tegrakernel/kernel/kernel-4.9/arch/arm/mach-pxa/h5000.c

/*
 * Hardware definitions for HP iPAQ h5xxx Handheld Computers
 *
 * Copyright 2000-2003  Hewlett-Packard Company.
 * Copyright 2002       Jamey Hicks <jamey.hicks@hp.com>
 * Copyright 2004-2005  Phil Blundell <pb@handhelds.org>
 * Copyright 2007-2008  Anton Vorontsov <cbouatmailru@gmail.com>
 *
 * 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.
 *
 * COMPAQ COMPUTER CORPORATION MAKES NO WARRANTIES, EXPRESSED OR IMPLIED,
 * AS TO THE USEFULNESS OR CORRECTNESS OF THIS CODE OR ITS
 * FITNESS FOR ANY PARTICULAR PURPOSE.
 *
 * Author: Jamey Hicks.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>

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

#include "pxa25x.h"
#include "h5000.h"
#include "udc.h"
#include <mach/smemc.h>

#include "generic.h"

/*
 * Flash
 */

static struct mtd_partition h5000_flash0_partitions[] = {
	{
		.name = "bootldr",
		.size = 0x00040000,
		.offset = 0,
		.mask_flags = MTD_WRITEABLE,
	},
	{
		.name = "root",
		.size = MTDPART_SIZ_FULL,
		.offset = MTDPART_OFS_APPEND,
	},
};

static struct mtd_partition h5000_flash1_partitions[] = {
	{
		.name = "second root",
		.size = SZ_16M - 0x00040000,
		.offset = 0,
	},
	{
		.name = "asset",
		.size = MTDPART_SIZ_FULL,
		.offset = MTDPART_OFS_APPEND,
		.mask_flags = MTD_WRITEABLE,
	},
};

static struct physmap_flash_data h5000_flash0_data = {
	.width = 4,
	.parts = h5000_flash0_partitions,
	.nr_parts = ARRAY_SIZE(h5000_flash0_partitions),
};

static struct physmap_flash_data h5000_flash1_data = {
	.width = 4,
	.parts = h5000_flash1_partitions,
	.nr_parts = ARRAY_SIZE(h5000_flash1_partitions),
};

static struct resource h5000_flash0_resources = {
	.start = PXA_CS0_PHYS,
	.end = PXA_CS0_PHYS + SZ_32M - 1,
	.flags = IORESOURCE_MEM | IORESOURCE_MEM_32BIT,
};

static struct resource h5000_flash1_resources = {
	.start = PXA_CS0_PHYS + SZ_32M,
	.end = PXA_CS0_PHYS + SZ_32M + SZ_16M - 1,
	.flags = IORESOURCE_MEM | IORESOURCE_MEM_32BIT,
};

static struct platform_device h5000_flash[] = {
	{
		.name = "physmap-flash",
		.id = 0,
		.resource = &h5000_flash0_resources,
		.num_resources = 1,
		.dev = {
			.platform_data = &h5000_flash0_data,
		},
	},
	{
		.name = "physmap-flash",
		.id = 1,
		.resource = &h5000_flash1_resources,
		.num_resources = 1,
		.dev = {
			.platform_data = &h5000_flash1_data,
		},
	},
};

/*
 * USB Device Controller
 */

static struct pxa2xx_udc_mach_info h5000_udc_mach_info __initdata = {
	.gpio_pullup = H5000_GPIO_USB_PULLUP,
};

/*
 * GPIO setup
 */

static unsigned long h5000_pin_config[] __initdata = {
	/* Crystal and Clock Signals */
	GPIO12_32KHz,

	/* SDRAM and Static Memory I/O Signals */
	GPIO15_nCS_1,
	GPIO78_nCS_2,
	GPIO79_nCS_3,
	GPIO80_nCS_4,

	/* FFUART */
	GPIO34_FFUART_RXD,
	GPIO35_FFUART_CTS,
	GPIO36_FFUART_DCD,
	GPIO37_FFUART_DSR,
	GPIO38_FFUART_RI,
	GPIO39_FFUART_TXD,
	GPIO40_FFUART_DTR,
	GPIO41_FFUART_RTS,

	/* BTUART */
	GPIO42_BTUART_RXD,
	GPIO43_BTUART_TXD,
	GPIO44_BTUART_CTS,
	GPIO45_BTUART_RTS,

	/* SSP1 */
	GPIO23_SSP1_SCLK,
	GPIO25_SSP1_TXD,
	GPIO26_SSP1_RXD,

	/* I2S */
	GPIO28_I2S_BITCLK_OUT,
	GPIO29_I2S_SDATA_IN,
	GPIO30_I2S_SDATA_OUT,
	GPIO31_I2S_SYNC,
	GPIO32_I2S_SYSCLK,
};

/*
 * Localbus setup:
 * CS0: Flash;
 * CS1: MediaQ chip, select 16-bit bus and vlio;
 * CS5: SAMCOP.
 */

static void fix_msc(void)
{
	__raw_writel(0x129c24f2, MSC0);
	__raw_writel(0x7ff424fa, MSC1);
	__raw_writel(0x7ff47ff4, MSC2);

	__raw_writel(__raw_readl(MDREFR) | 0x02080000, MDREFR);
}

/*
 * Platform devices
 */

static struct platform_device *devices[] __initdata = {
	&h5000_flash[0],
	&h5000_flash[1],
};

static void __init h5000_init(void)
{
	fix_msc();

	pxa2xx_mfp_config(ARRAY_AND_SIZE(h5000_pin_config));
	pxa_set_ffuart_info(NULL);
	pxa_set_btuart_info(NULL);
	pxa_set_stuart_info(NULL);
	pxa_set_udc_info(&h5000_udc_mach_info);
	platform_add_devices(ARRAY_AND_SIZE(devices));
}

MACHINE_START(H5400, "HP iPAQ H5000")
	.atag_offset = 0x100,
	.map_io = pxa25x_map_io,
	.nr_irqs = PXA_NR_IRQS,
	.init_irq = pxa25x_init_irq,
	.handle_irq = pxa25x_handle_irq,
	.init_time	= pxa_timer_init,
	.init_machine = h5000_init,
	.restart	= pxa_restart,
MACHINE_END