diff options
Diffstat (limited to 'arch/arm/mach-mx2/pcm970-baseboard.c')
-rw-r--r-- | arch/arm/mach-mx2/pcm970-baseboard.c | 133 |
1 files changed, 132 insertions, 1 deletions
diff --git a/arch/arm/mach-mx2/pcm970-baseboard.c b/arch/arm/mach-mx2/pcm970-baseboard.c index a560cd6ad23d..bf4e520bc1bc 100644 --- a/arch/arm/mach-mx2/pcm970-baseboard.c +++ b/arch/arm/mach-mx2/pcm970-baseboard.c @@ -17,9 +17,138 @@ */ #include <linux/platform_device.h> -#include <mach/hardware.h> +#include <linux/gpio.h> +#include <linux/irq.h> + #include <asm/mach/arch.h> +#include <mach/hardware.h> +#include <mach/common.h> +#include <mach/mmc.h> +#include <mach/imxfb.h> +#include <mach/iomux.h> + +#include "devices.h" + +static int pcm970_sdhc2_get_ro(struct device *dev) +{ + return gpio_get_value(GPIO_PORTC + 28); +} + +static int pcm970_sdhc2_pins[] = { + PB4_PF_SD2_D0, + PB5_PF_SD2_D1, + PB6_PF_SD2_D2, + PB7_PF_SD2_D3, + PB8_PF_SD2_CMD, + PB9_PF_SD2_CLK, +}; + +static int pcm970_sdhc2_init(struct device *dev, irq_handler_t detect_irq, void *data) +{ + int ret; + + ret = mxc_gpio_setup_multiple_pins(pcm970_sdhc2_pins, + ARRAY_SIZE(pcm970_sdhc2_pins), "sdhc2"); + if(ret) + return ret; + + ret = request_irq(IRQ_GPIOC(29), detect_irq, 0, + "imx-mmc-detect", data); + if (ret) + goto out_release_gpio; + + set_irq_type(IRQ_GPIOC(29), IRQF_TRIGGER_FALLING); + + ret = gpio_request(GPIO_PORTC + 28, "imx-mmc-ro"); + if (ret) + goto out_release_gpio; + + mxc_gpio_mode((GPIO_PORTC | 28) | GPIO_GPIO | GPIO_IN); + gpio_direction_input(GPIO_PORTC + 28); + + return 0; + +out_release_gpio: + mxc_gpio_release_multiple_pins(pcm970_sdhc2_pins, + ARRAY_SIZE(pcm970_sdhc2_pins)); + return ret; +} + +static void pcm970_sdhc2_exit(struct device *dev, void *data) +{ + free_irq(IRQ_GPIOC(29), data); + gpio_free(GPIO_PORTC + 28); + mxc_gpio_release_multiple_pins(pcm970_sdhc2_pins, + ARRAY_SIZE(pcm970_sdhc2_pins)); +} + +static struct imxmmc_platform_data sdhc_pdata = { + .get_ro = pcm970_sdhc2_get_ro, + .init = pcm970_sdhc2_init, + .exit = pcm970_sdhc2_exit, +}; + +static int mxc_fb_pins[] = { + PA5_PF_LSCLK, PA6_PF_LD0, PA7_PF_LD1, PA8_PF_LD2, + PA9_PF_LD3, PA10_PF_LD4, PA11_PF_LD5, PA12_PF_LD6, + PA13_PF_LD7, PA14_PF_LD8, PA15_PF_LD9, PA16_PF_LD10, + PA17_PF_LD11, PA18_PF_LD12, PA19_PF_LD13, PA20_PF_LD14, + PA21_PF_LD15, PA22_PF_LD16, PA23_PF_LD17, PA24_PF_REV, + PA25_PF_CLS, PA26_PF_PS, PA27_PF_SPL_SPR, PA28_PF_HSYNC, + PA29_PF_VSYNC, PA30_PF_CONTRAST, PA31_PF_OE_ACD +}; + +static int pcm038_fb_init(struct platform_device *pdev) +{ + return mxc_gpio_setup_multiple_pins(mxc_fb_pins, + ARRAY_SIZE(mxc_fb_pins), "FB"); +} + +static int pcm038_fb_exit(struct platform_device *pdev) +{ + mxc_gpio_release_multiple_pins(mxc_fb_pins, ARRAY_SIZE(mxc_fb_pins)); + + return 0; +} + +/* + * Connected is a portrait Sharp-QVGA display + * of type: LQ035Q7DH06 + */ +static struct imx_fb_platform_data pcm038_fb_data = { + .pixclock = 188679, /* in ps (5.3MHz) */ + .xres = 240, + .yres = 320, + + .bpp = 16, + .hsync_len = 7, + .left_margin = 5, + .right_margin = 16, + + .vsync_len = 1, + .upper_margin = 7, + .lower_margin = 9, + .fixed_screen_cpu = 0, + + /* + * - HSYNC active high + * - VSYNC active high + * - clk notenabled while idle + * - clock not inverted + * - data not inverted + * - data enable low active + * - enable sharp mode + */ + .pcr = 0xFA0080C0, + .pwmr = 0x00A903FF, + .lscr1 = 0x00120300, + .dmacr = 0x00020010, + + .init = pcm038_fb_init, + .exit = pcm038_fb_exit, +}; + /* * system init for baseboard usage. Will be called by pcm038 init. * @@ -28,4 +157,6 @@ */ void __init pcm970_baseboard_init(void) { + mxc_register_device(&mxc_fb_device, &pcm038_fb_data); + mxc_register_device(&mxc_sdhc_device1, &sdhc_pdata); } |