sh: pci: Kill off the last remnants of the now unused pci-auto code.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
parent
2d5efc190e
commit
805fcc8899
@ -18,24 +18,6 @@ config SH_PCIDMA_NONCOHERENT
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bridge integrated with your SH CPU, refer carefully to the chip specs
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bridge integrated with your SH CPU, refer carefully to the chip specs
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to see if you can say 'N' here. Otherwise, leave it as 'Y'.
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to see if you can say 'N' here. Otherwise, leave it as 'Y'.
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# Temporary config option for transitioning off of PCI_AUTO
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config PCI_NEW
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config PCI_NEW
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def_bool y
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def_bool y
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depends on PCI
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depends on PCI
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# This is also board-specific
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config PCI_AUTO
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bool
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depends on PCI && !PCI_NEW
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default y
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config PCI_AUTO_UPDATE_RESOURCES
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bool
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depends on PCI_AUTO
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default y if !SH_DREAMCAST
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help
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Selecting this option will cause the PCI auto code to leave your
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BAR values alone. Otherwise they will be updated automatically. If
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for some reason, you have a board that simply refuses to work
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with its resources updated beyond what they are when the device
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is powered up, set this to N. Everyone else will want this as Y.
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@ -2,7 +2,6 @@
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# Makefile for the PCI specific kernel interface routines under Linux.
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# Makefile for the PCI specific kernel interface routines under Linux.
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#
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#
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obj-y += pci-lib.o
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obj-y += pci-lib.o
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obj-$(CONFIG_PCI_AUTO) += pci.o pci-auto.o
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obj-$(CONFIG_PCI_NEW) += pci-new.o
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obj-$(CONFIG_PCI_NEW) += pci-new.o
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obj-$(CONFIG_CPU_SUBTYPE_SH7751) += pci-sh7751.o ops-sh4.o
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obj-$(CONFIG_CPU_SUBTYPE_SH7751) += pci-sh7751.o ops-sh4.o
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@ -1,546 +0,0 @@
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/*
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* PCI autoconfiguration library
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*
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* Author: Matt Porter <mporter@mvista.com>
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*
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* Copyright 2000, 2001 MontaVista Software Inc.
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* Copyright 2001 Bradley D. LaRonde <brad@ltc.com>
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* Copyright 2003 Paul Mundt <lethal@linux-sh.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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/*
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* Modified for MIPS by Jun Sun, jsun@mvista.com
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*
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* . Simplify the interface between pci_auto and the rest: a single function.
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* . Assign resources from low address to upper address.
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* . change most int to u32.
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*
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* Further modified to include it as mips generic code, ppopov@mvista.com.
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*
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* 2001-10-26 Bradley D. LaRonde <brad@ltc.com>
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* - Add a top_bus argument to the "early config" functions so that
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* they can set a fake parent bus pointer to convince the underlying
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* pci ops to use type 1 configuration for sub busses.
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* - Set bridge base and limit registers correctly.
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* - Align io and memory base properly before and after bridge setup.
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* - Don't fall through to pci_setup_bars for bridge.
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* - Reformat the debug output to look more like lspci's output.
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*
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* Cloned for SuperH by M. R. Brown, mrbrown@0xd6.org
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*
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* 2003-08-05 Paul Mundt <lethal@linux-sh.org>
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* - Don't update the BAR values on systems that already have valid addresses
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* and don't want these updated for whatever reason, by way of a new config
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* option check. However, we still read in the old BAR values so that they
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* can still be reported through the debug output.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/pci.h>
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#define DEBUG
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#ifdef DEBUG
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#define DBG(x...) printk(x)
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#else
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#define DBG(x...)
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#endif
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/*
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* These functions are used early on before PCI scanning is done
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* and all of the pci_dev and pci_bus structures have been created.
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*/
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static struct pci_dev *fake_pci_dev(struct pci_channel *hose,
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int top_bus, int busnr, int devfn)
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{
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static struct pci_dev dev;
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static struct pci_bus bus;
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dev.bus = &bus;
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dev.sysdata = hose;
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dev.devfn = devfn;
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bus.number = busnr;
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bus.ops = hose->pci_ops;
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bus.sysdata = hose;
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if(busnr != top_bus)
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/* Fake a parent bus structure. */
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bus.parent = &bus;
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else
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bus.parent = NULL;
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return &dev;
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}
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#define EARLY_PCI_OP(rw, size, type) \
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static int early_##rw##_config_##size(struct pci_channel *hose, \
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int top_bus, int bus, int devfn, int offset, type value) \
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{ \
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return pci_##rw##_config_##size( \
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fake_pci_dev(hose, top_bus, bus, devfn), \
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offset, value); \
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}
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EARLY_PCI_OP(read, byte, u8 *)
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EARLY_PCI_OP(read, word, u16 *)
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EARLY_PCI_OP(read, dword, u32 *)
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EARLY_PCI_OP(write, byte, u8)
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EARLY_PCI_OP(write, word, u16)
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EARLY_PCI_OP(write, dword, u32)
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static struct resource *io_resource_inuse;
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static struct resource *mem_resource_inuse;
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static u32 pciauto_lower_iospc;
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static u32 pciauto_upper_iospc;
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static u32 pciauto_lower_memspc;
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static u32 pciauto_upper_memspc;
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static void __init
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pciauto_setup_bars(struct pci_channel *hose,
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int top_bus,
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int current_bus,
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int pci_devfn,
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int bar_limit)
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{
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u32 bar_response, bar_size, bar_value;
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u32 bar, addr_mask, bar_nr = 0;
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u32 * upper_limit;
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u32 * lower_limit;
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int found_mem64 = 0;
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for (bar = PCI_BASE_ADDRESS_0; bar <= bar_limit; bar+=4) {
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u32 bar_addr;
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/* Read the old BAR value */
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early_read_config_dword(hose, top_bus,
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current_bus,
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pci_devfn,
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bar,
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&bar_addr);
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/* Tickle the BAR and get the response */
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early_write_config_dword(hose, top_bus,
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current_bus,
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pci_devfn,
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bar,
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0xffffffff);
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early_read_config_dword(hose, top_bus,
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current_bus,
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pci_devfn,
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bar,
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&bar_response);
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/*
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* Write the old BAR value back out, only update the BAR
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* if we implicitly want resources to be updated, which
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* is done by the generic code further down. -- PFM.
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*/
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early_write_config_dword(hose, top_bus,
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current_bus,
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pci_devfn,
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bar,
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bar_addr);
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/* If BAR is not implemented go to the next BAR */
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if (!bar_response)
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continue;
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/*
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* Workaround for a BAR that doesn't use its upper word,
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* like the ALi 1535D+ PCI DC-97 Controller Modem (M5457).
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* bdl <brad@ltc.com>
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*/
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if (!(bar_response & 0xffff0000))
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bar_response |= 0xffff0000;
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retry:
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/* Check the BAR type and set our address mask */
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if (bar_response & PCI_BASE_ADDRESS_SPACE) {
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addr_mask = PCI_BASE_ADDRESS_IO_MASK;
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upper_limit = &pciauto_upper_iospc;
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lower_limit = &pciauto_lower_iospc;
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DBG(" I/O");
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} else {
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if ((bar_response & PCI_BASE_ADDRESS_MEM_TYPE_MASK) ==
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PCI_BASE_ADDRESS_MEM_TYPE_64)
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found_mem64 = 1;
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addr_mask = PCI_BASE_ADDRESS_MEM_MASK;
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upper_limit = &pciauto_upper_memspc;
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lower_limit = &pciauto_lower_memspc;
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DBG(" Mem");
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}
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/* Calculate requested size */
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bar_size = ~(bar_response & addr_mask) + 1;
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/* Allocate a base address */
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bar_value = ((*lower_limit - 1) & ~(bar_size - 1)) + bar_size;
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if ((bar_value + bar_size) > *upper_limit) {
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if (bar_response & PCI_BASE_ADDRESS_SPACE) {
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if (io_resource_inuse->child) {
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io_resource_inuse =
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io_resource_inuse->child;
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pciauto_lower_iospc =
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io_resource_inuse->start;
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pciauto_upper_iospc =
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io_resource_inuse->end + 1;
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goto retry;
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}
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} else {
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if (mem_resource_inuse->child) {
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mem_resource_inuse =
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mem_resource_inuse->child;
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pciauto_lower_memspc =
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mem_resource_inuse->start;
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pciauto_upper_memspc =
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mem_resource_inuse->end + 1;
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goto retry;
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}
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}
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DBG(" unavailable -- skipping, value %x size %x\n",
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bar_value, bar_size);
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continue;
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}
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if (bar_value < *lower_limit || (bar_value + bar_size) >= *upper_limit) {
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DBG(" unavailable -- skipping, value %x size %x\n",
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bar_value, bar_size);
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continue;
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}
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#ifdef CONFIG_PCI_AUTO_UPDATE_RESOURCES
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/* Write it out and update our limit */
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early_write_config_dword(hose, top_bus, current_bus, pci_devfn,
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bar, bar_value);
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#endif
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*lower_limit = bar_value + bar_size;
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/*
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* If we are a 64-bit decoder then increment to the
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* upper 32 bits of the bar and force it to locate
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* in the lower 4GB of memory.
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*/
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if (found_mem64) {
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bar += 4;
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early_write_config_dword(hose, top_bus,
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current_bus,
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pci_devfn,
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bar,
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0x00000000);
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}
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DBG(" at 0x%.8x [size=0x%x]\n", bar_value, bar_size);
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bar_nr++;
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}
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}
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static void __init
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pciauto_prescan_setup_bridge(struct pci_channel *hose,
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int top_bus,
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int current_bus,
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int pci_devfn,
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int sub_bus)
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{
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/* Configure bus number registers */
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early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
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PCI_PRIMARY_BUS, current_bus);
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early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
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PCI_SECONDARY_BUS, sub_bus + 1);
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early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
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PCI_SUBORDINATE_BUS, 0xff);
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/* Align memory and I/O to 1MB and 4KB boundaries. */
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pciauto_lower_memspc = (pciauto_lower_memspc + (0x100000 - 1))
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& ~(0x100000 - 1);
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pciauto_lower_iospc = (pciauto_lower_iospc + (0x1000 - 1))
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& ~(0x1000 - 1);
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/* Set base (lower limit) of address range behind bridge. */
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early_write_config_word(hose, top_bus, current_bus, pci_devfn,
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PCI_MEMORY_BASE, pciauto_lower_memspc >> 16);
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early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
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PCI_IO_BASE, (pciauto_lower_iospc & 0x0000f000) >> 8);
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early_write_config_word(hose, top_bus, current_bus, pci_devfn,
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PCI_IO_BASE_UPPER16, pciauto_lower_iospc >> 16);
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/* We don't support prefetchable memory for now, so disable */
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early_write_config_word(hose, top_bus, current_bus, pci_devfn,
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PCI_PREF_MEMORY_BASE, 0);
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early_write_config_word(hose, top_bus, current_bus, pci_devfn,
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PCI_PREF_MEMORY_LIMIT, 0);
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}
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static void __init
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pciauto_postscan_setup_bridge(struct pci_channel *hose,
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int top_bus,
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int current_bus,
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int pci_devfn,
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int sub_bus)
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{
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u32 temp;
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/*
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* [jsun] we always bump up baselines a little, so that if there
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* nothing behind P2P bridge, we don't wind up overlapping IO/MEM
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* spaces.
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*/
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pciauto_lower_memspc += 1;
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pciauto_lower_iospc += 1;
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/* Configure bus number registers */
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early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
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PCI_SUBORDINATE_BUS, sub_bus);
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/* Set upper limit of address range behind bridge. */
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early_write_config_word(hose, top_bus, current_bus, pci_devfn,
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PCI_MEMORY_LIMIT, pciauto_lower_memspc >> 16);
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early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
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PCI_IO_LIMIT, (pciauto_lower_iospc & 0x0000f000) >> 8);
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early_write_config_word(hose, top_bus, current_bus, pci_devfn,
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PCI_IO_LIMIT_UPPER16, pciauto_lower_iospc >> 16);
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/* Align memory and I/O to 1MB and 4KB boundaries. */
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pciauto_lower_memspc = (pciauto_lower_memspc + (0x100000 - 1))
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& ~(0x100000 - 1);
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pciauto_lower_iospc = (pciauto_lower_iospc + (0x1000 - 1))
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& ~(0x1000 - 1);
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/* Enable memory and I/O accesses, enable bus master */
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early_read_config_dword(hose, top_bus, current_bus, pci_devfn,
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PCI_COMMAND, &temp);
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early_write_config_dword(hose, top_bus, current_bus, pci_devfn,
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PCI_COMMAND, temp | PCI_COMMAND_IO | PCI_COMMAND_MEMORY
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| PCI_COMMAND_MASTER);
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}
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|
|
||||||
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);
|
|
||||||
}
|
|
||||||
@ -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);
|
|
||||||
@ -19,8 +19,6 @@
|
|||||||
struct pci_channel {
|
struct pci_channel {
|
||||||
struct pci_channel *next;
|
struct pci_channel *next;
|
||||||
|
|
||||||
int (*init)(struct pci_channel *chan);
|
|
||||||
|
|
||||||
struct pci_ops *pci_ops;
|
struct pci_ops *pci_ops;
|
||||||
struct resource *io_resource;
|
struct resource *io_resource;
|
||||||
struct resource *mem_resource;
|
struct resource *mem_resource;
|
||||||
@ -28,20 +26,11 @@ struct pci_channel {
|
|||||||
unsigned long io_offset;
|
unsigned long io_offset;
|
||||||
unsigned long mem_offset;
|
unsigned long mem_offset;
|
||||||
|
|
||||||
int first_devfn;
|
|
||||||
int last_devfn;
|
|
||||||
int enabled;
|
|
||||||
|
|
||||||
unsigned long reg_base;
|
unsigned long reg_base;
|
||||||
|
|
||||||
unsigned long io_map_base;
|
unsigned long io_map_base;
|
||||||
};
|
};
|
||||||
|
|
||||||
/*
|
|
||||||
* Each board initializes this array and terminates it with a NULL entry.
|
|
||||||
*/
|
|
||||||
extern struct pci_channel board_pci_channels[];
|
|
||||||
|
|
||||||
extern void register_pci_controller(struct pci_channel *hose);
|
extern void register_pci_controller(struct pci_channel *hose);
|
||||||
|
|
||||||
extern unsigned long PCIBIOS_MIN_IO, PCIBIOS_MIN_MEM;
|
extern unsigned long PCIBIOS_MIN_IO, PCIBIOS_MIN_MEM;
|
||||||
@ -122,13 +111,8 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
|
|||||||
#endif
|
#endif
|
||||||
|
|
||||||
/* Board-specific fixup routines. */
|
/* Board-specific fixup routines. */
|
||||||
int pcibios_init_platform(void);
|
|
||||||
int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin);
|
int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin);
|
||||||
|
|
||||||
#ifdef CONFIG_PCI_AUTO
|
|
||||||
int pciauto_assign_resources(int busno, struct pci_channel *hose);
|
|
||||||
#endif
|
|
||||||
|
|
||||||
extern void pcibios_resource_to_bus(struct pci_dev *dev,
|
extern void pcibios_resource_to_bus(struct pci_dev *dev,
|
||||||
struct pci_bus_region *region, struct resource *res);
|
struct pci_bus_region *region, struct resource *res);
|
||||||
|
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user