csb226.c

来自「优龙2410linux2.6.8内核源代码」· C语言 代码 · 共 143 行

/*
 *  linux/arch/arm/mach-pxa/csb226.c
 *
 * (c) 2002, 2003 Robert Schwebel <[e-mail]>, Pengutronix
 *
 * 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/irqs.h>
#include <asm/arch/csb226.h>

#include "generic.h"

#if 0
#include <linux/sched.h>
#include <asm/types.h>
#endif

static void __init csb226_init_irq(void)
{
	pxa_init_irq();

}

/*
 * Ressource entries for onboard devices
 */

static struct resource cs8900_resources[] = {
        [0] = {
                .start  = CSB226_ETH_PHYS,
                .end    = CSB226_ETH_PHYS + CSB226_ETH_SIZE - 1,
                .flags  = IORESOURCE_MEM,
        },
        [1] = {
                .start  = CSB226_ETH_IRQ,
                .end    = CSB226_ETH_IRQ,
                .flags  = IORESOURCE_IRQ,
        },
};

static struct platform_device cs8900_device = {
	.name		= "cs8900",
	.id		= 0,
	.num_resources	= ARRAY_SIZE(cs8900_resources),
	.resource	= cs8900_resources,
};

static struct platform_device *devices[] __initdata = {
	&cs8900_device,
};

static int __init csb226_init(void)
{
	/* add device entries */
	return platform_add_devices(devices, ARRAY_SIZE(devices));
}

__initcall(csb226_init);

#if 0
// obsolete in 2.6...? [RSC]
static void __init
fixup_csb226(struct machine_desc *desc, struct param_struct *params,
		char **cmdline, struct meminfo *mi)
{
	/* we probably want to get this information from the bootloader later */
	SET_BANK (0, 0xa0000000, 64*1024*1024); 
	mi->nr_banks      = 1;
}
#endif

/* memory mapping */ 
static struct map_desc csb226_io_desc[] __initdata = {
	/* virtual         physical         length           domain */
	{ CSB226_ETH_VIRT, CSB226_ETH_PHYS, CSB226_ETH_SIZE, MT_DEVICE }, /* CS8900 LAN controller   */
};


static void __init csb226_map_io(void)
{
	pxa_map_io();
	iotable_init(csb226_io_desc, ARRAY_SIZE(csb226_io_desc));

	/* This enables 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);

	/* This is for the CS8900 chip select */
	pxa_gpio_mode(GPIO78_nCS_2_MD);

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


MACHINE_START(CSB226, "Cogent CSB226 Development Platform")
	MAINTAINER("Robert Schwebel, Pengutronix")
	BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000))
	BOOT_PARAMS(0xa0000100)
	MAPIO(csb226_map_io)
	INITIRQ(csb226_init_irq)
MACHINE_END