This patch adds the needed spi node for rk3036 dts. We have to use the 4 bus emmc to work if someone want to support the spi devices, since the pins are re-used by emmc data[5-8] and spi. In some caseswe need to support the spi devices, that will waste the emmc performance.
Moment, the kylin/evb hasn't the spi devices to work, so maybe we need wait the new required to enable in kylin/evb board. Anyway, the spi should be needed land in rk3036 dts. Signed-off-by: Caesar Wang <w...@rock-chips.com> --- Changes in v4-->v4.1: - Remove the unused, as Heiko comments on https://patchwork.kernel.org/patch/8147761/ - Modify the commit. Changes in v4: - Add this patch included in kylin series patches. arch/arm/boot/dts/rk3036.dtsi | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/arch/arm/boot/dts/rk3036.dtsi b/arch/arm/boot/dts/rk3036.dtsi index 532f232..e62e28b 100644 --- a/arch/arm/boot/dts/rk3036.dtsi +++ b/arch/arm/boot/dts/rk3036.dtsi @@ -60,6 +60,7 @@ serial0 = &uart0; serial1 = &uart1; serial2 = &uart2; + spi = &spi; }; memory { @@ -485,6 +486,21 @@ status = "disabled"; }; + spi: spi@20074000 { + compatible = "rockchip,rockchip-spi"; + reg = <0x20074000 0x1000>; + interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>; + clocks =<&cru PCLK_SPI>, <&cru SCLK_SPI>; + clock-names = "apb-pclk","spi_pclk"; + dmas = <&pdma 8>, <&pdma 9>; + dma-names = "tx", "rx"; + pinctrl-names = "default"; + pinctrl-0 = <&spi_txd &spi_rxd &spi_clk &spi_cs0>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + pinctrl: pinctrl { compatible = "rockchip,rk3036-pinctrl"; rockchip,grf = <&grf>; @@ -723,5 +739,29 @@ }; /* no rts / cts for uart2 */ }; + + spi { + spi_txd:spi-txd { + rockchip,pins = <1 29 RK_FUNC_3 &pcfg_pull_default>; + }; + + spi_rxd:spi-rxd { + rockchip,pins = <1 28 RK_FUNC_3 &pcfg_pull_default>; + }; + + spi_clk:spi-clk { + rockchip,pins = <2 0 RK_FUNC_2 &pcfg_pull_default>; + }; + + spi_cs0:spi-cs0 { + rockchip,pins = <1 30 RK_FUNC_3 &pcfg_pull_default>; + + }; + + spi_cs1:spi-cs1 { + rockchip,pins = <1 31 RK_FUNC_3 &pcfg_pull_default>; + + }; + }; }; }; -- 1.9.1
