aboutsummaryrefslogtreecommitdiff
path: root/arch/sh/drivers
diff options
context:
space:
mode:
authorPaul Mundt <lethal@linux-sh.org>2009-04-20 21:46:42 +0900
committerPaul Mundt <lethal@linux-sh.org>2009-04-20 21:46:42 +0900
commit805fcc88999162b361ef0b0ce25782ef65f147d7 (patch)
tree6d39798614428034f9fada4bd6406d2100c634b6 /arch/sh/drivers
parent2d5efc190eb415dbff79ffab4f8ea731ab0288a9 (diff)
sh: pci: Kill off the last remnants of the now unused pci-auto code.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/drivers')
-rw-r--r--arch/sh/drivers/pci/Kconfig18
-rw-r--r--arch/sh/drivers/pci/Makefile1
-rw-r--r--arch/sh/drivers/pci/pci-auto.c546
-rw-r--r--arch/sh/drivers/pci/pci.c75
4 files changed, 0 insertions, 640 deletions
diff --git a/arch/sh/drivers/pci/Kconfig b/arch/sh/drivers/pci/Kconfig
index 1d53496b149..ea903a984f0 100644
--- a/arch/sh/drivers/pci/Kconfig
+++ b/arch/sh/drivers/pci/Kconfig
@@ -18,24 +18,6 @@ config SH_PCIDMA_NONCOHERENT
bridge integrated with your SH CPU, refer carefully to the chip specs
to see if you can say 'N' here. Otherwise, leave it as 'Y'.
-# Temporary config option for transitioning off of PCI_AUTO
config PCI_NEW
def_bool y
depends on PCI
-
-# This is also board-specific
-config PCI_AUTO
- bool
- depends on PCI && !PCI_NEW
- default y
-
-config PCI_AUTO_UPDATE_RESOURCES
- bool
- depends on PCI_AUTO
- default y if !SH_DREAMCAST
- help
- Selecting this option will cause the PCI auto code to leave your
- BAR values alone. Otherwise they will be updated automatically. If
- for some reason, you have a board that simply refuses to work
- with its resources updated beyond what they are when the device
- is powered up, set this to N. Everyone else will want this as Y.
diff --git a/arch/sh/drivers/pci/Makefile b/arch/sh/drivers/pci/Makefile
index e388a70d146..a8350ccfa9d 100644
--- a/arch/sh/drivers/pci/Makefile
+++ b/arch/sh/drivers/pci/Makefile
@@ -2,7 +2,6 @@
# Makefile for the PCI specific kernel interface routines under Linux.
#
obj-y += pci-lib.o
-obj-$(CONFIG_PCI_AUTO) += pci.o pci-auto.o
obj-$(CONFIG_PCI_NEW) += pci-new.o
obj-$(CONFIG_CPU_SUBTYPE_SH7751) += pci-sh7751.o ops-sh4.o
diff --git a/arch/sh/drivers/pci/pci-auto.c b/arch/sh/drivers/pci/pci-auto.c
deleted file mode 100644
index 1d715ec405b..00000000000
--- a/arch/sh/drivers/pci/pci-auto.c
+++ /dev/null
@@ -1,546 +0,0 @@
-/*
- * PCI autoconfiguration library
- *
- * Author: Matt Porter <mporter@mvista.com>
- *
- * Copyright 2000, 2001 MontaVista Software Inc.
- * Copyright 2001 Bradley D. LaRonde <brad@ltc.com>
- * Copyright 2003 Paul Mundt <lethal@linux-sh.org>
- *
- * 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.
- */
-
-/*
- * Modified for MIPS by Jun Sun, jsun@mvista.com
- *
- * . Simplify the interface between pci_auto and the rest: a single function.
- * . Assign resources from low address to upper address.
- * . change most int to u32.
- *
- * Further modified to include it as mips generic code, ppopov@mvista.com.
- *
- * 2001-10-26 Bradley D. LaRonde <brad@ltc.com>
- * - Add a top_bus argument to the "early config" functions so that
- * they can set a fake parent bus pointer to convince the underlying
- * pci ops to use type 1 configuration for sub busses.
- * - Set bridge base and limit registers correctly.
- * - Align io and memory base properly before and after bridge setup.
- * - Don't fall through to pci_setup_bars for bridge.
- * - Reformat the debug output to look more like lspci's output.
- *
- * Cloned for SuperH by M. R. Brown, mrbrown@0xd6.org
- *
- * 2003-08-05 Paul Mundt <lethal@linux-sh.org>
- * - Don't update the BAR values on systems that already have valid addresses
- * and don't want these updated for whatever reason, by way of a new config
- * option check. However, we still read in the old BAR values so that they
- * can still be reported through the debug output.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-
-#define DEBUG
-#ifdef DEBUG
-#define DBG(x...) printk(x)
-#else
-#define DBG(x...)
-#endif
-
-/*
- * These functions are used early on before PCI scanning is done
- * and all of the pci_dev and pci_bus structures have been created.
- */
-static struct pci_dev *fake_pci_dev(struct pci_channel *hose,
- int top_bus, int busnr, int devfn)
-{
- static struct pci_dev dev;
- static struct pci_bus bus;
-
- dev.bus = &bus;
- dev.sysdata = hose;
- dev.devfn = devfn;
- bus.number = busnr;
- bus.ops = hose->pci_ops;
- bus.sysdata = hose;
-
- if(busnr != top_bus)
- /* Fake a parent bus structure. */
- bus.parent = &bus;
- else
- bus.parent = NULL;
-
- return &dev;
-}
-
-#define EARLY_PCI_OP(rw, size, type) \
-static int early_##rw##_config_##size(struct pci_channel *hose, \
- int top_bus, int bus, int devfn, int offset, type value) \
-{ \
- return pci_##rw##_config_##size( \
- fake_pci_dev(hose, top_bus, bus, devfn), \
- offset, value); \
-}
-
-EARLY_PCI_OP(read, byte, u8 *)
-EARLY_PCI_OP(read, word, u16 *)
-EARLY_PCI_OP(read, dword, u32 *)
-EARLY_PCI_OP(write, byte, u8)
-EARLY_PCI_OP(write, word, u16)
-EARLY_PCI_OP(write, dword, u32)
-
-static struct resource *io_resource_inuse;
-static struct resource *mem_resource_inuse;
-
-static u32 pciauto_lower_iospc;
-static u32 pciauto_upper_iospc;
-
-static u32 pciauto_lower_memspc;
-static u32 pciauto_upper_memspc;
-
-static void __init
-pciauto_setup_bars(struct pci_channel *hose,
- int top_bus,
- int current_bus,
- int pci_devfn,
- int bar_limit)
-{
- u32 bar_response, bar_size, bar_value;
- u32 bar, addr_mask, bar_nr = 0;
- u32 * upper_limit;
- u32 * lower_limit;
- int found_mem64 = 0;
-
- for (bar = PCI_BASE_ADDRESS_0; bar <= bar_limit; bar+=4) {
- u32 bar_addr;
-
- /* Read the old BAR value */
- early_read_config_dword(hose, top_bus,
- current_bus,
- pci_devfn,
- bar,
- &bar_addr);
-
- /* Tickle the BAR and get the response */
- early_write_config_dword(hose, top_bus,
- current_bus,
- pci_devfn,
- bar,
- 0xffffffff);
-
- early_read_config_dword(hose, top_bus,
- current_bus,
- pci_devfn,
- bar,
- &bar_response);
-
- /*
- * Write the old BAR value back out, only update the BAR
- * if we implicitly want resources to be updated, which
- * is done by the generic code further down. -- PFM.
- */
- early_write_config_dword(hose, top_bus,
- current_bus,
- pci_devfn,
- bar,
- bar_addr);
-
- /* If BAR is not implemented go to the next BAR */
- if (!bar_response)
- continue;
-
- /*
- * Workaround for a BAR that doesn't use its upper word,
- * like the ALi 1535D+ PCI DC-97 Controller Modem (M5457).
- * bdl <brad@ltc.com>
- */
- if (!(bar_response & 0xffff0000))
- bar_response |= 0xffff0000;
-
-retry:
- /* Check the BAR type and set our address mask */
- if (bar_response & PCI_BASE_ADDRESS_SPACE) {
- addr_mask = PCI_BASE_ADDRESS_IO_MASK;
- upper_limit = &pciauto_upper_iospc;
- lower_limit = &pciauto_lower_iospc;
- DBG(" I/O");
- } else {
- if ((bar_response & PCI_BASE_ADDRESS_MEM_TYPE_MASK) ==
- PCI_BASE_ADDRESS_MEM_TYPE_64)
- found_mem64 = 1;
-
- addr_mask = PCI_BASE_ADDRESS_MEM_MASK;
- upper_limit = &pciauto_upper_memspc;
- lower_limit = &pciauto_lower_memspc;
- DBG(" Mem");
- }
-
-
- /* Calculate requested size */
- bar_size = ~(bar_response & addr_mask) + 1;
-
- /* Allocate a base address */
- bar_value = ((*lower_limit - 1) & ~(bar_size - 1)) + bar_size;
-
- if ((bar_value + bar_size) > *upper_limit) {
- if (bar_response & PCI_BASE_ADDRESS_SPACE) {
- if (io_resource_inuse->child) {
- io_resource_inuse =
- io_resource_inuse->child;
- pciauto_lower_iospc =
- io_resource_inuse->start;
- pciauto_upper_iospc =
- io_resource_inuse->end + 1;
- goto retry;
- }
-
- } else {
- if (mem_resource_inuse->child) {
- mem_resource_inuse =
- mem_resource_inuse->child;
- pciauto_lower_memspc =
- mem_resource_inuse->start;
- pciauto_upper_memspc =
- mem_resource_inuse->end + 1;
- goto retry;
- }
- }
- DBG(" unavailable -- skipping, value %x size %x\n",
- bar_value, bar_size);
- continue;
- }
-
- if (bar_value < *lower_limit || (bar_value + bar_size) >= *upper_limit) {
- DBG(" unavailable -- skipping, value %x size %x\n",
- bar_value, bar_size);
- continue;
- }
-
-#ifdef CONFIG_PCI_AUTO_UPDATE_RESOURCES
- /* Write it out and update our limit */
- early_write_config_dword(hose, top_bus, current_bus, pci_devfn,
- bar, bar_value);
-#endif
-
- *lower_limit = bar_value + bar_size;
-
- /*
- * 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;
- early_write_config_dword(hose, top_bus,
- current_bus,
- pci_devfn,
- bar,
- 0x00000000);
- }
-
- DBG(" at 0x%.8x [size=0x%x]\n", bar_value, bar_size);
-
- bar_nr++;
- }
-
-}
-
-static void __init
-pciauto_prescan_setup_bridge(struct pci_channel *hose,
- int top_bus,
- int current_bus,
- int pci_devfn,
- int sub_bus)
-{
- /* Configure bus number registers */
- early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
- PCI_PRIMARY_BUS, current_bus);
- early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
- PCI_SECONDARY_BUS, sub_bus + 1);
- early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
- PCI_SUBORDINATE_BUS, 0xff);
-
- /* Align memory and I/O to 1MB and 4KB boundaries. */
- pciauto_lower_memspc = (pciauto_lower_memspc + (0x100000 - 1))
- & ~(0x100000 - 1);
- pciauto_lower_iospc = (pciauto_lower_iospc + (0x1000 - 1))
- & ~(0x1000 - 1);
-
- /* Set base (lower limit) of address range behind bridge. */
- early_write_config_word(hose, top_bus, current_bus, pci_devfn,
- PCI_MEMORY_BASE, pciauto_lower_memspc >> 16);
- early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
- PCI_IO_BASE, (pciauto_lower_iospc & 0x0000f000) >> 8);
- early_write_config_word(hose, top_bus, current_bus, pci_devfn,
- PCI_IO_BASE_UPPER16, pciauto_lower_iospc >> 16);
-
- /* We don't support prefetchable memory for now, so disable */
- early_write_config_word(hose, top_bus, current_bus, pci_devfn,
- PCI_PREF_MEMORY_BASE, 0);
- early_write_config_word(hose, top_bus, current_bus, pci_devfn,
- PCI_PREF_MEMORY_LIMIT, 0);
-}
-
-static void __init
-pciauto_postscan_setup_bridge(struct pci_channel *hose,
- int top_bus,
- int current_bus,
- int pci_devfn,
- int sub_bus)
-{
- u32 temp;
-
- /*
- * [jsun] we always bump up baselines a little, so that if there
- * nothing behind P2P bridge, we don't wind up overlapping IO/MEM
- * spaces.
- */
- pciauto_lower_memspc += 1;
- pciauto_lower_iospc += 1;
-
- /* Configure bus number registers */
- early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
- PCI_SUBORDINATE_BUS, sub_bus);
-
- /* Set upper limit of address range behind bridge. */
- early_write_config_word(hose, top_bus, current_bus, pci_devfn,
- PCI_MEMORY_LIMIT, pciauto_lower_memspc >> 16);
- early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
- PCI_IO_LIMIT, (pciauto_lower_iospc & 0x0000f000) >> 8);
- early_write_config_word(hose, top_bus, current_bus, pci_devfn,
- PCI_IO_LIMIT_UPPER16, pciauto_lower_iospc >> 16);
-
- /* Align memory and I/O to 1MB and 4KB boundaries. */
- pciauto_lower_memspc = (pciauto_lower_memspc + (0x100000 - 1))
- & ~(0x100000 - 1);
- pciauto_lower_iospc = (pciauto_lower_iospc + (0x1000 - 1))
- & ~(0x1000 - 1);
-
- /* Enable memory and I/O accesses, enable bus master */
- early_read_config_dword(hose, top_bus, current_bus, pci_devfn,
- PCI_COMMAND, &temp);
- early_write_config_dword(hose, top_bus, current_bus, pci_devfn,
- PCI_COMMAND, temp | PCI_COMMAND_IO | PCI_COMMAND_MEMORY
- | PCI_COMMAND_MASTER);
-}
-
-static void __init
-pciauto_prescan_setup_cardbus_bridge(struct pci_channel *hose,
- int top_bus,
- int current_bus,
- int pci_devfn,
- int sub_bus)
-{
- /* Configure bus number registers */
- early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
- PCI_PRIMARY_BUS, current_bus);
- early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
- PCI_SECONDARY_BUS, sub_bus + 1);
- early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
- PCI_SUBORDINATE_BUS, 0xff);
-
- /* Align memory and I/O to 4KB and 4 byte boundaries. */
- pciauto_lower_memspc = (pciauto_lower_memspc + (0x1000 - 1))
- & ~(0x1000 - 1);
- pciauto_lower_iospc = (pciauto_lower_iospc + (0x4 - 1))
- & ~(0x4 - 1);
-
- early_write_config_dword(hose, top_bus, current_bus, pci_devfn,
- PCI_CB_MEMORY_BASE_0, pciauto_lower_memspc);
- early_write_config_dword(hose, top_bus, current_bus, pci_devfn,
- PCI_CB_IO_BASE_0, pciauto_lower_iospc);
-}
-
-static void __init
-pciauto_postscan_setup_cardbus_bridge(struct pci_channel *hose,
- int top_bus,
- int current_bus,
- int pci_devfn,
- int sub_bus)
-{
- u32 temp;
-
- /*
- * [jsun] we always bump up baselines a little, so that if there
- * nothing behind P2P bridge, we don't wind up overlapping IO/MEM
- * spaces.
- */
- pciauto_lower_memspc += 1;
- pciauto_lower_iospc += 1;
-
- /*
- * Configure subordinate bus number. The PCI subsystem
- * bus scan will renumber buses (reserving three additional
- * for this PCI<->CardBus bridge for the case where a CardBus
- * adapter contains a P2P or CB2CB bridge.
- */
-
- early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
- PCI_SUBORDINATE_BUS, sub_bus);
-
- /*
- * Reserve an additional 4MB for mem space and 16KB for
- * I/O space. This should cover any additional space
- * requirement of unusual CardBus devices with
- * additional bridges that can consume more address space.
- *
- * Although pcmcia-cs currently will reprogram bridge
- * windows, the goal is to add an option to leave them
- * alone and use the bridge window ranges as the regions
- * that are searched for free resources upon hot-insertion
- * of a device. This will allow a PCI<->CardBus bridge
- * configured by this routine to happily live behind a
- * P2P bridge in a system.
- */
- /* Align memory and I/O to 4KB and 4 byte boundaries. */
- pciauto_lower_memspc = (pciauto_lower_memspc + (0x1000 - 1))
- & ~(0x1000 - 1);
- pciauto_lower_iospc = (pciauto_lower_iospc + (0x4 - 1))
- & ~(0x4 - 1);
- /* Set up memory and I/O filter limits, assume 32-bit I/O space */
- early_write_config_dword(hose, top_bus, current_bus, pci_devfn,
- PCI_CB_MEMORY_LIMIT_0, pciauto_lower_memspc - 1);
- early_write_config_dword(hose, top_bus, current_bus, pci_devfn,
- PCI_CB_IO_LIMIT_0, pciauto_lower_iospc - 1);
-
- /* Enable memory and I/O accesses, enable bus master */
- early_read_config_dword(hose, top_bus, current_bus, pci_devfn,
- PCI_COMMAND, &temp);
- early_write_config_dword(hose, top_bus, current_bus, pci_devfn,
- PCI_COMMAND, temp | PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
- PCI_COMMAND_MASTER);
-}
-
-#define PCIAUTO_IDE_MODE_MASK 0x05
-
-static int __init
-pciauto_bus_scan(struct pci_channel *hose, int top_bus, int current_bus)
-{
- int sub_bus;
- u32 pci_devfn, pci_class, cmdstat, found_multi=0;
- unsigned short vid, did;
- unsigned char header_type;
- int devfn_start = 0;
- int devfn_stop = 0xff;
-
- sub_bus = current_bus;
-
- if (hose->first_devfn)
- devfn_start = hose->first_devfn;
- if (hose->last_devfn)
- devfn_stop = hose->last_devfn;
-
- for (pci_devfn=devfn_start; pci_devfn<devfn_stop; pci_devfn++) {
-
- if (PCI_FUNC(pci_devfn) && !found_multi)
- continue;
-
- early_read_config_word(hose, top_bus, current_bus, pci_devfn,
- PCI_VENDOR_ID, &vid);
-
- if (vid == 0xffff) continue;
-
- early_read_config_byte(hose, top_bus, current_bus, pci_devfn,
- PCI_HEADER_TYPE, &header_type);
-
- if (!PCI_FUNC(pci_devfn))
- found_multi = header_type & 0x80;
-
- early_read_config_word(hose, top_bus, current_bus, pci_devfn,
- PCI_DEVICE_ID, &did);
-
- early_read_config_dword(hose, top_bus, current_bus, pci_devfn,
- PCI_CLASS_REVISION, &pci_class);
-
- DBG("%.2x:%.2x.%x Class %.4x: %.4x:%.4x",
- current_bus, PCI_SLOT(pci_devfn), PCI_FUNC(pci_devfn),
- pci_class >> 16, vid, did);
- if (pci_class & 0xff)
- DBG(" (rev %.2x)", pci_class & 0xff);
- DBG("\n");
-
- if ((pci_class >> 16) == PCI_CLASS_BRIDGE_PCI) {
- DBG(" Bridge: primary=%.2x, secondary=%.2x\n",
- current_bus, sub_bus + 1);
- pciauto_prescan_setup_bridge(hose, top_bus, current_bus,
- pci_devfn, sub_bus);
- DBG("Scanning sub bus %.2x, I/O 0x%.8x, Mem 0x%.8x\n",
- sub_bus + 1,
- pciauto_lower_iospc, pciauto_lower_memspc);
- sub_bus = pciauto_bus_scan(hose, top_bus, sub_bus+1);
- DBG("Back to bus %.2x\n", current_bus);
- pciauto_postscan_setup_bridge(hose, top_bus, current_bus,
- pci_devfn, sub_bus);
- continue;
- } else if ((pci_class >> 16) == PCI_CLASS_BRIDGE_CARDBUS) {
- DBG(" CARDBUS Bridge: primary=%.2x, secondary=%.2x\n",
- current_bus, sub_bus + 1);
- DBG("PCI Autoconfig: Found CardBus bridge, device %d function %d\n", PCI_SLOT(pci_devfn), PCI_FUNC(pci_devfn));
- /* Place CardBus Socket/ExCA registers */
- pciauto_setup_bars(hose, top_bus, current_bus, pci_devfn, PCI_BASE_ADDRESS_0);
-
- pciauto_prescan_setup_cardbus_bridge(hose, top_bus,
- current_bus, pci_devfn, sub_bus);
-
- DBG("Scanning sub bus %.2x, I/O 0x%.8x, Mem 0x%.8x\n",
- sub_bus + 1,
- pciauto_lower_iospc, pciauto_lower_memspc);
- sub_bus = pciauto_bus_scan(hose, top_bus, sub_bus+1);
- DBG("Back to bus %.2x, sub_bus is %x\n", current_bus, sub_bus);
- pciauto_postscan_setup_cardbus_bridge(hose, top_bus,
- current_bus, pci_devfn, sub_bus);
- continue;
- } else if ((pci_class >> 16) == PCI_CLASS_STORAGE_IDE) {
-
- unsigned char prg_iface;
-
- early_read_config_byte(hose, top_bus, current_bus,
- pci_devfn, PCI_CLASS_PROG, &prg_iface);
- if (!(prg_iface & PCIAUTO_IDE_MODE_MASK)) {
- DBG("Skipping legacy mode IDE controller\n");
- continue;
- }
- }
-
- /*
- * Found a peripheral, enable some standard
- * settings
- */
- early_read_config_dword(hose, top_bus, current_bus, pci_devfn,
- PCI_COMMAND, &cmdstat);
- early_write_config_dword(hose, top_bus, current_bus, pci_devfn,
- PCI_COMMAND, cmdstat | PCI_COMMAND_IO |
- PCI_COMMAND_MEMORY |
- PCI_COMMAND_MASTER);
- early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
- PCI_LATENCY_TIMER, 0x80);
-
- /* Allocate PCI I/O and/or memory space */
- pciauto_setup_bars(hose, top_bus, current_bus, pci_devfn, PCI_BASE_ADDRESS_5);
- }
- return sub_bus;
-}
-
-int __init
-pciauto_assign_resources(int busno, struct pci_channel *hose)
-{
- /* setup resource limits */
- io_resource_inuse = hose->io_resource;
- mem_resource_inuse = hose->mem_resource;
-
- pciauto_lower_iospc = io_resource_inuse->start;
- pciauto_upper_iospc = io_resource_inuse->end + 1;
- pciauto_lower_memspc = mem_resource_inuse->start;
- pciauto_upper_memspc = mem_resource_inuse->end + 1;
- DBG("Autoconfig PCI channel 0x%p\n", hose);
- DBG("Scanning bus %.2x, I/O 0x%.8x:0x%.8x, Mem 0x%.8x:0x%.8x\n",
- busno, pciauto_lower_iospc, pciauto_upper_iospc,
- pciauto_lower_memspc, pciauto_upper_memspc);
-
- return pciauto_bus_scan(hose, busno, busno);
-}
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
deleted file mode 100644
index 8c332b2a464..00000000000
--- a/arch/sh/drivers/pci/pci.c
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * arch/sh/drivers/pci/pci.c
- *
- * Copyright (c) 2002 M. R. Brown <mrbrown@linux-sh.org>
- * Copyright (c) 2004 - 2006 Paul Mundt <lethal@linux-sh.org>
- *
- * These functions are collected here to reduce duplication of common
- * code amongst the many platform-specific PCI support code files.
- *
- * These routines require the following board-specific routines:
- * void pcibios_fixup_irqs();
- *
- * See include/asm-sh/pci.h for more information.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/dma-debug.h>
-#include <asm/io.h>
-
-static int __init pcibios_init(void)
-{
- struct pci_channel *p;
- struct pci_bus *bus;
- int busno;
-
- /* init channels */
- busno = 0;
- for (p = board_pci_channels; p->init; p++) {
- if (p->init(p) == 0)
- p->enabled = 1;
- else
- pr_err("Unable to init pci channel %d\n", busno);
- busno++;
- }
-
-#ifdef CONFIG_PCI_AUTO
- /* assign resources */
- busno = 0;
- for (p = board_pci_channels; p->init; p++)
- if (p->enabled)
- busno = pciauto_assign_resources(busno, p) + 1;
-#endif
-
- /* scan the buses */
- busno = 0;
- for (p = board_pci_channels; p->init; p++) {
- if (p->enabled) {
- bus = pci_scan_bus(busno, p->pci_ops, p);
- busno = bus->subordinate + 1;
- }
- }
-
- pci_fixup_irqs(pci_common_swizzle, pcibios_map_platform_irq);
-
- dma_debug_add_bus(&pci_bus_type);
-
- return 0;
-}
-subsys_initcall(pcibios_init);
-
-/*
- * Called after each bus is probed, but before its children
- * are examined.
- */
-void __devinit __weak pcibios_fixup_bus(struct pci_bus *bus)
-{
- pci_read_bridge_bases(bus);
-}
-
-EXPORT_SYMBOL(board_pci_channels);