Messages in this thread | ![/](/images/icornerl.gif) | | Date | Sun, 18 Feb 2024 09:22:21 +0800 | Subject | Re: [PATCH RFC] riscv: dts: sophgo: add sdcard support for milkv duo | From | Chen Wang <> |
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Adding Inochia.
hi, Jisheng,
For changes under arch/riscv/boot/dts/sophgo/, please looping Inochia and me.
FYI: https://lore.kernel.org/linux-riscv/IA1PR20MB4953B158F6F575840F3D4267BB7D2@IA1PR20MB4953.namprd20.prod.outlook.com/
Thanks,
Chen
On 2024/2/17 22:48, Jisheng Zhang wrote: > Add sdhci dt node in SoC dtsi and enable it in milkv duo dts. > > Signed-off-by: Jisheng Zhang <jszhang@kernel.org> > --- > Since cv1800b's clk support isn't in, this patch uses fixed dummy clk > and just RFC, I will send formal patch after clk support is ready. > > .../riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts | 8 ++++++++ > arch/riscv/boot/dts/sophgo/cv18xx.dtsi | 17 +++++++++++++++++ > 2 files changed, 25 insertions(+) > > diff --git a/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts b/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts > index 3af9e34b3bc7..94e64ddce8fa 100644 > --- a/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts > +++ b/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts > @@ -33,6 +33,14 @@ &osc { > clock-frequency = <25000000>; > }; > > +&sdhci0 { > + status = "okay"; > + bus-width = <4>; > + no-1-8-v; > + no-mmc; > + no-sdio; > +}; > + > &uart0 { > status = "okay"; > }; > diff --git a/arch/riscv/boot/dts/sophgo/cv18xx.dtsi b/arch/riscv/boot/dts/sophgo/cv18xx.dtsi > index 2d6f4a4b1e58..405f4ba18392 100644 > --- a/arch/riscv/boot/dts/sophgo/cv18xx.dtsi > +++ b/arch/riscv/boot/dts/sophgo/cv18xx.dtsi > @@ -4,6 +4,7 @@ > * Copyright (C) 2023 Inochi Amaoto <inochiama@outlook.com> > */ > > +#include <dt-bindings/gpio/gpio.h> > #include <dt-bindings/interrupt-controller/irq.h> > > / { > @@ -45,6 +46,13 @@ osc: oscillator { > #clock-cells = <0>; > }; > > + sdhci_clk: sdhci-clock { > + compatible = "fixed-clock"; > + clock-frequency = <375000000>; > + clock-output-names = "sdhci_clk"; > + #clock-cells = <0>; > + }; > + > soc { > compatible = "simple-bus"; > interrupt-parent = <&plic>; > @@ -175,6 +183,15 @@ uart4: serial@41c0000 { > status = "disabled"; > }; > > + sdhci0: mmc@4310000 { > + compatible = "sophgo,cv1800b-dwcmshc"; > + reg = <0x4310000 0x1000>; > + interrupts = <36 IRQ_TYPE_LEVEL_HIGH>; > + clocks = <&sdhci_clk>; > + clock-names = "core"; > + status = "disabled"; > + }; > + > plic: interrupt-controller@70000000 { > reg = <0x70000000 0x4000000>; > interrupts-extended = <&cpu0_intc 11>, <&cpu0_intc 9>;
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