On Tue, 2024-09-10 at 11:03 +0800, Delphine CC Chiu wrote:
> From: Ricky CX Wu <ricky.cx.wu.wiwynn@xxxxxxxxx>
>
> Enable spi-gpio setting for spi flash in yosemite4.
Is there actually a flash chip on the same bus? You've only described a
TPM. If there's no flash then this seems misleading.
Andrew
> Add tpm device under spi.
>
> Signed-off-by: Ricky CX Wu <ricky.cx.wu.wiwynn@xxxxxxxxx>
> Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@xxxxxxxxxx>
> ---
> .../aspeed/aspeed-bmc-facebook-yosemite4.dts | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
>
> diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts
> index 98477792aa00..fdf9040d655b 100644
> --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts
> +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts
> @@ -34,6 +34,24 @@ iio-hwmon {
> <&adc0 4>, <&adc0 5>, <&adc0 6>, <&adc0 7>,
> <&adc1 0>, <&adc1 1>;
> };
> +
> + spi {
> + compatible = "spi-gpio";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + sck-gpios = <&gpio0 ASPEED_GPIO(X, 3) GPIO_ACTIVE_HIGH>;
> + mosi-gpios = <&gpio0 ASPEED_GPIO(X, 4) GPIO_ACTIVE_HIGH>;
> + miso-gpios = <&gpio0 ASPEED_GPIO(X, 5) GPIO_ACTIVE_HIGH>;
> + cs-gpios = <&gpio0 ASPEED_GPIO(X, 0) GPIO_ACTIVE_LOW>;
> + num-chipselects = <1>;
> +
> + tpm@0 {
> + reg = <0>;
> + compatible = "infineon,slb9670", "tcg,tpm_tis-spi";
> + spi-max-frequency = <33000000>;
> + };
> + };
> };
>
> &uart1 {
