[U-Boot] [PATCH fix for v2014.10] sunxi: axp152: dcdc3 scale is 50mV / step
Hi Tom,
Here is a last minute fix for v2014.10 to fix the axp152 code setting the DRAM voltage way too high on some sunxi boards (2.3V instead of 1.5V).
I hope this can still make v2014.10, if not it is not too bad as most boards use the axp209, not the axp152, and the axp152 boards I've seem to work fine even with the 2.3V DRAM setting.
Regards,
Hans
Currently uboot wrongly uses 25mV / step for dcdc3, this is a copy and paste error introduced when adding the axp152_mvolt_to_target during review of the axp152.c driver. This results in u-boot setting Vddr to 2.3V instead of 1.5V.
This commit fixes this.
Signed-off-by: Hans de Goede hdegoede@redhat.com --- drivers/power/axp152.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/power/axp152.c b/drivers/power/axp152.c index fa4ea05..27c2c4c 100644 --- a/drivers/power/axp152.c +++ b/drivers/power/axp152.c @@ -62,7 +62,7 @@ int axp152_set_dcdc2(int mvolt)
int axp152_set_dcdc3(int mvolt) { - u8 target = axp152_mvolt_to_target(mvolt, 700, 3500, 25); + u8 target = axp152_mvolt_to_target(mvolt, 700, 3500, 50);
return axp152_write(AXP152_DCDC3_VOLTAGE, target); }
On Mon, Oct 13, 2014 at 02:51:40PM +0200, Hans de Goede wrote:
Currently uboot wrongly uses 25mV / step for dcdc3, this is a copy and paste error introduced when adding the axp152_mvolt_to_target during review of the axp152.c driver. This results in u-boot setting Vddr to 2.3V instead of 1.5V.
This commit fixes this.
Signed-off-by: Hans de Goede hdegoede@redhat.com
Applied to u-boot/master, thanks!
participants (2)
-
Hans de Goede -
Tom Rini