mx31lilly-db.c
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/*
* LILLY-1131 development board support
*
* Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
*
* based on code for other MX31 boards,
*
* Copyright 2005-2007 Freescale Semiconductor
* Copyright (c) 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
* Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
*
* 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.
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include "board-mx31lilly.h"
#include "common.h"
#include "devices-imx31.h"
#include "hardware.h"
#include "iomux-mx3.h"
/*
* This file contains board-specific initialization routines for the
* LILLY-1131 development board. If you design an own baseboard for the
* module, use this file as base for support code.
*/
static unsigned int lilly_db_board_pins[] __initdata = {
MX31_PIN_CTS1__CTS1,
MX31_PIN_RTS1__RTS1,
MX31_PIN_TXD1__TXD1,
MX31_PIN_RXD1__RXD1,
MX31_PIN_CTS2__CTS2,
MX31_PIN_RTS2__RTS2,
MX31_PIN_TXD2__TXD2,
MX31_PIN_RXD2__RXD2,
MX31_PIN_CSPI3_MOSI__RXD3,
MX31_PIN_CSPI3_MISO__TXD3,
MX31_PIN_CSPI3_SCLK__RTS3,
MX31_PIN_CSPI3_SPI_RDY__CTS3,
MX31_PIN_SD1_DATA3__SD1_DATA3,
MX31_PIN_SD1_DATA2__SD1_DATA2,
MX31_PIN_SD1_DATA1__SD1_DATA1,
MX31_PIN_SD1_DATA0__SD1_DATA0,
MX31_PIN_SD1_CLK__SD1_CLK,
MX31_PIN_SD1_CMD__SD1_CMD,
MX31_PIN_LD0__LD0,
MX31_PIN_LD1__LD1,
MX31_PIN_LD2__LD2,
MX31_PIN_LD3__LD3,
MX31_PIN_LD4__LD4,
MX31_PIN_LD5__LD5,
MX31_PIN_LD6__LD6,
MX31_PIN_LD7__LD7,
MX31_PIN_LD8__LD8,
MX31_PIN_LD9__LD9,
MX31_PIN_LD10__LD10,
MX31_PIN_LD11__LD11,
MX31_PIN_LD12__LD12,
MX31_PIN_LD13__LD13,
MX31_PIN_LD14__LD14,
MX31_PIN_LD15__LD15,
MX31_PIN_LD16__LD16,
MX31_PIN_LD17__LD17,
MX31_PIN_VSYNC3__VSYNC3,
MX31_PIN_HSYNC__HSYNC,
MX31_PIN_FPSHIFT__FPSHIFT,
MX31_PIN_DRDY0__DRDY0,
MX31_PIN_CONTRAST__CONTRAST,
};
/* UART */
static const struct imxuart_platform_data uart_pdata __initconst = {
.flags = IMXUART_HAVE_RTSCTS,
};
/* MMC support */
static int mxc_mmc1_get_ro(struct device *dev)
{
return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_LCS0));
}
static int gpio_det, gpio_wp;
#define MMC_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
static int mxc_mmc1_init(struct device *dev,
irq_handler_t detect_irq, void *data)
{
int ret;
gpio_det = IOMUX_TO_GPIO(MX31_PIN_GPIO1_1);
gpio_wp = IOMUX_TO_GPIO(MX31_PIN_LCS0);
mxc_iomux_set_pad(MX31_PIN_SD1_DATA0, MMC_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_SD1_DATA1, MMC_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_SD1_DATA2, MMC_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_SD1_DATA3, MMC_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_SD1_CLK, MMC_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_SD1_CMD, MMC_PAD_CFG);
ret = gpio_request(gpio_det, "MMC detect");
if (ret)
return ret;
ret = gpio_request(gpio_wp, "MMC w/p");
if (ret)
goto exit_free_det;
gpio_direction_input(gpio_det);
gpio_direction_input(gpio_wp);
ret = request_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1)),
detect_irq, IRQF_TRIGGER_FALLING,
"MMC detect", data);
if (ret)
goto exit_free_wp;
return 0;
exit_free_wp:
gpio_free(gpio_wp);
exit_free_det:
gpio_free(gpio_det);
return ret;
}
static void mxc_mmc1_exit(struct device *dev, void *data)
{
gpio_free(gpio_det);
gpio_free(gpio_wp);
free_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1)), data);
}
static const struct imxmmc_platform_data mmc_pdata __initconst = {
.get_ro = mxc_mmc1_get_ro,
.init = mxc_mmc1_init,
.exit = mxc_mmc1_exit,
};
/* Framebuffer support */
static const struct fb_videomode fb_modedb = {
/* 640x480 TFT panel (IPS-056T) */
.name = "CRT-VGA",
.refresh = 64,
.xres = 640,
.yres = 480,
.pixclock = 30000,
.left_margin = 200,
.right_margin = 2,
.upper_margin = 2,
.lower_margin = 2,
.hsync_len = 3,
.vsync_len = 1,
.sync = FB_SYNC_VERT_HIGH_ACT | FB_SYNC_OE_ACT_HIGH,
.vmode = FB_VMODE_NONINTERLACED,
.flag = 0,
};
static struct mx3fb_platform_data fb_pdata __initdata = {
.name = "CRT-VGA",
.mode = &fb_modedb,
.num_modes = 1,
};
#define LCD_VCC_EN_GPIO (7)
static void __init mx31lilly_init_fb(void)
{
if (gpio_request(LCD_VCC_EN_GPIO, "LCD enable") != 0) {
printk(KERN_WARNING "unable to request LCD_VCC_EN pin.\n");
return;
}
imx31_add_ipu_core();
imx31_add_mx3_sdc_fb(&fb_pdata);
gpio_direction_output(LCD_VCC_EN_GPIO, 1);
}
void __init mx31lilly_db_init(void)
{
mxc_iomux_setup_multiple_pins(lilly_db_board_pins,
ARRAY_SIZE(lilly_db_board_pins),
"development board pins");
imx31_add_imx_uart0(&uart_pdata);
imx31_add_imx_uart1(&uart_pdata);
imx31_add_imx_uart2(&uart_pdata);
imx31_add_mxc_mmc(0, &mmc_pdata);
mx31lilly_init_fb();
}