mirror of
https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
synced 2024-10-20 18:39:12 +00:00
373e68b547
This updates the various boards for some of the recent I/O routine updates. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
179 lines
4.1 KiB
C
179 lines
4.1 KiB
C
/*
|
|
* linux/arch/sh/kernel/io_7751se.c
|
|
*
|
|
* Copyright (C) 2002 David McCullough <davidm@snapgear.com>
|
|
* Copyright (C) 2001 Ian da Silva, Jeremy Siegel
|
|
* Based largely on io_se.c.
|
|
*
|
|
* I/O routine for Hitachi 7751 SolutionEngine.
|
|
*
|
|
* Initial version only to support LAN access; some
|
|
* placeholder code from io_se.c left in with the
|
|
* expectation of later SuperIO and PCMCIA access.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/types.h>
|
|
#include <linux/pci.h>
|
|
#include <asm/io.h>
|
|
#include <asm/addrspace.h>
|
|
|
|
#include <asm/pci.h>
|
|
#include "../../drivers/pci/pci-sh7751.h"
|
|
|
|
#ifdef CONFIG_SH_SECUREEDGE5410
|
|
unsigned short secureedge5410_ioport;
|
|
#endif
|
|
|
|
/*
|
|
* The SnapGear uses the built-in PCI controller (PCIC)
|
|
* of the 7751 processor
|
|
*/
|
|
|
|
#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))
|
|
|
|
static inline void delay(void)
|
|
{
|
|
ctrl_inw(0xa0000000);
|
|
}
|
|
|
|
static inline volatile __u16 *port2adr(unsigned int port)
|
|
{
|
|
maybebadio((unsigned long)port);
|
|
return (volatile __u16*)port;
|
|
}
|
|
|
|
/* In case someone configures the kernel w/o PCI support: in that */
|
|
/* scenario, don't ever bother to check for PCI-window addresses */
|
|
|
|
/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */
|
|
#if defined(CONFIG_PCI)
|
|
#define CHECK_SH7751_PCIIO(port) \
|
|
((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE)))
|
|
#else
|
|
#define CHECK_SH7751_PCIIO(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 snapgear_inb(unsigned long port)
|
|
{
|
|
if (PXSEG(port))
|
|
return *(volatile unsigned char *)port;
|
|
else if (CHECK_SH7751_PCIIO(port))
|
|
return *(volatile unsigned char *)PCI_IOMAP(port);
|
|
else
|
|
return (*port2adr(port))&0xff;
|
|
}
|
|
|
|
|
|
unsigned char snapgear_inb_p(unsigned long port)
|
|
{
|
|
unsigned char v;
|
|
|
|
if (PXSEG(port))
|
|
v = *(volatile unsigned char *)port;
|
|
else if (CHECK_SH7751_PCIIO(port))
|
|
v = *(volatile unsigned char *)PCI_IOMAP(port);
|
|
else
|
|
v = (*port2adr(port))&0xff;
|
|
delay();
|
|
return v;
|
|
}
|
|
|
|
|
|
unsigned short snapgear_inw(unsigned long port)
|
|
{
|
|
if (PXSEG(port))
|
|
return *(volatile unsigned short *)port;
|
|
else if (CHECK_SH7751_PCIIO(port))
|
|
return *(volatile unsigned short *)PCI_IOMAP(port);
|
|
else if (port >= 0x2000)
|
|
return *port2adr(port);
|
|
else
|
|
maybebadio(port);
|
|
return 0;
|
|
}
|
|
|
|
|
|
unsigned int snapgear_inl(unsigned long port)
|
|
{
|
|
if (PXSEG(port))
|
|
return *(volatile unsigned long *)port;
|
|
else if (CHECK_SH7751_PCIIO(port))
|
|
return *(volatile unsigned int *)PCI_IOMAP(port);
|
|
else if (port >= 0x2000)
|
|
return *port2adr(port);
|
|
else
|
|
maybebadio(port);
|
|
return 0;
|
|
}
|
|
|
|
|
|
void snapgear_outb(unsigned char value, unsigned long port)
|
|
{
|
|
|
|
if (PXSEG(port))
|
|
*(volatile unsigned char *)port = value;
|
|
else if (CHECK_SH7751_PCIIO(port))
|
|
*((unsigned char*)PCI_IOMAP(port)) = value;
|
|
else
|
|
*(port2adr(port)) = value;
|
|
}
|
|
|
|
|
|
void snapgear_outb_p(unsigned char value, unsigned long port)
|
|
{
|
|
if (PXSEG(port))
|
|
*(volatile unsigned char *)port = value;
|
|
else if (CHECK_SH7751_PCIIO(port))
|
|
*((unsigned char*)PCI_IOMAP(port)) = value;
|
|
else
|
|
*(port2adr(port)) = value;
|
|
delay();
|
|
}
|
|
|
|
|
|
void snapgear_outw(unsigned short value, unsigned long port)
|
|
{
|
|
if (PXSEG(port))
|
|
*(volatile unsigned short *)port = value;
|
|
else if (CHECK_SH7751_PCIIO(port))
|
|
*((unsigned short *)PCI_IOMAP(port)) = value;
|
|
else if (port >= 0x2000)
|
|
*port2adr(port) = value;
|
|
else
|
|
maybebadio(port);
|
|
}
|
|
|
|
|
|
void snapgear_outl(unsigned int value, unsigned long port)
|
|
{
|
|
if (PXSEG(port))
|
|
*(volatile unsigned long *)port = value;
|
|
else if (CHECK_SH7751_PCIIO(port))
|
|
*((unsigned long*)PCI_IOMAP(port)) = value;
|
|
else
|
|
maybebadio(port);
|
|
}
|
|
|
|
void snapgear_insl(unsigned long port, void *addr, unsigned long count)
|
|
{
|
|
maybebadio(port);
|
|
}
|
|
|
|
void snapgear_outsl(unsigned long port, const void *addr, unsigned long count)
|
|
{
|
|
maybebadio(port);
|
|
}
|