[PATCH 5/8] dts: k1: switch BPI-F3 build to upstream DT

[Guodong Xu]

Adopt the kernel device tree directly from
dts/upstream/src/riscv/spacemit/k1-bananapi-f3.dts instead of carrying
a forked copy under arch/riscv/dts/.

Carry U-Boot-only deltas in k1-bananapi-f3-u-boot.dtsi, in particular
extra parent clocks on &syscon_mpmu and &syscon_apbc. The kernel CCF
registers these parents programmatically inside the syscon driver,
but U-Boot's per-syscon probes look them up by clk_get_by_index() for
inter-controller ordering, so they must appear in DT.

Signed-off-by: Guodong Xu <guodong at riscstar.com>
---
 arch/riscv/dts/Makefile                   |  1 -
 arch/riscv/dts/k1-bananapi-f3-u-boot.dtsi | 30 ++++++++++++++++++++++++++++++
 configs/bananapi-f3_defconfig             |  3 ++-
 3 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/arch/riscv/dts/Makefile b/arch/riscv/dts/Makefile
index 8e591cb7aa9..71c5c13d221 100644
--- a/arch/riscv/dts/Makefile
+++ b/arch/riscv/dts/Makefile
@@ -2,7 +2,6 @@
 
 dtb-$(CONFIG_TARGET_ANDES_AE350) += ae350_32.dtb ae350_64.dtb
 dtb-$(CONFIG_TARGET_ANDES_VOYAGER) += qilai-voyager.dtb
-dtb-$(CONFIG_TARGET_BANANAPI_F3) += k1-bananapi-f3.dtb
 dtb-$(CONFIG_TARGET_K230_CANMV) += k230-canmv.dtb
 dtb-$(CONFIG_TARGET_MICROCHIP_ICICLE) += mpfs-icicle-kit.dtb
 dtb-$(CONFIG_TARGET_MILKV_DUO) += cv1800b-milkv-duo.dtb
diff --git a/arch/riscv/dts/k1-bananapi-f3-u-boot.dtsi b/arch/riscv/dts/k1-bananapi-f3-u-boot.dtsi
new file mode 100644
index 00000000000..9e1925eb68e
--- /dev/null
+++ b/arch/riscv/dts/k1-bananapi-f3-u-boot.dtsi
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Copyright (C) 2026 RISCstar Ltd.
+ */
+
+#include <dt-bindings/clock/spacemit,k1-syscon.h>
+#include "binman.dtsi"
+
+/ {
+	memory at 0 {
+		device_type = "memory";
+		reg = <0x00000000 0x00000000 0x00000000 0x80000000>;
+	};
+};
+
+&syscon_mpmu {
+	clocks = <&osc_32k>, <&vctcxo_1m>, <&vctcxo_3m>, <&vctcxo_24m>,
+		 <&pll CLK_PLL1_D4>;
+	clock-names = "osc", "vctcxo_1m", "vctcxo_3m", "vctcxo_24m",
+		      "pll1_d4";
+};
+
+&syscon_apbc {
+	clocks = <&osc_32k>, <&vctcxo_1m>, <&vctcxo_3m>, <&vctcxo_24m>,
+		 <&pll CLK_PLL1_D4>,
+		 <&syscon_mpmu CLK_PLL1_31P5>,
+		 <&syscon_apmu CLK_PMUA_ACLK>;
+	clock-names = "osc", "vctcxo_1m", "vctcxo_3m", "vctcxo_24m",
+		      "pll1_d4", "pll1_d78_31p5", "pmua_aclk";
+};
diff --git a/configs/bananapi-f3_defconfig b/configs/bananapi-f3_defconfig
index 9f9424adc9f..b9a2ee19f53 100644
--- a/configs/bananapi-f3_defconfig
+++ b/configs/bananapi-f3_defconfig
@@ -3,7 +3,7 @@ CONFIG_SYS_MALLOC_LEN=0x1000000
 CONFIG_NR_DRAM_BANKS=2
 CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
 CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x1000000
-CONFIG_DEFAULT_DEVICE_TREE="k1-bananapi-f3"
+CONFIG_DEFAULT_DEVICE_TREE="spacemit/k1-bananapi-f3"
 CONFIG_SYS_BOOTM_LEN=0xa000000
 CONFIG_SYS_LOAD_ADDR=0x200000
 CONFIG_TARGET_BANANAPI_F3=y
@@ -16,6 +16,7 @@ CONFIG_SYS_CBSIZE=256
 CONFIG_SYS_PBSIZE=276
 # CONFIG_BOARD_INIT is not set
 CONFIG_HUSH_PARSER=y
+CONFIG_OF_UPSTREAM=y
 CONFIG_ENV_OVERWRITE=y
 CONFIG_CLK_SPACEMIT=y
 CONFIG_CLK_SPACEMIT_K1=y

-- 
2.43.0