2 * mach-imx27_visstrim_m10.c
4 * Copyright 2010 Javier Martin <javier.martin@vista-silicon.com>
6 * Based on mach-pcm038.c, mach-pca100.c, mach-mx27ads.c and others.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
24 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
26 #include <linux/platform_device.h>
27 #include <linux/mtd/physmap.h>
28 #include <linux/i2c.h>
29 #include <linux/i2c/pca953x.h>
30 #include <linux/gpio_keys.h>
31 #include <linux/input.h>
32 #include <linux/gpio.h>
33 #include <asm/mach-types.h>
34 #include <asm/mach/arch.h>
35 #include <asm/mach/time.h>
36 #include <mach/common.h>
38 #include <mach/iomux.h>
39 #include <mach/mxc_ehci.h>
41 #include "devices-imx27.h"
44 #define OTG_PHY_CS_GPIO (GPIO_PORTF + 17)
45 #define SDHC1_IRQ IRQ_GPIOB(25)
47 static int visstrim_m10_pins[] = {
85 OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
102 /* GPIOs used as events for applications */
103 static struct gpio_keys_button visstrim_gpio_keys[] = {
107 .gpio = (GPIO_PORTC + 15),
108 .desc = "Default config",
115 .gpio = (GPIO_PORTF + 14),
123 .gpio = (GPIO_PORTF + 13),
130 static struct gpio_keys_platform_data visstrim_gpio_keys_platform_data = {
131 .buttons = visstrim_gpio_keys,
132 .nbuttons = ARRAY_SIZE(visstrim_gpio_keys),
135 static struct platform_device visstrim_gpio_keys_device = {
139 .platform_data = &visstrim_gpio_keys_platform_data,
143 /* Visstrim_SM10 has a microSD slot connected to sdhc1 */
144 static int visstrim_m10_sdhc1_init(struct device *dev,
145 irq_handler_t detect_irq, void *data)
149 ret = request_irq(SDHC1_IRQ, detect_irq, IRQF_TRIGGER_FALLING,
154 static void visstrim_m10_sdhc1_exit(struct device *dev, void *data)
156 free_irq(SDHC1_IRQ, data);
159 static struct imxmmc_platform_data visstrim_m10_sdhc_pdata = {
160 .init = visstrim_m10_sdhc1_init,
161 .exit = visstrim_m10_sdhc1_exit,
164 /* Visstrim_SM10 NOR flash */
165 static struct physmap_flash_data visstrim_m10_flash_data = {
169 static struct resource visstrim_m10_flash_resource = {
171 .end = 0xc0000000 + SZ_64M - 1,
172 .flags = IORESOURCE_MEM,
175 static struct platform_device visstrim_m10_nor_mtd_device = {
176 .name = "physmap-flash",
179 .platform_data = &visstrim_m10_flash_data,
182 .resource = &visstrim_m10_flash_resource,
185 static struct platform_device *platform_devices[] __initdata = {
186 &visstrim_gpio_keys_device,
187 &visstrim_m10_nor_mtd_device,
191 /* Visstrim_M10 uses UART0 as console */
192 static const struct imxuart_platform_data uart_pdata __initconst = {
193 .flags = IMXUART_HAVE_RTSCTS,
197 static const struct imxi2c_platform_data visstrim_m10_i2c_data __initconst = {
201 static struct pca953x_platform_data visstrim_m10_pca9555_pdata = {
202 .gpio_base = 240, /* After MX27 internal GPIOs */
206 static struct i2c_board_info visstrim_m10_i2c_devices[] = {
208 I2C_BOARD_INFO("pca9555", 0x20),
209 .platform_data = &visstrim_m10_pca9555_pdata,
214 static int otg_phy_init(struct platform_device *pdev)
216 gpio_set_value(OTG_PHY_CS_GPIO, 0);
220 static struct mxc_usbh_platform_data visstrim_m10_usbotg_pdata = {
221 .init = otg_phy_init,
222 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
223 .flags = MXC_EHCI_POWER_PINS_ENABLED,
226 static void __init visstrim_m10_board_init(void)
230 ret = mxc_gpio_setup_multiple_pins(visstrim_m10_pins,
231 ARRAY_SIZE(visstrim_m10_pins), "VISSTRIM_M10");
233 pr_err("Failed to setup pins (%d)\n", ret);
235 imx27_add_imx_uart0(&uart_pdata);
237 i2c_register_board_info(0, visstrim_m10_i2c_devices,
238 ARRAY_SIZE(visstrim_m10_i2c_devices));
239 imx27_add_imx_i2c(0, &visstrim_m10_i2c_data);
240 imx27_add_imx_i2c(1, &visstrim_m10_i2c_data);
241 mxc_register_device(&mxc_sdhc_device0, &visstrim_m10_sdhc_pdata);
242 mxc_register_device(&mxc_otg_host, &visstrim_m10_usbotg_pdata);
243 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
246 static void __init visstrim_m10_timer_init(void)
248 mx27_clocks_init((unsigned long)25000000);
251 static struct sys_timer visstrim_m10_timer = {
252 .init = visstrim_m10_timer_init,
255 MACHINE_START(IMX27_VISSTRIM_M10, "Vista Silicon Visstrim_M10")
256 .phys_io = MX27_AIPI_BASE_ADDR,
257 .io_pg_offst = ((MX27_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
258 .boot_params = MX27_PHYS_OFFSET + 0x100,
259 .map_io = mx27_map_io,
260 .init_irq = mx27_init_irq,
261 .init_machine = visstrim_m10_board_init,
262 .timer = &visstrim_m10_timer,