/*
* Copyright (C) 2009-2010 Eric Benard - eric@eukrea.com
*
* Based on pcm970-baseboard.c which is :
* Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include <linux/gpio.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/backlight.h>
#include <video/platform_lcd.h>
#include <linux/input/matrix_keypad.h>
#include <asm/mach/arch.h>
#include <mach/common.h>
#include <mach/iomux-mx27.h>
#include <mach/imxfb.h>
#include <mach/hardware.h>
#include <mach/mmc.h>
#include <mach/spi.h>
#include <mach/ssi.h>
#include <mach/audmux.h>
#include "devices-imx27.h"
#include "devices.h"
static int eukrea_mbimx27_pins[] = {
/* UART2 */
PE3_PF_UART2_CTS,
PE4_PF_UART2_RTS,
PE6_PF_UART2_TXD,
PE7_PF_UART2_RXD,
/* UART3 */
PE8_PF_UART3_TXD,
PE9_PF_UART3_RXD,
PE10_PF_UART3_CTS,
PE11_PF_UART3_RTS,
/* UART4 */
#if !defined(MACH_EUKREA_CPUIMX27_USEUART4)
PB26_AF_UART4_RTS,
PB28_AF_UART4_TXD,
PB29_AF_UART4_CTS,
PB31_AF_UART4_RXD,
#endif
/* SDHC1*/
PE18_PF_SD1_D0,
PE19_PF_SD1_D1,
PE20_PF_SD1_D2,
PE21_PF_SD1_D3,
PE22_PF_SD1_CMD,
PE23_PF_SD1_CLK,
/* display */
PA5_PF_LSCLK,
PA6_PF_LD0,
PA7_PF_LD1,
PA8_PF_LD2,
PA9_PF_LD3,
PA10_PF_LD4,
PA11_PF_LD5,
PA12_PF_LD6,
PA13_PF_LD7,
PA14_PF_LD8,
PA15_PF_LD9,
PA16_PF_LD10,
PA17_PF_LD11,
PA18_PF_LD12,
PA19_PF_LD13,
PA20_PF_LD14,
PA21_PF_LD15,
PA22_PF_LD16,
PA23_PF_LD17,
PA28_PF_HSYNC,
PA29_PF_VSYNC,
PA30_PF_CONTRAST,
PA31_PF_OE_ACD,
/* SPI1 */
PD29_PF_CSPI1_SCLK,
PD30_PF_CSPI1_MISO,
PD31_PF_CSPI1_MOSI,
/* SSI4 */
#if defined(CONFIG_SND_SOC_EUKREA_TLV320) \
|| defined(CONFIG_SND_SOC_EUKREA_TLV320_MODULE)
PC16_PF_SSI4_FS,
PC17_PF_SSI4_RXD | GPIO_PUEN,
PC18_PF_SSI4_TXD | GPIO_PUEN,
PC19_PF_SSI4_CLK,
#endif
};
static const uint32_t eukrea_mbimx27_keymap[] = {
KEY(0, 0, KEY_UP),
KEY(0, 1, KEY_DOWN),
KEY(1, 0, KEY_RIGHT),
KEY(1, 1, KEY_LEFT),
};
static struct matrix_keymap_data eukrea_mbimx27_keymap_data = {
.keymap = eukrea_mbimx27_keymap,
.keymap_size = ARRAY_SIZE(eukrea_mbimx27_keymap),
};
static struct gpio_led gpio_leds[] = {
{
.name = "led1",
.default_trigger = "heartbeat",
.active_low = 1,
.gpio = GPIO_PORTF | 16,
},
{
.name = "led2",
.default_trigger = "none",
.active_low = 1,
.gpio = GPIO_PORTF | 19,
},
};
static struct gpio_led_platform_data gpio_led_info = {
.leds = gpio_leds,
.num_leds = ARRAY_SIZE(gpio_leds),
};
static struct platform_device leds_gpio = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &gpio_led_info,
},
};
static struct imx_fb_videomode eukrea_mbimx27_modes[] = {
{
.mode = {
.name = "CMO-QVGA",
.refresh = 60,
.xres = 320,
.yres = 240,
.pixclock = 156000,
.hsync_len = 30,
.left_margin = 38,
.right_margin = 20,
.vsync_len = 3,
.upper_margin = 15,
.lower_margin = 4,
},
.pcr = 0xFAD08B80,
.bpp = 16,
}, {
.mode = {
.name = "DVI-VGA",
.refresh = 60,
.xres = 640,
.yres = 480,
.pixclock = 32000,
.hsync_len = 1,
.left_margin = 35,
.right_margin = 0,
.vsync_len = 1,
.upper_margin = 7,
.lower_margin = 0,
},
.pcr = 0xFA208B80,
.bpp = 16,
}, {
.mode = {
.name = "DVI-SVGA",
.refresh = 60,
.xres = 800,
.yres = 600,
.pixclock = 25000,
.hsync_len = 1,
.left_margin = 35,
.right_margin = 0,
.vsync_len = 1,
.upper_margin = 7,
.lower_margin = 0,
},
.pcr = 0xFA208B80,
.bpp = 16,
},
};
static struct imx_fb_platform_data eukrea_mbimx27_fb_data = {
.mode = eukrea_mbimx27_modes,
.num_modes = ARRAY_SIZE(eukrea_mbimx27_modes),
.pwmr = 0x00A903FF,
.lscr1 = 0x00120300,
.dmacr = 0x00040060,
};
static void eukrea_mbimx27_bl_set_intensity(int intensity)
{
if (intensity)
gpio_direction_output(GPIO_PORTE | 5, 1);
else
gpio_direction_output(GPIO_PORTE | 5, 0);
}
static struct generic_bl_info eukrea_mbimx27_bl_info = {
.name = "eukrea_mbimx27-bl",
.max_intensity = 0xff,
.default_intensity = 0xff,
.set_bl_intensity = eukrea_mbimx27_bl_set_intensity,
};
static struct platform_device eukrea_mbimx27_bl_dev = {
.name = "generic-bl",
.id = 1,
.dev = {
.platform_data = &eukrea_mbimx27_bl_info,
},
};
static void eukrea_mbimx27_lcd_power_set(struct plat_lcd_data *pd,
unsigned int power)
{
if (power)
gpio_direction_output(GPIO_PORTA | 25, 1);
else
gpio_direction_output(GPIO_PORTA | 25, 0);
}
static struct plat_lcd_data eukrea_mbimx27_lcd_power_data = {
.set_power = eukrea_mbimx27_lcd_power_set,
};
static struct platform_device eukrea_mbimx27_lcd_powerdev = {
.name = "platform-lcd",
.dev.platform_data = &eukrea_mbimx27_lcd_power_data,
};
static const struct imxuart_platform_data uart_pdata __initconst = {
.flags = IMXUART_HAVE_RTSCTS,
};
#if defined(CONFIG_TOUCHSCREEN_ADS7846) \
|| defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
#define ADS7846_PENDOWN (GPIO_PORTD | 25)
static void ads7846_dev_init(void)
{
if (gpio_request(ADS7846_PENDOWN, "ADS7846 pendown") < 0) {
printk(KERN_ERR "can't get ads746 pen down GPIO\n");
return;
}
gpio_direction_input(ADS7846_PENDOWN);
}
static int ads7846_get_pendown_state(void)
{
return !gpio_get_value(ADS7846_PENDOWN);
}
static struct ads7846_platform_data ads7846_config __initdata = {
.get_pendown_state = ads7846_get_pendown_state,
.keep_vref_on = 1,
};
#endif
#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
static struct spi_board_info eukrea_mbimx27_spi_board_info[] __initdata = {
[0] = {
.modalias = "ads7846",
.bus_num = 0,
.chip_select = 0,
.max_speed_hz = 1500000,
.irq = IRQ_GPIOD(25),
.platform_data = &ads7846_config,
.mode = SPI_MODE_2,
},
};
static int eukrea_mbimx27_spi_cs[] = {GPIO_PORTD | 28};
static const struct spi_imx_master eukrea_mbimx27_spi0_data __initconst = {
.chipselect = eukrea_mbimx27_spi_cs,
.num_chipselect = ARRAY_SIZE(eukrea_mbimx27_spi_cs),
};
#endif
static struct i2c_board_info eukrea_mbimx27_i2c_devices[] = {
{
I2C_BOARD_INFO("tlv320aic23", 0x1a),
},
};
static struct platform_device *platform_devices[] __initdata = {
&leds_gpio,
};
static struct imxmmc_platform_data sdhc_pdata = {
.dat3_card_detect = 1,
};
struct imx_ssi_platform_data eukrea_mbimx27_ssi_pdata = {
.flags = IMX_SSI_DMA | IMX_SSI_USE_I2S_SLAVE,
};
/*
* system init for baseboard usage. Will be called by cpuimx27 init.
*
* Add platform devices present on this baseboard and init
* them from CPU side as far as required to use them later on
*/
void __init eukrea_mbimx27_baseboard_init(void)
{
mxc_gpio_setup_multiple_pins(eukrea_mbimx27_pins,
ARRAY_SIZE(eukrea_mbimx27_pins), "MBIMX27");
#if defined(CONFIG_SND_SOC_EUKREA_TLV320) \
|| defined(CONFIG_SND_SOC_EUKREA_TLV320_MODULE)
/* SSI unit master I2S codec connected to SSI_PINS_4*/
mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
MXC_AUDMUX_V1_PCR_SYN |
MXC_AUDMUX_V1_PCR_TFSDIR |
MXC_AUDMUX_V1_PCR_TCLKDIR |
MXC_AUDMUX_V1_PCR_RFSDIR |
MXC_AUDMUX_V1_PCR_RCLKDIR |
MXC_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
MXC_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4)
);
mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4,
MXC_AUDMUX_V1_PCR_SYN |
MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
);
#endif
imx27_add_imx_uart1(&uart_pdata);
imx27_add_imx_uart2(&uart_pdata);
#if !defined(MACH_EUKREA_CPUIMX27_USEUART4)
imx27_add_imx_uart3(&uart_pdata);
#endif
mxc_register_device(&mxc_fb_device, &eukrea_mbimx27_fb_data);
mxc_register_device(&mxc_sdhc_device0, &sdhc_pdata);
i2c_register_board_info(0, eukrea_mbimx27_i2c_devices,
ARRAY_SIZE(eukrea_mbimx27_i2c_devices));
mxc_register_device(&imx_ssi_device0, &eukrea_mbimx27_ssi_pdata);
#if defined(CONFIG_TOUCHSCREEN_ADS7846) \
|| defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
/* ADS7846 Touchscreen controller init */
mxc_gpio_mode(GPIO_PORTD | 25 | GPIO_GPIO | GPIO_IN);
ads7846_dev_init();
#endif
#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
/* SPI_CS0 init */
mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
imx27_add_spi_imx0(&eukrea_mbimx27_spi0_data);
spi_register_board_info(eukrea_mbimx27_spi_board_info,
ARRAY_SIZE(eukrea_mbimx27_spi_board_info));
#endif
/* Leds configuration */
mxc_gpio_mode(GPIO_PORTF | 16 | GPIO_GPIO | GPIO_OUT);
mxc_gpio_mode(GPIO_PORTF | 19 | GPIO_GPIO | GPIO_OUT);
/* Backlight */
mxc_gpio_mode(GPIO_PORTE | 5 | GPIO_GPIO | GPIO_OUT);
gpio_request(GPIO_PORTE | 5, "backlight");
platform_device_register(&eukrea_mbimx27_bl_dev);
/* LCD Reset */
mxc_gpio_mode(GPIO_PORTA | 25 | GPIO_GPIO | GPIO_OUT);
gpio_request(GPIO_PORTA | 25, "lcd_enable");
platform_device_register(&eukrea_mbimx27_lcd_powerdev);
mxc_register_device(&imx_kpp_device, &eukrea_mbimx27_keymap_data);
platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
}
