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21744f193d
* cpuimx35 integrates i.MX35, RAM, NAND, Ethernet, I2C RTC, USB Host, USB OTG and I2C touchscreen controller * mbimxsd provides access to LCD, Audio, LED, Switch button, UART ... Signed-off-by: Eric Bénard <eric@eukrea.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
264 lines
6.8 KiB
C
264 lines
6.8 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/gpio_keys.h>
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#include <linux/input.h>
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#include <video/platform_lcd.h>
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#include <linux/i2c.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/board-eukrea_cpuimx35.h>
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#include <mach/hardware.h>
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#include <mach/common.h>
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#include <mach/imx-uart.h>
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#include <mach/iomux-mx35.h>
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#include <mach/ipu.h>
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#include <mach/mx3fb.h>
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#include <mach/audmux.h>
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#include <mach/ssi.h>
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#include "devices.h"
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static const struct fb_videomode fb_modedb[] = {
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{
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.name = "CMO_QVGA",
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.refresh = 60,
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.xres = 320,
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.yres = 240,
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.pixclock = KHZ2PICOS(6500),
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.left_margin = 68,
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.right_margin = 20,
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.upper_margin = 15,
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.lower_margin = 4,
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.hsync_len = 30,
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.vsync_len = 3,
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.sync = 0,
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.vmode = FB_VMODE_NONINTERLACED,
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.flag = 0,
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},
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};
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static struct ipu_platform_data mx3_ipu_data = {
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.irq_base = MXC_IPU_IRQ_START,
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};
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static struct mx3fb_platform_data mx3fb_pdata = {
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.dma_dev = &mx3_ipu.dev,
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.name = "CMO_QVGA",
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.mode = fb_modedb,
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.num_modes = ARRAY_SIZE(fb_modedb),
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};
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static struct pad_desc eukrea_mbimxsd_pads[] = {
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/* LCD */
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MX35_PAD_LD0__IPU_DISPB_DAT_0,
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MX35_PAD_LD1__IPU_DISPB_DAT_1,
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MX35_PAD_LD2__IPU_DISPB_DAT_2,
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MX35_PAD_LD3__IPU_DISPB_DAT_3,
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MX35_PAD_LD4__IPU_DISPB_DAT_4,
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MX35_PAD_LD5__IPU_DISPB_DAT_5,
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MX35_PAD_LD6__IPU_DISPB_DAT_6,
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MX35_PAD_LD7__IPU_DISPB_DAT_7,
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MX35_PAD_LD8__IPU_DISPB_DAT_8,
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MX35_PAD_LD9__IPU_DISPB_DAT_9,
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MX35_PAD_LD10__IPU_DISPB_DAT_10,
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MX35_PAD_LD11__IPU_DISPB_DAT_11,
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MX35_PAD_LD12__IPU_DISPB_DAT_12,
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MX35_PAD_LD13__IPU_DISPB_DAT_13,
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MX35_PAD_LD14__IPU_DISPB_DAT_14,
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MX35_PAD_LD15__IPU_DISPB_DAT_15,
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MX35_PAD_LD16__IPU_DISPB_DAT_16,
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MX35_PAD_LD17__IPU_DISPB_DAT_17,
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MX35_PAD_D3_HSYNC__IPU_DISPB_D3_HSYNC,
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MX35_PAD_D3_FPSHIFT__IPU_DISPB_D3_CLK,
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MX35_PAD_D3_DRDY__IPU_DISPB_D3_DRDY,
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MX35_PAD_D3_VSYNC__IPU_DISPB_D3_VSYNC,
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/* Backlight */
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MX35_PAD_CONTRAST__IPU_DISPB_CONTR,
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/* LCD_PWR */
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MX35_PAD_D3_CLS__GPIO1_4,
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/* LED */
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MX35_PAD_LD23__GPIO3_29,
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/* SWITCH */
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MX35_PAD_LD19__GPIO3_25,
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/* UART2 */
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MX35_PAD_CTS2__UART2_CTS,
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MX35_PAD_RTS2__UART2_RTS,
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MX35_PAD_TXD2__UART2_TXD_MUX,
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MX35_PAD_RXD2__UART2_RXD_MUX,
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/* I2S */
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MX35_PAD_STXFS4__AUDMUX_AUD4_TXFS,
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MX35_PAD_STXD4__AUDMUX_AUD4_TXD,
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MX35_PAD_SRXD4__AUDMUX_AUD4_RXD,
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MX35_PAD_SCK4__AUDMUX_AUD4_TXC,
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};
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#define GPIO_LED1 (2 * 32 + 29)
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#define GPIO_SWITCH1 (2 * 32 + 25)
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#define GPIO_LCDPWR (4)
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static void eukrea_mbimxsd_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_LCDPWR, 1);
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else
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gpio_direction_output(GPIO_LCDPWR, 0);
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}
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static struct plat_lcd_data eukrea_mbimxsd_lcd_power_data = {
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.set_power = eukrea_mbimxsd_lcd_power_set,
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};
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static struct platform_device eukrea_mbimxsd_lcd_powerdev = {
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.name = "platform-lcd",
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.dev.platform_data = &eukrea_mbimxsd_lcd_power_data,
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};
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static struct gpio_led eukrea_mbimxsd_leds[] = {
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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 struct gpio_led_platform_data eukrea_mbimxsd_led_info = {
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.leds = eukrea_mbimxsd_leds,
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.num_leds = ARRAY_SIZE(eukrea_mbimxsd_leds),
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};
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static struct platform_device eukrea_mbimxsd_leds_gpio = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &eukrea_mbimxsd_led_info,
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},
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};
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static struct gpio_keys_button eukrea_mbimxsd_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 struct gpio_keys_platform_data eukrea_mbimxsd_button_data = {
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.buttons = eukrea_mbimxsd_gpio_buttons,
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.nbuttons = ARRAY_SIZE(eukrea_mbimxsd_gpio_buttons),
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};
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static struct platform_device eukrea_mbimxsd_button_device = {
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.name = "gpio-keys",
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.id = -1,
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.num_resources = 0,
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.dev = {
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.platform_data = &eukrea_mbimxsd_button_data,
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}
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};
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static struct platform_device *platform_devices[] __initdata = {
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&eukrea_mbimxsd_leds_gpio,
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&eukrea_mbimxsd_button_device,
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&eukrea_mbimxsd_lcd_powerdev,
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};
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static struct imxuart_platform_data uart_pdata = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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static struct i2c_board_info eukrea_mbimxsd_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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struct imx_ssi_platform_data eukrea_mbimxsd_ssi_pdata = {
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.flags = IMX_SSI_SYN | IMX_SSI_NET | IMX_SSI_USE_I2S_SLAVE,
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};
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/*
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* system init for baseboard usage. Will be called by cpuimx35 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_mbimxsd_baseboard_init(void)
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{
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if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd_pads,
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ARRAY_SIZE(eukrea_mbimxsd_pads)))
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printk(KERN_ERR "error setting mbimxsd pads !\n");
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#if defined(CONFIG_SND_SOC_EUKREA_TLV320)
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/* SSI unit master I2S codec connected to SSI_AUD4 */
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mxc_audmux_v2_configure_port(0,
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MXC_AUDMUX_V2_PTCR_SYN |
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MXC_AUDMUX_V2_PTCR_TFSDIR |
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MXC_AUDMUX_V2_PTCR_TFSEL(3) |
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MXC_AUDMUX_V2_PTCR_TCLKDIR |
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MXC_AUDMUX_V2_PTCR_TCSEL(3),
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MXC_AUDMUX_V2_PDCR_RXDSEL(3)
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);
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mxc_audmux_v2_configure_port(3,
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MXC_AUDMUX_V2_PTCR_SYN,
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MXC_AUDMUX_V2_PDCR_RXDSEL(0)
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);
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#endif
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mxc_register_device(&mxc_uart_device1, &uart_pdata);
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mxc_register_device(&mx3_ipu, &mx3_ipu_data);
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mxc_register_device(&mx3_fb, &mx3fb_pdata);
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mxc_register_device(&imx_ssi_device0, &eukrea_mbimxsd_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_LCDPWR, "LCDPWR");
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gpio_direction_output(GPIO_LCDPWR, 1);
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gpio_free(GPIO_SWITCH1);
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i2c_register_board_info(0, eukrea_mbimxsd_i2c_devices,
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ARRAY_SIZE(eukrea_mbimxsd_i2c_devices));
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platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
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}
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