284 lines
6.9 KiB
C
284 lines
6.9 KiB
C
/*
|
|
* linux/arch/sh/boards/renesas/hs7751rvoip/io.c
|
|
*
|
|
* Copyright (C) 2001 Ian da Silva, Jeremy Siegel
|
|
* Based largely on io_se.c.
|
|
*
|
|
* I/O routine for Renesas Technology sales HS7751RVoIP
|
|
*
|
|
* Initial version only to support LAN access; some
|
|
* placeholder code from io_hs7751rvoip.c left in with the
|
|
* expectation of later SuperIO and PCMCIA access.
|
|
*/
|
|
#include <linux/kernel.h>
|
|
#include <linux/types.h>
|
|
#include <linux/module.h>
|
|
#include <linux/pci.h>
|
|
#include <asm/io.h>
|
|
#include <asm/hs7751rvoip.h>
|
|
#include <asm/addrspace.h>
|
|
|
|
extern void *area6_io8_base; /* Area 6 8bit I/O Base address */
|
|
extern void *area5_io16_base; /* Area 5 16bit I/O Base address */
|
|
|
|
/*
|
|
* The 7751R HS7751RVoIP uses the built-in PCI controller (PCIC)
|
|
* of the 7751R processor, and has a SuperIO accessible via the PCI.
|
|
* The board also includes a PCMCIA controller on its memory bus,
|
|
* like the other Solution Engine boards.
|
|
*/
|
|
|
|
#define CODEC_IO_BASE 0x1000
|
|
#define CODEC_IOMAP(a) ((unsigned long)area6_io8_base + ((a) - CODEC_IO_BASE))
|
|
|
|
static inline unsigned long port2adr(unsigned int port)
|
|
{
|
|
if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6)
|
|
if (port == 0x3f6)
|
|
return ((unsigned long)area5_io16_base + 0x0c);
|
|
else
|
|
return ((unsigned long)area5_io16_base + 0x800 +
|
|
((port-0x1f0) << 1));
|
|
else
|
|
maybebadio((unsigned long)port);
|
|
return port;
|
|
}
|
|
|
|
/* The 7751R HS7751RVoIP seems to have everything hooked */
|
|
/* up pretty normally (nothing on high-bytes only...) so this */
|
|
/* shouldn't be needed */
|
|
static inline int shifted_port(unsigned long port)
|
|
{
|
|
/* For IDE registers, value is not shifted */
|
|
if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6)
|
|
return 0;
|
|
else
|
|
return 1;
|
|
}
|
|
|
|
#if defined(CONFIG_HS7751RVOIP_CODEC)
|
|
#define codec_port(port) \
|
|
((CODEC_IO_BASE <= (port)) && ((port) < (CODEC_IO_BASE + 0x20)))
|
|
#else
|
|
#define codec_port(port) (0)
|
|
#endif
|
|
|
|
/*
|
|
* 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 hs7751rvoip_inb(unsigned long port)
|
|
{
|
|
if (PXSEG(port))
|
|
return ctrl_inb(port);
|
|
else if (codec_port(port))
|
|
return ctrl_inb(CODEC_IOMAP(port));
|
|
else if (is_pci_ioaddr(port) || shifted_port(port))
|
|
return ctrl_inb(pci_ioaddr(port));
|
|
else
|
|
return ctrl_inw(port2adr(port)) & 0xff;
|
|
}
|
|
|
|
unsigned char hs7751rvoip_inb_p(unsigned long port)
|
|
{
|
|
unsigned char v;
|
|
|
|
if (PXSEG(port))
|
|
v = ctrl_inb(port);
|
|
else if (codec_port(port))
|
|
v = ctrl_inb(CODEC_IOMAP(port));
|
|
else if (is_pci_ioaddr(port) || shifted_port(port))
|
|
v = ctrl_inb(pci_ioaddr(port));
|
|
else
|
|
v = ctrl_inw(port2adr(port)) & 0xff;
|
|
ctrl_delay();
|
|
return v;
|
|
}
|
|
|
|
unsigned short hs7751rvoip_inw(unsigned long port)
|
|
{
|
|
if (PXSEG(port))
|
|
return ctrl_inw(port);
|
|
else if (is_pci_ioaddr(port) || shifted_port(port))
|
|
return ctrl_inw(pci_ioaddr(port));
|
|
else
|
|
maybebadio(port);
|
|
return 0;
|
|
}
|
|
|
|
unsigned int hs7751rvoip_inl(unsigned long port)
|
|
{
|
|
if (PXSEG(port))
|
|
return ctrl_inl(port);
|
|
else if (is_pci_ioaddr(port) || shifted_port(port))
|
|
return ctrl_inl(pci_ioaddr(port));
|
|
else
|
|
maybebadio(port);
|
|
return 0;
|
|
}
|
|
|
|
void hs7751rvoip_outb(unsigned char value, unsigned long port)
|
|
{
|
|
|
|
if (PXSEG(port))
|
|
ctrl_outb(value, port);
|
|
else if (codec_port(port))
|
|
ctrl_outb(value, CODEC_IOMAP(port));
|
|
else if (is_pci_ioaddr(port) || shifted_port(port))
|
|
ctrl_outb(value, pci_ioaddr(port));
|
|
else
|
|
ctrl_outb(value, port2adr(port));
|
|
}
|
|
|
|
void hs7751rvoip_outb_p(unsigned char value, unsigned long port)
|
|
{
|
|
if (PXSEG(port))
|
|
ctrl_outb(value, port);
|
|
else if (codec_port(port))
|
|
ctrl_outb(value, CODEC_IOMAP(port));
|
|
else if (is_pci_ioaddr(port) || shifted_port(port))
|
|
ctrl_outb(value, pci_ioaddr(port));
|
|
else
|
|
ctrl_outw(value, port2adr(port));
|
|
|
|
ctrl_delay();
|
|
}
|
|
|
|
void hs7751rvoip_outw(unsigned short value, unsigned long port)
|
|
{
|
|
if (PXSEG(port))
|
|
ctrl_outw(value, port);
|
|
else if (is_pci_ioaddr(port) || shifted_port(port))
|
|
ctrl_outw(value, pci_ioaddr(port));
|
|
else
|
|
maybebadio(port);
|
|
}
|
|
|
|
void hs7751rvoip_outl(unsigned int value, unsigned long port)
|
|
{
|
|
if (PXSEG(port))
|
|
ctrl_outl(value, port);
|
|
else if (is_pci_ioaddr(port) || shifted_port(port))
|
|
ctrl_outl(value, pci_ioaddr(port));
|
|
else
|
|
maybebadio(port);
|
|
}
|
|
|
|
void hs7751rvoip_insb(unsigned long port, void *addr, unsigned long count)
|
|
{
|
|
u8 *buf = addr;
|
|
|
|
if (PXSEG(port))
|
|
while (count--)
|
|
*buf++ = ctrl_inb(port);
|
|
else if (codec_port(port))
|
|
while (count--)
|
|
*buf++ = ctrl_inb(CODEC_IOMAP(port));
|
|
else if (is_pci_ioaddr(port) || shifted_port(port)) {
|
|
volatile u8 *bp = (volatile u8 *)pci_ioaddr(port);
|
|
|
|
while (count--)
|
|
*buf++ = *bp;
|
|
} else {
|
|
volatile u16 *p = (volatile u16 *)port2adr(port);
|
|
|
|
while (count--)
|
|
*buf++ = *p & 0xff;
|
|
}
|
|
}
|
|
|
|
void hs7751rvoip_insw(unsigned long port, void *addr, unsigned long count)
|
|
{
|
|
volatile u16 *p;
|
|
u16 *buf = addr;
|
|
|
|
if (PXSEG(port))
|
|
p = (volatile u16 *)port;
|
|
else if (is_pci_ioaddr(port) || shifted_port(port))
|
|
p = (volatile u16 *)pci_ioaddr(port);
|
|
else
|
|
p = (volatile u16 *)port2adr(port);
|
|
while (count--)
|
|
*buf++ = *p;
|
|
}
|
|
|
|
void hs7751rvoip_insl(unsigned long port, void *addr, unsigned long count)
|
|
{
|
|
|
|
if (is_pci_ioaddr(port) || shifted_port(port)) {
|
|
volatile u32 *p = (volatile u32 *)pci_ioaddr(port);
|
|
u32 *buf = addr;
|
|
|
|
while (count--)
|
|
*buf++ = *p;
|
|
} else
|
|
maybebadio(port);
|
|
}
|
|
|
|
void hs7751rvoip_outsb(unsigned long port, const void *addr, unsigned long count)
|
|
{
|
|
const u8 *buf = addr;
|
|
|
|
if (PXSEG(port))
|
|
while (count--)
|
|
ctrl_outb(*buf++, port);
|
|
else if (codec_port(port))
|
|
while (count--)
|
|
ctrl_outb(*buf++, CODEC_IOMAP(port));
|
|
else if (is_pci_ioaddr(port) || shifted_port(port)) {
|
|
volatile u8 *bp = (volatile u8 *)pci_ioaddr(port);
|
|
|
|
while (count--)
|
|
*bp = *buf++;
|
|
} else {
|
|
volatile u16 *p = (volatile u16 *)port2adr(port);
|
|
|
|
while (count--)
|
|
*p = *buf++;
|
|
}
|
|
}
|
|
|
|
void hs7751rvoip_outsw(unsigned long port, const void *addr, unsigned long count)
|
|
{
|
|
volatile u16 *p;
|
|
const u16 *buf = addr;
|
|
|
|
if (PXSEG(port))
|
|
p = (volatile u16 *)port;
|
|
else if (is_pci_ioaddr(port) || shifted_port(port))
|
|
p = (volatile u16 *)pci_ioaddr(port);
|
|
else
|
|
p = (volatile u16 *)port2adr(port);
|
|
|
|
while (count--)
|
|
*p = *buf++;
|
|
}
|
|
|
|
void hs7751rvoip_outsl(unsigned long port, const void *addr, unsigned long count)
|
|
{
|
|
const u32 *buf = addr;
|
|
|
|
if (is_pci_ioaddr(port) || shifted_port(port)) {
|
|
volatile u32 *p = (volatile u32 *)pci_ioaddr(port);
|
|
|
|
while (count--)
|
|
*p = *buf++;
|
|
} else
|
|
maybebadio(port);
|
|
}
|
|
|
|
void __iomem *hs7751rvoip_ioport_map(unsigned long port, unsigned int size)
|
|
{
|
|
if (PXSEG(port))
|
|
return (void __iomem *)port;
|
|
else if (unlikely(codec_port(port) && (size == 1)))
|
|
return (void __iomem *)CODEC_IOMAP(port);
|
|
else if (is_pci_ioaddr(port))
|
|
return (void __iomem *)pci_ioaddr(port);
|
|
|
|
return (void __iomem *)port2adr(port);
|
|
}
|