Re: [PATCH v8 2/4] riscv: dts: thead: Add TH1520 mmc controllers and sdhci clock

Emil Renner Berthing
2023-12-06T10:10:45Z

Drew Fustini wrote:
> Add node for the fixed reference clock used for emmc and sdio nodes.
> Add emmc node for the 1st dwcmshc instance which is typically connected
> to an eMMC device. Add sdio0 node for the 2nd dwcmshc instance which is
> typically connected to microSD slot. Add sdio1 node for the 3rd dwcmshc
> instance which is typically connected to an SDIO WiFi module. The node
> names are based on Table 1-2 C910/C906 memory map in the TH1520 System
> User Manual.
>
> Link: https://git.beagleboard.org/beaglev-ahead/beaglev-ahead/-/tree/main/docs
> Signed-off-by: Drew Fustini <dfustini@baylibre.com>

Thanks! The rest of the patches look good too, but I don't really have
a schematic
to do proper review.

Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>

> ---
> arch/riscv/boot/dts/thead/th1520.dtsi | 34 ++++++++++++++++++++++++++++++++++
> 1 file changed, 34 insertions(+)
>
> diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi
> index ba4d2c673ac8..8b915e206f3a 100644
> --- a/arch/riscv/boot/dts/thead/th1520.dtsi
> +++ b/arch/riscv/boot/dts/thead/th1520.dtsi
> @@ -146,6 +146,13 @@ uart_sclk: uart-sclk-clock {
> #clock-cells = <0>;
> };
>
> + sdhci_clk: sdhci-clock {
> + compatible = "fixed-clock";
> + clock-frequency = <198000000>;
> + clock-output-names = "sdhci_clk";
> + #clock-cells = <0>;
> + };
> +
> soc {
> compatible = "simple-bus";
> interrupt-parent = <&plic>;
> @@ -304,6 +311,33 @@ dmac0: dma-controller@ffefc00000 {
> status = "disabled";
> };
>
> + emmc: mmc@ffe7080000 {
> + compatible = "thead,th1520-dwcmshc";
> + reg = <0xff 0xe7080000 0x0 0x10000>;
> + interrupts = <62 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&sdhci_clk>;
> + clock-names = "core";
> + status = "disabled";
> + };
> +
> + sdio0: mmc@ffe7090000 {
> + compatible = "thead,th1520-dwcmshc";
> + reg = <0xff 0xe7090000 0x0 0x10000>;
> + interrupts = <64 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&sdhci_clk>;
> + clock-names = "core";
> + status = "disabled";
> + };
> +
> + sdio1: mmc@ffe70a0000 {
> + compatible = "thead,th1520-dwcmshc";
> + reg = <0xff 0xe70a0000 0x0 0x10000>;
> + interrupts = <71 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&sdhci_clk>;
> + clock-names = "core";
> + status = "disabled";
> + };
> +
> timer0: timer@ffefc32000 {
> compatible = "snps,dw-apb-timer";
> reg = <0xff 0xefc32000 0x0 0x14>;
>
> --
> 2.34.1
>
>
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