Re: [PATCH] mmc: Change the frequency to MMC_HS_52 when selecting hs400

On Tue, 23 Apr 2024 11:00:57 +0530, Venkatesh Yadav Abbarapu wrote:

Per JESD84-B51 P47, host need to change frequency to <=52MHz after setting HS_TIMING to 0x1, and host need to set the 8-bit DDR buswidth. Currently setting the frequency to 26MHz and trying to switch 8-bit DDR buswidth resulting timeouts.

mmc dev 1 0 Select HS400 failed -110 switch to partitions #0, OK mmc1(part 0) is current device

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Applied to u-boot/next, thanks!