commit fe4795e66b515c2523df09a8800ecac9a3f63557
author Gabe Black <gabeblack@google.com> Thu Nov 14 15:08:47 2013 -0800
committer chrome-internal-fetch <chrome-internal-fetch@google.com> Fri Nov 15 06:44:27 2013 +0000
tree 075c8039d02e2f9b590b980616d57aa17640ad63
parent 31507f6a575220737ee5683b312cd162600f89cc

nyan: Increase the CPU voltage to 1.2V.

This voltage is recommended for the CPU when running at 1.8GHz.

BUG=None
TEST=Built and partially booted on the new form factor nyan.
BRANCH=None

Change-Id: I4ae4b16179d1be241119d85986823ad52af4fb70
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://chromium-review.googlesource.com/176906
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: Gabe Black <gabeblack@chromium.org>
Commit-Queue: Gabe Black <gabeblack@chromium.org>

src/mainboard/google/nyan/pmic.c

diff --git a/src/mainboard/google/nyan/pmic.c b/src/mainboard/google/nyan/pmic.c
index a625f55..6c6a8fc 100644
--- a/src/mainboard/google/nyan/pmic.c
+++ b/src/mainboard/google/nyan/pmic.c
@@ -43,11 +43,11 @@
 	 * Don't write LDCONTROL - it's already 0xFF, i.e. all LDOs enabled.
 	 */
 
-	/* First set VDD_CPU to 1.0V, then enable the VDD_CPU regulator. */
+	/* First set VDD_CPU to 1.2V, then enable the VDD_CPU regulator. */
 	if (CONFIG_NYAN_IN_A_PIXEL)
-		pmic_write_reg(bus, 0x00, 0x28);
-	else
 		pmic_write_reg(bus, 0x00, 0x3c);
+	else
+		pmic_write_reg(bus, 0x00, 0x50);
 
 	/* First set VDD_GPU to 1.0V, then enable the VDD_GPU regulator. */
 	pmic_write_reg(bus, 0x06, 0x28);