From: Chris Morgan macromorgan@hotmail.com
The Odroid Go Advance uses a Rockchip Serial Flash Controller with an XT25F128B SPI NOR flash chip. This adds support for both. Note that while both the controller and chip support quad mode, only two lines are connected to the chip. Additionally, a possible errata was found while testing the Linux driver, in that setting the tx mode to 2 would cause erases and writes to sometimes fail. Setting the rx mode to 2 and the tx mode to 1 for this reason, and to match the upcoming changes to Linux.
Signed-off-by: Chris Morgan macromorgan@hotmail.com --- arch/arm/dts/rk3326-odroid-go2-u-boot.dtsi | 18 ++++++++++++++++++ arch/arm/dts/rk3326-odroid-go2.dts | 16 ++++++++++++++++ 2 files changed, 34 insertions(+)
diff --git a/arch/arm/dts/rk3326-odroid-go2-u-boot.dtsi b/arch/arm/dts/rk3326-odroid-go2-u-boot.dtsi index 00767d2abd..d345f6a168 100644 --- a/arch/arm/dts/rk3326-odroid-go2-u-boot.dtsi +++ b/arch/arm/dts/rk3326-odroid-go2-u-boot.dtsi @@ -7,6 +7,16 @@ chosen { u-boot,spl-boot-order = &sdmmc; }; + + aliases { + i2c0 = &i2c0; + i2c1 = &i2c1; + mmc0 = &sdmmc; + serial1 = &uart1; + serial2 = &uart2; + spi0 = &sfc; + spi_flash = "/spi@ff3a0000/flash@0"; + }; };
&cru { @@ -57,6 +67,14 @@ u-boot,spl-fifo-mode; };
+&sfc { + u-boot,dm-pre-reloc; + + flash@0 { + u-boot,dm-pre-reloc; + }; +}; + &uart1 { clock-frequency = <24000000>; u-boot,dm-pre-reloc; diff --git a/arch/arm/dts/rk3326-odroid-go2.dts b/arch/arm/dts/rk3326-odroid-go2.dts index 8cd4688c49..4e3dceecbe 100644 --- a/arch/arm/dts/rk3326-odroid-go2.dts +++ b/arch/arm/dts/rk3326-odroid-go2.dts @@ -617,6 +617,22 @@ status = "okay"; };
+&sfc { + pinctrl-0 = <&sfc_clk &sfc_cs0 &sfc_bus2>; + pinctrl-names = "default"; + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + flash@0 { + compatible = "jedec,spi-nor"; + reg = <0>; + spi-max-frequency = <108000000>; + spi-rx-bus-width = <2>; + spi-tx-bus-width = <1>; + }; +}; + &tsadc { status = "okay"; };