diff options
| author | Chaotian Jing <chaotian.jing@mediatek.com> | 2017-10-16 04:46:31 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2017-11-02 17:20:23 +0300 |
| commit | 7f3d58523d12e233de9896fd26781862ca4985d6 (patch) | |
| tree | 6754ead7685b393948ee5765c8a32feb50cfbf71 /drivers/mmc/host/mtk-sd.c | |
| parent | 689362b3c9ebfb8c6f8f903d107fb784d78e79b1 (diff) | |
| download | linux-7f3d58523d12e233de9896fd26781862ca4985d6.tar.xz | |
mmc: mediatek: make hs400_tune_response only for mt8173
the origin design of hs400_tune_response is for mt8173 because of
mt8173 has a special design. for doing that, we add a new member
"compatible", by now it's only for mt8173.
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/host/mtk-sd.c')
| -rw-r--r-- | drivers/mmc/host/mtk-sd.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c index 407745ab5c0a..a979e2791485 100644 --- a/drivers/mmc/host/mtk-sd.c +++ b/drivers/mmc/host/mtk-sd.c @@ -300,6 +300,7 @@ struct msdc_save_para { struct mtk_mmc_compatible { u8 clk_div_bits; + bool hs400_tune; /* only used for MT8173 */ }; struct msdc_tune_para { @@ -360,18 +361,22 @@ struct msdc_host { static const struct mtk_mmc_compatible mt8135_compat = { .clk_div_bits = 8, + .hs400_tune = false, }; static const struct mtk_mmc_compatible mt8173_compat = { .clk_div_bits = 8, + .hs400_tune = true, }; static const struct mtk_mmc_compatible mt2701_compat = { .clk_div_bits = 12, + .hs400_tune = false, }; static const struct mtk_mmc_compatible mt2712_compat = { .clk_div_bits = 12, + .hs400_tune = false, }; static const struct of_device_id msdc_of_ids[] = { @@ -666,7 +671,8 @@ static void msdc_set_mclk(struct msdc_host *host, unsigned char timing, u32 hz) host->base + PAD_CMD_TUNE); } - if (timing == MMC_TIMING_MMC_HS400) + if (timing == MMC_TIMING_MMC_HS400 && + host->dev_comp->hs400_tune) sdr_set_field(host->base + PAD_CMD_TUNE, MSDC_PAD_TUNE_CMDRRDLY, host->hs400_cmd_int_delay); @@ -1594,7 +1600,8 @@ static int msdc_execute_tuning(struct mmc_host *mmc, u32 opcode) struct msdc_host *host = mmc_priv(mmc); int ret; - if (host->hs400_mode) + if (host->hs400_mode && + host->dev_comp->hs400_tune) ret = hs400_tune_response(mmc, opcode); else ret = msdc_tune_response(mmc, opcode); |