diff options
Diffstat (limited to 'arch/arm/mach-ux500/board-mop500-sdi.c')
| -rw-r--r-- | arch/arm/mach-ux500/board-mop500-sdi.c | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/board-mop500-sdi.c b/arch/arm/mach-ux500/board-mop500-sdi.c new file mode 100644 index 00000000..0ef38775 --- /dev/null +++ b/arch/arm/mach-ux500/board-mop500-sdi.c @@ -0,0 +1,233 @@ +/* + * Copyright (C) ST-Ericsson SA 2010 + * + * Author: Hanumath Prasad <hanumath.prasad@stericsson.com> + * License terms: GNU General Public License (GPL) version 2 + */ + +#include <linux/kernel.h> +#include <linux/gpio.h> +#include <linux/amba/bus.h> +#include <linux/amba/mmci.h> +#include <linux/mmc/host.h> +#include <linux/platform_device.h> +#include <linux/platform_data/dma-ste-dma40.h> + +#include <asm/mach-types.h> +#include "devices.h" + +#include "db8500-regs.h" +#include "devices-db8500.h" +#include "board-mop500.h" +#include "ste-dma40-db8500.h" + +/* + * v2 has a new version of this block that need to be forced, the number found + * in hardware is incorrect + */ +#define U8500_SDI_V2_PERIPHID 0x10480180 + +/* + * SDI 0 (MicroSD slot) + */ + +#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 + +struct mmci_platform_data mop500_sdi0_data = { + .ocr_mask = MMC_VDD_29_30, + .f_max = 50000000, + .capabilities = MMC_CAP_4_BIT_DATA | + MMC_CAP_SD_HIGHSPEED | + MMC_CAP_MMC_HIGHSPEED, + .gpio_wp = -1, + .sigdir = MCI_ST_FBCLKEN | + MCI_ST_CMDDIREN | + MCI_ST_DATA0DIREN | + MCI_ST_DATA2DIREN, +#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 +}; + +static void sdi0_configure(struct device *parent) +{ + /* Add the device, force v2 to subrevision 1 */ + db8500_add_sdi0(parent, &mop500_sdi0_data, U8500_SDI_V2_PERIPHID); +} + +void mop500_sdi_tc35892_init(struct device *parent) +{ + mop500_sdi0_data.gpio_cd = GPIO_SDMMC_CD; + sdi0_configure(parent); +} + +/* + * SDI1 (SDIO WLAN) + */ +#ifdef CONFIG_STE_DMA40 +static struct stedma40_chan_cfg sdi1_dma_cfg_rx = { + .mode = STEDMA40_MODE_LOGICAL, + .dir = STEDMA40_PERIPH_TO_MEM, + .src_dev_type = DB8500_DMA_DEV32_SD_MM1_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 sdi1_dma_cfg_tx = { + .mode = STEDMA40_MODE_LOGICAL, + .dir = STEDMA40_MEM_TO_PERIPH, + .src_dev_type = STEDMA40_DEV_SRC_MEMORY, + .dst_dev_type = DB8500_DMA_DEV32_SD_MM1_TX, + .src_info.data_width = STEDMA40_WORD_WIDTH, + .dst_info.data_width = STEDMA40_WORD_WIDTH, +}; +#endif + +struct mmci_platform_data mop500_sdi1_data = { + .ocr_mask = MMC_VDD_29_30, + .f_max = 50000000, + .capabilities = MMC_CAP_4_BIT_DATA, + .gpio_cd = -1, + .gpio_wp = -1, +#ifdef CONFIG_STE_DMA40 + .dma_filter = stedma40_filter, + .dma_rx_param = &sdi1_dma_cfg_rx, + .dma_tx_param = &sdi1_dma_cfg_tx, +#endif +}; + +/* + * 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 + +struct mmci_platform_data mop500_sdi2_data = { + .ocr_mask = MMC_VDD_165_195, + .f_max = 50000000, + .capabilities = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA | + MMC_CAP_MMC_HIGHSPEED, + .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 + +struct mmci_platform_data mop500_sdi4_data = { + .ocr_mask = MMC_VDD_29_30, + .f_max = 50000000, + .capabilities = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_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(struct device *parent) +{ + /* PoP:ed eMMC */ + db8500_add_sdi2(parent, &mop500_sdi2_data, U8500_SDI_V2_PERIPHID); + /* On-board eMMC */ + db8500_add_sdi4(parent, &mop500_sdi4_data, U8500_SDI_V2_PERIPHID); + + /* + * On boards with the TC35892 GPIO expander, sdi0 will finally + * be added when the TC35892 initializes and calls + * mop500_sdi_tc35892_init() above. + */ +} + +void __init snowball_sdi_init(struct device *parent) +{ + /* On Snowball MMC_CAP_SD_HIGHSPEED isn't supported (Hardware issue?) */ + mop500_sdi0_data.capabilities &= ~MMC_CAP_SD_HIGHSPEED; + /* On-board eMMC */ + db8500_add_sdi4(parent, &mop500_sdi4_data, U8500_SDI_V2_PERIPHID); + /* External Micro SD slot */ + mop500_sdi0_data.gpio_cd = SNOWBALL_SDMMC_CD_GPIO; + mop500_sdi0_data.cd_invert = true; + sdi0_configure(parent); +} + +void __init hrefv60_sdi_init(struct device *parent) +{ + /* PoP:ed eMMC */ + db8500_add_sdi2(parent, &mop500_sdi2_data, U8500_SDI_V2_PERIPHID); + /* On-board eMMC */ + db8500_add_sdi4(parent, &mop500_sdi4_data, U8500_SDI_V2_PERIPHID); + /* External Micro SD slot */ + mop500_sdi0_data.gpio_cd = HREFV60_SDMMC_CD_GPIO; + sdi0_configure(parent); + /* WLAN SDIO channel */ + db8500_add_sdi1(parent, &mop500_sdi1_data, U8500_SDI_V2_PERIPHID); +} |