[PATCH v6 3/3] arm64: dts: rockchip: Add Radxa CM5 IO Board

[FUKAUMI Naoki]

Hi Jimmy,

On 11/6/25 03:27, Jimmy Hon wrote:
> On Tue, Nov 4, 2025 at 11:14 PM FUKAUMI Naoki <naoki at radxa.com> wrote:
>>
>> The Radxa CM5 IO Board is an application board for the Radxa CM5.
>>
>> Specification:
> 
>> - 1x microSD card slot
> 
> [ snip ]
> 
>> +
>> +&sdmmc {
>> +       bus-width = <4>;
>> +       cap-mmc-highspeed;
>> +       cap-sd-highspeed;
>> +       cd-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_LOW>;
>> +       disable-wp;
>> +       no-sdio;
>> +       pinctrl-names = "default";
>> +       pinctrl-0 = <&sdmmc_bus4 &sdmmc_clk &sdmmc_cmd>;
>> +       sd-uhs-sdr104;
>> +       vmmc-supply = <&vcc_3v3_s3>;
>> +       vqmmc-supply = <&vccio_sd_s0>;
>> +       status = "okay";
>> +};
> 
> When used as a TF slot, shouldn't there be a "no-mmc" also?

We have "eMMC to uSD."
  https://radxa.com/products/accessories/emmc-to-usd

[  202.176757] mmc_host mmc1: Bus speed (slot 0) = 49500000Hz (slot req 
52000000Hz, actual 49500000HZ div = 0)
[  202.178477] mmc1: new high speed MMC card at address 0001
[  202.179534] mmcblk1: mmc1:0001 SLD64G 57.6 GiB
[  202.207336] mmcblk1boot0: mmc1:0001 SLD64G 4.00 MiB
[  202.210374] mmcblk1boot1: mmc1:0001 SLD64G 4.00 MiB
[  202.212967] mmcblk1rpmb: mmc1:0001 SLD64G 4.00 MiB, chardev (511:1)

(I'm not sure why it says "Not work with the SD slot on the board." I 
will check.)

> That's how the Rock 5A, 5B, and 5C were defined.

I have submitted a patch without "no-mmc" before. I intend to send one 
again when I have the chance.

Best regards,

--
FUKAUMI Naoki
Radxa Computer (Shenzhen) Co., Ltd.

> Jimmy
>