# SPDX-License-Identifier: GPL-2.0-or-later

# Avalue RSC-W8910 sbc
# http://www.avalue.com.tw/products/RSC-W910.cfm
# 2MB NOR Flash
# 64MB SDRAM
# 128MB NAND Flash

# Based on Nuvoton nuc910
source [find target/nuc910.cfg]

#
# reset only behaves correctly if we use srst_pulls_trst
#
reset_config trst_and_srst srst_pulls_trst

adapter speed 1000
adapter srst delay 100
jtag_ntrst_delay 100

$_TARGETNAME configure -work-area-phys 0x00000000 -work-area-size 0x04000000 -work-area-backup 0

set _FLASHNAME $_CHIPNAME.flash
flash bank $_FLASHNAME cfi 0x20000000 0x00200000 2 2 $_TARGETNAME

set _NANDNAME $_CHIPNAME.nand
nand device $_NANDNAME nuc910 $_TARGETNAME

#
# Target events
#

$_TARGETNAME configure -event reset-start {adapter speed 1000}

$_TARGETNAME configure -event reset-init {
	# switch on PLL for 200MHz operation
	# running from 15MHz input clock

	mww 0xB0000200 0x00000030 ;# CLKEN
	mww 0xB0000204 0x00000f3c ;# CLKSEL
	mww 0xB0000208 0x05007000 ;# CLKDIV
	mww 0xB000020C 0x00004f24 ;# PLLCON0
	mww 0xB0000210 0x00002b63 ;# PLLCON1
	mww 0xB000000C 0x08817fa6 ;# MFSEL
	sleep 10

	# we are now running @ 200MHz
	# enable all openocd speed tweaks

	arm7_9 dcc_downloads enable
	arm7_9 fast_memory_access enable
	adapter speed 15000

	# map nor flash to 0x20000000
	# map sdram to 0x00000000

	mww 0xb0001000 0x000530c1 ;# EBICON
	mww 0xb0001004 0x40030084 ;# ROMCON
	mww 0xb0001008 0x000010ee ;# SDCONF0
	mww 0xb000100C 0x00000000 ;# SDCONF1
	mww 0xb0001010 0x0000015b ;# SDTIME0
	mww 0xb0001014 0x0000015b ;# SDTIME1
	mww 0xb0001018 0x00000000 ;# EXT0CON
	mww 0xb000101C 0x00000000 ;# EXT1CON
	mww 0xb0001020 0x00000000 ;# EXT2CON
	mww 0xb0001024 0x00000000 ;# EXT3CON
	mww 0xb000102c 0x00ff0048 ;# CKSKEW
}
