From: Victor Rodriguez <[email protected]> This patch adds MMC/SD support for the Hawkboard-L138 system It is under the machine name "omapl138_hawkboard". This system is based on the da850 davinci CPU architecture.
Signed-off-by: Victor Rodriguez <[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 | 43 +++++++++++++++++++++++++++ 1 files changed, 43 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c index ba3718a..ae7f75c 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 DA850_EVM_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, @@ -149,6 +151,25 @@ static struct snd_platform_data omapl138_hawk_snd_data = { .rxnumevt = 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 struct davinci_uart_config omapl138_hawk_uart_config __initdata = { .enabled_uarts = 0x7, }; @@ -180,6 +201,28 @@ static __init void omapl138_hawk_init(void) "mcasp mux setup failed: %d\n", ret); da8xx_register_mcasp(0, &omapl138_hawk_snd_data); + ret = davinci_cfg_reg_list(da850_mmcsd0_pins); + if (ret) + pr_warning("omapl138_hawk_init: " + "mmcsd0 mux setup failed: %d\n", ret); + + ret = gpio_request(DA850_HAWK_MMCSD_CD_PIN, "MMC CD\n"); + if (ret) + pr_warning("da850_hawk_init: can not open GPIO %d\n", + DA850_HAWK_MMCSD_CD_PIN); + gpio_direction_input(DA850_HAWK_MMCSD_CD_PIN); + + ret = gpio_request(DA850_HAWK_MMCSD_WP_PIN, "MMC WP\n"); + if (ret) + pr_warning("da850_hawk_init: can not open GPIO %d\n", + DA850_HAWK_MMCSD_WP_PIN); + gpio_direction_input(DA850_HAWK_MMCSD_WP_PIN); + + ret = da8xx_register_mmcsd0(&da850_mmc_config); + if (ret) + pr_warning("omapl138_hawk_init: " + "mmcsd0 registration failed: %d\n", ret); + ret = da8xx_register_watchdog(); if (ret) pr_warning("omapl138_hawk_init: " -- 1.6.0.5 _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
