linux-kernel - [PATCH 2/6] ARM: dts: aspeed: bletchley: switch spi2 driver to aspeed-smc

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Date:   Mon,  9 May 2022 23:11:14 +0800
From:   Potin Lai <potin.lai.pt@...il.com>
To:     Rob Herring <robh+dt@...nel.org>, Joel Stanley <joel@....id.au>,
        Andrew Jeffery <andrew@...id.au>
Cc:     Patrick Williams <patrick@...cx.xyz>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Potin Lai <potin.lai.pt@...il.com>
Subject: [PATCH 2/6] ARM: dts: aspeed: bletchley: switch spi2 driver to aspeed-smc

Due to DVT schematic has stable spi signal, switch back to aspeed-smc
driver for improving performance.

Signed-off-by: Potin Lai <potin.lai.pt@...il.com>
---
 .../dts/aspeed-bmc-facebook-bletchley.dts     | 33 ++++++++-----------
 1 file changed, 13 insertions(+), 20 deletions(-)

diff --git a/arch/arm/boot/dts/aspeed-bmc-facebook-bletchley.dts b/arch/arm/boot/dts/aspeed-bmc-facebook-bletchley.dts
index b7439df65423..eefb624d4850 100644
--- a/arch/arm/boot/dts/aspeed-bmc-facebook-bletchley.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-facebook-bletchley.dts
@@ -51,26 +51,6 @@
 		};
 	};
 
-	spi2_gpio: spi2-gpio {
-		compatible = "spi-gpio";
-		#address-cells = <1>;
-		#size-cells = <0>;
-
-		gpio-sck = <&gpio0 ASPEED_GPIO(X, 3) GPIO_ACTIVE_HIGH>;
-		gpio-mosi = <&gpio0 ASPEED_GPIO(X, 4) GPIO_ACTIVE_HIGH>;
-		gpio-miso = <&gpio0 ASPEED_GPIO(X, 5) GPIO_ACTIVE_HIGH>;
-		num-chipselects = <1>;
-		cs-gpios = <&gpio0 ASPEED_GPIO(X, 0) GPIO_ACTIVE_LOW>;
-
-		flash@0 {
-			reg = <0>;
-			compatible = "jedec,spi-nor";
-			m25p,fast-read;
-			label = "pnor";
-			spi-max-frequency = <100000000>;
-		};
-	};
-
 	switchphy: ethernet-phy@0 {
 		// Fixed link
 	};
@@ -242,6 +222,19 @@
 	};
 };
 
+&spi2 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spi2_default>;
+
+	flash@0 {
+		status = "okay";
+		m25p,fast-read;
+		label = "pnor";
+		spi-max-frequency = <50000000>;
+	};
+};
+
 &i2c0 {
 	status = "okay";
 	ina230@45 {
-- 
2.17.1