From: Sergey Lisov <sleirsgoevy@gmail.com>
To: Ulf Hansson <ulf.hansson@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Alim Akhtar <alim.akhtar@samsung.com>,
Jaehoon Chung <jh80.chung@samsung.com>
Cc: linux-mmc@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v5 1/3] dt-bindings: exynos-dw-mshc-common: add exynos7885 variants
Date: Sun, 12 Mar 2023 20:58:50 +0300 [thread overview]
Message-ID: <640e143e.050a0220.73b97.1b14@mx.google.com> (raw)
Some Samsung Exynos boards using the arm64 architecture have DW MMC
controllers configured for a 32-bit data bus but a 64-bit FIFO. On these
systems the 64-bit FIFO registers must be accessed in two 32-bit halves.
Add two new compatible strings, "samsung,exynos7885-dw-mshc" and
"samsung,exynos7885-dw-mshc-smu" respectively, to denote exynos7885
boards that need this quirk. But it's very possible that all
"samsung,exynos7-dw-mshc" boards are actually affected.
---
.../devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml b/Documentation/devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml
index fdaa18481..3eebaed2c 100644
--- a/Documentation/devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml
+++ b/Documentation/devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml
@@ -22,6 +22,8 @@ properties:
- samsung,exynos5420-dw-mshc-smu
- samsung,exynos7-dw-mshc
- samsung,exynos7-dw-mshc-smu
+ - samsung,exynos7885-dw-mshc
+ - samsung,exynos7885-dw-mshc-smu
- axis,artpec8-dw-mshc
reg:
--
2.38.3
next reply other threads:[~2023-03-12 18:16 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-12 17:58 Sergey Lisov [this message]
2023-03-12 17:58 [PATCH v5 1/3] dt-bindings: exynos-dw-mshc-common: add exynos7885 variants Sergey Lisov
2023-03-12 17:58 Sergey Lisov
2023-03-12 17:58 [PATCH v5 0/3] mmc: dw_mmc: fix DW MMC cores with 32-bit bus on 64-bit Linux systems Sergey Lisov
2023-03-12 17:58 ` [PATCH v5 1/3] dt-bindings: exynos-dw-mshc-common: add exynos7885 variants Sergey Lisov
2023-03-12 17:58 ` Sergey Lisov
2023-03-12 18:11 ` Krzysztof Kozlowski
2023-03-12 18:11 ` Krzysztof Kozlowski
2023-03-14 19:49 ` Krzysztof Kozlowski
2023-03-14 19:49 ` Krzysztof Kozlowski
2023-03-15 18:57 ` Sergey Lisov
2023-03-15 18:57 ` Sergey Lisov
2023-03-15 18:57 ` Sergey Lisov
2023-03-15 18:57 ` Sergey Lisov
2023-03-15 18:57 ` Sergey Lisov
2023-03-12 17:58 Sergey Lisov
2023-03-12 17:58 Sergey Lisov
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