Re: [PATCH] ARM: dts: exynos: Assign a fixed index to mmc devices on exynos4412 based ODROID boards

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Hi Marek,

Am 04.11.20 um 13:25 schrieb Marek Szyprowski:
Hi Markus,

On 04.11.2020 11:25, Markus Reichl wrote:
Recently introduced async probe on mmc devices can shuffle block IDs.
Pin them to fixed values to ease booting in evironments where UUIDs ar not practical.
Use newly introduced aliases for mmcblk devices from [1].

[1]
https://patchwork.kernel.org/patch/11747669/

Signed-off-by: Markus Reichl <m.reichl@xxxxxxxxxxxxx>
---
  arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 5 +++++
  1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
index a5c1ce1e396c..aa10d5bc7e1c 100644
--- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
+++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
@@ -13,6 +13,11 @@
  #include "exynos-mfc-reserved-memory.dtsi"
/ {
+	aliases {
+		mmc0 = &sdhci_2;
+		mmc1 = &mshc_0;

Like in the OdroidXU3-family patch, I would use 0 for the eMMC (mshc_0)
and 2 for the SD-card (sdhci_2).

How to deal then with sdhci_0 (from exynos4.dtsi) vc. mshc_0 (from exynos4412.dts)?


+	};
+
  	chosen {
  		stdout-path = &serial_1;
  	};

Best regards


Gruß,
--
Markus Reichl



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