# Marvell SheevaPlug 

source [find interface/guruplug.cfg]
source [find target/feroceon.cfg]

$_TARGETNAME configure \
	-work-area-phys 0x10000000 \
	-work-area-size 65536 \
	-work-area-backup 0

arm7_9 dcc_downloads enable

# this assumes the hardware default peripherals location before u-Boot moves it
nand device orion 0 0xd8000000

proc guruplug_init { } {

	# We need to assert DBGRQ while holding nSRST down.
	# However DBGACK will be set only when nSRST is released.
	jtag_reset 0 1
	feroceon.cpu arp_examine
	halt 0
	jtag_reset 0 0
	wait_halt

	arm926ejs cp15 0 0 1 0 0x00052078

	mww 0xD0001400 0x43000C30 #  DDR SDRAM Configuration Register
	mww 0xD0001404 0x39543000 #  Dunit Control Low Register
	mww 0xD0001408 0x22125451 #  DDR SDRAM Timing (Low) Register
	mww 0xD000140C 0x00000833 #  DDR SDRAM Timing (High) Register
	mww 0xD0001410 0x000000CC #  DDR SDRAM Address Control Register
	mww 0xD0001414 0x00000000 #  DDR SDRAM Open Pages Control Register
	mww 0xD0001418 0x00000000 #  DDR SDRAM Operation Register
	mww 0xD000141C 0x00000C52 #  DDR SDRAM Mode Register
	mww 0xD0001420 0x00000042 #  DDR SDRAM Extended Mode Register
	mww 0xD0001424 0x0000F17F #  Dunit Control High Register
	mww 0xD0001428 0x00085520 #  Dunit Control High Register
	mww 0xD000147c 0x00008552 #  Dunit Control High Register
	mww 0xD0001504 0x0FFFFFF1 #  CS0n Size Register
	mww 0xD0001508 0x10000000 #  CS1n Base Register
	mww 0xD000150C 0x0FFFFFF5 #  CS1n Size Register
	mww 0xD0001514 0x00000000 #  CS2n Size Register
	mww 0xD000151C 0x00000000 #  CS3n Size Register
	mww 0xD0001494 0x003C0000 #  DDR2 SDRAM ODT Control (Low) Register
	mww 0xD0001498 0x00000000 #  DDR2 SDRAM ODT Control (High) REgister
	mww 0xD000149C 0x0000F80F #  DDR2 Dunit ODT Control Register
	mww 0xD0001480 0x00000001 #  DDR SDRAM Initialization Control Register
	mww 0xD0020204 0x00000000 #  Main IRQ Interrupt Mask Register
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "
	mww 0xD0020204 0x00000000 #              "

	mww 0xD0010000 0x01111111 #  MPP  0 to 7
	mww 0xD0010004 0x11113322 #  MPP  8 to 15
	mww 0xD0010008 0x00001111 #  MPP 16 to 23

	mww 0xD0010418 0x003E07CF #  NAND Read Parameters REgister
	mww 0xD001041C 0x000F0F0F #  NAND Write Parameters Register
	mww 0xD0010470 0x01C7D943 #  NAND Flash Control Register

}

proc guruplug_reflash_uboot { } {

        # reflash the u-Boot binary and reboot into it
	guruplug_init
        nand probe 0
        nand erase 0 0 2
        nand write 0 openocd/uboot.bin 0 oob_softecc
        resume

}

proc guruplug_reflash_uboot_env { } {
        # reflash the u-boot environment variables area                                                                                                      
        guruplug_init
        nand probe 0
        nand erase 0 2 4
        nand write 0 openocd/uboot-env.bin 0x00040000 oob_softecc
        resume
}

proc guruplug_load_uboot { } {

	# load u-Boot into RAM and execute it
	guruplug_init
	load_image uboot.elf
	verify_image uboot.elf
	resume 0x00600000

}