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ARC: [plat-hsdk] Enable DW APB GPIO support

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Enable GPIO support on HSDK. HSDK SoC includes Synopsys
DesignWare DW_apb_gpio IP with 24 GPIOs mapped onto port A.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Eugeniy Paltsev 2018-10-23 15:09:19 +03:00 committed by Vineet Gupta
parent afba5d157f
commit 4592f11e47
2 changed files with 18 additions and 0 deletions
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15
arch/arc/boot/dts/hsdk.dts
View File

@ -222,6 +222,21 @@
bus-width = <4>;
dma-coherent;
};
gpio: gpio@3000 {
compatible = "snps,dw-apb-gpio";
reg = <0x3000 0x20>;
#address-cells = <1>;
#size-cells = <0>;
gpio_port_a: gpio-controller@0 {
compatible = "snps,dw-apb-gpio-port";
gpio-controller;
#gpio-cells = <2>;
snps,nr-gpios = <24>;
reg = <0>;
};
};
};
memory@80000000 {

3
arch/arc/configs/hsdk_defconfig
View File

@ -45,6 +45,9 @@ CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DW=y
CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set
CONFIG_GPIOLIB=y
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_DWAPB=y
# CONFIG_HWMON is not set
CONFIG_DRM=y
# CONFIG_DRM_FBDEV_EMULATION is not set