linux-kernel - [PATCH v13 6/6] arm64: dts: rockchip: Enable SFC for Odroid Go Advance

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Message-Id: <20210812134639.31586-2-jon.lin@rock-chips.com>
Date:   Thu, 12 Aug 2021 21:46:39 +0800
From:   Jon Lin <jon.lin@...k-chips.com>
To:     linux-spi@...r.kernel.org
Cc:     jon.lin@...k-chips.com, broonie@...nel.org, robh+dt@...nel.org,
        heiko@...ech.de, jbx6244@...il.com, hjc@...k-chips.com,
        yifeng.zhao@...k-chips.com, sugar.zhang@...k-chips.com,
        linux-rockchip@...ts.infradead.org, linux-mtd@...ts.infradead.org,
        p.yadav@...com, macroalpha82@...il.com, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        mturquette@...libre.com, sboyd@...nel.org,
        linux-clk@...r.kernel.org, Chris Morgan <macromorgan@...mail.com>
Subject: [PATCH v13 6/6] arm64: dts: rockchip: Enable SFC for Odroid Go Advance

From: Chris Morgan <macromorgan@...mail.com>

This enables the Rockchip Serial Flash Controller for the Odroid Go
Advance. Note that while the attached SPI NOR flash and the controller
both support quad read mode, only 2 of the required 4 pins are present.
The rx bus width is set to 2 for this reason, and tx bus width is set
to 1 for compatibility reasons.

Signed-off-by: Chris Morgan <macromorgan@...mail.com>
Signed-off-by: Jon Lin <jon.lin@...k-chips.com>
---

Changes in v13: None
Changes in v12: None
Changes in v11:
- The tx is set to 1 for Odroid Go Advance device

Changes in v10: None
Changes in v9: None
Changes in v8: None
Changes in v7: None
Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None
Changes in v1: None

 .../boot/dts/rockchip/rk3326-odroid-go2.dts      | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts b/arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts
index 7fc674a99a6c..35218c2771a2 100644
--- a/arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts
@@ -517,6 +517,22 @@
 	status = "okay";
 };
 
+&sfc {
+	pinctrl-0 = <&sfc_clk &sfc_cs0 &sfc_bus2>;
+	pinctrl-names = "default";
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <108000000>;
+		spi-rx-bus-width = <2>;
+		spi-tx-bus-width = <1>;
+	};
+};
+
 &tsadc {
 	status = "okay";
 };
-- 
2.17.1