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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 v3 1/2] dt-bindings: exynos-dw-mshc-common: add exynos78xx variants
Date: Sun, 12 Mar 2023 16:03:15 +0300	[thread overview]
Message-ID: <1678626510.1783316-1-sleirsgoevy@gmail.com> (raw)
In-Reply-To: <1678626510.1783316-0-sleirsgoevy@gmail.com>

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,exynos78xx-dw-mshc" and
"samsung,exynos78xx-dw-mshc-smu" respectively, to denote exynos78xx
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 ++
 arch/arm64/boot/dts/exynos/exynos7885.dtsi                      | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml b/Documentation/devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml
index fdaa18481..a72a67792 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,exynos78xx-dw-mshc
+      - samsung,exynos78xx-dw-mshc-smu
       - axis,artpec8-dw-mshc
 
   reg:
diff --git a/arch/arm64/boot/dts/exynos/exynos7885.dtsi b/arch/arm64/boot/dts/exynos/exynos7885.dtsi
index 23c2e0bb0..4b94ac9da 100644
--- a/arch/arm64/boot/dts/exynos/exynos7885.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos7885.dtsi
@@ -294,7 +294,7 @@ pmu_system_controller: system-controller@11c80000 {
 		};
 
 		mmc_0: mmc@13500000 {
-			compatible = "samsung,exynos7-dw-mshc-smu";
+			compatible = "samsung,exynos78xx-dw-mshc-smu";
 			reg = <0x13500000 0x2000>;
 			interrupts = <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>;
 			#address-cells = <1>;
-- 
2.38.3



WARNING: multiple messages have this Message-ID (diff)
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 v3 1/2] dt-bindings: exynos-dw-mshc-common: add exynos78xx variants
Date: Sun, 12 Mar 2023 16:03:15 +0300	[thread overview]
Message-ID: <1678626510.1783316-1-sleirsgoevy@gmail.com> (raw)
In-Reply-To: <1678626510.1783316-0-sleirsgoevy@gmail.com>

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,exynos78xx-dw-mshc" and
"samsung,exynos78xx-dw-mshc-smu" respectively, to denote exynos78xx
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 ++
 arch/arm64/boot/dts/exynos/exynos7885.dtsi                      | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml b/Documentation/devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml
index fdaa18481..a72a67792 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,exynos78xx-dw-mshc
+      - samsung,exynos78xx-dw-mshc-smu
       - axis,artpec8-dw-mshc
 
   reg:
diff --git a/arch/arm64/boot/dts/exynos/exynos7885.dtsi b/arch/arm64/boot/dts/exynos/exynos7885.dtsi
index 23c2e0bb0..4b94ac9da 100644
--- a/arch/arm64/boot/dts/exynos/exynos7885.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos7885.dtsi
@@ -294,7 +294,7 @@ pmu_system_controller: system-controller@11c80000 {
 		};
 
 		mmc_0: mmc@13500000 {
-			compatible = "samsung,exynos7-dw-mshc-smu";
+			compatible = "samsung,exynos78xx-dw-mshc-smu";
 			reg = <0x13500000 0x2000>;
 			interrupts = <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>;
 			#address-cells = <1>;
-- 
2.38.3



_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2023-03-12 13:10 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-12 13:03 [PATCH v3 0/2] mmc: dw_mmc: fix DW MMC cores with 32-bit bus on 64-bit Linux systems Sergey Lisov
2023-03-12 13:03 ` Sergey Lisov
2023-03-12 13:03 ` [PATCH v3 2/2] mmc: dw_mmc: add an option to force 32-bit access to 64-bit FIFO Sergey Lisov
2023-03-12 13:03   ` Sergey Lisov
2023-03-12 13:03 ` Sergey Lisov [this message]
2023-03-12 13:03   ` [PATCH v3 1/2] dt-bindings: exynos-dw-mshc-common: add exynos78xx variants Sergey Lisov
2023-03-12 13:35   ` Krzysztof Kozlowski
2023-03-12 13:35     ` Krzysztof Kozlowski
2023-03-12 16:43     ` Sergey Lisov
2023-03-12 16:43     ` Sergey Lisov
2023-03-12 16:43     ` Sergey Lisov
2023-03-12 16:43     ` Sergey Lisov
2023-03-12 16:43     ` Sergey Lisov
     [not found] <640e0136.c20a0220.2d5bf.1959@mx.google.com>
2023-03-12 17:09 ` Krzysztof Kozlowski
2023-03-12 17:09   ` Krzysztof Kozlowski
2023-03-12 17:26   ` Sergey Lisov
2023-03-12 17:26   ` Sergey Lisov
2023-03-12 17:26   ` Sergey Lisov
2023-03-12 17:26   ` Sergey Lisov
2023-03-12 17:26   ` Sergey Lisov
     [not found] <640e0b2d.c20a0220.63661.19a4@mx.google.com>
2023-03-12 17:29 ` Krzysztof Kozlowski
2023-03-12 17:29   ` Krzysztof Kozlowski

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