[PATCH 05/19] ARM: shmobile: silk: add QSPI DT support
From: Simon Horman <hidden>
Date: 2015-09-18 00:47:07
Also in:
linux-arm-kernel
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Sergei Shtylyov <redacted> Define the SILK board dependent part of the QSPI device node. Add device nodes for Spansion S25FL512S SPI flash and MTD partitions on it. Based on the original patch by Vladimir Barinov [off-list ref]. Signed-off-by: Sergei Shtylyov <redacted> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <redacted> --- arch/arm/boot/dts/r8a7794-silk.dts | 40 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+)
diff --git a/arch/arm/boot/dts/r8a7794-silk.dts b/arch/arm/boot/dts/r8a7794-silk.dts
index d4dd5a30ccdf..f49bc00738a3 100644
--- a/arch/arm/boot/dts/r8a7794-silk.dts
+++ b/arch/arm/boot/dts/r8a7794-silk.dts@@ -65,6 +65,11 @@ renesas,groups = "mmc_data8", "mmc_ctrl"; renesas,function = "mmc"; }; + + qspi_pins: spi0 { + renesas,groups = "qspi_ctrl", "qspi_data4"; + renesas,function = "qspi"; + }; }; &scif2 {
@@ -100,3 +105,38 @@ non-removable; status = "okay"; }; + +&qspi { + pinctrl-0 = <&qspi_pins>; + pinctrl-names = "default"; + + status = "okay"; + + flash@0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "spansion,s25fl512s", "jedec,spi-nor"; + reg = <0>; + spi-max-frequency = <30000000>; + spi-tx-bus-width = <4>; + spi-rx-bus-width = <4>; + spi-cpol; + spi-cpha; + m25p,fast-read; + + partition@0 { + label = "loader"; + reg = <0x00000000 0x00040000>; + read-only; + }; + partition@40000 { + label = "user"; + reg = <0x00040000 0x00400000>; + read-only; + }; + partition@440000 { + label = "flash"; + reg = <0x00440000 0x03bc0000>; + }; + }; +};
--
2.1.4