The potential pitfalls for this patch are many, but I think the reward outweights the risk.
The script will need the usual 0755 treatment. Jordan -- Jordan Crouse Systems Software Development Engineer Advanced Micro Devices, Inc.
buildrom: Add script to automatically pad ROMs Many ROMs may need to be padded before use. This script tries to do this somewhat automatically. If the platform needs the payload to be padded to a power of 2, then it should set PAYLOAD_DOPAD to '-p'. Otherwise, the script behaves as it normally does. Signed-off-by: Jordan Crouse <[EMAIL PROTECTED]> Index: buildrom-devel/bin/construct-rom.sh =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ buildrom-devel/bin/construct-rom.sh 2008-09-22 15:45:11.000000000 -0600 @@ -0,0 +1,51 @@ +#!/bin/sh -e +# Usage: ./construct-rom.sh [-p] components ... + +DOPAD=0 + +if [ "$1" == "-p" ]; then + DOPAD=1 + shift +fi + +COMPONENTS=$* + +if [ $DOPAD -eq 1 ]; then + + ROMSIZE=0 + + # Get the size of all the components together + + for c in $COMPONENTS; do + size=`du -b $c | cut -f1` + ROMSIZE=`expr $ROMSIZE + $size` + done + + # Pad to a power of 2, starting with 128k + RSIZE=131072 + + while true; do + PAD=0 + + if [ $ROMSIZE -gt $RSIZE ]; then + RSIZE=`expr $RSIZE "*" 2` + continue + fi + + if [ $ROMSIZE -lt $RSIZE ]; then + PAD=`expr $RSIZE - $ROMSIZE` + fi + + break + done + + PADFILE=`mktemp` + dd if=/dev/zero of=$PADFILE bs=1 count=$PAD > /dev/null 2>&1 + COMPONENTS="$PADFILE $COMPONENTS" +fi + +cat $COMPONENTS + +if [ $DOPAD -eq 1 ]; then + rm -rf $PADFILE +fi Index: buildrom-devel/config/platforms/dbm690t.conf =================================================================== --- buildrom-devel.orig/config/platforms/dbm690t.conf 2008-09-22 15:04:25.000000000 -0600 +++ buildrom-devel/config/platforms/dbm690t.conf 2008-09-22 15:45:11.000000000 -0600 @@ -51,6 +51,9 @@ CBV2_TDIR=dbm690t CBV2_TAG=3590 +# Tell construct-rom.sh to pad the ROM to a power of 2 +PLATFORM_DOPAD := -p + # FILO configuration FILO_CONFIG=dbm690t-Config Index: buildrom-devel/config/platforms/platforms.conf =================================================================== --- buildrom-devel.orig/config/platforms/platforms.conf 2008-09-22 14:55:00.000000000 -0600 +++ buildrom-devel/config/platforms/platforms.conf 2008-09-22 15:45:11.000000000 -0600 @@ -6,6 +6,11 @@ STRIP=strip AS=as +# Each individual platform needs to decide if they want to pad the +# ROM or not + +PLATFORM_DOPAD := + ##Include the correct platform configuration PLATFORM-y= Index: buildrom-devel/packages/coreboot-v2/coreboot.inc =================================================================== --- buildrom-devel.orig/packages/coreboot-v2/coreboot.inc 2008-09-22 14:54:02.000000000 -0600 +++ buildrom-devel/packages/coreboot-v2/coreboot.inc 2008-09-22 15:45:11.000000000 -0600 @@ -150,7 +150,7 @@ $(OUTPUT_DIR)/$(TARGET_ROM): $(CBV2_COMPONENTS) @ mkdir -p $(OUTPUT_DIR) - @ cat $(CBV2_COMPONENTS) > $@ + @ $(BIN_DIR)/construct-rom.sh $(PLATFORM_DOPAD) $(CBV2_COMPONENTS) > $@ generic-coreboot: $(OUTPUT_DIR)/$(TARGET_ROM)
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