351 lines
8.4 KiB
C
351 lines
8.4 KiB
C
/*
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* Copyright (C) 2009-2010 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/gpio.h>
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#include <linux/irq.h>
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#include <linux/platform_device.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/ads7846.h>
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#include <linux/backlight.h>
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#include <video/platform_lcd.h>
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#include <asm/mach/arch.h>
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#include <mach/common.h>
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#include <mach/iomux-mx27.h>
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#include <mach/hardware.h>
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#include "devices-imx27.h"
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static const int eukrea_mbimx27_pins[] __initconst = {
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/* UART2 */
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PE3_PF_UART2_CTS,
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PE4_PF_UART2_RTS,
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PE6_PF_UART2_TXD,
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PE7_PF_UART2_RXD,
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/* UART3 */
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PE8_PF_UART3_TXD,
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PE9_PF_UART3_RXD,
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PE10_PF_UART3_CTS,
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PE11_PF_UART3_RTS,
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/* UART4 */
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#if !defined(MACH_EUKREA_CPUIMX27_USEUART4)
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PB26_AF_UART4_RTS,
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PB28_AF_UART4_TXD,
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PB29_AF_UART4_CTS,
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PB31_AF_UART4_RXD,
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#endif
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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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/* display */
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PA5_PF_LSCLK,
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PA6_PF_LD0,
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PA7_PF_LD1,
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PA8_PF_LD2,
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PA9_PF_LD3,
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PA10_PF_LD4,
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PA11_PF_LD5,
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PA12_PF_LD6,
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PA13_PF_LD7,
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PA14_PF_LD8,
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PA15_PF_LD9,
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PA16_PF_LD10,
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PA17_PF_LD11,
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PA18_PF_LD12,
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PA19_PF_LD13,
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PA20_PF_LD14,
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PA21_PF_LD15,
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PA22_PF_LD16,
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PA23_PF_LD17,
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PA28_PF_HSYNC,
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PA29_PF_VSYNC,
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PA30_PF_CONTRAST,
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PA31_PF_OE_ACD,
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/* SPI1 */
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PD29_PF_CSPI1_SCLK,
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PD30_PF_CSPI1_MISO,
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PD31_PF_CSPI1_MOSI,
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/* SSI4 */
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#if defined(CONFIG_SND_SOC_EUKREA_TLV320) \
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|| defined(CONFIG_SND_SOC_EUKREA_TLV320_MODULE)
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PC16_PF_SSI4_FS,
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PC17_PF_SSI4_RXD | GPIO_PUEN,
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PC18_PF_SSI4_TXD | GPIO_PUEN,
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PC19_PF_SSI4_CLK,
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#endif
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};
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static const uint32_t eukrea_mbimx27_keymap[] = {
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KEY(0, 0, KEY_UP),
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KEY(0, 1, KEY_DOWN),
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KEY(1, 0, KEY_RIGHT),
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KEY(1, 1, KEY_LEFT),
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};
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static const struct matrix_keymap_data
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eukrea_mbimx27_keymap_data __initconst = {
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.keymap = eukrea_mbimx27_keymap,
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.keymap_size = ARRAY_SIZE(eukrea_mbimx27_keymap),
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};
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static const struct gpio_led eukrea_mbimx27_gpio_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_PORTF | 16,
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},
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{
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.name = "led2",
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.default_trigger = "none",
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.active_low = 1,
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.gpio = GPIO_PORTF | 19,
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},
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};
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static const struct gpio_led_platform_data
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eukrea_mbimx27_gpio_led_info __initconst = {
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.leds = eukrea_mbimx27_gpio_leds,
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.num_leds = ARRAY_SIZE(eukrea_mbimx27_gpio_leds),
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};
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static struct imx_fb_videomode eukrea_mbimx27_modes[] = {
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{
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.mode = {
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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 = 156000,
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.hsync_len = 30,
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.left_margin = 38,
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.right_margin = 20,
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.vsync_len = 3,
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.upper_margin = 15,
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.lower_margin = 4,
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},
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.pcr = 0xFAD08B80,
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.bpp = 16,
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}, {
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.mode = {
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.name = "DVI-VGA",
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.refresh = 60,
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.xres = 640,
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.yres = 480,
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.pixclock = 32000,
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.hsync_len = 1,
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.left_margin = 35,
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.right_margin = 0,
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.vsync_len = 1,
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.upper_margin = 7,
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.lower_margin = 0,
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},
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.pcr = 0xFA208B80,
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.bpp = 16,
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}, {
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.mode = {
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.name = "DVI-SVGA",
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.refresh = 60,
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.xres = 800,
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.yres = 600,
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.pixclock = 25000,
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.hsync_len = 1,
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.left_margin = 35,
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.right_margin = 0,
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.vsync_len = 1,
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.upper_margin = 7,
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.lower_margin = 0,
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},
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.pcr = 0xFA208B80,
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.bpp = 16,
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},
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};
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static const struct imx_fb_platform_data eukrea_mbimx27_fb_data __initconst = {
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.mode = eukrea_mbimx27_modes,
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.num_modes = ARRAY_SIZE(eukrea_mbimx27_modes),
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.pwmr = 0x00A903FF,
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.lscr1 = 0x00120300,
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.dmacr = 0x00040060,
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};
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static void eukrea_mbimx27_bl_set_intensity(int intensity)
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{
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if (intensity)
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gpio_direction_output(GPIO_PORTE | 5, 1);
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else
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gpio_direction_output(GPIO_PORTE | 5, 0);
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}
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static struct generic_bl_info eukrea_mbimx27_bl_info = {
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.name = "eukrea_mbimx27-bl",
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.max_intensity = 0xff,
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.default_intensity = 0xff,
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.set_bl_intensity = eukrea_mbimx27_bl_set_intensity,
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};
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static struct platform_device eukrea_mbimx27_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_mbimx27_bl_info,
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},
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};
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static void eukrea_mbimx27_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_PORTA | 25, 1);
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else
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gpio_direction_output(GPIO_PORTA | 25, 0);
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}
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static struct plat_lcd_data eukrea_mbimx27_lcd_power_data = {
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.set_power = eukrea_mbimx27_lcd_power_set,
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};
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static struct platform_device eukrea_mbimx27_lcd_powerdev = {
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.name = "platform-lcd",
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.dev.platform_data = &eukrea_mbimx27_lcd_power_data,
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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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#define ADS7846_PENDOWN (GPIO_PORTD | 25)
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static void __maybe_unused ads7846_dev_init(void)
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{
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if (gpio_request(ADS7846_PENDOWN, "ADS7846 pendown") < 0) {
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printk(KERN_ERR "can't get ads746 pen down GPIO\n");
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return;
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}
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gpio_direction_input(ADS7846_PENDOWN);
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}
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static int ads7846_get_pendown_state(void)
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{
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return !gpio_get_value(ADS7846_PENDOWN);
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}
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static struct ads7846_platform_data ads7846_config __initdata = {
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.get_pendown_state = ads7846_get_pendown_state,
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.keep_vref_on = 1,
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};
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static struct spi_board_info __maybe_unused
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eukrea_mbimx27_spi_board_info[] __initdata = {
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[0] = {
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.modalias = "ads7846",
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.bus_num = 0,
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.chip_select = 0,
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.max_speed_hz = 1500000,
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.irq = IRQ_GPIOD(25),
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.platform_data = &ads7846_config,
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.mode = SPI_MODE_2,
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},
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};
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static int eukrea_mbimx27_spi_cs[] = {GPIO_PORTD | 28};
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static const struct spi_imx_master eukrea_mbimx27_spi0_data __initconst = {
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.chipselect = eukrea_mbimx27_spi_cs,
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.num_chipselect = ARRAY_SIZE(eukrea_mbimx27_spi_cs),
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};
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static struct i2c_board_info eukrea_mbimx27_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 struct imxmmc_platform_data sdhc_pdata __initconst = {
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.dat3_card_detect = 1,
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};
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static const
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struct imx_ssi_platform_data eukrea_mbimx27_ssi_pdata __initconst = {
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.flags = IMX_SSI_DMA | 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 cpuimx27 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_mbimx27_baseboard_init(void)
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{
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mxc_gpio_setup_multiple_pins(eukrea_mbimx27_pins,
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ARRAY_SIZE(eukrea_mbimx27_pins), "MBIMX27");
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imx27_add_imx_uart1(&uart_pdata);
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imx27_add_imx_uart2(&uart_pdata);
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#if !defined(MACH_EUKREA_CPUIMX27_USEUART4)
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imx27_add_imx_uart3(&uart_pdata);
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#endif
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imx27_add_imx_fb(&eukrea_mbimx27_fb_data);
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imx27_add_mxc_mmc(0, &sdhc_pdata);
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i2c_register_board_info(0, eukrea_mbimx27_i2c_devices,
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ARRAY_SIZE(eukrea_mbimx27_i2c_devices));
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imx27_add_imx_ssi(0, &eukrea_mbimx27_ssi_pdata);
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#if defined(CONFIG_TOUCHSCREEN_ADS7846) \
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|| defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
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/* ADS7846 Touchscreen controller init */
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mxc_gpio_mode(GPIO_PORTD | 25 | GPIO_GPIO | GPIO_IN);
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ads7846_dev_init();
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#endif
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/* SPI_CS0 init */
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mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
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imx27_add_spi_imx0(&eukrea_mbimx27_spi0_data);
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spi_register_board_info(eukrea_mbimx27_spi_board_info,
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ARRAY_SIZE(eukrea_mbimx27_spi_board_info));
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/* Leds configuration */
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mxc_gpio_mode(GPIO_PORTF | 16 | GPIO_GPIO | GPIO_OUT);
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mxc_gpio_mode(GPIO_PORTF | 19 | GPIO_GPIO | GPIO_OUT);
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/* Backlight */
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mxc_gpio_mode(GPIO_PORTE | 5 | GPIO_GPIO | GPIO_OUT);
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gpio_request(GPIO_PORTE | 5, "backlight");
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platform_device_register(&eukrea_mbimx27_bl_dev);
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/* LCD Reset */
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mxc_gpio_mode(GPIO_PORTA | 25 | GPIO_GPIO | GPIO_OUT);
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gpio_request(GPIO_PORTA | 25, "lcd_enable");
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platform_device_register(&eukrea_mbimx27_lcd_powerdev);
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imx27_add_imx_keypad(&eukrea_mbimx27_keymap_data);
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gpio_led_register_device(-1, &eukrea_mbimx27_gpio_led_info);
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}
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