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tm2: emmc run hs400 200M [1/1]

Browse Source 
PD#SWPL-5658

Problem:
emmc run hs200 200M now

Solution:
set emmc busmode to hs400 200M

Verify:
passed on t962e2 ab311

Change-Id: If5fef5c3b55cc95152b0d5d19bb5a56b293aafcf
Signed-off-by: ruixuan.li <ruixuan.li@amlogic.com>
Signed-off-by: Ruixuan Li <ruixuan.li@amlogic.com>
Signed-off-by: Luan Yuan <luan.yuan@amlogic.com>
This commit is contained in:
ruixuan.li
2019-04-02 20:37:38 +08:00
committed by Luan Yuan
parent 43dc365297
commit a07f7d93d2
3 changed files with 7 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm/boot/dts/amlogic/sm1_s905x3_ac213.dts
View File

@@ -1636,8 +1636,7 @@
"MMC_CAP_HW_RESET",
"MMC_CAP_ERASE",
"MMC_CAP_CMD23";
caps2 = "MMC_CAP2_HS200";
/* "MMC_CAP2_HS400";*/
caps2 = "MMC_CAP2_HS200", "MMC_CAP2_HS400";
f_min = <400000>;
f_max = <200000000>;
};

3
arch/arm64/boot/dts/amlogic/sm1_s905x3_ac213.dts
View File

@@ -1712,8 +1712,7 @@
"MMC_CAP_HW_RESET",
"MMC_CAP_ERASE",
"MMC_CAP_CMD23";
caps2 = "MMC_CAP2_HS200";
/* "MMC_CAP2_HS400";*/
caps2 = "MMC_CAP2_HS200", "MMC_CAP2_HS400";
f_min = <400000>;
f_max = <200000000>;
};

9
drivers/amlogic/mmc/aml_sd_emmc_v3.c
View File

@@ -1614,6 +1614,7 @@ int aml_emmc_hs200_tl1(struct mmc_host *mmc)
writel(vclkc, host->base + SD_EMMC_CLOCK_V3);
pr_info("[%s][%d] clk config:0x%x\n",
__func__, __LINE__, readl(host->base + SD_EMMC_CLOCK_V3));
for (i = 0; i < 63; i++) {
retry_times = 0;
delay2 += (1 << 24);
@@ -1622,6 +1623,7 @@ retry:
err = emmc_eyetest_log(mmc, 9);
if (err)
continue;
count = fbinary(pdata->align[9]);
if (((count >= 14) && (count <= 20))
|| ((count >= 48) && (count <= 54))) {
@@ -1939,11 +1941,10 @@ int aml_post_hs400_timming(struct mmc_host *mmc)
struct amlsd_platform *pdata = mmc_priv(mmc);
struct amlsd_host *host = pdata->host;
aml_sd_emmc_clktest(mmc);
if ((host->data->chip_type == MMC_CHIP_TL1)
|| (host->data->chip_type == MMC_CHIP_SM1))
aml_emmc_hs400_tl1(mmc);
else if (host->data->chip_type == MMC_CHIP_G12B)
if (host->data->chip_type == MMC_CHIP_G12B)
aml_emmc_hs400_Revb(mmc);
else if (host->data->chip_type >= MMC_CHIP_TL1)
aml_emmc_hs400_tl1(mmc);
else
aml_emmc_hs400_general(mmc);
return 0;