Hi Jonas,
On Wed, 3 May 2023 at 08:17, Jonas Karlman jonas@kwiboo.se wrote:
Hi Simon,
On 2023-05-03 14:41, Simon Glass wrote:
This makes MMC extremely slow on bob. Even reading the environment takes ages.
If there is a bug on a particular controller, it should be worked around using the compatible string, e.g. with ->flags in struct sdhci_data - althought I don't see any docs for the flags.
This revert will break booting from emmc on rock5b-rk3588.
An alternative to this revert could be to enable CONFIG_MMC_SDHCI_SDMA for more rk3399 defconfigs. Using DMA should improve/restore performance.
I have a followup patch in the works that changes this slightly, can include a change to only apply this workaround for rk35xx.
OK, but please use the compatible string for any workarounds.
Regards, Simon