lkml.org 
[lkml]   [2018]   [Dec]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH V2 2/3] arm64: dts: tegra210: Add SDMMC Auto-cal settings
Date
Add SDMMC initial pad offsets used by auto calibration process.

Add SDMMC fixed drive strengths used when calibration timeouts.
Fixed drive strengths are based on Pre SI Analysis of the pads.

Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
---
arch/arm64/boot/dts/nvidia/tegra186.dtsi | 2 ++
arch/arm64/boot/dts/nvidia/tegra194.dtsi | 34 +++++++++++++++++++
arch/arm64/boot/dts/nvidia/tegra210.dtsi | 57 ++++++++++++++++++++++++++++++--
3 files changed, 91 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
index 2f3c8e29520d..0631bb9bfcc3 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
@@ -311,6 +311,8 @@
nvidia,pad-autocal-pull-down-offset-hs400 = <0x05>;
nvidia,pad-autocal-pull-up-offset-1v8-timeout = <0x0a>;
nvidia,pad-autocal-pull-down-offset-1v8-timeout = <0x0a>;
+ nvidia,pad-autocal-pull-up-offset-3v3-timeout = <0x0a>;
+ nvidia,pad-autocal-pull-down-offset-3v3-timeout = <0x0a>;
nvidia,default-tap = <0x5>;
nvidia,default-trim = <0x9>;
nvidia,dqs-trim = <63>;
diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index c2091bb16546..3fab6802c335 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -301,6 +301,17 @@
clock-names = "sdhci";
resets = <&bpmp TEGRA194_RESET_SDMMC1>;
reset-names = "sdhci";
+ nvidia,pad-autocal-pull-up-offset-3v3-timeout =
+ <0x07>;
+ nvidia,pad-autocal-pull-down-offset-3v3-timeout =
+ <0x07>;
+ nvidia,pad-autocal-pull-up-offset-1v8-timeout = <0x06>;
+ nvidia,pad-autocal-pull-down-offset-1v8-timeout =
+ <0x07>;
+ nvidia,pad-autocal-pull-up-offset-sdr104 = <0x00>;
+ nvidia,pad-autocal-pull-down-offset-sdr104 = <0x00>;
+ nvidia,default-tap = <0x9>;
+ nvidia,default-trim = <0x5>;
status = "disabled";
};

@@ -312,6 +323,18 @@
clock-names = "sdhci";
resets = <&bpmp TEGRA194_RESET_SDMMC3>;
reset-names = "sdhci";
+ nvidia,pad-autocal-pull-up-offset-1v8 = <0x00>;
+ nvidia,pad-autocal-pull-down-offset-1v8 = <0x7a>;
+ nvidia,pad-autocal-pull-up-offset-3v3-timeout = <0x07>;
+ nvidia,pad-autocal-pull-down-offset-3v3-timeout =
+ <0x07>;
+ nvidia,pad-autocal-pull-up-offset-1v8-timeout = <0x06>;
+ nvidia,pad-autocal-pull-down-offset-1v8-timeout =
+ <0x07>;
+ nvidia,pad-autocal-pull-up-offset-sdr104 = <0x00>;
+ nvidia,pad-autocal-pull-down-offset-sdr104 = <0x00>;
+ nvidia,default-tap = <0x9>;
+ nvidia,default-trim = <0x5>;
status = "disabled";
};

@@ -323,6 +346,17 @@
clock-names = "sdhci";
resets = <&bpmp TEGRA194_RESET_SDMMC4>;
reset-names = "sdhci";
+ nvidia,pad-autocal-pull-up-offset-hs400 = <0x00>;
+ nvidia,pad-autocal-pull-down-offset-hs400 = <0x00>;
+ nvidia,pad-autocal-pull-up-offset-1v8-timeout = <0x0a>;
+ nvidia,pad-autocal-pull-down-offset-1v8-timeout =
+ <0x0a>;
+ nvidia,pad-autocal-pull-up-offset-3v3-timeout = <0x0a>;
+ nvidia,pad-autocal-pull-down-offset-3v3-timeout =
+ <0x0a>;
+ nvidia,default-tap = <0x8>;
+ nvidia,default-trim = <0x14>;
+ nvidia,dqs-trim = <40>;
status = "disabled";
};

diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
index 2205d66b0443..41408df9d4e9 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
@@ -476,6 +476,48 @@
compatible = "nvidia,tegra210-pinmux";
reg = <0x0 0x700008d4 0x0 0x29c>, /* Pad control registers */
<0x0 0x70003000 0x0 0x294>; /* Mux registers */
+ sdmmc1_3v3_drv: sdmmc1-3v3-drv {
+ sdmmc1 {
+ nvidia,pins = "drive_sdmmc1";
+ nvidia,pull-down-strength = <0x8>;
+ nvidia,pull-up-strength = <0x8>;
+ };
+ };
+ sdmmc1_1v8_drv: sdmmc1-1v8-drv {
+ sdmmc1 {
+ nvidia,pins = "drive_sdmmc1";
+ nvidia,pull-down-strength = <0x4>;
+ nvidia,pull-up-strength = <0x3>;
+ };
+ };
+ sdmmc2_1v8_drv: sdmmc2-1v8-drv {
+ sdmmc2 {
+ nvidia,pins = "drive_sdmmc2";
+ nvidia,pull-down-strength = <0x10>;
+ nvidia,pull-up-strength = <0x10>;
+ };
+ };
+ sdmmc3_3v3_drv: sdmmc3-3v3-drv {
+ sdmmc3 {
+ nvidia,pins = "drive_sdmmc3";
+ nvidia,pull-down-strength = <0x8>;
+ nvidia,pull-up-strength = <0x8>;
+ };
+ };
+ sdmmc3_1v8_drv: sdmmc3-1v8-drv {
+ sdmmc3 {
+ nvidia,pins = "drive_sdmmc3";
+ nvidia,pull-down-strength = <0x4>;
+ nvidia,pull-up-strength = <0x3>;
+ };
+ };
+ sdmmc4_1v8_drv: sdmmc4-1v8-drv {
+ sdmmc4 {
+ nvidia,pins = "drive_sdmmc4";
+ nvidia,pull-down-strength = <0x10>;
+ nvidia,pull-up-strength = <0x10>;
+ };
+ };
};

/*
@@ -1050,9 +1092,12 @@
clock-names = "sdhci";
resets = <&tegra_car 14>;
reset-names = "sdhci";
- pinctrl-names = "sdmmc-3v3", "sdmmc-1v8";
+ pinctrl-names = "sdmmc-3v3", "sdmmc-1v8",
+ "sdmmc-3v3-drv", "sdmmc-1v8-drv";
pinctrl-0 = <&sdmmc1_3v3>;
pinctrl-1 = <&sdmmc1_1v8>;
+ pinctrl-2 = <&sdmmc1_3v3_drv>;
+ pinctrl-3 = <&sdmmc1_1v8_drv>;
nvidia,pad-autocal-pull-up-offset-3v3 = <0x00>;
nvidia,pad-autocal-pull-down-offset-3v3 = <0x7d>;
nvidia,pad-autocal-pull-up-offset-1v8 = <0x7b>;
@@ -1075,6 +1120,8 @@
clock-names = "sdhci";
resets = <&tegra_car 9>;
reset-names = "sdhci";
+ pinctrl-names = "sdmmc-1v8-drv";
+ pinctrl-0 = <&sdmmc2_1v8_drv>;
nvidia,pad-autocal-pull-up-offset-1v8 = <0x05>;
nvidia,pad-autocal-pull-down-offset-1v8 = <0x05>;
nvidia,default-tap = <0x8>;
@@ -1090,9 +1137,12 @@
clock-names = "sdhci";
resets = <&tegra_car 69>;
reset-names = "sdhci";
- pinctrl-names = "sdmmc-3v3", "sdmmc-1v8";
+ pinctrl-names = "sdmmc-3v3", "sdmmc-1v8",
+ "sdmmc-3v3-drv", "sdmmc-1v8-drv";
pinctrl-0 = <&sdmmc3_3v3>;
pinctrl-1 = <&sdmmc3_1v8>;
+ pinctrl-2 = <&sdmmc3_3v3_drv>;
+ pinctrl-3 = <&sdmmc3_1v8_drv>;
nvidia,pad-autocal-pull-up-offset-3v3 = <0x00>;
nvidia,pad-autocal-pull-down-offset-3v3 = <0x7d>;
nvidia,pad-autocal-pull-up-offset-1v8 = <0x7b>;
@@ -1110,6 +1160,9 @@
clock-names = "sdhci";
resets = <&tegra_car 15>;
reset-names = "sdhci";
+ pinctrl-names = "sdmmc-3v3-drv", "sdmmc-1v8-drv";
+ pinctrl-0 = <&sdmmc4_1v8_drv>;
+ pinctrl-1 = <&sdmmc4_1v8_drv>;
nvidia,pad-autocal-pull-up-offset-1v8 = <0x05>;
nvidia,pad-autocal-pull-down-offset-1v8 = <0x05>;
nvidia,default-tap = <0x8>;
--
2.7.4
\
 
 \ /
  Last update: 2018-12-19 23:59    [W:0.066 / U:5.768 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site