+++ /dev/null
-/*
- * Copyright 2004 Freescale Semiconductor.
- * Copyright (C) 2003 Motorola Inc.
- * Xianghua Xiao (x.xiao@motorola.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
- */
-
-/*
- * PCI Configuration space access support for MPC85xx PCI Bridge
- */
-#include <common.h>
-#include <asm/cpm_85xx.h>
-#include <pci.h>
-
-#if !defined(CONFIG_FSL_PCI_INIT)
-
-#ifndef CONFIG_SYS_PCI1_MEM_BUS
-#define CONFIG_SYS_PCI1_MEM_BUS CONFIG_SYS_PCI1_MEM_BASE
-#endif
-
-#ifndef CONFIG_SYS_PCI1_IO_BUS
-#define CONFIG_SYS_PCI1_IO_BUS CONFIG_SYS_PCI1_IO_BASE
-#endif
-
-#ifndef CONFIG_SYS_PCI2_MEM_BUS
-#define CONFIG_SYS_PCI2_MEM_BUS CONFIG_SYS_PCI2_MEM_BASE
-#endif
-
-#ifndef CONFIG_SYS_PCI2_IO_BUS
-#define CONFIG_SYS_PCI2_IO_BUS CONFIG_SYS_PCI2_IO_BASE
-#endif
-
-static struct pci_controller *pci_hose;
-
-void
-pci_mpc85xx_init(struct pci_controller *board_hose)
-{
- u16 reg16;
- u32 dev;
-
- volatile ccsr_pcix_t *pcix = (void *)(CONFIG_SYS_MPC85xx_PCIX_ADDR);
-#ifdef CONFIG_MPC85XX_PCI2
- volatile ccsr_pcix_t *pcix2 = (void *)(CONFIG_SYS_MPC85xx_PCIX2_ADDR);
-#endif
- volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
- struct pci_controller * hose;
-
- pci_hose = board_hose;
-
- hose = &pci_hose[0];
-
- hose->first_busno = 0;
- hose->last_busno = 0xff;
-
- pci_setup_indirect(hose,
- (CONFIG_SYS_IMMR+0x8000),
- (CONFIG_SYS_IMMR+0x8004));
-
- /*
- * Hose scan.
- */
- dev = PCI_BDF(hose->first_busno, 0, 0);
- pci_hose_read_config_word (hose, dev, PCI_COMMAND, ®16);
- reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
- pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16);
-
- /*
- * Clear non-reserved bits in status register.
- */
- pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff);
-
- if (!(gur->pordevsr & MPC85xx_PORDEVSR_PCI1)) {
- /* PCI-X init */
- if (CONFIG_SYS_CLK_FREQ < 66000000)
- printf("PCI-X will only work at 66 MHz\n");
-
- reg16 = PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ
- | PCI_X_CMD_ERO | PCI_X_CMD_DPERR_E;
- pci_hose_write_config_word(hose, dev, PCIX_COMMAND, reg16);
- }
-
- pcix->potar1 = (CONFIG_SYS_PCI1_MEM_BUS >> 12) & 0x000fffff;
- pcix->potear1 = 0x00000000;
- pcix->powbar1 = (CONFIG_SYS_PCI1_MEM_PHYS >> 12) & 0x000fffff;
- pcix->powbear1 = 0x00000000;
- pcix->powar1 = (POWAR_EN | POWAR_MEM_READ |
- POWAR_MEM_WRITE | (__ilog2(CONFIG_SYS_PCI1_MEM_SIZE) - 1));
-
- pcix->potar2 = (CONFIG_SYS_PCI1_IO_BUS >> 12) & 0x000fffff;
- pcix->potear2 = 0x00000000;
- pcix->powbar2 = (CONFIG_SYS_PCI1_IO_PHYS >> 12) & 0x000fffff;
- pcix->powbear2 = 0x00000000;
- pcix->powar2 = (POWAR_EN | POWAR_IO_READ |
- POWAR_IO_WRITE | (__ilog2(CONFIG_SYS_PCI1_IO_SIZE) - 1));
-
- pcix->pitar1 = 0x00000000;
- pcix->piwbar1 = 0x00000000;
- pcix->piwar1 = (PIWAR_EN | PIWAR_PF | PIWAR_LOCAL |
- PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP | PIWAR_MEM_2G);
-
- pcix->powar3 = 0;
- pcix->powar4 = 0;
- pcix->piwar2 = 0;
- pcix->piwar3 = 0;
-
- pci_set_region(hose->regions + 0,
- CONFIG_SYS_PCI1_MEM_BUS,
- CONFIG_SYS_PCI1_MEM_PHYS,
- CONFIG_SYS_PCI1_MEM_SIZE,
- PCI_REGION_MEM);
-
- pci_set_region(hose->regions + 1,
- CONFIG_SYS_PCI1_IO_BUS,
- CONFIG_SYS_PCI1_IO_PHYS,
- CONFIG_SYS_PCI1_IO_SIZE,
- PCI_REGION_IO);
-
- hose->region_count = 2;
-
- pci_register_hose(hose);
-
-#if defined(CONFIG_MPC8555CDS) || defined(CONFIG_MPC8541CDS)
- /*
- * This is a SW workaround for an apparent HW problem
- * in the PCI controller on the MPC85555/41 CDS boards.
- * The first config cycle must be to a valid, known
- * device on the PCI bus in order to trick the PCI
- * controller state machine into a known valid state.
- * Without this, the first config cycle has the chance
- * of hanging the controller permanently, just leaving
- * it in a semi-working state, or leaving it working.
- *
- * Pick on the Tundra, Device 17, to get it right.
- */
- {
- u8 header_type;
-
- pci_hose_read_config_byte(hose,
- PCI_BDF(0,BRIDGE_ID,0),
- PCI_HEADER_TYPE,
- &header_type);
- }
-#endif
-
- hose->last_busno = pci_hose_scan(hose);
-
-#ifdef CONFIG_MPC85XX_PCI2
- hose = &pci_hose[1];
-
- hose->first_busno = pci_hose[0].last_busno + 1;
- hose->last_busno = 0xff;
-
- pci_setup_indirect(hose,
- (CONFIG_SYS_IMMR+0x9000),
- (CONFIG_SYS_IMMR+0x9004));
-
- dev = PCI_BDF(hose->first_busno, 0, 0);
- pci_hose_read_config_word (hose, dev, PCI_COMMAND, ®16);
- reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
- pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16);
-
- /*
- * Clear non-reserved bits in status register.
- */
- pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff);
-
- pcix2->potar1 = (CONFIG_SYS_PCI2_MEM_BUS >> 12) & 0x000fffff;
- pcix2->potear1 = 0x00000000;
- pcix2->powbar1 = (CONFIG_SYS_PCI2_MEM_PHYS >> 12) & 0x000fffff;
- pcix2->powbear1 = 0x00000000;
- pcix2->powar1 = (POWAR_EN | POWAR_MEM_READ |
- POWAR_MEM_WRITE | (__ilog2(CONFIG_SYS_PCI2_MEM_SIZE) - 1));
-
- pcix2->potar2 = (CONFIG_SYS_PCI2_IO_BUS >> 12) & 0x000fffff;
- pcix2->potear2 = 0x00000000;
- pcix2->powbar2 = (CONFIG_SYS_PCI2_IO_PHYS >> 12) & 0x000fffff;
- pcix2->powbear2 = 0x00000000;
- pcix2->powar2 = (POWAR_EN | POWAR_IO_READ |
- POWAR_IO_WRITE | (__ilog2(CONFIG_SYS_PCI2_IO_SIZE) - 1));
-
- pcix2->pitar1 = 0x00000000;
- pcix2->piwbar1 = 0x00000000;
- pcix2->piwar1 = (PIWAR_EN | PIWAR_PF | PIWAR_LOCAL |
- PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP | PIWAR_MEM_2G);
-
- pcix2->powar3 = 0;
- pcix2->powar4 = 0;
- pcix2->piwar2 = 0;
- pcix2->piwar3 = 0;
-
- pci_set_region(hose->regions + 0,
- CONFIG_SYS_PCI2_MEM_BUS,
- CONFIG_SYS_PCI2_MEM_PHYS,
- CONFIG_SYS_PCI2_MEM_SIZE,
- PCI_REGION_MEM);
-
- pci_set_region(hose->regions + 1,
- CONFIG_SYS_PCI2_IO_BUS,
- CONFIG_SYS_PCI2_IO_PHYS,
- CONFIG_SYS_PCI2_IO_SIZE,
- PCI_REGION_IO);
-
- hose->region_count = 2;
-
- /*
- * Hose scan.
- */
- pci_register_hose(hose);
-
- hose->last_busno = pci_hose_scan(hose);
-#endif
-}
-#endif /* !CONFIG_FSL_PCI_INIT */
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