mekotronics-r58x-4g: mainline u-boot v2026.01; mainline 6.19 kernel (edge)

- rockchip64-6.19: mainline kernel (edge/6.19):
  - most stuff works, incl 4G modem, NPU, RS-485, RS-232, HDMI-RX
  - except:
    - type-c (fusb302, I've no schematics nor will to reverse)
    - DisplayPort (I don't have test hardware)
    - Analog Audio (ditto)
- keep vendor u-boot for vendor branch
- mainline u-boot v2026.01:
  - same DT as edge kernel, save for NPU nodes
  - boot order: NVMe -> SATA -> USB -> eMMC -> Ethernet/PXE
  - stable MAC addresses for GMAC0/1 via DT aliases (confirm with logging patch)

config/boards/mekotronics-r58x-4g.csc

@@ -3,10 +3,94 @@ declare -g BOARD_NAME="Mekotronics R58X-4G"
 declare -g BOARD_VENDOR="mekotronics"
 declare -g BOARDFAMILY="rockchip-rk3588"
 declare -g BOARD_MAINTAINER=""
-declare -g KERNEL_TARGET="vendor"
+declare -g KERNEL_TARGET="edge,vendor"
-declare -g BOOTCONFIG="mekotronics_r58x-rk3588_defconfig"               # vendor u-boot; with NVMe and a DTS
+declare -g BOOT_FDT_FILE="rockchip/rk3588-blueberry-edge-v12-linux.dtb" # same name for mainline and vendor
-declare -g BOOT_FDT_FILE="rockchip/rk3588-blueberry-edge-v12-linux.dtb" # Specific to this board
+declare -g DISPLAY_MANAGER="wayland"
-declare -g UEFI_EDK2_BOARD_ID="r58x"                                    # This _only_ used for uefi-edk2-rk3588 extension
+declare -g ASOUND_STATE="asound.state.rk3588hd"
+declare -g BOOT_SOC="rk3588"
+declare -g IMAGE_PARTITION_TABLE="gpt"
+# Does not have a UEFI_EDK2_BOARD_ID
 
-# Source vendor-specific configuration
+if [[ "${BRANCH}" == "vendor" || "${BRANCH}" == "legacy" ]]; then
-source "${SRC}/config/sources/vendors/mekotronics/mekotronics-rk3588.conf.sh"
+	display_alert "$BOARD" "vendor/legacy configuration applied for $BOARD / $BRANCH" "info"
+	declare -g BOOTCONFIG="mekotronics_r58x-rk3588_defconfig" # vendor u-boot; with NVMe and a DTS
+	# Source shared vendor configuration; it does BOOT_SCENARIO="spl-blobs" & hciattach - common to all vendor-kernel Meko's
+	source "${SRC}/config/sources/vendors/mekotronics/mekotronics-rk3588.conf.sh"
+	return 0 # this returns early so below code is only for current/edge branches
+fi
+
+# For current/edge branches:
+display_alert "$BOARD" "applying mainline configuration for $BOARD / $BRANCH" "info"
+declare -g BOOT_SCENARIO="tpl-blob-atf-mainline" # Mainline ATF
+
+function post_family_config__mekor58x_4g_use_mainline_uboot() {
+	display_alert "$BOARD" "mainline u-boot overrides for $BOARD / $BRANCH" "info"
+
+	declare -g BOOTCONFIG="mekotronics-r58x-4g-rk3588_defconfig" # mainline
+	declare -g BOOTDELAY=1
+	declare -g BOOTSOURCE="https://github.com/u-boot/u-boot.git"
+	declare -g BOOTBRANCH="tag:v2026.01"
+	declare -g BOOTPATCHDIR="v2026.01"
+	declare -g BOOTDIR="u-boot-${BOARD}"
+
+	declare -g UBOOT_TARGET_MAP="BL31=bl31.elf ROCKCHIP_TPL=${RKBIN_DIR}/${DDR_BLOB};;u-boot-rockchip.bin"
+	unset uboot_custom_postprocess write_uboot_platform write_uboot_platform_mtd
+
+	function write_uboot_platform() {
+		dd "if=$1/u-boot-rockchip.bin" "of=$2" bs=32k seek=1 conv=notrunc status=none
+	}
+
+	declare -g PLYMOUTH="no" # Disable plymouth as that only causes more confusion
+}
+
+# "rockchip-common: boot NVMe, SATA, USB, then eMMC last before PXE"
+# include/configs/rockchip-common.h
+# On the meko r58-r58x_4g: mmc0 is eMMC; there is no SDcard reader
+# Enumerating usb is pretty slow so do it after nvme
+function pre_config_uboot_target__mekor58x_4g_patch_rockchip_common_boot_order() {
+	declare -a rockchip_uboot_targets=("nvme" "scsi" "usb" "mmc0" "pxe" "dhcp" "spi") # for future make-this-generic delight
+	display_alert "u-boot for ${BOARD}/${BRANCH}" "u-boot: adjust boot order to '${rockchip_uboot_targets[*]}'" "info"
+	sed -i -e "s/#define BOOT_TARGETS.*/#define BOOT_TARGETS \"${rockchip_uboot_targets[*]}\"/" include/configs/rockchip-common.h
+	regular_git diff -u include/configs/rockchip-common.h || true
+}
+
+function post_config_uboot_target__extra_configs_for_mekor58x_4g_mainline_environment_in_spi() {
+	display_alert "u-boot for ${BOARD}/${BRANCH}" "u-boot: enable board-specific configs" "info"
+	run_host_command_logged scripts/config --enable CONFIG_CMD_MISC
+
+	display_alert "u-boot for ${BOARD}/${BRANCH}" "u-boot: enable preboot & flash user LED in preboot" "info"
+	run_host_command_logged scripts/config --enable CONFIG_USE_PREBOOT
+	run_host_command_logged scripts/config --set-str CONFIG_PREBOOT "'led 4G on; sleep 0.1; led LAN on; sleep 0.1; led PWR on; sleep 0.1; led 4G off; sleep 0.1; led LAN off; sleep 0.1;'" # double quotes required due to run_host_command_logged's quirks
+
+	display_alert "u-boot for ${BOARD}/${BRANCH}" "u-boot: enable EFI debugging commands" "info"
+	run_host_command_logged scripts/config --enable CMD_EFIDEBUG
+	run_host_command_logged scripts/config --enable CMD_NVEDIT_EFI
+
+	display_alert "u-boot for ${BOARD}/${BRANCH}" "u-boot: enable more filesystems support" "info"
+	run_host_command_logged scripts/config --enable CONFIG_CMD_BTRFS
+
+	display_alert "u-boot for ${BOARD}/${BRANCH}" "u-boot: enable more compression support" "info"
+	run_host_command_logged scripts/config --enable CONFIG_LZO
+	run_host_command_logged scripts/config --enable CONFIG_BZIP2
+	run_host_command_logged scripts/config --enable CONFIG_ZSTD
+
+	display_alert "u-boot for ${BOARD}/${BRANCH}" "u-boot: enable gpio LED support" "info"
+	run_host_command_logged scripts/config --enable CONFIG_LED
+	run_host_command_logged scripts/config --enable CONFIG_LED_GPIO
+
+	display_alert "u-boot for ${BOARD}/${BRANCH}" "u-boot: enable networking cmds" "info"
+	run_host_command_logged scripts/config --enable CONFIG_CMD_NFS
+	run_host_command_logged scripts/config --enable CONFIG_CMD_WGET
+	run_host_command_logged scripts/config --enable CONFIG_CMD_DNS
+	run_host_command_logged scripts/config --enable CONFIG_PROT_TCP
+	run_host_command_logged scripts/config --enable CONFIG_PROT_TCP_SACK
+
+	# UMS, RockUSB, gadget stuff
+	display_alert "u-boot for ${BOARD}/${BRANCH}" "u-boot: enable UMS/RockUSB gadget" "info"
+	declare -a enable_configs=("CONFIG_CMD_USB_MASS_STORAGE" "CONFIG_USB_GADGET" "USB_GADGET_DOWNLOAD" "CONFIG_USB_FUNCTION_ROCKUSB" "CONFIG_USB_FUNCTION_ACM" "CONFIG_CMD_ROCKUSB" "CONFIG_CMD_USB_MASS_STORAGE")
+	for config in "${enable_configs[@]}"; do
+		run_host_command_logged scripts/config --enable "${config}"
+	done
+	# Auto-enabled by the above, force off...
+	run_host_command_logged scripts/config --disable USB_FUNCTION_FASTBOOT
+}

patch/u-boot/v2026.01/board_mekotronics-r58x-4g/1001-fdt_fixup_ethernet-add-logs.patch

@@ -0,0 +1,200 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Ricardo Pardini <ricardo@pardini.net>
+Date: Mon, 12 Jan 2026 18:26:25 +0100
+Subject: fdt_fixup_ethernet: add logs
+
+---
+ boot/fdt_support.c | 57 +++++++---
+ boot/image-fdt.c   | 25 ++++
+ 2 files changed, 67 insertions(+), 15 deletions(-)
+
+diff --git a/boot/fdt_support.c b/boot/fdt_support.c
+index 111111111111..222222222222 100644
+--- a/boot/fdt_support.c
++++ b/boot/fdt_support.c
+@@ -630,29 +630,34 @@ int fdt_fixup_memory(void *blob, u64 start, u64 size)
+ 	return fdt_fixup_memory_banks(blob, &start, &size, 1);
+ }
+ 
++#warning "Compiling fdt_fixup_ethernet() for MAC debugging."
+ void fdt_fixup_ethernet(void *fdt)
+ {
++	log_info("[fdt_fixup_ethernet] called\n");
+ 	int i = 0, j, prop;
+ 	char *tmp, *end;
+ 	char mac[16];
+ 	const char *path;
+ 	unsigned char mac_addr[ARP_HLEN];
+ 	int offset;
++	int total_aliases = 0, total_attempted = 0, total_skipped = 0, total_patched = 0;
+ #ifdef FDT_SEQ_MACADDR_FROM_ENV
+ 	int nodeoff;
+ 	const struct fdt_property *fdt_prop;
+ #endif
+ 
+-	if (fdt_path_offset(fdt, "/aliases") < 0)
++	int aliases_off = fdt_path_offset(fdt, "/aliases");
++	if (aliases_off < 0) {
++		log_info("[fdt_fixup_ethernet] /aliases node not found\n");
+ 		return;
++	}
+ 
+ 	/* Cycle through all aliases */
+ 	for (prop = 0; ; prop++) {
+ 		const char *name;
+ 
+ 		/* FDT might have been edited, recompute the offset */
+-		offset = fdt_first_property_offset(fdt,
+-			fdt_path_offset(fdt, "/aliases"));
++		offset = fdt_first_property_offset(fdt, aliases_off);
+ 		/* Select property number 'prop' */
+ 		for (j = 0; j < prop; j++)
+ 			offset = fdt_next_property_offset(fdt, offset);
+@@ -660,7 +665,10 @@ void fdt_fixup_ethernet(void *fdt)
+ 		if (offset < 0)
+ 			break;
+ 
++		total_aliases++;
+ 		path = fdt_getprop_by_offset(fdt, offset, &name, NULL);
++		log_info("[fdt_fixup_ethernet] alias #%d: name='%s', path='%s'\n", prop, name, path ? path : "<null>");
++
+ 		if (!strncmp(name, "ethernet", 8)) {
+ 			/* Treat plain "ethernet" same as "ethernet0". */
+ 			if (!strcmp(name, "ethernet")
+@@ -679,33 +687,52 @@ void fdt_fixup_ethernet(void *fdt)
+ 				else
+ 					sprintf(mac, "eth%daddr", i);
+ 			} else {
++				log_info("[fdt_fixup_ethernet] Skipping alias '%s' (invalid index)\n", name);
++				total_skipped++;
+ 				continue;
+ 			}
+ #ifdef FDT_SEQ_MACADDR_FROM_ENV
+ 			nodeoff = fdt_path_offset(fdt, path);
+-			fdt_prop = fdt_get_property(fdt, nodeoff, "status",
+-						    NULL);
+-			if (fdt_prop && !strcmp(fdt_prop->data, "disabled"))
++			fdt_prop = fdt_get_property(fdt, nodeoff, "status", NULL);
++			if (fdt_prop && !strcmp(fdt_prop->data, "disabled")) {
++				log_info("[fdt_fixup_ethernet] Node '%s' is disabled, skipping\n", path);
++				total_skipped++;
+ 				continue;
++			}
+ 			i++;
+ #endif
++			total_attempted++;
+ 			tmp = env_get(mac);
+-			if (!tmp)
++			log_info("[fdt_fixup_ethernet] env var for alias '%s' is '%s', value='%s'\n", name, mac, tmp ? tmp : "<not set>");
++			if (!tmp) {
++				log_info("[fdt_fixup_ethernet] env var '%s' not set, skipping\n", mac);
++				total_skipped++;
+ 				continue;
+-
++			}
++			int nodeoff = fdt_path_offset(fdt, path);
++			if (nodeoff < 0) {
++				log_info("[fdt_fixup_ethernet] Node path '%s' not found, skipping\n", path);
++				total_skipped++;
++				continue;
++			}
++			const struct fdt_property *status_prop = fdt_get_property(fdt, nodeoff, "status", NULL);
++			if (status_prop && strcmp((const char *)status_prop->data, "okay")) {
++				log_info("[fdt_fixup_ethernet] Node '%s' status is '%s', skipping\n", path, (const char *)status_prop->data);
++				total_skipped++;
++				continue;
++			}
+ 			for (j = 0; j < 6; j++) {
+-				mac_addr[j] = tmp ?
+-					      hextoul(tmp, &end) : 0;
++				mac_addr[j] = tmp ? hextoul(tmp, &end) : 0;
+ 				if (tmp)
+ 					tmp = (*end) ? end + 1 : end;
+ 			}
+-
+-			do_fixup_by_path(fdt, path, "mac-address",
+-					 &mac_addr, 6, 0);
+-			do_fixup_by_path(fdt, path, "local-mac-address",
+-					 &mac_addr, 6, 1);
++			log_info("[fdt_fixup_ethernet] Patching node '%s' (offset %d) with MAC %02x:%02x:%02x:%02x:%02x:%02x\n", path, nodeoff, mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]);
++			do_fixup_by_path(fdt, path, "mac-address", &mac_addr, 6, 0);
++			do_fixup_by_path(fdt, path, "local-mac-address", &mac_addr, 6, 1);
++			total_patched++;
+ 		}
+ 	}
++	log_info("[fdt_fixup_ethernet] SUMMARY: aliases found=%d, attempted=%d, skipped=%d, patched=%d\n", total_aliases, total_attempted, total_skipped, total_patched);
+ }
+ 
+ int fdt_record_loadable(void *blob, u32 index, const char *name,
+diff --git a/boot/image-fdt.c b/boot/image-fdt.c
+index 111111111111..222222222222 100644
+--- a/boot/image-fdt.c
++++ b/boot/image-fdt.c
+@@ -1,3 +1,4 @@
++#warning "Building image-fdt.c: fdt fixup call chain instrumented for MAC debugging."
+ // SPDX-License-Identifier: GPL-2.0+
+ /*
+  * Copyright (c) 2013, Google Inc.
+@@ -578,13 +579,31 @@ __weak int ft_verify_fdt(void *fdt)
+ 	return 1;
+ }
+ 
++#warning "Compiling arch_fixup_fdt() weak stub for MAC debugging."
+ __weak int arch_fixup_fdt(void *blob)
+ {
++	log_info("[arch_fixup_fdt] called (weak stub)\n");
+ 	return 0;
+ }
+ 
++#warning "Compiling ft_board_setup() weak stub for MAC debugging."
++__weak int ft_board_setup(void *blob, struct bd_info *bd)
++{
++	log_info("[ft_board_setup] called (weak stub)\n");
++	return 0;
++}
++
++#warning "Compiling ft_system_setup() weak stub for MAC debugging."
++__weak int ft_system_setup(void *blob, struct bd_info *bd)
++{
++	log_info("[ft_system_setup] called (weak stub)\n");
++	return 0;
++}
++
++#warning "Compiling image_setup_libfdt()"
+ int image_setup_libfdt(struct bootm_headers *images, void *blob, bool lmb)
+ {
++	log_info("[image_setup_libfdt] called\n");
+ 	ulong *initrd_start = &images->initrd_start;
+ 	ulong *initrd_end = &images->initrd_end;
+ 	bool skip_board_fixup = false;
+@@ -632,6 +651,8 @@ int image_setup_libfdt(struct bootm_headers *images, void *blob, bool lmb)
+ 					strlen(images->fit_uname_cfg) + 1, 1);
+ 
+ 	/* Update ethernet nodes */
++	#warning "Compiling fdt_fixup_ethernet() call site in image_setup_libfdt()"
++	log_info("[image_setup_libfdt] calling fdt_fixup_ethernet\n");
+ 	fdt_fixup_ethernet(blob);
+ #if IS_ENABLED(CONFIG_CMD_PSTORE)
+ 	/* Append PStore configuration */
+@@ -645,6 +666,8 @@ int image_setup_libfdt(struct bootm_headers *images, void *blob, bool lmb)
+ 	}
+ 
+ 	if (IS_ENABLED(CONFIG_OF_BOARD_SETUP) && !skip_board_fixup) {
++		#warning "Compiling ft_board_setup() call site in image_setup_libfdt()"
++		log_info("[image_setup_libfdt] calling ft_board_setup\n");
+ 		fdt_ret = ft_board_setup(blob, gd->bd);
+ 		if (fdt_ret) {
+ 			printf("ERROR: board-specific fdt fixup failed: %s\n",
+@@ -652,7 +675,9 @@ int image_setup_libfdt(struct bootm_headers *images, void *blob, bool lmb)
+ 			goto err;
+ 		}
+ 	}
++	#warning "Compiling ft_system_setup() call site in image_setup_libfdt()"
+ 	if (IS_ENABLED(CONFIG_OF_SYSTEM_SETUP)) {
++		log_info("[image_setup_libfdt] calling ft_system_setup\n");
+ 		fdt_ret = ft_system_setup(blob, gd->bd);
+ 		if (fdt_ret) {
+ 			printf("ERROR: system-specific fdt fixup failed: %s\n",
+-- 
+Armbian
+

patch/u-boot/v2026.01/defconfig/mekotronics-r58x-4g-rk3588_defconfig

@@ -0,0 +1,96 @@
+CONFIG_ARM=y
+CONFIG_SKIP_LOWLEVEL_INIT=y
+CONFIG_SYS_HAS_NONCACHED_MEMORY=y
+CONFIG_COUNTER_FREQUENCY=24000000
+CONFIG_ARCH_ROCKCHIP=y
+CONFIG_DEFAULT_DEVICE_TREE="rockchip/rk3588-blueberry-edge-v12-linux"
+CONFIG_ROCKCHIP_RK3588=y
+CONFIG_SPL_SERIAL=y
+CONFIG_TARGET_ROCK5B_RK3588=y
+CONFIG_SYS_LOAD_ADDR=0xc00800
+CONFIG_DEBUG_UART_BASE=0xFEB50000
+CONFIG_DEBUG_UART_CLOCK=24000000
+CONFIG_PCI=y
+CONFIG_DEBUG_UART=y
+CONFIG_AHCI=y
+CONFIG_FIT=y
+CONFIG_FIT_VERBOSE=y
+CONFIG_SPL_FIT_SIGNATURE=y
+CONFIG_SPL_LOAD_FIT=y
+CONFIG_LEGACY_IMAGE_FORMAT=y
+CONFIG_OF_BOARD_SETUP=y
+CONFIG_DEFAULT_FDT_FILE="rockchip/rk3588-blueberry-edge-v12-linux.dtb"
+# CONFIG_DISPLAY_CPUINFO is not set
+CONFIG_DISPLAY_BOARDINFO_LATE=y
+CONFIG_SPL_MAX_SIZE=0x40000
+# CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
+CONFIG_SPL_ATF=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_PCI=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_ROCKUSB=y
+CONFIG_CMD_USB_MASS_STORAGE=y
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_REGULATOR=y
+# CONFIG_SPL_DOS_PARTITION is not set
+CONFIG_SPL_OF_CONTROL=y
+CONFIG_OF_LIVE=y
+CONFIG_OF_SPL_REMOVE_PROPS="clock-names interrupt-parent assigned-clocks assigned-clock-rates assigned-clock-parents"
+CONFIG_SPL_DM_SEQ_ALIAS=y
+CONFIG_SPL_REGMAP=y
+CONFIG_SPL_SYSCON=y
+CONFIG_AHCI_PCI=y
+CONFIG_DWC_AHCI=y
+CONFIG_SPL_CLK=y
+# CONFIG_USB_FUNCTION_FASTBOOT is not set
+CONFIG_ROCKCHIP_GPIO=y
+CONFIG_SYS_I2C_ROCKCHIP=y
+CONFIG_LED=y
+CONFIG_LED_GPIO=y
+CONFIG_MISC=y
+CONFIG_SUPPORT_EMMC_RPMB=y
+CONFIG_MMC_DW=y
+CONFIG_MMC_DW_ROCKCHIP=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_SDMA=y
+CONFIG_MMC_SDHCI_ROCKCHIP=y
+CONFIG_PHY_REALTEK=y
+CONFIG_DWC_ETH_QOS=y
+CONFIG_DWC_ETH_QOS_ROCKCHIP=y
+CONFIG_NVME_PCI=y
+CONFIG_PCIE_DW_ROCKCHIP=y
+CONFIG_PHY_ROCKCHIP_INNO_USB2=y
+CONFIG_PHY_ROCKCHIP_NANENG_COMBOPHY=y
+CONFIG_PHY_ROCKCHIP_USBDP=y
+CONFIG_SPL_PINCTRL=y
+CONFIG_PWM_ROCKCHIP=y
+CONFIG_SPL_RAM=y
+CONFIG_SCSI=y
+CONFIG_BAUDRATE=1500000
+CONFIG_DEBUG_UART_SHIFT=2
+CONFIG_SYS_NS16550_MEM32=y
+CONFIG_SYSRESET=y
+CONFIG_USB=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_GENERIC=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_GENERIC=y
+CONFIG_USB_DWC3=y
+CONFIG_USB_DWC3_GENERIC=y
+CONFIG_SPL_USB_DWC3_GENERIC=y
+CONFIG_USB_HOST_ETHER=y
+CONFIG_USB_ETHER_ASIX=y
+CONFIG_USB_ETHER_ASIX88179=y
+CONFIG_USB_ETHER_LAN75XX=y
+CONFIG_USB_ETHER_LAN78XX=y
+CONFIG_USB_ETHER_MCS7830=y
+CONFIG_USB_ETHER_RTL8152=y
+CONFIG_USB_ETHER_SMSC95XX=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_USB_FUNCTION_ROCKUSB=y
+CONFIG_ERRNO_STR=y

patch/u-boot/v2026.01/dt_uboot/rk3588-blueberry-edge-v12-linux.dtsi

@@ -0,0 +1 @@
+#include "rk3588-generic-u-boot.dtsi"