LIBS += rtc/librtc.a
LIBS += dtt/libdtt.a
LIBS += drivers/i2c/libi2c.a
+LIBS += drivers/pci/libpci.a
LIBS += drivers/libdrivers.a
LIBS += drivers/bios_emulator/libatibiosemu.a
LIBS += drivers/nand/libnand.a
#
# PCI/PCMCIA device drivers
#
-COBJS-y += fsl_pci_init.o
COBJS-y += mpc8xx_pcmcia.o
-COBJS-y += pci.o
-COBJS-y += pci_auto.o
-COBJS-y += pci_indirect.o
COBJS-y += pxa_pcmcia.o
COBJS-y += rpx_pcmcia.o
COBJS-y += ti_pci1410a.o
COBJS-y += tqm8xx_pcmcia.o
-COBJS-y += tsi108_pci.o
-COBJS-y += w83c553f.o
#
# USB Drivers
+++ /dev/null
-/*
- * 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
- */
-
-#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;
- int inbound = 0;
- 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++;
- inbound = hose->regions[r].size > 0;
- } 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 = ~0x20140; /* Enable All Error Interupts except
- * - Master abort (pci)
- * - Master PERR (pci)
- * - ICCA (PCIe)
- */
- 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, <ssm);
- enabled = ltssm >= PCI_LTSSM_L0;
-
- if (!enabled) {
- debug("....PCIE link error. Skipping scan."
- "LTSSM=0x%02x\n", ltssm);
- 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;
- printf("...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);
-
- }
-
- /* Use generic setup_device to initialize standard pci regs,
- * but do not allocate any windows since any BAR found (such
- * as PCSRBAR) is not in this cpu's memory space.
- */
-
- pciauto_setup_device(hose, dev, 0, hose->pci_mem,
- hose->pci_prefetch, hose->pci_io);
-
- if (inbound) {
- pci_hose_read_config_word(hose, dev, PCI_COMMAND, &temp16);
- pci_hose_write_config_word(hose, dev, PCI_COMMAND,
- temp16 | PCI_COMMAND_MEMORY);
- }
-
-#ifndef CONFIG_PCI_NOSCAN
- 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);
- }
-#else
- hose->last_busno = hose->current_busno;
-#endif
-
- /* Clear all error indications */
-
- pci->pme_msg_det = 0xffffffff;
- pci->pedr = 0xffffffff;
-
- pci_hose_read_config_word (hose, dev, PCI_DSR, &temp16);
- if (temp16) {
- pci_hose_write_config_word(hose, dev,
- PCI_DSR, 0xffff);
- }
-
- pci_hose_read_config_word (hose, dev, PCI_SEC_STATUS, &temp16);
- if (temp16) {
- pci_hose_write_config_word(hose, dev, PCI_SEC_STATUS, 0xffff);
- }
-}
-
-#endif /* CONFIG_FSL_PCI */
+++ /dev/null
-/*
- * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Andreas Heppel <aheppel@sysgo.de>
- *
- * (C) Copyright 2002, 2003
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * 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 routines
- */
-
-#include <common.h>
-
-#ifdef CONFIG_PCI
-
-#include <command.h>
-#include <asm/processor.h>
-#include <asm/io.h>
-#include <pci.h>
-
-#define PCI_HOSE_OP(rw, size, type) \
-int pci_hose_##rw##_config_##size(struct pci_controller *hose, \
- pci_dev_t dev, \
- int offset, type value) \
-{ \
- return hose->rw##_##size(hose, dev, offset, value); \
-}
-
-PCI_HOSE_OP(read, byte, u8 *)
-PCI_HOSE_OP(read, word, u16 *)
-PCI_HOSE_OP(read, dword, u32 *)
-PCI_HOSE_OP(write, byte, u8)
-PCI_HOSE_OP(write, word, u16)
-PCI_HOSE_OP(write, dword, u32)
-
-#ifndef CONFIG_IXP425
-#define PCI_OP(rw, size, type, error_code) \
-int pci_##rw##_config_##size(pci_dev_t dev, int offset, type value) \
-{ \
- struct pci_controller *hose = pci_bus_to_hose(PCI_BUS(dev)); \
- \
- if (!hose) \
- { \
- error_code; \
- return -1; \
- } \
- \
- return pci_hose_##rw##_config_##size(hose, dev, offset, value); \
-}
-
-PCI_OP(read, byte, u8 *, *value = 0xff)
-PCI_OP(read, word, u16 *, *value = 0xffff)
-PCI_OP(read, dword, u32 *, *value = 0xffffffff)
-PCI_OP(write, byte, u8, )
-PCI_OP(write, word, u16, )
-PCI_OP(write, dword, u32, )
-#endif /* CONFIG_IXP425 */
-
-#define PCI_READ_VIA_DWORD_OP(size, type, off_mask) \
-int pci_hose_read_config_##size##_via_dword(struct pci_controller *hose,\
- pci_dev_t dev, \
- int offset, type val) \
-{ \
- u32 val32; \
- \
- if (pci_hose_read_config_dword(hose, dev, offset & 0xfc, &val32) < 0) { \
- *val = -1; \
- return -1; \
- } \
- \
- *val = (val32 >> ((offset & (int)off_mask) * 8)); \
- \
- return 0; \
-}
-
-#define PCI_WRITE_VIA_DWORD_OP(size, type, off_mask, val_mask) \
-int pci_hose_write_config_##size##_via_dword(struct pci_controller *hose,\
- pci_dev_t dev, \
- int offset, type val) \
-{ \
- u32 val32, mask, ldata, shift; \
- \
- if (pci_hose_read_config_dword(hose, dev, offset & 0xfc, &val32) < 0)\
- return -1; \
- \
- shift = ((offset & (int)off_mask) * 8); \
- ldata = (((unsigned long)val) & val_mask) << shift; \
- mask = val_mask << shift; \
- val32 = (val32 & ~mask) | ldata; \
- \
- if (pci_hose_write_config_dword(hose, dev, offset & 0xfc, val32) < 0)\
- return -1; \
- \
- return 0; \
-}
-
-PCI_READ_VIA_DWORD_OP(byte, u8 *, 0x03)
-PCI_READ_VIA_DWORD_OP(word, u16 *, 0x02)
-PCI_WRITE_VIA_DWORD_OP(byte, u8, 0x03, 0x000000ff)
-PCI_WRITE_VIA_DWORD_OP(word, u16, 0x02, 0x0000ffff)
-
-/*
- *
- */
-
-static struct pci_controller* hose_head = NULL;
-
-void pci_register_hose(struct pci_controller* hose)
-{
- struct pci_controller **phose = &hose_head;
-
- while(*phose)
- phose = &(*phose)->next;
-
- hose->next = NULL;
-
- *phose = hose;
-}
-
-struct pci_controller *pci_bus_to_hose (int bus)
-{
- struct pci_controller *hose;
-
- for (hose = hose_head; hose; hose = hose->next)
- if (bus >= hose->first_busno && bus <= hose->last_busno)
- return hose;
-
- printf("pci_bus_to_hose() failed\n");
- return NULL;
-}
-
-#ifndef CONFIG_IXP425
-pci_dev_t pci_find_devices(struct pci_device_id *ids, int index)
-{
- struct pci_controller * hose;
- u16 vendor, device;
- u8 header_type;
- pci_dev_t bdf;
- int i, bus, found_multi = 0;
-
- for (hose = hose_head; hose; hose = hose->next)
- {
-#ifdef CFG_SCSI_SCAN_BUS_REVERSE
- for (bus = hose->last_busno; bus >= hose->first_busno; bus--)
-#else
- for (bus = hose->first_busno; bus <= hose->last_busno; bus++)
-#endif
- for (bdf = PCI_BDF(bus,0,0);
-#if defined(CONFIG_ELPPC) || defined(CONFIG_PPMC7XX)
- bdf < PCI_BDF(bus,PCI_MAX_PCI_DEVICES-1,PCI_MAX_PCI_FUNCTIONS-1);
-#else
- bdf < PCI_BDF(bus+1,0,0);
-#endif
- bdf += PCI_BDF(0,0,1))
- {
- if (!PCI_FUNC(bdf)) {
- pci_read_config_byte(bdf,
- PCI_HEADER_TYPE,
- &header_type);
-
- found_multi = header_type & 0x80;
- } else {
- if (!found_multi)
- continue;
- }
-
- pci_read_config_word(bdf,
- PCI_VENDOR_ID,
- &vendor);
- pci_read_config_word(bdf,
- PCI_DEVICE_ID,
- &device);
-
- for (i=0; ids[i].vendor != 0; i++)
- if (vendor == ids[i].vendor &&
- device == ids[i].device)
- {
- if (index <= 0)
- return bdf;
-
- index--;
- }
- }
- }
-
- return (-1);
-}
-#endif /* CONFIG_IXP425 */
-
-pci_dev_t pci_find_device(unsigned int vendor, unsigned int device, int index)
-{
- static struct pci_device_id ids[2] = {{}, {0, 0}};
-
- ids[0].vendor = vendor;
- ids[0].device = device;
-
- return pci_find_devices(ids, index);
-}
-
-/*
- *
- */
-
-unsigned long pci_hose_phys_to_bus (struct pci_controller *hose,
- unsigned long phys_addr,
- unsigned long flags)
-{
- struct pci_region *res;
- unsigned long bus_addr;
- int i;
-
- if (!hose) {
- printf ("pci_hose_phys_to_bus: %s\n", "invalid hose");
- goto Done;
- }
-
- for (i = 0; i < hose->region_count; i++) {
- res = &hose->regions[i];
-
- if (((res->flags ^ flags) & PCI_REGION_TYPE) != 0)
- continue;
-
- bus_addr = phys_addr - res->phys_start + res->bus_start;
-
- if (bus_addr >= res->bus_start &&
- bus_addr < res->bus_start + res->size) {
- return bus_addr;
- }
- }
-
- printf ("pci_hose_phys_to_bus: %s\n", "invalid physical address");
-
-Done:
- return 0;
-}
-
-unsigned long pci_hose_bus_to_phys(struct pci_controller* hose,
- unsigned long bus_addr,
- unsigned long flags)
-{
- struct pci_region *res;
- int i;
-
- if (!hose) {
- printf ("pci_hose_bus_to_phys: %s\n", "invalid hose");
- goto Done;
- }
-
- for (i = 0; i < hose->region_count; i++) {
- res = &hose->regions[i];
-
- if (((res->flags ^ flags) & PCI_REGION_TYPE) != 0)
- continue;
-
- if (bus_addr >= res->bus_start &&
- bus_addr < res->bus_start + res->size) {
- return bus_addr - res->bus_start + res->phys_start;
- }
- }
-
- printf ("pci_hose_bus_to_phys: %s\n", "invalid physical address");
-
-Done:
- return 0;
-}
-
-/*
- *
- */
-
-int pci_hose_config_device(struct pci_controller *hose,
- pci_dev_t dev,
- unsigned long io,
- unsigned long mem,
- unsigned long command)
-{
- unsigned int bar_response, bar_size, bar_value, old_command;
- unsigned char pin;
- int bar, found_mem64;
-
- debug ("PCI Config: I/O=0x%lx, Memory=0x%lx, Command=0x%lx\n",
- io, mem, command);
-
- pci_hose_write_config_dword (hose, dev, PCI_COMMAND, 0);
-
- for (bar = PCI_BASE_ADDRESS_0; bar < PCI_BASE_ADDRESS_5; bar += 4) {
- pci_hose_write_config_dword (hose, dev, bar, 0xffffffff);
- pci_hose_read_config_dword (hose, dev, bar, &bar_response);
-
- if (!bar_response)
- continue;
-
- found_mem64 = 0;
-
- /* Check the BAR type and set our address mask */
- if (bar_response & PCI_BASE_ADDRESS_SPACE) {
- bar_size = ~(bar_response & PCI_BASE_ADDRESS_IO_MASK) + 1;
- /* round up region base address to a multiple of size */
- io = ((io - 1) | (bar_size - 1)) + 1;
- bar_value = io;
- /* compute new region base address */
- io = io + bar_size;
- } else {
- if ((bar_response & PCI_BASE_ADDRESS_MEM_TYPE_MASK) ==
- PCI_BASE_ADDRESS_MEM_TYPE_64)
- found_mem64 = 1;
-
- bar_size = ~(bar_response & PCI_BASE_ADDRESS_MEM_MASK) + 1;
-
- /* round up region base address to multiple of size */
- mem = ((mem - 1) | (bar_size - 1)) + 1;
- bar_value = mem;
- /* compute new region base address */
- mem = mem + bar_size;
- }
-
- /* Write it out and update our limit */
- pci_hose_write_config_dword (hose, dev, bar, bar_value);
-
- if (found_mem64) {
- bar += 4;
- pci_hose_write_config_dword (hose, dev, bar, 0x00000000);
- }
- }
-
- /* Configure Cache Line Size Register */
- pci_hose_write_config_byte (hose, dev, PCI_CACHE_LINE_SIZE, 0x08);
-
- /* Configure Latency Timer */
- pci_hose_write_config_byte (hose, dev, PCI_LATENCY_TIMER, 0x80);
-
- /* Disable interrupt line, if device says it wants to use interrupts */
- pci_hose_read_config_byte (hose, dev, PCI_INTERRUPT_PIN, &pin);
- if (pin != 0) {
- pci_hose_write_config_byte (hose, dev, PCI_INTERRUPT_LINE, 0xff);
- }
-
- pci_hose_read_config_dword (hose, dev, PCI_COMMAND, &old_command);
- pci_hose_write_config_dword (hose, dev, PCI_COMMAND,
- (old_command & 0xffff0000) | command);
-
- return 0;
-}
-
-/*
- *
- */
-
-struct pci_config_table *pci_find_config(struct pci_controller *hose,
- unsigned short class,
- unsigned int vendor,
- unsigned int device,
- unsigned int bus,
- unsigned int dev,
- unsigned int func)
-{
- struct pci_config_table *table;
-
- for (table = hose->config_table; table && table->vendor; table++) {
- if ((table->vendor == PCI_ANY_ID || table->vendor == vendor) &&
- (table->device == PCI_ANY_ID || table->device == device) &&
- (table->class == PCI_ANY_ID || table->class == class) &&
- (table->bus == PCI_ANY_ID || table->bus == bus) &&
- (table->dev == PCI_ANY_ID || table->dev == dev) &&
- (table->func == PCI_ANY_ID || table->func == func)) {
- return table;
- }
- }
-
- return NULL;
-}
-
-void pci_cfgfunc_config_device(struct pci_controller *hose,
- pci_dev_t dev,
- struct pci_config_table *entry)
-{
- pci_hose_config_device(hose, dev, entry->priv[0], entry->priv[1], entry->priv[2]);
-}
-
-void pci_cfgfunc_do_nothing(struct pci_controller *hose,
- pci_dev_t dev, struct pci_config_table *entry)
-{
-}
-
-/*
- *
- */
-
-/* HJF: Changed this to return int. I think this is required
- * to get the correct result when scanning bridges
- */
-extern int pciauto_config_device(struct pci_controller *hose, pci_dev_t dev);
-extern void pciauto_config_init(struct pci_controller *hose);
-
-int pci_hose_scan_bus(struct pci_controller *hose, int bus)
-{
- unsigned int sub_bus, found_multi=0;
- unsigned short vendor, device, class;
- unsigned char header_type;
- struct pci_config_table *cfg;
- pci_dev_t dev;
-
- sub_bus = bus;
-
- for (dev = PCI_BDF(bus,0,0);
- dev < PCI_BDF(bus,PCI_MAX_PCI_DEVICES-1,PCI_MAX_PCI_FUNCTIONS-1);
- dev += PCI_BDF(0,0,1))
- {
- /* Skip our host bridge */
- if ( dev == PCI_BDF(hose->first_busno,0,0) ) {
-#if defined(CONFIG_PCI_CONFIG_HOST_BRIDGE) /* don't skip host bridge */
- /*
- * Only skip hostbridge configuration if "pciconfighost" is not set
- */
- if (getenv("pciconfighost") == NULL) {
- continue; /* Skip our host bridge */
- }
-#else
- continue; /* Skip our host bridge */
-#endif
- }
-
- if (PCI_FUNC(dev) && !found_multi)
- continue;
-
- pci_hose_read_config_byte(hose, dev, PCI_HEADER_TYPE, &header_type);
-
- pci_hose_read_config_word(hose, dev, PCI_VENDOR_ID, &vendor);
-
- if (vendor != 0xffff && vendor != 0x0000) {
-
- if (!PCI_FUNC(dev))
- found_multi = header_type & 0x80;
-
- debug ("PCI Scan: Found Bus %d, Device %d, Function %d\n",
- PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev) );
-
- pci_hose_read_config_word(hose, dev, PCI_DEVICE_ID, &device);
- pci_hose_read_config_word(hose, dev, PCI_CLASS_DEVICE, &class);
-
- cfg = pci_find_config(hose, class, vendor, device,
- PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev));
- if (cfg) {
- cfg->config_device(hose, dev, cfg);
- sub_bus = max(sub_bus, hose->current_busno);
-#ifdef CONFIG_PCI_PNP
- } else {
- int n = pciauto_config_device(hose, dev);
-
- sub_bus = max(sub_bus, n);
-#endif
- }
- if (hose->fixup_irq)
- hose->fixup_irq(hose, dev);
-
-#ifdef CONFIG_PCI_SCAN_SHOW
- /* Skip our host bridge */
- if ( dev != PCI_BDF(hose->first_busno,0,0) ) {
- unsigned char int_line;
-
- pci_hose_read_config_byte(hose, dev, PCI_INTERRUPT_LINE,
- &int_line);
- printf(" %02x %02x %04x %04x %04x %02x\n",
- PCI_BUS(dev), PCI_DEV(dev), vendor, device, class,
- int_line);
- }
-#endif
- }
- }
-
- return sub_bus;
-}
-
-int pci_hose_scan(struct pci_controller *hose)
-{
- /* Start scan at current_busno.
- * PCIe will start scan at first_busno+1.
- */
- /* For legacy support, ensure current>=first */
- if (hose->first_busno > hose->current_busno)
- hose->current_busno = hose->first_busno;
-#ifdef CONFIG_PCI_PNP
- pciauto_config_init(hose);
-#endif
- return pci_hose_scan_bus(hose, hose->current_busno);
-}
-
-void pci_init(void)
-{
-#if defined(CONFIG_PCI_BOOTDELAY)
- char *s;
- int i;
-
- /* wait "pcidelay" ms (if defined)... */
- s = getenv ("pcidelay");
- if (s) {
- int val = simple_strtoul (s, NULL, 10);
- for (i=0; i<val; i++)
- udelay (1000);
- }
-#endif /* CONFIG_PCI_BOOTDELAY */
-
- /* now call board specific pci_init()... */
- pci_init_board();
-}
-
-#endif /* CONFIG_PCI */
--- /dev/null
+#
+# (C) Copyright 2000-2007
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# 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 $(TOPDIR)/config.mk
+
+LIB := $(obj)libpci.a
+
+COBJS-y += fsl_pci_init.o
+COBJS-y += pci.o
+COBJS-y += pci_auto.o
+COBJS-y += pci_indirect.o
+COBJS-y += tsi108_pci.o
+COBJS-y += w83c553f.o
+
+COBJS := $(COBJS-y)
+SRCS := $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+
+all: $(LIB)
+
+$(LIB): $(obj).depend $(OBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS)
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
--- /dev/null
+/*
+ * 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
+ */
+
+#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;
+ int inbound = 0;
+ 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++;
+ inbound = hose->regions[r].size > 0;
+ } 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 = ~0x20140; /* Enable All Error Interupts except
+ * - Master abort (pci)
+ * - Master PERR (pci)
+ * - ICCA (PCIe)
+ */
+ 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, <ssm);
+ enabled = ltssm >= PCI_LTSSM_L0;
+
+ if (!enabled) {
+ debug("....PCIE link error. Skipping scan."
+ "LTSSM=0x%02x\n", ltssm);
+ 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;
+ printf("...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);
+
+ }
+
+ /* Use generic setup_device to initialize standard pci regs,
+ * but do not allocate any windows since any BAR found (such
+ * as PCSRBAR) is not in this cpu's memory space.
+ */
+
+ pciauto_setup_device(hose, dev, 0, hose->pci_mem,
+ hose->pci_prefetch, hose->pci_io);
+
+ if (inbound) {
+ pci_hose_read_config_word(hose, dev, PCI_COMMAND, &temp16);
+ pci_hose_write_config_word(hose, dev, PCI_COMMAND,
+ temp16 | PCI_COMMAND_MEMORY);
+ }
+
+#ifndef CONFIG_PCI_NOSCAN
+ 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);
+ }
+#else
+ hose->last_busno = hose->current_busno;
+#endif
+
+ /* Clear all error indications */
+
+ pci->pme_msg_det = 0xffffffff;
+ pci->pedr = 0xffffffff;
+
+ pci_hose_read_config_word (hose, dev, PCI_DSR, &temp16);
+ if (temp16) {
+ pci_hose_write_config_word(hose, dev,
+ PCI_DSR, 0xffff);
+ }
+
+ pci_hose_read_config_word (hose, dev, PCI_SEC_STATUS, &temp16);
+ if (temp16) {
+ pci_hose_write_config_word(hose, dev, PCI_SEC_STATUS, 0xffff);
+ }
+}
+
+#endif /* CONFIG_FSL_PCI */
--- /dev/null
+/*
+ * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Andreas Heppel <aheppel@sysgo.de>
+ *
+ * (C) Copyright 2002, 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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 routines
+ */
+
+#include <common.h>
+
+#ifdef CONFIG_PCI
+
+#include <command.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <pci.h>
+
+#define PCI_HOSE_OP(rw, size, type) \
+int pci_hose_##rw##_config_##size(struct pci_controller *hose, \
+ pci_dev_t dev, \
+ int offset, type value) \
+{ \
+ return hose->rw##_##size(hose, dev, offset, value); \
+}
+
+PCI_HOSE_OP(read, byte, u8 *)
+PCI_HOSE_OP(read, word, u16 *)
+PCI_HOSE_OP(read, dword, u32 *)
+PCI_HOSE_OP(write, byte, u8)
+PCI_HOSE_OP(write, word, u16)
+PCI_HOSE_OP(write, dword, u32)
+
+#ifndef CONFIG_IXP425
+#define PCI_OP(rw, size, type, error_code) \
+int pci_##rw##_config_##size(pci_dev_t dev, int offset, type value) \
+{ \
+ struct pci_controller *hose = pci_bus_to_hose(PCI_BUS(dev)); \
+ \
+ if (!hose) \
+ { \
+ error_code; \
+ return -1; \
+ } \
+ \
+ return pci_hose_##rw##_config_##size(hose, dev, offset, value); \
+}
+
+PCI_OP(read, byte, u8 *, *value = 0xff)
+PCI_OP(read, word, u16 *, *value = 0xffff)
+PCI_OP(read, dword, u32 *, *value = 0xffffffff)
+PCI_OP(write, byte, u8, )
+PCI_OP(write, word, u16, )
+PCI_OP(write, dword, u32, )
+#endif /* CONFIG_IXP425 */
+
+#define PCI_READ_VIA_DWORD_OP(size, type, off_mask) \
+int pci_hose_read_config_##size##_via_dword(struct pci_controller *hose,\
+ pci_dev_t dev, \
+ int offset, type val) \
+{ \
+ u32 val32; \
+ \
+ if (pci_hose_read_config_dword(hose, dev, offset & 0xfc, &val32) < 0) { \
+ *val = -1; \
+ return -1; \
+ } \
+ \
+ *val = (val32 >> ((offset & (int)off_mask) * 8)); \
+ \
+ return 0; \
+}
+
+#define PCI_WRITE_VIA_DWORD_OP(size, type, off_mask, val_mask) \
+int pci_hose_write_config_##size##_via_dword(struct pci_controller *hose,\
+ pci_dev_t dev, \
+ int offset, type val) \
+{ \
+ u32 val32, mask, ldata, shift; \
+ \
+ if (pci_hose_read_config_dword(hose, dev, offset & 0xfc, &val32) < 0)\
+ return -1; \
+ \
+ shift = ((offset & (int)off_mask) * 8); \
+ ldata = (((unsigned long)val) & val_mask) << shift; \
+ mask = val_mask << shift; \
+ val32 = (val32 & ~mask) | ldata; \
+ \
+ if (pci_hose_write_config_dword(hose, dev, offset & 0xfc, val32) < 0)\
+ return -1; \
+ \
+ return 0; \
+}
+
+PCI_READ_VIA_DWORD_OP(byte, u8 *, 0x03)
+PCI_READ_VIA_DWORD_OP(word, u16 *, 0x02)
+PCI_WRITE_VIA_DWORD_OP(byte, u8, 0x03, 0x000000ff)
+PCI_WRITE_VIA_DWORD_OP(word, u16, 0x02, 0x0000ffff)
+
+/*
+ *
+ */
+
+static struct pci_controller* hose_head = NULL;
+
+void pci_register_hose(struct pci_controller* hose)
+{
+ struct pci_controller **phose = &hose_head;
+
+ while(*phose)
+ phose = &(*phose)->next;
+
+ hose->next = NULL;
+
+ *phose = hose;
+}
+
+struct pci_controller *pci_bus_to_hose (int bus)
+{
+ struct pci_controller *hose;
+
+ for (hose = hose_head; hose; hose = hose->next)
+ if (bus >= hose->first_busno && bus <= hose->last_busno)
+ return hose;
+
+ printf("pci_bus_to_hose() failed\n");
+ return NULL;
+}
+
+#ifndef CONFIG_IXP425
+pci_dev_t pci_find_devices(struct pci_device_id *ids, int index)
+{
+ struct pci_controller * hose;
+ u16 vendor, device;
+ u8 header_type;
+ pci_dev_t bdf;
+ int i, bus, found_multi = 0;
+
+ for (hose = hose_head; hose; hose = hose->next)
+ {
+#ifdef CFG_SCSI_SCAN_BUS_REVERSE
+ for (bus = hose->last_busno; bus >= hose->first_busno; bus--)
+#else
+ for (bus = hose->first_busno; bus <= hose->last_busno; bus++)
+#endif
+ for (bdf = PCI_BDF(bus,0,0);
+#if defined(CONFIG_ELPPC) || defined(CONFIG_PPMC7XX)
+ bdf < PCI_BDF(bus,PCI_MAX_PCI_DEVICES-1,PCI_MAX_PCI_FUNCTIONS-1);
+#else
+ bdf < PCI_BDF(bus+1,0,0);
+#endif
+ bdf += PCI_BDF(0,0,1))
+ {
+ if (!PCI_FUNC(bdf)) {
+ pci_read_config_byte(bdf,
+ PCI_HEADER_TYPE,
+ &header_type);
+
+ found_multi = header_type & 0x80;
+ } else {
+ if (!found_multi)
+ continue;
+ }
+
+ pci_read_config_word(bdf,
+ PCI_VENDOR_ID,
+ &vendor);
+ pci_read_config_word(bdf,
+ PCI_DEVICE_ID,
+ &device);
+
+ for (i=0; ids[i].vendor != 0; i++)
+ if (vendor == ids[i].vendor &&
+ device == ids[i].device)
+ {
+ if (index <= 0)
+ return bdf;
+
+ index--;
+ }
+ }
+ }
+
+ return (-1);
+}
+#endif /* CONFIG_IXP425 */
+
+pci_dev_t pci_find_device(unsigned int vendor, unsigned int device, int index)
+{
+ static struct pci_device_id ids[2] = {{}, {0, 0}};
+
+ ids[0].vendor = vendor;
+ ids[0].device = device;
+
+ return pci_find_devices(ids, index);
+}
+
+/*
+ *
+ */
+
+unsigned long pci_hose_phys_to_bus (struct pci_controller *hose,
+ unsigned long phys_addr,
+ unsigned long flags)
+{
+ struct pci_region *res;
+ unsigned long bus_addr;
+ int i;
+
+ if (!hose) {
+ printf ("pci_hose_phys_to_bus: %s\n", "invalid hose");
+ goto Done;
+ }
+
+ for (i = 0; i < hose->region_count; i++) {
+ res = &hose->regions[i];
+
+ if (((res->flags ^ flags) & PCI_REGION_TYPE) != 0)
+ continue;
+
+ bus_addr = phys_addr - res->phys_start + res->bus_start;
+
+ if (bus_addr >= res->bus_start &&
+ bus_addr < res->bus_start + res->size) {
+ return bus_addr;
+ }
+ }
+
+ printf ("pci_hose_phys_to_bus: %s\n", "invalid physical address");
+
+Done:
+ return 0;
+}
+
+unsigned long pci_hose_bus_to_phys(struct pci_controller* hose,
+ unsigned long bus_addr,
+ unsigned long flags)
+{
+ struct pci_region *res;
+ int i;
+
+ if (!hose) {
+ printf ("pci_hose_bus_to_phys: %s\n", "invalid hose");
+ goto Done;
+ }
+
+ for (i = 0; i < hose->region_count; i++) {
+ res = &hose->regions[i];
+
+ if (((res->flags ^ flags) & PCI_REGION_TYPE) != 0)
+ continue;
+
+ if (bus_addr >= res->bus_start &&
+ bus_addr < res->bus_start + res->size) {
+ return bus_addr - res->bus_start + res->phys_start;
+ }
+ }
+
+ printf ("pci_hose_bus_to_phys: %s\n", "invalid physical address");
+
+Done:
+ return 0;
+}
+
+/*
+ *
+ */
+
+int pci_hose_config_device(struct pci_controller *hose,
+ pci_dev_t dev,
+ unsigned long io,
+ unsigned long mem,
+ unsigned long command)
+{
+ unsigned int bar_response, bar_size, bar_value, old_command;
+ unsigned char pin;
+ int bar, found_mem64;
+
+ debug ("PCI Config: I/O=0x%lx, Memory=0x%lx, Command=0x%lx\n",
+ io, mem, command);
+
+ pci_hose_write_config_dword (hose, dev, PCI_COMMAND, 0);
+
+ for (bar = PCI_BASE_ADDRESS_0; bar < PCI_BASE_ADDRESS_5; bar += 4) {
+ pci_hose_write_config_dword (hose, dev, bar, 0xffffffff);
+ pci_hose_read_config_dword (hose, dev, bar, &bar_response);
+
+ if (!bar_response)
+ continue;
+
+ found_mem64 = 0;
+
+ /* Check the BAR type and set our address mask */
+ if (bar_response & PCI_BASE_ADDRESS_SPACE) {
+ bar_size = ~(bar_response & PCI_BASE_ADDRESS_IO_MASK) + 1;
+ /* round up region base address to a multiple of size */
+ io = ((io - 1) | (bar_size - 1)) + 1;
+ bar_value = io;
+ /* compute new region base address */
+ io = io + bar_size;
+ } else {
+ if ((bar_response & PCI_BASE_ADDRESS_MEM_TYPE_MASK) ==
+ PCI_BASE_ADDRESS_MEM_TYPE_64)
+ found_mem64 = 1;
+
+ bar_size = ~(bar_response & PCI_BASE_ADDRESS_MEM_MASK) + 1;
+
+ /* round up region base address to multiple of size */
+ mem = ((mem - 1) | (bar_size - 1)) + 1;
+ bar_value = mem;
+ /* compute new region base address */
+ mem = mem + bar_size;
+ }
+
+ /* Write it out and update our limit */
+ pci_hose_write_config_dword (hose, dev, bar, bar_value);
+
+ if (found_mem64) {
+ bar += 4;
+ pci_hose_write_config_dword (hose, dev, bar, 0x00000000);
+ }
+ }
+
+ /* Configure Cache Line Size Register */
+ pci_hose_write_config_byte (hose, dev, PCI_CACHE_LINE_SIZE, 0x08);
+
+ /* Configure Latency Timer */
+ pci_hose_write_config_byte (hose, dev, PCI_LATENCY_TIMER, 0x80);
+
+ /* Disable interrupt line, if device says it wants to use interrupts */
+ pci_hose_read_config_byte (hose, dev, PCI_INTERRUPT_PIN, &pin);
+ if (pin != 0) {
+ pci_hose_write_config_byte (hose, dev, PCI_INTERRUPT_LINE, 0xff);
+ }
+
+ pci_hose_read_config_dword (hose, dev, PCI_COMMAND, &old_command);
+ pci_hose_write_config_dword (hose, dev, PCI_COMMAND,
+ (old_command & 0xffff0000) | command);
+
+ return 0;
+}
+
+/*
+ *
+ */
+
+struct pci_config_table *pci_find_config(struct pci_controller *hose,
+ unsigned short class,
+ unsigned int vendor,
+ unsigned int device,
+ unsigned int bus,
+ unsigned int dev,
+ unsigned int func)
+{
+ struct pci_config_table *table;
+
+ for (table = hose->config_table; table && table->vendor; table++) {
+ if ((table->vendor == PCI_ANY_ID || table->vendor == vendor) &&
+ (table->device == PCI_ANY_ID || table->device == device) &&
+ (table->class == PCI_ANY_ID || table->class == class) &&
+ (table->bus == PCI_ANY_ID || table->bus == bus) &&
+ (table->dev == PCI_ANY_ID || table->dev == dev) &&
+ (table->func == PCI_ANY_ID || table->func == func)) {
+ return table;
+ }
+ }
+
+ return NULL;
+}
+
+void pci_cfgfunc_config_device(struct pci_controller *hose,
+ pci_dev_t dev,
+ struct pci_config_table *entry)
+{
+ pci_hose_config_device(hose, dev, entry->priv[0], entry->priv[1], entry->priv[2]);
+}
+
+void pci_cfgfunc_do_nothing(struct pci_controller *hose,
+ pci_dev_t dev, struct pci_config_table *entry)
+{
+}
+
+/*
+ *
+ */
+
+/* HJF: Changed this to return int. I think this is required
+ * to get the correct result when scanning bridges
+ */
+extern int pciauto_config_device(struct pci_controller *hose, pci_dev_t dev);
+extern void pciauto_config_init(struct pci_controller *hose);
+
+int pci_hose_scan_bus(struct pci_controller *hose, int bus)
+{
+ unsigned int sub_bus, found_multi=0;
+ unsigned short vendor, device, class;
+ unsigned char header_type;
+ struct pci_config_table *cfg;
+ pci_dev_t dev;
+
+ sub_bus = bus;
+
+ for (dev = PCI_BDF(bus,0,0);
+ dev < PCI_BDF(bus,PCI_MAX_PCI_DEVICES-1,PCI_MAX_PCI_FUNCTIONS-1);
+ dev += PCI_BDF(0,0,1))
+ {
+ /* Skip our host bridge */
+ if ( dev == PCI_BDF(hose->first_busno,0,0) ) {
+#if defined(CONFIG_PCI_CONFIG_HOST_BRIDGE) /* don't skip host bridge */
+ /*
+ * Only skip hostbridge configuration if "pciconfighost" is not set
+ */
+ if (getenv("pciconfighost") == NULL) {
+ continue; /* Skip our host bridge */
+ }
+#else
+ continue; /* Skip our host bridge */
+#endif
+ }
+
+ if (PCI_FUNC(dev) && !found_multi)
+ continue;
+
+ pci_hose_read_config_byte(hose, dev, PCI_HEADER_TYPE, &header_type);
+
+ pci_hose_read_config_word(hose, dev, PCI_VENDOR_ID, &vendor);
+
+ if (vendor != 0xffff && vendor != 0x0000) {
+
+ if (!PCI_FUNC(dev))
+ found_multi = header_type & 0x80;
+
+ debug ("PCI Scan: Found Bus %d, Device %d, Function %d\n",
+ PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev) );
+
+ pci_hose_read_config_word(hose, dev, PCI_DEVICE_ID, &device);
+ pci_hose_read_config_word(hose, dev, PCI_CLASS_DEVICE, &class);
+
+ cfg = pci_find_config(hose, class, vendor, device,
+ PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev));
+ if (cfg) {
+ cfg->config_device(hose, dev, cfg);
+ sub_bus = max(sub_bus, hose->current_busno);
+#ifdef CONFIG_PCI_PNP
+ } else {
+ int n = pciauto_config_device(hose, dev);
+
+ sub_bus = max(sub_bus, n);
+#endif
+ }
+ if (hose->fixup_irq)
+ hose->fixup_irq(hose, dev);
+
+#ifdef CONFIG_PCI_SCAN_SHOW
+ /* Skip our host bridge */
+ if ( dev != PCI_BDF(hose->first_busno,0,0) ) {
+ unsigned char int_line;
+
+ pci_hose_read_config_byte(hose, dev, PCI_INTERRUPT_LINE,
+ &int_line);
+ printf(" %02x %02x %04x %04x %04x %02x\n",
+ PCI_BUS(dev), PCI_DEV(dev), vendor, device, class,
+ int_line);
+ }
+#endif
+ }
+ }
+
+ return sub_bus;
+}
+
+int pci_hose_scan(struct pci_controller *hose)
+{
+ /* Start scan at current_busno.
+ * PCIe will start scan at first_busno+1.
+ */
+ /* For legacy support, ensure current>=first */
+ if (hose->first_busno > hose->current_busno)
+ hose->current_busno = hose->first_busno;
+#ifdef CONFIG_PCI_PNP
+ pciauto_config_init(hose);
+#endif
+ return pci_hose_scan_bus(hose, hose->current_busno);
+}
+
+void pci_init(void)
+{
+#if defined(CONFIG_PCI_BOOTDELAY)
+ char *s;
+ int i;
+
+ /* wait "pcidelay" ms (if defined)... */
+ s = getenv ("pcidelay");
+ if (s) {
+ int val = simple_strtoul (s, NULL, 10);
+ for (i=0; i<val; i++)
+ udelay (1000);
+ }
+#endif /* CONFIG_PCI_BOOTDELAY */
+
+ /* now call board specific pci_init()... */
+ pci_init_board();
+}
+
+#endif /* CONFIG_PCI */
--- /dev/null
+/*
+ * arch/ppc/kernel/pci_auto.c
+ *
+ * PCI autoconfiguration library
+ *
+ * Author: Matt Porter <mporter@mvista.com>
+ *
+ * Copyright 2000 MontaVista Software 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.
+ */
+
+#include <common.h>
+
+#ifdef CONFIG_PCI
+
+#include <pci.h>
+
+#undef DEBUG
+#ifdef DEBUG
+#define DEBUGF(x...) printf(x)
+#else
+#define DEBUGF(x...)
+#endif /* DEBUG */
+
+#define PCIAUTO_IDE_MODE_MASK 0x05
+
+/* the user can define CFG_PCI_CACHE_LINE_SIZE to avoid problems */
+#ifndef CFG_PCI_CACHE_LINE_SIZE
+#define CFG_PCI_CACHE_LINE_SIZE 8
+#endif
+
+/*
+ *
+ */
+
+void pciauto_region_init(struct pci_region* res)
+{
+ /*
+ * Avoid allocating PCI resources from address 0 -- this is illegal
+ * according to PCI 2.1 and moreover, this is known to cause Linux IDE
+ * drivers to fail. Use a reasonable starting value of 0x1000 instead.
+ */
+ res->bus_lower = res->bus_start ? res->bus_start : 0x1000;
+}
+
+void pciauto_region_align(struct pci_region *res, unsigned long size)
+{
+ res->bus_lower = ((res->bus_lower - 1) | (size - 1)) + 1;
+}
+
+int pciauto_region_allocate(struct pci_region* res, unsigned int size, unsigned int *bar)
+{
+ unsigned long addr;
+
+ if (!res) {
+ DEBUGF("No resource");
+ goto error;
+ }
+
+ addr = ((res->bus_lower - 1) | (size - 1)) + 1;
+
+ if (addr - res->bus_start + size > res->size) {
+ DEBUGF("No room in resource");
+ goto error;
+ }
+
+ res->bus_lower = addr + size;
+
+ DEBUGF("address=0x%lx bus_lower=%x", addr, res->bus_lower);
+
+ *bar = addr;
+ return 0;
+
+ error:
+ *bar = 0xffffffff;
+ return -1;
+}
+
+/*
+ *
+ */
+
+void pciauto_setup_device(struct pci_controller *hose,
+ pci_dev_t dev, int bars_num,
+ struct pci_region *mem,
+ struct pci_region *prefetch,
+ struct pci_region *io)
+{
+ unsigned int bar_value, bar_response, bar_size;
+ unsigned int cmdstat = 0;
+ struct pci_region *bar_res;
+ int bar, bar_nr = 0;
+ int found_mem64 = 0;
+
+ pci_hose_read_config_dword(hose, dev, PCI_COMMAND, &cmdstat);
+ cmdstat = (cmdstat & ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) | PCI_COMMAND_MASTER;
+
+ for (bar = PCI_BASE_ADDRESS_0; bar < PCI_BASE_ADDRESS_0 + (bars_num*4); bar += 4) {
+ /* Tickle the BAR and get the response */
+ pci_hose_write_config_dword(hose, dev, bar, 0xffffffff);
+ pci_hose_read_config_dword(hose, dev, bar, &bar_response);
+
+ /* If BAR is not implemented go to the next BAR */
+ if (!bar_response)
+ continue;
+
+ found_mem64 = 0;
+
+ /* Check the BAR type and set our address mask */
+ if (bar_response & PCI_BASE_ADDRESS_SPACE) {
+ bar_size = ((~(bar_response & PCI_BASE_ADDRESS_IO_MASK))
+ & 0xffff) + 1;
+ bar_res = io;
+
+ DEBUGF("PCI Autoconfig: BAR %d, I/O, size=0x%x, ", bar_nr, bar_size);
+ } else {
+ if ( (bar_response & PCI_BASE_ADDRESS_MEM_TYPE_MASK) ==
+ PCI_BASE_ADDRESS_MEM_TYPE_64)
+ found_mem64 = 1;
+
+ bar_size = ~(bar_response & PCI_BASE_ADDRESS_MEM_MASK) + 1;
+ if (prefetch && (bar_response & PCI_BASE_ADDRESS_MEM_PREFETCH))
+ bar_res = prefetch;
+ else
+ bar_res = mem;
+
+ DEBUGF("PCI Autoconfig: BAR %d, Mem, size=0x%x, ", bar_nr, bar_size);
+ }
+
+ if (pciauto_region_allocate(bar_res, bar_size, &bar_value) == 0) {
+ /* Write it out and update our limit */
+ pci_hose_write_config_dword(hose, dev, bar, bar_value);
+
+ /*
+ * If we are a 64-bit decoder then increment to the
+ * upper 32 bits of the bar and force it to locate
+ * in the lower 4GB of memory.
+ */
+ if (found_mem64) {
+ bar += 4;
+ pci_hose_write_config_dword(hose, dev, bar, 0x00000000);
+ }
+
+ cmdstat |= (bar_response & PCI_BASE_ADDRESS_SPACE) ?
+ PCI_COMMAND_IO : PCI_COMMAND_MEMORY;
+ }
+
+ DEBUGF("\n");
+
+ bar_nr++;
+ }
+
+ pci_hose_write_config_dword(hose, dev, PCI_COMMAND, cmdstat);
+ pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE,
+ CFG_PCI_CACHE_LINE_SIZE);
+ pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80);
+}
+
+void pciauto_prescan_setup_bridge(struct pci_controller *hose,
+ pci_dev_t dev, int sub_bus)
+{
+ struct pci_region *pci_mem = hose->pci_mem;
+ struct pci_region *pci_prefetch = hose->pci_prefetch;
+ struct pci_region *pci_io = hose->pci_io;
+ unsigned int cmdstat;
+
+ pci_hose_read_config_dword(hose, dev, PCI_COMMAND, &cmdstat);
+
+ /* Configure bus number registers */
+ pci_hose_write_config_byte(hose, dev, PCI_PRIMARY_BUS,
+ PCI_BUS(dev) - hose->first_busno);
+ pci_hose_write_config_byte(hose, dev, PCI_SECONDARY_BUS,
+ sub_bus - hose->first_busno);
+ pci_hose_write_config_byte(hose, dev, PCI_SUBORDINATE_BUS, 0xff);
+
+ if (pci_mem) {
+ /* Round memory allocator to 1MB boundary */
+ pciauto_region_align(pci_mem, 0x100000);
+
+ /* Set up memory and I/O filter limits, assume 32-bit I/O space */
+ pci_hose_write_config_word(hose, dev, PCI_MEMORY_BASE,
+ (pci_mem->bus_lower & 0xfff00000) >> 16);
+
+ cmdstat |= PCI_COMMAND_MEMORY;
+ }
+
+ if (pci_prefetch) {
+ /* Round memory allocator to 1MB boundary */
+ pciauto_region_align(pci_prefetch, 0x100000);
+
+ /* Set up memory and I/O filter limits, assume 32-bit I/O space */
+ pci_hose_write_config_word(hose, dev, PCI_PREF_MEMORY_BASE,
+ (pci_prefetch->bus_lower & 0xfff00000) >> 16);
+
+ cmdstat |= PCI_COMMAND_MEMORY;
+ } else {
+ /* We don't support prefetchable memory for now, so disable */
+ pci_hose_write_config_word(hose, dev, PCI_PREF_MEMORY_BASE, 0x1000);
+ pci_hose_write_config_word(hose, dev, PCI_PREF_MEMORY_LIMIT, 0x0);
+ }
+
+ if (pci_io) {
+ /* Round I/O allocator to 4KB boundary */
+ pciauto_region_align(pci_io, 0x1000);
+
+ pci_hose_write_config_byte(hose, dev, PCI_IO_BASE,
+ (pci_io->bus_lower & 0x0000f000) >> 8);
+ pci_hose_write_config_word(hose, dev, PCI_IO_BASE_UPPER16,
+ (pci_io->bus_lower & 0xffff0000) >> 16);
+
+ cmdstat |= PCI_COMMAND_IO;
+ }
+
+ /* Enable memory and I/O accesses, enable bus master */
+ pci_hose_write_config_dword(hose, dev, PCI_COMMAND, cmdstat | PCI_COMMAND_MASTER);
+}
+
+void pciauto_postscan_setup_bridge(struct pci_controller *hose,
+ pci_dev_t dev, int sub_bus)
+{
+ struct pci_region *pci_mem = hose->pci_mem;
+ struct pci_region *pci_prefetch = hose->pci_prefetch;
+ struct pci_region *pci_io = hose->pci_io;
+
+ /* Configure bus number registers */
+ pci_hose_write_config_byte(hose, dev, PCI_SUBORDINATE_BUS,
+ sub_bus - hose->first_busno);
+
+ if (pci_mem) {
+ /* Round memory allocator to 1MB boundary */
+ pciauto_region_align(pci_mem, 0x100000);
+
+ pci_hose_write_config_word(hose, dev, PCI_MEMORY_LIMIT,
+ (pci_mem->bus_lower-1) >> 16);
+ }
+
+ if (pci_prefetch) {
+ /* Round memory allocator to 1MB boundary */
+ pciauto_region_align(pci_prefetch, 0x100000);
+
+ pci_hose_write_config_word(hose, dev, PCI_PREF_MEMORY_LIMIT,
+ (pci_prefetch->bus_lower-1) >> 16);
+ }
+
+ if (pci_io) {
+ /* Round I/O allocator to 4KB boundary */
+ pciauto_region_align(pci_io, 0x1000);
+
+ pci_hose_write_config_byte(hose, dev, PCI_IO_LIMIT,
+ ((pci_io->bus_lower-1) & 0x0000f000) >> 8);
+ pci_hose_write_config_word(hose, dev, PCI_IO_LIMIT_UPPER16,
+ ((pci_io->bus_lower-1) & 0xffff0000) >> 16);
+ }
+}
+
+/*
+ *
+ */
+
+void pciauto_config_init(struct pci_controller *hose)
+{
+ int i;
+
+ hose->pci_io = hose->pci_mem = NULL;
+
+ for (i=0; i<hose->region_count; i++) {
+ switch(hose->regions[i].flags) {
+ case PCI_REGION_IO:
+ if (!hose->pci_io ||
+ hose->pci_io->size < hose->regions[i].size)
+ hose->pci_io = hose->regions + i;
+ break;
+ case PCI_REGION_MEM:
+ if (!hose->pci_mem ||
+ hose->pci_mem->size < hose->regions[i].size)
+ hose->pci_mem = hose->regions + i;
+ break;
+ case (PCI_REGION_MEM | PCI_REGION_PREFETCH):
+ if (!hose->pci_prefetch ||
+ hose->pci_prefetch->size < hose->regions[i].size)
+ hose->pci_prefetch = hose->regions + i;
+ break;
+ }
+ }
+
+
+ if (hose->pci_mem) {
+ pciauto_region_init(hose->pci_mem);
+
+ DEBUGF("PCI Autoconfig: Bus Memory region: [%lx-%lx],\n"
+ "\t\tPhysical Memory [%x-%x]\n",
+ hose->pci_mem->bus_start,
+ hose->pci_mem->bus_start + hose->pci_mem->size - 1,
+ hose->pci_mem->phys_start,
+ hose->pci_mem->phys_start + hose->pci_mem->size - 1);
+ }
+
+ if (hose->pci_prefetch) {
+ pciauto_region_init(hose->pci_prefetch);
+
+ DEBUGF("PCI Autoconfig: Bus Prefetchable Mem: [%lx-%lx],\n"
+ "\t\tPhysical Memory [%x-%x]\n",
+ hose->pci_prefetch->bus_start,
+ hose->pci_prefetch->bus_start + hose->pci_prefetch->size - 1,
+ hose->pci_prefetch->phys_start,
+ hose->pci_prefetch->phys_start +
+ hose->pci_prefetch->size - 1);
+ }
+
+ if (hose->pci_io) {
+ pciauto_region_init(hose->pci_io);
+
+ DEBUGF("PCI Autoconfig: Bus I/O region: [%lx-%lx],\n"
+ "\t\tPhysical Memory: [%x-%x]\n",
+ hose->pci_io->bus_start,
+ hose->pci_io->bus_start + hose->pci_io->size - 1,
+ hose->pci_io->phys_start,
+ hose->pci_io->phys_start + hose->pci_io->size - 1);
+
+ }
+}
+
+/* HJF: Changed this to return int. I think this is required
+ * to get the correct result when scanning bridges
+ */
+int pciauto_config_device(struct pci_controller *hose, pci_dev_t dev)
+{
+ unsigned int sub_bus = PCI_BUS(dev);
+ unsigned short class;
+ unsigned char prg_iface;
+ int n;
+
+ pci_hose_read_config_word(hose, dev, PCI_CLASS_DEVICE, &class);
+
+ switch(class) {
+ case PCI_CLASS_PROCESSOR_POWERPC: /* an agent or end-point */
+ DEBUGF("PCI AutoConfig: Found PowerPC device\n");
+ pciauto_setup_device(hose, dev, 6, hose->pci_mem,
+ hose->pci_prefetch, hose->pci_io);
+ break;
+
+ case PCI_CLASS_BRIDGE_PCI:
+ hose->current_busno++;
+ pciauto_setup_device(hose, dev, 2, hose->pci_mem, hose->pci_prefetch, hose->pci_io);
+
+ DEBUGF("PCI Autoconfig: Found P2P bridge, device %d\n", PCI_DEV(dev));
+
+ /* Passing in current_busno allows for sibling P2P bridges */
+ pciauto_prescan_setup_bridge(hose, dev, hose->current_busno);
+ /*
+ * need to figure out if this is a subordinate bridge on the bus
+ * to be able to properly set the pri/sec/sub bridge registers.
+ */
+ n = pci_hose_scan_bus(hose, hose->current_busno);
+
+ /* figure out the deepest we've gone for this leg */
+ sub_bus = max(n, sub_bus);
+ pciauto_postscan_setup_bridge(hose, dev, sub_bus);
+
+ sub_bus = hose->current_busno;
+ break;
+
+ case PCI_CLASS_STORAGE_IDE:
+ pci_hose_read_config_byte(hose, dev, PCI_CLASS_PROG, &prg_iface);
+ if (!(prg_iface & PCIAUTO_IDE_MODE_MASK)) {
+ DEBUGF("PCI Autoconfig: Skipping legacy mode IDE controller\n");
+ return sub_bus;
+ }
+
+ pciauto_setup_device(hose, dev, 6, hose->pci_mem, hose->pci_prefetch, hose->pci_io);
+ break;
+
+ case PCI_CLASS_BRIDGE_CARDBUS:
+ /* just do a minimal setup of the bridge, let the OS take care of the rest */
+ pciauto_setup_device(hose, dev, 0, hose->pci_mem, hose->pci_prefetch, hose->pci_io);
+
+ DEBUGF("PCI Autoconfig: Found P2CardBus bridge, device %d\n", PCI_DEV(dev));
+
+ hose->current_busno++;
+ break;
+
+#ifdef CONFIG_MPC5200
+ case PCI_CLASS_BRIDGE_OTHER:
+ DEBUGF("PCI Autoconfig: Skipping bridge device %d\n",
+ PCI_DEV(dev));
+ break;
+#endif
+#ifdef CONFIG_MPC834X
+ case PCI_CLASS_BRIDGE_OTHER:
+ /*
+ * The host/PCI bridge 1 seems broken in 8349 - it presents
+ * itself as 'PCI_CLASS_BRIDGE_OTHER' and appears as an _agent_
+ * device claiming resources io/mem/irq.. we only allow for
+ * the PIMMR window to be allocated (BAR0 - 1MB size)
+ */
+ DEBUGF("PCI Autoconfig: Broken bridge found, only minimal config\n");
+ pciauto_setup_device(hose, dev, 0, hose->pci_mem, hose->pci_prefetch, hose->pci_io);
+ break;
+#endif
+ default:
+ pciauto_setup_device(hose, dev, 6, hose->pci_mem, hose->pci_prefetch, hose->pci_io);
+ break;
+ }
+
+ return sub_bus;
+}
+
+#endif /* CONFIG_PCI */
--- /dev/null
+/*
+ * Support for indirect PCI bridges.
+ *
+ * Copyright (C) 1998 Gabriel Paubert.
+ *
+ * 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.
+ */
+
+#include <common.h>
+
+#ifdef CONFIG_PCI
+#if (!defined(__I386__) && !defined(CONFIG_IXDP425))
+
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <pci.h>
+
+#define cfg_read(val, addr, type, op) *val = op((type)(addr))
+#define cfg_write(val, addr, type, op) op((type *)(addr), (val))
+
+#ifdef CONFIG_IXP425
+extern unsigned char in_8 (volatile unsigned *addr);
+extern unsigned short in_le16 (volatile unsigned *addr);
+extern unsigned in_le32 (volatile unsigned *addr);
+extern void out_8 (volatile unsigned *addr, char val);
+extern void out_le16 (volatile unsigned *addr, unsigned short val);
+extern void out_le32 (volatile unsigned *addr, unsigned int val);
+#endif /* CONFIG_IXP425 */
+
+#if defined(CONFIG_MPC8260)
+#define INDIRECT_PCI_OP(rw, size, type, op, mask) \
+static int \
+indirect_##rw##_config_##size(struct pci_controller *hose, \
+ pci_dev_t dev, int offset, type val) \
+{ \
+ u32 b, d,f; \
+ b = PCI_BUS(dev); d = PCI_DEV(dev); f = PCI_FUNC(dev); \
+ b = b - hose->first_busno; \
+ dev = PCI_BDF(b, d, f); \
+ out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000000); \
+ sync(); \
+ cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \
+ return 0; \
+}
+#elif defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
+#define INDIRECT_PCI_OP(rw, size, type, op, mask) \
+static int \
+indirect_##rw##_config_##size(struct pci_controller *hose, \
+ pci_dev_t dev, int offset, type val) \
+{ \
+ u32 b, d,f; \
+ b = PCI_BUS(dev); d = PCI_DEV(dev); f = PCI_FUNC(dev); \
+ b = b - hose->first_busno; \
+ dev = PCI_BDF(b, d, f); \
+ *(hose->cfg_addr) = dev | (offset & 0xfc) | ((offset & 0xf00) << 16) | 0x80000000; \
+ sync(); \
+ cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \
+ return 0; \
+}
+#elif defined(CONFIG_440GX) || defined(CONFIG_440EP) || defined(CONFIG_440GR) || defined(CONFIG_440SPE)
+#define INDIRECT_PCI_OP(rw, size, type, op, mask) \
+static int \
+indirect_##rw##_config_##size(struct pci_controller *hose, \
+ pci_dev_t dev, int offset, type val) \
+{ \
+ u32 b, d,f; \
+ b = PCI_BUS(dev); d = PCI_DEV(dev); f = PCI_FUNC(dev); \
+ b = b - hose->first_busno; \
+ dev = PCI_BDF(b, d, f); \
+ if (PCI_BUS(dev) > 0) \
+ out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000001); \
+ else \
+ out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000000); \
+ cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \
+ return 0; \
+}
+#else
+#define INDIRECT_PCI_OP(rw, size, type, op, mask) \
+static int \
+indirect_##rw##_config_##size(struct pci_controller *hose, \
+ pci_dev_t dev, int offset, type val) \
+{ \
+ u32 b, d,f; \
+ b = PCI_BUS(dev); d = PCI_DEV(dev); f = PCI_FUNC(dev); \
+ b = b - hose->first_busno; \
+ dev = PCI_BDF(b, d, f); \
+ out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000000); \
+ cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \
+ return 0; \
+}
+#endif
+
+#define INDIRECT_PCI_OP_ERRATA6(rw, size, type, op, mask) \
+static int \
+indirect_##rw##_config_##size(struct pci_controller *hose, \
+ pci_dev_t dev, int offset, type val) \
+{ \
+ unsigned int msr = mfmsr(); \
+ mtmsr(msr & ~(MSR_EE | MSR_CE)); \
+ out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000000); \
+ cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \
+ out_le32(hose->cfg_addr, 0x00000000); \
+ mtmsr(msr); \
+ return 0; \
+}
+
+INDIRECT_PCI_OP(read, byte, u8 *, in_8, 3)
+INDIRECT_PCI_OP(read, word, u16 *, in_le16, 2)
+INDIRECT_PCI_OP(read, dword, u32 *, in_le32, 0)
+#ifdef CONFIG_405GP
+INDIRECT_PCI_OP_ERRATA6(write, byte, u8, out_8, 3)
+INDIRECT_PCI_OP_ERRATA6(write, word, u16, out_le16, 2)
+INDIRECT_PCI_OP_ERRATA6(write, dword, u32, out_le32, 0)
+#else
+INDIRECT_PCI_OP(write, byte, u8, out_8, 3)
+INDIRECT_PCI_OP(write, word, u16, out_le16, 2)
+INDIRECT_PCI_OP(write, dword, u32, out_le32, 0)
+#endif
+
+void pci_setup_indirect(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data)
+{
+ pci_set_ops(hose,
+ indirect_read_config_byte,
+ indirect_read_config_word,
+ indirect_read_config_dword,
+ indirect_write_config_byte,
+ indirect_write_config_word,
+ indirect_write_config_dword);
+
+ hose->cfg_addr = (unsigned int *) cfg_addr;
+ hose->cfg_data = (unsigned char *) cfg_data;
+}
+
+#endif /* !__I386__ && !CONFIG_IXDP425 */
+#endif /* CONFIG_PCI */
--- /dev/null
+/*
+ * (C) Copyright 2004 Tundra Semiconductor Corp.
+ * Alex Bounine <alexandreb@tundra.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 initialisation for the Tsi108 EMU board.
+ */
+
+#include <config.h>
+
+#ifdef CONFIG_TSI108_PCI
+
+#include <common.h>
+#include <pci.h>
+#include <asm/io.h>
+#include <tsi108.h>
+#ifdef CONFIG_OF_FLAT_TREE
+#include <ft_build.h>
+#endif
+
+struct pci_controller local_hose;
+
+void tsi108_clear_pci_error (void)
+{
+ u32 err_stat, err_addr, pci_stat;
+
+ /*
+ * Quietly clear errors signalled as result of PCI/X configuration read
+ * requests.
+ */
+ /* Read PB Error Log Registers */
+ err_stat = *(volatile u32 *)(CFG_TSI108_CSR_BASE +
+ TSI108_PB_REG_OFFSET + PB_ERRCS);
+ err_addr = *(volatile u32 *)(CFG_TSI108_CSR_BASE +
+ TSI108_PB_REG_OFFSET + PB_AERR);
+ if (err_stat & PB_ERRCS_ES) {
+ /* Clear PCI/X bus errors if applicable */
+ if ((err_addr & 0xFF000000) == CFG_PCI_CFG_BASE) {
+ /* Clear error flag */
+ *(u32 *) (CFG_TSI108_CSR_BASE +
+ TSI108_PB_REG_OFFSET + PB_ERRCS) =
+ PB_ERRCS_ES;
+
+ /* Clear read error reported in PB_ISR */
+ *(u32 *) (CFG_TSI108_CSR_BASE +
+ TSI108_PB_REG_OFFSET + PB_ISR) =
+ PB_ISR_PBS_RD_ERR;
+
+ /* Clear errors reported by PCI CSR (Normally Master Abort) */
+ pci_stat = *(volatile u32 *)(CFG_TSI108_CSR_BASE +
+ TSI108_PCI_REG_OFFSET +
+ PCI_CSR);
+ *(volatile u32 *)(CFG_TSI108_CSR_BASE +
+ TSI108_PCI_REG_OFFSET + PCI_CSR) =
+ pci_stat;
+
+ *(volatile u32 *)(CFG_TSI108_CSR_BASE +
+ TSI108_PCI_REG_OFFSET +
+ PCI_IRP_STAT) = PCI_IRP_STAT_P_CSR;
+ }
+ }
+
+ return;
+}
+
+unsigned int __get_pci_config_dword (u32 addr)
+{
+ unsigned int retval;
+
+ __asm__ __volatile__ (" lwbrx %0,0,%1\n"
+ "1: eieio\n"
+ "2:\n"
+ ".section .fixup,\"ax\"\n"
+ "3: li %0,-1\n"
+ " b 2b\n"
+ ".section __ex_table,\"a\"\n"
+ " .align 2\n"
+ " .long 1b,3b\n"
+ ".text":"=r"(retval):"r"(addr));
+
+ return (retval);
+}
+
+static int tsi108_read_config_dword (struct pci_controller *hose,
+ pci_dev_t dev, int offset, u32 * value)
+{
+ dev &= (CFG_PCI_CFG_SIZE - 1);
+ dev |= (CFG_PCI_CFG_BASE | (offset & 0xfc));
+ *value = __get_pci_config_dword(dev);
+ if (0xFFFFFFFF == *value)
+ tsi108_clear_pci_error ();
+ return 0;
+}
+
+static int tsi108_write_config_dword (struct pci_controller *hose,
+ pci_dev_t dev, int offset, u32 value)
+{
+ dev &= (CFG_PCI_CFG_SIZE - 1);
+ dev |= (CFG_PCI_CFG_BASE | (offset & 0xfc));
+
+ out_le32 ((volatile unsigned *)dev, value);
+
+ return 0;
+}
+
+void pci_init_board (void)
+{
+ struct pci_controller *hose = (struct pci_controller *)&local_hose;
+
+ hose->first_busno = 0;
+ hose->last_busno = 0xff;
+
+ 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 memory space */
+ pci_set_region (hose->regions + 1,
+ CFG_PCI_MEM_BUS,
+ CFG_PCI_MEM_PHYS, CFG_PCI_MEM_SIZE, PCI_REGION_MEM);
+
+ /* PCI I/O space */
+ pci_set_region (hose->regions + 2,
+ CFG_PCI_IO_BUS,
+ CFG_PCI_IO_PHYS, CFG_PCI_IO_SIZE, PCI_REGION_IO);
+
+ hose->region_count = 3;
+
+ pci_set_ops (hose,
+ pci_hose_read_config_byte_via_dword,
+ pci_hose_read_config_word_via_dword,
+ tsi108_read_config_dword,
+ pci_hose_write_config_byte_via_dword,
+ pci_hose_write_config_word_via_dword,
+ tsi108_write_config_dword);
+
+ pci_register_hose (hose);
+
+ hose->last_busno = pci_hose_scan (hose);
+
+ debug ("Done PCI initialization\n");
+ return;
+}
+
+#ifdef CONFIG_OF_FLAT_TREE
+void
+ft_pci_setup (void *blob, bd_t *bd)
+{
+ u32 *p;
+ int len;
+
+ p = (u32 *)ft_get_prop (blob, "/" OF_TSI "/pci@1000/bus-range", &len);
+ if (p != NULL) {
+ p[0] = local_hose.first_busno;
+ p[1] = local_hose.last_busno;
+ }
+
+}
+#endif
+
+#endif /* CONFIG_TSI108_PCI */
--- /dev/null
+/*
+ * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Andreas Heppel <aheppel@sysgo.de>
+ *
+ * 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
+ */
+
+/*
+ * Initialisation of the PCI-to-ISA bridge and disabling the BIOS
+ * write protection (for flash) in function 0 of the chip.
+ * Enabling function 1 (IDE controller of the chip.
+ */
+
+#include <common.h>
+#include <config.h>
+
+#ifdef CFG_WINBOND_83C553
+
+#include <asm/io.h>
+#include <pci.h>
+
+#include <w83c553f.h>
+
+#define out8(addr,val) do { \
+ out_8((u8*) (addr),(val)); udelay(1); \
+ } while (0)
+#define out16(addr,val) do { \
+ out_be16((u16*) (addr),(val)); udelay(1); \
+ } while (0)
+
+extern uint ide_bus_offset[CFG_IDE_MAXBUS];
+
+void initialise_pic(void);
+void initialise_dma(void);
+
+void initialise_w83c553f(void)
+{
+ pci_dev_t devbusfn;
+ unsigned char reg8;
+ unsigned short reg16;
+ unsigned int reg32;
+
+ devbusfn = pci_find_device(W83C553F_VID, W83C553F_DID, 0);
+ if (devbusfn == -1)
+ {
+ printf("Error: Cannot find W83C553F controller on any PCI bus.");
+ return;
+ }
+
+ pci_read_config_word(devbusfn, PCI_COMMAND, ®16);
+ reg16 |= PCI_COMMAND_MASTER | PCI_COMMAND_IO | PCI_COMMAND_MEMORY;
+ pci_write_config_word(devbusfn, PCI_COMMAND, reg16);
+
+ pci_read_config_byte(devbusfn, WINBOND_IPADCR, ®8);
+ /* 16 MB ISA memory space */
+ reg8 |= (IPADCR_IPATOM4 | IPADCR_IPATOM5 | IPADCR_IPATOM6 | IPADCR_IPATOM7);
+ reg8 &= ~IPADCR_MBE512;
+ pci_write_config_byte(devbusfn, WINBOND_IPADCR, reg8);
+
+ pci_read_config_byte(devbusfn, WINBOND_CSCR, ®8);
+ /* switch off BIOS write protection */
+ reg8 |= CSCR_UBIOSCSE;
+ reg8 &= ~CSCR_BIOSWP;
+ pci_write_config_byte(devbusfn, WINBOND_CSCR, reg8);
+
+ /*
+ * Interrupt routing:
+ * - IDE -> IRQ 9/0
+ * - INTA -> IRQ 10
+ * - INTB -> IRQ 11
+ * - INTC -> IRQ 14
+ * - INTD -> IRQ 15
+ */
+ pci_write_config_byte(devbusfn, WINBOND_IDEIRCR, 0x90);
+ pci_write_config_word(devbusfn, WINBOND_PCIIRCR, 0xABEF);
+
+ /*
+ * Read IDE bus offsets from function 1 device.
+ * We must unmask the LSB indicating that ist is an IO address.
+ */
+ devbusfn |= PCI_BDF(0,0,1);
+
+ /*
+ * Switch off legacy IRQ for IDE and IDE port 1.
+ */
+ pci_write_config_byte(devbusfn, 0x09, 0x8F);
+
+ pci_read_config_dword(devbusfn, WINDOND_IDECSR, ®32);
+ reg32 &= ~(IDECSR_LEGIRQ | IDECSR_P1EN | IDECSR_P1F16);
+ pci_write_config_dword(devbusfn, WINDOND_IDECSR, reg32);
+
+ pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_0, &ide_bus_offset[0]);
+ ide_bus_offset[0] &= ~1;
+#if CFG_IDE_MAXBUS > 1
+ pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_2, &ide_bus_offset[1]);
+ ide_bus_offset[1] &= ~1;
+#endif
+
+ /*
+ * Enable function 1, IDE -> busmastering and IO space access
+ */
+ pci_read_config_word(devbusfn, PCI_COMMAND, ®16);
+ reg16 |= PCI_COMMAND_MASTER | PCI_COMMAND_IO;
+ pci_write_config_word(devbusfn, PCI_COMMAND, reg16);
+
+ /*
+ * Initialise ISA interrupt controller
+ */
+ initialise_pic();
+
+ /*
+ * Initialise DMA controller
+ */
+ initialise_dma();
+}
+
+void initialise_pic(void)
+{
+ out8(W83C553F_PIC1_ICW1, 0x11);
+ out8(W83C553F_PIC1_ICW2, 0x08);
+ out8(W83C553F_PIC1_ICW3, 0x04);
+ out8(W83C553F_PIC1_ICW4, 0x01);
+ out8(W83C553F_PIC1_OCW1, 0xfb);
+ out8(W83C553F_PIC1_ELC, 0x20);
+
+ out8(W83C553F_PIC2_ICW1, 0x11);
+ out8(W83C553F_PIC2_ICW2, 0x08);
+ out8(W83C553F_PIC2_ICW3, 0x02);
+ out8(W83C553F_PIC2_ICW4, 0x01);
+ out8(W83C553F_PIC2_OCW1, 0xff);
+ out8(W83C553F_PIC2_ELC, 0xce);
+
+ out8(W83C553F_TMR1_CMOD, 0x74);
+
+ out8(W83C553F_PIC2_OCW1, 0x20);
+ out8(W83C553F_PIC1_OCW1, 0x20);
+
+ out8(W83C553F_PIC2_OCW1, 0x2b);
+ out8(W83C553F_PIC1_OCW1, 0x2b);
+}
+
+void initialise_dma(void)
+{
+ unsigned int channel;
+ unsigned int rvalue1, rvalue2;
+
+ /* perform a H/W reset of the devices */
+
+ out8(W83C553F_DMA1 + W83C553F_DMA1_MC, 0x00);
+ out16(W83C553F_DMA2 + W83C553F_DMA2_MC, 0x0000);
+
+ /* initialise all channels to a sane state */
+
+ for (channel = 0; channel < 4; channel++) {
+ /*
+ * dependent upon the channel, setup the specifics:
+ *
+ * demand
+ * address-increment
+ * autoinitialize-disable
+ * verify-transfer
+ */
+
+ switch (channel) {
+ case 0:
+ rvalue1 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH0SEL|W83C553F_MODE_TT_VERIFY);
+ rvalue2 = (W83C553F_MODE_TM_CASCADE|W83C553F_MODE_CH0SEL);
+ break;
+ case 1:
+ rvalue1 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH1SEL|W83C553F_MODE_TT_VERIFY);
+ rvalue2 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH1SEL|W83C553F_MODE_TT_VERIFY);
+ break;
+ case 2:
+ rvalue1 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH2SEL|W83C553F_MODE_TT_VERIFY);
+ rvalue2 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH2SEL|W83C553F_MODE_TT_VERIFY);
+ break;
+ case 3:
+ rvalue1 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH3SEL|W83C553F_MODE_TT_VERIFY);
+ rvalue2 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH3SEL|W83C553F_MODE_TT_VERIFY);
+ break;
+ default:
+ rvalue1 = 0x00;
+ rvalue2 = 0x00;
+ break;
+ }
+
+ /* write to write mode registers */
+
+ out8(W83C553F_DMA1 + W83C553F_DMA1_WM, rvalue1 & 0xFF);
+ out16(W83C553F_DMA2 + W83C553F_DMA2_WM, rvalue2 & 0x00FF);
+ }
+
+ /* enable all channels */
+
+ out8(W83C553F_DMA1 + W83C553F_DMA1_CM, 0x00);
+ out16(W83C553F_DMA2 + W83C553F_DMA2_CM, 0x0000);
+ /*
+ * initialize the global DMA configuration
+ *
+ * DACK# active low
+ * DREQ active high
+ * fixed priority
+ * channel group enable
+ */
+
+ out8(W83C553F_DMA1 + W83C553F_DMA1_CS, 0x00);
+ out16(W83C553F_DMA2 + W83C553F_DMA2_CS, 0x0000);
+}
+
+#endif /* CFG_WINBOND_83C553 */
+++ /dev/null
-/*
- * arch/ppc/kernel/pci_auto.c
- *
- * PCI autoconfiguration library
- *
- * Author: Matt Porter <mporter@mvista.com>
- *
- * Copyright 2000 MontaVista Software 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.
- */
-
-#include <common.h>
-
-#ifdef CONFIG_PCI
-
-#include <pci.h>
-
-#undef DEBUG
-#ifdef DEBUG
-#define DEBUGF(x...) printf(x)
-#else
-#define DEBUGF(x...)
-#endif /* DEBUG */
-
-#define PCIAUTO_IDE_MODE_MASK 0x05
-
-/* the user can define CFG_PCI_CACHE_LINE_SIZE to avoid problems */
-#ifndef CFG_PCI_CACHE_LINE_SIZE
-#define CFG_PCI_CACHE_LINE_SIZE 8
-#endif
-
-/*
- *
- */
-
-void pciauto_region_init(struct pci_region* res)
-{
- /*
- * Avoid allocating PCI resources from address 0 -- this is illegal
- * according to PCI 2.1 and moreover, this is known to cause Linux IDE
- * drivers to fail. Use a reasonable starting value of 0x1000 instead.
- */
- res->bus_lower = res->bus_start ? res->bus_start : 0x1000;
-}
-
-void pciauto_region_align(struct pci_region *res, unsigned long size)
-{
- res->bus_lower = ((res->bus_lower - 1) | (size - 1)) + 1;
-}
-
-int pciauto_region_allocate(struct pci_region* res, unsigned int size, unsigned int *bar)
-{
- unsigned long addr;
-
- if (!res) {
- DEBUGF("No resource");
- goto error;
- }
-
- addr = ((res->bus_lower - 1) | (size - 1)) + 1;
-
- if (addr - res->bus_start + size > res->size) {
- DEBUGF("No room in resource");
- goto error;
- }
-
- res->bus_lower = addr + size;
-
- DEBUGF("address=0x%lx bus_lower=%x", addr, res->bus_lower);
-
- *bar = addr;
- return 0;
-
- error:
- *bar = 0xffffffff;
- return -1;
-}
-
-/*
- *
- */
-
-void pciauto_setup_device(struct pci_controller *hose,
- pci_dev_t dev, int bars_num,
- struct pci_region *mem,
- struct pci_region *prefetch,
- struct pci_region *io)
-{
- unsigned int bar_value, bar_response, bar_size;
- unsigned int cmdstat = 0;
- struct pci_region *bar_res;
- int bar, bar_nr = 0;
- int found_mem64 = 0;
-
- pci_hose_read_config_dword(hose, dev, PCI_COMMAND, &cmdstat);
- cmdstat = (cmdstat & ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) | PCI_COMMAND_MASTER;
-
- for (bar = PCI_BASE_ADDRESS_0; bar < PCI_BASE_ADDRESS_0 + (bars_num*4); bar += 4) {
- /* Tickle the BAR and get the response */
- pci_hose_write_config_dword(hose, dev, bar, 0xffffffff);
- pci_hose_read_config_dword(hose, dev, bar, &bar_response);
-
- /* If BAR is not implemented go to the next BAR */
- if (!bar_response)
- continue;
-
- found_mem64 = 0;
-
- /* Check the BAR type and set our address mask */
- if (bar_response & PCI_BASE_ADDRESS_SPACE) {
- bar_size = ((~(bar_response & PCI_BASE_ADDRESS_IO_MASK))
- & 0xffff) + 1;
- bar_res = io;
-
- DEBUGF("PCI Autoconfig: BAR %d, I/O, size=0x%x, ", bar_nr, bar_size);
- } else {
- if ( (bar_response & PCI_BASE_ADDRESS_MEM_TYPE_MASK) ==
- PCI_BASE_ADDRESS_MEM_TYPE_64)
- found_mem64 = 1;
-
- bar_size = ~(bar_response & PCI_BASE_ADDRESS_MEM_MASK) + 1;
- if (prefetch && (bar_response & PCI_BASE_ADDRESS_MEM_PREFETCH))
- bar_res = prefetch;
- else
- bar_res = mem;
-
- DEBUGF("PCI Autoconfig: BAR %d, Mem, size=0x%x, ", bar_nr, bar_size);
- }
-
- if (pciauto_region_allocate(bar_res, bar_size, &bar_value) == 0) {
- /* Write it out and update our limit */
- pci_hose_write_config_dword(hose, dev, bar, bar_value);
-
- /*
- * If we are a 64-bit decoder then increment to the
- * upper 32 bits of the bar and force it to locate
- * in the lower 4GB of memory.
- */
- if (found_mem64) {
- bar += 4;
- pci_hose_write_config_dword(hose, dev, bar, 0x00000000);
- }
-
- cmdstat |= (bar_response & PCI_BASE_ADDRESS_SPACE) ?
- PCI_COMMAND_IO : PCI_COMMAND_MEMORY;
- }
-
- DEBUGF("\n");
-
- bar_nr++;
- }
-
- pci_hose_write_config_dword(hose, dev, PCI_COMMAND, cmdstat);
- pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE,
- CFG_PCI_CACHE_LINE_SIZE);
- pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80);
-}
-
-void pciauto_prescan_setup_bridge(struct pci_controller *hose,
- pci_dev_t dev, int sub_bus)
-{
- struct pci_region *pci_mem = hose->pci_mem;
- struct pci_region *pci_prefetch = hose->pci_prefetch;
- struct pci_region *pci_io = hose->pci_io;
- unsigned int cmdstat;
-
- pci_hose_read_config_dword(hose, dev, PCI_COMMAND, &cmdstat);
-
- /* Configure bus number registers */
- pci_hose_write_config_byte(hose, dev, PCI_PRIMARY_BUS,
- PCI_BUS(dev) - hose->first_busno);
- pci_hose_write_config_byte(hose, dev, PCI_SECONDARY_BUS,
- sub_bus - hose->first_busno);
- pci_hose_write_config_byte(hose, dev, PCI_SUBORDINATE_BUS, 0xff);
-
- if (pci_mem) {
- /* Round memory allocator to 1MB boundary */
- pciauto_region_align(pci_mem, 0x100000);
-
- /* Set up memory and I/O filter limits, assume 32-bit I/O space */
- pci_hose_write_config_word(hose, dev, PCI_MEMORY_BASE,
- (pci_mem->bus_lower & 0xfff00000) >> 16);
-
- cmdstat |= PCI_COMMAND_MEMORY;
- }
-
- if (pci_prefetch) {
- /* Round memory allocator to 1MB boundary */
- pciauto_region_align(pci_prefetch, 0x100000);
-
- /* Set up memory and I/O filter limits, assume 32-bit I/O space */
- pci_hose_write_config_word(hose, dev, PCI_PREF_MEMORY_BASE,
- (pci_prefetch->bus_lower & 0xfff00000) >> 16);
-
- cmdstat |= PCI_COMMAND_MEMORY;
- } else {
- /* We don't support prefetchable memory for now, so disable */
- pci_hose_write_config_word(hose, dev, PCI_PREF_MEMORY_BASE, 0x1000);
- pci_hose_write_config_word(hose, dev, PCI_PREF_MEMORY_LIMIT, 0x0);
- }
-
- if (pci_io) {
- /* Round I/O allocator to 4KB boundary */
- pciauto_region_align(pci_io, 0x1000);
-
- pci_hose_write_config_byte(hose, dev, PCI_IO_BASE,
- (pci_io->bus_lower & 0x0000f000) >> 8);
- pci_hose_write_config_word(hose, dev, PCI_IO_BASE_UPPER16,
- (pci_io->bus_lower & 0xffff0000) >> 16);
-
- cmdstat |= PCI_COMMAND_IO;
- }
-
- /* Enable memory and I/O accesses, enable bus master */
- pci_hose_write_config_dword(hose, dev, PCI_COMMAND, cmdstat | PCI_COMMAND_MASTER);
-}
-
-void pciauto_postscan_setup_bridge(struct pci_controller *hose,
- pci_dev_t dev, int sub_bus)
-{
- struct pci_region *pci_mem = hose->pci_mem;
- struct pci_region *pci_prefetch = hose->pci_prefetch;
- struct pci_region *pci_io = hose->pci_io;
-
- /* Configure bus number registers */
- pci_hose_write_config_byte(hose, dev, PCI_SUBORDINATE_BUS,
- sub_bus - hose->first_busno);
-
- if (pci_mem) {
- /* Round memory allocator to 1MB boundary */
- pciauto_region_align(pci_mem, 0x100000);
-
- pci_hose_write_config_word(hose, dev, PCI_MEMORY_LIMIT,
- (pci_mem->bus_lower-1) >> 16);
- }
-
- if (pci_prefetch) {
- /* Round memory allocator to 1MB boundary */
- pciauto_region_align(pci_prefetch, 0x100000);
-
- pci_hose_write_config_word(hose, dev, PCI_PREF_MEMORY_LIMIT,
- (pci_prefetch->bus_lower-1) >> 16);
- }
-
- if (pci_io) {
- /* Round I/O allocator to 4KB boundary */
- pciauto_region_align(pci_io, 0x1000);
-
- pci_hose_write_config_byte(hose, dev, PCI_IO_LIMIT,
- ((pci_io->bus_lower-1) & 0x0000f000) >> 8);
- pci_hose_write_config_word(hose, dev, PCI_IO_LIMIT_UPPER16,
- ((pci_io->bus_lower-1) & 0xffff0000) >> 16);
- }
-}
-
-/*
- *
- */
-
-void pciauto_config_init(struct pci_controller *hose)
-{
- int i;
-
- hose->pci_io = hose->pci_mem = NULL;
-
- for (i=0; i<hose->region_count; i++) {
- switch(hose->regions[i].flags) {
- case PCI_REGION_IO:
- if (!hose->pci_io ||
- hose->pci_io->size < hose->regions[i].size)
- hose->pci_io = hose->regions + i;
- break;
- case PCI_REGION_MEM:
- if (!hose->pci_mem ||
- hose->pci_mem->size < hose->regions[i].size)
- hose->pci_mem = hose->regions + i;
- break;
- case (PCI_REGION_MEM | PCI_REGION_PREFETCH):
- if (!hose->pci_prefetch ||
- hose->pci_prefetch->size < hose->regions[i].size)
- hose->pci_prefetch = hose->regions + i;
- break;
- }
- }
-
-
- if (hose->pci_mem) {
- pciauto_region_init(hose->pci_mem);
-
- DEBUGF("PCI Autoconfig: Bus Memory region: [%lx-%lx],\n"
- "\t\tPhysical Memory [%x-%x]\n",
- hose->pci_mem->bus_start,
- hose->pci_mem->bus_start + hose->pci_mem->size - 1,
- hose->pci_mem->phys_start,
- hose->pci_mem->phys_start + hose->pci_mem->size - 1);
- }
-
- if (hose->pci_prefetch) {
- pciauto_region_init(hose->pci_prefetch);
-
- DEBUGF("PCI Autoconfig: Bus Prefetchable Mem: [%lx-%lx],\n"
- "\t\tPhysical Memory [%x-%x]\n",
- hose->pci_prefetch->bus_start,
- hose->pci_prefetch->bus_start + hose->pci_prefetch->size - 1,
- hose->pci_prefetch->phys_start,
- hose->pci_prefetch->phys_start +
- hose->pci_prefetch->size - 1);
- }
-
- if (hose->pci_io) {
- pciauto_region_init(hose->pci_io);
-
- DEBUGF("PCI Autoconfig: Bus I/O region: [%lx-%lx],\n"
- "\t\tPhysical Memory: [%x-%x]\n",
- hose->pci_io->bus_start,
- hose->pci_io->bus_start + hose->pci_io->size - 1,
- hose->pci_io->phys_start,
- hose->pci_io->phys_start + hose->pci_io->size - 1);
-
- }
-}
-
-/* HJF: Changed this to return int. I think this is required
- * to get the correct result when scanning bridges
- */
-int pciauto_config_device(struct pci_controller *hose, pci_dev_t dev)
-{
- unsigned int sub_bus = PCI_BUS(dev);
- unsigned short class;
- unsigned char prg_iface;
- int n;
-
- pci_hose_read_config_word(hose, dev, PCI_CLASS_DEVICE, &class);
-
- switch(class) {
- case PCI_CLASS_PROCESSOR_POWERPC: /* an agent or end-point */
- DEBUGF("PCI AutoConfig: Found PowerPC device\n");
- pciauto_setup_device(hose, dev, 6, hose->pci_mem,
- hose->pci_prefetch, hose->pci_io);
- break;
-
- case PCI_CLASS_BRIDGE_PCI:
- hose->current_busno++;
- pciauto_setup_device(hose, dev, 2, hose->pci_mem, hose->pci_prefetch, hose->pci_io);
-
- DEBUGF("PCI Autoconfig: Found P2P bridge, device %d\n", PCI_DEV(dev));
-
- /* Passing in current_busno allows for sibling P2P bridges */
- pciauto_prescan_setup_bridge(hose, dev, hose->current_busno);
- /*
- * need to figure out if this is a subordinate bridge on the bus
- * to be able to properly set the pri/sec/sub bridge registers.
- */
- n = pci_hose_scan_bus(hose, hose->current_busno);
-
- /* figure out the deepest we've gone for this leg */
- sub_bus = max(n, sub_bus);
- pciauto_postscan_setup_bridge(hose, dev, sub_bus);
-
- sub_bus = hose->current_busno;
- break;
-
- case PCI_CLASS_STORAGE_IDE:
- pci_hose_read_config_byte(hose, dev, PCI_CLASS_PROG, &prg_iface);
- if (!(prg_iface & PCIAUTO_IDE_MODE_MASK)) {
- DEBUGF("PCI Autoconfig: Skipping legacy mode IDE controller\n");
- return sub_bus;
- }
-
- pciauto_setup_device(hose, dev, 6, hose->pci_mem, hose->pci_prefetch, hose->pci_io);
- break;
-
- case PCI_CLASS_BRIDGE_CARDBUS:
- /* just do a minimal setup of the bridge, let the OS take care of the rest */
- pciauto_setup_device(hose, dev, 0, hose->pci_mem, hose->pci_prefetch, hose->pci_io);
-
- DEBUGF("PCI Autoconfig: Found P2CardBus bridge, device %d\n", PCI_DEV(dev));
-
- hose->current_busno++;
- break;
-
-#ifdef CONFIG_MPC5200
- case PCI_CLASS_BRIDGE_OTHER:
- DEBUGF("PCI Autoconfig: Skipping bridge device %d\n",
- PCI_DEV(dev));
- break;
-#endif
-#ifdef CONFIG_MPC834X
- case PCI_CLASS_BRIDGE_OTHER:
- /*
- * The host/PCI bridge 1 seems broken in 8349 - it presents
- * itself as 'PCI_CLASS_BRIDGE_OTHER' and appears as an _agent_
- * device claiming resources io/mem/irq.. we only allow for
- * the PIMMR window to be allocated (BAR0 - 1MB size)
- */
- DEBUGF("PCI Autoconfig: Broken bridge found, only minimal config\n");
- pciauto_setup_device(hose, dev, 0, hose->pci_mem, hose->pci_prefetch, hose->pci_io);
- break;
-#endif
- default:
- pciauto_setup_device(hose, dev, 6, hose->pci_mem, hose->pci_prefetch, hose->pci_io);
- break;
- }
-
- return sub_bus;
-}
-
-#endif /* CONFIG_PCI */
+++ /dev/null
-/*
- * Support for indirect PCI bridges.
- *
- * Copyright (C) 1998 Gabriel Paubert.
- *
- * 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.
- */
-
-#include <common.h>
-
-#ifdef CONFIG_PCI
-#if (!defined(__I386__) && !defined(CONFIG_IXDP425))
-
-#include <asm/processor.h>
-#include <asm/io.h>
-#include <pci.h>
-
-#define cfg_read(val, addr, type, op) *val = op((type)(addr))
-#define cfg_write(val, addr, type, op) op((type *)(addr), (val))
-
-#ifdef CONFIG_IXP425
-extern unsigned char in_8 (volatile unsigned *addr);
-extern unsigned short in_le16 (volatile unsigned *addr);
-extern unsigned in_le32 (volatile unsigned *addr);
-extern void out_8 (volatile unsigned *addr, char val);
-extern void out_le16 (volatile unsigned *addr, unsigned short val);
-extern void out_le32 (volatile unsigned *addr, unsigned int val);
-#endif /* CONFIG_IXP425 */
-
-#if defined(CONFIG_MPC8260)
-#define INDIRECT_PCI_OP(rw, size, type, op, mask) \
-static int \
-indirect_##rw##_config_##size(struct pci_controller *hose, \
- pci_dev_t dev, int offset, type val) \
-{ \
- u32 b, d,f; \
- b = PCI_BUS(dev); d = PCI_DEV(dev); f = PCI_FUNC(dev); \
- b = b - hose->first_busno; \
- dev = PCI_BDF(b, d, f); \
- out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000000); \
- sync(); \
- cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \
- return 0; \
-}
-#elif defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
-#define INDIRECT_PCI_OP(rw, size, type, op, mask) \
-static int \
-indirect_##rw##_config_##size(struct pci_controller *hose, \
- pci_dev_t dev, int offset, type val) \
-{ \
- u32 b, d,f; \
- b = PCI_BUS(dev); d = PCI_DEV(dev); f = PCI_FUNC(dev); \
- b = b - hose->first_busno; \
- dev = PCI_BDF(b, d, f); \
- *(hose->cfg_addr) = dev | (offset & 0xfc) | ((offset & 0xf00) << 16) | 0x80000000; \
- sync(); \
- cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \
- return 0; \
-}
-#elif defined(CONFIG_440GX) || defined(CONFIG_440EP) || defined(CONFIG_440GR) || defined(CONFIG_440SPE)
-#define INDIRECT_PCI_OP(rw, size, type, op, mask) \
-static int \
-indirect_##rw##_config_##size(struct pci_controller *hose, \
- pci_dev_t dev, int offset, type val) \
-{ \
- u32 b, d,f; \
- b = PCI_BUS(dev); d = PCI_DEV(dev); f = PCI_FUNC(dev); \
- b = b - hose->first_busno; \
- dev = PCI_BDF(b, d, f); \
- if (PCI_BUS(dev) > 0) \
- out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000001); \
- else \
- out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000000); \
- cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \
- return 0; \
-}
-#else
-#define INDIRECT_PCI_OP(rw, size, type, op, mask) \
-static int \
-indirect_##rw##_config_##size(struct pci_controller *hose, \
- pci_dev_t dev, int offset, type val) \
-{ \
- u32 b, d,f; \
- b = PCI_BUS(dev); d = PCI_DEV(dev); f = PCI_FUNC(dev); \
- b = b - hose->first_busno; \
- dev = PCI_BDF(b, d, f); \
- out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000000); \
- cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \
- return 0; \
-}
-#endif
-
-#define INDIRECT_PCI_OP_ERRATA6(rw, size, type, op, mask) \
-static int \
-indirect_##rw##_config_##size(struct pci_controller *hose, \
- pci_dev_t dev, int offset, type val) \
-{ \
- unsigned int msr = mfmsr(); \
- mtmsr(msr & ~(MSR_EE | MSR_CE)); \
- out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000000); \
- cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \
- out_le32(hose->cfg_addr, 0x00000000); \
- mtmsr(msr); \
- return 0; \
-}
-
-INDIRECT_PCI_OP(read, byte, u8 *, in_8, 3)
-INDIRECT_PCI_OP(read, word, u16 *, in_le16, 2)
-INDIRECT_PCI_OP(read, dword, u32 *, in_le32, 0)
-#ifdef CONFIG_405GP
-INDIRECT_PCI_OP_ERRATA6(write, byte, u8, out_8, 3)
-INDIRECT_PCI_OP_ERRATA6(write, word, u16, out_le16, 2)
-INDIRECT_PCI_OP_ERRATA6(write, dword, u32, out_le32, 0)
-#else
-INDIRECT_PCI_OP(write, byte, u8, out_8, 3)
-INDIRECT_PCI_OP(write, word, u16, out_le16, 2)
-INDIRECT_PCI_OP(write, dword, u32, out_le32, 0)
-#endif
-
-void pci_setup_indirect(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data)
-{
- pci_set_ops(hose,
- indirect_read_config_byte,
- indirect_read_config_word,
- indirect_read_config_dword,
- indirect_write_config_byte,
- indirect_write_config_word,
- indirect_write_config_dword);
-
- hose->cfg_addr = (unsigned int *) cfg_addr;
- hose->cfg_data = (unsigned char *) cfg_data;
-}
-
-#endif /* !__I386__ && !CONFIG_IXDP425 */
-#endif /* CONFIG_PCI */
+++ /dev/null
-/*
- * (C) Copyright 2004 Tundra Semiconductor Corp.
- * Alex Bounine <alexandreb@tundra.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 initialisation for the Tsi108 EMU board.
- */
-
-#include <config.h>
-
-#ifdef CONFIG_TSI108_PCI
-
-#include <common.h>
-#include <pci.h>
-#include <asm/io.h>
-#include <tsi108.h>
-#ifdef CONFIG_OF_FLAT_TREE
-#include <ft_build.h>
-#endif
-
-struct pci_controller local_hose;
-
-void tsi108_clear_pci_error (void)
-{
- u32 err_stat, err_addr, pci_stat;
-
- /*
- * Quietly clear errors signalled as result of PCI/X configuration read
- * requests.
- */
- /* Read PB Error Log Registers */
- err_stat = *(volatile u32 *)(CFG_TSI108_CSR_BASE +
- TSI108_PB_REG_OFFSET + PB_ERRCS);
- err_addr = *(volatile u32 *)(CFG_TSI108_CSR_BASE +
- TSI108_PB_REG_OFFSET + PB_AERR);
- if (err_stat & PB_ERRCS_ES) {
- /* Clear PCI/X bus errors if applicable */
- if ((err_addr & 0xFF000000) == CFG_PCI_CFG_BASE) {
- /* Clear error flag */
- *(u32 *) (CFG_TSI108_CSR_BASE +
- TSI108_PB_REG_OFFSET + PB_ERRCS) =
- PB_ERRCS_ES;
-
- /* Clear read error reported in PB_ISR */
- *(u32 *) (CFG_TSI108_CSR_BASE +
- TSI108_PB_REG_OFFSET + PB_ISR) =
- PB_ISR_PBS_RD_ERR;
-
- /* Clear errors reported by PCI CSR (Normally Master Abort) */
- pci_stat = *(volatile u32 *)(CFG_TSI108_CSR_BASE +
- TSI108_PCI_REG_OFFSET +
- PCI_CSR);
- *(volatile u32 *)(CFG_TSI108_CSR_BASE +
- TSI108_PCI_REG_OFFSET + PCI_CSR) =
- pci_stat;
-
- *(volatile u32 *)(CFG_TSI108_CSR_BASE +
- TSI108_PCI_REG_OFFSET +
- PCI_IRP_STAT) = PCI_IRP_STAT_P_CSR;
- }
- }
-
- return;
-}
-
-unsigned int __get_pci_config_dword (u32 addr)
-{
- unsigned int retval;
-
- __asm__ __volatile__ (" lwbrx %0,0,%1\n"
- "1: eieio\n"
- "2:\n"
- ".section .fixup,\"ax\"\n"
- "3: li %0,-1\n"
- " b 2b\n"
- ".section __ex_table,\"a\"\n"
- " .align 2\n"
- " .long 1b,3b\n"
- ".text":"=r"(retval):"r"(addr));
-
- return (retval);
-}
-
-static int tsi108_read_config_dword (struct pci_controller *hose,
- pci_dev_t dev, int offset, u32 * value)
-{
- dev &= (CFG_PCI_CFG_SIZE - 1);
- dev |= (CFG_PCI_CFG_BASE | (offset & 0xfc));
- *value = __get_pci_config_dword(dev);
- if (0xFFFFFFFF == *value)
- tsi108_clear_pci_error ();
- return 0;
-}
-
-static int tsi108_write_config_dword (struct pci_controller *hose,
- pci_dev_t dev, int offset, u32 value)
-{
- dev &= (CFG_PCI_CFG_SIZE - 1);
- dev |= (CFG_PCI_CFG_BASE | (offset & 0xfc));
-
- out_le32 ((volatile unsigned *)dev, value);
-
- return 0;
-}
-
-void pci_init_board (void)
-{
- struct pci_controller *hose = (struct pci_controller *)&local_hose;
-
- hose->first_busno = 0;
- hose->last_busno = 0xff;
-
- 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 memory space */
- pci_set_region (hose->regions + 1,
- CFG_PCI_MEM_BUS,
- CFG_PCI_MEM_PHYS, CFG_PCI_MEM_SIZE, PCI_REGION_MEM);
-
- /* PCI I/O space */
- pci_set_region (hose->regions + 2,
- CFG_PCI_IO_BUS,
- CFG_PCI_IO_PHYS, CFG_PCI_IO_SIZE, PCI_REGION_IO);
-
- hose->region_count = 3;
-
- pci_set_ops (hose,
- pci_hose_read_config_byte_via_dword,
- pci_hose_read_config_word_via_dword,
- tsi108_read_config_dword,
- pci_hose_write_config_byte_via_dword,
- pci_hose_write_config_word_via_dword,
- tsi108_write_config_dword);
-
- pci_register_hose (hose);
-
- hose->last_busno = pci_hose_scan (hose);
-
- debug ("Done PCI initialization\n");
- return;
-}
-
-#ifdef CONFIG_OF_FLAT_TREE
-void
-ft_pci_setup (void *blob, bd_t *bd)
-{
- u32 *p;
- int len;
-
- p = (u32 *)ft_get_prop (blob, "/" OF_TSI "/pci@1000/bus-range", &len);
- if (p != NULL) {
- p[0] = local_hose.first_busno;
- p[1] = local_hose.last_busno;
- }
-
-}
-#endif
-
-#endif /* CONFIG_TSI108_PCI */
+++ /dev/null
-/*
- * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Andreas Heppel <aheppel@sysgo.de>
- *
- * 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
- */
-
-/*
- * Initialisation of the PCI-to-ISA bridge and disabling the BIOS
- * write protection (for flash) in function 0 of the chip.
- * Enabling function 1 (IDE controller of the chip.
- */
-
-#include <common.h>
-#include <config.h>
-
-#ifdef CFG_WINBOND_83C553
-
-#include <asm/io.h>
-#include <pci.h>
-
-#include <w83c553f.h>
-
-#define out8(addr,val) do { \
- out_8((u8*) (addr),(val)); udelay(1); \
- } while (0)
-#define out16(addr,val) do { \
- out_be16((u16*) (addr),(val)); udelay(1); \
- } while (0)
-
-extern uint ide_bus_offset[CFG_IDE_MAXBUS];
-
-void initialise_pic(void);
-void initialise_dma(void);
-
-void initialise_w83c553f(void)
-{
- pci_dev_t devbusfn;
- unsigned char reg8;
- unsigned short reg16;
- unsigned int reg32;
-
- devbusfn = pci_find_device(W83C553F_VID, W83C553F_DID, 0);
- if (devbusfn == -1)
- {
- printf("Error: Cannot find W83C553F controller on any PCI bus.");
- return;
- }
-
- pci_read_config_word(devbusfn, PCI_COMMAND, ®16);
- reg16 |= PCI_COMMAND_MASTER | PCI_COMMAND_IO | PCI_COMMAND_MEMORY;
- pci_write_config_word(devbusfn, PCI_COMMAND, reg16);
-
- pci_read_config_byte(devbusfn, WINBOND_IPADCR, ®8);
- /* 16 MB ISA memory space */
- reg8 |= (IPADCR_IPATOM4 | IPADCR_IPATOM5 | IPADCR_IPATOM6 | IPADCR_IPATOM7);
- reg8 &= ~IPADCR_MBE512;
- pci_write_config_byte(devbusfn, WINBOND_IPADCR, reg8);
-
- pci_read_config_byte(devbusfn, WINBOND_CSCR, ®8);
- /* switch off BIOS write protection */
- reg8 |= CSCR_UBIOSCSE;
- reg8 &= ~CSCR_BIOSWP;
- pci_write_config_byte(devbusfn, WINBOND_CSCR, reg8);
-
- /*
- * Interrupt routing:
- * - IDE -> IRQ 9/0
- * - INTA -> IRQ 10
- * - INTB -> IRQ 11
- * - INTC -> IRQ 14
- * - INTD -> IRQ 15
- */
- pci_write_config_byte(devbusfn, WINBOND_IDEIRCR, 0x90);
- pci_write_config_word(devbusfn, WINBOND_PCIIRCR, 0xABEF);
-
- /*
- * Read IDE bus offsets from function 1 device.
- * We must unmask the LSB indicating that ist is an IO address.
- */
- devbusfn |= PCI_BDF(0,0,1);
-
- /*
- * Switch off legacy IRQ for IDE and IDE port 1.
- */
- pci_write_config_byte(devbusfn, 0x09, 0x8F);
-
- pci_read_config_dword(devbusfn, WINDOND_IDECSR, ®32);
- reg32 &= ~(IDECSR_LEGIRQ | IDECSR_P1EN | IDECSR_P1F16);
- pci_write_config_dword(devbusfn, WINDOND_IDECSR, reg32);
-
- pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_0, &ide_bus_offset[0]);
- ide_bus_offset[0] &= ~1;
-#if CFG_IDE_MAXBUS > 1
- pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_2, &ide_bus_offset[1]);
- ide_bus_offset[1] &= ~1;
-#endif
-
- /*
- * Enable function 1, IDE -> busmastering and IO space access
- */
- pci_read_config_word(devbusfn, PCI_COMMAND, ®16);
- reg16 |= PCI_COMMAND_MASTER | PCI_COMMAND_IO;
- pci_write_config_word(devbusfn, PCI_COMMAND, reg16);
-
- /*
- * Initialise ISA interrupt controller
- */
- initialise_pic();
-
- /*
- * Initialise DMA controller
- */
- initialise_dma();
-}
-
-void initialise_pic(void)
-{
- out8(W83C553F_PIC1_ICW1, 0x11);
- out8(W83C553F_PIC1_ICW2, 0x08);
- out8(W83C553F_PIC1_ICW3, 0x04);
- out8(W83C553F_PIC1_ICW4, 0x01);
- out8(W83C553F_PIC1_OCW1, 0xfb);
- out8(W83C553F_PIC1_ELC, 0x20);
-
- out8(W83C553F_PIC2_ICW1, 0x11);
- out8(W83C553F_PIC2_ICW2, 0x08);
- out8(W83C553F_PIC2_ICW3, 0x02);
- out8(W83C553F_PIC2_ICW4, 0x01);
- out8(W83C553F_PIC2_OCW1, 0xff);
- out8(W83C553F_PIC2_ELC, 0xce);
-
- out8(W83C553F_TMR1_CMOD, 0x74);
-
- out8(W83C553F_PIC2_OCW1, 0x20);
- out8(W83C553F_PIC1_OCW1, 0x20);
-
- out8(W83C553F_PIC2_OCW1, 0x2b);
- out8(W83C553F_PIC1_OCW1, 0x2b);
-}
-
-void initialise_dma(void)
-{
- unsigned int channel;
- unsigned int rvalue1, rvalue2;
-
- /* perform a H/W reset of the devices */
-
- out8(W83C553F_DMA1 + W83C553F_DMA1_MC, 0x00);
- out16(W83C553F_DMA2 + W83C553F_DMA2_MC, 0x0000);
-
- /* initialise all channels to a sane state */
-
- for (channel = 0; channel < 4; channel++) {
- /*
- * dependent upon the channel, setup the specifics:
- *
- * demand
- * address-increment
- * autoinitialize-disable
- * verify-transfer
- */
-
- switch (channel) {
- case 0:
- rvalue1 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH0SEL|W83C553F_MODE_TT_VERIFY);
- rvalue2 = (W83C553F_MODE_TM_CASCADE|W83C553F_MODE_CH0SEL);
- break;
- case 1:
- rvalue1 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH1SEL|W83C553F_MODE_TT_VERIFY);
- rvalue2 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH1SEL|W83C553F_MODE_TT_VERIFY);
- break;
- case 2:
- rvalue1 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH2SEL|W83C553F_MODE_TT_VERIFY);
- rvalue2 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH2SEL|W83C553F_MODE_TT_VERIFY);
- break;
- case 3:
- rvalue1 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH3SEL|W83C553F_MODE_TT_VERIFY);
- rvalue2 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH3SEL|W83C553F_MODE_TT_VERIFY);
- break;
- default:
- rvalue1 = 0x00;
- rvalue2 = 0x00;
- break;
- }
-
- /* write to write mode registers */
-
- out8(W83C553F_DMA1 + W83C553F_DMA1_WM, rvalue1 & 0xFF);
- out16(W83C553F_DMA2 + W83C553F_DMA2_WM, rvalue2 & 0x00FF);
- }
-
- /* enable all channels */
-
- out8(W83C553F_DMA1 + W83C553F_DMA1_CM, 0x00);
- out16(W83C553F_DMA2 + W83C553F_DMA2_CM, 0x0000);
- /*
- * initialize the global DMA configuration
- *
- * DACK# active low
- * DREQ active high
- * fixed priority
- * channel group enable
- */
-
- out8(W83C553F_DMA1 + W83C553F_DMA1_CS, 0x00);
- out16(W83C553F_DMA2 + W83C553F_DMA2_CS, 0x0000);
-}
-
-#endif /* CFG_WINBOND_83C553 */
projects / oweals / u-boot.git / commitdiff