FEX-Emu/linux
1
0
Fork 0
mirror of https://github.com/FEX-Emu/linux.git synced 2024-12-16 22:10:24 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

sh: mach-edosk7705: update for this century, kill off PIO trapping.

Browse Source 
The only reason this board needs to do PIO trapping is for ethernet,
which happens to follow the same scheme as its bigger brother the
edosk7760. With ethernet properly supported through the platform device,
we can kill off the left over PIO abortion.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2010-10-29 19:34:13 +09:00
parent db2d0373fd
commit c1cfed3c3a
3 changed files with 54 additions and 82 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/sh/boards/mach-edosk7705/Makefile
View File

@ -2,4 +2,4 @@
# Makefile for the EDOSK7705 specific parts of the kernel
#
obj-y := setup.o io.o
obj-y := setup.o

71
arch/sh/boards/mach-edosk7705/io.c
View File

@ -1,71 +0,0 @@
/*
* arch/sh/boards/renesas/edosk7705/io.c
*
* Copyright (C) 2001 Ian da Silva, Jeremy Siegel
* Based largely on io_se.c.
*
* I/O routines for Hitachi EDOSK7705 board.
*
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/io.h>
#include <mach/edosk7705.h>
#include <asm/addrspace.h>
#define SMC_IOADDR 0xA2000000
/* Map the Ethernet addresses as if it is at 0x300 - 0x320 */
static unsigned long sh_edosk7705_isa_port2addr(unsigned long port)
{
/*
* SMC91C96 registers are 4 byte aligned rather than the
* usual 2 byte!
*/
if (port >= 0x300 && port < 0x320)
return SMC_IOADDR + ((port - 0x300) * 2);
maybebadio(port);
return port;
}
/* Trying to read / write bytes on odd-byte boundaries to the Ethernet
* registers causes problems. So we bit-shift the value and read / write
* in 2 byte chunks. Setting the low byte to 0 does not cause problems
* now as odd byte writes are only made on the bit mask / interrupt
* register. This may not be the case in future Mar-2003 SJD
*/
unsigned char sh_edosk7705_inb(unsigned long port)
{
if (port >= 0x300 && port < 0x320 && port & 0x01)
return __raw_readw(port - 1) >> 8;
return __raw_readb(sh_edosk7705_isa_port2addr(port));
}
void sh_edosk7705_outb(unsigned char value, unsigned long port)
{
if (port >= 0x300 && port < 0x320 && port & 0x01) {
__raw_writew(((unsigned short)value << 8), port - 1);
return;
}
__raw_writeb(value, sh_edosk7705_isa_port2addr(port));
}
void sh_edosk7705_insb(unsigned long port, void *addr, unsigned long count)
{
unsigned char *p = addr;
while (count--)
*p++ = sh_edosk7705_inb(port);
}
void sh_edosk7705_outsb(unsigned long port, const void *addr, unsigned long count)
{
unsigned char *p = (unsigned char *)addr;
while (count--)
sh_edosk7705_outb(*p++, port);
}

63
arch/sh/boards/mach-edosk7705/setup.c
View File

@ -10,27 +10,70 @@
*/
#include <linux/init.h>
#include <linux/irq.h>
#include <asm/machvec.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/smc91x.h>
#include <mach/edosk7705.h>
#include <asm/machvec.h>
#include <asm/sizes.h>
#define SMC_IOBASE 0xA2000000
#define SMC_IO_OFFSET 0x300
#define SMC_IOADDR (SMC_IOBASE + SMC_IO_OFFSET)
#define ETHERNET_IRQ 0x09
static void __init sh_edosk7705_init_irq(void)
{
/* This is the Ethernet interrupt */
make_imask_irq(0x09);
make_imask_irq(ETHERNET_IRQ);
}
/* eth initialization functions */
static struct smc91x_platdata smc91x_info = {
.flags = SMC91X_USE_16BIT | SMC91X_IO_SHIFT_1 | IORESOURCE_IRQ_LOWLEVEL,
};
static struct resource smc91x_res[] = {
[0] = {
.start = SMC_IOADDR,
.end = SMC_IOADDR + SZ_32 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = ETHERNET_IRQ,
.end = ETHERNET_IRQ,
.flags = IORESOURCE_IRQ ,
}
};
static struct platform_device smc91x_dev = {
.name = "smc91x",
.id = -1,
.num_resources = ARRAY_SIZE(smc91x_res),
.resource = smc91x_res,
.dev = {
.platform_data = &smc91x_info,
},
};
/* platform init code */
static struct platform_device *edosk7705_devices[] __initdata = {
&smc91x_dev,
};
static int __init init_edosk7705_devices(void)
{
return platform_add_devices(edosk7705_devices,
ARRAY_SIZE(edosk7705_devices));
}
__initcall(init_edosk7705_devices);
/*
* The Machine Vector
*/
static struct sh_machine_vector mv_edosk7705 __initmv = {
.mv_name = "EDOSK7705",
.mv_nr_irqs = 80,
.mv_inb = sh_edosk7705_inb,
.mv_outb = sh_edosk7705_outb,
.mv_insb = sh_edosk7705_insb,
.mv_outsb = sh_edosk7705_outsb,
.mv_init_irq = sh_edosk7705_init_irq,
};