[PATCH v2 3/6] riscv: dts: spacemit: k1-musepi-pro: enable QSPI and add SPI NOR
Yixun Lan
dlan at kernel.org
Tue May 12 04:44:34 PDT 2026
Hi Andre,
On 13:11 Mon 11 May , Andre Heider wrote:
> Add the QSPI controller node and describe the attached SPI NOR flash
> (Winbond W25Q64FWSSAQ).
>
> Add a corresponding vendor flash partition layout.
>
> Signed-off-by: Andre Heider <a.heider at gmail.com>
> ---
> .../riscv/boot/dts/spacemit/k1-musepi-pro.dts | 43 ++++++++++++++++++-
> 1 file changed, 42 insertions(+), 1 deletion(-)
>
> diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
> index 79415d760f162..7ebace0e46edb 100644
> --- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
> +++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
> @@ -166,7 +166,7 @@ buck3_1v8: buck3 {
> regulator-always-on;
> };
>
> - buck4 {
> + buck4_3v3: buck4 {
I'd prefer you make it right once in the first patch [1/6] which introduced this
regulator.. please fix all similar issues in this series..
> regulator-min-microvolt = <500000>;
> regulator-max-microvolt = <3300000>;
> regulator-ramp-delay = <5000>;
> @@ -249,6 +249,47 @@ dldo7 {
> };
> };
>
> +&qspi {
> + pinctrl-names = "default";
> + pinctrl-0 = <&qspi_cfg>;
> + status = "okay";
> +
> + flash at 0 {
> + compatible = "jedec,spi-nor";
> + reg = <0>;
> + spi-max-frequency = <26500000>;
> + spi-rx-bus-width = <4>;
> + spi-tx-bus-width = <4>;
> + vcc-supply = <&buck4_3v3>; /* QSPI_VCC1833 */
> + m25p,fast-read;
> +
> + partitions {
> + compatible = "fixed-partitions";
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + bootinfo at 0 {
> + reg = <0x0 0x10000>;
> + };
> + private at 10000 {
> + reg = <0x10000 0x10000>;
> + };
> + fsbl at 20000 {
> + reg = <0x20000 0x40000>;
> + };
> + env at 60000 {
> + reg = <0x60000 0x10000>;
> + };
> + opensbi at 70000 {
> + reg = <0x70000 0x30000>;
> + };
> + uboot at a00000 {
> + reg = <0xa0000 0x760000>;
> + };
> + };
> + };
> +};
> +
> &uart0 {
> pinctrl-0 = <&uart0_2_cfg>;
> pinctrl-names = "default";
> --
> 2.53.0
>
--
Yixun Lan (dlan)
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