mmc: bcm2835_sdhci: Parse generic MMC device tree properties

The bcm2835 SDHCI driver sets up the MMC host configuration via
sdhci_setup_cfg(), but does not parse generic MMC device tree
properties.

As a result, properties such as bus-width are ignored. On Raspberry Pi
Compute Module 4, the eMMC node describes an 8-bit bus, but U-Boot
initialized the device as 4-bit.

Call mmc_of_parse() before sdhci_setup_cfg() so that generic MMC
properties are folded into the host configuration before the MMC core
selects the bus width.

Before this change, mmc info reported:

    Bus Speed: 52000000
    Bus Width: 4-bit

After this change, mmc info reports:

    Bus Speed: 52000000
    Bus Width: 8-bit

Tested on Raspberry Pi Compute Module 4 with onboard eMMC.

Signed-off-by: Liel Harel <[email protected]>
Reviewed-by: Peter Robinson <[email protected]>
Tested-by: Peter Robinson <[email protected]> # on the CM4 as well

0 files changed, 0 insertions, 0 deletions