diff options
Diffstat (limited to 'arch/arm/mach-ux500/board-mop500-sdi.c')
| -rw-r--r-- | arch/arm/mach-ux500/board-mop500-sdi.c | 184 |
1 files changed, 117 insertions, 67 deletions
diff --git a/arch/arm/mach-ux500/board-mop500-sdi.c b/arch/arm/mach-ux500/board-mop500-sdi.c index 4b99667..bf0b024 100644 --- a/arch/arm/mach-ux500/board-mop500-sdi.c +++ b/arch/arm/mach-ux500/board-mop500-sdi.c @@ -12,56 +12,14 @@ #include <linux/mmc/host.h> #include <linux/platform_device.h> -#include <plat/pincfg.h> +#include <asm/mach-types.h> +#include <plat/ste_dma40.h> #include <mach/devices.h> #include <mach/hardware.h> #include "devices-db8500.h" -#include "pins-db8500.h" #include "board-mop500.h" - -static pin_cfg_t mop500_sdi_pins[] = { - /* SDI0 (MicroSD slot) */ - GPIO18_MC0_CMDDIR, - GPIO19_MC0_DAT0DIR, - GPIO20_MC0_DAT2DIR, - GPIO21_MC0_DAT31DIR, - GPIO22_MC0_FBCLK, - GPIO23_MC0_CLK, - GPIO24_MC0_CMD, - GPIO25_MC0_DAT0, - GPIO26_MC0_DAT1, - GPIO27_MC0_DAT2, - GPIO28_MC0_DAT3, - - /* SDI4 (on-board eMMC) */ - GPIO197_MC4_DAT3, - GPIO198_MC4_DAT2, - GPIO199_MC4_DAT1, - GPIO200_MC4_DAT0, - GPIO201_MC4_CMD, - GPIO202_MC4_FBCLK, - GPIO203_MC4_CLK, - GPIO204_MC4_DAT7, - GPIO205_MC4_DAT6, - GPIO206_MC4_DAT5, - GPIO207_MC4_DAT4, -}; - -static pin_cfg_t mop500_sdi2_pins[] = { - /* SDI2 (POP eMMC) */ - GPIO128_MC2_CLK, - GPIO129_MC2_CMD, - GPIO130_MC2_FBCLK, - GPIO131_MC2_DAT0, - GPIO132_MC2_DAT1, - GPIO133_MC2_DAT2, - GPIO134_MC2_DAT3, - GPIO135_MC2_DAT4, - GPIO136_MC2_DAT5, - GPIO137_MC2_DAT6, - GPIO138_MC2_DAT7, -}; +#include "ste-dma40-db8500.h" /* * SDI 0 (MicroSD slot) @@ -86,48 +44,134 @@ static u32 mop500_sdi0_vdd_handler(struct device *dev, unsigned int vdd, MCI_DATA2DIREN | MCI_DATA31DIREN; } +#ifdef CONFIG_STE_DMA40 +struct stedma40_chan_cfg mop500_sdi0_dma_cfg_rx = { + .mode = STEDMA40_MODE_LOGICAL, + .dir = STEDMA40_PERIPH_TO_MEM, + .src_dev_type = DB8500_DMA_DEV29_SD_MM0_RX, + .dst_dev_type = STEDMA40_DEV_DST_MEMORY, + .src_info.data_width = STEDMA40_WORD_WIDTH, + .dst_info.data_width = STEDMA40_WORD_WIDTH, +}; + +static struct stedma40_chan_cfg mop500_sdi0_dma_cfg_tx = { + .mode = STEDMA40_MODE_LOGICAL, + .dir = STEDMA40_MEM_TO_PERIPH, + .src_dev_type = STEDMA40_DEV_SRC_MEMORY, + .dst_dev_type = DB8500_DMA_DEV29_SD_MM0_TX, + .src_info.data_width = STEDMA40_WORD_WIDTH, + .dst_info.data_width = STEDMA40_WORD_WIDTH, +}; +#endif + static struct mmci_platform_data mop500_sdi0_data = { .vdd_handler = mop500_sdi0_vdd_handler, .ocr_mask = MMC_VDD_29_30, .f_max = 100000000, .capabilities = MMC_CAP_4_BIT_DATA, - .gpio_cd = GPIO_SDMMC_CD, .gpio_wp = -1, +#ifdef CONFIG_STE_DMA40 + .dma_filter = stedma40_filter, + .dma_rx_param = &mop500_sdi0_dma_cfg_rx, + .dma_tx_param = &mop500_sdi0_dma_cfg_tx, +#endif }; -void mop500_sdi_tc35892_init(void) +/* GPIO pins used by the sdi0 level shifter */ +static int sdi0_en = -1; +static int sdi0_vsel = -1; + +static void sdi0_configure(void) { int ret; - ret = gpio_request(GPIO_SDMMC_EN, "SDMMC_EN"); + ret = gpio_request(sdi0_en, "level shifter enable"); if (!ret) - ret = gpio_request(GPIO_SDMMC_1V8_3V_SEL, - "GPIO_SDMMC_1V8_3V_SEL"); - if (ret) + ret = gpio_request(sdi0_vsel, + "level shifter 1v8-3v select"); + + if (ret) { + pr_warning("unable to config sdi0 gpios for level shifter.\n"); return; + } - gpio_direction_output(GPIO_SDMMC_1V8_3V_SEL, 1); - gpio_direction_output(GPIO_SDMMC_EN, 0); + /* Select the default 2.9V and enable level shifter */ + gpio_direction_output(sdi0_vsel, 0); + gpio_direction_output(sdi0_en, 1); + /* Add the device */ db8500_add_sdi0(&mop500_sdi0_data); } +void mop500_sdi_tc35892_init(void) +{ + mop500_sdi0_data.gpio_cd = GPIO_SDMMC_CD; + sdi0_en = GPIO_SDMMC_EN; + sdi0_vsel = GPIO_SDMMC_1V8_3V_SEL; + sdi0_configure(); +} + /* * SDI 2 (POP eMMC, not on DB8500ed) */ +#ifdef CONFIG_STE_DMA40 +struct stedma40_chan_cfg mop500_sdi2_dma_cfg_rx = { + .mode = STEDMA40_MODE_LOGICAL, + .dir = STEDMA40_PERIPH_TO_MEM, + .src_dev_type = DB8500_DMA_DEV28_SD_MM2_RX, + .dst_dev_type = STEDMA40_DEV_DST_MEMORY, + .src_info.data_width = STEDMA40_WORD_WIDTH, + .dst_info.data_width = STEDMA40_WORD_WIDTH, +}; + +static struct stedma40_chan_cfg mop500_sdi2_dma_cfg_tx = { + .mode = STEDMA40_MODE_LOGICAL, + .dir = STEDMA40_MEM_TO_PERIPH, + .src_dev_type = STEDMA40_DEV_SRC_MEMORY, + .dst_dev_type = DB8500_DMA_DEV28_SD_MM2_TX, + .src_info.data_width = STEDMA40_WORD_WIDTH, + .dst_info.data_width = STEDMA40_WORD_WIDTH, +}; +#endif + static struct mmci_platform_data mop500_sdi2_data = { .ocr_mask = MMC_VDD_165_195, .f_max = 100000000, .capabilities = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA, .gpio_cd = -1, .gpio_wp = -1, +#ifdef CONFIG_STE_DMA40 + .dma_filter = stedma40_filter, + .dma_rx_param = &mop500_sdi2_dma_cfg_rx, + .dma_tx_param = &mop500_sdi2_dma_cfg_tx, +#endif }; /* * SDI 4 (on-board eMMC) */ +#ifdef CONFIG_STE_DMA40 +struct stedma40_chan_cfg mop500_sdi4_dma_cfg_rx = { + .mode = STEDMA40_MODE_LOGICAL, + .dir = STEDMA40_PERIPH_TO_MEM, + .src_dev_type = DB8500_DMA_DEV42_SD_MM4_RX, + .dst_dev_type = STEDMA40_DEV_DST_MEMORY, + .src_info.data_width = STEDMA40_WORD_WIDTH, + .dst_info.data_width = STEDMA40_WORD_WIDTH, +}; + +static struct stedma40_chan_cfg mop500_sdi4_dma_cfg_tx = { + .mode = STEDMA40_MODE_LOGICAL, + .dir = STEDMA40_MEM_TO_PERIPH, + .src_dev_type = STEDMA40_DEV_SRC_MEMORY, + .dst_dev_type = DB8500_DMA_DEV42_SD_MM4_TX, + .src_info.data_width = STEDMA40_WORD_WIDTH, + .dst_info.data_width = STEDMA40_WORD_WIDTH, +}; +#endif + static struct mmci_platform_data mop500_sdi4_data = { .ocr_mask = MMC_VDD_29_30, .f_max = 100000000, @@ -135,26 +179,32 @@ static struct mmci_platform_data mop500_sdi4_data = { MMC_CAP_MMC_HIGHSPEED, .gpio_cd = -1, .gpio_wp = -1, +#ifdef CONFIG_STE_DMA40 + .dma_filter = stedma40_filter, + .dma_rx_param = &mop500_sdi4_dma_cfg_rx, + .dma_tx_param = &mop500_sdi4_dma_cfg_tx, +#endif }; void __init mop500_sdi_init(void) { - nmk_config_pins(mop500_sdi_pins, ARRAY_SIZE(mop500_sdi_pins)); + /* PoP:ed eMMC on top of DB8500 v1.0 has problems with high speed */ + if (!cpu_is_u8500v10()) + mop500_sdi2_data.capabilities |= MMC_CAP_MMC_HIGHSPEED; + db8500_add_sdi2(&mop500_sdi2_data); + + /* On-board eMMC */ + db8500_add_sdi4(&mop500_sdi4_data); + if (machine_is_hrefv60()) { + mop500_sdi0_data.gpio_cd = HREFV60_SDMMC_CD_GPIO; + sdi0_en = HREFV60_SDMMC_EN_GPIO; + sdi0_vsel = HREFV60_SDMMC_1V8_3V_GPIO; + sdi0_configure(); + } /* - * sdi0 will finally be added when the TC35892 initializes and calls + * On boards with the TC35892 GPIO expander, sdi0 will finally + * be added when the TC35892 initializes and calls * mop500_sdi_tc35892_init() above. */ - - /* PoP:ed eMMC */ - if (!cpu_is_u8500ed()) { - nmk_config_pins(mop500_sdi2_pins, ARRAY_SIZE(mop500_sdi2_pins)); - /* POP eMMC on v1.0 has problems with high speed */ - if (!cpu_is_u8500v10()) - mop500_sdi2_data.capabilities |= MMC_CAP_MMC_HIGHSPEED; - db8500_add_sdi2(&mop500_sdi2_data); - } - - /* On-board eMMC */ - db8500_add_sdi4(&mop500_sdi4_data); } |
