Hi,
On 11/1/21 9:16 PM, Alper Nebi Yasak wrote:
On 01/11/2021 14:18, Jack Mitchell wrote:
On 01/11/2021 09:07, Alper Nebi Yasak wrote:
I'm trying to make my gru-kevin's eMMC work properly (it times out while tuning for HS400 and stops working when reinitialized via "mmc dev 0").
I'm also experiencing issue with the re-init of emmc on a 3399 platform, did you come to any conclusions on the reason? It works fine to load u-boot proper from SPL but then fails in u-boot proper when attempting to perform any mmc activity.
Not really. But I have a nice hack to keep it in a working state:
diff --git a/cmd/mmc.c b/cmd/mmc.c index 96d81ffdf368..83bd18e34609 100644 --- a/cmd/mmc.c +++ b/cmd/mmc.c @@ -129,10 +129,13 @@ static struct mmc *__init_mmc_device(...) if (!mmc) { printf("no mmc device at slot %x\n", dev); return NULL; }
- if (mmc->cfg->host_caps & MMC_CAP_NONREMOVABLE)
force_init = false;
I don't have rockchip board, but this code is working fine. It seems that needs to implement a reinit callback function to clear the previous configurations in rockchip_sdhci.c.
Best Regards, Jaehoon Chung
if (!mmc_getcd(mmc)) force_init = true;
if (force_init) mmc->has_init = 0;