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Merge branch 'mpc86xx'

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This commit is contained in:
Jon Loeliger
2006-06-27 11:08:17 -05:00
parent 321bbd41f9 bc09cf3c2b
commit 894b773c86
8 changed files with 332 additions and 145 deletions
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4
cpu/mpc86xx/Makefile
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@@ -28,9 +28,9 @@ include $(TOPDIR)/config.mk
LIB = lib$(CPU).a
START = start.o #resetvec.o
ASOBJS = cache.o
ASOBJS = cache.o
COBJS = traps.o cpu.o cpu_init.o speed.o interrupts.o \
pci.o i2c.o spd_sdram.o
pci.o pcie_indirect.o i2c.o spd_sdram.o
OBJS = $(COBJS)
all: .depend $(START) $(ASOBJS) $(LIB)

186
cpu/mpc86xx/pci.c
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@@ -1,6 +1,9 @@
/*
* Copyright 2005 Freescale Semiconductor.
* 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.
@@ -22,142 +25,115 @@
*/
/*
* PEX Configuration space access support for PEX Bridge
* 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 *pex1 = &immap->im_pex1;
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 pex1_host = (host1_agent == 2) || (host1_agent == 3);
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;
u16 reg16, reg16_1, reg16_2, reg16_3;
u32 reg32, i;
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;
}
ulong addr, data;
/*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;
uint pex1_agent = (host1_agent == 0) || (host1_agent == 1);
uint devdisr = gur->devdisr;
uint io_sel = (gur->pordevsr & MPC86xx_PORDEVSR_IO_SEL) >> 16;
pcie_setup_indirect(hose,
(CFG_IMMR+0x8000),
(CFG_IMMR+0x8004));
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",
pex1_agent ? "Agent" : "Host");
printf (" Scanning PCI bus");
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");
}
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);
hose->first_busno = 0;
hose->last_busno = 0x7f;
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 + 1,
pci_set_region(hose->regions + 2,
CFG_PCI1_IO_BASE,
CFG_PCI1_IO_PHYS,
CFG_PCI1_IO_SIZE,
PCI_REGION_IO);
hose->region_count = 2;
hose->region_count = 3;
pci_setup_indirect(hose,
(CFG_IMMR+0x8000),
(CFG_IMMR+0x8004));
/*
* Hose scan.
*/
pci_register_hose(hose);
pci_read_config_word (PCI_BDF(0,0,0), PCI_VENDOR_ID, &reg16);
debug("pex_mpc86xx_init: read %2x %4x\n",PCI_VENDOR_ID, reg16);
pci_read_config_word (PCI_BDF(0,0,0), PCI_DEVICE_ID, &reg16);
debug("pex_mpc86xx_init: read %2x %4x\n",PCI_DEVICE_ID, reg16);
pci_read_config_word (PCI_BDF(0,0,0), PCI_COMMAND, &reg16);
reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY \
| PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
pci_write_config_word(PCI_BDF(0,0,0), PCI_COMMAND, reg16);
pci_read_config_word (PCI_BDF(0,0,0), PCI_COMMAND, &reg16);
debug("pex_mpc86xx_init: read %2x %4x\n",PCI_COMMAND, reg16);
/*
* Clear non-reserved bits in status register.
*/
/*
* pci_write_config_word(PCI_BDF(0,0,0), PCI_STATUS, 0xffff);
* pci_write_config_byte(PCI_BDF(0,0,0), PCI_LATENCY_TIMER,0x80);
*/
pex1->powbar1 = (CFG_PCI1_MEM_BASE >> 12) & 0x000fffff;
pex1->powar1 = 0x8004401c; /* 512M MEM space */
pex1->potar1 = (CFG_PCI1_MEM_BASE >> 12) & 0x000fffff;
pex1->potear1 = 0x00000000;
pex1->powbar2 = (CFG_PCI1_IO_BASE >> 12) & 0x000fffff;
pex1->powar2 = 0x80088017; /* 16M IO space */
pex1->potar2 = 0x00000000;
pex1->potear2 = 0x00000000;
if (!pex1->piwar1) {
pex1->pitar1 = 0x00000000;
pex1->piwbar1 = (0x80000000 >> 12 ) & 0x000fffff;
pex1->piwar1 = 0xa0f5501e; /* Enable, Prefetch, Local Mem,
* Snoop R/W, 2G */
}
pex1->pitar2 = 0x00000000;
pex1->piwbar2 = (0xe2000000 >> 12 ) & 0x000fffff;
pex1->piwar2 = 0xa0f5501e; /* Enable, Prefetch, Local Mem,
* Snoop R/W, 2G */
*(u32 *)(0xf8008000)= 0x80000000;
debug("Received data for addr 0x%08lx is 0x%08lx\n",
*(u32*)(0xf8008000), *(u32*)(0xf8008004));
pci_write_config_byte(PCI_BDF(0,0,0), PCI_PRIMARY_BUS,0x20);
pci_write_config_byte(PCI_BDF(0,0,0), PCI_SECONDARY_BUS,0x00);
pci_write_config_byte(PCI_BDF(0,0,0), PCI_SUBORDINATE_BUS,0x1F);
*(u32 *)(0xf8008000)= 0x80200000;
debug("Received data for addr 0x%08lx is 0x%08lx\n",
*(u32*)(0xf8008000), *(u32*)(0xf8008004));
*(u32 *)(0xf8008000)= 0x80200000;
debug("Received data for addr 0x%08lx is 0x%08lx\n",
*(u32*)(0xf8008000), *(u32*)(0xf8008004));
*(u32 *)(0xf8008000)= 0x80200000;
debug("Received data for addr 0x%08lx is 0x%08lx\n",
*(u32*)(0xf8008000), *(u32*)(0xf8008004));
hose->last_busno = pci_hose_scan(hose);
hose->last_busno = 0x21;
debug("pex_mpc86xx_init: last_busno %x\n",hose->last_busno);
debug("pex_mpc86xx init: current_busno %x\n ",hose->current_busno);
debug("pcie_mpc86xx_init: last_busno %x\n",hose->last_busno);
debug("pcie_mpc86xx init: current_busno %x\n ",hose->current_busno);
printf("....PCI scan & enumeration done\n");
printf("....PCIE1 scan & enumeration done\n");
}
#endif /* CONFIG_PCI */

198
cpu/mpc86xx/pcie_indirect.c Normal file
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@@ -0,0 +1,198 @@
/*
* 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);
char devfn = ( (PCI_DEV(dev) << 4 ) | (PCI_FUNC(dev)) ) ;
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(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);
char devfn = ( (PCI_DEV(dev) << 4 ) | (PCI_FUNC(dev)) ) ;
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(cfg_data);
temp = (temp & ~(0xff << ((offset & 3) * 8))) |
(val << ((offset & 3) * 8));
PEX_FIX;
out_le32(cfg_data, temp);
break;
case 2:
PEX_FIX;
temp = in_le32(cfg_data);
temp = (temp & ~(0xffff << ((offset & 3) * 8)));
temp |= (val << ((offset & 3) * 8)) ;
PEX_FIX;
out_le32(cfg_data, temp);
break;
default:
PEX_FIX;
out_le32(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,
char 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,
unsigned short 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 */