84 files changed, 319 insertions, 75 deletions

diff --git a/target/arc/kernel/synopsys-hsdk b/target/arc/kernel/synopsys-hsdk
index 55ae3ccb6..a4e93f109 100644
--- a/target/arc/kernel/synopsys-hsdk
+++ b/target/arc/kernel/synopsys-hsdk
@@ -9,3 +9,9 @@ CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS=y
 CONFIG_ARC_HAS_LL64=y
 CONFIG_ARC_HAS_DIV_REM=y
 CONFIG_ARC_HAS_ACCL_REGS=y
+CONFIG_ARC_CACHE=y
+CONFIG_ARC_CACHE_LINE_SHIFT=6
+CONFIG_ARC_HAS_ICACHE=y
+CONFIG_ARC_HAS_DCACHE=y
+CONFIG_ARC_CACHE_PAGES=y
+
diff --git a/target/arc/uclibc-ng.config b/target/arc/uclibc-ng.config
index 2842123a9..083e6489d 100644
--- a/target/arc/uclibc-ng.config
+++ b/target/arc/uclibc-ng.config
@@ -1,6 +1,6 @@
 #
 # Automatically generated file; DO NOT EDIT.
-# uClibc-ng 1.0.45 C Library Configuration
+# uClibc-ng 1.0.52 C Library Configuration
 #
 # TARGET_aarch64 is not set
 # TARGET_alpha is not set
@@ -61,6 +61,7 @@ UCLIBC_HAS_FLOATS=y
 UCLIBC_HAS_FPU=y
 DO_C99_MATH=y
 DO_XSI_MATH=y
+UCLIBC_HAS_FENV=y
 UCLIBC_HAS_LONG_DOUBLE_MATH=y
 KERNEL_HEADERS=""
 HAVE_DOT_CONFIG=y
diff --git a/target/arm/Makefile b/target/arm/Makefile
index 9ca6969a1..227cc97ca 100644
--- a/target/arm/Makefile
+++ b/target/arm/Makefile
@@ -129,10 +129,6 @@ ifeq ($(ADK_TARGET_FS),nfsroot)
 targethelp:
 	@echo 'The kernel file is: $(FW_DIR)/${TARGET_KERNEL}'
 	@echo "The RootFS tarball is: $(FW_DIR)/$(ROOTFSUSERTARBALL)"
-ifeq ($(ADK_TARGET_SYSTEM_LINKSYS_NSLU2),y)
-	@echo "Use following in RedBoot bootloader:"
-	@echo "RedBoot> ip_address -l <localip> -h <serverip>; load -r -v -b 0x01d00000 ${TARGET_KERNEL}; exec 0x01d00000"
-endif
 endif
 ifeq ($(ADK_TARGET_FS),squashfs)
 targethelp:
@@ -205,6 +201,9 @@ endif
 ifeq ($(ADK_TARGET_SYSTEM_PCDUINO_3B),y)
 VENDOR:=allwinner/
 endif
+ifeq ($(ADK_TARGET_SYSTEM_LINKSYS_NSLU2),y)
+VENDOR:=intel/ixp/
+endif
 endif
 
 dtb-install:
@@ -272,6 +271,9 @@ endif
 ifeq ($(ADK_TARGET_SYSTEM_ST_STM32F746G),y)
 	${KERNEL_MAKE} $(VENDOR)stm32f746-disco.dtb $(MAKE_TRACE)
 endif
+ifeq ($(ADK_TARGET_SYSTEM_LINKSYS_NSLU2),y)
+	${KERNEL_MAKE} $(VENDOR)intel-ixp42x-linksys-nslu2.dtb $(MAKE_TRACE)
+endif
 	for x in $(LINUX_DIR)/arch/arm/boot/dts/$(VENDOR)*.dtb; do \
 		[[ -e "$$x" ]] && cp $(LINUX_DIR)/arch/arm/boot/dts/$(VENDOR)*.dtb $(FW_DIR); \
 		break; \
@@ -294,7 +296,7 @@ ifeq (${ADK_TARGET_FS},genimage)
 imageinstall: dtb-install $(FW_DIR)/$(GENIMAGE) targethelp
 endif
 ifeq ($(ADK_TARGET_FS),nfsroot)
-imageinstall: kernel-install $(FW_DIR)/$(ROOTFSUSERTARBALL) targethelp
+imageinstall: kernel-install dtb-install $(FW_DIR)/$(ROOTFSUSERTARBALL) targethelp
 endif
 ifeq ($(ADK_TARGET_FS),squashfs)
 imageinstall: $(BUILD_DIR)/root.squashfs kernel-install dtb-install targethelp
diff --git a/target/arm/kernel/linksys-nslu2 b/target/arm/kernel/linksys-nslu2
index a0a941721..924970b7c 100644
--- a/target/arm/kernel/linksys-nslu2
+++ b/target/arm/kernel/linksys-nslu2
@@ -1,4 +1,7 @@
 CONFIG_ARM=y
+CONFIG_ARCH_MULTIPLATFORM=y
+CONFIG_ARCH_MULTI_V5=y
+CONFIG_ARCH_MULTI_V4_V5=y
 CONFIG_ARCH_IXDP425=y
 CONFIG_ARCH_IXDP4XX=y
 CONFIG_ARCH_IXP4XX=y
@@ -7,6 +10,38 @@ CONFIG_ATAGS=y
 CONFIG_CPU_XSCALE=y
 CONFIG_IXP4XX_NPE=y
 CONFIG_IXP4XX_QMGR=y
-CONFIG_IXP4XX_WATCHDOG=y
 CONFIG_MACH_NSLU2=y
 CONFIG_FPE_NWFPE=y
+CONFIG_ARM_APPENDED_DTB=y
+CONFIG_ARM_THUMB=y
+CONFIG_KUSER_HELPERS=y
+
+CONFIG_FW_LOADER=y
+CONFIG_FW_LOADER_USER_HELPER=y
+CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
+CONFIG_REGMAP=y
+CONFIG_REGMAP_MMIO=y
+CONFIG_INTEL_IXP4XX_EB=y
+CONFIG_MTD=y
+CONFIG_MTD_OF_PARTS=y
+CONFIG_MTD_REDBOOT_PARTS=y
+CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-1
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+CONFIG_MTD_CFI=y
+CONFIG_MTD_GEN_PROBE=y
+CONFIG_MTD_CFI_ADV_OPTIONS=y
+CONFIG_MTD_CFI_NOSWAP=y
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+CONFIG_MTD_OTP=y
+CONFIG_MTD_CFI_INTELEXT=y
+CONFIG_MTD_CFI_AMDSTD=y
+CONFIG_MTD_CFI_UTIL=y
+CONFIG_MTD_COMPLEX_MAPPINGS=y
+CONFIG_MTD_PHYSMAP=y
+CONFIG_MTD_PHYSMAP_OF=y
+CONFIG_MTD_PHYSMAP_IXP4XX=y
diff --git a/target/arm/systems/linksys-nslu2 b/target/arm/systems/linksys-nslu2
index 72f55eadd..18333a17c 100644
--- a/target/arm/systems/linksys-nslu2
+++ b/target/arm/systems/linksys-nslu2
@@ -4,15 +4,17 @@ config ADK_TARGET_SYSTEM_LINKSYS_NSLU2
 	select ADK_TARGET_BIG_ENDIAN
 	select ADK_TARGET_CPU_ARM_XSCALE
 	select ADK_TARGET_WITH_USB
-	select ADK_TARGET_WITH_PCI
 	select ADK_TARGET_WITH_SERIAL
 	select ADK_TARGET_WITH_NET
 	select ADK_TARGET_WITH_NETDEVICE
-	select ADK_TARGET_WITH_BLOCK
 	select ADK_TARGET_WITH_I2C
+	select ADK_TARGET_WITH_MTD
+	select ADK_TARGET_WITH_PCI
 	select ADK_TARGET_KERNEL_ZIMAGE
 	select ADK_TARGET_KERNEL_WITH_COMPRESSION
 	select ADK_PACKAGE_IXP4XX_MICROCODE
+	select ADK_PACKAGE_APEX
+	select ADK_HOST_BUILD_UPSLUG2
 	help
 	  Linksys NSLU2
 
diff --git a/target/config/Config.in.compiler b/target/config/Config.in.compiler
index 93554a715..57dcf54e3 100644
--- a/target/config/Config.in.compiler
+++ b/target/config/Config.in.compiler
@@ -30,6 +30,12 @@ config ADK_TOOLCHAIN_GCC_GIT
 	depends on !ADK_TARGET_ARCH_METAG
 	depends on !ADK_TARGET_ARCH_NDS32
 
+config ADK_TOOLCHAIN_GCC_15
+	bool "15.1.0"
+	depends on !ADK_TARGET_ARCH_AVR32
+	depends on !ADK_TARGET_ARCH_CRIS
+	depends on !ADK_TARGET_ARCH_METAG
+
 config ADK_TOOLCHAIN_GCC_14
 	bool "14.2.0"
 	depends on !ADK_TARGET_ARCH_AVR32
diff --git a/target/config/Config.in.cpu b/target/config/Config.in.cpu
index 7ea9829a3..e0a91b003 100644
--- a/target/config/Config.in.cpu
+++ b/target/config/Config.in.cpu
@@ -93,6 +93,7 @@ config ADK_TARGET_CPU_ARC_ARCHS
 	select ADK_TARGET_SUPPORTS_NPTL
 	select ADK_TARGET_SUPPORTS_LT
 	select ADK_TARGET_WITH_MMU
+	select ADK_TARGET_CPU_WITH_FPU
 	depends on ADK_TARGET_ARCH_ARC
 
 config ADK_TARGET_CPU_ARC_ARC32
@@ -789,6 +790,7 @@ config ADK_TARGET_CPU_CF_5475
 	select ADK_TARGET_SUPPORTS_LT
 	select ADK_TARGET_CPU_CF
 	select ADK_TARGET_WITH_MMU
+	select ADK_TARGET_CPU_WITH_FPU
 	depends on ADK_TARGET_ARCH_M68K
 
 config ADK_TARGET_CPU_CF_54418
@@ -1058,6 +1060,7 @@ config ADK_TARGET_CPU_OR1K
 	select ADK_TARGET_SUPPORTS_LT
 	select ADK_TARGET_SUPPORTS_NPTL
 	select ADK_TARGET_WITH_MMU
+	select ADK_TARGET_CPU_WITH_FPU
 	depends on ADK_TARGET_ARCH_OR1K
 
 # ppc32
@@ -1204,6 +1207,14 @@ config ADK_TARGET_CPU_PPC64_POWERPC64
 	depends on ADK_TARGET_BIG_ENDIAN
 
 # riscv
+config ADK_TARGET_CPU_RISCV32_RV32IMADC
+	bool "rv32imadc"
+	select ADK_TARGET_SUPPORTS_THREADS
+	select ADK_TARGET_SUPPORTS_NPTL if ADK_TARGET_WITH_MMU
+	select ADK_TARGET_SUPPORTS_LT
+	select ADK_TARGET_ABI_ILP32D
+	depends on ADK_TARGET_ARCH_RISCV32
+
 config ADK_TARGET_CPU_RISCV32_RV32IMAC
 	bool "rv32imac"
 	select ADK_TARGET_SUPPORTS_THREADS
@@ -1228,14 +1239,6 @@ config ADK_TARGET_CPU_RISCV32_RV32IMAFC
 	select ADK_TARGET_ABI_ILP32F
 	depends on ADK_TARGET_ARCH_RISCV32
 
-config ADK_TARGET_CPU_RISCV32_RV32IMADC
-	bool "rv32imadc"
-	select ADK_TARGET_SUPPORTS_THREADS
-	select ADK_TARGET_SUPPORTS_NPTL if ADK_TARGET_WITH_MMU
-	select ADK_TARGET_SUPPORTS_LT
-	select ADK_TARGET_ABI_ILP32D
-	depends on ADK_TARGET_ARCH_RISCV32
-
 config ADK_TARGET_CPU_RISCV32_RV32IMAFDC
 	bool "rv32imafdc"
 	select ADK_TARGET_SUPPORTS_THREADS if ADK_TARGET_WITH_MMU
@@ -1243,6 +1246,14 @@ config ADK_TARGET_CPU_RISCV32_RV32IMAFDC
 	select ADK_TARGET_SUPPORTS_LT if ADK_TARGET_WITH_MMU
 	depends on ADK_TARGET_ARCH_RISCV32
 
+config ADK_TARGET_CPU_RISCV64_RV64IMADC
+	bool "rv64imadc"
+	select ADK_TARGET_SUPPORTS_THREADS
+	select ADK_TARGET_SUPPORTS_NPTL if ADK_TARGET_WITH_MMU
+	select ADK_TARGET_SUPPORTS_LT
+	select ADK_TARGET_ABI_LP64D
+	depends on ADK_TARGET_ARCH_RISCV64
+
 config ADK_TARGET_CPU_RISCV64_RV64IMAC
 	bool "rv64imac"
 	select ADK_TARGET_SUPPORTS_THREADS
@@ -1267,14 +1278,6 @@ config ADK_TARGET_CPU_RISCV64_RV64IMAFC
 	select ADK_TARGET_ABI_LP64F
 	depends on ADK_TARGET_ARCH_RISCV64
 
-config ADK_TARGET_CPU_RISCV64_RV64IMADC
-	bool "rv64imadc"
-	select ADK_TARGET_SUPPORTS_THREADS
-	select ADK_TARGET_SUPPORTS_NPTL if ADK_TARGET_WITH_MMU
-	select ADK_TARGET_SUPPORTS_LT
-	select ADK_TARGET_ABI_LP64D
-	depends on ADK_TARGET_ARCH_RISCV64
-
 config ADK_TARGET_CPU_RISCV64_RV64IMAFDC
 	bool "rv64imafdc"
 	select ADK_TARGET_SUPPORTS_THREADS if ADK_TARGET_WITH_MMU
diff --git a/target/config/Config.in.float b/target/config/Config.in.float
index 3fd79d2b9..38d77d027 100644
--- a/target/config/Config.in.float
+++ b/target/config/Config.in.float
@@ -3,11 +3,13 @@
 
 choice ADK_TARGET_FLOAT_MODE
 prompt "Float configuration"
-depends on ADK_TARGET_ARCH_ARM || \
+depends on ADK_TARGET_ARCH_ARC || \
+	   ADK_TARGET_ARCH_ARM || \
 	   ADK_TARGET_ARCH_CSKY || \
 	   ADK_TARGET_ARCH_M68K || \
 	   ADK_TARGET_ARCH_MIPS || \
 	   ADK_TARGET_ARCH_NIOS2 || \
+	   ADK_TARGET_ARCH_OR1K || \
 	   ADK_TARGET_ARCH_PPC
 
 config ADK_TARGET_HARD_FLOAT
@@ -34,7 +36,8 @@ endchoice
 
 config ADK_TARGET_FLOAT
 	string
-	depends on !ADK_TARGET_ARCH_M68K \
+	depends on !ADK_TARGET_ARCH_ARC \
+		&& !ADK_TARGET_ARCH_M68K \
 		&& !ADK_TARGET_ARCH_NIOS2
 	default "hard" if ADK_TARGET_HARD_FLOAT || ADK_TARGET_HARD_FLOAT_SP || ADK_TARGET_HARD_FLOAT_DP
 	default "soft" if ADK_TARGET_SOFT_FLOAT
diff --git a/target/config/Config.in.fpu b/target/config/Config.in.fpu
index 1018937cd..0c4614bb0 100644
--- a/target/config/Config.in.fpu
+++ b/target/config/Config.in.fpu
@@ -21,7 +21,8 @@ config ADK_TARGET_ARCH_ARM_WITH_NEON
 
 config ADK_TARGET_FPU
 	string
-	depends on ADK_TARGET_ARCH_ARM
+	depends on ADK_TARGET_ARCH_ARC || ADK_TARGET_ARCH_ARM
+	default "fpus" if ADK_TARGET_CPU_WITH_FPU && ADK_TARGET_ARCH_ARC
 	default "vfp" if ADK_TARGET_CPU_WITH_FPU_VFP
 	default "vfpv3-fp16" if ADK_TARGET_CPU_ARM_CORTEX_A5 && !ADK_TARGET_ARCH_ARM_WITH_NEON
 	default "vfpv4" if ADK_TARGET_CPU_ARM_CORTEX_A7 && !ADK_TARGET_ARCH_ARM_WITH_NEON
diff --git a/target/config/Config.in.kernelfmt b/target/config/Config.in.kernelfmt
index 2704b08ae..d4ea880ca 100644
--- a/target/config/Config.in.kernelfmt
+++ b/target/config/Config.in.kernelfmt
@@ -113,3 +113,4 @@ config ADK_TARGET_KERNEL_APPEND_DTB
 	string
 	default "armada-xp-synology-ds414" if ADK_TARGET_SYSTEM_SYNOLOGY_DS414 && !ADK_TARGET_KERNEL_VENDORED_DTB
 	default "marvell/armada-xp-synology-ds414" if ADK_TARGET_SYSTEM_SYNOLOGY_DS414 && ADK_TARGET_KERNEL_VENDORED_DTB
+	default "intel/ixp/intel-ixp42x-linksys-nslu2" if ADK_TARGET_SYSTEM_LINKSYS_NSLU2 && ADK_TARGET_KERNEL_VENDORED_DTB
diff --git a/target/config/Config.in.qemuopts b/target/config/Config.in.qemuopts
index 8de8df429..d2bc23139 100644
--- a/target/config/Config.in.qemuopts
+++ b/target/config/Config.in.qemuopts
@@ -28,7 +28,6 @@ config ADK_TARGET_QEMU_WITH_BLOCK
 
 menu "Qemu system configuration"
 depends on ADK_TARGET_QEMU && (ADK_TARGET_SYSTEM_QEMU_X86_64 \
-				|| ADK_TARGET_SYSTEM_QEMU_CSKY \
 				|| ADK_TARGET_SYSTEM_QEMU_X86 \
 				|| ADK_TARGET_SYSTEM_QEMU_ARC \
 				|| ADK_TARGET_SYSTEM_QEMU_M68K_VIRT \
diff --git a/target/config/Config.in.rootfs b/target/config/Config.in.rootfs
index 5c658fd02..403a2739f 100644
--- a/target/config/Config.in.rootf