The current definitions have a reg-name for "memory", but no corresponding reg space defined. These values were taken from the NPCM7xx documentation and tested on real hardware. Without this definition, the FIU driver does not take advantage of direct read support. Signed-off-by: William A. Kennington III <wak@xxxxxxxxxx> --- arch/arm/boot/dts/nuvoton-common-npcm7xx.dtsi | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/boot/dts/nuvoton-common-npcm7xx.dtsi b/arch/arm/boot/dts/nuvoton-common-npcm7xx.dtsi index aca0e0e390d8..c164ec9fc96f 100644 --- a/arch/arm/boot/dts/nuvoton-common-npcm7xx.dtsi +++ b/arch/arm/boot/dts/nuvoton-common-npcm7xx.dtsi @@ -181,7 +181,7 @@ fiu0: spi@fb000000 { compatible = "nuvoton,npcm750-fiu"; #address-cells = <1>; #size-cells = <0>; - reg = <0xfb000000 0x1000>; + reg = <0xfb000000 0x1000>, <0x80000000 0x10000000>; reg-names = "control", "memory"; clocks = <&clk NPCM7XX_CLK_SPI0>; clock-names = "clk_spi0"; @@ -192,7 +192,7 @@ fiu3: spi@c0000000 { compatible = "nuvoton,npcm750-fiu"; #address-cells = <1>; #size-cells = <0>; - reg = <0xc0000000 0x1000>; + reg = <0xc0000000 0x1000>, <0xa0000000 0x20000000>; reg-names = "control", "memory"; clocks = <&clk NPCM7XX_CLK_SPI3>; clock-names = "clk_spi3"; @@ -265,7 +265,7 @@ fiux: spi@fb001000 { compatible = "nuvoton,npcm750-fiu"; #address-cells = <1>; #size-cells = <0>; - reg = <0xfb001000 0x1000>; + reg = <0xfb001000 0x1000>, <0xf8000000 0x2000000>; reg-names = "control", "memory"; clocks = <&clk NPCM7XX_CLK_SPIX>; clock-names = "clk_spix"; -- 2.34.0.rc1.387.gb447b232ab-goog