linux-kernel - [PATCH RFC v2 3/4] riscv: dts: thead: Enable BeagleV Ahead eMMC controller

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Date:   Fri, 04 Aug 2023 20:14:47 -0700
From:   Drew Fustini <dfustini@...libre.com>
To:     Jisheng Zhang <jszhang@...nel.org>, Guo Ren <guoren@...nel.org>,
        Fu Wei <wefu@...hat.com>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Conor Dooley <conor@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Ulf Hansson <ulf.hansson@...aro.org>
Cc:     linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org,
        Robert Nelson <robertcnelson@...gleboard.org>,
        Jason Kridner <jkridner@...gleboard.org>,
        Drew Fustini <dfustini@...libre.com>
Subject: [PATCH RFC v2 3/4] riscv: dts: thead: Enable BeagleV Ahead eMMC
 controller

Add properties to the emmc node and enable it and set the frequency for
the sdhci clock.

Signed-off-by: Drew Fustini <dfustini@...libre.com>
---
 arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
index c315e5bd3d2d..f93c11754639 100644
--- a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
+++ b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
@@ -52,6 +52,10 @@ &uart_sclk {
 	clock-frequency = <100000000>;
 };
 
+&sdhci_clk {
+	clock-frequency = <198000000>;
+};
+
 &dmac0 {
 	status = "okay";
 };
@@ -59,3 +63,16 @@ &dmac0 {
 &uart0 {
 	status = "okay";
 };
+
+&mmc0 {
+	max-frequency = <198000000>;
+	non-removable;
+	mmc-hs400-1_8v;
+	thead,io-fixed-1v8;
+	no-sdio;
+	no-sd;
+	thead,pull-up;
+	bus-width = <8>;
+	status = "okay";
+
+};

-- 
2.34.1