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From:   Jon Lin <jon.lin@rock-chips.com>
To:     linux-spi@vger.kernel.org
Cc:     jon.lin@rock-chips.com, broonie@kernel.org, robh+dt@kernel.org,
        heiko@sntech.de, jbx6244@gmail.com, hjc@rock-chips.com,
        yifeng.zhao@rock-chips.com, sugar.zhang@rock-chips.com,
        linux-rockchip@lists.infradead.org, linux-mtd@lists.infradead.org,
        p.yadav@ti.com, macroalpha82@gmail.com, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        mturquette@baylibre.com, sboyd@kernel.org,
        linux-clk@vger.kernel.org, Chris Morgan <macromorgan@hotmail.com>
Subject: [RFC PATCH v11 10/10] arm64: dts: rockchip: Enable SFC for Odroid Go Advance
Date:   Wed,  7 Jul 2021 17:09:25 +0800
Message-Id: <20210707090925.6203-1-jon.lin@rock-chips.com>
In-Reply-To: <20210707090843.5959-1-jon.lin@rock-chips.com>
References: <20210707090843.5959-1-jon.lin@rock-chips.com>
Precedence: bulk

From: Chris Morgan <macromorgan@hotmail.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@hotmail.com>
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
---

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 49c97f76df77..4410a6ef5ada 100644
--- a/arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts
@@ -484,6 +484,22 @@
 	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