diff options
author | Paul Mundt <lethal@linux-sh.org> | 2008-07-29 21:01:19 +0900 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2008-07-29 21:01:19 +0900 |
commit | da2014a2b080e7f3024a4eb6917d47069ad9620b (patch) | |
tree | cfde12c6d4b5baa222966b14a676f107992cf786 /arch/sh/boards/mach-se/7343/io.c | |
parent | 71b8064e7df5698520d73b4c1566a3dbc98eb9ef (diff) |
sh: Shuffle the board directories in to mach groups.
This flattens out the board directories in to individual mach groups,
we will use this for getting rid of unneeded directories, simplifying
the build system, and becoming more coherent with the refactored
arch/sh/include topology.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/boards/mach-se/7343/io.c')
-rw-r--r-- | arch/sh/boards/mach-se/7343/io.c | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/arch/sh/boards/mach-se/7343/io.c b/arch/sh/boards/mach-se/7343/io.c new file mode 100644 index 000000000000..e2fae32d27d7 --- /dev/null +++ b/arch/sh/boards/mach-se/7343/io.c @@ -0,0 +1,273 @@ +/* + * arch/sh/boards/se/7343/io.c + * + * I/O routine for SH-Mobile3AS 7343 SolutionEngine. + * + */ +#include <linux/kernel.h> +#include <asm/io.h> +#include <mach/se7343.h> + +#define badio(fn, a) panic("bad i/o operation %s for %08lx.", #fn, a) + +struct iop { + unsigned long start, end; + unsigned long base; + struct iop *(*check) (struct iop * p, unsigned long port); + unsigned char (*inb) (struct iop * p, unsigned long port); + unsigned short (*inw) (struct iop * p, unsigned long port); + void (*outb) (struct iop * p, unsigned char value, unsigned long port); + void (*outw) (struct iop * p, unsigned short value, unsigned long port); +}; + +struct iop * +simple_check(struct iop *p, unsigned long port) +{ + static int count; + + if (count < 100) + count++; + + port &= 0xFFFF; + + if ((p->start <= port) && (port <= p->end)) + return p; + else + badio(check, port); +} + +struct iop * +ide_check(struct iop *p, unsigned long port) +{ + if (((0x1f0 <= port) && (port <= 0x1f7)) || (port == 0x3f7)) + return p; + return NULL; +} + +unsigned char +simple_inb(struct iop *p, unsigned long port) +{ + return *(unsigned char *) (p->base + port); +} + +unsigned short +simple_inw(struct iop *p, unsigned long port) +{ + return *(unsigned short *) (p->base + port); +} + +void +simple_outb(struct iop *p, unsigned char value, unsigned long port) +{ + *(unsigned char *) (p->base + port) = value; +} + +void +simple_outw(struct iop *p, unsigned short value, unsigned long port) +{ + *(unsigned short *) (p->base + port) = value; +} + +unsigned char +pcc_inb(struct iop *p, unsigned long port) +{ + unsigned long addr = p->base + port + 0x40000; + unsigned long v; + + if (port & 1) + addr += 0x00400000; + v = *(volatile unsigned char *) addr; + return v; +} + +void +pcc_outb(struct iop *p, unsigned char value, unsigned long port) +{ + unsigned long addr = p->base + port + 0x40000; + + if (port & 1) + addr += 0x00400000; + *(volatile unsigned char *) addr = value; +} + +unsigned char +bad_inb(struct iop *p, unsigned long port) +{ + badio(inb, port); +} + +void +bad_outb(struct iop *p, unsigned char value, unsigned long port) +{ + badio(inw, port); +} + +#ifdef CONFIG_SMC91X +/* MSTLANEX01 LAN at 0xb400:0000 */ +static struct iop laniop = { + .start = 0x00, + .end = 0x0F, + .base = 0x04000000, + .check = simple_check, + .inb = simple_inb, + .inw = simple_inw, + .outb = simple_outb, + .outw = simple_outw, +}; +#endif + +#ifdef CONFIG_NE2000 +/* NE2000 pc card NIC */ +static struct iop neiop = { + .start = 0x280, + .end = 0x29f, + .base = 0xb0600000 + 0x80, /* soft 0x280 -> hard 0x300 */ + .check = simple_check, + .inb = pcc_inb, + .inw = simple_inw, + .outb = pcc_outb, + .outw = simple_outw, +}; +#endif + +#ifdef CONFIG_IDE +/* CF in CF slot */ +static struct iop cfiop = { + .base = 0xb0600000, + .check = ide_check, + .inb = pcc_inb, + .inw = simple_inw, + .outb = pcc_outb, + .outw = simple_outw, +}; +#endif + +static __inline__ struct iop * +port2iop(unsigned long port) +{ + if (0) ; +#if defined(CONFIG_SMC91X) + else if (laniop.check(&laniop, port)) + return &laniop; +#endif +#if defined(CONFIG_NE2000) + else if (neiop.check(&neiop, port)) + return &neiop; +#endif +#if defined(CONFIG_IDE) + else if (cfiop.check(&cfiop, port)) + return &cfiop; +#endif + else + return NULL; +} + +static inline void +delay(void) +{ + ctrl_inw(0xac000000); + ctrl_inw(0xac000000); +} + +unsigned char +sh7343se_inb(unsigned long port) +{ + struct iop *p = port2iop(port); + return (p->inb) (p, port); +} + +unsigned char +sh7343se_inb_p(unsigned long port) +{ + unsigned char v = sh7343se_inb(port); + delay(); + return v; +} + +unsigned short +sh7343se_inw(unsigned long port) +{ + struct iop *p = port2iop(port); + return (p->inw) (p, port); +} + +unsigned int +sh7343se_inl(unsigned long port) +{ + badio(inl, port); +} + +void +sh7343se_outb(unsigned char value, unsigned long port) +{ + struct iop *p = port2iop(port); + (p->outb) (p, value, port); +} + +void +sh7343se_outb_p(unsigned char value, unsigned long port) +{ + sh7343se_outb(value, port); + delay(); +} + +void +sh7343se_outw(unsigned short value, unsigned long port) +{ + struct iop *p = port2iop(port); + (p->outw) (p, value, port); +} + +void +sh7343se_outl(unsigned int value, unsigned long port) +{ + badio(outl, port); +} + +void +sh7343se_insb(unsigned long port, void *addr, unsigned long count) +{ + unsigned char *a = addr; + struct iop *p = port2iop(port); + while (count--) + *a++ = (p->inb) (p, port); +} + +void +sh7343se_insw(unsigned long port, void *addr, unsigned long count) +{ + unsigned short *a = addr; + struct iop *p = port2iop(port); + while (count--) + *a++ = (p->inw) (p, port); +} + +void +sh7343se_insl(unsigned long port, void *addr, unsigned long count) +{ + badio(insl, port); +} + +void +sh7343se_outsb(unsigned long port, const void *addr, unsigned long count) +{ + unsigned char *a = (unsigned char *) addr; + struct iop *p = port2iop(port); + while (count--) + (p->outb) (p, *a++, port); +} + +void +sh7343se_outsw(unsigned long port, const void *addr, unsigned long count) +{ + unsigned short *a = (unsigned short *) addr; + struct iop *p = port2iop(port); + while (count--) + (p->outw) (p, *a++, port); +} + +void +sh7343se_outsl(unsigned long port, const void *addr, unsigned long count) +{ + badio(outsw, port); +} |