From b1bdfd4c47b79942db8e0c7ae13d99638eef5f15 Mon Sep 17 00:00:00 2001 From: E Shattow Date: Sat, 23 Aug 2025 03:01:41 -0700 Subject: [PATCH 1/3] dt-bindings: memory-controllers: add StarFive JH7110 SoC DMC Describe JH7110 SoC DDR external memory interface. Signed-off-by: E Shattow Signed-off-by: Linux RISC-V bot --- .../starfive,jh7110-dmc.yaml | 74 +++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 Documentation/devicetree/bindings/memory-controllers/starfive,jh7110-dmc.yaml diff --git a/Documentation/devicetree/bindings/memory-controllers/starfive,jh7110-dmc.yaml b/Documentation/devicetree/bindings/memory-controllers/starfive,jh7110-dmc.yaml new file mode 100644 index 00000000000000..d65313b33a3e8a --- /dev/null +++ b/Documentation/devicetree/bindings/memory-controllers/starfive,jh7110-dmc.yaml @@ -0,0 +1,74 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/memory-controllers/starfive,jh7110-dmc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: StarFive JH7110 DMC + +maintainers: + - E Shattow + +description: + JH7110 DDR external memory interface LPDDR4/DDR4/DDR3/LPDDR3 32-bit at + 2133Mbps (up to 2800Mbps). + +properties: + compatible: + items: + - const: starfive,jh7110-dmc + + reg: + items: + - description: controller registers + - description: phy registers + + clocks: + maxItems: 1 + + clock-names: + items: + - const: pll + + resets: + items: + - description: axi + - description: osc + - description: apb + + reset-names: + items: + - const: axi + - const: osc + - const: apb + +required: + - compatible + - reg + - clocks + - clock-names + - resets + - reset-names + +additionalProperties: false + +examples: + - | + #include + #include + soc { + #address-cells = <2>; + #size-cells = <2>; + + memory-controller@15700000 { + compatible = "starfive,jh7110-dmc"; + reg = <0x0 0x15700000 0x0 0x10000>, + <0x0 0x13000000 0x0 0x10000>; + clocks = <&syscrg JH7110_PLLCLK_PLL1_OUT>; + clock-names = "pll"; + resets = <&syscrg JH7110_SYSRST_DDR_AXI>, + <&syscrg JH7110_SYSRST_DDR_OSC>, + <&syscrg JH7110_SYSRST_DDR_APB>; + reset-names = "axi", "osc", "apb"; + }; + }; From 0f6f52864f3195462e4bd93957060dcbbd9aceeb Mon Sep 17 00:00:00 2001 From: E Shattow Date: Sat, 23 Aug 2025 03:01:42 -0700 Subject: [PATCH 2/3] riscv: dts: starfive: jh7110: add DMC memory controller Add JH7110 SoC DDR external memory controller. Signed-off-by: E Shattow Signed-off-by: Linux RISC-V bot --- arch/riscv/boot/dts/starfive/jh7110.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi index 0ba74ef046792f..f3876660c07f8b 100644 --- a/arch/riscv/boot/dts/starfive/jh7110.dtsi +++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi @@ -931,6 +931,18 @@ <&syscrg JH7110_SYSRST_WDT_CORE>; }; + memory-controller@15700000 { + compatible = "starfive,jh7110-dmc"; + reg = <0x0 0x15700000 0x0 0x10000>, + <0x0 0x13000000 0x0 0x10000>; + clocks = <&syscrg JH7110_PLLCLK_PLL1_OUT>; + clock-names = "pll"; + resets = <&syscrg JH7110_SYSRST_DDR_AXI>, + <&syscrg JH7110_SYSRST_DDR_OSC>, + <&syscrg JH7110_SYSRST_DDR_APB>; + reset-names = "axi", "osc", "apb"; + }; + crypto: crypto@16000000 { compatible = "starfive,jh7110-crypto"; reg = <0x0 0x16000000 0x0 0x4000>; From 06d0f219467e6a42692d6c439360f84341e24d87 Mon Sep 17 00:00:00 2001 From: E Shattow Date: Sat, 23 Aug 2025 03:01:43 -0700 Subject: [PATCH 3/3] riscv: dts: starfive: jh7110: bootph-pre-ram hinting needed by boot loader Add bootph-pre-ram hinting to jh7110.dtsi: - CPU interrupt controller(s) - gmac1_rgmii_rxin fixed-clock (dependency of syscrg) - gmac1_rmii_refin fixed-clock (dependency of syscrg) - oscillator - core local interrupt timer - syscrg clock-controller - pllclk clock-controller (dependency of syscrg) - DDR memory controller Signed-off-by: E Shattow Signed-off-by: Linux RISC-V bot --- arch/riscv/boot/dts/starfive/jh7110.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi index f3876660c07f8b..6e56e9d20bb064 100644 --- a/arch/riscv/boot/dts/starfive/jh7110.dtsi +++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi @@ -35,6 +35,7 @@ cpu0_intc: interrupt-controller { compatible = "riscv,cpu-intc"; + bootph-pre-ram; interrupt-controller; #interrupt-cells = <1>; }; @@ -68,6 +69,7 @@ cpu1_intc: interrupt-controller { compatible = "riscv,cpu-intc"; + bootph-pre-ram; interrupt-controller; #interrupt-cells = <1>; }; @@ -101,6 +103,7 @@ cpu2_intc: interrupt-controller { compatible = "riscv,cpu-intc"; + bootph-pre-ram; interrupt-controller; #interrupt-cells = <1>; }; @@ -134,6 +137,7 @@ cpu3_intc: interrupt-controller { compatible = "riscv,cpu-intc"; + bootph-pre-ram; interrupt-controller; #interrupt-cells = <1>; }; @@ -167,6 +171,7 @@ cpu4_intc: interrupt-controller { compatible = "riscv,cpu-intc"; + bootph-pre-ram; interrupt-controller; #interrupt-cells = <1>; }; @@ -273,12 +278,14 @@ gmac1_rgmii_rxin: gmac1-rgmii-rxin-clock { compatible = "fixed-clock"; + bootph-pre-ram; clock-output-names = "gmac1_rgmii_rxin"; #clock-cells = <0>; }; gmac1_rmii_refin: gmac1-rmii-refin-clock { compatible = "fixed-clock"; + bootph-pre-ram; clock-output-names = "gmac1_rmii_refin"; #clock-cells = <0>; }; @@ -321,6 +328,7 @@ osc: oscillator { compatible = "fixed-clock"; + bootph-pre-ram; clock-output-names = "osc"; #clock-cells = <0>; }; @@ -354,6 +362,7 @@ clint: timer@2000000 { compatible = "starfive,jh7110-clint", "sifive,clint0"; reg = <0x0 0x2000000 0x0 0x10000>; + bootph-pre-ram; interrupts-extended = <&cpu0_intc 3>, <&cpu0_intc 7>, <&cpu1_intc 3>, <&cpu1_intc 7>, <&cpu2_intc 3>, <&cpu2_intc 7>, @@ -880,6 +889,7 @@ syscrg: clock-controller@13020000 { compatible = "starfive,jh7110-syscrg"; reg = <0x0 0x13020000 0x0 0x10000>; + bootph-pre-ram; clocks = <&osc>, <&gmac1_rmii_refin>, <&gmac1_rgmii_rxin>, <&i2stx_bclk_ext>, <&i2stx_lrck_ext>, @@ -904,6 +914,7 @@ pllclk: clock-controller { compatible = "starfive,jh7110-pll"; + bootph-pre-ram; clocks = <&osc>; #clock-cells = <1>; }; @@ -935,6 +946,7 @@ compatible = "starfive,jh7110-dmc"; reg = <0x0 0x15700000 0x0 0x10000>, <0x0 0x13000000 0x0 0x10000>; + bootph-pre-ram; clocks = <&syscrg JH7110_PLLCLK_PLL1_OUT>; clock-names = "pll"; resets = <&syscrg JH7110_SYSRST_DDR_AXI>,