[PATCH v2] ARM: dts: bcm53016: Add devicetree for D-Link DWL-8610AP

[Linus Walleij]

This adds a device tree for the BCM53016-based D-Link DWL-8610AP
access point wireless router.

The TRX-format partitions had to be named "firmware" due to
an OpenWrt patch that only accepts parting such nodes if they
are named "firmware".

Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
---
ChangeLog v1->v2:
- Relicense as dual GPL+MIT
- Parse TRX partitions in the NAND flash instead of just fixed
  partitions, use fixed partitions to chunk up the main
  parts of the flash then add trx compatibles to those
  nodes that have TRX headers.
- Use 5 bit ECC like the device does.
---
 arch/arm/boot/dts/Makefile                    |   1 +
 .../boot/dts/bcm53016-dlink-dwl-8610ap.dts    | 131 ++++++++++++++++++
 2 files changed, 132 insertions(+)
 create mode 100644 arch/arm/boot/dts/bcm53016-dlink-dwl-8610ap.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 6aa7dc4db2fc..1cdeb5f88e4e 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -139,6 +139,7 @@ dtb-$(CONFIG_ARCH_BCM_5301X) += \
 	bcm47094-netgear-r8500.dtb \
 	bcm47094-phicomm-k3.dtb \
 	bcm53015-meraki-mr26.dtb \
+	bcm53016-dlink-dwl-8610ap.dtb \
 	bcm53016-meraki-mr32.dtb \
 	bcm94708.dtb \
 	bcm94709.dtb \
diff --git a/arch/arm/boot/dts/bcm53016-dlink-dwl-8610ap.dts b/arch/arm/boot/dts/bcm53016-dlink-dwl-8610ap.dts
new file mode 100644
index 000000000000..ebf2a36f71ae
--- /dev/null
+++ b/arch/arm/boot/dts/bcm53016-dlink-dwl-8610ap.dts
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/dts-v1/;
+
+#include "bcm4709.dtsi"
+#include "bcm5301x-nand-cs0-bch8.dtsi"
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	model = "D-Link DWL-8610AP Wireless Access Point";
+	compatible = "dlink,dwl-8610ap", "brcm,bcm53016", "brcm,bcm4708";
+
+	memory at 0 {
+		device_type = "memory";
+		/* 512 MB RAM in 2 x Macronix D9PSH chips */
+		reg = <0x00000000 0x08000000>,
+		      <0x88000000 0x08000000>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		power {
+			function = LED_FUNCTION_POWER;
+			color = <LED_COLOR_ID_GREEN>;
+			gpios = <&chipcommon 0 GPIO_ACTIVE_LOW>;
+			default-state = "on";
+		};
+
+		diag {
+			/* Actually "diag" unclear what this means */
+			function = LED_FUNCTION_INDICATOR;
+			color = <LED_COLOR_ID_RED>;
+			gpios = <&chipcommon 1 GPIO_ACTIVE_LOW>;
+			default-state = "on";
+			linux,default-trigger = "heartbeat";
+		};
+
+		wlan-2g {
+			function = LED_FUNCTION_WLAN;
+			color = <LED_COLOR_ID_GREEN>;
+			gpios = <&chipcommon 5 GPIO_ACTIVE_LOW>;
+		};
+
+		wlan-5g {
+			function = LED_FUNCTION_WLAN;
+			color = <LED_COLOR_ID_GREEN>;
+			gpios = <&chipcommon 8 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+
+		button-reset {
+			debounce-interval = <100>;
+			wakeup-source;
+			linux,code = <KEY_RESTART>;
+			label = "reset";
+			/* This GPIO is actually stored in NVRAM, but it's not gonna change */
+			gpios = <&chipcommon 4 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	/*
+	 * Flash memory at 0x1e000000-0x1fffffff
+	 * Macronix 32 64KB blocks; total size 2MB, same that can be
+	 * found attached to the spi_nor SPI controller.
+	 */
+	nvram at 1e080000 {
+		compatible = "brcm,nvram";
+		reg = <0x1e080000 0x00020000>;
+
+		et0macaddr: et0macaddr {
+		};
+
+		et1macaddr: et1macaddr {
+		};
+	};
+};
+
+&gmac0 {
+	nvmem-cells = <&et0macaddr>;
+	nvmem-cell-names = "mac-address";
+};
+
+&gmac1 {
+	nvmem-cells = <&et1macaddr>;
+	nvmem-cell-names = "mac-address";
+};
+
+&spi_nor {
+	/* Serial SPI NOR Flash MX 25L1606E */
+	status = "okay";
+};
+
+&nandcs {
+	/*
+	 * Spansion S34ML01G100TFI00 128 MB NAND Flash memory
+	 *
+	 * This ECC is a bit unorthodox but it is what the stock firmware
+	 * is using, so to be able to mount the original partitions
+	 * this is necessary.
+	 */
+	nand-ecc-strength = <5>;
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		/* This is named nflash1.trx in CFE */
+		trx at 0 {
+			label = "firmware";
+			reg = <0x00000000 0x02800000>;
+			compatible = "brcm,trx";
+		};
+
+		/* This is named nflash1.trx2 in CFE */
+		trx2 at 2800000 {
+			label = "firmware";
+			reg = <0x02800000 0x02800000>;
+			compatible = "brcm,trx";
+		};
+
+		/* This is named nflash1.rwfs in CFE */
+		free at 5000000 {
+			label = "free";
+			reg = <0x05000000 0x03000000>;
+		};
+	};
+};
-- 
2.34.1