-/*
- * linux/arch/sh/boards/renesas/systemh/io.c
- *
- * Copyright (C) 2001 Ian da Silva, Jeremy Siegel
- * Based largely on io_se.c.
- *
- * I/O routine for Hitachi 7751 Systemh.
- */
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <mach/systemh7751.h>
-#include <asm/addrspace.h>
-#include <asm/io.h>
-
-#define ETHER_IOMAP(adr) (0xB3000000 + (adr)) /*map to 16bits access area
- of smc lan chip*/
-static inline volatile __u16 *
-port2adr(unsigned int port)
-{
- if (port >= 0x2000)
- return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000));
- maybebadio((unsigned long)port);
- return (volatile __u16*)port;
-}
-
-/*
- * General outline: remap really low stuff [eventually] to SuperIO,
- * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO)
- * is mapped through the PCI IO window. Stuff with high bits (PXSEG)
- * should be way beyond the window, and is used w/o translation for
- * compatibility.
- */
-unsigned char sh7751systemh_inb(unsigned long port)
-{
- if (PXSEG(port))
- return *(volatile unsigned char *)port;
- else if (port <= 0x3F1)
- return *(volatile unsigned char *)ETHER_IOMAP(port);
- else
- return (*port2adr(port))&0xff;
-}
-
-unsigned char sh7751systemh_inb_p(unsigned long port)
-{
- unsigned char v;
-
- if (PXSEG(port))
- v = *(volatile unsigned char *)port;
- else if (port <= 0x3F1)
- v = *(volatile unsigned char *)ETHER_IOMAP(port);
- else
- v = (*port2adr(port))&0xff;
- ctrl_delay();
- return v;
-}
-
-unsigned short sh7751systemh_inw(unsigned long port)
-{
- if (PXSEG(port))
- return *(volatile unsigned short *)port;
- else if (port >= 0x2000)
- return *port2adr(port);
- else if (port <= 0x3F1)
- return *(volatile unsigned int *)ETHER_IOMAP(port);
- else
- maybebadio(port);
- return 0;
-}
-
-unsigned int sh7751systemh_inl(unsigned long port)
-{
- if (PXSEG(port))
- return *(volatile unsigned long *)port;
- else if (port >= 0x2000)
- return *port2adr(port);
- else if (port <= 0x3F1)
- return *(volatile unsigned int *)ETHER_IOMAP(port);
- else
- maybebadio(port);
- return 0;
-}
-
-void sh7751systemh_outb(unsigned char value, unsigned long port)
-{
-
- if (PXSEG(port))
- *(volatile unsigned char *)port = value;
- else if (port <= 0x3F1)
- *(volatile unsigned char *)ETHER_IOMAP(port) = value;
- else
- *(port2adr(port)) = value;
-}
-
-void sh7751systemh_outb_p(unsigned char value, unsigned long port)
-{
- if (PXSEG(port))
- *(volatile unsigned char *)port = value;
- else if (port <= 0x3F1)
- *(volatile unsigned char *)ETHER_IOMAP(port) = value;
- else
- *(port2adr(port)) = value;
- ctrl_delay();
-}
-
-void sh7751systemh_outw(unsigned short value, unsigned long port)
-{
- if (PXSEG(port))
- *(volatile unsigned short *)port = value;
- else if (port >= 0x2000)
- *port2adr(port) = value;
- else if (port <= 0x3F1)
- *(volatile unsigned short *)ETHER_IOMAP(port) = value;
- else
- maybebadio(port);
-}
-
-void sh7751systemh_outl(unsigned int value, unsigned long port)
-{
- if (PXSEG(port))
- *(volatile unsigned long *)port = value;
- else
- maybebadio(port);
-}
-
-void sh7751systemh_insb(unsigned long port, void *addr, unsigned long count)
-{
- unsigned char *p = addr;
- while (count--) *p++ = sh7751systemh_inb(port);
-}
-
-void sh7751systemh_insw(unsigned long port, void *addr, unsigned long count)
-{
- unsigned short *p = addr;
- while (count--) *p++ = sh7751systemh_inw(port);
-}
-
-void sh7751systemh_insl(unsigned long port, void *addr, unsigned long count)
-{
- maybebadio(port);
-}
-
-void sh7751systemh_outsb(unsigned long port, const void *addr, unsigned long count)
-{
- unsigned char *p = (unsigned char*)addr;
- while (count--) sh7751systemh_outb(*p++, port);
-}
-
-void sh7751systemh_outsw(unsigned long port, const void *addr, unsigned long count)
-{
- unsigned short *p = (unsigned short*)addr;
- while (count--) sh7751systemh_outw(*p++, port);
-}
-
-void sh7751systemh_outsl(unsigned long port, const void *addr, unsigned long count)
-{
- maybebadio(port);
-}
git.openpandora.org / pandora-kernel.git / commitdiff