Re: [PATCH v1 3/3] riscv: dts: starfive: Add mmc node

Krzysztof Kozlowski
2022-12-07T15:15:02Z

On 07/12/2022 14:17, William Qiu wrote:
> This adds the mmc node for the StarFive JH7110 SoC.
> Set sdioo node to emmc and set sdio1 node to sd.
>
> Signed-off-by: William Qiu <william.qiu@starfivetech.com>
> ---
> .../jh7110-starfive-visionfive-v2.dts | 25 ++++++++++++
> arch/riscv/boot/dts/starfive/jh7110.dtsi | 38 +++++++++++++++++++
> 2 files changed, 63 insertions(+)
>
> diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-v2.dts b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-v2.dts
> index c8946cf3a268..6ef8e303c2e6 100644
> --- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-v2.dts
> +++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-v2.dts
> @@ -47,6 +47,31 @@ &clk_rtc {
> clock-frequency = <32768>;
> };
>
> +&sdio0 {
> + max-frequency = <100000000>;
> + card-detect-delay = <300>;
> + bus-width = <8>;
> + cap-mmc-highspeed;
> + mmc-ddr-1_8v;
> + mmc-hs200-1_8v;
> + non-removable;
> + cap-mmc-hw-reset;
> + post-power-on-delay-ms = <200>;
> + status = "okay";
> +};
> +
> +&sdio1 {
> + max-frequency = <100000000>;
> + card-detect-delay = <300>;
> + bus-width = <4>;
> + no-sdio;
> + no-mmc;
> + broken-cd;
> + cap-sd-highspeed;
> + post-power-on-delay-ms = <200>;
> + status = "okay";
> +};
> +
> &gmac0_rmii_refin {
> clock-frequency = <50000000>;
> };
> diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi
> index c22e8f1d2640..e90b085d7e41 100644
> --- a/arch/riscv/boot/dts/starfive/jh7110.dtsi
> +++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi
> @@ -331,6 +331,11 @@ aoncrg: clock-controller@17000000 {
> #reset-cells = <1>;
> };
>
> + sys_syscon: sys_syscon@13030000 {

No underscores in node names, generic node names (syscon or
system-controller)

> + compatible = "syscon";

This is not allowed alone.

> + reg = <0x0 0x13030000 0x0 0x1000>;
> + };
> +
> gpio: gpio@13040000 {
> compatible = "starfive,jh7110-sys-pinctrl";
> reg = <0x0 0x13040000 0x0 0x10000>;
> @@ -433,5 +438,38 @@ uart5: serial@12020000 {
> reg-shift = <2>;
> status = "disabled";
> };
> +
> + /* unremovable emmc as mmcblk0 */
> + sdio0: mmc@16010000 {
> + compatible = "starfive,jh7110-sdio";
> + reg = <0x0 0x16010000 0x0 0x10000>;
> + clocks = <&syscrg JH7110_SYSCLK_SDIO0_AHB>,
> + <&syscrg JH7110_SYSCLK_SDIO0_SDCARD>;
> + clock-names = "biu","ciu";
> + resets = <&syscrg JH7110_SYSRST_SDIO0_AHB>;
> + reset-names = "reset";
> + interrupts = <74>;
> + fifo-depth = <32>;
> + fifo-watermark-aligned;
> + data-addr = <0>;
> + starfive,sys-syscon = <&sys_syscon 0x14 0x1a 0x7c000000>;

This does not match your bindings at all. "&sys_syscon" is a phandle,
not a number of tuning retries, as you expect in your bindings.

Best regards,
Krzysztof