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Diffstat (limited to 'arch/sh/drivers/pci/ops-sh4.c')
-rw-r--r--arch/sh/drivers/pci/ops-sh4.c94
1 files changed, 16 insertions, 78 deletions
diff --git a/arch/sh/drivers/pci/ops-sh4.c b/arch/sh/drivers/pci/ops-sh4.c
index 710a3b0306e..b6234203e0a 100644
--- a/arch/sh/drivers/pci/ops-sh4.c
+++ b/arch/sh/drivers/pci/ops-sh4.c
@@ -1,24 +1,23 @@
/*
* Generic SH-4 / SH-4A PCIC operations (SH7751, SH7780).
*
- * Copyright (C) 2002 - 2006 Paul Mundt
+ * Copyright (C) 2002 - 2009 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License v2. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/pci.h>
+#include <linux/io.h>
+#include <linux/spinlock.h>
#include <asm/addrspace.h>
-#include <asm/io.h>
#include "pci-sh4.h"
/*
* Direct access to PCI hardware...
*/
#define CONFIG_CMD(bus, devfn, where) \
- P1SEGADDR((bus->number << 16) | (devfn << 8) | (where & ~3))
-
-static DEFINE_SPINLOCK(sh4_pci_lock);
+ (0x80000000 | (bus->number << 16) | (devfn << 8) | (where & ~3))
/*
* Functions for accessing PCI configuration space with type 1 accesses
@@ -26,6 +25,7 @@ static DEFINE_SPINLOCK(sh4_pci_lock);
static int sh4_pci_read(struct pci_bus *bus, unsigned int devfn,
int where, int size, u32 *val)
{
+ struct pci_channel *chan = bus->sysdata;
unsigned long flags;
u32 data;
@@ -33,10 +33,10 @@ static int sh4_pci_read(struct pci_bus *bus, unsigned int devfn,
* PCIPDR may only be accessed as 32 bit words,
* so we must do byte alignment by hand
*/
- spin_lock_irqsave(&sh4_pci_lock, flags);
- pci_write_reg(CONFIG_CMD(bus, devfn, where), SH4_PCIPAR);
- data = pci_read_reg(SH4_PCIPDR);
- spin_unlock_irqrestore(&sh4_pci_lock, flags);
+ raw_spin_lock_irqsave(&pci_config_lock, flags);
+ pci_write_reg(chan, CONFIG_CMD(bus, devfn, where), SH4_PCIPAR);
+ data = pci_read_reg(chan, SH4_PCIPDR);
+ raw_spin_unlock_irqrestore(&pci_config_lock, flags);
switch (size) {
case 1:
@@ -63,14 +63,15 @@ static int sh4_pci_read(struct pci_bus *bus, unsigned int devfn,
static int sh4_pci_write(struct pci_bus *bus, unsigned int devfn,
int where, int size, u32 val)
{
+ struct pci_channel *chan = bus->sysdata;
unsigned long flags;
int shift;
u32 data;
- spin_lock_irqsave(&sh4_pci_lock, flags);
- pci_write_reg(CONFIG_CMD(bus, devfn, where), SH4_PCIPAR);
- data = pci_read_reg(SH4_PCIPDR);
- spin_unlock_irqrestore(&sh4_pci_lock, flags);
+ raw_spin_lock_irqsave(&pci_config_lock, flags);
+ pci_write_reg(chan, CONFIG_CMD(bus, devfn, where), SH4_PCIPAR);
+ data = pci_read_reg(chan, SH4_PCIPDR);
+ raw_spin_unlock_irqrestore(&pci_config_lock, flags);
switch (size) {
case 1:
@@ -90,7 +91,7 @@ static int sh4_pci_write(struct pci_bus *bus, unsigned int devfn,
return PCIBIOS_FUNC_NOT_SUPPORTED;
}
- pci_write_reg(data, SH4_PCIPDR);
+ pci_write_reg(chan, data, SH4_PCIPDR);
return PCIBIOS_SUCCESSFUL;
}
@@ -100,70 +101,7 @@ struct pci_ops sh4_pci_ops = {
.write = sh4_pci_write,
};
-/*
- * Not really related to pci_ops, but it's common and not worth shoving
- * somewhere else for now..
- */
-static unsigned int pci_probe = PCI_PROBE_CONF1;
-
-int __init sh4_pci_check_direct(void)
-{
- /*
- * Check if configuration works.
- */
- if (pci_probe & PCI_PROBE_CONF1) {
- unsigned int tmp = pci_read_reg(SH4_PCIPAR);
-
- pci_write_reg(P1SEG, SH4_PCIPAR);
-
- if (pci_read_reg(SH4_PCIPAR) == P1SEG) {
- pci_write_reg(tmp, SH4_PCIPAR);
- printk(KERN_INFO "PCI: Using configuration type 1\n");
- request_region(PCI_REG(SH4_PCIPAR), 8, "PCI conf1");
-
- return 0;
- }
-
- pci_write_reg(tmp, SH4_PCIPAR);
- }
-
- pr_debug("PCI: pci_check_direct failed\n");
- return -EINVAL;
-}
-
-/* Handle generic fixups */
-static void __init pci_fixup_ide_bases(struct pci_dev *d)
-{
- int i;
-
- /*
- * PCI IDE controllers use non-standard I/O port decoding, respect it.
- */
- if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE)
- return;
- pr_debug("PCI: IDE base address fixup for %s\n", pci_name(d));
- for(i = 0; i < 4; i++) {
- struct resource *r = &d->resource[i];
-
- if ((r->start & ~0x80) == 0x374) {
- r->start |= 2;
- r->end = r->start;
- }
- }
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases);
-
-char * __devinit pcibios_setup(char *str)
-{
- if (!strcmp(str, "off")) {
- pci_probe = 0;
- return NULL;
- }
-
- return str;
-}
-
-int __attribute__((weak)) pci_fixup_pcic(void)
+int __attribute__((weak)) pci_fixup_pcic(struct pci_channel *chan)
{
/* Nothing to do. */
return 0;