ARM: dts: at91: sam9x60ek: Enable qspi node

The sam9x60 qspi controller uses 2 clocks, one for the peripheral register
access, the other for the qspi core and phy. Both are mandatory.

Enable the qspi node together with the SST26VF064B qspi nor flash
memory. Booting from the QSPI NOR flash is now possible.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>

3 files changed, 88 insertions, 0 deletions

diff --git a/arch/arm/dts/sam9x60.dtsi b/arch/arm/dts/sam9x60.dtsi
index a66d0a278a8..9c16ba1e6a8 100644
--- a/arch/arm/dts/sam9x60.dtsi
+++ b/arch/arm/dts/sam9x60.dtsi
@@ -22,6 +22,7 @@
 		serial0 = &dbgu;
 		gpio0 = &pioA;
 		gpio1 = &pioB;
+		spi0 = &qspi;
 	};
 
 	clocks {
@@ -60,6 +61,17 @@
 			#size-cells = <1>;
 			ranges;
 
+			qspi: spi@f0014000 {
+				compatible = "microchip,sam9x60-qspi";
+				reg = <0xf0014000 0x100>, <0x70000000 0x10000000>;
+				reg-names = "qspi_base", "qspi_mmap";
+				clocks =  <&qspi_clk>, <&qspick>;
+				clock-names = "pclk", "qspick";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
+
 			macb0: ethernet@f802c000 {
 				compatible = "cdns,sam9x60-macb", "cdns,macb";
 				reg = <0xf802c000 0x100>;
@@ -172,6 +184,18 @@
 					atmel,clk-divisors = <1 2 4 6>;
 				};
 
+				system: systemck {
+					compatible = "atmel,at91rm9200-clk-system";
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					qspick: qspick {
+						#clock-cells = <0>;
+						reg = <19>;
+						clocks = <&mck>;
+					};
+				};
+
 				periph: periphck {
 					compatible = "microchip,sam9x60-clk-peripheral";
 					#address-cells = <1>;
@@ -202,6 +226,11 @@
 						#clock-cells = <0>;
 						reg = <24>;
 					};
+
+					qspi_clk: qspi_clk {
+						#clock-cells = <0>;
+						reg = <35>;
+					};
 				};
 
 				generic: gck {
diff --git a/arch/arm/dts/sam9x60ek-u-boot.dtsi b/arch/arm/dts/sam9x60ek-u-boot.dtsi
index 68e220926e5..93cf1262f6f 100644
--- a/arch/arm/dts/sam9x60ek-u-boot.dtsi
+++ b/arch/arm/dts/sam9x60ek-u-boot.dtsi
@@ -31,6 +31,10 @@
 	u-boot,dm-pre-reloc;
 };
 
+&qspi {
+	u-boot,dm-pre-reloc;
+};
+
 &pinctrl_dbgu {
 	u-boot,dm-pre-reloc;
 };
@@ -39,10 +43,18 @@
 	u-boot,dm-pre-reloc;
 };
 
+&pinctrl_qspi {
+	u-boot,dm-pre-reloc;
+};
+
 &pioA {
 	u-boot,dm-pre-reloc;
 };
 
+&pioB {
+	u-boot,dm-pre-reloc;
+};
+
 &pmc {
 	u-boot,dm-pre-reloc;
 };
@@ -59,6 +71,14 @@
 	u-boot,dm-pre-reloc;
 };
 
+&system {
+	u-boot,dm-pre-reloc;
+};
+
+&qspick {
+	u-boot,dm-pre-reloc;
+};
+
 &periph {
 	u-boot,dm-pre-reloc;
 };
@@ -67,6 +87,10 @@
 	u-boot,dm-pre-reloc;
 };
 
+&pioB_clk {
+	u-boot,dm-pre-reloc;
+};
+
 &sdhci0_clk {
 	u-boot,dm-pre-reloc;
 };
@@ -75,6 +99,10 @@
 	u-boot,dm-pre-reloc;
 };
 
+&qspi_clk {
+	u-boot,dm-pre-reloc;
+};
+
 &generic {
 	u-boot,dm-pre-reloc;
 };
diff --git a/arch/arm/dts/sam9x60ek.dts b/arch/arm/dts/sam9x60ek.dts
index 6fe9f19f0bc..63904272f08 100644
--- a/arch/arm/dts/sam9x60ek.dts
+++ b/arch/arm/dts/sam9x60ek.dts
@@ -16,6 +16,37 @@
 	chosen {
 		stdout-path = &dbgu;
 	};
+
+	ahb {
+		apb {
+			qspi: spi@f0014000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_qspi>;
+				status = "okay";
+
+				nor_flash: sst26vf064@0 {
+					compatible = "spi-flash";
+					reg = <0>;
+					spi-max-frequency = <80000000>;
+					spi-rx-bus-width = <4>;
+					spi-tx-bus-width = <4>;
+				};
+			};
+
+			pinctrl {
+					pinctrl_qspi: qspi {
+						atmel,pins =
+							<AT91_PIOB 19 AT91_PERIPH_A AT91_PINCTRL_NONE
+							 AT91_PIOB 20 AT91_PERIPH_A AT91_PINCTRL_NONE
+							 AT91_PIOB 21 AT91_PERIPH_A AT91_PINCTRL_PULL_UP
+							 AT91_PIOB 22 AT91_PERIPH_A AT91_PINCTRL_PULL_UP
+							 AT91_PIOB 23 AT91_PERIPH_A AT91_PINCTRL_PULL_UP
+							 AT91_PIOB 24 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;
+					};
+
+			};
+		};
+	};
 };
 
 &macb0 {