233 lines
6.2 KiB
C
233 lines
6.2 KiB
C
/*
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* Copyright (C) 2010 Eric Benard - eric@eukrea.com
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*
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* Based on pcm970-baseboard.c which is :
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* Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/gpio.h>
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#include <linux/interrupt.h>
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#include <linux/leds.h>
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#include <linux/platform_device.h>
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#include <linux/input.h>
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#include <linux/i2c.h>
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#include <video/platform_lcd.h>
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#include <linux/backlight.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 <asm/mach/map.h>
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#include <mach/hardware.h>
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#include <mach/common.h>
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#include <mach/iomux-mx51.h>
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#include "devices-imx51.h"
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static iomux_v3_cfg_t eukrea_mbimxsd51_pads[] = {
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/* LED */
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MX51_PAD_NANDF_D10__GPIO3_30,
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/* SWITCH */
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NEW_PAD_CTRL(MX51_PAD_NANDF_D9__GPIO3_31, PAD_CTL_PUS_22K_UP |
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PAD_CTL_PKE | PAD_CTL_SRE_FAST |
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PAD_CTL_DSE_HIGH | PAD_CTL_PUE | PAD_CTL_HYS),
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/* UART2 */
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MX51_PAD_UART2_RXD__UART2_RXD,
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MX51_PAD_UART2_TXD__UART2_TXD,
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/* UART 3 */
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MX51_PAD_UART3_RXD__UART3_RXD,
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MX51_PAD_UART3_TXD__UART3_TXD,
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MX51_PAD_KEY_COL4__UART3_RTS,
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MX51_PAD_KEY_COL5__UART3_CTS,
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/* SD */
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MX51_PAD_SD1_CMD__SD1_CMD,
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MX51_PAD_SD1_CLK__SD1_CLK,
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MX51_PAD_SD1_DATA0__SD1_DATA0,
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MX51_PAD_SD1_DATA1__SD1_DATA1,
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MX51_PAD_SD1_DATA2__SD1_DATA2,
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MX51_PAD_SD1_DATA3__SD1_DATA3,
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/* SD1 CD */
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NEW_PAD_CTRL(MX51_PAD_GPIO1_0__SD1_CD, PAD_CTL_PUS_22K_UP |
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PAD_CTL_PKE | PAD_CTL_SRE_FAST |
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PAD_CTL_DSE_HIGH | PAD_CTL_PUE | PAD_CTL_HYS),
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/* SSI */
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MX51_PAD_AUD3_BB_TXD__AUD3_TXD,
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MX51_PAD_AUD3_BB_RXD__AUD3_RXD,
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MX51_PAD_AUD3_BB_CK__AUD3_TXC,
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MX51_PAD_AUD3_BB_FS__AUD3_TXFS,
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/* LCD Backlight */
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MX51_PAD_DI1_D1_CS__GPIO3_4,
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/* LCD RST */
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MX51_PAD_CSI1_D9__GPIO3_13,
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};
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#define GPIO_LED1 IMX_GPIO_NR(3, 30)
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#define GPIO_SWITCH1 IMX_GPIO_NR(3, 31)
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#define GPIO_LCDRST IMX_GPIO_NR(3, 13)
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#define GPIO_LCDBL IMX_GPIO_NR(3, 4)
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static void eukrea_mbimxsd51_lcd_power_set(struct plat_lcd_data *pd,
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unsigned int power)
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{
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if (power)
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gpio_direction_output(GPIO_LCDRST, 1);
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else
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gpio_direction_output(GPIO_LCDRST, 0);
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}
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static struct plat_lcd_data eukrea_mbimxsd51_lcd_power_data = {
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.set_power = eukrea_mbimxsd51_lcd_power_set,
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};
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static struct platform_device eukrea_mbimxsd51_lcd_powerdev = {
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.name = "platform-lcd",
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.dev.platform_data = &eukrea_mbimxsd51_lcd_power_data,
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};
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static void eukrea_mbimxsd51_bl_set_intensity(int intensity)
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{
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if (intensity)
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gpio_direction_output(GPIO_LCDBL, 1);
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else
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gpio_direction_output(GPIO_LCDBL, 0);
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}
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static struct generic_bl_info eukrea_mbimxsd51_bl_info = {
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.name = "eukrea_mbimxsd51-bl",
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.max_intensity = 0xff,
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.default_intensity = 0xff,
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.set_bl_intensity = eukrea_mbimxsd51_bl_set_intensity,
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};
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static struct platform_device eukrea_mbimxsd51_bl_dev = {
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.name = "generic-bl",
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.id = 1,
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.dev = {
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.platform_data = &eukrea_mbimxsd51_bl_info,
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},
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};
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static const struct gpio_led eukrea_mbimxsd51_leds[] __initconst = {
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{
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.name = "led1",
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.default_trigger = "heartbeat",
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.active_low = 1,
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.gpio = GPIO_LED1,
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},
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};
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static const struct gpio_led_platform_data
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eukrea_mbimxsd51_led_info __initconst = {
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.leds = eukrea_mbimxsd51_leds,
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.num_leds = ARRAY_SIZE(eukrea_mbimxsd51_leds),
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};
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static struct gpio_keys_button eukrea_mbimxsd51_gpio_buttons[] = {
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{
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.gpio = GPIO_SWITCH1,
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.code = BTN_0,
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.desc = "BP1",
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.active_low = 1,
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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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eukrea_mbimxsd51_button_data __initconst = {
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.buttons = eukrea_mbimxsd51_gpio_buttons,
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.nbuttons = ARRAY_SIZE(eukrea_mbimxsd51_gpio_buttons),
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};
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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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static struct i2c_board_info eukrea_mbimxsd51_i2c_devices[] = {
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{
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I2C_BOARD_INFO("tlv320aic23", 0x1a),
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},
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};
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static const
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struct imx_ssi_platform_data eukrea_mbimxsd51_ssi_pdata __initconst = {
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.flags = IMX_SSI_SYN | IMX_SSI_NET | IMX_SSI_USE_I2S_SLAVE,
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};
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static int screen_type;
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static int __init eukrea_mbimxsd51_screen_type(char *options)
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{
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if (!strcmp(options, "dvi"))
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screen_type = 1;
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else if (!strcmp(options, "tft"))
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screen_type = 0;
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return 0;
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}
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__setup("screen_type=", eukrea_mbimxsd51_screen_type);
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/*
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* system init for baseboard usage. Will be called by cpuimx51sd init.
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*
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* Add platform devices present on this baseboard and init
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* them from CPU side as far as required to use them later on
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*/
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void __init eukrea_mbimxsd51_baseboard_init(void)
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{
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if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd51_pads,
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ARRAY_SIZE(eukrea_mbimxsd51_pads)))
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printk(KERN_ERR "error setting mbimxsd pads !\n");
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imx51_add_imx_uart(1, NULL);
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imx51_add_imx_uart(2, &uart_pdata);
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imx51_add_sdhci_esdhc_imx(0, NULL);
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imx51_add_imx_ssi(0, &eukrea_mbimxsd51_ssi_pdata);
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gpio_request(GPIO_LED1, "LED1");
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gpio_direction_output(GPIO_LED1, 1);
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gpio_free(GPIO_LED1);
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gpio_request(GPIO_SWITCH1, "SWITCH1");
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gpio_direction_input(GPIO_SWITCH1);
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gpio_free(GPIO_SWITCH1);
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gpio_request(GPIO_LCDRST, "LCDRST");
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gpio_direction_output(GPIO_LCDRST, 0);
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gpio_request(GPIO_LCDBL, "LCDBL");
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gpio_direction_output(GPIO_LCDBL, 0);
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if (!screen_type) {
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platform_device_register(&eukrea_mbimxsd51_bl_dev);
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platform_device_register(&eukrea_mbimxsd51_lcd_powerdev);
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} else {
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gpio_free(GPIO_LCDRST);
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gpio_free(GPIO_LCDBL);
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}
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i2c_register_board_info(0, eukrea_mbimxsd51_i2c_devices,
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ARRAY_SIZE(eukrea_mbimxsd51_i2c_devices));
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gpio_led_register_device(-1, &eukrea_mbimxsd51_led_info);
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imx_add_gpio_keys(&eukrea_mbimxsd51_button_data);
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imx_add_platform_device("eukrea_tlv320", 0, NULL, 0, NULL, 0);
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}
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