From: E Shattow <e@freeshell.de>
To: Conor Dooley <conor@kernel.org>,
Emil Renner Berthing <kernel@esmil.dk>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Alexandre Ghiti <alex@ghiti.fr>
Cc: linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
devicetree@vger.kernel.org, E Shattow <e@freeshell.de>
Subject: [PATCH v2 5/5] riscv: dts: starfive: add Milk-V Mars CM Lite system-on-module
Date: Sun, 31 Aug 2025 15:59:30 -0700 [thread overview]
Message-ID: <20250831225959.531393-6-e@freeshell.de> (raw)
In-Reply-To: <20250831225959.531393-1-e@freeshell.de>
Milk-V Mars CM Lite is a System-on-Module based on the Milk-V Mars CM
without the onboard eMMC storage component populated and configured
instead for SD3.0 Card Slot on that interface via 100-pin connector.
Link to Milk-V Mars CM Lite schematics: https://github.com/milkv-mars/mars-files/tree/main/Mars-CM_Hardware_Schematices
Link to StarFive JH7110 Technical Reference Manual: https://doc-en.rvspace.org/JH7110/TRM/index.html
Link to Raspberry Pi CM4IO datasheet: https://datasheets.raspberrypi.com/cm4io/cm4io-datasheet.pdf
Add the devicetree file to make use of StarFive JH7110 common supported
features PMIC, EEPROM, UART, I2C, GPIO, PCIe, QSPI Flash, PWM, and
Ethernet. Also configure the eMMC interface mmc0 for SD Card use and
configure the common SD Card interface mmc1 for onboard SDIO BT+WiFi.
Signed-off-by: E Shattow <e@freeshell.de>
---
arch/riscv/boot/dts/starfive/Makefile | 1 +
.../dts/starfive/jh7110-milkv-marscm-lite.dts | 26 +++++++++++++++++++
2 files changed, 27 insertions(+)
create mode 100644 arch/riscv/boot/dts/starfive/jh7110-milkv-marscm-lite.dts
diff --git a/arch/riscv/boot/dts/starfive/Makefile b/arch/riscv/boot/dts/starfive/Makefile
index 79742617ddab..62b659f89ba7 100644
--- a/arch/riscv/boot/dts/starfive/Makefile
+++ b/arch/riscv/boot/dts/starfive/Makefile
@@ -11,6 +11,7 @@ dtb-$(CONFIG_ARCH_STARFIVE) += jh7100-starfive-visionfive-v1.dtb
dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-deepcomputing-fml13v01.dtb
dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-milkv-mars.dtb
dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-milkv-marscm-emmc.dtb
+dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-milkv-marscm-lite.dtb
dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-pine64-star64.dtb
dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-starfive-visionfive-2-v1.2a.dtb
dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-starfive-visionfive-2-v1.3b.dtb
diff --git a/arch/riscv/boot/dts/starfive/jh7110-milkv-marscm-lite.dts b/arch/riscv/boot/dts/starfive/jh7110-milkv-marscm-lite.dts
new file mode 100644
index 000000000000..9052e8d515e1
--- /dev/null
+++ b/arch/riscv/boot/dts/starfive/jh7110-milkv-marscm-lite.dts
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2025 E Shattow <e@freeshell.de>
+ */
+
+/dts-v1/;
+#include "jh7110-milkv-marscm.dtsi"
+
+/ {
+ model = "Milk-V Mars CM Lite";
+ compatible = "milkv,marscm-lite", "starfive,jh7110";
+};
+
+&mmc0 {
+ bus-width = <4>;
+ cd-gpios = <&sysgpio 41 GPIO_ACTIVE_LOW>;
+};
+
+&mmc0_pins {
+ pwren-pins {
+ pinmux = <GPIOMUX(22, GPOUT_HIGH,
+ GPOEN_ENABLE,
+ GPI_NONE)>;
+ };
+};
+
--
2.50.0
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prev parent reply other threads:[~2025-08-31 23:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-31 22:59 [PATCH v2 0/5] riscv: dts: starfive: Add Milk-V Mars CM (Lite) SoM E Shattow
2025-08-31 22:59 ` [PATCH v2 1/5] riscv: dts: starfive: add common board dtsi for Milk-V Mars CM variants E Shattow
2025-08-31 22:59 ` [PATCH v2 2/5] dt-bindings: riscv: starfive: add milkv,marscm-emmc E Shattow
2025-08-31 22:59 ` [PATCH v2 3/5] riscv: dts: starfive: add Milk-V Mars CM system-on-module E Shattow
2025-08-31 22:59 ` [PATCH v2 4/5] dt-bindings: riscv: starfive: add milkv,marscm-lite E Shattow
2025-08-31 22:59 ` E Shattow [this message]
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