diff options
Diffstat (limited to 'drivers/mmc/core/sd_ops.c')
-rw-r--r-- | drivers/mmc/core/sd_ops.c | 38 |
1 files changed, 7 insertions, 31 deletions
diff --git a/drivers/mmc/core/sd_ops.c b/drivers/mmc/core/sd_ops.c index d61ff811218c..ef8d1dce5af1 100644 --- a/drivers/mmc/core/sd_ops.c +++ b/drivers/mmc/core/sd_ops.c @@ -17,6 +17,7 @@ #include "core.h" #include "sd_ops.h" +#include "mmc_ops.h" int mmc_app_cmd(struct mmc_host *host, struct mmc_card *card) { @@ -309,43 +310,18 @@ int mmc_app_send_scr(struct mmc_card *card) int mmc_sd_switch(struct mmc_card *card, int mode, int group, u8 value, u8 *resp) { - struct mmc_request mrq = {}; - struct mmc_command cmd = {}; - struct mmc_data data = {}; - struct scatterlist sg; + u32 cmd_args; /* NOTE: caller guarantees resp is heap-allocated */ mode = !!mode; value &= 0xF; + cmd_args = mode << 31 | 0x00FFFFFF; + cmd_args &= ~(0xF << (group * 4)); + cmd_args |= value << (group * 4); - mrq.cmd = &cmd; - mrq.data = &data; - - cmd.opcode = SD_SWITCH; - cmd.arg = mode << 31 | 0x00FFFFFF; - cmd.arg &= ~(0xF << (group * 4)); - cmd.arg |= value << (group * 4); - cmd.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_ADTC; - - data.blksz = 64; - data.blocks = 1; - data.flags = MMC_DATA_READ; - data.sg = &sg; - data.sg_len = 1; - - sg_init_one(&sg, resp, 64); - - mmc_set_data_timeout(&data, card); - - mmc_wait_for_req(card->host, &mrq); - - if (cmd.error) - return cmd.error; - if (data.error) - return data.error; - - return 0; + return mmc_send_adtc_data(card, card->host, SD_SWITCH, cmd_args, resp, + 64); } int mmc_app_sd_status(struct mmc_card *card, void *ssr) |