270 lines
6.5 KiB
C
270 lines
6.5 KiB
C
/*
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* mach-imx27_visstrim_m10.c
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*
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* Copyright 2010 Javier Martin <javier.martin@vista-silicon.com>
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*
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* Based on mach-pcm038.c, mach-pca100.c, mach-mx27ads.c and others.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/platform_device.h>
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#include <linux/mtd/physmap.h>
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#include <linux/i2c.h>
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#include <linux/i2c/pca953x.h>
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#include <linux/input.h>
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#include <linux/gpio.h>
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#include <linux/delay.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/time.h>
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#include <mach/common.h>
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#include <mach/iomux.h>
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#include "devices-imx27.h"
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#define OTG_PHY_CS_GPIO (GPIO_PORTF + 17)
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#define SDHC1_IRQ IRQ_GPIOB(25)
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static const int visstrim_m10_pins[] __initconst = {
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/* UART1 (console) */
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PE12_PF_UART1_TXD,
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PE13_PF_UART1_RXD,
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PE14_PF_UART1_CTS,
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PE15_PF_UART1_RTS,
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/* FEC */
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PD0_AIN_FEC_TXD0,
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PD1_AIN_FEC_TXD1,
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PD2_AIN_FEC_TXD2,
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PD3_AIN_FEC_TXD3,
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PD4_AOUT_FEC_RX_ER,
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PD5_AOUT_FEC_RXD1,
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PD6_AOUT_FEC_RXD2,
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PD7_AOUT_FEC_RXD3,
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PD8_AF_FEC_MDIO,
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PD9_AIN_FEC_MDC,
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PD10_AOUT_FEC_CRS,
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PD11_AOUT_FEC_TX_CLK,
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PD12_AOUT_FEC_RXD0,
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PD13_AOUT_FEC_RX_DV,
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PD14_AOUT_FEC_RX_CLK,
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PD15_AOUT_FEC_COL,
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PD16_AIN_FEC_TX_ER,
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PF23_AIN_FEC_TX_EN,
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/* SSI1 */
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PC20_PF_SSI1_FS,
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PC21_PF_SSI1_RXD,
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PC22_PF_SSI1_TXD,
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PC23_PF_SSI1_CLK,
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/* SDHC1 */
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PE18_PF_SD1_D0,
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PE19_PF_SD1_D1,
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PE20_PF_SD1_D2,
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PE21_PF_SD1_D3,
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PE22_PF_SD1_CMD,
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PE23_PF_SD1_CLK,
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/* Both I2Cs */
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PD17_PF_I2C_DATA,
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PD18_PF_I2C_CLK,
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PC5_PF_I2C2_SDA,
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PC6_PF_I2C2_SCL,
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/* USB OTG */
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OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
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PC9_PF_USBOTG_DATA0,
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PC11_PF_USBOTG_DATA1,
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PC10_PF_USBOTG_DATA2,
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PC13_PF_USBOTG_DATA3,
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PC12_PF_USBOTG_DATA4,
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PC7_PF_USBOTG_DATA5,
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PC8_PF_USBOTG_DATA6,
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PE25_PF_USBOTG_DATA7,
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PE24_PF_USBOTG_CLK,
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PE2_PF_USBOTG_DIR,
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PE0_PF_USBOTG_NXT,
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PE1_PF_USBOTG_STP,
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PB23_PF_USB_PWR,
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PB24_PF_USB_OC,
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};
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/* GPIOs used as events for applications */
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static struct gpio_keys_button visstrim_gpio_keys[] = {
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{
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.type = EV_KEY,
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.code = KEY_RESTART,
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.gpio = (GPIO_PORTC + 15),
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.desc = "Default config",
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.active_low = 0,
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.wakeup = 1,
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},
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{
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.type = EV_KEY,
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.code = KEY_RECORD,
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.gpio = (GPIO_PORTF + 14),
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.desc = "Record",
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.active_low = 0,
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.wakeup = 1,
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},
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{
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.type = EV_KEY,
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.code = KEY_STOP,
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.gpio = (GPIO_PORTF + 13),
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.desc = "Stop",
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.active_low = 0,
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.wakeup = 1,
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}
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};
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static const struct gpio_keys_platform_data
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visstrim_gpio_keys_platform_data __initconst = {
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.buttons = visstrim_gpio_keys,
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.nbuttons = ARRAY_SIZE(visstrim_gpio_keys),
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};
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/* Visstrim_SM10 has a microSD slot connected to sdhc1 */
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static int visstrim_m10_sdhc1_init(struct device *dev,
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irq_handler_t detect_irq, void *data)
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{
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int ret;
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ret = request_irq(SDHC1_IRQ, detect_irq, IRQF_TRIGGER_FALLING,
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"mmc-detect", data);
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return ret;
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}
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static void visstrim_m10_sdhc1_exit(struct device *dev, void *data)
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{
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free_irq(SDHC1_IRQ, data);
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}
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static const struct imxmmc_platform_data visstrim_m10_sdhc_pdata __initconst = {
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.init = visstrim_m10_sdhc1_init,
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.exit = visstrim_m10_sdhc1_exit,
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};
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/* Visstrim_SM10 NOR flash */
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static struct physmap_flash_data visstrim_m10_flash_data = {
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.width = 2,
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};
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static struct resource visstrim_m10_flash_resource = {
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.start = 0xc0000000,
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.end = 0xc0000000 + SZ_64M - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device visstrim_m10_nor_mtd_device = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &visstrim_m10_flash_data,
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},
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.num_resources = 1,
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.resource = &visstrim_m10_flash_resource,
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};
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static struct platform_device *platform_devices[] __initdata = {
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&visstrim_m10_nor_mtd_device,
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};
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/* Visstrim_M10 uses UART0 as console */
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static const struct imxuart_platform_data uart_pdata __initconst = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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/* I2C */
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static const struct imxi2c_platform_data visstrim_m10_i2c_data __initconst = {
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.bitrate = 100000,
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};
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static struct pca953x_platform_data visstrim_m10_pca9555_pdata = {
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.gpio_base = 240, /* After MX27 internal GPIOs */
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.invert = 0,
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};
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static struct i2c_board_info visstrim_m10_i2c_devices[] = {
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{
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I2C_BOARD_INFO("pca9555", 0x20),
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.platform_data = &visstrim_m10_pca9555_pdata,
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},
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{
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I2C_BOARD_INFO("tlv320aic32x4", 0x18),
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}
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};
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/* USB OTG */
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static int otg_phy_init(struct platform_device *pdev)
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{
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gpio_set_value(OTG_PHY_CS_GPIO, 0);
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mdelay(10);
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return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
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}
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static const struct mxc_usbh_platform_data
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visstrim_m10_usbotg_pdata __initconst = {
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.init = otg_phy_init,
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.portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
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};
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/* SSI */
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static const struct imx_ssi_platform_data visstrim_m10_ssi_pdata __initconst = {
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.flags = IMX_SSI_DMA | IMX_SSI_SYN,
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};
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static void __init visstrim_m10_board_init(void)
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{
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int ret;
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ret = mxc_gpio_setup_multiple_pins(visstrim_m10_pins,
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ARRAY_SIZE(visstrim_m10_pins), "VISSTRIM_M10");
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if (ret)
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pr_err("Failed to setup pins (%d)\n", ret);
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imx27_add_imx_ssi(0, &visstrim_m10_ssi_pdata);
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imx27_add_imx_uart0(&uart_pdata);
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i2c_register_board_info(0, visstrim_m10_i2c_devices,
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ARRAY_SIZE(visstrim_m10_i2c_devices));
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imx27_add_imx_i2c(0, &visstrim_m10_i2c_data);
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imx27_add_imx_i2c(1, &visstrim_m10_i2c_data);
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imx27_add_mxc_mmc(0, &visstrim_m10_sdhc_pdata);
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imx27_add_mxc_ehci_otg(&visstrim_m10_usbotg_pdata);
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imx27_add_fec(NULL);
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imx_add_gpio_keys(&visstrim_gpio_keys_platform_data);
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platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
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}
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static void __init visstrim_m10_timer_init(void)
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{
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mx27_clocks_init((unsigned long)25000000);
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}
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static struct sys_timer visstrim_m10_timer = {
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.init = visstrim_m10_timer_init,
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};
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MACHINE_START(IMX27_VISSTRIM_M10, "Vista Silicon Visstrim_M10")
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.boot_params = MX27_PHYS_OFFSET + 0x100,
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.map_io = mx27_map_io,
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.init_early = imx27_init_early,
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.init_irq = mx27_init_irq,
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.timer = &visstrim_m10_timer,
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.init_machine = visstrim_m10_board_init,
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MACHINE_END
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