# Cubieboard 4 board-specific definitions
# This likely could be easily used for other Allwinner chipsets

HAIKU_BOARD_DESCRIPTION = "Cubieboard 4 (CC-A80)" ;
HAIKU_BOARD_FDT_NAME = "cubieboard4" ;

#
# Various hardcoded addresses
#

# 0x20000000 = SDRAM start
# 0x20007800 = haiku_loader_linux.ub
# 0x20087800 = BASE

HAIKU_BOARD_LOADER_BASE = 0x20087800 ;
HAIKU_BOARD_LOADER_ENTRY_RAW = $(HAIKU_BOARD_LOADER_BASE) ;
HAIKU_BOARD_LOADER_ENTRY_NBSD = `printf \"obase=16;ibase=16;8 + %x\\n\" $(HAIKU_BOARD_LOADER_BASE)|bc` ;
HAIKU_BOARD_LOADER_ENTRY_LINUX = `printf \"obase=16;ibase=16;10 + %x\\n\" $(HAIKU_BOARD_LOADER_BASE)|bc` ;

#
# mmc/SD image
#

HAIKU_BOARD_FIRMWARE_URL = "https://github.com/cubieboard/CC-A80-binaries/raw/master/bin" ;

# u-boot image
# Dear Cubbieboard, add fdt_addr_r, ramdisk_addr_r, kernel_addr_r to u-boot
HAIKU_BOARD_SDIMAGE_UBOOT_SCRIPT_NAME = boot.scr ;
HAIKU_BOARD_SDIMAGE_UBOOT_SCRIPT = "\
    fatload mmc 0 0x20800000 haiku-floppyboot.tgz.ub \
    fatload mmc 0 0x20007800 haiku_loader_linux.ub \
    bootm 0x20007800 0x20800000" ;

HAIKU_BOARD_SDIMAGE_FAT_SIZE = 32 ;
HAIKU_BOARD_SDIMAGE_FILES = 
	haiku_loader_linux.ub
	haiku-floppyboot.tgz.ub
	$(HAIKU_BOARD_SDIMAGE_UBOOT_SCRIPT_NAME)
;

HAIKU_BOARD_SDIMAGE_BEGIN = 40950 ; # 512-byte sectors (divisible by 63)
HAIKU_BOARD_SDIMAGE_SIZE = 128 ; # MiB

boot0File = [ DownloadFile sdcard-boot0 : $(HAIKU_BOARD_FIRMWARE_URL)/sdcard-boot0 ] ;
boot1File = [ DownloadFile sdcard-boot1 : $(HAIKU_BOARD_FIRMWARE_URL)/sdcard-boot1 ] ;

# The Allwinner chips require an SD card "blessed" with
# the boot0 SPL and boot1 (u-boot) at a fixed location on
# the SD card. (Dear AW, please support loading from FAT)
HAIKU_BOARD_SDIMAGE_BOOT0_FILE = $(boot0File) ;
HAIKU_BOARD_SDIMAGE_BOOT0_SEEK = 8192 ;
HAIKU_BOARD_SDIMAGE_BOOT1_FILE = $(boot1File) ;
HAIKU_BOARD_SDIMAGE_BOOT1_SEEK = 19554304 ;

#
# gcc flags for the specific cpu
#

local flags = -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard ;

HAIKU_ASFLAGS_$(HAIKU_PACKAGING_ARCH) += $(flags) ;
HAIKU_CCFLAGS_$(HAIKU_PACKAGING_ARCH) += $(flags) ;
HAIKU_C++FLAGS_$(HAIKU_PACKAGING_ARCH) += $(flags) ;

# Workaround for ld using 32k for alignment despite forcing it in the config...
# should definitely not be needed!
HAIKU_KERNEL_LINKFLAGS +=
    -Wl,-z -Wl,max-page-size=0x1000
    -Wl,-z -Wl,common-page-size=0x1000 ;
HAIKU_LINKFLAGS_$(HAIKU_PACKAGING_ARCH) +=
    -Wl,-z -Wl,max-page-size=0x1000
    -Wl,-z -Wl,common-page-size=0x1000 ;