target/linux/mediatek/patches-4.14/0155-mmc-mediatek-add-busy_check-support.patch

   1 From 788d269aee4c612d5cd97b896ea5d22f19137097 Mon Sep 17 00:00:00 2001
   2 From: Chaotian Jing <chaotian.jing@mediatek.com>
   3 Date: Mon, 16 Oct 2017 09:46:34 +0800
   4 Subject: [PATCH 155/224] mmc: mediatek: add busy_check support
   5
   6 bit7 of PATCH_BIT1 has different meaning in new design, to
   7 compatible with previous platform, clear this bit in new
   8 platform.
   9
  10 Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
  11 Tested-by: Sean Wang <sean.wang@mediatek.com>
  12 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
  13 ---
  14  drivers/mmc/host/mtk-sd.c | 7 +++++++
  15  1 file changed, 7 insertions(+)
  16
  17 --- a/drivers/mmc/host/mtk-sd.c
  18 +++ b/drivers/mmc/host/mtk-sd.c
  19 @@ -318,6 +318,7 @@ struct mtk_mmc_compatible {
  20         u32 pad_tune_reg;
  21         bool async_fifo;
  22         bool data_tune;
  23 +       bool busy_check;
  24  };
  25
  26  struct msdc_tune_para {
  27 @@ -382,6 +383,7 @@ static const struct mtk_mmc_compatible m
  28         .pad_tune_reg = MSDC_PAD_TUNE,
  29         .async_fifo = false,
  30         .data_tune = false,
  31 +       .busy_check = false,
  32  };
  33
  34  static const struct mtk_mmc_compatible mt8173_compat = {
  35 @@ -390,6 +392,7 @@ static const struct mtk_mmc_compatible m
  36         .pad_tune_reg = MSDC_PAD_TUNE,
  37         .async_fifo = false,
  38         .data_tune = false,
  39 +       .busy_check = false,
  40  };
  41
  42  static const struct mtk_mmc_compatible mt2701_compat = {
  43 @@ -398,6 +401,7 @@ static const struct mtk_mmc_compatible m
  44         .pad_tune_reg = MSDC_PAD_TUNE0,
  45         .async_fifo = true,
  46         .data_tune = true,
  47 +       .busy_check = false,
  48  };
  49
  50  static const struct mtk_mmc_compatible mt2712_compat = {
  51 @@ -406,6 +410,7 @@ static const struct mtk_mmc_compatible m
  52         .pad_tune_reg = MSDC_PAD_TUNE0,
  53         .async_fifo = true,
  54         .data_tune = true,
  55 +       .busy_check = true,
  56  };
  57
  58  static const struct of_device_id msdc_of_ids[] = {
  59 @@ -1277,6 +1282,8 @@ static void msdc_init_hw(struct msdc_hos
  60         sdr_set_field(host->base + MSDC_PATCH_BIT, MSDC_CKGEN_MSDC_DLY_SEL, 1);
  61         writel(0xffff4089, host->base + MSDC_PATCH_BIT1);
  62         sdr_set_bits(host->base + EMMC50_CFG0, EMMC50_CFG_CFCSTS_SEL);
  63 +       if (host->dev_comp->busy_check)
  64 +               sdr_clr_bits(host->base + MSDC_PATCH_BIT1, (1 << 7));
  65         if (host->dev_comp->async_fifo) {
  66                 sdr_set_field(host->base + MSDC_PATCH_BIT2,
  67                               MSDC_PB2_RESPWAIT, 3);