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Message-Id: <20201105114804.18326-1-m.szyprowski@samsung.com>
Date:   Thu,  5 Nov 2020 12:48:04 +0100
From:   Marek Szyprowski <m.szyprowski@...sung.com>
To:     linux-samsung-soc@...r.kernel.org
Cc:     Marek Szyprowski <m.szyprowski@...sung.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Markus Reichl <m.reichl@...etechno.de>,
        Rob Herring <robh+dt@...nel.org>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] ARM: dts: exynos: Use fixed index for the MMC devices

Recently introduced asynchronous probe on the MMC devices can shuffle
block IDs in the system. Pin them to values equal to the physical MMC bus
number to ease booting in environments where UUIDs are not practical.

Use newly introduced aliases for mmcblk devices from commit fa2d0aa96941
("mmc: core: Allow setting slot index via device tree alias").

Suggested-by: Markus Reichl <m.reichl@...etechno.de>
Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
---
 arch/arm/boot/dts/exynos3250.dtsi | 3 +++
 arch/arm/boot/dts/exynos4.dtsi    | 2 ++
 arch/arm/boot/dts/exynos4210.dtsi | 1 +
 arch/arm/boot/dts/exynos4412.dtsi | 1 +
 arch/arm/boot/dts/exynos5250.dtsi | 4 ++++
 arch/arm/boot/dts/exynos5260.dtsi | 3 +++
 arch/arm/boot/dts/exynos5410.dtsi | 3 +++
 arch/arm/boot/dts/exynos5420.dtsi | 3 +++
 8 files changed, 20 insertions(+)

diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
index 75ed82600ec8..510080bb4102 100644
--- a/arch/arm/boot/dts/exynos3250.dtsi
+++ b/arch/arm/boot/dts/exynos3250.dtsi
@@ -28,6 +28,9 @@
 	aliases {
 		pinctrl0 = &pinctrl_0;
 		pinctrl1 = &pinctrl_1;
+		mmc0 = &mshc_0;
+		mmc1 = &mshc_1;
+		mmc2 = &mshc_2;
 		mshc0 = &mshc_0;
 		mshc1 = &mshc_1;
 		mshc2 = &mshc_2;
diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
index a1e54449f33f..e266f890eea4 100644
--- a/arch/arm/boot/dts/exynos4.dtsi
+++ b/arch/arm/boot/dts/exynos4.dtsi
@@ -45,6 +45,8 @@
 		fimc1 = &fimc_1;
 		fimc2 = &fimc_2;
 		fimc3 = &fimc_3;
+		mmc1 = &sdhci_1;
+		mmc2 = &sdhci_2;
 		serial0 = &serial_0;
 		serial1 = &serial_1;
 		serial2 = &serial_2;
diff --git a/arch/arm/boot/dts/exynos4210.dtsi b/arch/arm/boot/dts/exynos4210.dtsi
index fddc661ded28..f1d0d5959b7f 100644
--- a/arch/arm/boot/dts/exynos4210.dtsi
+++ b/arch/arm/boot/dts/exynos4210.dtsi
@@ -23,6 +23,7 @@
 	compatible = "samsung,exynos4210", "samsung,exynos4";
 
 	aliases {
+		mmc0 = &sdhci_0;
 		pinctrl0 = &pinctrl_0;
 		pinctrl1 = &pinctrl_1;
 		pinctrl2 = &pinctrl_2;
diff --git a/arch/arm/boot/dts/exynos4412.dtsi b/arch/arm/boot/dts/exynos4412.dtsi
index fa8e8d6bc4d5..9fcf7383eb9d 100644
--- a/arch/arm/boot/dts/exynos4412.dtsi
+++ b/arch/arm/boot/dts/exynos4412.dtsi
@@ -28,6 +28,7 @@
 		pinctrl3 = &pinctrl_3;
 		fimc-lite0 = &fimc_lite_0;
 		fimc-lite1 = &fimc_lite_1;
+		mmc0 = &mshc_0;
 		mshc0 = &mshc_0;
 	};
 
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 84677332a5a2..0a0436f92fac 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -30,6 +30,10 @@
 		gsc1 = &gsc_1;
 		gsc2 = &gsc_2;
 		gsc3 = &gsc_3;
+		mmc0 = &mmc_0;
+		mmc1 = &mmc_1;
+		mmc2 = &mmc_2;
+		mmc3 = &mmc_3;
 		mshc0 = &mmc_0;
 		mshc1 = &mmc_1;
 		mshc2 = &mmc_2;
diff --git a/arch/arm/boot/dts/exynos5260.dtsi b/arch/arm/boot/dts/exynos5260.dtsi
index 973448c4ad93..64bf1d8dc33b 100644
--- a/arch/arm/boot/dts/exynos5260.dtsi
+++ b/arch/arm/boot/dts/exynos5260.dtsi
@@ -21,6 +21,9 @@
 		i2c1 = &hsi2c_1;
 		i2c2 = &hsi2c_2;
 		i2c3 = &hsi2c_3;
+		mmc0 = &mmc_0;
+		mmc1 = &mmc_1;
+		mmc2 = &mmc_2;
 		pinctrl0 = &pinctrl_0;
 		pinctrl1 = &pinctrl_1;
 		pinctrl2 = &pinctrl_2;
diff --git a/arch/arm/boot/dts/exynos5410.dtsi b/arch/arm/boot/dts/exynos5410.dtsi
index 584ce62361b1..503859153769 100644
--- a/arch/arm/boot/dts/exynos5410.dtsi
+++ b/arch/arm/boot/dts/exynos5410.dtsi
@@ -24,6 +24,9 @@
 		pinctrl1 = &pinctrl_1;
 		pinctrl2 = &pinctrl_2;
 		pinctrl3 = &pinctrl_3;
+		mmc0 = &mmc_0;
+		mmc1 = &mmc_1;
+		mmc2 = &mmc_2;
 	};
 
 	cpus {
diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index 23a8fd5c8a6e..3a3eadd890fb 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -19,6 +19,9 @@
 	compatible = "samsung,exynos5420", "samsung,exynos5";
 
 	aliases {
+		mmc0 = &mmc_0;
+		mmc1 = &mmc_1;
+		mmc2 = &mmc_2;
 		mshc0 = &mmc_0;
 		mshc1 = &mmc_1;
 		mshc2 = &mmc_2;
-- 
2.17.1

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