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| author | Chaotian Jing <chaotian.jing@mediatek.com> | 2017-10-16 09:46:34 +0800 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2017-11-02 15:20:24 +0100 |
| commit | acde28c434623bde0812cb3051eeea63428871e8 (patch) | |
| tree | b3820e2117a9f7d2270731b7bac75b074a32aa7d /drivers/mmc | |
| parent | 2fea581926703a7cbcf92fa7e3d74d83b5e40d3c (diff) | |
| download | linux-acde28c434623bde0812cb3051eeea63428871e8.tar.gz | |
mmc: mediatek: add busy_check support
bit7 of PATCH_BIT1 has different meaning in new design, to compatible with previous platform, clear this bit in new platform. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Tested-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/mtk-sd.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c index c17168ad2be0..650b94498f7c 100644 --- a/drivers/mmc/host/mtk-sd.c +++ b/drivers/mmc/host/mtk-sd.c @@ -316,6 +316,7 @@ struct mtk_mmc_compatible { u32 pad_tune_reg; bool async_fifo; bool data_tune; + bool busy_check; }; struct msdc_tune_para { @@ -380,6 +381,7 @@ static const struct mtk_mmc_compatible mt8135_compat = { .pad_tune_reg = MSDC_PAD_TUNE, .async_fifo = false, .data_tune = false, + .busy_check = false, }; static const struct mtk_mmc_compatible mt8173_compat = { @@ -388,6 +390,7 @@ static const struct mtk_mmc_compatible mt8173_compat = { .pad_tune_reg = MSDC_PAD_TUNE, .async_fifo = false, .data_tune = false, + .busy_check = false, }; static const struct mtk_mmc_compatible mt2701_compat = { @@ -396,6 +399,7 @@ static const struct mtk_mmc_compatible mt2701_compat = { .pad_tune_reg = MSDC_PAD_TUNE0, .async_fifo = true, .data_tune = true, + .busy_check = false, }; static const struct mtk_mmc_compatible mt2712_compat = { @@ -404,6 +408,7 @@ static const struct mtk_mmc_compatible mt2712_compat = { .pad_tune_reg = MSDC_PAD_TUNE0, .async_fifo = true, .data_tune = true, + .busy_check = true, }; static const struct of_device_id msdc_of_ids[] = { @@ -1275,6 +1280,8 @@ static void msdc_init_hw(struct msdc_host *host) sdr_set_field(host->base + MSDC_PATCH_BIT, MSDC_CKGEN_MSDC_DLY_SEL, 1); writel(0xffff4089, host->base + MSDC_PATCH_BIT1); sdr_set_bits(host->base + EMMC50_CFG0, EMMC50_CFG_CFCSTS_SEL); + if (host->dev_comp->busy_check) + sdr_clr_bits(host->base + MSDC_PATCH_BIT1, (1 << 7)); if (host->dev_comp->async_fifo) { sdr_set_field(host->base + MSDC_PATCH_BIT2, MSDC_PB2_RESPWAIT, 3); |