According to ePAPR, chapter 2.3.4, the status property has
defined that it should be set to "disabled" when "the device
is not presently operational, but it might become operational
in the future".
So this patch disable dwmmc node by "status = disabled" in SOC
dts file and enable dwmmc node by "status = okay" in board specific
dts file.
Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@xxxxxxxxxxx>
---
arch/arm/boot/dts/exynos5250-arndale.dts | 10 ++--------
arch/arm/boot/dts/exynos5250-smdk5250.dts | 10 ++--------
arch/arm/boot/dts/exynos5250.dtsi | 4 ++++
3 files changed, 8 insertions(+), 16 deletions(-)
diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts
index 452d0b0..b741dd4 100644
--- a/arch/arm/boot/dts/exynos5250-arndale.dts
+++ b/arch/arm/boot/dts/exynos5250-arndale.dts
@@ -367,6 +367,7 @@
};
dwmmc_0: dwmmc0@12200000 {
+ status = "okay";
num-slots = <1>;
supports-highspeed;
broken-cd;
@@ -385,11 +386,8 @@
};
};
- dwmmc_1: dwmmc1@12210000 {
- status = "disabled";
- };
-
dwmmc_2: dwmmc2@12220000 {
+ status = "okay";
num-slots = <1>;
supports-highspeed;
fifo-depth = <0x80>;
@@ -408,10 +406,6 @@
};
};
- dwmmc_3: dwmmc3@12230000 {
- status = "disabled";
- };
-
spi_0: spi@12d20000 {
status = "disabled";
};
diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index 2538b32..bd19d55d 100644
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -141,6 +141,7 @@
};
dwmmc0@12200000 {
+ status = "okay";
num-slots = <1>;
supports-highspeed;
broken-cd;
@@ -158,11 +159,8 @@
};
};
- dwmmc1@12210000 {
- status = "disabled";
- };
-
dwmmc2@12220000 {
+ status = "okay";
num-slots = <1>;
supports-highspeed;
fifo-depth = <0x80>;
@@ -180,10 +178,6 @@
};
};
- dwmmc3@12230000 {
- status = "disabled";
- };
-
spi_0: spi@12d20000 {
status = "disabled";
};
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 3c970fe..b1b6f61 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -394,6 +394,7 @@
reg = <0x12200000 0x1000>;
clocks = <&clock 280>, <&clock 139>;
clock-names = "biu", "ciu";
+ status = "disabled";
};
dwmmc_1: dwmmc1@12210000 {
@@ -404,6 +405,7 @@
reg = <0x12210000 0x1000>;
clocks = <&clock 281>, <&clock 140>;
clock-names = "biu", "ciu";
+ status = "disabled";
};
dwmmc_2: dwmmc2@12220000 {
@@ -414,6 +416,7 @@
reg = <0x12220000 0x1000>;
clocks = <&clock 282>, <&clock 141>;
clock-names = "biu", "ciu";
+ status = "disabled";
};
dwmmc_3: dwmmc3@12230000 {
@@ -424,6 +427,7 @@
#size-cells = <0>;
clocks = <&clock 283>, <&clock 142>;
clock-names = "biu", "ciu";
+ status = "disabled";
};
i2s0: i2s@03830000 {
--
1.7.9.5
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