diff options
Diffstat (limited to 'kernel/arch/arm/mach-imx/mx31lilly-db.c')
| -rw-r--r-- | kernel/arch/arm/mach-imx/mx31lilly-db.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-imx/mx31lilly-db.c b/kernel/arch/arm/mach-imx/mx31lilly-db.c new file mode 100644 index 000000000..649fe49ce --- /dev/null +++ b/kernel/arch/arm/mach-imx/mx31lilly-db.c @@ -0,0 +1,211 @@ +/* + * 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(); +} |