#!/usr/local/bin/bdmctrl
# 
# This script is for use with the bdmctrl utility and allows flashing of
# 5223x family devices from linux.
#
# Usage ./bdmctrl mcf52235.test /dev/tblcf2 elf_file
#
# see flashlib/README and bdmctrl/README.bdmctrl for more information
#
# you will need to run flashlib/compile_plugins with 5200 as a target
# and copy the resulting intelc3 plugin to the working folder
#

open $1

reset

# VBR
write-ctrl 0x0801 0x20000000

# RAMBAR
write-ctrl 0x0C05 0x20000021

# FLASHBAR
write-ctrl 0x0C04 0x00000061

# Enable PST[3:0] signals
write 0x40100074 0x0F 1

# Divide 25.0000 MHz clock to get 5.00 MHz PLL input clock
write 0x40120008 0x04 1

# Set RFD+1 to avoid frequency overshoot and wait for PLL to lock
write 0x40120000 0x4103 2
sleep 400

# Set desired RFD=0 and MFD=4 and wait for PLL to lock
write 0x40120000 0x4003 2
sleep 400

# Switch to using PLL
write 0x40120000 0x4007 2

# Set the flash clock
write 0x401D0002 0x55 1

# Unprotect all sectors
#CFMPROT
write 0x401D0010 0x00000000 4
#CFMSACC
write 0x401D0014 0x00000000 4
#CFMDACC
write 0x401D0018 0x00000000 4
#CFMMCR
write 0x401D0000 0x00000000 2

# Set flash algorithm vars
set IPSBAR            0x40000000
set MCF_CFM_CFMCLKD   0x1D0002
set MCF_CFM_CFMUSTAT  0x1D0020
set MCF_CFM_CFMCMD    0x1D0024
set FLASHBAR_REG      0x0C04
set FLASH_SIZE        0x40000
set FLASH_BACKDOOR    0x04000000

# notify flashlib that we have flash at address 0, plugin is flashcfm
flash 0 flashcfm

# erase the entire flash
erase 0 -1

# wait for the erase operation to complete
erase-wait 0

# perform a blank check
blank-chk 0 -1

# load our flash plugin to SRAM
flash-plugin 0x20000000 0x4000 flashcfm_5200.plugin

# load and verify
load -v $2

# dump some memory at the start of flash for debugging
dump-mem 0 48 l

execute

wait