sunxi64: longanpi-3h u-boot v2024.10 -> v2026.07 (H618 LPDDR4)

Was self-pinned to v2024.10 with a board patchset that added the DT + defconfig
and an eMMC-boot tweak. In v2026.07 the DT (sun50i-h618-longanpi-3h +
longan-module-3h.dtsi, including the eMMC mmc2 node, already without
mmc-hs400-1_8v) is fully upstream, so only the defconfig is carried board-scoped.

defconfig forward-ported with v2026.07 adaptations: DRAM Kconfig renamed
DRAM_SUN50I_H616_* -> DRAM_SUNXI_* (identical H618 LPDDR4 values to the validated
cherryba-m1), allwinner/ DT prefix for OF_UPSTREAM, +MMC_SUNXI_SLOT_EXTRA=2 /
SUPPORT_EMMC_BOOT. Rides the sunxi64 family default now. Drop the v2024.10 self-pin
and its isolated BOOTDIR.

Signed-off-by: Igor Pecovnik <igor@armbian.com>

Author: igorpecovnik

config/boards/longanpi-3h.csc

@@ -5,9 +5,10 @@ BOARDFAMILY="sun50iw9"
 BOARD_MAINTAINER=""
 INTRODUCED="2023"
 BOOTCONFIG="longanpi_3h_defconfig"
-BOOTBRANCH="tag:v2024.10"
-BOOTPATCHDIR="v2024.10"
-BOOTDIR="u-boot-${BOARD}"
+# u-boot rides the sunxi64 family default (v2026.07-rc4 / v2026.07-sunxi64).
+# DT (sun50i-h618-longanpi-3h + longan-module-3h.dtsi, incl. eMMC) is upstream;
+# the defconfig is carried board-scoped in v2026.07-sunxi64/board_longanpi-3h.
+# Was self-pinned to v2024.10.
 BOOT_LOGO="desktop"
 OVERLAY_PREFIX="sun50i-h616"
 KERNEL_TARGET="current,edge"

patch/u-boot/v2026.07-sunxi64/board_longanpi-3h/0001-add-longanpi-3h-defconfig.patch

@@ -0,0 +1,54 @@
+From: Armbian
+Subject: [PATCH] longanpi-3h: add defconfig for v2026.07 (H618 LPDDR4)
+
+Forward-ported from the v2024.10 board patchset (0006/0007). The DT
+(sun50i-h618-longanpi-3h + longan-module-3h.dtsi, including the eMMC mmc2 node)
+is now upstream in v2026.07 and already drops mmc-hs400-1_8v, so only the
+defconfig is carried here.
+
+Adaptations for v2026.07:
+- DRAM Kconfig renamed DRAM_SUN50I_H616_* -> DRAM_SUNXI_* (same values as the
+  already-validated cherryba-m1; identical H618 LPDDR4 tuning).
+- CONFIG_DEFAULT_DEVICE_TREE gains the allwinner/ prefix (OF_UPSTREAM).
+- Added MMC_SUNXI_SLOT_EXTRA=2 + SUPPORT_EMMC_BOOT=y for the onboard eMMC
+  (matches cherryba-m1).
+
+SD boot is the primary path; if eMMC boot proves flaky on hardware, revisit the
+old sdc_no==2 f_max=20MHz reduction (the family already carries the generic
+mmc 20ms stabilization delay).
+
+--- /dev/null
++++ b/configs/longanpi_3h_defconfig
+@@ -0,0 +1,32 @@
++CONFIG_ARM=y
++CONFIG_ARCH_SUNXI=y
++CONFIG_DEFAULT_DEVICE_TREE="allwinner/sun50i-h618-longanpi-3h"
++CONFIG_SPL=y
++CONFIG_DRAM_SUNXI_DX_ODT=0x07070707
++CONFIG_DRAM_SUNXI_DX_DRI=0x0e0e0e0e
++CONFIG_DRAM_SUNXI_CA_DRI=0x0e0e
++CONFIG_DRAM_SUNXI_ODT_EN=0xaaaaeeee
++CONFIG_DRAM_SUNXI_TPR6=0x48808080
++CONFIG_DRAM_SUNXI_TPR10=0x402f6663
++CONFIG_DRAM_SUNXI_TPR11=0x26262524
++CONFIG_DRAM_SUNXI_TPR12=0x100f100f
++CONFIG_MACH_SUN50I_H616=y
++CONFIG_SUNXI_DRAM_H616_LPDDR4=y
++CONFIG_DRAM_CLK=792
++CONFIG_MMC_SUNXI_SLOT_EXTRA=2
++CONFIG_SUPPORT_EMMC_BOOT=y
++CONFIG_R_I2C_ENABLE=y
++CONFIG_SPL_SPI_SUNXI=y
++# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
++CONFIG_SPL_I2C=y
++CONFIG_SPL_SYS_I2C_LEGACY=y
++CONFIG_SYS_I2C_MVTWSI=y
++CONFIG_SYS_I2C_SLAVE=0x7f
++CONFIG_SYS_I2C_SPEED=400000
++CONFIG_MTD=y
++CONFIG_SPI_FLASH_ZBIT=y
++CONFIG_AXP313_POWER=y
++CONFIG_SPI=y
++CONFIG_USB_EHCI_HCD=y
++CONFIG_USB_OHCI_HCD=y
++CONFIG_USB_MUSB_GADGET=y