add linux 4.6 support, finally with appended DTB qemu-system-nios2 boots

mk/kernel-ver.mk

@@ -19,6 +19,12 @@ endif
 KERNEL_RELEASE:=	1
 KERNEL_VERSION:=	$(KERNEL_FILE_VER)-$(KERNEL_RELEASE)
 endif
+ifeq ($(ADK_TARGET_KERNEL_VERSION_4_6_0),y)
+KERNEL_FILE_VER:=	4.6
+KERNEL_RELEASE:=	1
+KERNEL_VERSION:=	$(KERNEL_FILE_VER)-$(KERNEL_RELEASE)
+KERNEL_HASH:=		a93771cd5a8ad27798f22e9240538dfea48d3a2bf2a6a6ab415de3f02d25d866
+endif
 ifeq ($(ADK_TARGET_KERNEL_VERSION_4_5_4),y)
 KERNEL_FILE_VER:=	4.5.4
 KERNEL_RELEASE:=	1

target/config/Config.in.kernelversion

@@ -10,13 +10,20 @@ default ADK_TARGET_KERNEL_VERSION_4_4_10
 config ADK_TARGET_KERNEL_VERSION_GIT
 	bool "linux-git"
 
+config ADK_TARGET_KERNEL_VERSION_4_6_0
+	bool "4.6"
+	depends on !ADK_TARGET_BOARD_BCM28XX
+	select ADK_TARGET_KERNEL_VERSION_4_6
+
 config ADK_TARGET_KERNEL_VERSION_4_5_4
 	bool "4.5.4"
+	depends on !ADK_TARGET_ARCH_NIOS2
 	depends on !ADK_TARGET_BOARD_BCM28XX
 	select ADK_TARGET_KERNEL_VERSION_4_5
 
 config ADK_TARGET_KERNEL_VERSION_4_4_10
 	bool "4.4.10"
+	depends on !ADK_TARGET_ARCH_NIOS2
 	select ADK_TARGET_KERNEL_VERSION_4_4
 
 config ADK_TARGET_KERNEL_VERSION_4_1_24
@@ -24,6 +31,7 @@ config ADK_TARGET_KERNEL_VERSION_4_1_24
 	depends on !ADK_TARGET_ARCH_ARC
 	depends on !ADK_TARGET_ARCH_BFIN
 	depends on !ADK_TARGET_ARCH_H8300
+	depends on !ADK_TARGET_ARCH_NIOS2
 	depends on !ADK_TARGET_ARCH_SPARC
 	depends on !ADK_TARGET_SYSTEM_KINETIS_K70
 	depends on !ADK_TARGET_SYSTEM_SOLIDRUN_IMX6
@@ -141,6 +149,9 @@ config ADK_TARGET_KERNEL_HASH
 	help
 	  GIT hash to use.
 
+config ADK_TARGET_KERNEL_VERSION_4_6
+	bool
+
 config ADK_TARGET_KERNEL_VERSION_4_5
 	bool
 

target/linux/config/Config.in.serial

@@ -77,6 +77,7 @@ config ADK_KERNEL_SERIAL_8250
 	select ADK_KERNEL_SERIAL_OF_PLATFORM if ADK_TARGET_SYSTEM_XILINX_KINTEX7 \
 						|| ADK_TARGET_SYSTEM_QEMU_XTENSA \
 						|| ADK_TARGET_SYSTEM_QEMU_MICROBLAZE_ML605 \
+						|| ADK_TARGET_SYSTEM_QEMU_NIOS2 \
 						|| ADK_TARGET_SYSTEM_QEMU_OR1K \
 						|| ADK_TARGET_SYSTEM_OR1K_SIM
 	select ADK_KERNEL_SERIAL_8250_PNP if ADK_TARGET_SYSTEM_PCENGINES_APU
@@ -88,6 +89,7 @@ config ADK_KERNEL_SERIAL_8250
 		|| ADK_TARGET_SYSTEM_PCENGINES_ALIX \
 		|| ADK_TARGET_SYSTEM_QEMU_MICROBLAZE_ML605 \
 		|| ADK_TARGET_SYSTEM_QEMU_MIPS \
+		|| ADK_TARGET_SYSTEM_QEMU_NIOS2 \
 		|| ADK_TARGET_SYSTEM_QEMU_OR1K \
 		|| ADK_TARGET_SYSTEM_QEMU_PPC_BAMBOO \
 		|| ADK_TARGET_SYSTEM_QEMU_X86 \
@@ -106,6 +108,7 @@ config ADK_KERNEL_SERIAL_8250
 	default y if ADK_TARGET_SYSTEM_PCENGINES_ALIX
 	default y if ADK_TARGET_SYSTEM_QEMU_MICROBLAZE_ML605
 	default y if ADK_TARGET_SYSTEM_QEMU_MIPS
+	default y if ADK_TARGET_SYSTEM_QEMU_NIOS2
 	default y if ADK_TARGET_SYSTEM_QEMU_OR1K
 	default y if ADK_TARGET_SYSTEM_QEMU_PPC_BAMBOO
 	default y if ADK_TARGET_SYSTEM_QEMU_X86

target/nios2/Makefile

@@ -8,7 +8,7 @@ include $(ADK_TOPDIR)/mk/image.mk
 KERNEL:=$(LINUX_DIR)/vmlinux
 OSTRIP:=-R .reginfo -R .notes -R .note -R .comment -R .mdebug -R .note.gnu.build-id
 
-QEMU_ARGS+=-M 10m50-ghrd -dtb $(FW_DIR)/10m50_devboard.dtb
+QEMU_ARGS+=-M 10m50-ghrd
 QEMU_ARGS+=${ADK_QEMU_ARGS}
 
 # target helper text
@@ -53,7 +53,7 @@ endif
 
 # image creation and kernel install
 kernel-strip:
-	$(TARGET_CROSS)objcopy $(OSTRIP) -S $(KERNEL) $(BUILD_DIR)/$(TARGET_KERNEL)
+	@cp $(KERNEL) $(BUILD_DIR)/$(TARGET_KERNEL)
 
 kernel-install: kernel-strip
 	@cp $(BUILD_DIR)/$(TARGET_KERNEL) $(FW_DIR)/$(TARGET_KERNEL)

target/nios2/kernel/qemu-nios2

@@ -5,5 +5,7 @@ CONFIG_NIOS2_HW_DIV_SUPPORT=y
 CONFIG_CUSTOM_CACHE_SETTINGS=y
 CONFIG_NIOS2_DCACHE_SIZE=0x8000
 CONFIG_NIOS2_ICACHE_SIZE=0x8000
-CONFIG_SERIAL_OF_PLATFORM=y
-CONFIG_SERIAL_ALTERA_JTAGUART=y
+CONFIG_NIOS2_DTB_SOURCE_BOOL=y
+CONFIG_NIOS2_DTB_SOURCE="arch/nios2/boot/dts/10m50_devboard.dts"
+CONFIG_CMDLINE_BOOL=y
+CONFIG_NIOS2_PASS_CMDLINE=y