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ARM: shmobile: silk: add QSPI DT support 

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
<vladimir.barinov@cogentembedded.com>.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Sergei Shtylyov 2015-08-11 01:00:35 +03:00 committed by Simon Horman
parent 740b4a9f07
commit 0ebdbc505b
1 changed files with 40 additions and 0 deletions
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40
arch/arm/boot/dts/r8a7794-silk.dts
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@ -65,6 +65,11 @@ mmcif0_pins: mmcif0 {
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 @@ &mmcif0 {
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>;
};
};
};