You have to use the 4 bus to work if someone wants to support
the spi devices, since the the pin is re-used by data[5-8] and spi.
If support the spi making the happy work, that will waste the
emmc performance.
Moment, the kylin hasn't the spi devices to work, so maybe we need wait
the new required to enable in kylin board.
Anyway, the spi should be needed land in rk3036 dts.
Signed-off-by: Caesar Wang <wxt at rock-chips.com>
---
Changes in v4:
- Add this patch included in kylin series patches.
arch/arm/boot/dts/rk3036.dtsi | 42 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/arch/arm/boot/dts/rk3036.dtsi b/arch/arm/boot/dts/rk3036.dtsi
index 532f232..40a5017 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 +486,23 @@
status = "disabled";
};
+ spi: spi at 20074000 {
+ compatible = "rockchip,rockchip-spi";
+ reg = <0x20074000 0x1000>;
+ interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi_txd &spi_rxd &spi_clk &spi_cs0 &spi_cs1>;
+ num-cs = <2>;
+ clocks =<&cru PCLK_SPI>, <&cru SCLK_SPI>;
+ clock-names = "apb-pclk","spi_pclk";
+ dmas = <&pdma 8>, <&pdma 9>;
+ #dma-cells = <2>;
+ dma-names = "tx", "rx";
+ status = "disabled";
+ };
+
pinctrl: pinctrl {
compatible = "rockchip,rk3036-pinctrl";
rockchip,grf = <&grf>;
@@ -723,5 +741,29 @@
};
/* 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:spi0-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
