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Commit c1cfed3c authored by Paul Mundt's avatar Paul Mundt
Browse files

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



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: default avatarPaul Mundt <lethal@linux-sh.org>
parent db2d0373

arch/sh/boards/mach-edosk7705/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -2,4 +2,4 @@ 
# Makefile for the EDOSK7705 specific parts of the kernel

#



obj-y	 := setup.o io.o
 
obj-y	 := setup.o

arch/sh/boards/mach-edosk7705/io.c

deleted100644 → 0
+0 −71
Original line number Diff line number Diff line 
/*

 * 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);

}

arch/sh/boards/mach-edosk7705/setup.c

+53 −10
Original line number Diff line number Diff line
@@ -10,14 +10,64 @@ 
 */

#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
@@ -25,12 +75,5 @@ static void __init sh_edosk7705_init_irq(void) 
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,

};