arm: at91: Add gardena-gateway-at91sam support

The GARDENA smart Gateway boards are equipped with an Atmel / Microchip
AT91SAM9G25 SoC and with 128 MiB of RAM and 256 MiB of NAND storage.
This patch adds support for this board including SPL support. Therefore
the AT91Boostrap is not needed on this platform any more.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Cc: Andreas Bießmann <andreas@biessmann.org>
Cc: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Heiko Schocher <hs@denx.de>

4 files changed, 136 insertions, 0 deletions

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index e148e96..930b7e0 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -609,6 +609,9 @@ dtb-$(CONFIG_TARGET_AT91SAM9X5EK) += \
 
 dtb-$(CONFIG_TARGET_AT91SAM9N12EK) += at91sam9n12ek.dtb
 
+dtb-$(CONFIG_TARGET_GARDENA_SMART_GATEWAY_AT91SAM) += \
+	at91sam9g25-gardena-smart-gateway.dtb
+
 dtb-$(CONFIG_TARGET_ETHERNUT5) += ethernut5.dtb
 
 dtb-$(CONFIG_TARGET_USB_A9263) += usb_a9263.dtb
diff --git a/arch/arm/dts/at91sam9g25-gardena-smart-gateway-u-boot.dtsi b/arch/arm/dts/at91sam9g25-gardena-smart-gateway-u-boot.dtsi
new file mode 100644
index 0000000..732dee6
--- /dev/null
+++ b/arch/arm/dts/at91sam9g25-gardena-smart-gateway-u-boot.dtsi
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+&dbgu {
+	u-boot,dm-pre-reloc;
+};
diff --git a/arch/arm/dts/at91sam9g25-gardena-smart-gateway.dts b/arch/arm/dts/at91sam9g25-gardena-smart-gateway.dts
new file mode 100644
index 0000000..e2f8d80
--- /dev/null
+++ b/arch/arm/dts/at91sam9g25-gardena-smart-gateway.dts
@@ -0,0 +1,120 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Device Tree file for the GARDENA smart Gateway (AT91SAM)
+ *
+ *  Copyright (C) 2012 Atmel,
+ *                2012 Nicolas Ferre <nicolas.ferre@atmel.com>
+ */
+
+/dts-v1/;
+
+#include "at91sam9g25.dtsi"
+
+/ {
+	model = "GARDENA smart Gateway (AT91SAM)";
+	compatible = "gardena,smart-gateway-at91sam", "atmel,at91sam9";
+
+	aliases {
+		serial0 = &dbgu;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory {
+		reg = <0x20000000 0x8000000>;
+	};
+
+	clocks {
+		slow_xtal {
+			clock-frequency = <32768>;
+		};
+
+		main_xtal {
+			clock-frequency = <12000000>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		power_blue {
+			label = "smartgw:power:blue";
+			gpios = <&pioC 21 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		power_green {
+			label = "smartgw:power:green";
+			gpios = <&pioC 20 GPIO_ACTIVE_HIGH>;
+			default-state = "on";
+		};
+
+		power_red {
+			label = "smartgw:power:red";
+			gpios = <&pioC 19 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		radio_blue {
+			label = "smartgw:radio:blue";
+			gpios = <&pioC 18 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		radio_green {
+			label = "smartgw:radio:green";
+			gpios = <&pioC 17 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		radio_red {
+			label = "smartgw:radio:red";
+			gpios = <&pioC 16 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		internet_blue {
+			label = "smartgw:internet:blue";
+			gpios = <&pioC 15 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		internet_green {
+			label = "smartgw:internet:green";
+			gpios = <&pioC 14 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		internet_red {
+			label = "smartgw:internet:red";
+			gpios = <&pioC 13 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+	};
+};
+
+&dbgu {
+	status = "okay";
+};
+
+&macb0 {
+	phy-mode = "rmii";
+	status = "okay";
+};
+
+&nand0 {
+	nand-bus-width = <8>;
+	nand-ecc-mode = "hw";
+	atmel,has-pmecc;	/* Enable PMECC */
+	atmel,pmecc-cap = <2>;
+	atmel,pmecc-sector-size = <512>;
+	nand-on-flash-bbt;
+	status = "okay";
+};
+
+&watchdog {
+	status = "okay";
+	timeout-sec = <16>;
+};
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index a6329dc..a089e94 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -147,6 +147,13 @@ config TARGET_AT91SAM9X5EK
 	select BOARD_LATE_INIT
 	select SUPPORT_SPL
 
+config TARGET_GARDENA_SMART_GATEWAY_AT91SAM
+	bool "GARDENA smart Gateway (AT91SAM)"
+	select AT91SAM9X5
+	select BOARD_EARLY_INIT_F
+	select BOARD_LATE_INIT
+	select SUPPORT_SPL
+
 config TARGET_SAMA5D2_PTC_EK
 	bool "SAMA5D2 PTC EK board"
 	select BOARD_EARLY_INIT_F
@@ -283,6 +290,7 @@ source "board/bluewater/snapper9260/Kconfig"
 source "board/calao/usb_a9263/Kconfig"
 source "board/egnite/ethernut5/Kconfig"
 source "board/esd/meesc/Kconfig"
+source "board/gardena/smart-gateway-at91sam/Kconfig"
 source "board/l+g/vinco/Kconfig"
 source "board/mini-box/picosam9g45/Kconfig"
 source "board/ronetix/pm9261/Kconfig"