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# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# Command automation for Blizzard LM4F chip

# Program internal flash

proc flash_lm4 {path offset size} {
	set firstsect [expr {$offset / 1024}];
	set lastsect [expr {($offset + $size) / 1024 - 1}];
	reset halt;
	flash erase_sector 0 $firstsect $lastsect;
	# Note erase_sector silently fails sometimes; see crosbug.com/p/8632
	# Dump a few words as a diagnostic for whether erase succeeded
	mdw 0 16
	flash write_image $path $offset;
	reset
}

# Link proto0 has 128KB flash; proto1+ have 256KB
proc flash_link { } {
	flash_lm4 ../../../build/link/ec.bin 0 262144
}

proc flash_link_a { } {
	flash_lm4 ../../../build/link/ec.A.bin 81920 81920
}

proc flash_link_b { } {
	flash_lm4 ../../../build/link/ec.B.bin 163840 81920
}

proc flash_bds { } {
	flash_lm4 ../../../build/bds/ec.bin 0 262144
}

# Boot a software using internal RAM only

proc ramboot_lm4 {path} {
	reset halt
	load_image $path 0x20000000 bin
	reg 15 0x20000400
	resume
}

proc ramboot_link { } {
	ramboot_lm4 ../../../build/link/ec.RO.flat
}

proc ramboot_bds { } {
	ramboot_lm4 ../../../build/bds/ec.RO.flat
}

proc flash_emerged_link { } {
	set firmware_image ../../../../../../chroot/build/link/firmware/ec.bin

	flash_lm4 $firmware_image 0 262144
}