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authorHaibo Chen <haibo.chen@nxp.com>2021-08-20 11:29:49 +0200
committerShawn Guo <shawnguo@kernel.org>2021-10-04 05:23:19 +0200
commitb2a4f4a302b83976ad0d2930abe0f38e6119a144 (patch)
tree225e58b3078745cc98c7f944c2bf9538b45883a3 /arch/arm/boot/dts/imx6ul-14x14-evk.dtsi
parentARM: imx_v6_v7_defconfig: enable fb (diff)
downloadlinux-b2a4f4a302b83976ad0d2930abe0f38e6119a144.tar.xz
linux-b2a4f4a302b83976ad0d2930abe0f38e6119a144.zip
ARM: dts: imx: change the spi-nor tx
Before commit 0e30f47232ab5 ("mtd: spi-nor: add support for DTR protocol"), for all PP command, it only support 1-1-1 mode, no matter the tx setting in dts. But after the upper commit, the logic change. It will choose the best mode(fastest mode) which flash device and spi-nor host controller both support. Though the spi-nor device on imx6sx-sdb/imx6ul(l/z)-14x14-evk board do not support PP-1-4-4/PP-1-1-4, but if tx is 4 in dts file, it will also impact the read mode selection. For the spi-nor device on the upper mentioned boards, they support read 1-4-4 mode and read 1-1-4 mode according to the device internal sfdp register. But qspi host controller do not support read 1-4-4 mode. so need to set the tx to 1, let the common code finally select read 1-1-4 mode, PP-1-1-1 mode. Signed-off-by: Haibo Chen <haibo.chen@nxp.com> Fixes: 0e30f47232ab ("mtd: spi-nor: add support for DTR protocol") Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm/boot/dts/imx6ul-14x14-evk.dtsi')
-rw-r--r--arch/arm/boot/dts/imx6ul-14x14-evk.dtsi2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/imx6ul-14x14-evk.dtsi b/arch/arm/boot/dts/imx6ul-14x14-evk.dtsi
index 779cc536566d..a3fde3316c73 100644
--- a/arch/arm/boot/dts/imx6ul-14x14-evk.dtsi
+++ b/arch/arm/boot/dts/imx6ul-14x14-evk.dtsi
@@ -292,7 +292,7 @@
compatible = "micron,n25q256a", "jedec,spi-nor";
spi-max-frequency = <29000000>;
spi-rx-bus-width = <4>;
- spi-tx-bus-width = <4>;
+ spi-tx-bus-width = <1>;
reg = <0>;
};
};