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authorAndrey Smirnov <andrew.smirnov@gmail.com>2019-03-25 19:30:17 +0100
committerShawn Guo <shawnguo@kernel.org>2019-03-29 04:25:11 +0100
commit5f0a88a1aabb2b332e2fa01598cc24e708552771 (patch)
treef11ef95995576269454a0b1ba67d80370d079177 /arch/arm/boot/dts/vf610-zii-cfu1.dts
parentARM: dts: vf610: Add ZII SPB4 board (diff)
downloadlinux-5f0a88a1aabb2b332e2fa01598cc24e708552771.tar.xz
linux-5f0a88a1aabb2b332e2fa01598cc24e708552771.zip
ARM: dts: vf610-zii-cfu1: Disable NOR flash/SPI controller
Only a certain number of CFU1's come with NOR flash populated. Disable it by default to avoid trying to probe NOR flash on devices that don't have it. Devices that do have it can rely on the bootloader to enable this node. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Chris Healy <cphealy@gmail.com> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Fabio Estevam <festevam@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm/boot/dts/vf610-zii-cfu1.dts')
-rw-r--r--arch/arm/boot/dts/vf610-zii-cfu1.dts7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/vf610-zii-cfu1.dts b/arch/arm/boot/dts/vf610-zii-cfu1.dts
index 6c78122401a1..afc25b33bd3b 100644
--- a/arch/arm/boot/dts/vf610-zii-cfu1.dts
+++ b/arch/arm/boot/dts/vf610-zii-cfu1.dts
@@ -87,7 +87,12 @@
bus-num = <1>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_dspi1>;
- status = "okay";
+ /*
+ * Some CFU1s come with SPI-NOR chip DNPed, so we leave this
+ * node disabled by default and rely on bootloader to enable
+ * it when appropriate.
+ */
+ status = "disabled";
m25p128@0 {
#address-cells = <1>;