On Tue, Oct 19, 2010 at 1:06 PM, <[email protected]> wrote:
> From: Victor Rodriguez <[email protected]>
>
> This patch adds MMC/SD support for the Hawkboard-L138 system
>
> Signed-off-by: Victor Rodriguez <[email protected]>
>
Tested-by: Rene Gonzalez <[email protected]>
> ---
> Notes:
>
> This patch works with da8xx_omapl_defconfig
> In order to test it select in menuconfig like insmodule
>
> MMC/SD/SDIO card support --->
> MMC block device driver
> Use bounce buffer for simple hosts
> TI DAVINCI Multimedia Card Interface support
>
> arch/arm/mach-davinci/board-omapl138-hawk.c | 63
> +++++++++++++++++++++++++++
> 1 files changed, 63 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c
> b/arch/arm/mach-davinci/board-omapl138-hawk.c
> index 97836e9..c83050b 100644
> --- a/arch/arm/mach-davinci/board-omapl138-hawk.c
> +++ b/arch/arm/mach-davinci/board-omapl138-hawk.c
> @@ -23,6 +23,8 @@
> #include <mach/mux.h>
>
> #define HAWKBOARD_PHY_ID "0:07"
> +#define DA850_HAWK_MMCSD_CD_PIN GPIO_TO_PIN(3, 12)
> +#define DA850_HAWK_MMCSD_WP_PIN GPIO_TO_PIN(3, 13)
>
> static short omapl138_hawk_mii_pins[] __initdata = {
> DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
> @@ -147,6 +149,65 @@ static struct snd_platform_data omapl138_hawk_snd_data
> = {
> .rxnumevt = 1,
> };
>
> +static const short hawk_mmcsd0_pins[] = {
> + DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2,
> + DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD,
> + DA850_GPIO3_12, DA850_GPIO3_13,
> + -1
> +};
> +
> +static int da850_hawk_mmc_get_ro(int index)
> +{
> + return gpio_get_value(DA850_HAWK_MMCSD_WP_PIN);
> +}
> +
> +static int da850_hawk_mmc_get_cd(int index)
> +{
> + return !gpio_get_value(DA850_HAWK_MMCSD_CD_PIN);
> +}
> +
> +static struct davinci_mmc_config da850_mmc_config = {
> + .get_ro = da850_hawk_mmc_get_ro,
> + .get_cd = da850_hawk_mmc_get_cd,
> + .wires = 4,
> + .max_freq = 50000000,
> + .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
> + .version = MMC_CTLR_VERSION_2,
> +};
> +
> +static __init void omapl138_hawk_mmc_init(void)
> +{
> + int ret;
> +
> + ret = davinci_cfg_reg_list(hawk_mmcsd0_pins);
> + if (ret) {
> + pr_warning("%s: MMC/SD0 mux setup failed: %d\n",
> + __func__, ret);
> + return;
> + }
> +
> + ret = gpio_request_one(DA850_HAWK_MMCSD_CD_PIN,
> + GPIOF_DIR_IN, "MMC CD");
> + if (ret < 0) {
> + pr_warning("%s: can not open GPIO %d\n",
> + __func__, DA850_HAWK_MMCSD_CD_PIN);
> + return;
> + }
> +
> + ret = gpio_request_one(DA850_HAWK_MMCSD_WP_PIN,
> + GPIOF_DIR_IN, "MMC WP");
> + if (ret < 0) {
> + pr_warning("%s: can not open GPIO %d\n",
> + __func__, DA850_HAWK_MMCSD_WP_PIN);
> + return;
> + }
> +
> + ret = da8xx_register_mmcsd0(&da850_mmc_config);
> + if (ret)
> + pr_warning("%s: MMC/SD0 registration failed: %d\n",
> + __func__, ret);
> +}
> +
> static struct davinci_uart_config omapl138_hawk_uart_config __initdata = {
> .enabled_uarts = 0x7,
> };
> @@ -177,6 +238,8 @@ static __init void omapl138_hawk_init(void)
> pr_warning("%s: mcasp mux setup failed: %d\n", __func__,
> ret);
> da8xx_register_mcasp(0, &omapl138_hawk_snd_data);
>
> + omapl138_hawk_mmc_init();
> +
> ret = da8xx_register_watchdog();
> if (ret)
> pr_warning("omapl138_hawk_init: "
> --
> 1.6.0.5
>
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>
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