pnp2110.c

优龙2410linux2.6.8内核源代码

/*
 *  linux/arch/arm/mach-pxa/pnp2110.c
 *
 *  (C) 2003 SSV Marco Hasewinkel, Embedded Systems
 *  (C) 2004 Pengutronix, Robert Schwebel
 * 
 *  Support for the SSV PNP/2110-3V Platform.
 *  
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/major.h>
#include <linux/fs.h>
#include <linux/interrupt.h>

#include <asm/setup.h>
#include <asm/memory.h>
#include <asm/mach-types.h>
#include <asm/hardware.h>
#include <asm/irq.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>

#include <asm/arch/irq.h>

#include <asm/arch/pnp2110.h>

#include "generic.h"

/* 
 * FIXME: RSC: 
 * 
 * - fix memory tag in bootloader
 *
 * - direction for GPIOs: 
 *	set_GPIO_IRQ_edge(1 ,GPIO_RISING_EDGE);	 GPIO1 = EXT IRQ 
 *
 */

/* 
 * Interrupt Initialisation
 */
static void __init pnp2110_init_irq(void)
{
	pxa_init_irq();

	set_irq_type(PNP2110_ETH_IRQ, PNP2110_ETH_IRQ_EDGE);
}

/*
 * Ressource entries for onboard devices
 */
static struct resource smc91x_resources[] = {
        [0] = {
                .start  = PNP2110_ETH_PHYS,
                .end    = PNP2110_ETH_PHYS + PNP2110_ETH_SIZE - 1,
                .flags  = IORESOURCE_MEM,
        },
        [1] = {
                .start  = PNP2110_ETH_IRQ,
                .end    = PNP2110_ETH_IRQ,
                .flags  = IORESOURCE_IRQ,
        },
};

static struct platform_device smc91x_device = {
	.name		= "smc91x",
	.id		= 0,
	.num_resources	= ARRAY_SIZE(smc91x_resources),
	.resource	= smc91x_resources,
};

static struct platform_device *devices[] __initdata = {
	&smc91x_device,
};

/*
 * Specific Board Initialisation
 */
static int __init pnp2110_init(void)
{
	/* init pnp2110 irqs */
	/* FIXME: add here if we need platform specific non-modular interrupts */
	
	/* add device entries */
	return platform_add_devices(devices, ARRAY_SIZE(devices));
}

subsys_initcall(pnp2110_init);

static struct map_desc pnp2110_io_desc[] __initdata = {
/*  virtual           physical          length            type                           */
  { PNP2110_ETH_VIRT, PNP2110_ETH_PHYS, PNP2110_ETH_SIZE, MT_DEVICE }, /* ETH SMSC 91111 */
};

static void __init pnp2110_map_io(void)
{
	pxa_map_io();
	iotable_init(pnp2110_io_desc, ARRAY_SIZE(pnp2110_io_desc));

	/* Enable the BTUART */
	CKEN |= CKEN7_BTUART;
	pxa_gpio_mode(GPIO42_BTRXD_MD);
	pxa_gpio_mode(GPIO43_BTTXD_MD);
	pxa_gpio_mode(GPIO44_BTCTS_MD);
	pxa_gpio_mode(GPIO45_BTRTS_MD);

//	pxa_gpio_mode(GPIO33_nCS_5_MD);	/* SMSC network chip */

	/* setup sleep mode values */
	PWER  = 0x00000002;
	PFER  = 0x00000000;
	PRER  = 0x00000002;
	PGSR0 = 0x00008000;
	PGSR1 = 0x003F0202;
	PGSR2 = 0x0001C000;
	PCFR |= PCFR_OPDE;

	/* PCMCIA Socket 0 Timing - SSV has the ethernet chip located there */
	MCMEM0 = 0x00000000;
	MECR   = 0x00000003;
}

static void __init
pnp2110_fixup(struct machine_desc *desc, 
              struct tag *tag,
	      char **cmdline, struct meminfo *mi)
{
	/* FIXME: put this into bootloader */
	SET_BANK(0, 0xa0000000, (64*1024*1024));
	mi->nr_banks = 1;

}

MACHINE_START(PNP2110, "SSV PNP/2110-3V Platform")
	MAINTAINER("Robert Schwebel, Pengutronix")
	BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000))
	BOOT_PARAMS(0xa0000100)
	FIXUP(pnp2110_fixup)
	MAPIO(pnp2110_map_io)
	INITIRQ(pnp2110_init_irq)
MACHINE_END