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sh: Consolidated SH7751/SH7780 PCI support.

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This cleans up quite a lot of the PCI mess that we
currently have, and attempts to consolidate the
duplication in the SH7780 and SH7751 PCI controllers.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
2006-09-27 16:43:28 +09:00
parent e108b2ca23
commit 959f85f8a3
37 changed files with 985 additions and 1521 deletions
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65
arch/sh/boards/titan/io.c
View File

@@ -1,34 +1,11 @@
/*
* I/O routines for Titan
*/
#include <linux/pci.h>
#include <asm/machvec.h>
#include <asm/addrspace.h>
#include <asm/titan.h>
#include <asm/io.h>
#include "../../drivers/pci/pci-sh7751.h"
#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR)
#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR)
#define PCI_IO_AREA SH7751_PCI_IO_BASE
#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE
#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK))
#if defined(CONFIG_PCI)
#define CHECK_SH7751_PCIIO(port) \
((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE)))
#define CHECK_SH7751_PCIMEMIO(port) \
((port >= PCIBIOS_MIN_MEM) && (port < (PCIBIOS_MIN_MEM + SH7751_PCI_MEM_SIZE)))
#else
#define CHECK_SH7751_PCIIO(port) (0)
#endif
static inline void delay(void)
{
ctrl_inw(0xa0000000);
}
static inline unsigned int port2adr(unsigned int port)
{
@@ -40,8 +17,8 @@ u8 titan_inb(unsigned long port)
{
if (PXSEG(port))
return ctrl_inb(port);
else if (CHECK_SH7751_PCIIO(port))
return ctrl_inb(PCI_IOMAP(port));
else if (is_pci_ioaddr(port))
return ctrl_inb(pci_ioaddr(port));
return ctrl_inw(port2adr(port)) & 0xff;
}
@@ -51,11 +28,11 @@ u8 titan_inb_p(unsigned long port)
if (PXSEG(port))
v = ctrl_inb(port);
else if (CHECK_SH7751_PCIIO(port))
v = ctrl_inb(PCI_IOMAP(port));
else if (is_pci_ioaddr(port))
v = ctrl_inb(pci_ioaddr(port));
else
v = ctrl_inw(port2adr(port)) & 0xff;
delay();
ctrl_delay();
return v;
}
@@ -63,8 +40,8 @@ u16 titan_inw(unsigned long port)
{
if (PXSEG(port))
return ctrl_inw(port);
else if (CHECK_SH7751_PCIIO(port))
return ctrl_inw(PCI_IOMAP(port));
else if (is_pci_ioaddr(port))
return ctrl_inw(pci_ioaddr(port));
else if (port >= 0x2000)
return ctrl_inw(port2adr(port));
else
@@ -76,8 +53,8 @@ u32 titan_inl(unsigned long port)
{
if (PXSEG(port))
return ctrl_inl(port);
else if (CHECK_SH7751_PCIIO(port))
return ctrl_inl(PCI_IOMAP(port));
else if (is_pci_ioaddr(port))
return ctrl_inl(pci_ioaddr(port));
else if (port >= 0x2000)
return ctrl_inw(port2adr(port));
else
@@ -89,8 +66,8 @@ void titan_outb(u8 value, unsigned long port)
{
if (PXSEG(port))
ctrl_outb(value, port);
else if (CHECK_SH7751_PCIIO(port))
ctrl_outb(value, PCI_IOMAP(port));
else if (is_pci_ioaddr(port))
ctrl_outb(value, pci_ioaddr(port));
else
ctrl_outw(value, port2adr(port));
}
@@ -99,19 +76,19 @@ void titan_outb_p(u8 value, unsigned long port)
{
if (PXSEG(port))
ctrl_outb(value, port);
else if (CHECK_SH7751_PCIIO(port))
ctrl_outb(value, PCI_IOMAP(port));
else if (is_pci_ioaddr(port))
ctrl_outb(value, pci_ioaddr(port));
else
ctrl_outw(value, port2adr(port));
delay();
ctrl_delay();
}
void titan_outw(u16 value, unsigned long port)
{
if (PXSEG(port))
ctrl_outw(value, port);
else if (CHECK_SH7751_PCIIO(port))
ctrl_outw(value, PCI_IOMAP(port));
else if (is_pci_ioaddr(port))
ctrl_outw(value, pci_ioaddr(port));
else if (port >= 0x2000)
ctrl_outw(value, port2adr(port));
else
@@ -122,8 +99,8 @@ void titan_outl(u32 value, unsigned long port)
{
if (PXSEG(port))
ctrl_outl(value, port);
else if (CHECK_SH7751_PCIIO(port))
ctrl_outl(value, PCI_IOMAP(port));
else if (is_pci_ioaddr(port))
ctrl_outl(value, pci_ioaddr(port));
else
maybebadio(port);
}
@@ -140,10 +117,10 @@ void titan_outsl(unsigned long port, const void *src, unsigned long count)
void __iomem *titan_ioport_map(unsigned long port, unsigned int size)
{
if (PXSEG(port) || CHECK_SH7751_PCIMEMIO(port))
if (PXSEG(port) || is_pci_memaddr(port))
return (void __iomem *)port;
else if (CHECK_SH7751_PCIIO(port))
return (void __iomem *)PCI_IOMAP(port);
else if (is_pci_ioaddr(port))
return (void __iomem *)pci_ioaddr(port);
return (void __iomem *)port2adr(port);
}