From cd7ab133db383204c9712e1c6fe9dcaa14f90955 Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Wed, 26 Sep 2018 12:53:57 +0800 Subject: [PATCH] arm64: dts: rockchip: Enable SPI NOR flash on Rock64 The Pine64 Rock64 board comes with a GigaDevice GD25Q128CSIG or GD25Q127CSIG chip, which is a 128 Mbit SPI NOR flash chip that supports the JEDEC read-ID command. This patch enables the SPI controller and adds a device node for the flash chip using the generic "jedec,spi-nor" comaptible. Signed-off-by: Chen-Yu Tsai Signed-off-by: Heiko Stuebner --- arch/arm64/boot/dts/rockchip/rk3328-rock64.dts | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts b/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts index 9ee4f57557f3..2170cf63845e 100644 --- a/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts +++ b/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts @@ -290,6 +290,18 @@ }; }; +&spi0 { + status = "okay"; + + spiflash@0 { + compatible = "jedec,spi-nor"; + reg = <0>; + + /* maximum speed for Rockchip SPI */ + spi-max-frequency = <50000000>; + }; +}; + &tsadc { rockchip,hw-tshut-mode = <0>; rockchip,hw-tshut-polarity = <0>;