From 788d269aee4c612d5cd97b896ea5d22f19137097 Mon Sep 17 00:00:00 2001 From: Chaotian Jing Date: Mon, 16 Oct 2017 09:46:34 +0800 Subject: [PATCH 155/224] 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 Tested-by: Sean Wang Signed-off-by: Ulf Hansson --- drivers/mmc/host/mtk-sd.c | 7 +++++++ 1 file changed, 7 insertions(+) --- a/drivers/mmc/host/mtk-sd.c +++ b/drivers/mmc/host/mtk-sd.c @@ -318,6 +318,7 @@ struct mtk_mmc_compatible { u32 pad_tune_reg; bool async_fifo; bool data_tune; + bool busy_check; }; struct msdc_tune_para { @@ -382,6 +383,7 @@ static const struct mtk_mmc_compatible m .pad_tune_reg = MSDC_PAD_TUNE, .async_fifo = false, .data_tune = false, + .busy_check = false, }; static const struct mtk_mmc_compatible mt8173_compat = { @@ -390,6 +392,7 @@ static const struct mtk_mmc_compatible m .pad_tune_reg = MSDC_PAD_TUNE, .async_fifo = false, .data_tune = false, + .busy_check = false, }; static const struct mtk_mmc_compatible mt2701_compat = { @@ -398,6 +401,7 @@ static const struct mtk_mmc_compatible m .pad_tune_reg = MSDC_PAD_TUNE0, .async_fifo = true, .data_tune = true, + .busy_check = false, }; static const struct mtk_mmc_compatible mt2712_compat = { @@ -406,6 +410,7 @@ static const struct mtk_mmc_compatible m .pad_tune_reg = MSDC_PAD_TUNE0, .async_fifo = true, .data_tune = true, + .busy_check = true, }; static const struct of_device_id msdc_of_ids[] = { @@ -1277,6 +1282,8 @@ static void msdc_init_hw(struct msdc_hos 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);