- 根目录:
- arch
- arm
- mach-pxa
- colibri-pxa270.c
/*
* linux/arch/arm/mach-pxa/colibri-pxa270.c
*
* Support for Toradex PXA270 based Colibri module
* Daniel Mack <daniel@caiaq.de>
* Marek Vasut <marek.vasut@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>
#include <linux/sysdev.h>
#include <linux/ucb1400.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach-types.h>
#include <asm/sizes.h>
#include <mach/audio.h>
#include <mach/colibri.h>
#include <mach/pxa27x.h>
#include "devices.h"
#include "generic.h"
/******************************************************************************
* Evaluation board MFP
******************************************************************************/
#ifdef CONFIG_MACH_COLIBRI_EVALBOARD
static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {
/* MMC */
GPIO32_MMC_CLK,
GPIO92_MMC_DAT_0,
GPIO109_MMC_DAT_1,
GPIO110_MMC_DAT_2,
GPIO111_MMC_DAT_3,
GPIO112_MMC_CMD,
GPIO0_GPIO, /* SD detect */
/* FFUART */
GPIO39_FFUART_TXD,
GPIO34_FFUART_RXD,
/* UHC */
GPIO88_USBH1_PWR,
GPIO89_USBH1_PEN,
GPIO119_USBH2_PWR,
GPIO120_USBH2_PEN,
/* PCMCIA */
GPIO85_nPCE_1,
GPIO54_nPCE_2,
GPIO55_nPREG,
GPIO50_nPIOR,
GPIO51_nPIOW,
GPIO49_nPWE,
GPIO48_nPOE,
GPIO57_nIOIS16,
GPIO56_nPWAIT,
GPIO104_PSKTSEL,
GPIO53_GPIO, /* RESET */
GPIO83_GPIO, /* BVD1 */
GPIO82_GPIO, /* BVD2 */
GPIO1_GPIO, /* READY */
GPIO84_GPIO, /* DETECT */
GPIO107_GPIO, /* PPEN */
/* I2C */
GPIO117_I2C_SCL,
GPIO118_I2C_SDA,
};
#else
static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {};
#endif
#ifdef CONFIG_MACH_COLIBRI_PXA270_INCOME
static mfp_cfg_t income_pin_config[] __initdata = {
/* MMC */
GPIO32_MMC_CLK,
GPIO92_MMC_DAT_0,
GPIO109_MMC_DAT_1,
GPIO110_MMC_DAT_2,
GPIO111_MMC_DAT_3,
GPIO112_MMC_CMD,
GPIO0_GPIO, /* SD detect */
GPIO1_GPIO, /* SD read-only */
/* FFUART */
GPIO39_FFUART_TXD,
GPIO34_FFUART_RXD,
/* BFUART */
GPIO42_BTUART_RXD,
GPIO43_BTUART_TXD,
GPIO45_BTUART_RTS,
/* STUART */
GPIO46_STUART_RXD,
GPIO47_STUART_TXD,
/* UHC */
GPIO88_USBH1_PWR,
GPIO89_USBH1_PEN,
/* LCD */
GPIOxx_LCD_TFT_16BPP,
/* PWM */
GPIO16_PWM0_OUT,
/* I2C */
GPIO117_I2C_SCL,
GPIO118_I2C_SDA,
/* LED */
GPIO54_GPIO, /* LED A */
GPIO55_GPIO, /* LED B */
};
#else
static mfp_cfg_t income_pin_config[] __initdata = {};
#endif
/******************************************************************************
* Pin configuration
******************************************************************************/
static mfp_cfg_t colibri_pxa270_pin_config[] __initdata = {
/* Ethernet */
GPIO78_nCS_2, /* Ethernet CS */
GPIO114_GPIO, /* Ethernet IRQ */
/* AC97 */
GPIO28_AC97_BITCLK,
GPIO29_AC97_SDATA_IN_0,
GPIO30_AC97_SDATA_OUT,
GPIO31_AC97_SYNC,
GPIO95_AC97_nRESET,
GPIO98_AC97_SYSCLK,
GPIO113_GPIO, /* Touchscreen IRQ */
};
/******************************************************************************
* NOR Flash
******************************************************************************/
#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
static struct mtd_partition colibri_partitions[] = {
{
.name = "Bootloader",
.offset = 0x00000000,
.size = 0x00040000,
.mask_flags = MTD_WRITEABLE /* force read-only */
}, {
.name = "Kernel",
.offset = 0x00040000,
.size = 0x00400000,
.mask_flags = 0
}, {
.name = "Rootfs",
.offset = 0x00440000,
.size = MTDPART_SIZ_FULL,
.mask_flags = 0
}
};
static struct physmap_flash_data colibri_flash_data[] = {
{
.width = 4, /* bankwidth in bytes */
.parts = colibri_partitions,
.nr_parts = ARRAY_SIZE(colibri_partitions)
}
};
static struct resource colibri_pxa270_flash_resource = {
.start = PXA_CS0_PHYS,
.end = PXA_CS0_PHYS + SZ_32M - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device colibri_pxa270_flash_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = colibri_flash_data,
},
.resource = &colibri_pxa270_flash_resource,
.num_resources = 1,
};
static void __init colibri_pxa270_nor_init(void)
{
platform_device_register(&colibri_pxa270_flash_device);
}
#else
static inline void colibri_pxa270_nor_init(void) {}
#endif
/******************************************************************************
* Ethernet
******************************************************************************/
#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
static struct resource colibri_pxa270_dm9000_resources[] = {
{
.start = PXA_CS2_PHYS,
.end = PXA_CS2_PHYS + 3,
.flags = IORESOURCE_MEM,
},
{
.start = PXA_CS2_PHYS + 4,
.end = PXA_CS2_PHYS + 4 + 500,
.flags = IORESOURCE_MEM,
},
{
.start = gpio_to_irq(GPIO114_COLIBRI_PXA270_ETH_IRQ),
.end = gpio_to_irq(GPIO114_COLIBRI_PXA270_ETH_IRQ),
.flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
},
};
static struct platform_device colibri_pxa270_dm9000_device = {
.name = "dm9000",
.id = -1,
.num_resources = ARRAY_SIZE(colibri_pxa270_dm9000_resources),
.resource = colibri_pxa270_dm9000_resources,
};
static void __init colibri_pxa270_eth_init(void)
{
platform_device_register(&colibri_pxa270_dm9000_device);
}
#else
static inline void colibri_pxa270_eth_init(void) {}
#endif
/******************************************************************************
* Audio and Touchscreen
******************************************************************************/
#if defined(CONFIG_TOUCHSCREEN_UCB1400) || \
defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
static pxa2xx_audio_ops_t colibri_pxa270_ac97_pdata = {
.reset_gpio = 95,
};
static struct ucb1400_pdata colibri_pxa270_ucb1400_pdata = {
.irq = gpio_to_irq(GPIO113_COLIBRI_PXA270_TS_IRQ),
};
static struct platform_device colibri_pxa270_ucb1400_device = {
.name = "ucb1400_core",
.id = -1,
.dev = {
.platform_data = &colibri_pxa270_ucb1400_pdata,
},
};
static void __init colibri_pxa270_tsc_init(void)
{
pxa_set_ac97_info(&colibri_pxa270_ac97_pdata);
platform_device_register(&colibri_pxa270_ucb1400_device);
}
#else
static inline void colibri_pxa270_tsc_init(void) {}
#endif
static int colibri_pxa270_baseboard;
core_param(colibri_pxa270_baseboard, colibri_pxa270_baseboard, int, 0444);
static void __init colibri_pxa270_init(void)
{
pxa2xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa270_pin_config));
colibri_pxa270_nor_init();
colibri_pxa270_eth_init();
colibri_pxa270_tsc_init();
switch (colibri_pxa270_baseboard) {
case COLIBRI_EVALBOARD:
pxa2xx_mfp_config(ARRAY_AND_SIZE(
colibri_pxa270_evalboard_pin_config));
colibri_evalboard_init();
break;
case COLIBRI_PXA270_INCOME:
pxa2xx_mfp_config(ARRAY_AND_SIZE(income_pin_config));
colibri_pxa270_income_boardinit();
break;
default:
printk(KERN_ERR "Illegal colibri_pxa270_baseboard type %d\n",
colibri_pxa270_baseboard);
}
}
/* The "Income s.r.o. SH-Dmaster PXA270 SBC" board can be booted either
* with the INCOME mach type or with COLIBRI and the kernel parameter
* "colibri_pxa270_baseboard=1"
*/
static void __init colibri_pxa270_income_init(void)
{
colibri_pxa270_baseboard = COLIBRI_PXA270_INCOME;
colibri_pxa270_init();
}
MACHINE_START(COLIBRI, "Toradex Colibri PXA270")
.boot_params = COLIBRI_SDRAM_BASE + 0x100,
.init_machine = colibri_pxa270_init,
.map_io = pxa27x_map_io,
.init_irq = pxa27x_init_irq,
.timer = &pxa_timer,
MACHINE_END
MACHINE_START(INCOME, "Income s.r.o. SH-Dmaster PXA270 SBC")
.boot_params = 0xa0000100,
.init_machine = colibri_pxa270_income_init,
.map_io = pxa27x_map_io,
.init_irq = pxa27x_init_irq,
.timer = &pxa_timer,
MACHINE_END