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ARC: [plat-hsdk]: enable DW SPI controller

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HSDK SoC has DW SPI controller. Enable it in preparation of
enabling on-board SPI peripherals.

Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Eugeniy Paltsev 2019-06-07 17:48:00 +03:00 committed by Vineet Gupta
parent fd5de2721e
commit aab128d006
2 changed files with 17 additions and 0 deletions
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14
arch/arc/boot/dts/hsdk.dts
View File

@ -8,6 +8,7 @@
*/
/dts-v1/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/reset/snps,hsdk-reset.h>
/ {
@ -252,6 +253,19 @@
dma-coherent;
};
spi0: spi@20000 {
compatible = "snps,dw-apb-ssi";
reg = <0x20000 0x100>;
#address-cells = <1>;
#size-cells = <0>;
interrupts = <16>;
num-cs = <2>;
reg-io-width = <4>;
clocks = <&input_clk>;
cs-gpios = <&creg_gpio 0 GPIO_ACTIVE_LOW>,
<&creg_gpio 1 GPIO_ACTIVE_LOW>;
};
creg_gpio: gpio@14b0 {
compatible = "snps,creg-gpio-hsdk";
reg = <0x14b0 0x4>;

3
arch/arc/configs/hsdk_defconfig
View File

@ -46,6 +46,9 @@ CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DW=y
CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set
CONFIG_SPI=y
CONFIG_SPI_DESIGNWARE=y
CONFIG_SPI_DW_MMIO=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_DWAPB=y