After settings the speed of the sd with the switch command, a check is
done to make sure that the new speed has been set. The current check has a
masking error: speed are encoded on 4 bits only.
Fix it by masking the upper bits.
This fixes a problem seen with QEmu emulating a vexpress-a15.
Reported-by: Jonathan Gray <j...@jsg.id.au>
Signed-off-by: Jean-Jacques Hiblot <jjhib...@ti.com>
---
drivers/mmc/mmc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 255310a..31614dd 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -1333,7 +1333,7 @@ static int sd_set_card_speed(struct mmc *mmc, enum
bus_mode mode)
if (err)
return err;
- if ((__be32_to_cpu(switch_status[4]) >> 24) != speed)
+ if (((__be32_to_cpu(switch_status[4]) >> 24) & 0xF) != speed)
return -ENOTSUPP;
return 0;
--
1.9.1
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
