[PATCH 3/4] riscv: dts: spacemit: enable eMMC on Milk-V Jupiter

From: Aurelien Jarno <aurelien@aurel32.net>
To: linux-kernel@vger.kernel.org, Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>, Yixun Lan <dlan@kernel.org>
Cc: Aurelien Jarno <aurelien@aurel32.net>,
	devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND
	FLATTENED DEVICE TREE BINDINGS),
	linux-riscv@lists.infradead.org (open list:RISC-V ARCHITECTURE),
	spacemit@lists.linux.dev (open list:RISC-V SPACEMIT SoC Support)
Subject: [PATCH 3/4] riscv: dts: spacemit: enable eMMC on Milk-V Jupiter
Date: Thu, 14 May 2026 17:56:23 +0200	[thread overview]
Message-ID: <20260514160356.1642075-4-aurelien@aurel32.net> (raw)
In-Reply-To: <20260514160356.1642075-1-aurelien@aurel32.net>

The Milk-V Jupiter board has a connector for an eMMC module. Add an
entry for it in the device tree and alias it mmc0. As it is not
populated by default, do no mark it as non-removable.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
---
 arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts b/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
index 450d28e438293..b9b8ddc8e7fb0 100644
--- a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
@@ -17,6 +17,7 @@ aliases {
 		ethernet1 = &eth1;
 		i2c2 = &i2c2;
 		i2c8 = &i2c8;
+		mmc0 = &emmc;
 		serial0 = &uart0;
 	};
 
@@ -138,6 +139,15 @@ &cpu_7 {
 	cpu-supply = <&buck1_3v45>;
 };
 
+&emmc {
+	bus-width = <8>;
+	mmc-hs400-1_8v;
+	mmc-hs400-enhanced-strobe;
+	no-sd;
+	no-sdio;
+	status = "okay";
+};
+
 &eth0 {
 	phy-handle = <&rgmii0>;
 	phy-mode = "rgmii-id";
-- 
2.53.0

