--- /dev/null
+/*
+ * 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 <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/input.h>
+#include <linux/i2c/twl4030.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/ads7846.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 <mach/gpio.h>
+#include <mach/board.h>
+#include <mach/common.h>
+#include <mach/mmc.h>
+#include <mach/gpmc.h>
+#include <mach/nand.h>
+#include <mach/mcspi.h>
+#include <mach/mux.h>
+
+#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 <arunks@mistralsolutions.com> */
+ .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
projects / linux-2.6-omap-h63xx.git / blobdiff