diff options
Diffstat (limited to 'target/linux/mediatek/patches-4.14/0155-mmc-mediatek-add-busy_check-support.patch')
| -rw-r--r-- | target/linux/mediatek/patches-4.14/0155-mmc-mediatek-add-busy_check-support.patch | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/target/linux/mediatek/patches-4.14/0155-mmc-mediatek-add-busy_check-support.patch b/target/linux/mediatek/patches-4.14/0155-mmc-mediatek-add-busy_check-support.patch new file mode 100644 index 0000000000..1e7aa7e7d7 --- /dev/null +++ b/target/linux/mediatek/patches-4.14/0155-mmc-mediatek-add-busy_check-support.patch @@ -0,0 +1,72 @@ +From 788d269aee4c612d5cd97b896ea5d22f19137097 Mon Sep 17 00:00:00 2001 +From: Chaotian Jing <chaotian.jing@mediatek.com> +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 <chaotian.jing@mediatek.com> +Tested-by: Sean Wang <sean.wang@mediatek.com> +Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> +--- + drivers/mmc/host/mtk-sd.c | 7 +++++++ + 1 file changed, 7 insertions(+) + +diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c +index 8113bacc1540..eceaee86ba4d 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); +-- +2.11.0 + |