diff options
Diffstat (limited to 'arch/arm/mach-mxs/mach-mx23evk.c')
| -rw-r--r-- | arch/arm/mach-mxs/mach-mx23evk.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/arch/arm/mach-mxs/mach-mx23evk.c b/arch/arm/mach-mxs/mach-mx23evk.c new file mode 100644 index 000000000000..a66994f0518f --- /dev/null +++ b/arch/arm/mach-mxs/mach-mx23evk.c @@ -0,0 +1,143 @@ +/* + * Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved. + * + * 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/delay.h> +#include <linux/platform_device.h> +#include <linux/gpio.h> +#include <linux/irq.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/time.h> + +#include <mach/common.h> +#include <mach/iomux-mx23.h> + +#include "devices-mx23.h" + +#define MX23EVK_LCD_ENABLE MXS_GPIO_NR(1, 18) +#define MX23EVK_BL_ENABLE MXS_GPIO_NR(1, 28) + +static const iomux_cfg_t mx23evk_pads[] __initconst = { + /* duart */ + MX23_PAD_PWM0__DUART_RX | MXS_PAD_CTRL, + MX23_PAD_PWM1__DUART_TX | MXS_PAD_CTRL, + + /* auart */ + MX23_PAD_AUART1_RX__AUART1_RX | MXS_PAD_CTRL, + MX23_PAD_AUART1_TX__AUART1_TX | MXS_PAD_CTRL, + MX23_PAD_AUART1_CTS__AUART1_CTS | MXS_PAD_CTRL, + MX23_PAD_AUART1_RTS__AUART1_RTS | MXS_PAD_CTRL, + + /* mxsfb (lcdif) */ + MX23_PAD_LCD_D00__LCD_D00 | MXS_PAD_CTRL, + MX23_PAD_LCD_D01__LCD_D01 | MXS_PAD_CTRL, + MX23_PAD_LCD_D02__LCD_D02 | MXS_PAD_CTRL, + MX23_PAD_LCD_D03__LCD_D03 | MXS_PAD_CTRL, + MX23_PAD_LCD_D04__LCD_D04 | MXS_PAD_CTRL, + MX23_PAD_LCD_D05__LCD_D05 | MXS_PAD_CTRL, + MX23_PAD_LCD_D06__LCD_D06 | MXS_PAD_CTRL, + MX23_PAD_LCD_D07__LCD_D07 | MXS_PAD_CTRL, + MX23_PAD_LCD_D08__LCD_D08 | MXS_PAD_CTRL, + MX23_PAD_LCD_D09__LCD_D09 | MXS_PAD_CTRL, + MX23_PAD_LCD_D10__LCD_D10 | MXS_PAD_CTRL, + MX23_PAD_LCD_D11__LCD_D11 | MXS_PAD_CTRL, + MX23_PAD_LCD_D12__LCD_D12 | MXS_PAD_CTRL, + MX23_PAD_LCD_D13__LCD_D13 | MXS_PAD_CTRL, + MX23_PAD_LCD_D14__LCD_D14 | MXS_PAD_CTRL, + MX23_PAD_LCD_D15__LCD_D15 | MXS_PAD_CTRL, + MX23_PAD_LCD_D16__LCD_D16 | MXS_PAD_CTRL, + MX23_PAD_LCD_D17__LCD_D17 | MXS_PAD_CTRL, + MX23_PAD_GPMI_D08__LCD_D18 | MXS_PAD_CTRL, + MX23_PAD_GPMI_D09__LCD_D19 | MXS_PAD_CTRL, + MX23_PAD_GPMI_D10__LCD_D20 | MXS_PAD_CTRL, + MX23_PAD_GPMI_D11__LCD_D21 | MXS_PAD_CTRL, + MX23_PAD_GPMI_D12__LCD_D22 | MXS_PAD_CTRL, + MX23_PAD_GPMI_D13__LCD_D23 | MXS_PAD_CTRL, + MX23_PAD_LCD_VSYNC__LCD_VSYNC | MXS_PAD_CTRL, + MX23_PAD_LCD_HSYNC__LCD_HSYNC | MXS_PAD_CTRL, + MX23_PAD_LCD_DOTCK__LCD_DOTCK | MXS_PAD_CTRL, + MX23_PAD_LCD_ENABLE__LCD_ENABLE | MXS_PAD_CTRL, + /* LCD panel enable */ + MX23_PAD_LCD_RESET__GPIO_1_18 | MXS_PAD_CTRL, + /* backlight control */ + MX23_PAD_PWM2__GPIO_1_28 | MXS_PAD_CTRL, +}; + +/* mxsfb (lcdif) */ +static struct fb_videomode mx23evk_video_modes[] = { + { + .name = "Samsung-LMS430HF02", + .refresh = 60, + .xres = 480, + .yres = 272, + .pixclock = 108096, /* picosecond (9.2 MHz) */ + .left_margin = 15, + .right_margin = 8, + .upper_margin = 12, + .lower_margin = 4, + .hsync_len = 1, + .vsync_len = 1, + .sync = FB_SYNC_DATA_ENABLE_HIGH_ACT | + FB_SYNC_DOTCLK_FAILING_ACT, + }, +}; + +static const struct mxsfb_platform_data mx23evk_mxsfb_pdata __initconst = { + .mode_list = mx23evk_video_modes, + .mode_count = ARRAY_SIZE(mx23evk_video_modes), + .default_bpp = 32, + .ld_intf_width = STMLCDIF_24BIT, +}; + +static void __init mx23evk_init(void) +{ + int ret; + + mxs_iomux_setup_multiple_pads(mx23evk_pads, ARRAY_SIZE(mx23evk_pads)); + + mx23_add_duart(); + mx23_add_auart0(); + + ret = gpio_request_one(MX23EVK_LCD_ENABLE, GPIOF_DIR_OUT, "lcd-enable"); + if (ret) + pr_warn("failed to request gpio lcd-enable: %d\n", ret); + else + gpio_set_value(MX23EVK_LCD_ENABLE, 1); + + ret = gpio_request_one(MX23EVK_BL_ENABLE, GPIOF_DIR_OUT, "bl-enable"); + if (ret) + pr_warn("failed to request gpio bl-enable: %d\n", ret); + else + gpio_set_value(MX23EVK_BL_ENABLE, 1); + + mx23_add_mxsfb(&mx23evk_mxsfb_pdata); +} + +static void __init mx23evk_timer_init(void) +{ + mx23_clocks_init(); +} + +static struct sys_timer mx23evk_timer = { + .init = mx23evk_timer_init, +}; + +MACHINE_START(MX23EVK, "Freescale MX23 EVK") + /* Maintainer: Freescale Semiconductor, Inc. */ + .map_io = mx23_map_io, + .init_irq = mx23_init_irq, + .init_machine = mx23evk_init, + .timer = &mx23evk_timer, +MACHINE_END |