diff options
| author | Aisheng Dong <b29396@freescale.com> | 2014-08-27 15:26:28 +0800 |
|---|---|---|
| committer | Dong Aisheng <aisheng.dong@freescale.com> | 2015-11-01 01:45:05 +0800 |
| commit | 9607e20bb1ffdb6ec9027f8c8b17eac3a7c71015 (patch) | |
| tree | 1b60f2b101ed08e5f8ebe6c62ce82befdace1187 /drivers | |
| parent | a4e44a14519425770e51ed776b2e254888ef80b6 (diff) | |
mmc: sdhci-esdhc-imx: fix incorrect max timeout cout for uSDHC
The default sdhci code use the 1 << 27 as the max timeout counter to
to calculate the max_busy_timeout, however it's not correct for uSDHC
since its the max counter is 1 << 28.
Implement esdhc_get_max_timeout_cout to handle it correctly.
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
(cherry picked from commit 10fd0ad967c05cda16b25f862e2a45eb63d83a21)
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/sdhci-esdhc-imx.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 6bb2697da745..9138837ebe5e 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -990,6 +990,14 @@ static int esdhc_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs) return esdhc_change_pinstate(host, uhs); } +static unsigned int esdhc_get_max_timeout_count(struct sdhci_host *host) +{ + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct pltfm_imx_data *imx_data = pltfm_host->priv; + + return esdhc_is_usdhc(imx_data) ? 1 << 28 : 1 << 27; +} + static struct sdhci_ops sdhci_esdhc_ops = { .read_l = esdhc_readl_le, .read_w = esdhc_readw_le, @@ -999,6 +1007,7 @@ static struct sdhci_ops sdhci_esdhc_ops = { .set_clock = esdhc_pltfm_set_clock, .get_max_clock = esdhc_pltfm_get_max_clock, .get_min_clock = esdhc_pltfm_get_min_clock, + .get_max_timeout_count = esdhc_get_max_timeout_count, .get_ro = esdhc_pltfm_get_ro, .platform_bus_width = esdhc_pltfm_bus_width, .set_uhs_signaling = esdhc_set_uhs_signaling, |