sh: pass along struct pci_channel

These patches rework the pci code for the sh architecture.

Currently each board implements some kind of ioport to address mapping.
Some boards use generic_io_base others try passing addresses as io ports.
This is the first set of patches that try to unify the pci code as much
as possible to avoid duplicated code. This will in the end lead to fewer
lines board specific code and more generic code.

This patch makes sure a struct pci_channel pointer is passed along to
various pci functions such as pci_read_reg(), pci_write_reg(),
pci_fixup_pcic(), sh7751_pcic_init() and sh7780_pcic_init().

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

19 files changed, 164 insertions, 149 deletions

diff --git a/arch/sh/drivers/pci/fixups-lboxre2.c b/arch/sh/drivers/pci/fixups-lboxre2.c
index 1c1d412..a82011d 100644
--- a/arch/sh/drivers/pci/fixups-lboxre2.c
+++ b/arch/sh/drivers/pci/fixups-lboxre2.c
@@ -9,33 +9,34 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  */
+#include <linux/pci.h>
 #include "pci-sh4.h"
 
 #define PCIMCR_MRSET_OFF	0xBFFFFFFF
 #define PCIMCR_RFSH_OFF		0xFFFFFFFB
 
-int pci_fixup_pcic(void)
+int pci_fixup_pcic(struct pci_channel *chan)
 {
 	unsigned long bcr1, mcr;
 
 	bcr1 = ctrl_inl(SH7751_BCR1);
 	bcr1 |= 0x40080000;	/* Enable Bit 19 BREQEN, set PCIC to slave */
-	pci_write_reg(bcr1, SH4_PCIBCR1);
+	pci_write_reg(chan, bcr1, SH4_PCIBCR1);
 
 	/* Enable all interrupts, so we known what to fix */
-	pci_write_reg(0x0000c3ff, SH4_PCIINTM);
-	pci_write_reg(0x0000380f, SH4_PCIAINTM);
-	pci_write_reg(0xfb900047, SH7751_PCICONF1);
-	pci_write_reg(0xab000001, SH7751_PCICONF4);
+	pci_write_reg(chan, 0x0000c3ff, SH4_PCIINTM);
+	pci_write_reg(chan, 0x0000380f, SH4_PCIAINTM);
+	pci_write_reg(chan, 0xfb900047, SH7751_PCICONF1);
+	pci_write_reg(chan, 0xab000001, SH7751_PCICONF4);
 
 	mcr = ctrl_inl(SH7751_MCR);
 	mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF;
-	pci_write_reg(mcr, SH4_PCIMCR);
+	pci_write_reg(chan, mcr, SH4_PCIMCR);
 
-	pci_write_reg(0x0c000000, SH7751_PCICONF5);
-	pci_write_reg(0xd0000000, SH7751_PCICONF6);
-	pci_write_reg(0x0c000000, SH4_PCILAR0);
-	pci_write_reg(0x00000000, SH4_PCILAR1);
+	pci_write_reg(chan, 0x0c000000, SH7751_PCICONF5);
+	pci_write_reg(chan, 0xd0000000, SH7751_PCICONF6);
+	pci_write_reg(chan, 0x0c000000, SH4_PCILAR0);
+	pci_write_reg(chan, 0x00000000, SH4_PCILAR1);
 
 	return 0;
 }
diff --git a/arch/sh/drivers/pci/fixups-r7780rp.c b/arch/sh/drivers/pci/fixups-r7780rp.c
index 3e321df..5b25021 100644
--- a/arch/sh/drivers/pci/fixups-r7780rp.c
+++ b/arch/sh/drivers/pci/fixups-r7780rp.c
@@ -14,32 +14,33 @@
 #include "pci-sh4.h"
 #include <asm/io.h>
 
-int pci_fixup_pcic(void)
+int pci_fixup_pcic(struct pci_channel *chan)
 {
-	pci_write_reg(0x000043ff, SH4_PCIINTM);
-	pci_write_reg(0x0000380f, SH4_PCIAINTM);
+	pci_write_reg(chan, 0x000043ff, SH4_PCIINTM);
+	pci_write_reg(chan, 0x0000380f, SH4_PCIAINTM);
 
-	pci_write_reg(0xfbb00047, SH7780_PCICMD);
-	pci_write_reg(0x00000000, SH7780_PCIIBAR);
+	pci_write_reg(chan, 0xfbb00047, SH7780_PCICMD);
+	pci_write_reg(chan, 0x00000000, SH7780_PCIIBAR);
 
-	pci_write_reg(0x00011912, SH7780_PCISVID);
-	pci_write_reg(0x08000000, SH7780_PCICSCR0);
-	pci_write_reg(0x0000001b, SH7780_PCICSAR0);
-	pci_write_reg(0xfd000000, SH7780_PCICSCR1);
-	pci_write_reg(0x0000000f, SH7780_PCICSAR1);
+	pci_write_reg(chan, 0x00011912, SH7780_PCISVID);
+	pci_write_reg(chan, 0x08000000, SH7780_PCICSCR0);
+	pci_write_reg(chan, 0x0000001b, SH7780_PCICSAR0);
+	pci_write_reg(chan, 0xfd000000, SH7780_PCICSCR1);
+	pci_write_reg(chan, 0x0000000f, SH7780_PCICSAR1);
 
-	pci_write_reg(0xfd000000, SH7780_PCIMBR0);
-	pci_write_reg(0x00fc0000, SH7780_PCIMBMR0);
+	pci_write_reg(chan, 0xfd000000, SH7780_PCIMBR0);
+	pci_write_reg(chan, 0x00fc0000, SH7780_PCIMBMR0);
 
 #ifdef CONFIG_32BIT
-	pci_write_reg(0xc0000000, SH7780_PCIMBR2);
-	pci_write_reg(0x20000000 - SH7780_PCI_IO_SIZE, SH7780_PCIMBMR2);
+	pci_write_reg(chan, 0xc0000000, SH7780_PCIMBR2);
+	pci_write_reg(chan, 0x20000000 - SH7780_PCI_IO_SIZE, SH7780_PCIMBMR2);
 #endif
 
 	/* Set IOBR for windows containing area specified in pci.h */
-	pci_write_reg((PCIBIOS_MIN_IO & ~(SH7780_PCI_IO_SIZE - 1)),
+	pci_write_reg(chan, (PCIBIOS_MIN_IO & ~(SH7780_PCI_IO_SIZE - 1)),
 		      SH7780_PCIIOBR);
-	pci_write_reg(((SH7780_PCI_IO_SIZE-1) & (7<<18)), SH7780_PCIIOBMR);
+	pci_write_reg(chan, ((SH7780_PCI_IO_SIZE-1) & (7<<18)),
+		      SH7780_PCIIOBMR);
 
 	return 0;
 }
diff --git a/arch/sh/drivers/pci/fixups-rts7751r2d.c b/arch/sh/drivers/pci/fixups-rts7751r2d.c
index 904bce8..3885233 100644
--- a/arch/sh/drivers/pci/fixups-rts7751r2d.c
+++ b/arch/sh/drivers/pci/fixups-rts7751r2d.c
@@ -10,34 +10,35 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  */
+#include <linux/pci.h>
 #include "pci-sh4.h"
 
 #define PCIMCR_MRSET_OFF	0xBFFFFFFF
 #define PCIMCR_RFSH_OFF		0xFFFFFFFB
 
-int pci_fixup_pcic(void)
+int pci_fixup_pcic(struct pci_channel *chan)
 {
 	unsigned long bcr1, mcr;
 
 	bcr1 = ctrl_inl(SH7751_BCR1);
 	bcr1 |= 0x40080000;	/* Enable Bit 19 BREQEN, set PCIC to slave */
-	pci_write_reg(bcr1, SH4_PCIBCR1);
+	pci_write_reg(chan, bcr1, SH4_PCIBCR1);
 
 	/* Enable all interrupts, so we known what to fix */
-	pci_write_reg(0x0000c3ff, SH4_PCIINTM);
-	pci_write_reg(0x0000380f, SH4_PCIAINTM);
+	pci_write_reg(chan, 0x0000c3ff, SH4_PCIINTM);
+	pci_write_reg(chan, 0x0000380f, SH4_PCIAINTM);
 
-	pci_write_reg(0xfb900047, SH7751_PCICONF1);
-	pci_write_reg(0xab000001, SH7751_PCICONF4);
+	pci_write_reg(chan, 0xfb900047, SH7751_PCICONF1);
+	pci_write_reg(chan, 0xab000001, SH7751_PCICONF4);
 
 	mcr = ctrl_inl(SH7751_MCR);
 	mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF;
-	pci_write_reg(mcr, SH4_PCIMCR);
+	pci_write_reg(chan, mcr, SH4_PCIMCR);
 
-	pci_write_reg(0x0c000000, SH7751_PCICONF5);
-	pci_write_reg(0xd0000000, SH7751_PCICONF6);
-	pci_write_reg(0x0c000000, SH4_PCILAR0);
-	pci_write_reg(0x00000000, SH4_PCILAR1);
+	pci_write_reg(chan, 0x0c000000, SH7751_PCICONF5);
+	pci_write_reg(chan, 0xd0000000, SH7751_PCICONF6);
+	pci_write_reg(chan, 0x0c000000, SH4_PCILAR0);
+	pci_write_reg(chan, 0x00000000, SH4_PCILAR1);
 
 	return 0;
 }
diff --git a/arch/sh/drivers/pci/fixups-sdk7780.c b/arch/sh/drivers/pci/fixups-sdk7780.c
index 2f88630..3f6754a 100644
--- a/arch/sh/drivers/pci/fixups-sdk7780.c
+++ b/arch/sh/drivers/pci/fixups-sdk7780.c
@@ -14,46 +14,48 @@
 #include "pci-sh4.h"
 #include <asm/io.h>
 
-int pci_fixup_pcic(void)
+int pci_fixup_pcic(struct pci_channel *chan)
 {
 	ctrl_outl(0x00000001, SH7780_PCI_VCR2);
 
 	/* Enable all interrupts, so we know what to fix */
-	pci_write_reg(0x0000C3FF, SH7780_PCIIMR);
-	pci_write_reg(0x0000380F, SH7780_PCIAINTM);
+	pci_write_reg(chan, 0x0000C3FF, SH7780_PCIIMR);
+	pci_write_reg(chan, 0x0000380F, SH7780_PCIAINTM);
 
 	/* Set up standard PCI config registers */
-	pci_write_reg(0xFB00, SH7780_PCISTATUS);
-	pci_write_reg(0x0047, SH7780_PCICMD);
-	pci_write_reg(0x00, SH7780_PCIPIF);
-	pci_write_reg(0x00, SH7780_PCISUB);
-	pci_write_reg(0x06, SH7780_PCIBCC);
-	pci_write_reg(0x1912, SH7780_PCISVID);
-	pci_write_reg(0x0001, SH7780_PCISID);
+	pci_write_reg(chan, 0xFB00, SH7780_PCISTATUS);
+	pci_write_reg(chan, 0x0047, SH7780_PCICMD);
+	pci_write_reg(chan, 0x00, SH7780_PCIPIF);
+	pci_write_reg(chan, 0x00, SH7780_PCISUB);
+	pci_write_reg(chan, 0x06, SH7780_PCIBCC);
+	pci_write_reg(chan, 0x1912, SH7780_PCISVID);
+	pci_write_reg(chan, 0x0001, SH7780_PCISID);
 
-	pci_write_reg(0x08000000, SH7780_PCIMBAR0);	/* PCI */
-	pci_write_reg(0x08000000, SH7780_PCILAR0);	/* SHwy */
-	pci_write_reg(0x07F00001, SH7780_PCILSR);	/* size 128M w/ MBAR */
+	pci_write_reg(chan, 0x08000000, SH7780_PCIMBAR0);	/* PCI */
+	pci_write_reg(chan, 0x08000000, SH7780_PCILAR0);	/* SHwy */
+	pci_write_reg(chan, 0x07F00001, SH7780_PCILSR);	/* size 128M w/ MBAR */
 
-	pci_write_reg(0x00000000, SH7780_PCIMBAR1);
-	pci_write_reg(0x00000000, SH7780_PCILAR1);
-	pci_write_reg(0x00000000, SH7780_PCILSR1);
+	pci_write_reg(chan, 0x00000000, SH7780_PCIMBAR1);
+	pci_write_reg(chan, 0x00000000, SH7780_PCILAR1);
+	pci_write_reg(chan, 0x00000000, SH7780_PCILSR1);
 
-	pci_write_reg(0xAB000801, SH7780_PCIIBAR);
+	pci_write_reg(chan, 0xAB000801, SH7780_PCIIBAR);
 
 	/*
 	 * Set the MBR so PCI address is one-to-one with window,
 	 * meaning all calls go straight through... use ifdef to
 	 * catch erroneous assumption.
 	 */
-	pci_write_reg(0xFD000000 , SH7780_PCIMBR0);
-	pci_write_reg(0x00FC0000 , SH7780_PCIMBMR0);	/* 16M */
+	pci_write_reg(chan, 0xFD000000 , SH7780_PCIMBR0);
+	pci_write_reg(chan, 0x00FC0000 , SH7780_PCIMBMR0);	/* 16M */
 
 	/* Set IOBR for window containing area specified in pci.h */
-	pci_write_reg(PCIBIOS_MIN_IO & ~(SH7780_PCI_IO_SIZE-1), SH7780_PCIIOBR);
-	pci_write_reg((SH7780_PCI_IO_SIZE-1) & (7 << 18), SH7780_PCIIOBMR);
+	pci_write_reg(chan, PCIBIOS_MIN_IO & ~(SH7780_PCI_IO_SIZE-1),
+		      SH7780_PCIIOBR);
+	pci_write_reg(chan, (SH7780_PCI_IO_SIZE-1) & (7 << 18),
+		      SH7780_PCIIOBMR);
 
-	pci_write_reg(0xA5000C01, SH7780_PCICR);
+	pci_write_reg(chan, 0xA5000C01, SH7780_PCICR);
 
 	return 0;
 }
diff --git a/arch/sh/drivers/pci/fixups-se7780.c b/arch/sh/drivers/pci/fixups-se7780.c
index 880cea1..b8e735e 100644
--- a/arch/sh/drivers/pci/fixups-se7780.c
+++ b/arch/sh/drivers/pci/fixups-se7780.c
@@ -15,13 +15,13 @@
 #include "pci-sh4.h"
 #include <asm/io.h>
 
-int pci_fixup_pcic(void)
+int pci_fixup_pcic(struct pci_channel *chan)
 {
 	ctrl_outl(0x00000001, SH7780_PCI_VCR2);
 
 	/* Enable all interrupts, so we know what to fix */
-	pci_write_reg(0x0000C3FF, SH7780_PCIIMR);
-	pci_write_reg(0x0000380F, SH7780_PCIAINTM);
+	pci_write_reg(chan, 0x0000C3FF, SH7780_PCIIMR);
+	pci_write_reg(chan, 0x0000380F, SH7780_PCIAINTM);
 
 	/* Set up standard PCI config registers */
 	ctrl_outw(0xFB00, PCI_REG(SH7780_PCISTATUS));
@@ -32,29 +32,31 @@ int pci_fixup_pcic(void)
 	ctrl_outw(0x1912, PCI_REG(SH7780_PCISVID));
 	ctrl_outw(0x0001, PCI_REG(SH7780_PCISID));
 
-	pci_write_reg(0x08000000, SH7780_PCIMBAR0);     /* PCI */
-	pci_write_reg(0x08000000, SH7780_PCILAR0);     /* SHwy */
-	pci_write_reg(0x07F00001, SH7780_PCILSR);      /* size 128M w/ MBAR */
+	pci_write_reg(chan, 0x08000000, SH7780_PCIMBAR0);     /* PCI */
+	pci_write_reg(chan, 0x08000000, SH7780_PCILAR0);     /* SHwy */
+	pci_write_reg(chan, 0x07F00001, SH7780_PCILSR); /* size 128M w/ MBAR */
 
-	pci_write_reg(0x00000000, SH7780_PCIMBAR1);
-	pci_write_reg(0x00000000, SH7780_PCILAR1);
-	pci_write_reg(0x00000000, SH7780_PCILSR1);
+	pci_write_reg(chan, 0x00000000, SH7780_PCIMBAR1);
+	pci_write_reg(chan, 0x00000000, SH7780_PCILAR1);
+	pci_write_reg(chan, 0x00000000, SH7780_PCILSR1);
 
-	pci_write_reg(0xAB000801, SH7780_PCIIBAR);
+	pci_write_reg(chan, 0xAB000801, SH7780_PCIIBAR);
 
 	/*
 	 * Set the MBR so PCI address is one-to-one with window,
 	 * meaning all calls go straight through... use ifdef to
 	 * catch erroneous assumption.
 	 */
-	pci_write_reg(0xFD000000 , SH7780_PCIMBR0);
-	pci_write_reg(0x00FC0000 , SH7780_PCIMBMR0);    /* 16M */
+	pci_write_reg(chan, 0xFD000000 , SH7780_PCIMBR0);
+	pci_write_reg(chan, 0x00FC0000 , SH7780_PCIMBMR0);    /* 16M */
 
 	/* Set IOBR for window containing area specified in pci.h */
-	pci_write_reg(PCIBIOS_MIN_IO & ~(SH7780_PCI_IO_SIZE-1), SH7780_PCIIOBR);
-	pci_write_reg((SH7780_PCI_IO_SIZE-1) & (7 << 18), SH7780_PCIIOBMR);
+	pci_write_reg(chan, PCIBIOS_MIN_IO & ~(SH7780_PCI_IO_SIZE-1),
+		      SH7780_PCIIOBR);
+	pci_write_reg(chan, (SH7780_PCI_IO_SIZE-1) & (7 << 18),
+		      SH7780_PCIIOBMR);
 
-	pci_write_reg(0xA5000C01, SH7780_PCICR);
+	pci_write_reg(chan, 0xA5000C01, SH7780_PCICR);
 
 	return 0;
 }
diff --git a/arch/sh/drivers/pci/ops-landisk.c b/arch/sh/drivers/pci/ops-landisk.c
index bff09ec..343c072 100644
--- a/arch/sh/drivers/pci/ops-landisk.c
+++ b/arch/sh/drivers/pci/ops-landisk.c
@@ -45,7 +45,7 @@ static struct sh4_pci_address_map sh7751_pci_map = {
 
 int __init pcibios_init_platform(void)
 {
-	return sh7751_pcic_init(&sh7751_pci_map);
+	return sh7751_pcic_init(&board_pci_channels[0], &sh7751_pci_map);
 }
 
 int pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
diff --git a/arch/sh/drivers/pci/ops-lboxre2.c b/arch/sh/drivers/pci/ops-lboxre2.c
index 86c0b6f..8bff32a 100644
--- a/arch/sh/drivers/pci/ops-lboxre2.c
+++ b/arch/sh/drivers/pci/ops-lboxre2.c
@@ -59,5 +59,5 @@ static struct sh4_pci_address_map sh7751_pci_map = {
 
 int __init pcibios_init_platform(void)
 {
-	return sh7751_pcic_init(&sh7751_pci_map);
+	return sh7751_pcic_init(&board_pci_channels[0], &sh7751_pci_map);
 }
diff --git a/arch/sh/drivers/pci/ops-r7780rp.c b/arch/sh/drivers/pci/ops-r7780rp.c
index 8555238..bf32ee8 100644
--- a/arch/sh/drivers/pci/ops-r7780rp.c
+++ b/arch/sh/drivers/pci/ops-r7780rp.c
@@ -64,5 +64,5 @@ static struct sh4_pci_address_map sh7780_pci_map = {
 
 int __init pcibios_init_platform(void)
 {
-	return sh7780_pcic_init(&sh7780_pci_map);
+	return sh7780_pcic_init(&board_pci_channels[0], &sh7780_pci_map);
 }
diff --git a/arch/sh/drivers/pci/ops-rts7751r2d.c b/arch/sh/drivers/pci/ops-rts7751r2d.c
index d6ca74b..e4208a6 100644
--- a/arch/sh/drivers/pci/ops-rts7751r2d.c
+++ b/arch/sh/drivers/pci/ops-rts7751r2d.c
@@ -69,6 +69,6 @@ static struct sh4_pci_address_map sh7751_pci_map = {
 int __init pcibios_init_platform(void)
 {
 	__set_io_port_base(SH7751_PCI_IO_BASE);
-	return sh7751_pcic_init(&sh7751_pci_map);
+	return sh7751_pcic_init(&board_pci_channels[0], &sh7751_pci_map);
 }
 
diff --git a/arch/sh/drivers/pci/ops-sdk7780.c b/arch/sh/drivers/pci/ops-sdk7780.c
index 4dcc641..21d59d4 100644
--- a/arch/sh/drivers/pci/ops-sdk7780.c
+++ b/arch/sh/drivers/pci/ops-sdk7780.c
@@ -69,5 +69,5 @@ static struct sh4_pci_address_map sdk7780_pci_map = {
 int __init pcibios_init_platform(void)
 {
 	printk(KERN_INFO "SH7780 PCI: Finished initializing PCI controller\n");
-	return sh7780_pcic_init(&sdk7780_pci_map);
+	return sh7780_pcic_init(&board_pci_channels[0], &sdk7780_pci_map);
 }
diff --git a/arch/sh/drivers/pci/ops-se7780.c b/arch/sh/drivers/pci/ops-se7780.c
index 3145c62..78a6f2b 100644
--- a/arch/sh/drivers/pci/ops-se7780.c
+++ b/arch/sh/drivers/pci/ops-se7780.c
@@ -92,5 +92,5 @@ int __init pcibios_init_platform(void)
 	ctrl_outw(0x0013, FPGA_PCI_INTSEL1);
 	ctrl_outw(0xE402, FPGA_PCI_INTSEL2);
 
-	return sh7780_pcic_init(&se7780_pci_map);
+	return sh7780_pcic_init(&board_pci_channels[0], &se7780_pci_map);
 }
diff --git a/arch/sh/drivers/pci/ops-sh4.c b/arch/sh/drivers/pci/ops-sh4.c
index 710a3b0..92d27f7 100644
--- a/arch/sh/drivers/pci/ops-sh4.c
+++ b/arch/sh/drivers/pci/ops-sh4.c
@@ -34,8 +34,8 @@ static int sh4_pci_read(struct pci_bus *bus, unsigned int devfn,
 	 * 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);
+	pci_write_reg(NULL, CONFIG_CMD(bus, devfn, where), SH4_PCIPAR);
+	data = pci_read_reg(NULL, SH4_PCIPDR);
 	spin_unlock_irqrestore(&sh4_pci_lock, flags);
 
 	switch (size) {
@@ -68,8 +68,8 @@ static int sh4_pci_write(struct pci_bus *bus, unsigned int devfn,
 	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);
+	pci_write_reg(NULL, CONFIG_CMD(bus, devfn, where), SH4_PCIPAR);
+	data = pci_read_reg(NULL, SH4_PCIPDR);
 	spin_unlock_irqrestore(&sh4_pci_lock, flags);
 
 	switch (size) {
@@ -90,7 +90,7 @@ 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(NULL, data, SH4_PCIPDR);
 
 	return PCIBIOS_SUCCESSFUL;
 }
@@ -106,25 +106,25 @@ struct pci_ops sh4_pci_ops = {
  */
 static unsigned int pci_probe = PCI_PROBE_CONF1;
 
-int __init sh4_pci_check_direct(void)
+int __init sh4_pci_check_direct(struct pci_channel *chan)
 {
 	/*
 	 * Check if configuration works.
 	 */
 	if (pci_probe & PCI_PROBE_CONF1) {
-		unsigned int tmp = pci_read_reg(SH4_PCIPAR);
+		unsigned int tmp = pci_read_reg(chan, SH4_PCIPAR);
 
-		pci_write_reg(P1SEG, SH4_PCIPAR);
+		pci_write_reg(chan, P1SEG, SH4_PCIPAR);
 
-		if (pci_read_reg(SH4_PCIPAR) == P1SEG) {
-			pci_write_reg(tmp, SH4_PCIPAR);
+		if (pci_read_reg(chan, SH4_PCIPAR) == P1SEG) {
+			pci_write_reg(chan, 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);
+		pci_write_reg(chan, tmp, SH4_PCIPAR);
 	}
 
 	pr_debug("PCI: pci_check_direct failed\n");
@@ -163,7 +163,7 @@ char * __devinit pcibios_setup(char *str)
 	return str;
 }
 
-int __attribute__((weak)) pci_fixup_pcic(void)
+int __attribute__((weak)) pci_fixup_pcic(struct pci_channel *chan)
 {
 	/* Nothing to do. */
 	return 0;
diff --git a/arch/sh/drivers/pci/ops-snapgear.c b/arch/sh/drivers/pci/ops-snapgear.c
index 53dd893..cba8015 100644
--- a/arch/sh/drivers/pci/ops-snapgear.c
+++ b/arch/sh/drivers/pci/ops-snapgear.c
@@ -66,7 +66,7 @@ static struct sh4_pci_address_map sh7751_pci_map = {
  */
 int __init pcibios_init_platform(void)
 {
-	return sh7751_pcic_init(&sh7751_pci_map);
+	return sh7751_pcic_init(&board_pci_channels[0], &sh7751_pci_map);
 }
 
 int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
diff --git a/arch/sh/drivers/pci/ops-titan.c b/arch/sh/drivers/pci/ops-titan.c
index a8f7801..69fcc5c 100644
--- a/arch/sh/drivers/pci/ops-titan.c
+++ b/arch/sh/drivers/pci/ops-titan.c
@@ -73,5 +73,5 @@ static struct sh4_pci_address_map sh7751_pci_map = {
 
 int __init pcibios_init_platform(void)
 {
-	return sh7751_pcic_init(&sh7751_pci_map);
+	return sh7751_pcic_init(&board_pci_channels[0], &sh7751_pci_map);
 }
diff --git a/arch/sh/drivers/pci/pci-sh4.h b/arch/sh/drivers/pci/pci-sh4.h
index a83dcf7..62ba350 100644
--- a/arch/sh/drivers/pci/pci-sh4.h
+++ b/arch/sh/drivers/pci/pci-sh4.h
@@ -154,8 +154,8 @@
 
 /* arch/sh/kernel/drivers/pci/ops-sh4.c */
 extern struct pci_ops sh4_pci_ops;
-int sh4_pci_check_direct(void);
-int pci_fixup_pcic(void);
+int sh4_pci_check_direct(struct pci_channel *chan);
+int pci_fixup_pcic(struct pci_channel *chan);
 
 struct sh4_pci_address_space {
 	unsigned long base;
@@ -168,13 +168,16 @@ struct sh4_pci_address_map {
 	unsigned long flags;
 };
 
-static inline void pci_write_reg(unsigned long val, unsigned long reg)
+static inline void pci_write_reg(struct pci_channel *chan,
+				 unsigned long val, unsigned long reg)
 {
 	ctrl_outl(val, PCI_REG(reg));
 }
 
-static inline unsigned long pci_read_reg(unsigned long reg)
+static inline unsigned long pci_read_reg(struct pci_channel *chan,
+					 unsigned long reg)
 {
 	return ctrl_inl(PCI_REG(reg));
 }
+
 #endif /* __PCI_SH4_H */
diff --git a/arch/sh/drivers/pci/pci-sh7751.c b/arch/sh/drivers/pci/pci-sh7751.c
index 3065eb184..9c2c014 100644
--- a/arch/sh/drivers/pci/pci-sh7751.c
+++ b/arch/sh/drivers/pci/pci-sh7751.c
@@ -40,21 +40,22 @@ static int __init sh7751_pci_init(void)
 	pr_debug("PCI: Starting intialization.\n");
 
 	/* check for SH7751/SH7751R hardware */
-	id = pci_read_reg(SH7751_PCICONF0);
+	id = pci_read_reg(NULL, SH7751_PCICONF0);
 	if (id != ((SH7751_DEVICE_ID << 16) | SH7751_VENDOR_ID) &&
 	    id != ((SH7751R_DEVICE_ID << 16) | SH7751_VENDOR_ID)) {
 		pr_debug("PCI: This is not an SH7751(R) (%x)\n", id);
 		return -ENODEV;
 	}
 
-	if ((ret = sh4_pci_check_direct()) != 0)
+	if ((ret = sh4_pci_check_direct(NULL)) != 0)
 		return ret;
 
 	return pcibios_init_platform();
 }
 subsys_initcall(sh7751_pci_init);
 
-static int __init __area_sdram_check(unsigned int area)
+static int __init __area_sdram_check(struct pci_channel *chan,
+				     unsigned int area)
 {
 	u32 word;
 
@@ -65,7 +66,7 @@ static int __init __area_sdram_check(unsigned int area)
 		       area, word);
 		return 0;
 	}
-	pci_write_reg(word, SH4_PCIBCR1);
+	pci_write_reg(chan, word, SH4_PCIBCR1);
 
 	word = (u16)ctrl_inw(SH7751_BCR2);
 	/* check BCR2 for 32bit SDRAM interface*/
@@ -74,12 +75,13 @@ static int __init __area_sdram_check(unsigned int area)
 		       area, word);
 		return 0;
 	}
-	pci_write_reg(word, SH4_PCIBCR2);
+	pci_write_reg(chan, word, SH4_PCIBCR2);
 
 	return 1;
 }
 
-int __init sh7751_pcic_init(struct sh4_pci_address_map *map)
+int __init sh7751_pcic_init(struct pci_channel *chan,
+			    struct sh4_pci_address_map *map)
 {
 	u32 reg;
 	u32 word;
@@ -90,10 +92,10 @@ int __init sh7751_pcic_init(struct sh4_pci_address_map *map)
 	ctrl_outl(reg, SH7751_BCR1);
 
 	/* Turn the clocks back on (not done in reset)*/
-	pci_write_reg(0, SH4_PCICLKR);
+	pci_write_reg(chan, 0, SH4_PCICLKR);
 	/* Clear Powerdown IRQ's (not done in reset) */
 	word = SH4_PCIPINT_D3 | SH4_PCIPINT_D0;
-	pci_write_reg(word, SH4_PCIPINT);
+	pci_write_reg(chan, word, SH4_PCIPINT);
 
 	/*
 	 * This code is unused for some boards as it is done in the
@@ -103,11 +105,11 @@ int __init sh7751_pcic_init(struct sh4_pci_address_map *map)
 	if (!(map->flags & SH4_PCIC_NO_RESET)) {
 		/* toggle PCI reset pin */
 		word = SH4_PCICR_PREFIX | SH4_PCICR_PRST;
-		pci_write_reg(word, SH4_PCICR);
+		pci_write_reg(chan, word, SH4_PCICR);
 		/* Wait for a long time... not 1 sec. but long enough */
 		mdelay(100);
 		word = SH4_PCICR_PREFIX;
-		pci_write_reg(word, SH4_PCICR);
+		pci_write_reg(chan, word, SH4_PCICR);
 	}
 
 	/* set the command/status bits to:
@@ -116,11 +118,11 @@ int __init sh7751_pcic_init(struct sh4_pci_address_map *map)
 	 */
 	word = SH7751_PCICONF1_WCC | SH7751_PCICONF1_PER |
 	       SH7751_PCICONF1_BUM | SH7751_PCICONF1_MES;
-	pci_write_reg(word, SH7751_PCICONF1);
+	pci_write_reg(chan, word, SH7751_PCICONF1);
 
 	/* define this host as the host bridge */
 	word = PCI_BASE_CLASS_BRIDGE << 24;
-	pci_write_reg(word, SH7751_PCICONF2);
+	pci_write_reg(chan, word, SH7751_PCICONF2);
 
 	/* Set IO and Mem windows to local address
 	 * Make PCI and local address the same for easy 1 to 1 mapping
@@ -128,24 +130,24 @@ int __init sh7751_pcic_init(struct sh4_pci_address_map *map)
 	 * Window1 = map->window1.size @ cached area base = SDRAM
 	 */
 	word = map->window0.size - 1;
-	pci_write_reg(word, SH4_PCILSR0);
+	pci_write_reg(chan, word, SH4_PCILSR0);
 	word = map->window1.size - 1;
-	pci_write_reg(word, SH4_PCILSR1);
+	pci_write_reg(chan, word, SH4_PCILSR1);
 	/* Set the values on window 0 PCI config registers */
 	word = P2SEGADDR(map->window0.base);
-	pci_write_reg(word, SH4_PCILAR0);
-	pci_write_reg(word, SH7751_PCICONF5);
+	pci_write_reg(chan, word, SH4_PCILAR0);
+	pci_write_reg(chan, word, SH7751_PCICONF5);
 	/* Set the values on window 1 PCI config registers */
 	word =  PHYSADDR(map->window1.base);
-	pci_write_reg(word, SH4_PCILAR1);
-	pci_write_reg(word, SH7751_PCICONF6);
+	pci_write_reg(chan, word, SH4_PCILAR1);
+	pci_write_reg(chan, word, SH7751_PCICONF6);
 
 	/* Set the local 16MB PCI memory space window to
 	 * the lowest PCI mapped address
 	 */
 	word = PCIBIOS_MIN_MEM & SH4_PCIMBR_MASK;
 	pr_debug("PCI: Setting upper bits of Memory window to 0x%x\n", word);
-	pci_write_reg(word , SH4_PCIMBR);
+	pci_write_reg(chan, word , SH4_PCIMBR);
 
 	/* Map IO space into PCI IO window
 	 * The IO window is 64K-PCIBIOS_MIN_IO in size
@@ -160,19 +162,19 @@ int __init sh7751_pcic_init(struct sh4_pci_address_map *map)
 	 * correctly */
 	word = PCIBIOS_MIN_IO & SH4_PCIIOBR_MASK;
 	pr_debug("PCI: Setting upper bits of IO window to 0x%x\n", word);
-	pci_write_reg(word, SH4_PCIIOBR);
+	pci_write_reg(chan, word, SH4_PCIIOBR);
 
 	/* Set PCI WCRx, BCRx's, copy from BSC locations */
 
 	/* check BCR for SDRAM in specified area */
 	switch (map->window0.base) {
-	case SH7751_CS0_BASE_ADDR: word = __area_sdram_check(0); break;
-	case SH7751_CS1_BASE_ADDR: word = __area_sdram_check(1); break;
-	case SH7751_CS2_BASE_ADDR: word = __area_sdram_check(2); break;
-	case SH7751_CS3_BASE_ADDR: word = __area_sdram_check(3); break;
-	case SH7751_CS4_BASE_ADDR: word = __area_sdram_check(4); break;
-	case SH7751_CS5_BASE_ADDR: word = __area_sdram_check(5); break;
-	case SH7751_CS6_BASE_ADDR: word = __area_sdram_check(6); break;
+	case SH7751_CS0_BASE_ADDR: word = __area_sdram_check(chan, 0); break;
+	case SH7751_CS1_BASE_ADDR: word = __area_sdram_check(chan, 1); break;
+	case SH7751_CS2_BASE_ADDR: word = __area_sdram_check(chan, 2); break;
+	case SH7751_CS3_BASE_ADDR: word = __area_sdram_check(chan, 3); break;
+	case SH7751_CS4_BASE_ADDR: word = __area_sdram_check(chan, 4); break;
+	case SH7751_CS5_BASE_ADDR: word = __area_sdram_check(chan, 5); break;
+	case SH7751_CS6_BASE_ADDR: word = __area_sdram_check(chan, 6); break;
 	}
 
 	if (!word)
@@ -180,25 +182,25 @@ int __init sh7751_pcic_init(struct sh4_pci_address_map *map)
 
 	/* configure the wait control registers */
 	word = ctrl_inl(SH7751_WCR1);
-	pci_write_reg(word, SH4_PCIWCR1);
+	pci_write_reg(chan, word, SH4_PCIWCR1);
 	word = ctrl_inl(SH7751_WCR2);
-	pci_write_reg(word, SH4_PCIWCR2);
+	pci_write_reg(chan, word, SH4_PCIWCR2);
 	word = ctrl_inl(SH7751_WCR3);
-	pci_write_reg(word, SH4_PCIWCR3);
+	pci_write_reg(chan, word, SH4_PCIWCR3);
 	word = ctrl_inl(SH7751_MCR);
-	pci_write_reg(word, SH4_PCIMCR);
+	pci_write_reg(chan, word, SH4_PCIMCR);
 
 	/* NOTE: I'm ignoring the PCI error IRQs for now..
 	 * TODO: add support for the internal error interrupts and
 	 * DMA interrupts...
 	 */
 
-	pci_fixup_pcic();
+	pci_fixup_pcic(chan);
 
 	/* SH7751 init done, set central function init complete */
 	/* use round robin mode to stop a device starving/overruning */
 	word = SH4_PCICR_PREFIX | SH4_PCICR_CFIN | SH4_PCICR_ARBM;
-	pci_write_reg(word, SH4_PCICR);
+	pci_write_reg(chan, word, SH4_PCICR);
 
 	return 1;
 }
diff --git a/arch/sh/drivers/pci/pci-sh7751.h b/arch/sh/drivers/pci/pci-sh7751.h
index 68e3cb5..6f101e5 100644
--- a/arch/sh/drivers/pci/pci-sh7751.h
+++ b/arch/sh/drivers/pci/pci-sh7751.h
@@ -130,6 +130,7 @@
 struct sh4_pci_address_map;
 
 /* arch/sh/drivers/pci/pci-sh7751.c */
-int sh7751_pcic_init(struct sh4_pci_address_map *map);
+int sh7751_pcic_init(struct pci_channel *chan,
+		     struct sh4_pci_address_map *map);
 
 #endif /* _PCI_SH7751_H_ */
diff --git a/arch/sh/drivers/pci/pci-sh7780.c b/arch/sh/drivers/pci/pci-sh7780.c
index bae6a2c..56f673f 100644
--- a/arch/sh/drivers/pci/pci-sh7780.c
+++ b/arch/sh/drivers/pci/pci-sh7780.c
@@ -55,7 +55,7 @@ static int __init sh7780_pci_init(void)
 	ctrl_outl(0x00000001, SH7780_PCI_VCR2); /* Enable PCIC */
 
 	/* check for SH7780/SH7780R hardware */
-	id = pci_read_reg(SH7780_PCIVID);
+	id = pci_read_reg(NULL, SH7780_PCIVID);
 	if ((id & 0xffff) == SH7780_VENDOR_ID) {
 		switch ((id >> 16) & 0xffff) {
 		case SH7763_DEVICE_ID:
@@ -82,14 +82,15 @@ static int __init sh7780_pci_init(void)
 		ctrl_outl(0x33333333, INTC_INTPRI);
 	}
 
-	if ((ret = sh4_pci_check_direct()) != 0)
+	if ((ret = sh4_pci_check_direct(NULL)) != 0)
 		return ret;
 
 	return pcibios_init_platform();
 }
 core_initcall(sh7780_pci_init);
 
-int __init sh7780_pcic_init(struct sh4_pci_address_map *map)
+int __init sh7780_pcic_init(struct pci_channel *chan,
+			    struct sh4_pci_address_map *map)
 {
 	u32 word;
 
@@ -101,34 +102,34 @@ int __init sh7780_pcic_init(struct sh4_pci_address_map *map)
 	if (!(map->flags & SH4_PCIC_NO_RESET)) {
 		/* toggle PCI reset pin */
 		word = SH4_PCICR_PREFIX | SH4_PCICR_PRST;
-		pci_write_reg(word, SH4_PCICR);
+		pci_write_reg(chan, word, SH4_PCICR);
 		/* Wait for a long time... not 1 sec. but long enough */
 		mdelay(100);
 		word = SH4_PCICR_PREFIX;
-		pci_write_reg(word, SH4_PCICR);
+		pci_write_reg(chan, word, SH4_PCICR);
 	}
 
 	/* set the command/status bits to:
 	 * Wait Cycle Control + Parity Enable + Bus Master +
 	 * Mem space enable
 	 */
-	pci_write_reg(0x00000046, SH7780_PCICMD);
+	pci_write_reg(chan, 0x00000046, SH7780_PCICMD);
 
 	/* define this host as the host bridge */
 	word = PCI_BASE_CLASS_BRIDGE << 24;
-	pci_write_reg(word, SH7780_PCIRID);
+	pci_write_reg(chan, word, SH7780_PCIRID);
 
 	/* Set IO and Mem windows to local address
 	 * Make PCI and local address the same for easy 1 to 1 mapping
 	 */
-	pci_write_reg(map->window0.size - 0xfffff, SH4_PCILSR0);
-	pci_write_reg(map->window1.size - 0xfffff, SH4_PCILSR1);
+	pci_write_reg(chan, map->window0.size - 0xfffff, SH4_PCILSR0);
+	pci_write_reg(chan, map->window1.size - 0xfffff, SH4_PCILSR1);
 	/* Set the values on window 0 PCI config registers */
-	pci_write_reg(map->window0.base, SH4_PCILAR0);
-	pci_write_reg(map->window0.base, SH7780_PCIMBAR0);
+	pci_write_reg(chan, map->window0.base, SH4_PCILAR0);
+	pci_write_reg(chan, map->window0.base, SH7780_PCIMBAR0);
 	/* Set the values on window 1 PCI config registers */
-	pci_write_reg(map->window1.base, SH4_PCILAR1);
-	pci_write_reg(map->window1.base, SH7780_PCIMBAR1);
+	pci_write_reg(chan, map->window1.base, SH4_PCILAR1);
+	pci_write_reg(chan, map->window1.base, SH7780_PCIMBAR1);
 
 	/* Map IO space into PCI IO window
 	 * The IO window is 64K-PCIBIOS_MIN_IO in size
@@ -145,12 +146,12 @@ int __init sh7780_pcic_init(struct sh4_pci_address_map *map)
 	 */
 
 	/* Apply any last-minute PCIC fixups */
-	pci_fixup_pcic();
+	pci_fixup_pcic(chan);
 
 	/* SH7780 init done, set central function init complete */
 	/* use round robin mode to stop a device starving/overruning */
 	word = SH4_PCICR_PREFIX | SH4_PCICR_CFIN | SH4_PCICR_FTO;
-	pci_write_reg(word, SH4_PCICR);
+	pci_write_reg(chan, word, SH4_PCICR);
 
 	return 1;
 }
diff --git a/arch/sh/drivers/pci/pci-sh7780.h b/arch/sh/drivers/pci/pci-sh7780.h
index 93adc71..d349611 100644
--- a/arch/sh/drivers/pci/pci-sh7780.h
+++ b/arch/sh/drivers/pci/pci-sh7780.h
@@ -109,6 +109,7 @@
 struct sh4_pci_address_map;
 
 /* arch/sh/drivers/pci/pci-sh7780.c */
-int sh7780_pcic_init(struct sh4_pci_address_map *map);
+int sh7780_pcic_init(struct pci_channel *chan,
+		     struct sh4_pci_address_map *map);
 
 #endif /* _PCI_SH7780_H_ */