riscv-openocd/tcl/board/pxa255_sst.cfg

# A PXA255 test board with SST 39LF400A flash
#
# At reset the memory map is as follows. Note that
# the memory map changes later on as the application
# starts...
#
# RAM at 0x4000000
# Flash at 0x00000000
#
source [find target/pxa255.cfg]

# Target name is set by above
$_TARGETNAME configure -work-area-virt 0 -work-area-phys 0x4000000 -work-area-size 0x4000 -work-area-backup 0

# flash bank <driver> <base> <size> <chip_width> <bus_width> <target> [options]
flash bank cfi 0x00000000 0x80000 2 2 $_TARGETNAME jedec_probe

proc pxa255_sst_init {} {
	xscale cp15   15      0x00002001  #Enable CP0 and CP13 access
	#
	# setup GPIO
	#
	mww    0x40E00018  0x00008000  #CPSR0
	sleep   20
	mww    0x40E0001C  0x00000002  #GPSR1
	sleep   20
	mww    0x40E00020  0x00000008  #GPSR2
	sleep   20
	mww    0x40E0000C  0x00008000  #GPDR0
	sleep   20
	mww    0x40E00054  0x80000000  #GAFR0_L
	sleep   20
	mww    0x40E00058  0x00188010  #GAFR0_H
	sleep   20
	mww    0x40E0005C  0x60908018  #GAFR1_L
	sleep   20
	mww    0x40E0000C  0x0280E000  #GPDR0
	sleep   20
	mww    0x40E00010  0x821C88B2  #GPDR1
	sleep   20
	mww    0x40E00014  0x000F03DB  #GPDR2
	sleep   20
	mww    0x40E00000  0x000F03DB  #GPLR0
	sleep   20


	mww    0x40F00004  0x00000020  #PSSR
	sleep   20

	#
	# setup memory controller
	#
	mww    0x48000008  0x01111998  #MSC0
	sleep   20
	mww    0x48000010  0x00047ff0  #MSC2
	sleep   20
	mww    0x48000014  0x00000000  #MECR
	sleep   20
	mww    0x48000028  0x00010504  #MCMEM0
	sleep   20
	mww    0x4800002C  0x00010504  #MCMEM1
	sleep   20
	mww    0x48000030  0x00010504  #MCATT0
	sleep   20
	mww    0x48000034  0x00010504  #MCATT1
	sleep   20
	mww    0x48000038  0x00004715  #MCIO0
	sleep   20
	mww    0x4800003C  0x00004715  #MCIO1
	sleep   20
	#
	mww    0x48000004  0x03CA4018  #MDREF
	sleep   20
	mww    0x48000004  0x004B4018  #MDREF
	sleep   20
	mww    0x48000004  0x000B4018  #MDREF
	sleep   20
	mww    0x48000004  0x000BC018  #MDREF
	sleep   20
	mww    0x48000000  0x00001AC8  #MDCNFG
	sleep   20

	sleep   20

	mww    0x48000000  0x00001AC9  #MDCNFG
	sleep   20
	mww    0x48000040  0x00000000  #MDMRS
	sleep   20
}

$_TARGETNAME configure -event reset-init {pxa255_sst_init}

reset_config trst_and_srst

jtag_nsrst_delay 200
jtag_ntrst_delay 200

#xscale debug_handler 0  0xFFFF0800      # debug handler base address