189 lines
5.8 KiB
C
189 lines
5.8 KiB
C
/*
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* Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved.
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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/delay.h>
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#include <linux/platform_device.h>
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#include <linux/gpio.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/time.h>
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#include <mach/common.h>
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#include <mach/iomux-mx23.h>
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#include "devices-mx23.h"
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#define MX23EVK_LCD_ENABLE MXS_GPIO_NR(1, 18)
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#define MX23EVK_BL_ENABLE MXS_GPIO_NR(1, 28)
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#define MX23EVK_MMC0_WRITE_PROTECT MXS_GPIO_NR(1, 30)
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#define MX23EVK_MMC0_SLOT_POWER MXS_GPIO_NR(1, 29)
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static const iomux_cfg_t mx23evk_pads[] __initconst = {
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/* duart */
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MX23_PAD_PWM0__DUART_RX | MXS_PAD_CTRL,
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MX23_PAD_PWM1__DUART_TX | MXS_PAD_CTRL,
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/* auart */
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MX23_PAD_AUART1_RX__AUART1_RX | MXS_PAD_CTRL,
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MX23_PAD_AUART1_TX__AUART1_TX | MXS_PAD_CTRL,
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MX23_PAD_AUART1_CTS__AUART1_CTS | MXS_PAD_CTRL,
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MX23_PAD_AUART1_RTS__AUART1_RTS | MXS_PAD_CTRL,
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/* mxsfb (lcdif) */
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MX23_PAD_LCD_D00__LCD_D00 | MXS_PAD_CTRL,
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MX23_PAD_LCD_D01__LCD_D01 | MXS_PAD_CTRL,
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MX23_PAD_LCD_D02__LCD_D02 | MXS_PAD_CTRL,
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MX23_PAD_LCD_D03__LCD_D03 | MXS_PAD_CTRL,
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MX23_PAD_LCD_D04__LCD_D04 | MXS_PAD_CTRL,
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MX23_PAD_LCD_D05__LCD_D05 | MXS_PAD_CTRL,
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MX23_PAD_LCD_D06__LCD_D06 | MXS_PAD_CTRL,
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MX23_PAD_LCD_D07__LCD_D07 | MXS_PAD_CTRL,
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MX23_PAD_LCD_D08__LCD_D08 | MXS_PAD_CTRL,
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MX23_PAD_LCD_D09__LCD_D09 | MXS_PAD_CTRL,
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MX23_PAD_LCD_D10__LCD_D10 | MXS_PAD_CTRL,
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MX23_PAD_LCD_D11__LCD_D11 | MXS_PAD_CTRL,
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MX23_PAD_LCD_D12__LCD_D12 | MXS_PAD_CTRL,
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MX23_PAD_LCD_D13__LCD_D13 | MXS_PAD_CTRL,
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MX23_PAD_LCD_D14__LCD_D14 | MXS_PAD_CTRL,
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MX23_PAD_LCD_D15__LCD_D15 | MXS_PAD_CTRL,
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MX23_PAD_LCD_D16__LCD_D16 | MXS_PAD_CTRL,
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MX23_PAD_LCD_D17__LCD_D17 | MXS_PAD_CTRL,
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MX23_PAD_GPMI_D08__LCD_D18 | MXS_PAD_CTRL,
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MX23_PAD_GPMI_D09__LCD_D19 | MXS_PAD_CTRL,
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MX23_PAD_GPMI_D10__LCD_D20 | MXS_PAD_CTRL,
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MX23_PAD_GPMI_D11__LCD_D21 | MXS_PAD_CTRL,
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MX23_PAD_GPMI_D12__LCD_D22 | MXS_PAD_CTRL,
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MX23_PAD_GPMI_D13__LCD_D23 | MXS_PAD_CTRL,
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MX23_PAD_LCD_VSYNC__LCD_VSYNC | MXS_PAD_CTRL,
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MX23_PAD_LCD_HSYNC__LCD_HSYNC | MXS_PAD_CTRL,
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MX23_PAD_LCD_DOTCK__LCD_DOTCK | MXS_PAD_CTRL,
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MX23_PAD_LCD_ENABLE__LCD_ENABLE | MXS_PAD_CTRL,
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/* LCD panel enable */
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MX23_PAD_LCD_RESET__GPIO_1_18 | MXS_PAD_CTRL,
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/* backlight control */
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MX23_PAD_PWM2__GPIO_1_28 | MXS_PAD_CTRL,
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/* mmc */
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MX23_PAD_SSP1_DATA0__SSP1_DATA0 |
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(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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MX23_PAD_SSP1_DATA1__SSP1_DATA1 |
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(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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MX23_PAD_SSP1_DATA2__SSP1_DATA2 |
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(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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MX23_PAD_SSP1_DATA3__SSP1_DATA3 |
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(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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MX23_PAD_GPMI_D08__SSP1_DATA4 |
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(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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MX23_PAD_GPMI_D09__SSP1_DATA5 |
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(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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MX23_PAD_GPMI_D10__SSP1_DATA6 |
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(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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MX23_PAD_GPMI_D11__SSP1_DATA7 |
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(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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MX23_PAD_SSP1_CMD__SSP1_CMD |
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(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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MX23_PAD_SSP1_DETECT__SSP1_DETECT |
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(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
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MX23_PAD_SSP1_SCK__SSP1_SCK |
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(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
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/* write protect */
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MX23_PAD_PWM4__GPIO_1_30 |
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(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
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/* slot power enable */
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MX23_PAD_PWM3__GPIO_1_29 |
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(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
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};
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/* mxsfb (lcdif) */
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static struct fb_videomode mx23evk_video_modes[] = {
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{
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.name = "Samsung-LMS430HF02",
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.refresh = 60,
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.xres = 480,
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.yres = 272,
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.pixclock = 108096, /* picosecond (9.2 MHz) */
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.left_margin = 15,
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.right_margin = 8,
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.upper_margin = 12,
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.lower_margin = 4,
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.hsync_len = 1,
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.vsync_len = 1,
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.sync = FB_SYNC_DATA_ENABLE_HIGH_ACT |
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FB_SYNC_DOTCLK_FAILING_ACT,
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},
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};
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static const struct mxsfb_platform_data mx23evk_mxsfb_pdata __initconst = {
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.mode_list = mx23evk_video_modes,
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.mode_count = ARRAY_SIZE(mx23evk_video_modes),
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.default_bpp = 32,
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.ld_intf_width = STMLCDIF_24BIT,
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};
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static struct mxs_mmc_platform_data mx23evk_mmc_pdata __initdata = {
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.wp_gpio = MX23EVK_MMC0_WRITE_PROTECT,
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.flags = SLOTF_8_BIT_CAPABLE,
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};
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static void __init mx23evk_init(void)
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{
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int ret;
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mxs_iomux_setup_multiple_pads(mx23evk_pads, ARRAY_SIZE(mx23evk_pads));
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mx23_add_duart();
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mx23_add_auart0();
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/* power on mmc slot by writing 0 to the gpio */
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ret = gpio_request_one(MX23EVK_MMC0_SLOT_POWER, GPIOF_OUT_INIT_LOW,
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"mmc0-slot-power");
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if (ret)
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pr_warn("failed to request gpio mmc0-slot-power: %d\n", ret);
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mx23_add_mxs_mmc(0, &mx23evk_mmc_pdata);
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ret = gpio_request_one(MX23EVK_LCD_ENABLE, GPIOF_DIR_OUT, "lcd-enable");
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if (ret)
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pr_warn("failed to request gpio lcd-enable: %d\n", ret);
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else
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gpio_set_value(MX23EVK_LCD_ENABLE, 1);
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ret = gpio_request_one(MX23EVK_BL_ENABLE, GPIOF_DIR_OUT, "bl-enable");
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if (ret)
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pr_warn("failed to request gpio bl-enable: %d\n", ret);
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else
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gpio_set_value(MX23EVK_BL_ENABLE, 1);
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mx23_add_mxsfb(&mx23evk_mxsfb_pdata);
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mx23_add_rtc_stmp3xxx();
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}
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static void __init mx23evk_timer_init(void)
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{
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mx23_clocks_init();
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}
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static struct sys_timer mx23evk_timer = {
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.init = mx23evk_timer_init,
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};
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MACHINE_START(MX23EVK, "Freescale MX23 EVK")
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/* Maintainer: Freescale Semiconductor, Inc. */
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.map_io = mx23_map_io,
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.init_irq = mx23_init_irq,
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.timer = &mx23evk_timer,
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.init_machine = mx23evk_init,
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.restart = mxs_restart,
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MACHINE_END
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