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-rw-r--r--drivers/pci.c526
1 files changed, 0 insertions, 526 deletions
diff --git a/drivers/pci.c b/drivers/pci.c
deleted file mode 100644
index 50ca6b0..0000000
--- a/drivers/pci.c
+++ /dev/null
@@ -1,526 +0,0 @@
-/*
- * (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 */
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