QSPI0 comunicates with a MX66LM1G45G SPI NOR flash.
Enable the controller and describe the flash.
Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
---
arch/arm/boot/dts/at91-sama7g5ek.dts | 73 ++++++++++++++++++++++++++++
1 file changed, 73 insertions(+)
diff --git a/arch/arm/boot/dts/at91-sama7g5ek.dts b/arch/arm/boot/dts/at91-sama7g5ek.dts
index 0e1975c6812e..ccf9e224da78 100644
--- a/arch/arm/boot/dts/at91-sama7g5ek.dts
+++ b/arch/arm/boot/dts/at91-sama7g5ek.dts
@@ -13,6 +13,7 @@
#include "sama7g5.dtsi"
#include <dt-bindings/mfd/atmel-flexcom.h>
#include <dt-bindings/input/input.h>
+#include <dt-bindings/pinctrl/at91.h>
/ {
model = "Microchip SAMA7G5-EK";
@@ -134,6 +135,59 @@ &cpu0 {
cpu-supply = <&vddcpu>;
};
+&qspi0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_qspi>;
+ status = "okay";
+
+ flash@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <133000000>;
+ spi-tx-bus-width = <8>;
+ spi-rx-bus-width = <8>;
+ m25p,fast-read;
+
+ at91bootstrap@0 {
+ label = "ospi: at91bootstrap";
+ reg = <0x0 0x40000>;
+ };
+
+ bootloader@40000 {
+ label = "ospi: bootloader";
+ reg = <0x40000 0xc0000>;
+ };
+
+ bootloaderenvred@100000 {
+ label = "ospi: bootloader env redundant";
+ reg = <0x100000 0x40000>;
+ };
+
+ bootloaderenv@140000 {
+ label = "ospi: bootloader env";
+ reg = <0x140000 0x40000>;
+ };
+
+ dtb@180000 {
+ label = "ospi: device tree";
+ reg = <0x180000 0x80000>;
+ };
+
+ kernel@200000 {
+ label = "ospi: kernel";
+ reg = <0x200000 0x600000>;
+ };
+
+ rootfs@800000 {
+ label = "ospi: rootfs";
+ reg = <0x800000 0x7800000>;
+ };
+
+ };
+};
+
&dma0 {
status = "okay";
};
@@ -555,6 +609,25 @@ pinctrl_mikrobus1_spi: mikrobus1_spi {
bias-disable;
};
+ pinctrl_qspi: qspi {
+ pinmux = <PIN_PB12__QSPI0_IO0>,
+ <PIN_PB11__QSPI0_IO1>,
+ <PIN_PB10__QSPI0_IO2>,
+ <PIN_PB9__QSPI0_IO3>,
+ <PIN_PB16__QSPI0_IO4>,
+ <PIN_PB17__QSPI0_IO5>,
+ <PIN_PB18__QSPI0_IO6>,
+ <PIN_PB19__QSPI0_IO7>,
+ <PIN_PB13__QSPI0_CS>,
+ <PIN_PB14__QSPI0_SCK>,
+ <PIN_PB15__QSPI0_SCKN>,
+ <PIN_PB20__QSPI0_DQS>,
+ <PIN_PB21__QSPI0_INT>;
+ bias-disable;
+ slew-rate = <0>;
+ atmel,drive-strength = <ATMEL_PIO_DRVSTR_HI>;
+ };
+
pinctrl_sdmmc0_default: sdmmc0_default {
cmd_data {
pinmux = <PIN_PA1__SDMMC0_CMD>,
--
2.25.1
