[PATCH] powerpc/p3041: change espi input-clock from 40MHz to 35MHz

Subsystems: linux for powerpc (32-bit and 64-bit), the rest

STALE5160d

2 messages, 2 authors, 2012-07-17 · open the first message on its own page

[PATCH] powerpc/p3041: change espi input-clock from 40MHz to 35MHz

From: Shaohui Xie <hidden>
Date: 2012-07-17 07:40:27

Default CCB on P3041 is 750MHz, but espi cannot work at 40MHz with this CCB,
so we need to slow down the clock rate of espi to 35MHz to make it work stable
with the CCB.

Signed-off-by: Shaohui Xie <redacted>
---
 arch/powerpc/boot/dts/p3041ds.dts |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/boot/dts/p3041ds.dts b/arch/powerpc/boot/dts/p3041ds.dts
index 22a215e..6cdcadc 100644
--- a/arch/powerpc/boot/dts/p3041ds.dts
+++ b/arch/powerpc/boot/dts/p3041ds.dts
@@ -58,7 +58,7 @@
 				#size-cells = <1>;
 				compatible = "spansion,s25sl12801";
 				reg = <0>;
-				spi-max-frequency = <40000000>; /* input clock */
+				spi-max-frequency = <35000000>; /* input clock */
 				partition@u-boot {
 					label = "u-boot";
 					reg = <0x00000000 0x00100000>;
-- 
1.6.4

Re: [PATCH] powerpc/p3041: change espi input-clock from 40MHz to 35MHz

From: Kumar Gala <hidden>
Date: 2012-07-17 13:39:46

On Jul 17, 2012, at 2:18 AM, Shaohui Xie wrote:
Default CCB on P3041 is 750MHz, but espi cannot work at 40MHz with =
this CCB,
so we need to slow down the clock rate of espi to 35MHz to make it =
work stable
with the CCB.
=20
Signed-off-by: Shaohui Xie <redacted>
---
arch/powerpc/boot/dts/p3041ds.dts |    2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
applied to next

- k=
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help