[U-Boot-Users] [PATCH 09/18] Add PCI Express support on MPC8568MDS

Kumar Gala
2007-11-29T21:20:59Z

From: Haiying Wang <Haiying.Wang@freescale.com>

Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
board/mpc8568mds/Makefile | 4 +-
board/mpc8568mds/ft_board.c | 45 ----------
board/mpc8568mds/init.S | 23 +++--
board/mpc8568mds/mpc8568mds.c | 179 +++++++++++++++++++++++++++++++++++++++--
include/configs/MPC8568MDS.h | 25 ++++--
5 files changed, 206 insertions(+), 70 deletions(-)
delete mode 100644 board/mpc8568mds/ft_board.c

diff --git a/board/mpc8568mds/Makefile b/board/mpc8568mds/Makefile
index a799aa4..643fbc0 100644
--- a/board/mpc8568mds/Makefile
+++ b/board/mpc8568mds/Makefile
@@ -29,9 +29,7 @@ endif

LIB = $(obj)lib$(BOARD).a

-COBJS := $(BOARD).o \
- bcsr.o \
- ft_board.o
+COBJS := $(BOARD).o bcsr.o

SOBJS := init.o

diff --git a/board/mpc8568mds/ft_board.c b/board/mpc8568mds/ft_board.c
deleted file mode 100644
index 36815cc..0000000
--- a/board/mpc8568mds/ft_board.c
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright 2004-2007 Freescale Semiconductor.
- *
- * 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
- */
-
-#include <common.h>
-
-#include <ft_build.h>
-
-extern void ft_cpu_setup(void *blob, bd_t *bd);
-
-#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
-void
-ft_board_setup(void *blob, bd_t *bd)
-{
- u32 *p;
- int len;
-#ifdef CONFIG_PCI
- ft_pci_setup(blob, bd);
-#endif
- ft_cpu_setup(blob, bd);
- p = ft_get_prop(blob, "/memory/reg", &len);
- if (p != NULL) {
- *p++ = cpu_to_be32(bd->bi_memstart);
- *p = cpu_to_be32(bd->bi_memsize);
- }
-}
-#endif /* CONFIG_OF_FLAT_TREE && CONFIG_OF_BOARD_SETUP */
diff --git a/board/mpc8568mds/init.S b/board/mpc8568mds/init.S
index 972a7d4..38ba9c7 100644
--- a/board/mpc8568mds/init.S
+++ b/board/mpc8568mds/init.S
@@ -28,6 +28,11 @@
#include <config.h>
#include <mpc85xx.h>

+#define LAWAR_TRGT_PCI1 0x00000000
+#define LAWAR_TRGT_PCIE1 0x00200000
+#define LAWAR_TRGT_RIO 0x00c00000
+#define LAWAR_TRGT_LBC 0x00400000
+#define LAWAR_TRGT_DDR 0x00f00000

/*
* TLB0 and TLB1 Entries
@@ -211,27 +216,27 @@ tlb1_entry:
*/

#define LAWBAR0 0
-#define LAWAR0 ((LAWAR_TRGT_IF_DDR | (LAWAR_SIZE & LAWAR_SIZE_128M)) & ~LAWAR_EN)
+#define LAWAR0 ((LAWAR_TRGT_DDR | (LAWAR_SIZE & LAWAR_SIZE_128M)) & ~LAWAR_EN)

#define LAWBAR1 ((CFG_PCI1_MEM_BASE>>12) & 0xfffff)
-#define LAWAR1 (LAWAR_EN | LAWAR_TRGT_IF_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_512M))
+#define LAWAR1 (LAWAR_EN | LAWAR_TRGT_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_512M))

-#define LAWBAR2 ((CFG_PEX_MEM_BASE>>12) & 0xfffff)
-#define LAWAR2 (LAWAR_EN | LAWAR_TRGT_IF_PEX | (LAWAR_SIZE & LAWAR_SIZE_512M))
+#define LAWBAR2 ((CFG_PCIE1_MEM_BASE>>12) & 0xfffff)
+#define LAWAR2 (LAWAR_EN | LAWAR_TRGT_PCIE1 | (LAWAR_SIZE & LAWAR_SIZE_512M))

#define LAWBAR3 ((CFG_PCI1_IO_PHYS>>12) & 0xfffff)
-#define LAWAR3 (LAWAR_EN | LAWAR_TRGT_IF_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_8M))
+#define LAWAR3 (LAWAR_EN | LAWAR_TRGT_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_8M))

-#define LAWBAR4 ((CFG_PEX_IO_PHYS>>12) & 0xfffff)
-#define LAWAR4 (LAWAR_EN | LAWAR_TRGT_IF_PEX | (LAWAR_SIZE & LAWAR_SIZE_8M))
+#define LAWBAR4 ((CFG_PCIE1_IO_PHYS>>12) & 0xfffff)
+#define LAWAR4 (LAWAR_EN | LAWAR_TRGT_PCIE1 | (LAWAR_SIZE & LAWAR_SIZE_8M))

#define LAWBAR5 ((CFG_SRIO_MEM_BASE>>12) & 0xfffff)
-#define LAWAR5 (LAWAR_EN | LAWAR_TRGT_IF_RIO | (LAWAR_SIZE & LAWAR_SIZE_512M))
+#define LAWAR5 (LAWAR_EN | LAWAR_TRGT_RIO | (LAWAR_SIZE & LAWAR_SIZE_512M))

/* LBC window - maps 256M. That's SDRAM, BCSR, PIBs, and Flash */
#define LAWBAR6 ((CFG_LBC_SDRAM_BASE>>12) & 0xfffff)
-#define LAWAR6 (LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_256M))
+#define LAWAR6 (LAWAR_EN | LAWAR_TRGT_LBC | (LAWAR_SIZE & LAWAR_SIZE_256M))

.section .bootpg, "ax"
.globl law_entry
diff --git a/board/mpc8568mds/mpc8568mds.c b/board/mpc8568mds/mpc8568mds.c
index 2a68185..ab5b67d 100644
--- a/board/mpc8568mds/mpc8568mds.c
+++ b/board/mpc8568mds/mpc8568mds.c
@@ -26,10 +26,15 @@
#include <pci.h>
#include <asm/processor.h>
#include <asm/immap_85xx.h>
+#include <asm/immap_fsl_pci.h>
#include <spd.h>
#include <i2c.h>
#include <ioports.h>

+#if defined(CONFIG_OF_FLAT_TREE)
+#include <ft_build.h>
+#endif
+
#include "bcsr.h"

const qe_iop_conf_t qe_iop_conf_tab[] = {
@@ -336,16 +341,19 @@ static struct pci_config_table pci_mpc8568mds_config_table[] = {
};
#endif

-static struct pci_controller hose[] = {
- {
+static struct pci_controller pci1_hose = {
#ifndef CONFIG_PCI_PNP
config_table: pci_mpc8568mds_config_table,
#endif
- }
};
-
#endif /* CONFIG_PCI */

+#ifdef CONFIG_PCIE1
+static struct pci_controller pcie1_hose;
+#endif /* CONFIG_PCIE1 */
+
+int first_free_busno = 0;
+
/*
* pib_init() -- Initialize the PCA9555 IO expander on the PIB board
*/
@@ -388,11 +396,170 @@ pib_init(void)
asm("eieio");
}

+#ifdef CONFIG_PCI
void
pci_init_board(void)
{
-#ifdef CONFIG_PCI
+ volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
+ uint io_sel = (gur->pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
+ uint host_agent = (gur->porbmsr & MPC85xx_PORBMSR_HA) >> 16;
+
+#ifdef CONFIG_PCI1
+{
pib_init();
- pci_mpc85xx_init(hose);
+
+ 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;
+
+ uint pci_32 = 1; /* PORDEVSR[15] */
+ uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB; /* PORDEVSR[14] */
+ uint pci_clk_sel = gur->porpllsr & MPC85xx_PORDEVSR_PCI1_SPD; /* PORPLLSR[16] */
+
+ uint pci_agent = (host_agent == 3) || (host_agent == 4 ) || (host_agent == 6);
+
+ uint pci_speed = 66666000;
+
+ if (!(gur->devdisr & MPC85xx_DEVDISR_PCI1)) {
+ printf (" PCI: %d bit, %s MHz, %s, %s, %s\n",
+ (pci_32) ? 32 : 64,
+ (pci_speed == 33333000) ? "33" :
+ (pci_speed == 66666000) ? "66" : "unknown",
+ pci_clk_sel ? "sync" : "async",
+ pci_agent ? "agent" : "host",
+ pci_arb ? "arbiter" : "external-arbiter"
+ );
+
+ /* 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 on bus %02x - %02x\n",hose->first_busno,hose->last_busno);
+ } else {
+ printf (" PCI: disabled\n");
+ }
+}
+#else
+ gur->devdisr |= MPC85xx_DEVDISR_PCI1; /* disable */
+#endif
+
+#ifdef CONFIG_PCIE1
+{
+ volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCIE1_ADDR;
+ extern void fsl_pci_init(struct pci_controller *hose);
+ struct pci_controller *hose = &pcie1_hose;
+ int pcie_ep = (host_agent == 0) || (host_agent == 2 ) || (host_agent == 3);
+
+ int pcie_configured = io_sel >= 1;
+
+ if (pcie_configured && !(gur->devdisr & MPC85xx_DEVDISR_PCIE)){
+ printf ("\n PCIE connected to slot as %s (base address %x)",
+ pcie_ep ? "End Point" : "Root Complex",
+ (uint)pci);
+
+ if (pci->pme_msg_det) {
+ pci->pme_msg_det = 0xffffffff;
+ debug (" with errors. Clearing. Now 0x%08x",pci->pme_msg_det);
+ }
+ printf ("\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_PCIE1_MEM_BASE,
+ CFG_PCIE1_MEM_PHYS,
+ CFG_PCIE1_MEM_SIZE,
+ PCI_REGION_MEM);
+
+ /* outbound io */
+ pci_set_region(hose->regions + 2,
+ CFG_PCIE1_IO_BASE,
+ CFG_PCIE1_IO_PHYS,
+ CFG_PCIE1_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);
+ printf ("PCIE on bus %02x - %02x\n",hose->first_busno,hose->last_busno);
+
+ first_free_busno=hose->last_busno+1;
+
+ } else {
+ printf (" PCIE: disabled\n");
+ }
+}
+#else
+ gur->devdisr |= MPC85xx_DEVDISR_PCIE; /* disable */
#endif
}
+#endif /* CONFIG_PCI */
+
+#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
+void
+ft_board_setup(void *blob, bd_t *bd)
+{
+ u32 *p;
+ int len;
+
+ ft_cpu_setup(blob, bd);
+ p = ft_get_prop(blob, "/memory/reg", &len);
+ if (p != NULL) {
+ *p++ = cpu_to_be32(bd->bi_memstart);
+ *p = cpu_to_be32(bd->bi_memsize);
+ }
+
+#ifdef CONFIG_PCI1
+ p = (u32 *)ft_get_prop(blob, "/" OF_SOC "/pci at 8000/bus-range", &len);
+ if (p != NULL) {
+ p[0] = 0;
+ p[1] = pci1_hose.last_busno - pci1_hose.first_busno;
+ debug("PCI at 8000 first_busno=%d last_busno=%d\n",p[0],p[1]);
+ }
+#endif
+
+#ifdef CONFIG_PCIE1
+ p = (u32 *)ft_get_prop(blob, "/" OF_SOC "/pcie at a000/bus-range", &len);
+ if (p != NULL) {
+ p[0] = 0;
+ p[1] = pcie1_hose.last_busno - pcie1_hose.first_busno;
+ debug("PCI at a000 first_busno=%d last_busno=%d\n",p[0],p[1]);
+ }
+#endif
+}
+#endif
+
+
diff --git a/include/configs/MPC8568MDS.h b/include/configs/MPC8568MDS.h
index b9366cc..cf79257 100644
--- a/include/configs/MPC8568MDS.h
+++ b/include/configs/MPC8568MDS.h
@@ -33,7 +33,10 @@
#define CONFIG_MPC8568 1 /* MPC8568 specific */
#define CONFIG_MPC8568MDS 1 /* MPC8568MDS board specific */

-#define CONFIG_PCI
+#define CONFIG_PCI 1 /* Enable PCI/PCIE */
+#define CONFIG_PCI1 1 /* PCI controller */
+#define CONFIG_PCIE1 1 /* PCIE controller */
+#define CONFIG_FSL_PCI_INIT 1 /* use common fsl pci init code */
#define CONFIG_TSEC_ENET /* tsec ethernet support */
#define CONFIG_QE /* Enable QE */
#define CONFIG_ENV_OVERWRITE
@@ -87,6 +90,9 @@ extern unsigned long get_clock_freq(void);
#define CFG_CCSRBAR 0xe0000000 /* relocated CCSRBAR */
#define CFG_IMMR CFG_CCSRBAR /* PQII uses CFG_IMMR */

+#define CFG_PCI1_ADDR (CFG_CCSRBAR+0x8000)
+#define CFG_PCIE1_ADDR (CFG_CCSRBAR+0xa000)
+
/*
* DDR Setup
*/
@@ -325,12 +331,12 @@ extern unsigned long get_clock_freq(void);
#define CFG_PCI1_IO_PHYS 0xe2000000
#define CFG_PCI1_IO_SIZE 0x00800000 /* 8M */

-#define CFG_PEX_MEM_BASE 0xa0000000
-#define CFG_PEX_MEM_PHYS CFG_PEX_MEM_BASE
-#define CFG_PEX_MEM_SIZE 0x10000000 /* 256M */
-#define CFG_PEX_IO_BASE 0x00000000
-#define CFG_PEX_IO_PHYS 0xe2800000
-#define CFG_PEX_IO_SIZE 0x00800000 /* 8M */
+#define CFG_PCIE1_MEM_BASE 0xa0000000
+#define CFG_PCIE1_MEM_PHYS CFG_PCIE1_MEM_BASE
+#define CFG_PCIE1_MEM_SIZE 0x20000000 /* 512M */
+#define CFG_PCIE1_IO_BASE 0x00000000
+#define CFG_PCIE1_IO_PHYS 0xe2800000
+#define CFG_PCIE1_IO_SIZE 0x00800000 /* 8M */

#define CFG_SRIO_MEM_BASE 0xc0000000

@@ -383,6 +389,11 @@ extern unsigned long get_clock_freq(void);
#undef CONFIG_PCI_SCAN_SHOW /* show pci devices on startup */
#define CFG_PCI_SUBSYS_VENDORID 0x1057 /* Motorola */

+/* PCI view of System Memory */
+#define CFG_PCI_MEMORY_BUS 0x00000000
+#define CFG_PCI_MEMORY_PHYS 0x00000000
+#define CFG_PCI_MEMORY_SIZE 0x80000000
+
#endif /* CONFIG_PCI */

#ifndef CONFIG_NET_MULTI
--
1.5.3.4