diff options
author | Sarthak Garg <sartgarg@codeaurora.org> | 2020-05-22 12:32:24 +0300 |
---|---|---|
committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-05-28 12:22:15 +0300 |
commit | 97306b631d838667204bd6eaa59e72df1aabbd68 (patch) | |
tree | 675f3284ae4fa9d56a4d3ba04e386564cb81a255 /Documentation/devicetree | |
parent | b91da9290979fee2fe2a67f9445d957861fadf6a (diff) | |
download | linux-97306b631d838667204bd6eaa59e72df1aabbd68.tar.xz |
dt-bindings: mmc: Add information for DLL register properties
Add information regarding DLL register properties for getting board
specific configurations. These DLL register settings may vary from
board to board.
Signed-off-by: Sarthak Garg <sartgarg@codeaurora.org>
Link: https://lore.kernel.org/r/1590139950-7288-3-git-send-email-sartgarg@codeaurora.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r-- | Documentation/devicetree/bindings/mmc/sdhci-msm.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-msm.txt b/Documentation/devicetree/bindings/mmc/sdhci-msm.txt index 481f692fd502..b8e1d2b7aea9 100644 --- a/Documentation/devicetree/bindings/mmc/sdhci-msm.txt +++ b/Documentation/devicetree/bindings/mmc/sdhci-msm.txt @@ -47,6 +47,13 @@ Required properties: "cal" - reference clock for RCLK delay calibration (optional) "sleep" - sleep clock for RCLK delay calibration (optional) +- qcom,ddr-config: Certain chipsets and platforms require particular settings + for the DDR_CONFIG register. Use this field to specify the register + value as per the Hardware Programming Guide. + +- qcom,dll-config: Chipset and Platform specific value. Use this field to + specify the DLL_CONFIG register value as per Hardware Programming Guide. + Example: sdhc_1: sdhci@f9824900 { @@ -64,6 +71,9 @@ Example: clocks = <&gcc GCC_SDCC1_APPS_CLK>, <&gcc GCC_SDCC1_AHB_CLK>; clock-names = "core", "iface"; + + qcom,dll-config = <0x000f642c>; + qcom,ddr-config = <0x80040868>; }; sdhc_2: sdhci@f98a4900 { @@ -81,4 +91,7 @@ Example: clocks = <&gcc GCC_SDCC2_APPS_CLK>, <&gcc GCC_SDCC2_AHB_CLK>; clock-names = "core", "iface"; + + qcom,dll-config = <0x0007642c>; + qcom,ddr-config = <0x80040868>; }; |