For some unknown reason, writes of larger than 1 block always fail with
a checksum error on Qualcomm v5 controllers.
Until this is resolved, work around the issue by setting b_max to 1 for
these controllers.
Reviewed-by: Neil Armstrong <neil.armstr...@linaro.org>
Signed-off-by: Caleb Connolly <caleb.conno...@linaro.org>
---
drivers/mmc/msm_sdhci.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/mmc/msm_sdhci.c b/drivers/mmc/msm_sdhci.c
index 4ce0de6c47d8..fc3e8d101b6e 100644
--- a/drivers/mmc/msm_sdhci.c
+++ b/drivers/mmc/msm_sdhci.c
@@ -195,8 +195,15 @@ static int msm_sdc_probe(struct udevice *dev)
return ret;
host->mmc->priv = &prv->host;
upriv->mmc = host->mmc;
+ /*
+ * FIXME: v5 controllers have a bug in U-Boot that causes all writes
+ * greater than 1 block to fail. Work around this by setting b_max to 1.
+ */
+ if (var_info->mci_removed)
+ plat->cfg.b_max = 1;
+
return sdhci_probe(dev);
}
static int msm_sdc_remove(struct udevice *dev)
--
2.45.0
