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From: Eugen Hristev <eugen.hristev@microchip.com>
To: <robh+dt@kernel.org>, <claudiu.beznea@microchip.com>
Cc: <devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	Eugen Hristev <eugen.hristev@microchip.com>
Subject: [PATCH] ARM: dts: at91: sama7g5ek: align power rails for sdmmc0/1
Date: Thu, 24 Nov 2022 17:46:10 +0200	[thread overview]
Message-ID: <20221124154610.246790-1-eugen.hristev@microchip.com> (raw)

On this board SDMMC0 has a 1.8 signaled eMMC device powered at
3.3 V .
Hence, correctly describe the connected rails from the PMIC.

SDMMC1 is connected to a voltage switch that can change from
3.3V to 1.8V by a hardware controlled pin.
However SDMMC1 at the moment works only 3.3V mode (default speed,
no UHS-I modes), thus connect the signaling to the 3.3V rail.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
---
 arch/arm/boot/dts/at91-sama7g5ek.dts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/at91-sama7g5ek.dts b/arch/arm/boot/dts/at91-sama7g5ek.dts
index 3b25c67795dd..aa5cc0e98bba 100644
--- a/arch/arm/boot/dts/at91-sama7g5ek.dts
+++ b/arch/arm/boot/dts/at91-sama7g5ek.dts
@@ -764,8 +764,9 @@ &rtt {
 &sdmmc0 {
 	bus-width = <8>;
 	non-removable;
-	no-1-8-v;
 	sdhci-caps-mask = <0x0 0x00200000>;
+	vmmc-supply = <&vdd_3v3>;
+	vqmmc-supply = <&vldo1>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_sdmmc0_default>;
 	status = "okay";
@@ -775,6 +776,8 @@ &sdmmc1 {
 	bus-width = <4>;
 	no-1-8-v;
 	sdhci-caps-mask = <0x0 0x00200000>;
+	vmmc-supply = <&vdd_3v3>;
+	vqmmc-supply = <&vdd_3v3>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_sdmmc1_default>;
 	status = "okay";
-- 
2.25.1


WARNING: multiple messages have this Message-ID (diff)
From: Eugen Hristev <eugen.hristev@microchip.com>
To: <robh+dt@kernel.org>, <claudiu.beznea@microchip.com>
Cc: <devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	Eugen Hristev <eugen.hristev@microchip.com>
Subject: [PATCH] ARM: dts: at91: sama7g5ek: align power rails for sdmmc0/1
Date: Thu, 24 Nov 2022 17:46:10 +0200	[thread overview]
Message-ID: <20221124154610.246790-1-eugen.hristev@microchip.com> (raw)

On this board SDMMC0 has a 1.8 signaled eMMC device powered at
3.3 V .
Hence, correctly describe the connected rails from the PMIC.

SDMMC1 is connected to a voltage switch that can change from
3.3V to 1.8V by a hardware controlled pin.
However SDMMC1 at the moment works only 3.3V mode (default speed,
no UHS-I modes), thus connect the signaling to the 3.3V rail.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
---
 arch/arm/boot/dts/at91-sama7g5ek.dts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/at91-sama7g5ek.dts b/arch/arm/boot/dts/at91-sama7g5ek.dts
index 3b25c67795dd..aa5cc0e98bba 100644
--- a/arch/arm/boot/dts/at91-sama7g5ek.dts
+++ b/arch/arm/boot/dts/at91-sama7g5ek.dts
@@ -764,8 +764,9 @@ &rtt {
 &sdmmc0 {
 	bus-width = <8>;
 	non-removable;
-	no-1-8-v;
 	sdhci-caps-mask = <0x0 0x00200000>;
+	vmmc-supply = <&vdd_3v3>;
+	vqmmc-supply = <&vldo1>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_sdmmc0_default>;
 	status = "okay";
@@ -775,6 +776,8 @@ &sdmmc1 {
 	bus-width = <4>;
 	no-1-8-v;
 	sdhci-caps-mask = <0x0 0x00200000>;
+	vmmc-supply = <&vdd_3v3>;
+	vqmmc-supply = <&vdd_3v3>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_sdmmc1_default>;
 	status = "okay";
-- 
2.25.1


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             reply	other threads:[~2022-11-24 15:47 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-24 15:46 Eugen Hristev [this message]
2022-11-24 15:46 ` [PATCH] ARM: dts: at91: sama7g5ek: align power rails for sdmmc0/1 Eugen Hristev
2022-11-25 11:35 ` Claudiu.Beznea
2022-11-25 11:35   ` Claudiu.Beznea

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