On 20/01/2020 05:17, Stephen Brennan wrote:
> When booting Raspberry Pi 4B using a micro SDHC UHS class 1 card, the SD
> card partitions never appear in /dev. According to the device tree
> bindings for Broadcom IPROC SDHCI controller, we should use
> "brcm,bcm2711-emmc2" compatible string on BCM2711. Set this compatible
> string, which allows these cards to be mounted.
>
> Signed-off-by: Stephen Brennan <stephen@xxxxxxxxxx>
> ---
> arch/arm/boot/dts/bcm2711.dtsi | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/boot/dts/bcm2711.dtsi b/arch/arm/boot/dts/bcm2711.dtsi
> index b64865ad5a41..48e3b0162bda 100644
> --- a/arch/arm/boot/dts/bcm2711.dtsi
> +++ b/arch/arm/boot/dts/bcm2711.dtsi
> @@ -853,6 +853,7 @@ &mailbox {
> };
>
> &sdhci {
> + compatible = "brcm,bcm2711-emmc2";
> interrupts = <GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>;
> };
>
>
hm, sdhci is used to drive the wifi chip:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm/boot/dts/bcm2711-rpi-4-b.dts?h=v5.5-rc7#n79
Are you sure you use the upstream devicetree?
Regards,
Matthias
