diff options
| author | Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> | 2018-06-08 18:52:14 +0300 |
|---|---|---|
| committer | Alexey Brodkin <abrodkin@synopsys.com> | 2018-07-31 07:49:47 +0300 |
| commit | cdfe6913c113ced9a0aa0a7dc48d037046c980e3 (patch) | |
| tree | 6d4eb30a3b456cafa3bd60a2d249ae0856513768 /arch | |
| parent | 7620ec4df65d6d2148e7476fbaff6619556acb13 (diff) | |
AXS10x: add spi flash support
AXS10x boards have n25q512 spi flash IC, so add corresponding
nodes to device tree and enaple corresponding options in
defconfig.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arc/dts/axs10x_mb.dtsi | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/arc/dts/axs10x_mb.dtsi b/arch/arc/dts/axs10x_mb.dtsi index 3855a34dc2..dfc03810ca 100644 --- a/arch/arc/dts/axs10x_mb.dtsi +++ b/arch/arc/dts/axs10x_mb.dtsi @@ -4,6 +4,10 @@ */ / { + aliases { + spi0 = &spi0; + }; + axs10x_mb@e0000000 { compatible = "simple-bus"; #address-cells = <1>; @@ -56,5 +60,35 @@ reg-shift = <2>; reg-io-width = <4>; }; + + spi0: spi@0 { + compatible = "snps,dw-apb-ssi"; + reg = <0x0 0x100>; + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <4000000>; + clocks = <&apbclk>; + clock-names = "spi_clk"; + cs-gpio = <&cs_gpio 0>; + spi_flash@0 { + compatible = "spi-flash"; + reg = <0>; + spi-max-frequency = <4000000>; + }; + }; + + cs_gpio: gpio@11218 { + compatible = "snps,creg-gpio"; + reg = <0x11218 0x4>; + gpio-controller; + #gpio-cells = <1>; + gpio-bank-name = "axs-spi-cs"; + gpio-count = <1>; + gpio-first-shift = <0>; + gpio-bit-per-line = <2>; + gpio-activate-val = <1>; + gpio-deactivate-val = <3>; + gpio-default-val = <1>; + }; }; }; |