sm1: emmc run hs200 busmode [1/1]

PD#SWPL-5404

Problem:
emmc report data crc error in hs200 busmode

Solution:
set hs200 co_phase to 2 and did not reset the
hs200 co_phase and tx_phase when adjust tuning is
find the error point in sm1

Verify:
verify pass on sm1_s905d3_ac200

Change-Id: I56aa8eb666fb55641db75878a3488f66c721bd6d
Signed-off-by: ruixuan.li <ruixuan.li@amlogic.com>

diff --git a/arch/arm64/boot/dts/amlogic/sm1_s905d3_ac200.dts b/arch/arm64/boot/dts/amlogic/sm1_s905d3_ac200.dts
index c764ed0..373a3a2 100644 (file)
--- a/arch/arm64/boot/dts/amlogic/sm1_s905d3_ac200.dts
+++ b/arch/arm64/boot/dts/amlogic/sm1_s905d3_ac200.dts
@@ -1443,10 +1443,10 @@
                         "MMC_CAP_HW_RESET",
                         "MMC_CAP_ERASE",
                         "MMC_CAP_CMD23";
-               /*caps2 = "MMC_CAP2_HS200";*/
+               caps2 = "MMC_CAP2_HS200";
                /* "MMC_CAP2_HS400";*/
                f_min = <400000>;
-               f_max = <50000000>;
+               f_max = <200000000>;
        };
 };
 

diff --git a/arch/arm64/boot/dts/amlogic/sm1_s905d3_skt.dts b/arch/arm64/boot/dts/amlogic/sm1_s905d3_skt.dts
index efc1e2d..511c736 100644 (file)
--- a/arch/arm64/boot/dts/amlogic/sm1_s905d3_skt.dts
+++ b/arch/arm64/boot/dts/amlogic/sm1_s905d3_skt.dts
@@ -1442,10 +1442,10 @@
                         "MMC_CAP_HW_RESET",
                         "MMC_CAP_ERASE",
                         "MMC_CAP_CMD23";
-               /*caps2 = "MMC_CAP2_HS200";*/
+               caps2 = "MMC_CAP2_HS200";
                /* "MMC_CAP2_HS400";*/
                f_min = <400000>;
-               f_max = <50000000>;
+               f_max = <200000000>;
        };
 };
 

diff --git a/drivers/amlogic/mmc/aml_sd_emmc.c b/drivers/amlogic/mmc/aml_sd_emmc.c
index deb56ca..8757b73 100644 (file)
--- a/drivers/amlogic/mmc/aml_sd_emmc.c
+++ b/drivers/amlogic/mmc/aml_sd_emmc.c
@@ -3626,7 +3626,7 @@ static struct meson_mmc_data mmc_data_sm1 = {
        .sdmmc.hs.core_phase = 3,
        .sdmmc.ddr.core_phase = 2,
        .sdmmc.ddr.tx_phase = 0,
-       .sdmmc.hs2.core_phase = 3,
+       .sdmmc.hs2.core_phase = 2,
        .sdmmc.hs2.tx_phase = 0,
        .sdmmc.hs4.tx_delay = 0,
        .sdmmc.sd_hs.core_phase = 3,

diff --git a/drivers/amlogic/mmc/aml_sd_emmc_v3.c b/drivers/amlogic/mmc/aml_sd_emmc_v3.c
index 0a8cae0..b04f790 100644 (file)
--- a/drivers/amlogic/mmc/aml_sd_emmc_v3.c
+++ b/drivers/amlogic/mmc/aml_sd_emmc_v3.c
@@ -1192,8 +1192,10 @@ tunning:
                nmatch = aml_sd_emmc_tuning_transfer(mmc, opcode,
                                blk_pattern, host->blk_test, blksz);
                if (nmatch != TUNING_NUM_PER_POINT) {
-                       clkc->core_phase = para->hs2.tx_phase;
-                       clkc->tx_phase = para->hs2.core_phase;
+                       if (host->data->chip_type != MMC_CHIP_SM1) {
+                               clkc->core_phase = para->hs2.tx_phase;
+                               clkc->tx_phase = para->hs2.core_phase;
+                       }
                        writel(vclk, host->base + SD_EMMC_CLOCK_V3);
                        pr_info("%s:try clock:0x%x>>>rx_tuning[%d] = %d\n",
                                mmc_hostname(host->mmc),