1. 根目录:
2. arch
3. arm
4. mach-msm
5. board-msm7x27.c

/*
 * Copyright (C) 2007 Google, Inc.
 * Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved.
 * Author: Brian Swetland <swetland@google.com>
 *
 * This software is licensed under the terms of the GNU General Public
 * License version 2, as published by the Free Software Foundation, and
 * may be copied, distributed, and modified under those terms.
 *
 * 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.
 *
 */
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/io.h>
#include <linux/delay.h>
#include <linux/power_supply.h>

#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/flash.h>
#include <asm/setup.h>
#ifdef CONFIG_CACHE_L2X0
#include <asm/hardware/cache-l2x0.h>
#endif

#include <mach/vreg.h>
#include <mach/mpp.h>
#include <mach/board.h>
#include <mach/msm_iomap.h>

#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>

#include "devices.h"
#include "socinfo.h"
#include "clock.h"

static struct resource smc91x_resources[] = {
	[0] = {
		.start	= 0x9C004300,
		.end	= 0x9C0043ff,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= MSM_GPIO_TO_INT(132),
		.end	= MSM_GPIO_TO_INT(132),
		.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 = {
	&msm_device_uart3,
	&msm_device_smd,
	&msm_device_dmov,
	&msm_device_nand,
	&smc91x_device,
};

extern struct sys_timer msm_timer;

static void __init msm7x2x_init_irq(void)
{
	msm_init_irq();
}

static void __init msm7x2x_init(void)
{
	if (socinfo_init() < 0)
		BUG();

	if (machine_is_msm7x25_ffa() || machine_is_msm7x27_ffa()) {
		smc91x_resources[0].start = 0x98000300;
		smc91x_resources[0].end = 0x980003ff;
		smc91x_resources[1].start = MSM_GPIO_TO_INT(85);
		smc91x_resources[1].end = MSM_GPIO_TO_INT(85);
		if (gpio_tlmm_config(GPIO_CFG(85, 0,
					      GPIO_INPUT,
					      GPIO_PULL_DOWN,
					      GPIO_2MA),
				     GPIO_ENABLE)) {
			printk(KERN_ERR
			       "%s: Err: Config GPIO-85 INT\n",
				__func__);
		}
	}

	platform_add_devices(devices, ARRAY_SIZE(devices));
}

static void __init msm7x2x_map_io(void)
{
	msm_map_common_io();
	/* Technically dependent on the SoC but using machine_is
	 * macros since socinfo is not available this early and there
	 * are plans to restructure the code which will eliminate the
	 * need for socinfo.
	 */
	if (machine_is_msm7x27_surf() || machine_is_msm7x27_ffa())
		msm_clock_init(msm_clocks_7x27, msm_num_clocks_7x27);

	if (machine_is_msm7x25_surf() || machine_is_msm7x25_ffa())
		msm_clock_init(msm_clocks_7x25, msm_num_clocks_7x25);

#ifdef CONFIG_CACHE_L2X0
	if (machine_is_msm7x27_surf() || machine_is_msm7x27_ffa()) {
		/* 7x27 has 256KB L2 cache:
			64Kb/Way and 4-Way Associativity;
			R/W latency: 3 cycles;
			evmon/parity/share disabled. */
		l2x0_init(MSM_L2CC_BASE, 0x00068012, 0xfe000000);
	}
#endif
}

MACHINE_START(MSM7X27_SURF, "QCT MSM7x27 SURF")
	.atag_offset	= 0x100,
	.map_io		= msm7x2x_map_io,
	.init_irq	= msm7x2x_init_irq,
	.init_machine	= msm7x2x_init,
	.timer		= &msm_timer,
MACHINE_END

MACHINE_START(MSM7X27_FFA, "QCT MSM7x27 FFA")
	.atag_offset	= 0x100,
	.map_io		= msm7x2x_map_io,
	.init_irq	= msm7x2x_init_irq,
	.init_machine	= msm7x2x_init,
	.timer		= &msm_timer,
MACHINE_END

MACHINE_START(MSM7X25_SURF, "QCT MSM7x25 SURF")
	.atag_offset	= 0x100,
	.map_io		= msm7x2x_map_io,
	.init_irq	= msm7x2x_init_irq,
	.init_machine	= msm7x2x_init,
	.timer		= &msm_timer,
MACHINE_END

MACHINE_START(MSM7X25_FFA, "QCT MSM7x25 FFA")
	.atag_offset	= 0x100,
	.map_io		= msm7x2x_map_io,
	.init_irq	= msm7x2x_init_irq,
	.init_machine	= msm7x2x_init,
	.timer		= &msm_timer,
MACHINE_END