From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
[ Upstream commit d765a4f302cc046ca23453ba990d21120ceadbbd ]
After the commit 7320915c8861 ("mmc: Set PROBE_PREFER_ASYNCHRONOUS
for drivers that existed in v4.14"), the order of /dev/mmcblkN
was not fixed in some SoCs which have multiple sdhi controllers.
So, we were hard to use an sdhi device as rootfs by using
the kernel parameter like "root=/dev/mmcblkNpM".
According to the discussion on a mainling list [1], we can add
mmc aliases to fix the issue. So, add such aliases into Renesas
arm64 board dts files. Notes that mmc0 is an eMMC channel if
available.
[1]
https://lore.kernel.org/linux-arm-kernel/CAPDyKFptyEQNJu8cqzMt2WRFZcwEdjDiytMBp96nkoZyprTgmA@xxxxxxxxxxxxxx/
Fixes: 7320915c8861 ("mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.14")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/1614596786-22326-1-git-send-email-yoshihiro.shimoda.uh@xxxxxxxxxxx
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/arm64/boot/dts/renesas/hihope-common.dtsi | 3 +++
arch/arm64/boot/dts/renesas/r8a774a1-beacon-rzg2m-kit.dts | 3 +++
arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts | 2 ++
arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts | 3 +++
arch/arm64/boot/dts/renesas/salvator-common.dtsi | 3 +++
arch/arm64/boot/dts/renesas/ulcb-kf.dtsi | 1 +
arch/arm64/boot/dts/renesas/ulcb.dtsi | 2 ++
7 files changed, 17 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/hihope-common.dtsi b/arch/arm64/boot/dts/renesas/hihope-common.dtsi
index 2eda9f66ae81..e8bf6f0c4c40 100644
--- a/arch/arm64/boot/dts/renesas/hihope-common.dtsi
+++ b/arch/arm64/boot/dts/renesas/hihope-common.dtsi
@@ -12,6 +12,9 @@
aliases {
serial0 = &scif2;
serial1 = &hscif0;
+ mmc0 = &sdhi3;
+ mmc1 = &sdhi0;
+ mmc2 = &sdhi2;
};
chosen {
diff --git a/arch/arm64/boot/dts/renesas/r8a774a1-beacon-rzg2m-kit.dts b/arch/arm64/boot/dts/renesas/r8a774a1-beacon-rzg2m-kit.dts
index 2c5b057c30c6..ad26f5bf0648 100644
--- a/arch/arm64/boot/dts/renesas/r8a774a1-beacon-rzg2m-kit.dts
+++ b/arch/arm64/boot/dts/renesas/r8a774a1-beacon-rzg2m-kit.dts
@@ -21,6 +21,9 @@
serial4 = &hscif2;
serial5 = &scif5;
ethernet0 = &avb;
+ mmc0 = &sdhi3;
+ mmc1 = &sdhi0;
+ mmc2 = &sdhi2;
};
chosen {
diff --git a/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts b/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts
index ea87cb5a459c..33257c6440b2 100644
--- a/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts
+++ b/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts
@@ -17,6 +17,8 @@
aliases {
serial0 = &scif2;
serial1 = &hscif2;
+ mmc0 = &sdhi0;
+ mmc1 = &sdhi3;
};
chosen {
diff --git a/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts b/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
index e0ccca2222d2..b9e3b6762ff4 100644
--- a/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
+++ b/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
@@ -16,6 +16,9 @@
aliases {
serial0 = &scif2;
ethernet0 = &avb;
+ mmc0 = &sdhi3;
+ mmc1 = &sdhi0;
+ mmc2 = &sdhi1;
};
chosen {
diff --git a/arch/arm64/boot/dts/renesas/salvator-common.dtsi b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
index 6c643ed74fc5..ee82fcb7192d 100644
--- a/arch/arm64/boot/dts/renesas/salvator-common.dtsi
+++ b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
@@ -36,6 +36,9 @@
serial0 = &scif2;
serial1 = &hscif1;
ethernet0 = &avb;
+ mmc0 = &sdhi2;
+ mmc1 = &sdhi0;
+ mmc2 = &sdhi3;
};
chosen {
diff --git a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
index e9ed2597f1c2..61bd4df09df0 100644
--- a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
@@ -16,6 +16,7 @@
aliases {
serial1 = &hscif0;
serial2 = &scif1;
+ mmc2 = &sdhi3;
};
clksndsel: clksndsel {
diff --git a/arch/arm64/boot/dts/renesas/ulcb.dtsi b/arch/arm64/boot/dts/renesas/ulcb.dtsi
index 8f8d7371d8e2..e69e136d767a 100644
--- a/arch/arm64/boot/dts/renesas/ulcb.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb.dtsi
@@ -23,6 +23,8 @@
aliases {
serial0 = &scif2;
ethernet0 = &avb;
+ mmc0 = &sdhi2;
+ mmc1 = &sdhi0;
};
chosen {
--
2.30.2
