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7880dcb259
The change moves some of peripheral registrations and initializations (all peripherals dependent on GPIOs) from .init_machine to .init_late level, this allows to safely shift the shared GPIO controller driver initialization level after init level of i.MX IOMUXC driver. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
192 lines
4.7 KiB
C
192 lines
4.7 KiB
C
/*
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* LILLY-1131 development board support
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*
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* Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
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*
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* based on code for other MX31 boards,
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*
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* Copyright 2005-2007 Freescale Semiconductor
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* Copyright (c) 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
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* Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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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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#include <linux/kernel.h>
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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/platform_device.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/map.h>
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#include "board-mx31lilly.h"
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#include "common.h"
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#include "devices-imx31.h"
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#include "hardware.h"
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#include "iomux-mx3.h"
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/*
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* This file contains board-specific initialization routines for the
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* LILLY-1131 development board. If you design an own baseboard for the
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* module, use this file as base for support code.
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*/
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static unsigned int lilly_db_board_pins[] __initdata = {
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MX31_PIN_SD1_DATA3__SD1_DATA3,
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MX31_PIN_SD1_DATA2__SD1_DATA2,
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MX31_PIN_SD1_DATA1__SD1_DATA1,
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MX31_PIN_SD1_DATA0__SD1_DATA0,
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MX31_PIN_SD1_CLK__SD1_CLK,
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MX31_PIN_SD1_CMD__SD1_CMD,
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MX31_PIN_LD0__LD0,
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MX31_PIN_LD1__LD1,
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MX31_PIN_LD2__LD2,
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MX31_PIN_LD3__LD3,
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MX31_PIN_LD4__LD4,
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MX31_PIN_LD5__LD5,
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MX31_PIN_LD6__LD6,
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MX31_PIN_LD7__LD7,
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MX31_PIN_LD8__LD8,
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MX31_PIN_LD9__LD9,
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MX31_PIN_LD10__LD10,
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MX31_PIN_LD11__LD11,
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MX31_PIN_LD12__LD12,
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MX31_PIN_LD13__LD13,
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MX31_PIN_LD14__LD14,
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MX31_PIN_LD15__LD15,
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MX31_PIN_LD16__LD16,
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MX31_PIN_LD17__LD17,
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MX31_PIN_VSYNC3__VSYNC3,
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MX31_PIN_HSYNC__HSYNC,
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MX31_PIN_FPSHIFT__FPSHIFT,
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MX31_PIN_DRDY0__DRDY0,
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MX31_PIN_CONTRAST__CONTRAST,
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};
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/* MMC support */
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static int mxc_mmc1_get_ro(struct device *dev)
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{
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return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_LCS0));
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}
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static int gpio_det, gpio_wp;
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#define MMC_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
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PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
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static int mxc_mmc1_init(struct device *dev,
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irq_handler_t detect_irq, void *data)
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{
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int ret;
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gpio_det = IOMUX_TO_GPIO(MX31_PIN_GPIO1_1);
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gpio_wp = IOMUX_TO_GPIO(MX31_PIN_LCS0);
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mxc_iomux_set_pad(MX31_PIN_SD1_DATA0, MMC_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_SD1_DATA1, MMC_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_SD1_DATA2, MMC_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_SD1_DATA3, MMC_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_SD1_CLK, MMC_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_SD1_CMD, MMC_PAD_CFG);
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ret = gpio_request(gpio_det, "MMC detect");
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if (ret)
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return ret;
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ret = gpio_request(gpio_wp, "MMC w/p");
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if (ret)
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goto exit_free_det;
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gpio_direction_input(gpio_det);
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gpio_direction_input(gpio_wp);
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ret = request_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1)),
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detect_irq, IRQF_TRIGGER_FALLING,
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"MMC detect", data);
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if (ret)
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goto exit_free_wp;
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return 0;
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exit_free_wp:
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gpio_free(gpio_wp);
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exit_free_det:
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gpio_free(gpio_det);
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return ret;
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}
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static void mxc_mmc1_exit(struct device *dev, void *data)
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{
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gpio_free(gpio_det);
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gpio_free(gpio_wp);
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free_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1)), data);
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}
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static const struct imxmmc_platform_data mmc_pdata __initconst = {
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.get_ro = mxc_mmc1_get_ro,
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.init = mxc_mmc1_init,
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.exit = mxc_mmc1_exit,
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};
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/* Framebuffer support */
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static const struct fb_videomode fb_modedb = {
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/* 640x480 TFT panel (IPS-056T) */
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.name = "CRT-VGA",
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.refresh = 64,
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.xres = 640,
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.yres = 480,
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.pixclock = 30000,
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.left_margin = 200,
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.right_margin = 2,
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.upper_margin = 2,
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.lower_margin = 2,
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.hsync_len = 3,
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.vsync_len = 1,
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.sync = FB_SYNC_VERT_HIGH_ACT | FB_SYNC_OE_ACT_HIGH,
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.vmode = FB_VMODE_NONINTERLACED,
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.flag = 0,
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};
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static struct mx3fb_platform_data fb_pdata __initdata = {
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.name = "CRT-VGA",
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.mode = &fb_modedb,
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.num_modes = 1,
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};
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#define LCD_VCC_EN_GPIO (7)
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static void __init mx31lilly_init_fb(void)
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{
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if (gpio_request(LCD_VCC_EN_GPIO, "LCD enable") != 0) {
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printk(KERN_WARNING "unable to request LCD_VCC_EN pin.\n");
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return;
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}
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imx31_add_ipu_core();
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imx31_add_mx3_sdc_fb(&fb_pdata);
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gpio_direction_output(LCD_VCC_EN_GPIO, 1);
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}
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void __init mx31lilly_db_init(void)
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{
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mxc_iomux_setup_multiple_pins(lilly_db_board_pins,
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ARRAY_SIZE(lilly_db_board_pins),
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"development board pins");
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imx31_add_mxc_mmc(0, &mmc_pdata);
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mx31lilly_init_fb();
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}
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