Add timeout in mmc_cmd, we can use this in driver code. Add mmc_sd_erase_timeout, this function is modified from linux kernel.
Signed-off-by: Peng Fan peng.fan@nxp.com Cc: Jaehoon Chung jh80.chung@samsung.com Cc: Simon Glass sjg@chromium.org Cc: Bin Meng bmeng.cn@gmail.com Cc: Stefan Wahren stefan.wahren@i2se.com Cc: Clemens Gruber clemens.gruber@pqgruber.com Cc: Kever Yang kever.yang@rock-chips.com Cc: Eric Nelson eric@nelint.com Cc: Stephen Warren swarren@nvidia.com --- drivers/mmc/mmc_write.c | 29 +++++++++++++++++++++++++++++ include/mmc.h | 1 + 2 files changed, 30 insertions(+)
diff --git a/drivers/mmc/mmc_write.c b/drivers/mmc/mmc_write.c index 4149f4a..3589f8e 100644 --- a/drivers/mmc/mmc_write.c +++ b/drivers/mmc/mmc_write.c @@ -15,6 +15,33 @@ #include <linux/math64.h> #include "mmc_private.h"
+/* + * Modified from from Linux kernel mmc_sd_erase_timeout. + */ +static unsigned int mmc_sd_erase_timeout(struct mmc *mmc, + unsigned int nr) +{ + unsigned int erase_timeout; + + if (mmc->ssr.erase_timeout) { + /* Erase timeout specified in SD Status Register (SSR) */ + erase_timeout = mmc->ssr.erase_timeout * nr + + mmc->ssr.erase_offset; + } else { + /* + * Erase timeout not specified in SD Status Register (SSR) so + * use 250ms per write block. + */ + erase_timeout = 250 * nr; + } + + /* Must not be less than 1 second */ + if (erase_timeout < 1000) + erase_timeout = 1000; + + return erase_timeout; +} + static ulong mmc_erase_t(struct mmc *mmc, ulong start, lbaint_t blkcnt) { struct mmc_cmd cmd = {0}; @@ -54,6 +81,8 @@ static ulong mmc_erase_t(struct mmc *mmc, ulong start, lbaint_t blkcnt) cmd.cmdidx = MMC_CMD_ERASE; cmd.cmdarg = MMC_ERASE_ARG; cmd.resp_type = MMC_RSP_R1b; + if (IS_SD(mmc)) + cmd.timeout = mmc_sd_erase_timeout(mmc, blkcnt);
err = mmc_send_cmd(mmc, &cmd, NULL); if (err) diff --git a/include/mmc.h b/include/mmc.h index af2595c..432e6ee 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -303,6 +303,7 @@ struct mmc_cmd { uint resp_type; uint cmdarg; uint response[4]; + int timeout; };
struct mmc_data {