev | (offset & 0xfc) | 0x80000000);
-	}
-	/*
-	 * Note: the caller has already checked that offset is
-	 * suitably aligned and that len is 1, 2 or 4.
-	 */
-	/* ERRATA PCI-Ex 12 - Configuration Address/Data Alignment */
-	cfg_data = hose->cfg_data;
-	PEX_FIX;
-	temp = in_le32((u32 *) cfg_data);
-	switch (len) {
-	case 1:
-		*val = (temp >> (((offset & 3)) * 8)) & 0xff;
-		break;
-	case 2:
-		*val = (temp >> (((offset & 3)) * 8)) & 0xffff;
-		break;
-	default:
-		*val = temp;
-		break;
-	}
-
-	return 0;
-}
-
-static int
-indirect_write_config_pcie(struct pci_controller *hose,
-			   pci_dev_t dev,
-			   int offset,
-			   int len,
-			   u32 val)
-{
-	int bus = PCI_BUS(dev);
-	volatile unsigned char *cfg_data;
-	u32 temp;
-
-	PEX_FIX;
-	if (bus == 0xff) {
-		PCI_CFG_OUT(hose->cfg_addr,
-			    dev | (offset & 0xfc) | 0x80000001);
-	} else {
-		PCI_CFG_OUT(hose->cfg_addr,
-			    dev | (offset & 0xfc) | 0x80000000);
-	}
-
-	/*
-	 * Note: the caller has already checked that offset is
-	 * suitably aligned and that len is 1, 2 or 4.
-	 */
-	/* ERRATA PCI-Ex 12 - Configuration Address/Data Alignment */
-	cfg_data = hose->cfg_data;
-	switch (len) {
-	case 1:
-		PEX_FIX;
-		temp = in_le32((u32 *) cfg_data);
-		temp = (temp & ~(0xff << ((offset & 3) * 8))) |
-		    (val << ((offset & 3) * 8));
-		PEX_FIX;
-		out_le32((u32 *) cfg_data, temp);
-		break;
-	case 2:
-		PEX_FIX;
-		temp = in_le32((u32 *) cfg_data);
-		temp = (temp & ~(0xffff << ((offset & 3) * 8)));
-		temp |= (val << ((offset & 3) * 8));
-		PEX_FIX;
-		out_le32((u32 *) cfg_data, temp);
-		break;
-	default:
-		PEX_FIX;
-		out_le32((u32 *) cfg_data, val);
-		break;
-	}
-	PEX_FIX;
-	return 0;
-}
-
-static int
-indirect_read_config_byte_pcie(struct pci_controller *hose,
-			       pci_dev_t dev,
-			       int offset,
-			       u8 *val)
-{
-	u32 val32;
-	indirect_read_config_pcie(hose, dev, offset, 1, &val32);
-	*val = (u8) val32;
-	return 0;
-}
-
-static int
-indirect_read_config_word_pcie(struct pci_controller *hose,
-			       pci_dev_t dev,
-			       int offset,
-			       u16 *val)
-{
-	u32 val32;
-	indirect_read_config_pcie(hose, dev, offset, 2, &val32);
-	*val = (u16) val32;
-	return 0;
-}
-
-static int
-indirect_read_config_dword_pcie(struct pci_controller *hose,
-				pci_dev_t dev,
-				int offset,
-				u32 *val)
-{
-	return indirect_read_config_pcie(hose, dev, offset, 4, val);
-}
-
-static int
-indirect_write_config_byte_pcie(struct pci_controller *hose,
-				pci_dev_t dev,
-				int offset,
-				u8 val)
-{
-	return indirect_write_config_pcie(hose, dev, offset, 1, (u32) val);
-}
-
-static int
-indirect_write_config_word_pcie(struct pci_controller *hose,
-				pci_dev_t dev,
-				int offset,
-				unsigned short val)
-{
-	return indirect_write_config_pcie(hose, dev, offset, 2, (u32) val);
-}
-
-static int
-indirect_write_config_dword_pcie(struct pci_controller *hose,
-				 pci_dev_t dev,
-				 int offset,
-				 u32 val)
-{
-	return indirect_write_config_pcie(hose, dev, offset, 4, val);
-}
-
-void
-pcie_setup_indirect(struct pci_controller *hose, u32 cfg_addr, u32 cfg_data)
-{
-	pci_set_ops(hose,
-		    indirect_read_config_byte_pcie,
-		    indirect_read_config_word_pcie,
-		    indirect_read_config_dword_pcie,
-		    indirect_write_config_byte_pcie,
-		    indirect_write_config_word_pcie,
-		    indirect_write_config_dword_pcie);
-
-	hose->cfg_addr = (unsigned int *)cfg_addr;
-	hose->cfg_data = (unsigned char *)cfg_data;
-}
-
-#endif				/* CONFIG_PCI */

drivers/Makefile

@@ -52,7 +52,7 @@ COBJS	= 3c589.o 5701rls.o ali512x.o ata_piix.o atmel_usart.o \
 	  ks8695eth.o \
 	  pxa_pcmcia.o mpc8xx_pcmcia.o tqm8xx_pcmcia.o	\
 	  rpx_pcmcia.o \
-	  fsl_i2c.o
+	  fsl_i2c.o fsl_pci_init.o
 
 SRCS	:= $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))

drivers/ahci.c

@@ -253,7 +253,8 @@ static void ahci_print_info(struct ahci_probe_ent *probe_ent)
 
 static int ahci_init_one(pci_dev_t pdev)
 {
-	u32 iobase, vendor;
+	u32 iobase;
+	u16 vendor;
 	int rc;
 
 	memset((void *)ataid, 0, sizeof(hd_driveid_t *) * AHCI_MAX_PORTS);

drivers/fsl_pci_init.c

@@ -0,0 +1,180 @@
+/*
+ * Copyright 2007 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#define DEBUG
+#include <common.h>
+
+#ifdef CONFIG_FSL_PCI_INIT
+
+/*
+ * PCI/PCIE Controller initialization for mpc85xx/mpc86xx soc's
+ *
+ * Initialize controller and call the common driver/pci pci_hose_scan to
+ * scan for bridges and devices.
+ *
+ * Hose fields which need to be pre-initialized by board specific code:
+ *   regions[]
+ *   first_busno
+ *
+ * Fields updated:
+ *   last_busno
+ */
+
+#include <pci.h>
+#include <asm/immap_fsl_pci.h>
+
+void pciauto_prescan_setup_bridge(struct pci_controller *hose,
+				pci_dev_t dev, int sub_bus);
+void pciauto_postscan_setup_bridge(struct pci_controller *hose,
+				pci_dev_t dev, int sub_bus);
+
+void pciauto_config_init(struct pci_controller *hose);
+void
+fsl_pci_init(struct pci_controller *hose)
+{
+	u16 temp16;
+	u32 temp32;
+	int busno = hose->first_busno;
+	int enabled;
+	u16 ltssm;
+	u8 temp8;
+	int r;
+	int bridge;
+	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) hose->cfg_addr;
+	pci_dev_t dev = PCI_BDF(busno,0,0);
+
+	/* Initialize ATMU registers based on hose regions and flags */
+	volatile pot_t *po=&pci->pot[1];	/* skip 0 */
+	volatile pit_t *pi=&pci->pit[0];	/* ranges from: 3 to 1 */
+
+#ifdef DEBUG
+	int neg_link_w;
+#endif
+
+	for (r=0; r<hose->region_count; r++) {
+		if (hose->regions[r].flags & PCI_REGION_MEMORY) { /* inbound */
+			pi->pitar = (hose->regions[r].bus_start >> 12) & 0x000fffff;
+			pi->piwbar = (hose->regions[r].phys_start >> 12) & 0x000fffff;
+			pi->piwbear = 0;
+			pi->piwar = PIWAR_EN | PIWAR_PF | PIWAR_LOCAL |
+				PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP |
+				(__ilog2(hose->regions[r].size) - 1);
+			pi++;
+		} else { /* Outbound */
+			po->powbar = (hose->regions[r].phys_start >> 12) & 0x000fffff;
+			po->potar = (hose->regions[r].bus_start >> 12) & 0x000fffff;
+			po->potear = 0;
+			if (hose->regions[r].flags & PCI_REGION_IO)
+				po->powar = POWAR_EN | POWAR_IO_READ | POWAR_IO_WRITE |
+					(__ilog2(hose->regions[r].size) - 1);
+			else
+				po->powar = POWAR_EN | POWAR_MEM_READ | POWAR_MEM_WRITE |
+					(__ilog2(hose->regions[r].size) - 1);
+			po++;
+		}
+	}
+
+	pci_register_hose(hose);
+	pciauto_config_init(hose);	/* grab pci_{mem,prefetch,io} */
+	hose->current_busno = hose->first_busno;
+
+	pci->pedr = 0xffffffff;		/* Clear any errors */
+	pci->peer = 0xffffffff;		/* Enable Error Interupts */
+	pci_hose_read_config_dword (hose, dev, PCI_DCR, &temp32);
+	temp32 |= 0xf000e;		/* set URR, FER, NFER (but not CER) */
+	pci_hose_write_config_dword(hose, dev, PCI_DCR, temp32);
+
+	pci_hose_read_config_byte (hose, dev, PCI_HEADER_TYPE, &temp8);
+	bridge = temp8 & PCI_HEADER_TYPE_BRIDGE; /* Bridge, such as pcie */
+
+	if ( bridge ) {
+
+		pci_hose_read_config_word(hose, dev, PCI_LTSSM, &ltssm);
+		enabled = ltssm >= PCI_LTSSM_L0;
+
+		if (!enabled) {
+			debug("....PCIE link error.  Skipping scan."
+			      "LTSSM=0x%02x\n", temp16);
+			hose->last_busno = hose->first_busno;
+			return;
+		}
+
+		pci->pme_msg_det = 0xffffffff;
+		pci->pme_msg_int_en = 0xffffffff;
+#ifdef DEBUG
+		pci_hose_read_config_word(hose, dev, PCI_LSR, &temp16);
+		neg_link_w = (temp16 & 0x3f0 ) >> 4;
+		debug("...PCIE LTSSM=0x%x, Negotiated link width=%d\n",
+		      ltssm, neg_link_w);
+#endif
+		hose->current_busno++; /* Start scan with secondary */
+		pciauto_prescan_setup_bridge(hose, dev, hose->current_busno);
+
+	} else {
+#if 0
+/* done in pci_hose_config_device() */
+		pci_hose_read_config_word(hose, dev, PCI_COMMAND, &temp16);
+		temp16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER |
+			PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
+		pci_hose_write_config_word(hose, dev, PCI_COMMAND, temp16);
+		pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff);
+		pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80);
+#endif
+	}
+
+	/* Call setup to allocate PCSRBAR window */
+	pciauto_setup_device(hose, dev, 1, hose->pci_mem,
+			     hose->pci_prefetch, hose->pci_io);
+
+	printf ("               Scanning PCI bus %02x\n", hose->current_busno);
+	hose->last_busno = pci_hose_scan_bus(hose,hose->current_busno);
+
+	if ( bridge ) { /* update limit regs and subordinate busno */
+		pciauto_postscan_setup_bridge(hose, dev, hose->last_busno);
+	}
+
+	/* Clear all error indications */
+
+	if (pci->pme_msg_det && pci->pme_msg_det != 0xffffffff) {
+		debug("pci_fsl_init: pme_msg_det@%x=%x.  Clearing\n",
+			&pci->pme_msg_det, pci->pme_msg_det);
+		pci->pme_msg_det = 0xffffffff;
+	}
+
+	if (pci->pedr) {
+		debug("pci_fsl_init: pedr@%x=%x.  Clearing\n",
+			&pci->pedr, pci->pedr);
+		pci->pedr = 0xffffffff;
+	}
+
+	pci_hose_read_config_word (hose, dev, PCI_DSR, &temp16);
+	if (temp16) {
+		debug("pci_fsl_init: PCI_DSR@%x=%x.  Clearing\n",
+			PCI_DSR, temp16);
+		pci_hose_write_config_word(hose, dev,
+					   PCI_DSR, 0xffff);
+	}
+
+	pci_hose_read_config_word (hose, dev, PCI_SEC_STATUS, &temp16);
+	if (temp16) {
+		debug("pci_fsl_init: PCI_SEC_STATUS@%x=%x.  Clearing\n",
+			PCI_SEC_STATUS, temp16);
+		pci_hose_write_config_word(hose, dev, PCI_SEC_STATUS, 0xffff);
+	}
+}
+
+#endif /* CONFIG_FSL_PCI */

include/asm-ppc/immap_fsl_pci.h

@@ -0,0 +1,150 @@
+/* (C) Copyright 2007 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 as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#ifndef __IMMAP_85xx_fsl_pci__
+#define __IMMAP_85xx_fsl_pci__
+
+/*
+ * Common PCI/PCIE Register structure for mpc85xx and mpc86xx
+ */
+
+/*
+ * PCI Translation Registers
+ */
+typedef struct pci_outbound_window {
+	u32	potar;		/* 0x00 - Address */
+	u32	potear;		/* 0x04 - Address Extended */
+	u32	powbar;		/* 0x08 - Window Base Address */
+	u32	res1;
+	u32	powar;		/* 0x10 - Window Attributes */
+#define POWAR_EN	0x80000000
+#define POWAR_IO_READ	0x00080000
+#define POWAR_MEM_READ	0x00040000
+#define POWAR_IO_WRITE	0x00008000
+#define POWAR_MEM_WRITE	0x00004000
+	u32	res2[3];
+} pot_t;
+
+typedef struct pci_inbound_window {
+	u32	pitar;		/* 0x00 - Address */
+	u32	res1;
+	u32	piwbar;		/* 0x08 - Window Base Address */
+	u32	piwbear;	/* 0x0c - Window Base Address Extended */
+	u32	piwar;		/* 0x10 - Window Attributes */
+#define PIWAR_EN		0x80000000
+#define PIWAR_PF		0x20000000
+#define PIWAR_LOCAL		0x00f00000
+#define PIWAR_READ_SNOOP	0x00050000
+#define PIWAR_WRITE_SNOOP	0x00005000
+	u32	res2[3];
+} pit_t;
+
+/* PCI/PCI Express Registers */
+typedef struct ccsr_pci {
+	u32	cfg_addr;	/* 0x000 - PCI Configuration Address Register */
+	u32	cfg_data;	/* 0x004 - PCI Configuration Data Register */
+	u32	int_ack;	/* 0x008 - PCI Interrupt Acknowledge Register */
+	u32	out_comp_to;	/* 0x00C - PCI Outbound Completion Timeout Register */
+	u32	out_conf_to;	/* 0x010 - PCI Configuration Timeout Register */
+	u32	config;		/* 0x014 - PCIE CONFIG Register */
+	char	res2[8];
+	u32	pme_msg_det;	/* 0x020 - PCIE PME & message detect register */
+	u32	pme_msg_dis;	/* 0x024 - PCIE PME & message disable register */
+	u32	pme_msg_int_en;	/* 0x028 - PCIE PME & message interrupt enable register */
+	u32	pm_command;	/* 0x02c - PCIE PM Command register */
+	char	res4[3016];	/*     (- #xbf8	 #x30)3016 */
+	u32	block_rev1;	/* 0xbf8 - PCIE Block Revision register 1 */
+	u32	block_rev2;	/* 0xbfc - PCIE Block Revision register 2 */
+
+	pot_t	pot[5];		/* 0xc00 - 0xc9f Outbound ATMU's 0, 1, 2, 3, and 4 */
+	u32	res5[64];
+	pit_t	pit[3];		/* 0xda0 - 0xdff Inbound ATMU's 3, 2, and 1 */
+#define PIT3 0
+#define PIT2 1
+#define PIT1 2
+
+#if 0
+	u32	potar0;		/* 0xc00 - PCI Outbound Transaction Address Register 0 */
+	u32	potear0;	/* 0xc04 - PCI Outbound Translation Extended Address Register 0 */
+	char	res5[8];
+	u32	powar0;		/* 0xc10 - PCI Outbound Window Attributes Register 0 */
+	char	res6[12];
+	u32	potar1;		/* 0xc20 - PCI Outbound Transaction Address Register 1 */
+	u32	potear1;	/* 0xc24 - PCI Outbound Translation Extended Address Register 1 */
+	u32	powbar1;	/* 0xc28 - PCI Outbound Window Base Address Register 1 */
+	char	res7[4];
+	u32	powar1;		/* 0xc30 - PCI Outbound Window Attributes Register 1 */
+	char	res8[12];
+	u32	potar2;		/* 0xc40 - PCI Outbound Transaction Address Register 2 */
+	u32	potear2;	/* 0xc44 - PCI Outbound Translation Extended Address Register 2 */
+	u32	powbar2;	/* 0xc48 - PCI Outbound Window Base Address Register 2 */
+	char	res9[4];
+	u32	powar2;		/* 0xc50 - PCI Outbound Window Attributes Register 2 */
+	char	res10[12];
+	u32	potar3;		/* 0xc60 - PCI Outbound Transaction Address Register 3 */
+	u32	potear3;	/* 0xc64 - PCI Outbound Translation Extended Address Register 3 */
+	u32	powbar3;	/* 0xc68 - PCI Outbound Window Base Address Register 3 */
+	char	res11[4];
+	u32	powar3;		/* 0xc70 - PCI Outbound Window Attributes Register 3 */
+	char	res12[12];
+	u32	potar4;		/* 0xc80 - PCI Outbound Transaction Address Register 4 */
+	u32	potear4;	/* 0xc84 - PCI Outbound Translation Extended Address Register 4 */
+	u32	powbar4;	/* 0xc88 - PCI Outbound Window Base Address Register 4 */
+	char	res13[4];
+	u32	powar4;		/* 0xc90 - PCI Outbound Window Attributes Register 4 */
+	char	res14[268];
+	u32	pitar3;		/* 0xda0 - PCI Inbound Translation Address Register 3 */
+	char	res15[4];
+	u32	piwbar3;	/* 0xda8 - PCI Inbound Window Base Address Register 3 */
+	u32	piwbear3;	/* 0xdac - PCI Inbound Window Base Extended Address Register 3 */
+	u32	piwar3;		/* 0xdb0 - PCI Inbound Window Attributes Register 3 */
+	char	res16[12];
+	u32	pitar2;		/* 0xdc0 - PCI Inbound Translation Address Register 2 */
+	char	res17[4];
+	u32	piwbar2;	/* 0xdc8 - PCI Inbound Window Base Address Register 2 */
+	u32	piwbear2;	/* 0xdcc - PCI Inbound Window Base Extended Address Register 2 */
+	u32	piwar2;		/* 0xdd0 - PCI Inbound Window Attributes Register 2 */
+	char	res18[12];
+	u32	pitar1;		/* 0xde0 - PCI Inbound Translation Address Register 1 */
+	char	res19[4];
+	u32	piwbar1;	/* 0xde8 - PCI Inbound Window Base Address Register 1 */
+	char	res20[4];
+	u32	piwar1;		/* 0xdf0 - PCI Inbound Window Attributes Register 1 */
+	char	res21[12];
+#endif
+	u32	pedr;		/* 0xe00 - PCI Error Detect Register */
+	u32	pecdr;		/* 0xe04 - PCI Error Capture Disable Register */
+	u32	peer;		/* 0xe08 - PCI Error Interrupt Enable Register */
+	u32	peattrcr;	/* 0xe0c - PCI Error Attributes Capture Register */
+	u32	peaddrcr;	/* 0xe10 - PCI Error Address Capture Register */
+/*	u32	perr_disr	 * 0xe10 - PCIE Erorr Disable Register */
+	u32	peextaddrcr;	/* 0xe14 - PCI	Error Extended Address Capture Register */
+	u32	pedlcr;		/* 0xe18 - PCI Error Data Low Capture Register */
+	u32	pedhcr;		/* 0xe1c - PCI Error Error Data High Capture Register */
+	u32	gas_timr;	/* 0xe20 - PCI Gasket Timer Register */
+/*	u32	perr_cap_stat;	 * 0xe20 - PCIE Error Capture Status Register */
+	char	res22[4];
+	u32	perr_cap0;	/* 0xe28 - PCIE Error Capture Register 0 */
+	u32	perr_cap1;	/* 0xe2c - PCIE Error Capture Register 1 */
+	u32	perr_cap2;	/* 0xe30 - PCIE Error Capture Register 2 */
+	u32	perr_cap3;	/* 0xe34 - PCIE Error Capture Register 3 */
+	char	res23[456];	/*     (- #x1000 #xe38) 456 */
+} ccsr_fsl_pci_t;
+
+#endif /*__IMMAP_fsl_pci__*/

include/configs/MPC8641HPCN.h

@@ -46,8 +46,10 @@
 
 #define CFG_RESET_ADDRESS    0xfff00100
 
-/*#undef CONFIG_PCI*/
-#define CONFIG_PCI
+#define CONFIG_PCI		1	/* Enable PCI/PCIE */
+#define CONFIG_PCI1		1	/* PCIE controler 1 (ULI bridge) */
+#define CONFIG_PCI2		1	/* PCIE controler 2 (slot) */
+#define CONFIG_FSL_PCI_INIT	1	/* Use common FSL init code */
 
 #define CONFIG_TSEC_ENET 		/* tsec ethernet support */
 #define CONFIG_ENV_OVERWRITE
@@ -76,6 +78,9 @@
 #define L2_ENABLE	(L2CR_L2E)
 
 #ifndef CONFIG_SYS_CLK_FREQ
+#ifndef __ASSEMBLY__
+extern unsigned long get_board_sys_clk(unsigned long dummy);
+#endif
 #define CONFIG_SYS_CLK_FREQ     get_board_sys_clk(0)
 #endif
 
@@ -93,6 +98,9 @@
 #define CFG_CCSRBAR		0xf8000000	/* relocated CCSRBAR */
 #define CFG_IMMR		CFG_CCSRBAR	/* PQII uses CFG_IMMR */
 
+#define CFG_PCI1_ADDR		(CFG_CCSRBAR+0x8000)
+#define CFG_PCI2_ADDR		(CFG_CCSRBAR+0x9000)
+
 /*
  * DDR Setup
  */
@@ -296,9 +304,9 @@
 #define CFG_PCI1_MEM_BASE	0x80000000
 #define CFG_PCI1_MEM_PHYS	CFG_PCI1_MEM_BASE
 #define CFG_PCI1_MEM_SIZE	0x20000000	/* 512M */
-#define CFG_PCI1_IO_BASE	0xe2000000
-#define CFG_PCI1_IO_PHYS	CFG_PCI1_IO_BASE
-#define CFG_PCI1_IO_SIZE	0x1000000	/* 16M */
+#define CFG_PCI1_IO_BASE	0x00000000
+#define CFG_PCI1_IO_PHYS	0xe2000000
+#define CFG_PCI1_IO_SIZE	0x00100000	/* 1M */
 
 /* PCI view of System Memory */
 #define CFG_PCI_MEMORY_BUS      0x00000000
@@ -311,10 +319,10 @@
 
 #define CFG_PCI2_MEM_BASE	0xa0000000
 #define CFG_PCI2_MEM_PHYS	CFG_PCI2_MEM_BASE
-#define CFG_PCI2_MEM_SIZE	0x10000000	/* 256M */
-#define CFG_PCI2_IO_BASE	0xe3000000
-#define CFG_PCI2_IO_PHYS	CFG_PCI2_IO_BASE
-#define CFG_PCI2_IO_SIZE	0x1000000	/* 16M */
+#define CFG_PCI2_MEM_SIZE	0x20000000	/* 512M */
+#define CFG_PCI2_IO_BASE	0x00000000
+#define CFG_PCI2_IO_PHYS	0xe3000000
+#define CFG_PCI2_IO_SIZE	0x00100000	/* 1M */
 
 #if defined(CONFIG_PCI)
 
@@ -396,20 +404,20 @@
  * 0xa000_0000  512M   PCI-Express 2 Memory
  *	Changed it for operating from 0xd0000000
  */
-#define CFG_DBAT1L      ( CFG_PCI1_MEM_BASE | BATL_PP_RW \
+#define CFG_DBAT1L      ( CFG_PCI1_MEM_PHYS | BATL_PP_RW \
 			| BATL_CACHEINHIBIT | BATL_GUARDEDSTORAGE)
-#define CFG_DBAT1U      (CFG_PCI1_MEM_BASE | BATU_BL_256M | BATU_VS | BATU_VP)
-#define CFG_IBAT1L      (CFG_PCI1_MEM_BASE | BATL_PP_RW | BATL_CACHEINHIBIT)
+#define CFG_DBAT1U	(CFG_PCI1_MEM_PHYS | BATU_BL_1G | BATU_VS | BATU_VP)
+#define CFG_IBAT1L	(CFG_PCI1_MEM_PHYS | BATL_PP_RW | BATL_CACHEINHIBIT)
 #define CFG_IBAT1U      CFG_DBAT1U
 
 /*
  * BAT2         512M   Cache-inhibited, guarded
  * 0xc000_0000  512M   RapidIO Memory
  */
-#define CFG_DBAT2L      (CFG_RIO_MEM_BASE | BATL_PP_RW \
+#define CFG_DBAT2L      (CFG_RIO_MEM_PHYS | BATL_PP_RW \
 			| BATL_CACHEINHIBIT | BATL_GUARDEDSTORAGE)
-#define CFG_DBAT2U      (CFG_RIO_MEM_BASE | BATU_BL_512M | BATU_VS | BATU_VP)
-#define CFG_IBAT2L      (CFG_RIO_MEM_BASE | BATL_PP_RW | BATL_CACHEINHIBIT)
+#define CFG_DBAT2U	(CFG_RIO_MEM_PHYS | BATU_BL_512M | BATU_VS | BATU_VP)
+#define CFG_IBAT2L	(CFG_RIO_MEM_PHYS | BATL_PP_RW | BATL_CACHEINHIBIT)
 #define CFG_IBAT2U      CFG_DBAT2U
 
 /*
@@ -428,10 +436,10 @@
  * 0xe300_0000  16M    PCI-Express 2 I/0
  *    Note that this is at 0xe0000000
  */
-#define CFG_DBAT4L      ( CFG_PCI1_IO_BASE | BATL_PP_RW \
+#define CFG_DBAT4L      ( CFG_PCI1_IO_PHYS | BATL_PP_RW \
 			| BATL_CACHEINHIBIT | BATL_GUARDEDSTORAGE)
-#define CFG_DBAT4U      (CFG_PCI1_IO_BASE | BATU_BL_32M | BATU_VS | BATU_VP)
-#define CFG_IBAT4L      (CFG_PCI1_IO_BASE | BATL_PP_RW | BATL_CACHEINHIBIT)
+#define CFG_DBAT4U	(CFG_PCI1_IO_PHYS | BATU_BL_32M | BATU_VS | BATU_VP)
+#define CFG_IBAT4L	(CFG_PCI1_IO_PHYS | BATL_PP_RW | BATL_CACHEINHIBIT)
 #define CFG_IBAT4U      CFG_DBAT4U
 
 /*

include/pci.h

@@ -302,6 +302,12 @@
 #define PCI_MAX_PCI_DEVICES	32
 #define PCI_MAX_PCI_FUNCTIONS	8
 
+#define PCI_DCR		0x54    /* PCIe Device Control Register */
+#define PCI_DSR		0x56    /* PCIe Device Status Register */
+#define PCI_LSR		0x5e    /* PCIe Link Status Register */
+#define PCI_LTSSM	0x404   /* PCIe Link Training, Status State Machine */
+#define  PCI_LTSSM_L0	0x16    /* L0 state */
+
 /* Include the ID list */
 
 #include <pci_ids.h>