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| author | mingming lee <mingming.lee@mediatek.com> | 2019-12-31 11:29:25 +0800 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2020-01-16 09:39:45 -0500 |
| commit | fb80eaa9d8c15840bbceb4b8152c3759a84ae39e (patch) | |
| tree | 11c1d25420b670de25701ec41bdecf0b49bb944a /drivers/mmc | |
| parent | 3b0397d48b54aa22ea45e70dbbef065bbc69a245 (diff) | |
| download | u-boot-fb80eaa9d8c15840bbceb4b8152c3759a84ae39e.zip u-boot-fb80eaa9d8c15840bbceb4b8152c3759a84ae39e.tar.gz u-boot-fb80eaa9d8c15840bbceb4b8152c3759a84ae39e.tar.bz2 | |
mmc: mtk-sd: fix hang when data read quickly
For CMD21 tuning data, the 128/64 bytes data may coming in very
short time, before msdc_start_data(), the read data has already
come, in this case, clear MSDC_INT will cause the interrupt disappear
and lead to the thread hang.
the solution is just clear all interrupts before command was sent.
Signed-off-by: mingming lee <mingming.lee@mediatek.com>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/mtk-sd.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/mmc/mtk-sd.c b/drivers/mmc/mtk-sd.c index 2341373..b036587 100644 --- a/drivers/mmc/mtk-sd.c +++ b/drivers/mmc/mtk-sd.c @@ -14,7 +14,6 @@ #include <malloc.h> #include <mapmem.h> #include <stdbool.h> -#include <watchdog.h> #include <asm/gpio.h> #include <dm/pinctrl.h> #include <linux/bitops.h> @@ -531,6 +530,7 @@ static int msdc_start_command(struct msdc_host *host, struct mmc_cmd *cmd, blocks = data->blocks; writel(CMD_INTS_MASK, &host->base->msdc_int); + writel(DATA_INTS_MASK, &host->base->msdc_int); writel(blocks, &host->base->sdc_blk_num); writel(cmd->cmdarg, &host->base->sdc_arg); writel(rawcmd, &host->base->sdc_cmd); @@ -677,13 +677,9 @@ static int msdc_start_data(struct msdc_host *host, struct mmc_data *data) u32 size; int ret; - WATCHDOG_RESET(); - if (data->flags == MMC_DATA_WRITE) host->last_data_write = 1; - writel(DATA_INTS_MASK, &host->base->msdc_int); - size = data->blocks * data->blocksize; if (data->flags == MMC_DATA_WRITE) |