X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=drivers%2Fmmc%2Fsh_sdhi.c;h=d181b6390586683cb61503fc136e8543f66951f7;hb=235c5b8315c6a9eb566fd3d99a098cc6db869fc5;hp=ea82e2b449da4b6a645bb6aa2d3eb82f956885b0;hpb=c98b171e1098f94b2ff7720c45a25a602882f876;p=platform%2Fkernel%2Fu-boot.git diff --git a/drivers/mmc/sh_sdhi.c b/drivers/mmc/sh_sdhi.c index ea82e2b..d181b63 100644 --- a/drivers/mmc/sh_sdhi.c +++ b/drivers/mmc/sh_sdhi.c @@ -3,7 +3,7 @@ * * SD/MMC driver for Renesas rmobile ARM SoCs. * - * Copyright (C) 2011,2013-2014 Renesas Electronics Corporation + * Copyright (C) 2011,2013-2017 Renesas Electronics Corporation * Copyright (C) 2014 Nobuhiro Iwamatsu * Copyright (C) 2008-2009 Renesas Solutions Corp. * @@ -13,7 +13,7 @@ #include #include #include -#include +#include #include #include #include @@ -29,6 +29,17 @@ struct sh_sdhi_host { unsigned char sd_error; unsigned char detect_waiting; }; + +static inline void sh_sdhi_writeq(struct sh_sdhi_host *host, int reg, u64 val) +{ + writeq(val, host->addr + (reg << host->bus_shift)); +} + +static inline u64 sh_sdhi_readq(struct sh_sdhi_host *host, int reg) +{ + return readq(host->addr + (reg << host->bus_shift)); +} + static inline void sh_sdhi_writew(struct sh_sdhi_host *host, int reg, u16 val) { writew(val, host->addr + (reg << host->bus_shift)); @@ -261,6 +272,7 @@ static int sh_sdhi_single_read(struct sh_sdhi_host *host, struct mmc_data *data) long time; unsigned short blocksize, i; unsigned short *p = (unsigned short *)data->dest; + u64 *q = (u64 *)data->dest; if ((unsigned long)p & 0x00000001) { debug(DRIVER_NAME": %s: The data pointer is unaligned.", @@ -281,8 +293,12 @@ static int sh_sdhi_single_read(struct sh_sdhi_host *host, struct mmc_data *data) host->wait_int = 0; blocksize = sh_sdhi_readw(host, SDHI_SIZE); - for (i = 0; i < blocksize / 2; i++) - *p++ = sh_sdhi_readw(host, SDHI_BUF0); + if (host->quirks & SH_SDHI_QUIRK_64BIT_BUF) + for (i = 0; i < blocksize / 8; i++) + *q++ = sh_sdhi_readq(host, SDHI_BUF0); + else + for (i = 0; i < blocksize / 2; i++) + *p++ = sh_sdhi_readw(host, SDHI_BUF0); time = sh_sdhi_wait_interrupt_flag(host); if (time == 0 || host->sd_error != 0) @@ -297,6 +313,7 @@ static int sh_sdhi_multi_read(struct sh_sdhi_host *host, struct mmc_data *data) long time; unsigned short blocksize, i, sec; unsigned short *p = (unsigned short *)data->dest; + u64 *q = (u64 *)data->dest; if ((unsigned long)p & 0x00000001) { debug(DRIVER_NAME": %s: The data pointer is unaligned.", @@ -319,8 +336,12 @@ static int sh_sdhi_multi_read(struct sh_sdhi_host *host, struct mmc_data *data) host->wait_int = 0; blocksize = sh_sdhi_readw(host, SDHI_SIZE); - for (i = 0; i < blocksize / 2; i++) - *p++ = sh_sdhi_readw(host, SDHI_BUF0); + if (host->quirks & SH_SDHI_QUIRK_64BIT_BUF) + for (i = 0; i < blocksize / 8; i++) + *q++ = sh_sdhi_readq(host, SDHI_BUF0); + else + for (i = 0; i < blocksize / 2; i++) + *p++ = sh_sdhi_readw(host, SDHI_BUF0); } return 0; @@ -332,6 +353,7 @@ static int sh_sdhi_single_write(struct sh_sdhi_host *host, long time; unsigned short blocksize, i; const unsigned short *p = (const unsigned short *)data->src; + const u64 *q = (const u64 *)data->src; if ((unsigned long)p & 0x00000001) { debug(DRIVER_NAME": %s: The data pointer is unaligned.", @@ -356,8 +378,12 @@ static int sh_sdhi_single_write(struct sh_sdhi_host *host, host->wait_int = 0; blocksize = sh_sdhi_readw(host, SDHI_SIZE); - for (i = 0; i < blocksize / 2; i++) - sh_sdhi_writew(host, SDHI_BUF0, *p++); + if (host->quirks & SH_SDHI_QUIRK_64BIT_BUF) + for (i = 0; i < blocksize / 8; i++) + sh_sdhi_writeq(host, SDHI_BUF0, *q++); + else + for (i = 0; i < blocksize / 2; i++) + sh_sdhi_writew(host, SDHI_BUF0, *p++); time = sh_sdhi_wait_interrupt_flag(host); if (time == 0 || host->sd_error != 0) @@ -372,6 +398,7 @@ static int sh_sdhi_multi_write(struct sh_sdhi_host *host, struct mmc_data *data) long time; unsigned short i, sec, blocksize; const unsigned short *p = (const unsigned short *)data->src; + const u64 *q = (const u64 *)data->src; debug("%s: blocks = %d, blocksize = %d\n", __func__, data->blocks, data->blocksize); @@ -388,8 +415,12 @@ static int sh_sdhi_multi_write(struct sh_sdhi_host *host, struct mmc_data *data) host->wait_int = 0; blocksize = sh_sdhi_readw(host, SDHI_SIZE); - for (i = 0; i < blocksize / 2; i++) - sh_sdhi_writew(host, SDHI_BUF0, *p++); + if (host->quirks & SH_SDHI_QUIRK_64BIT_BUF) + for (i = 0; i < blocksize / 8; i++) + sh_sdhi_writeq(host, SDHI_BUF0, *q++); + else + for (i = 0; i < blocksize / 2; i++) + sh_sdhi_writew(host, SDHI_BUF0, *p++); } return 0; @@ -458,6 +489,13 @@ static unsigned short sh_sdhi_set_cmd(struct sh_sdhi_host *host, else /* SD_SWITCH */ opc = SDHI_SD_SWITCH; break; + case MMC_CMD_SEND_OP_COND: + opc = SDHI_MMC_SEND_OP_COND; + break; + case MMC_CMD_SEND_EXT_CSD: + if (data) + opc = SDHI_MMC_SEND_EXT_CSD; + break; default: break; } @@ -482,6 +520,7 @@ static unsigned short sh_sdhi_data_trans(struct sh_sdhi_host *host, case MMC_CMD_READ_SINGLE_BLOCK: case SDHI_SD_APP_SEND_SCR: case SDHI_SD_SWITCH: /* SD_SWITCH */ + case SDHI_MMC_SEND_EXT_CSD: ret = sh_sdhi_single_read(host, data); break; default: @@ -546,8 +585,6 @@ static int sh_sdhi_start_cmd(struct sh_sdhi_host *host, break; } - sh_sdhi_writew(host, SDHI_CMD, (unsigned short)(opc & CMD_MASK)); - host->wait_int = 0; sh_sdhi_writew(host, SDHI_INFO1_MASK, ~INFO1M_RESP_END & sh_sdhi_readw(host, SDHI_INFO1_MASK)); @@ -557,6 +594,8 @@ static int sh_sdhi_start_cmd(struct sh_sdhi_host *host, INFO2M_RESP_TIMEOUT | INFO2M_ILA) & sh_sdhi_readw(host, SDHI_INFO2_MASK)); + sh_sdhi_writew(host, SDHI_CMD, (unsigned short)(opc & CMD_MASK)); + time = sh_sdhi_wait_interrupt_flag(host); if (!time) return sh_sdhi_error_manage(host); @@ -608,23 +647,31 @@ static int sh_sdhi_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, return ret; } -static void sh_sdhi_set_ios(struct mmc *mmc) +static int sh_sdhi_set_ios(struct mmc *mmc) { int ret; struct sh_sdhi_host *host = mmc_priv(mmc); ret = sh_sdhi_clock_control(host, mmc->clock); if (ret) - return; + return -EINVAL; - if (mmc->bus_width == 4) - sh_sdhi_writew(host, SDHI_OPTION, ~OPT_BUS_WIDTH_1 & - sh_sdhi_readw(host, SDHI_OPTION)); + if (mmc->bus_width == 8) + sh_sdhi_writew(host, SDHI_OPTION, + OPT_BUS_WIDTH_8 | (~OPT_BUS_WIDTH_M & + sh_sdhi_readw(host, SDHI_OPTION))); + else if (mmc->bus_width == 4) + sh_sdhi_writew(host, SDHI_OPTION, + OPT_BUS_WIDTH_4 | (~OPT_BUS_WIDTH_M & + sh_sdhi_readw(host, SDHI_OPTION))); else - sh_sdhi_writew(host, SDHI_OPTION, OPT_BUS_WIDTH_1 | - sh_sdhi_readw(host, SDHI_OPTION)); + sh_sdhi_writew(host, SDHI_OPTION, + OPT_BUS_WIDTH_1 | (~OPT_BUS_WIDTH_M & + sh_sdhi_readw(host, SDHI_OPTION))); debug("clock = %d, buswidth = %d\n", mmc->clock, mmc->bus_width); + + return 0; } static int sh_sdhi_initialize(struct mmc *mmc) @@ -651,6 +698,19 @@ static const struct mmc_ops sh_sdhi_ops = { .init = sh_sdhi_initialize, }; +#ifdef CONFIG_RCAR_GEN3 +static struct mmc_config sh_sdhi_cfg = { + .name = DRIVER_NAME, + .ops = &sh_sdhi_ops, + .f_min = CLKDEV_INIT, + .f_max = CLKDEV_HS_DATA, + .voltages = MMC_VDD_165_195 | MMC_VDD_32_33 | MMC_VDD_33_34, + .host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT | MMC_MODE_HS | + MMC_MODE_HS_52MHz, + .part_type = PART_TYPE_DOS, + .b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT, +}; +#else static struct mmc_config sh_sdhi_cfg = { .name = DRIVER_NAME, .ops = &sh_sdhi_ops, @@ -661,6 +721,7 @@ static struct mmc_config sh_sdhi_cfg = { .part_type = PART_TYPE_DOS, .b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT, }; +#endif int sh_sdhi_init(unsigned long addr, int ch, unsigned long quirks) { @@ -685,7 +746,9 @@ int sh_sdhi_init(unsigned long addr, int ch, unsigned long quirks) host->addr = addr; host->quirks = quirks; - if (host->quirks & SH_SDHI_QUIRK_16BIT_BUF) + if (host->quirks & SH_SDHI_QUIRK_64BIT_BUF) + host->bus_shift = 2; + else if (host->quirks & SH_SDHI_QUIRK_16BIT_BUF) host->bus_shift = 1; return ret;