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mmc: meson-gx: replace magic timeout numbers with constants 

Replace timeout magic numbers with proper constants.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Heiner Kallweit 2017-03-04 13:37:46 +01:00 committed by Ulf Hansson
parent 7cdcc480e4
commit bb11eff1f1
1 changed files with 4 additions and 2 deletions
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6
drivers/mmc/host/meson-gx-mmc.c
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@ -116,6 +116,8 @@
#define SD_EMMC_CFG_BLK_SIZE 512 /* internal buffer max: 512 bytes */
#define SD_EMMC_CFG_RESP_TIMEOUT 256 /* in clock cycles */
#define SD_EMMC_CMD_TIMEOUT 1024 /* in ms */
#define SD_EMMC_CMD_TIMEOUT_DATA 4096 /* in ms */
#define SD_EMMC_CFG_CMD_GAP 16 /* in clock cycles */
#define MUX_CLK_NUM_PARENTS 2
@ -498,10 +500,10 @@ static void meson_mmc_start_cmd(struct mmc_host *mmc, struct mmc_command *cmd)
desc->cmd_data = host->bounce_dma_addr & CMD_DATA_MASK;
cmd_cfg_timeout = 12;
cmd_cfg_timeout = ilog2(SD_EMMC_CMD_TIMEOUT_DATA);
} else {
desc->cmd_cfg &= ~CMD_CFG_DATA_IO;
cmd_cfg_timeout = 10;
cmd_cfg_timeout = ilog2(SD_EMMC_CMD_TIMEOUT);
}
desc->cmd_cfg |= (cmd_cfg_timeout & CMD_CFG_TIMEOUT_MASK) <<
CMD_CFG_TIMEOUT_SHIFT;