Merge tag 'u-boot-at91-2023.04-a' of https://source.denx.de/u-boot/custodians/u-boot-at91 into next

First set of u-boot-at91 features for the 2023.04 cycle:

This feature set includes the new DM-based NAND flash driver (old non-DM
driver is still kept for backwards compatibility), and the move to DM
NAND flash driver for sam9x60ek board. Feature set also includes
devicetree alignment for sama7g5 with Linux, devicetree alignment on USB
with Linux for all boards (sama5, sam9x60), chip id for sama7g5, minor
configs and tweaks.

12 files changed, 524 insertions, 25 deletions

diff --git a/arch/arm/dts/at91-sam9x60_curiosity.dts b/arch/arm/dts/at91-sam9x60_curiosity.dts
index 7c5b6ae2b8..d6ae3d648d 100644
--- a/arch/arm/dts/at91-sam9x60_curiosity.dts
+++ b/arch/arm/dts/at91-sam9x60_curiosity.dts
@@ -49,6 +49,13 @@
 						atmel,pins =
 							<AT91_PIOD 14 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
 					};
+
+					usb1 {
+						pinctrl_usb_default: usb_default {
+							atmel,pins = <AT91_PIOD 15 AT91_PERIPH_GPIO AT91_PINCTRL_NONE
+									AT91_PIOD 18 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+						};
+					};
 			};
 		};
 	};
@@ -89,3 +96,17 @@
 	phy-mode = "rmii";
 	status = "okay";
 };
+
+&usb1 {
+	num-ports = <3>;
+	atmel,vbus-gpio = <0
+			   &pioD 15 GPIO_ACTIVE_HIGH
+			   &pioD 18 GPIO_ACTIVE_HIGH>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usb_default>;
+	status = "okay";
+};
+
+&usb2 {
+	status = "okay";
+};
diff --git a/arch/arm/dts/at91-sama5d27_wlsom1_ek.dts b/arch/arm/dts/at91-sama5d27_wlsom1_ek.dts
index eec183d5de..6d4b35ea96 100644
--- a/arch/arm/dts/at91-sama5d27_wlsom1_ek.dts
+++ b/arch/arm/dts/at91-sama5d27_wlsom1_ek.dts
@@ -143,7 +143,32 @@
 					pinmux = <PIN_PC9__GPIO>;
 					bias-pull-up;
 				};
+
+				pinctrl_usb_default: usb_default {
+					pinmux = <PIN_PA10__GPIO>;
+					bias-disable;
+				};
+
+				pinctrl_usba_vbus: usba_vbus {
+					pinmux = <PIN_PA16__GPIO>;
+					bias-disable;
+				};
 			};
 		};
 	};
 };
+
+&usb1 {
+	num-ports = <3>;
+	atmel,vbus-gpio = <0
+			   &pioA PIN_PA10 GPIO_ACTIVE_HIGH
+			   0
+			  >;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usb_default>;
+	status = "okay";
+};
+
+&usb2 {
+	status = "okay";
+};
diff --git a/arch/arm/dts/at91-sama5d2_icp.dts b/arch/arm/dts/at91-sama5d2_icp.dts
index 2dffae9c5c..4f796c6c94 100644
--- a/arch/arm/dts/at91-sama5d2_icp.dts
+++ b/arch/arm/dts/at91-sama5d2_icp.dts
@@ -154,7 +154,29 @@
 						 <PIN_PA13__SDMMC0_CD>;
 					bias-disable;
 				};
+
+				pinctrl_usb_default: usb_default {
+					pinmux = <PIN_PC17__GPIO>;
+					bias-disable;
+				};
+
+				pinctrl_usba_vbus: usba_vbus {
+					pinmux = <PIN_PD23__GPIO>;
+					bias-disable;
+				};
 			};
 		};
 	};
 };
+
+&usb1 {
+	num-ports = <3>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usb_default>;
+	status = "okay";
+};
+
+&usb2 {
+	phy_type = "hsic";
+	status = "okay";
+};
diff --git a/arch/arm/dts/at91-sama7g5ek-u-boot.dtsi b/arch/arm/dts/at91-sama7g5ek-u-boot.dtsi
index d294ddb54a..a54cfaccbf 100644
--- a/arch/arm/dts/at91-sama7g5ek-u-boot.dtsi
+++ b/arch/arm/dts/at91-sama7g5ek-u-boot.dtsi
@@ -10,13 +10,88 @@
  *
  */
 
+#include "sama7g5-pinfunc.h"
+#include <dt-bindings/reset/sama7g5-reset.h>
+#include <dt-bindings/clock/at91.h>
+
 / {
 	chosen {
 		u-boot,dm-pre-reloc;
 	};
 
+	utmi {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		usb_phy0: phy@0 {
+			compatible = "microchip,sama7g5-usb-phy";
+			sfr-phandle = <&sfr>;
+			reg = <0>;
+			clocks = <&utmi_clk USB_UTMI1>;
+			clock-names = "utmi_clk";
+			status = "disabled";
+			#phy-cells = <0>;
+		};
+
+		usb_phy1: phy@1 {
+			compatible = "microchip,sama7g5-usb-phy";
+			sfr-phandle = <&sfr>;
+			reg = <1>;
+			clocks = <&utmi_clk USB_UTMI2>;
+			clock-names = "utmi_clk";
+			status = "disabled";
+			#phy-cells = <0>;
+		};
+
+		usb_phy2: phy@2 {
+			compatible = "microchip,sama7g5-usb-phy";
+			sfr-phandle = <&sfr>;
+			reg = <2>;
+			clocks = <&utmi_clk USB_UTMI3>;
+			clock-names = "utmi_clk";
+			status = "disabled";
+			#phy-cells = <0>;
+		};
+	};
+
+	utmi_clk: utmi-clk {
+		compatible = "microchip,sama7g5-utmi-clk";
+		sfr-phandle = <&sfr>;
+		#clock-cells = <1>;
+		clocks = <&pmc PMC_TYPE_CORE 27>;
+		clock-names = "utmi_clk";
+		resets = <&reset_controller SAMA7G5_RESET_USB_PHY1>,
+			 <&reset_controller SAMA7G5_RESET_USB_PHY2>,
+			 <&reset_controller SAMA7G5_RESET_USB_PHY3>;
+		reset-names = "usb0_reset", "usb1_reset", "usb2_reset";
+	};
+
 	soc {
 		u-boot,dm-pre-reloc;
+
+		usb2: usb@400000 {
+			compatible = "microchip,sama7g5-ohci", "usb-ohci";
+			reg = <0x00400000 0x100000>;
+			interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&pmc PMC_TYPE_PERIPHERAL 106>, <&utmi_clk USB_UTMI1>, <&usb_clk>;
+			clock-names = "ohci_clk", "hclk", "uhpck";
+			status = "disabled";
+		};
+
+		usb3: usb@500000 {
+			compatible = "atmel,at91sam9g45-ehci", "usb-ehci";
+			reg = <0x00500000 0x100000>;
+			interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&usb_clk>, <&pmc PMC_TYPE_PERIPHERAL 106>;
+			clock-names = "usb_clk", "ehci_clk";
+			status = "disabled";
+		};
+
+		sfr: sfr@e1624000 {
+			compatible = "microchip,sama7g5-sfr", "syscon";
+			reg = <0xe1624000 0x4000>;
+		};
 	};
 };
 
@@ -38,6 +113,11 @@
 
 &pioA {
 	u-boot,dm-pre-reloc;
+
+	pinctrl_usb_default: usb_default {
+		pinmux = <PIN_PC6__GPIO>;
+		bias-disable;
+	};
 };
 
 &pit64b0 {
@@ -60,3 +140,31 @@
 	u-boot,dm-pre-reloc;
 };
 
+&usb2 {
+	num-ports = <3>;
+	atmel,vbus-gpio = <0
+			   0
+			   &pioA PIN_PC6 GPIO_ACTIVE_HIGH
+			  >;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usb_default>;
+	phys = <&usb_phy2>;
+	phy-names = "usb";
+	status = "okay";
+};
+
+&usb3 {
+	status = "okay";
+};
+
+&usb_phy0 {
+	status = "okay";
+};
+
+&usb_phy1 {
+	status = "okay";
+};
+
+&usb_phy2 {
+	status = "okay";
+};
diff --git a/arch/arm/dts/at91-sama7g5ek.dts b/arch/arm/dts/at91-sama7g5ek.dts
index aed84f15a1..9b247fcaf6 100644
--- a/arch/arm/dts/at91-sama7g5ek.dts
+++ b/arch/arm/dts/at91-sama7g5ek.dts
@@ -45,13 +45,13 @@
 		};
 	};
 
-	gpio_keys {
+	gpio-keys {
 		compatible = "gpio-keys";
 
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_key_gpio_default>;
 
-		bp1 {
+		button {
 			label = "PB_USER";
 			gpios = <&pioA PIN_PA12 GPIO_ACTIVE_LOW>;
 			linux,code = <KEY_PROG1>;
@@ -244,8 +244,8 @@
 			regulators {
 				vdd_3v3: VDD_IO {
 					regulator-name = "VDD_IO";
-					regulator-min-microvolt = <1200000>;
-					regulator-max-microvolt = <3700000>;
+					regulator-min-microvolt = <3300000>;
+					regulator-max-microvolt = <3300000>;
 					regulator-initial-mode = <2>;
 					regulator-allowed-modes = <2>, <4>;
 					regulator-always-on;
@@ -264,8 +264,8 @@
 
 				vddioddr: VDD_DDR {
 					regulator-name = "VDD_DDR";
-					regulator-min-microvolt = <1300000>;
-					regulator-max-microvolt = <1450000>;
+					regulator-min-microvolt = <1350000>;
+					regulator-max-microvolt = <1350000>;
 					regulator-initial-mode = <2>;
 					regulator-allowed-modes = <2>, <4>;
 					regulator-always-on;
@@ -285,8 +285,8 @@
 
 				vddcore: VDD_CORE {
 					regulator-name = "VDD_CORE";
-					regulator-min-microvolt = <1100000>;
-					regulator-max-microvolt = <1850000>;
+					regulator-min-microvolt = <1150000>;
+					regulator-max-microvolt = <1150000>;
 					regulator-initial-mode = <2>;
 					regulator-allowed-modes = <2>, <4>;
 					regulator-always-on;
@@ -306,7 +306,7 @@
 				vddcpu: VDD_OTHER {
 					regulator-name = "VDD_OTHER";
 					regulator-min-microvolt = <1050000>;
-					regulator-max-microvolt = <1850000>;
+					regulator-max-microvolt = <1250000>;
 					regulator-initial-mode = <2>;
 					regulator-allowed-modes = <2>, <4>;
 					regulator-ramp-delay = <3125>;
@@ -326,8 +326,8 @@
 
 				vldo1: LDO1 {
 					regulator-name = "LDO1";
-					regulator-min-microvolt = <1200000>;
-					regulator-max-microvolt = <3700000>;
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
 					regulator-always-on;
 
 					regulator-state-standby {
@@ -707,7 +707,6 @@
 		ck_cd_rstn_vddsel {
 			pinmux = <PIN_PA0__SDMMC0_CK>,
 				 <PIN_PA2__SDMMC0_RSTN>,
-				 <PIN_PA14__SDMMC0_CD>,
 				 <PIN_PA11__SDMMC0_DS>;
 			slew-rate = <0>;
 			bias-pull-up;
diff --git a/arch/arm/dts/sam9x60.dtsi b/arch/arm/dts/sam9x60.dtsi
index a5c429eb3a..2b93d08938 100644
--- a/arch/arm/dts/sam9x60.dtsi
+++ b/arch/arm/dts/sam9x60.dtsi
@@ -69,6 +69,50 @@
 		#size-cells = <1>;
 		ranges;
 
+		usb1: usb@600000 {
+			compatible = "atmel,at91rm9200-ohci", "usb-ohci";
+			reg = <0x00600000 0x100000>;
+			clocks = <&pmc PMC_TYPE_PERIPHERAL 22>, <&pmc PMC_TYPE_PERIPHERAL 22>, <&pmc PMC_TYPE_SYSTEM 21>;
+			clock-names = "ohci_clk", "hclk", "uhpck";
+			status = "disabled";
+		};
+
+		usb2: usb@700000 {
+			compatible = "atmel,at91sam9g45-ehci", "usb-ehci";
+			reg = <0x00700000 0x100000>;
+			clocks = <&pmc PMC_TYPE_CORE 8>, <&pmc PMC_TYPE_PERIPHERAL 22>;
+			clock-names = "usb_clk", "ehci_clk";
+			assigned-clocks = <&pmc PMC_TYPE_CORE 8>;
+			assigned-clock-rates = <480000000>;
+			status = "disabled";
+		};
+
+		ebi: ebi@10000000 {
+			compatible = "microchip,sam9x60-ebi";
+			#address-cells = <2>;
+			#size-cells = <1>;
+			atmel,smc = <&smc>;
+			microchip,sfr = <&sfr>;
+			reg = <0x10000000 0x60000000>;
+			ranges = <0x0 0x0 0x10000000 0x10000000
+				  0x1 0x0 0x20000000 0x10000000
+				  0x2 0x0 0x30000000 0x10000000
+				  0x3 0x0 0x40000000 0x10000000
+				  0x4 0x0 0x50000000 0x10000000
+				  0x5 0x0 0x60000000 0x10000000>;
+			clocks = <&pmc PMC_TYPE_CORE 11>;
+			status = "disabled";
+
+			nand_controller: nand-controller {
+				compatible = "microchip,sam9x60-nand-controller";
+				ecc-engine = <&pmecc>;
+				#address-cells = <2>;
+				#size-cells = <1>;
+				ranges;
+				status = "disabled";
+			};
+		};
+
 		sdhci0: sdhci-host@80000000 {
 			compatible = "microchip,sam9x60-sdhci";
 			reg = <0x80000000 0x300>;
@@ -82,6 +126,19 @@
 			pinctrl-0 = <&pinctrl_sdhci0>;
 		};
 
+		sdhci1: sdhci-host@90000000 {
+			compatible = "microchip,sam9x60-sdhci";
+			reg = <0x90000000 0x300>;
+			clocks = <&pmc PMC_TYPE_PERIPHERAL 26>, <&pmc PMC_TYPE_GCK 26>;
+			clock-names = "hclock", "multclk";
+			assigned-clocks = <&pmc PMC_TYPE_GCK 26>;
+			assigned-clock-rates = <100000000>;
+			assigned-clock-parents = <&pmc PMC_TYPE_CORE 10>; /* ID_PLL_A_DIV */
+			bus-width = <4>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&pinctrl_sdhci1>;
+		};
+
 		apb {
 			compatible = "simple-bus";
 			#address-cells = <1>;
@@ -119,6 +176,11 @@
 				status = "disabled";
 			};
 
+			sfr: sfr@f8050000 {
+				compatible = "microchip,sam9x60-sfr", "syscon";
+				reg = <0xf8050000 0x100>;
+			};
+
 			dbgu: serial@fffff200 {
 				compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
 				reg = <0xfffff200 0x200>;
@@ -180,6 +242,29 @@
 							 (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI | AT91_PINCTRL_SLEWRATE_ENA)>;	/* PA20 DAT3 periph A with pullup */
 					};
 				};
+
+				sdhci1 {
+					pinctrl_sdhci1: sdhci1 {
+						atmel,pins =
+							<AT91_PIOA 13 AT91_PERIPH_B (AT91_PINCTRL_DRIVE_STRENGTH_HI)				/* PA13 CK periph B */
+							 AT91_PIOA 12 AT91_PERIPH_B (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI)	/* PA12 CMD periph B with pullup */
+							 AT91_PIOA 11 AT91_PERIPH_B (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI)	/* PA11 DAT0 periph B with pullup */
+							 AT91_PIOA  2 AT91_PERIPH_B (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI)	/* PA2 DAT1 periph B with pullup */
+							 AT91_PIOA  3 AT91_PERIPH_B (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI)	/* PA3 DAT2 periph B with pullup */
+							 AT91_PIOA  4 AT91_PERIPH_B (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI)>;	/* PA4 DAT3 periph B with pullup */
+					};
+				};
+			};
+
+			pmecc: ecc-engine@ffffe000 {
+				compatible = "microchip,sam9x60-pmecc", "atmel,at91sam9g45-pmecc";
+				reg = <0xffffe000 0x300>,
+				      <0xffffe600 0x100>;
+			};
+
+			smc: smc@ffffea00 {
+				compatible = "microchip,sam9x60-smc", "atmel,at91sam9260-smc", "syscon";
+				reg = <0xffffea00 0x100>;
 			};
 
 			pioA: gpio@fffff400 {
diff --git a/arch/arm/dts/sam9x60ek.dts b/arch/arm/dts/sam9x60ek.dts
index eb44868a3e..45e2f4cc40 100644
--- a/arch/arm/dts/sam9x60ek.dts
+++ b/arch/arm/dts/sam9x60ek.dts
@@ -80,6 +80,44 @@
 			};
 
 			pinctrl {
+				nand {
+					pinctrl_nand_oe_we: nand-oe-we-0 {
+						atmel,pins =
+							<AT91_PIOD 0 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS)
+							 AT91_PIOD 1 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS)>;
+					};
+
+					pinctrl_nand_rb: nand-rb-0 {
+						atmel,pins =
+							<AT91_PIOD 5 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
+					};
+
+					pinctrl_nand_cs: nand-cs-0 {
+						atmel,pins =
+							<AT91_PIOD 4 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
+					};
+				};
+
+				ebi {
+					pinctrl_ebi_data_0_7: ebi-data-lsb-0 {
+						atmel,pins =
+							<AT91_PIOD 6 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS)
+							 AT91_PIOD 7 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS)
+							 AT91_PIOD 8 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS)
+							 AT91_PIOD 9 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS)
+							 AT91_PIOD 10 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS)
+							 AT91_PIOD 11 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS)
+							 AT91_PIOD 12 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS)
+							 AT91_PIOD 13 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS)>;
+					};
+
+					pinctrl_ebi_addr_nand: ebi-addr-0 {
+						atmel,pins =
+							<AT91_PIOD 2 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS)
+							 AT91_PIOD 3 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS)>;
+					};
+				};
+
 				pinctrl_qspi: qspi {
 					atmel,pins =
 						<AT91_PIOB 19 AT91_PERIPH_A AT91_PINCTRL_NONE
@@ -101,6 +139,78 @@
 						<AT91_PIOD 14 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
 				};
 
+				usb1 {
+					pinctrl_usb_default: usb_default {
+						atmel,pins = <AT91_PIOD 15 AT91_PERIPH_GPIO AT91_PINCTRL_NONE
+								AT91_PIOD 16 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+					};
+				};
+
+			};
+		};
+	};
+};
+
+&ebi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ebi_addr_nand &pinctrl_ebi_data_0_7>;
+	status = "okay";
+
+	nand_controller: nand-controller {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_nand_oe_we &pinctrl_nand_cs &pinctrl_nand_rb>;
+		status = "okay";
+
+		nand@3 {
+			reg = <0x3 0x0 0x800000>;
+			rb-gpios = <&pioD 5 GPIO_ACTIVE_HIGH>;
+			cs-gpios = <&pioD 4 GPIO_ACTIVE_HIGH>;
+			nand-bus-width = <8>;
+			nand-ecc-mode = "hw";
+			nand-ecc-strength = <8>;
+			nand-ecc-step-size = <512>;
+			nand-on-flash-bbt;
+			label = "atmel_nand";
+
+			partitions {
+				compatible = "fixed-partitions";
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				at91bootstrap@0 {
+					label = "at91bootstrap";
+					reg = <0x0 0x40000>;
+				};
+
+				uboot@40000 {
+					label = "u-boot";
+					reg = <0x40000 0xc0000>;
+				};
+
+				ubootenvred@100000 {
+					label = "U-Boot Env Redundant";
+					reg = <0x100000 0x40000>;
+				};
+
+				ubootenv@140000 {
+					label = "U-Boot Env";
+					reg = <0x140000 0x40000>;
+				};
+
+				dtb@180000 {
+					label = "device tree";
+					reg = <0x180000 0x80000>;
+				};
+
+				kernel@200000 {
+					label = "kernel";
+					reg = <0x200000 0x600000>;
+				};
+
+				rootfs@800000 {
+					label = "rootfs";
+					reg = <0x800000 0x1f800000>;
+				};
 			};
 		};
 	};
@@ -110,3 +220,17 @@
 	phy-mode = "rmii";
 	status = "okay";
 };
+
+&usb1 {
+	num-ports = <3>;
+	atmel,vbus-gpio = <0
+			   &pioD 15 GPIO_ACTIVE_HIGH
+			   &pioD 16 GPIO_ACTIVE_HIGH>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usb_default>;
+	status = "okay";
+};
+
+&usb2 {
+	status = "okay";
+};
diff --git a/arch/arm/dts/sama5d2.dtsi b/arch/arm/dts/sama5d2.dtsi
index 790b746ed1..187c2ff2fb 100644
--- a/arch/arm/dts/sama5d2.dtsi
+++ b/arch/arm/dts/sama5d2.dtsi
@@ -84,7 +84,6 @@
 				reg = <0xf0014000 0x160>;
 				#address-cells = <1>;
 				#size-cells = <0>;
-				#interrupt-cells = <1>;
 				u-boot,dm-pre-reloc;
 
 				main: mainck {
diff --git a/arch/arm/dts/sama7g5.dtsi b/arch/arm/dts/sama7g5.dtsi
index d38090d7dd..6388a60e53 100644
--- a/arch/arm/dts/sama7g5.dtsi
+++ b/arch/arm/dts/sama7g5.dtsi
@@ -15,6 +15,7 @@
 #include <dt-bindings/clk/at91.h>
 #include <dt-bindings/dma/at91.h>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/mfd/at91-usart.h>
 
 / {
 	model = "Microchip SAMA7G5 family SoC";
@@ -195,11 +196,11 @@
 				<GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
 				<GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
 				<GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&pmc PMC_TYPE_PERIPHERAL 11>;
 			interrupt-controller;
 			#interrupt-cells = <2>;
 			gpio-controller;
 			#gpio-cells = <2>;
+			clocks = <&pmc PMC_TYPE_PERIPHERAL 11>;
 		};
 
 		pmc: pmc@e0018000 {
@@ -211,6 +212,13 @@
 			clock-names = "td_slck", "md_slck", "main_xtal", "main_rc";
 		};
 
+		reset_controller: reset-controller@e001d000 {
+			compatible = "microchip,sama7g5-rstc";
+			reg = <0xe001d000 0xc>, <0xe001d0e4 0x4>;
+			#reset-cells = <1>;
+			clocks = <&clk32k 0>;
+		};
+
 		shdwc: shdwc@e001d010 {
 			compatible = "microchip,sama7g5-shdwc", "syscon";
 			reg = <0xe001d010 0x10>;
@@ -229,13 +237,6 @@
 			clocks = <&clk32k 0>;
 		};
 
-		reset_controller: rstc@e001d000 {
-			compatible = "microchip,sama7g5-rstc", "microchip,sam9x60-rstc";
-			reg = <0xe001d000 0xc>, <0xe001d0e4 0x4>;
-			#reset-cells = <1>;
-			clocks = <&clk32k 0>;
-		};
-
 		clk32k: clock-controller@e001d050 {
 			compatible = "microchip,sama7g5-sckc", "microchip,sam9x60-sckc";
 			reg = <0xe001d050 0x4>;
@@ -620,6 +621,7 @@
 			uart0: serial@200 {
 				compatible = "atmel,at91sam9260-usart";
 				reg = <0x200 0x200>;
+				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
 				interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&pmc PMC_TYPE_PERIPHERAL 38>;
 				clock-names = "usart";
@@ -668,6 +670,7 @@
 			uart3: serial@200 {
 				compatible = "atmel,at91sam9260-usart";
 				reg = <0x200 0x200>;
+				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
 				interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&pmc PMC_TYPE_PERIPHERAL 41>;
 				clock-names = "usart";
@@ -711,6 +714,7 @@
 			uart4: serial@200 {
 				compatible = "atmel,at91sam9260-usart";
 				reg = <0x200 0x200>;
+				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
 				interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&pmc PMC_TYPE_PERIPHERAL 42>;
 				clock-names = "usart";
@@ -736,6 +740,7 @@
 			uart7: serial@200 {
 				compatible = "atmel,at91sam9260-usart";
 				reg = <0x200 0x200>;
+				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
 				interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&pmc PMC_TYPE_PERIPHERAL 45>;
 				clock-names = "usart";
@@ -884,9 +889,9 @@
 				#address-cells = <1>;
 				#size-cells = <0>;
 				atmel,fifo-size = <32>;
-				dmas = <&dma0 AT91_XDMAC_DT_PERID(27)>,
-					    <&dma0 AT91_XDMAC_DT_PERID(28)>;
-				dma-names = "rx", "tx";
+				dmas = <&dma0 AT91_XDMAC_DT_PERID(28)>,
+					    <&dma0 AT91_XDMAC_DT_PERID(27)>;
+				dma-names = "tx", "rx";
 				status = "disabled";
 			};
 		};
diff --git a/arch/arm/mach-at91/armv7/sama7g5_devices.c b/arch/arm/mach-at91/armv7/sama7g5_devices.c
index 0b702c7fb7..6f2c1fc914 100644
--- a/arch/arm/mach-at91/armv7/sama7g5_devices.c
+++ b/arch/arm/mach-at91/armv7/sama7g5_devices.c
@@ -4,7 +4,31 @@
  *		      Eugen Hristev <eugen.hristev@microchip.com>
  */
 
+#include <asm/arch/sama7g5.h>
+
 char *get_cpu_name(void)
 {
-	return "SAMA7G5";
+	unsigned int extension_id = get_extension_chip_id();
+
+	if (cpu_is_sama7g5())
+		switch (extension_id) {
+		case ARCH_EXID_SAMA7G51:
+			return "SAMA7G51";
+		case ARCH_EXID_SAMA7G52:
+			return "SAMA7G52";
+		case ARCH_EXID_SAMA7G53:
+			return "SAMA7G53";
+		case ARCH_EXID_SAMA7G54:
+			return "SAMA7G54";
+		case ARCH_EXID_SAMA7G54_D1G:
+			return "SAMA7G54 1Gb DDR3L SiP";
+		case ARCH_EXID_SAMA7G54_D2G:
+			return "SAMA7G54 2Gb DDR3L SiP";
+		case ARCH_EXID_SAMA7G54_D4G:
+			return "SAMA7G54 4Gb DDR3L SiP";
+		default:
+			return "Unknown CPU type";
+		}
+	else
+		return "Unknown CPU type";
 }
diff --git a/arch/arm/mach-at91/include/mach/sama7-sfr.h b/arch/arm/mach-at91/include/mach/sama7-sfr.h
new file mode 100644
index 0000000000..a987ff5465
--- /dev/null
+++ b/arch/arm/mach-at91/include/mach/sama7-sfr.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Microchip SFR (Special Function Registers) registers for SAMA7 family.
+ *
+ * Copyright (C) 2022 Microchip Technology Inc. and its subsidiaries
+ *
+ * Author: Cristian Birsan <cristian.birsan@microchip.com>
+ */
+
+#ifndef _LINUX_MFD_SYSCON_AT91_SAMA7_SFR_H
+#define _LINUX_MFD_SYSCON_AT91_SAMA7_SFR_H
+
+#define SAMA7_SFR_OHCIICR	0x00	/* OHCI INT Configuration Register */
+#define SAMA7_SFR_OHCIISR	0x04	/* OHCI INT Status Register */
+/* 0x08 ~ 0xe3: Reserved */
+#define SAMA7_SFR_WPMR		0xe4	/* Write Protection Mode Register */
+#define SAMA7_SFR_WPSR		0xe4	/* Write Protection Status Register */
+/* 0xec ~ 0x200b: Reserved */
+#define SAMA7_SFR_DEBUG		0x200c	/* Debug Register */
+
+/* 0x2010 ~ 0x2027: Reserved */
+#define SAMA7_SFR_EHCIOHCI	0x2020  /* EHCI OHCI Clock Configuration Reg */
+
+#define SAMA7_SFR_HSS_AXI_QOS	0x2028	/* HSS AXI QOS Register */
+#define SAMA7_SFR_UDDRC		0x202c  /* UDDRC Register */
+#define SAMA7_SFR_CAN_SRAM_SEL	0x2030	/* CAN SRAM Select. Register */
+/* 0x2034 ~ 0x203f: Reserved */
+
+#define SAMA7_SFR_UTMI0		0x2040
+#define SAMA7_SFR_UTMI0R(x)	(SAMA7_SFR_UTMI0 + 4 * (x))
+
+#define SAMA7_SFR_UTMI0R0	0x2040	/* UTMI0 Configuration Register */
+#define SAMA7_SFR_UTMI0R1	0x2044	/* UTMI1 Configuration Register */
+#define SAMA7_SFR_UTMI0R2	0x2048	/* UTMI2 Configuration Register */
+
+/* Field definitions */
+#define SAMA7_SFR_OHCIICR_ARIE			BIT(0)
+#define SAMA7_SFR_OHCIICR_APPSTART		BIT(1)
+#define SAMA7_SFR_OHCIICR_USB_SUSP(x)		BIT(8 + (x))
+#define SAMA7_SFR_OHCIICR_USB_SUSPEND		GENMASK(10, 8)
+
+#define SAMA7_SFR_OHCIISR_RIS(x)		BIT(x)
+
+#define SAMA7_SFR_WPMR_WPEN			BIT(0)
+#define SAMA7_SFR_WPMR_KEY			0x53465200 /* SFR in ASCII*/
+#define SAMA7_SFR_WPMR_WPKEY_MASK		GENMASK(31, 8)
+
+#define SAMA7_SFR_WPSR_WPSRC_MASK		GENMASK(23, 8)
+#define SAMA7_SFR_WPSR_WPVS_MASK		BIT(0)
+
+#define SAMA7_SFR_CAN_SRAM_UPPER(x)		BIT(x)
+
+#define SAMA7_SFR_UTMI_RX_VBUS			BIT(25) /* VBUS Valid bit */
+#define SAMA7_SFR_UTMI_RX_TX_PREEM_AMP_TUNE_1X	BIT(23) /* TXPREEMPAMPTUNE 1x */
+#define SAMA7_SFR_UTMI_COMMONON			BIT(3)  /* PLL Common ON bit */
+
+#define SAMA7_SFR_EHCIOHCI_PHYCLK		BIT(1)  /* Alternate PHY Clk */
+
+#endif /* _LINUX_MFD_SYSCON_AT91_SAMA7_SFR_H */
diff --git a/arch/arm/mach-at91/include/mach/sama7g5.h b/arch/arm/mach-at91/include/mach/sama7g5.h
index ae43e8700b..621a26f6eb 100644
--- a/arch/arm/mach-at91/include/mach/sama7g5.h
+++ b/arch/arm/mach-at91/include/mach/sama7g5.h
@@ -67,7 +67,35 @@
 
 #define ATMEL_BASE_PIT64BC	ATMEL_BASE_PIT64B0
 
+/* SAMA7G5 series chip id definitions */
+#define ARCH_ID_SAMA7G5		0x80162100
+#define ARCH_EXID_SAMA7G51	0x00000003
+#define ARCH_EXID_SAMA7G52	0x00000002
+#define ARCH_EXID_SAMA7G53	0x00000001
+#define ARCH_EXID_SAMA7G54	0x00000000
+#define ARCH_EXID_SAMA7G54_D1G	0x00000018
+#define ARCH_EXID_SAMA7G54_D2G	0x00000020
+#define ARCH_EXID_SAMA7G54_D4G	0x00000028
+
+#define cpu_is_sama7g5()	(get_chip_id() == ARCH_ID_SAMA7G5)
+#define cpu_is_sama7g51()	(cpu_is_sama7g5() && \
+		(get_extension_chip_id() == ARCH_EXID_SAMA7G51))
+#define cpu_is_sama7g52()	(cpu_is_sama7g5() && \
+		(get_extension_chip_id() == ARCH_EXID_SAMA7G52))
+#define cpu_is_sama7g53()	(cpu_is_sama7g5() && \
+		(get_extension_chip_id() == ARCH_EXID_SAMA7G53))
+#define cpu_is_sama7g54()	(cpu_is_sama7g5() && \
+		(get_extension_chip_id() == ARCH_EXID_SAMA7G54))
+#define cpu_is_sama7g54d1g()	(cpu_is_sama7g5() && \
+		(get_extension_chip_id() == ARCH_EXID_SAMA7G54_D1G))
+#define cpu_is_sama7g54d2g()	(cpu_is_sama7g5() && \
+		(get_extension_chip_id() == ARCH_EXID_SAMA7G54_D2G))
+#define cpu_is_sama7g54d4g()	(cpu_is_sama7g5() && \
+		(get_extension_chip_id() == ARCH_EXID_SAMA7G54_D4G))
+
 #ifndef __ASSEMBLY__
+unsigned int get_chip_id(void);
+unsigned int get_extension_chip_id(void);
 char *get_cpu_name(void);
 #endif