X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?p=linux-2.6-omap-h63xx.git;a=blobdiff_plain;f=arch%2Farm%2Fmach-omap2%2Fboard-omap2evm.c;fp=arch%2Farm%2Fmach-omap2%2Fboard-omap2evm.c;h=86477ccc9967de9278932ab32163d388ae9b0e58;hp=0000000000000000000000000000000000000000;hb=0d5f2216edfeb9904e0d6512f803b0f93871baaf;hpb=14fc69723d3442ef46f8f82b3f481e82f06a346d diff --git a/arch/arm/mach-omap2/board-omap2evm.c b/arch/arm/mach-omap2/board-omap2evm.c new file mode 100644 index 00000000000..86477ccc996 --- /dev/null +++ b/arch/arm/mach-omap2/board-omap2evm.c @@ -0,0 +1,385 @@ +/* + * linux/arch/arm/mach-omap2/board-omap2evm.c + * + * Copyright (C) 2008 Mistral Solutions Pvt Ltd + * + * Modified from mach-omap2/board-generic.c + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "mmc-twl4030.h" + +#define OMAP2EVM_ETHR_START 0x2c000000 +#define OMAP2EVM_ETHR_SIZE 1024 +#define OMAP2EVM_ETHR_GPIO_IRQ 149 +#define OMAP2_EVM_TS_GPIO 85 + +#define GPMC_OFF_CONFIG1_0 0x60 + +static struct mtd_partition omap2evm_nand_partitions[] = { + { + .name = "X-Loader", + .offset = 0, + .size = 1 * (64 * 2048), + .mask_flags = MTD_WRITEABLE, /* force read-only */ + }, + { + .name = "U-Boot", + .offset = MTDPART_OFS_APPEND, + .size = 3 * (64 * 2048), + .mask_flags = MTD_WRITEABLE, /* force read-only */ + }, + { + .name = "U-Boot Environment", + .offset = MTDPART_OFS_APPEND, + .size = 1 * (64 * 2048), + }, + { + .name = "Kernel", + .offset = MTDPART_OFS_APPEND, + .size = 16 * (64 * 2048), /* 2MB */ + }, + { + .name = "Ramdisk", + .offset = MTDPART_OFS_APPEND, + .size = 32 * (64 * 2048), /* 4MB */ + }, + { + .name = "Filesystem", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + } +}; + +static struct omap_nand_platform_data omap2evm_nand_data = { + .parts = omap2evm_nand_partitions, + .nr_parts = ARRAY_SIZE(omap2evm_nand_partitions), + .dma_channel = -1, /* disable DMA in OMAP NAND driver */ +}; + +static struct resource omap2evm_nand_resource = { + .flags = IORESOURCE_MEM, +}; + +static struct platform_device omap2evm_nand_device = { + .name = "omap2-nand", + .id = -1, + .dev = { + .platform_data = &omap2evm_nand_data, + }, + .num_resources = 1, + .resource = &omap2evm_nand_resource, +}; + +void __init omap2evm_flash_init(void) +{ + void __iomem *gpmc_base_add, *gpmc_cs_base_add; + unsigned char cs = 0; + + gpmc_base_add = (__force void __iomem *)OMAP243X_GPMC_VIRT; + while (cs < GPMC_CS_NUM) { + int ret = 0; + + /* Each GPMC set for a single CS is at offset 0x30 */ + gpmc_cs_base_add = (gpmc_base_add + GPMC_OFF_CONFIG1_0 + + (cs * 0x30)); + + /* xloader/Uboot would have programmed the NAND + * base address for us This is a ugly hack. The proper + * way of doing this is to pass the setup of u-boot up + * to kernel using kernel params - something on the + * lines of machineID. Check if Nand is + * configured */ + ret = __raw_readl(gpmc_cs_base_add + GPMC_CS_CONFIG1); + if ((ret & 0xC00) == (0x800)) { + /* Found it!! */ + printk(KERN_INFO "NAND: Found NAND on CS %d \n", cs); + break; + } + cs++; + } + if (cs >= GPMC_CS_NUM) { + printk(KERN_INFO "MTD: Unable to find MTD configuration in " + "GPMC - not registering.\n"); + return; + } + + omap2evm_nand_data.cs = cs; + omap2evm_nand_data.gpmc_cs_baseaddr = gpmc_cs_base_add; + omap2evm_nand_data.gpmc_baseaddr = gpmc_base_add; + + if (platform_device_register(&omap2evm_nand_device) < 0) { + printk(KERN_ERR "Unable to register NAND device\n"); + return; + } +} + +static struct resource omap2evm_smc911x_resources[] = { + [0] = { + .start = OMAP2EVM_ETHR_START, + .end = (OMAP2EVM_ETHR_START + OMAP2EVM_ETHR_SIZE - 1), + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = OMAP_GPIO_IRQ(OMAP2EVM_ETHR_GPIO_IRQ), + .end = OMAP_GPIO_IRQ(OMAP2EVM_ETHR_GPIO_IRQ), + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device omap2evm_smc911x_device = { + .name = "smc911x", + .id = -1, + .num_resources = ARRAY_SIZE(omap2evm_smc911x_resources), + .resource = &omap2evm_smc911x_resources [0], +}; + +static inline void __init omap2evm_init_smc911x(void) +{ + int gpio = OMAP2EVM_ETHR_GPIO_IRQ; + int ret; + + ret = gpio_request(gpio, "smc911x IRQ"); + if (ret < 0) { + printk(KERN_ERR "Failed to request GPIO %d for smc911x IRQ\n", + gpio); + return; + } + gpio_direction_input(gpio); + +} + +static struct platform_device omap2_evm_lcd_device = { + .name = "omap2evm_lcd", + .id = -1, +}; + +static struct omap_lcd_config omap2_evm_lcd_config __initdata = { + .ctrl_name = "internal", +}; + +static void ads7846_dev_init(void) +{ + int gpio = OMAP2_EVM_TS_GPIO; + int ret; + + ret = gpio_request(gpio, "ads7846_pen_down"); + if (ret < 0) { + printk(KERN_ERR "Failed to request GPIO %d for ads7846 pen down IRQ\n", + gpio); + return; + } + + gpio_direction_input(gpio); + + /*Setting the MUX */ + omap_cfg_reg(Y18_2430_MCSPI1_CLK); + omap_cfg_reg(AD15_2430_MCSPI1_SIMO); + omap_cfg_reg(AE17_2430_MCSPI1_SOMI); + omap_cfg_reg(U1_2430_MCSPI1_CS0); + + omap_cfg_reg(AF19_2430_GPIO_85); + +} + +static int ads7846_get_pendown_state(void) +{ + return !gpio_get_value(OMAP2_EVM_TS_GPIO); +} + +struct ads7846_platform_data ads7846_config = { + .x_max = 0x0fff, + .y_max = 0x0fff, + .x_plate_ohms = 180, + .pressure_max = 255, + .debounce_max = 10, + .debounce_tol = 3, + .debounce_rep = 1, + .get_pendown_state = ads7846_get_pendown_state, + .keep_vref_on = 1, + .settle_delay_usecs = 150, +}; + +static struct omap2_mcspi_device_config ads7846_mcspi_config = { + .turbo_mode = 0, + .single_channel = 1, /* 0: slave, 1: master */ +}; + +struct spi_board_info omap2evm_spi_board_info[] = { + [0] = { + .modalias = "ads7846", + .bus_num = 1, + .chip_select = 0, + .max_speed_hz = 1500000, + .controller_data = &ads7846_mcspi_config, + .irq = OMAP_GPIO_IRQ(OMAP2_EVM_TS_GPIO), + .platform_data = &ads7846_config, + }, +}; + + +static int omap2evm_keymap[] = { + KEY(0, 0, KEY_LEFT), + KEY(0, 1, KEY_RIGHT), + KEY(0, 2, KEY_A), + KEY(0, 3, KEY_B), + KEY(1, 0, KEY_DOWN), + KEY(1, 1, KEY_UP), + KEY(1, 2, KEY_E), + KEY(1, 3, KEY_F), + KEY(2, 0, KEY_ENTER), + KEY(2, 1, KEY_I), + KEY(2, 2, KEY_J), + KEY(2, 3, KEY_K), + KEY(3, 0, KEY_M), + KEY(3, 1, KEY_N), + KEY(3, 2, KEY_O), + KEY(3, 3, KEY_P) +}; + +static struct twl4030_keypad_data omap2evm_kp_data = { + .rows = 4, + .cols = 4, + .keymap = omap2evm_keymap, + .keymapsize = ARRAY_SIZE(omap2evm_keymap), + .rep = 1, +}; + +static void __init omap2_evm_init_irq(void) +{ + omap2_init_common_hw(NULL); + omap_init_irq(); + omap_gpio_init(); + omap2evm_init_smc911x(); +} + +static struct omap_uart_config omap2_evm_uart_config __initdata = { + .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)), +}; + +static struct omap_board_config_kernel omap2_evm_config[] __initdata = { + { OMAP_TAG_UART, &omap2_evm_uart_config }, + { OMAP_TAG_LCD, &omap2_evm_lcd_config }, +}; + +static struct twl4030_gpio_platform_data omap2evm_gpio_data = { + .gpio_base = OMAP_MAX_GPIO_LINES, + .irq_base = TWL4030_GPIO_IRQ_BASE, + .irq_end = TWL4030_GPIO_IRQ_END, +}; + +static struct twl4030_usb_data omap2evm_usb_data = { + .usb_mode = T2_USB_MODE_ULPI, +}; + +static struct twl4030_madc_platform_data omap2evm_madc_data = { + .irq_line = 1, +}; + +static struct twl4030_platform_data omap2evm_twldata = { + .irq_base = TWL4030_IRQ_BASE, + .irq_end = TWL4030_IRQ_END, + + /* platform_data for children goes here */ + .keypad = &omap2evm_kp_data, + .madc = &omap2evm_madc_data, + .usb = &omap2evm_usb_data, + .gpio = &omap2evm_gpio_data, +}; + +static struct i2c_board_info __initdata omap2evm_i2c_boardinfo[] = { + { + I2C_BOARD_INFO("twl4030", 0x48), + .flags = I2C_CLIENT_WAKE, + .irq = INT_24XX_SYS_NIRQ, + .platform_data = &omap2evm_twldata, + }, +}; + +static int __init omap2_evm_i2c_init(void) +{ + omap_register_i2c_bus(1, 400, NULL, 0); + omap_register_i2c_bus(2, 2600, omap2evm_i2c_boardinfo, + ARRAY_SIZE(omap2evm_i2c_boardinfo)); + return 0; +} + +static struct platform_device *omap2_evm_devices[] __initdata = { + &omap2_evm_lcd_device, + &omap2evm_smc911x_device, +}; + +static struct twl4030_hsmmc_info mmc[] __initdata = { + { + .mmc = 1, + .wires = 4, + .gpio_cd = -EINVAL, + .gpio_wp = -EINVAL, + }, + {} /* Terminator */ +}; + +static void __init omap2_evm_init(void) +{ + omap2_evm_i2c_init(); + + platform_add_devices(omap2_evm_devices, ARRAY_SIZE(omap2_evm_devices)); + omap_board_config = omap2_evm_config; + omap_board_config_size = ARRAY_SIZE(omap2_evm_config); + spi_register_board_info(omap2evm_spi_board_info, + ARRAY_SIZE(omap2evm_spi_board_info)); + omap_serial_init(); + twl4030_mmc_init(mmc); + omap2evm_flash_init(); + ads7846_dev_init(); +} + +static void __init omap2_evm_map_io(void) +{ + omap2_set_globals_243x(); + omap2_map_common_io(); +} + +MACHINE_START(OMAP2EVM, "OMAP2EVM Board") + /* Maintainer: Arun KS */ + .phys_io = 0x48000000, + .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, + .boot_params = 0x80000100, + .map_io = omap2_evm_map_io, + .init_irq = omap2_evm_init_irq, + .init_machine = omap2_evm_init, + .timer = &omap_timer, +MACHINE_END