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Subject[PATCH 3/6] arm64: dts: meson: fix mmc pin bias
Date
Clk pin does not require bias, data strobe should be pulled low.
The rest of the pin (data and cmd) are pulled up.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
---
.../arm64/boot/dts/amlogic/meson-axg-s400.dts | 4 +--
arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 31 ++++++++++++----
arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi | 35 +++++++++++++------
arch/arm64/boot/dts/amlogic/meson-gxl.dtsi | 35 +++++++++++++------
4 files changed, 76 insertions(+), 29 deletions(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
index 75fe1a2c49d0..4cd2d5951822 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
@@ -482,8 +482,8 @@

/* emmc storage */
&sd_emmc_c {
- status = "disabled";
- pinctrl-0 = <&emmc_pins>;
+ status = "okay";
+ pinctrl-0 = <&emmc_pins>, <&emmc_ds_pins>;
pinctrl-1 = <&emmc_clk_gate_pins>;
pinctrl-names = "default", "clk-gate";

diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
index 34704fecf756..38169c85e91f 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
@@ -299,7 +299,7 @@
};

emmc_pins: emmc {
- mux {
+ mux-0 {
groups = "emmc_nand_d0",
"emmc_nand_d1",
"emmc_nand_d2",
@@ -308,14 +308,26 @@
"emmc_nand_d5",
"emmc_nand_d6",
"emmc_nand_d7",
- "emmc_clk",
- "emmc_cmd",
- "emmc_ds";
+ "emmc_cmd";
+ function = "emmc";
+ bias-pull-up;
+ };
+
+ mux-1 {
+ groups = "emmc_clk";
function = "emmc";
bias-disable;
};
};

+ emmc_ds_pins: emmc_ds {
+ mux {
+ groups = "emmc_ds";
+ function = "emmc";
+ bias-pull-down;
+ };
+ };
+
emmc_clk_gate_pins: emmc_clk_gate {
mux {
groups = "BOOT_8";
@@ -559,13 +571,18 @@
};

sdio_pins: sdio {
- mux {
+ mux-0 {
groups = "sdio_d0",
"sdio_d1",
"sdio_d2",
"sdio_d3",
- "sdio_cmd",
- "sdio_clk";
+ "sdio_cmd";
+ function = "sdio";
+ bias-pull-up;
+ };
+
+ mux-1 {
+ groups = "sdio_clk";
function = "sdio";
bias-disable;
};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
index a60d3652beee..f734faaf7b78 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
@@ -381,10 +381,15 @@
};

emmc_pins: emmc {
- mux {
+ mux-0 {
groups = "emmc_nand_d07",
- "emmc_cmd",
- "emmc_clk";
+ "emmc_cmd";
+ function = "emmc";
+ bias-pull-up;
+ };
+
+ mux-1 {
+ groups = "emmc_clk";
function = "emmc";
bias-disable;
};
@@ -394,7 +399,7 @@
mux {
groups = "emmc_ds";
function = "emmc";
- bias-disable;
+ bias-pull-down;
};
};

@@ -436,13 +441,18 @@
};

sdcard_pins: sdcard {
- mux {
+ mux-0 {
groups = "sdcard_d0",
"sdcard_d1",
"sdcard_d2",
"sdcard_d3",
- "sdcard_cmd",
- "sdcard_clk";
+ "sdcard_cmd";
+ function = "sdcard";
+ bias-pull-up;
+ };
+
+ mux-1 {
+ groups = "sdcard_clk";
function = "sdcard";
bias-disable;
};
@@ -457,13 +467,18 @@
};

sdio_pins: sdio {
- mux {
+ mux-0 {
groups = "sdio_d0",
"sdio_d1",
"sdio_d2",
"sdio_d3",
- "sdio_cmd",
- "sdio_clk";
+ "sdio_cmd";
+ function = "sdio";
+ bias-pull-up;
+ };
+
+ mux-1 {
+ groups = "sdio_clk";
function = "sdio";
bias-disable;
};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
index 3093ae421b17..c959456bacc6 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
@@ -326,10 +326,15 @@
};

emmc_pins: emmc {
- mux {
+ mux-0 {
groups = "emmc_nand_d07",
- "emmc_cmd",
- "emmc_clk";
+ "emmc_cmd";
+ function = "emmc";
+ bias-pull-up;
+ };
+
+ mux-1 {
+ groups = "emmc_clk";
function = "emmc";
bias-disable;
};
@@ -339,7 +344,7 @@
mux {
groups = "emmc_ds";
function = "emmc";
- bias-disable;
+ bias-pull-down;
};
};

@@ -381,13 +386,18 @@
};

sdcard_pins: sdcard {
- mux {
+ mux-0 {
groups = "sdcard_d0",
"sdcard_d1",
"sdcard_d2",
"sdcard_d3",
- "sdcard_cmd",
- "sdcard_clk";
+ "sdcard_cmd";
+ function = "sdcard";
+ bias-pull-up;
+ };
+
+ mux-1 {
+ groups = "sdcard_clk";
function = "sdcard";
bias-disable;
};
@@ -402,13 +412,18 @@
};

sdio_pins: sdio {
- mux {
+ mux-0 {
groups = "sdio_d0",
"sdio_d1",
"sdio_d2",
"sdio_d3",
- "sdio_cmd",
- "sdio_clk";
+ "sdio_cmd";
+ function = "sdio";
+ bias-pull-up;
+ };
+
+ mux-1 {
+ groups = "sdio_clk";
function = "sdio";
bias-disable;
};
--
2.20.1
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