diff options
Diffstat (limited to 'arch/sh/boards/snapgear/io.c')
| -rw-r--r-- | arch/sh/boards/snapgear/io.c | 226 |
1 files changed, 0 insertions, 226 deletions
diff --git a/arch/sh/boards/snapgear/io.c b/arch/sh/boards/snapgear/io.c deleted file mode 100644 index e2eb78fc381..00000000000 --- a/arch/sh/boards/snapgear/io.c +++ /dev/null @@ -1,226 +0,0 @@ -/* - * 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)) - - -#define maybebadio(name,port) \ - printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \ - #name, (port), (__u32) __builtin_return_address(0)) - - -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} - - -static inline volatile __u16 *port2adr(unsigned int port) -{ -#if 0 - if (port >= 0x2000) - return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000)); -#endif - maybebadio(name,(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(inw, 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(inl, 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(outw, 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(outl, port); -} - -void snapgear_insl(unsigned long port, void *addr, unsigned long count) -{ - maybebadio(insl, port); -} - -void snapgear_outsl(unsigned long port, const void *addr, unsigned long count) -{ - maybebadio(outsw, port); -} - -/* Map ISA bus address to the real address. Only for PCMCIA. */ - - -/* ISA page descriptor. */ -static __u32 sh_isa_memmap[256]; - - -#if 0 -static int sh_isa_mmap(__u32 start, __u32 length, __u32 offset) -{ - int idx; - - if (start >= 0x100000 || (start & 0xfff) || (length != 0x1000)) - return -1; - - idx = start >> 12; - sh_isa_memmap[idx] = 0xb8000000 + (offset &~ 0xfff); -#if 0 - printk("sh_isa_mmap: start %x len %x offset %x (idx %x paddr %x)\n", - start, length, offset, idx, sh_isa_memmap[idx]); -#endif - return 0; -} -#endif - -unsigned long snapgear_isa_port2addr(unsigned long offset) -{ - int idx; - - idx = (offset >> 12) & 0xff; - offset &= 0xfff; - return sh_isa_memmap[idx] + offset; -} |