diff options
Diffstat (limited to 'arch/sh/cchips/hd6446x/hd64465/io.c')
| -rw-r--r-- | arch/sh/cchips/hd6446x/hd64465/io.c | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/arch/sh/cchips/hd6446x/hd64465/io.c b/arch/sh/cchips/hd6446x/hd64465/io.c deleted file mode 100644 index 58704d066ae2..000000000000 --- a/arch/sh/cchips/hd6446x/hd64465/io.c +++ /dev/null @@ -1,211 +0,0 @@ -/* - * $Id: io.c,v 1.4 2003/08/03 03:05:10 lethal Exp $ - * by Greg Banks <gbanks@pocketpenguins.com> - * (c) 2000 PocketPenguins Inc - * - * Derived from io_hd64461.c, which bore the message: - * Copyright (C) 2000 YAEGASHI Takeshi - * - * Typical I/O routines for HD64465 system. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <asm/io.h> -#include <asm/hd64465/hd64465.h> - - -#define HD64465_DEBUG 0 - -#if HD64465_DEBUG -#define DPRINTK(args...) printk(args) -#define DIPRINTK(n, args...) if (hd64465_io_debug>(n)) printk(args) -#else -#define DPRINTK(args...) -#define DIPRINTK(n, args...) -#endif - - - -/* This is a hack suitable only for debugging IO port problems */ -int hd64465_io_debug; -EXPORT_SYMBOL(hd64465_io_debug); - -/* Low iomap maps port 0-1K to addresses in 8byte chunks */ -#define HD64465_IOMAP_LO_THRESH 0x400 -#define HD64465_IOMAP_LO_SHIFT 3 -#define HD64465_IOMAP_LO_MASK ((1<<HD64465_IOMAP_LO_SHIFT)-1) -#define HD64465_IOMAP_LO_NMAP (HD64465_IOMAP_LO_THRESH>>HD64465_IOMAP_LO_SHIFT) -static unsigned long hd64465_iomap_lo[HD64465_IOMAP_LO_NMAP]; -static unsigned char hd64465_iomap_lo_shift[HD64465_IOMAP_LO_NMAP]; - -/* High iomap maps port 1K-64K to addresses in 1K chunks */ -#define HD64465_IOMAP_HI_THRESH 0x10000 -#define HD64465_IOMAP_HI_SHIFT 10 -#define HD64465_IOMAP_HI_MASK ((1<<HD64465_IOMAP_HI_SHIFT)-1) -#define HD64465_IOMAP_HI_NMAP (HD64465_IOMAP_HI_THRESH>>HD64465_IOMAP_HI_SHIFT) -static unsigned long hd64465_iomap_hi[HD64465_IOMAP_HI_NMAP]; -static unsigned char hd64465_iomap_hi_shift[HD64465_IOMAP_HI_NMAP]; - -#define PORT2ADDR(x) (sh_mv.mv_isa_port2addr(x)) - -void hd64465_port_map(unsigned short baseport, unsigned int nports, - unsigned long addr, unsigned char shift) -{ - unsigned int port, endport = baseport + nports; - - DPRINTK("hd64465_port_map(base=0x%04hx, n=0x%04hx, addr=0x%08lx,endport=0x%04x)\n", - baseport, nports, addr,endport); - - for (port = baseport ; - port < endport && port < HD64465_IOMAP_LO_THRESH ; - port += (1<<HD64465_IOMAP_LO_SHIFT)) { - DPRINTK(" maplo[0x%x] = 0x%08lx\n", port, addr); - hd64465_iomap_lo[port>>HD64465_IOMAP_LO_SHIFT] = addr; - hd64465_iomap_lo_shift[port>>HD64465_IOMAP_LO_SHIFT] = shift; - addr += (1<<(HD64465_IOMAP_LO_SHIFT)); - } - - for (port = max_t(unsigned int, baseport, HD64465_IOMAP_LO_THRESH); - port < endport && port < HD64465_IOMAP_HI_THRESH ; - port += (1<<HD64465_IOMAP_HI_SHIFT)) { - DPRINTK(" maphi[0x%x] = 0x%08lx\n", port, addr); - hd64465_iomap_hi[port>>HD64465_IOMAP_HI_SHIFT] = addr; - hd64465_iomap_hi_shift[port>>HD64465_IOMAP_HI_SHIFT] = shift; - addr += (1<<(HD64465_IOMAP_HI_SHIFT)); - } -} -EXPORT_SYMBOL(hd64465_port_map); - -void hd64465_port_unmap(unsigned short baseport, unsigned int nports) -{ - unsigned int port, endport = baseport + nports; - - DPRINTK("hd64465_port_unmap(base=0x%04hx, n=0x%04hx)\n", - baseport, nports); - - for (port = baseport ; - port < endport && port < HD64465_IOMAP_LO_THRESH ; - port += (1<<HD64465_IOMAP_LO_SHIFT)) { - hd64465_iomap_lo[port>>HD64465_IOMAP_LO_SHIFT] = 0; - } - - for (port = max_t(unsigned int, baseport, HD64465_IOMAP_LO_THRESH); - port < endport && port < HD64465_IOMAP_HI_THRESH ; - port += (1<<HD64465_IOMAP_HI_SHIFT)) { - hd64465_iomap_hi[port>>HD64465_IOMAP_HI_SHIFT] = 0; - } -} -EXPORT_SYMBOL(hd64465_port_unmap); - -unsigned long hd64465_isa_port2addr(unsigned long port) -{ - unsigned long addr = 0; - unsigned char shift; - - /* handle remapping of low IO ports */ - if (port < HD64465_IOMAP_LO_THRESH) { - addr = hd64465_iomap_lo[port >> HD64465_IOMAP_LO_SHIFT]; - shift = hd64465_iomap_lo_shift[port >> HD64465_IOMAP_LO_SHIFT]; - if (addr != 0) - addr += (port & HD64465_IOMAP_LO_MASK) << shift; - else - printk(KERN_NOTICE "io_hd64465: access to un-mapped port %lx\n", port); - } else if (port < HD64465_IOMAP_HI_THRESH) { - addr = hd64465_iomap_hi[port >> HD64465_IOMAP_HI_SHIFT]; - shift = hd64465_iomap_hi_shift[port >> HD64465_IOMAP_HI_SHIFT]; - if (addr != 0) - addr += (port & HD64465_IOMAP_HI_MASK) << shift; - else - printk(KERN_NOTICE "io_hd64465: access to un-mapped port %lx\n", port); - } - - /* HD64465 internal devices (0xb0000000) */ - else if (port < 0x20000) - addr = CONFIG_HD64465_IOBASE + port - 0x10000; - - /* Whole physical address space (0xa0000000) */ - else - addr = P2SEGADDR(port); - - DIPRINTK(2, "PORT2ADDR(0x%08lx) = 0x%08lx\n", port, addr); - - return addr; -} - -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} - -unsigned char hd64465_inb(unsigned long port) -{ - unsigned long addr = PORT2ADDR(port); - unsigned long b = (addr == 0 ? 0 : *(volatile unsigned char*)addr); - - DIPRINTK(0, "inb(%08lx) = %02x\n", addr, (unsigned)b); - return b; -} - -unsigned char hd64465_inb_p(unsigned long port) -{ - unsigned long v; - unsigned long addr = PORT2ADDR(port); - - v = (addr == 0 ? 0 : *(volatile unsigned char*)addr); - delay(); - DIPRINTK(0, "inb_p(%08lx) = %02x\n", addr, (unsigned)v); - return v; -} - -unsigned short hd64465_inw(unsigned long port) -{ - unsigned long addr = PORT2ADDR(port); - unsigned long b = (addr == 0 ? 0 : *(volatile unsigned short*)addr); - DIPRINTK(0, "inw(%08lx) = %04lx\n", addr, b); - return b; -} - -unsigned int hd64465_inl(unsigned long port) -{ - unsigned long addr = PORT2ADDR(port); - unsigned int b = (addr == 0 ? 0 : *(volatile unsigned long*)addr); - DIPRINTK(0, "inl(%08lx) = %08x\n", addr, b); - return b; -} - -void hd64465_outb(unsigned char b, unsigned long port) -{ - unsigned long addr = PORT2ADDR(port); - - DIPRINTK(0, "outb(%02x, %08lx)\n", (unsigned)b, addr); - if (addr != 0) - *(volatile unsigned char*)addr = b; -} - -void hd64465_outb_p(unsigned char b, unsigned long port) -{ - unsigned long addr = PORT2ADDR(port); - - DIPRINTK(0, "outb_p(%02x, %08lx)\n", (unsigned)b, addr); - if (addr != 0) - *(volatile unsigned char*)addr = b; - delay(); -} - -void hd64465_outw(unsigned short b, unsigned long port) -{ - unsigned long addr = PORT2ADDR(port); - DIPRINTK(0, "outw(%04x, %08lx)\n", (unsigned)b, addr); - if (addr != 0) - *(volatile unsigned short*)addr = b; -} - -void hd64465_outl(unsigned int b, unsigned long port) -{ - unsigned long addr = PORT2ADDR(port); - DIPRINTK(0, "outl(%08x, %08lx)\n", b, addr); - if (addr != 0) - *(volatile unsigned long*)addr = b; -} - |