[PATCH 12/30] ARM: shmobile: koelsch: Fix QSPI mode of SPI-Flash into mode3
Simon Horman
horms+renesas at verge.net.au
Sun Dec 28 17:46:15 PST 2014
From: Hisashi Nakamura <hisashi.nakamura.ak at renesas.com>
In order to change into mode3, CPOL and CPHA bit of SPCMD register
of QSPI is changed. Mode3 can avoid intermediate voltage.
Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak at renesas.com>
[horms: Updated changelog and re-ordered properties]
Signed-off-by: Simon Horman <horms+renesas at verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas at glider.be>
---
arch/arm/boot/dts/r8a7791-koelsch.dts | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/dts/r8a7791-koelsch.dts b/arch/arm/boot/dts/r8a7791-koelsch.dts
index 1e5f8d2..691e4c6 100644
--- a/arch/arm/boot/dts/r8a7791-koelsch.dts
+++ b/arch/arm/boot/dts/r8a7791-koelsch.dts
@@ -444,6 +444,8 @@
spi-max-frequency = <30000000>;
spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>;
+ spi-cpha;
+ spi-cpol;
m25p,fast-read;
partition at 0 {
--
2.1.3
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