From a75fe99487a1387abea287f900345ee3d778b33c Mon Sep 17 00:00:00 2001
From: Robert Nelson <robertcnelson@gmail.com>
Date: Mon, 10 Jan 2011 11:52:19 -0600
Subject: [PATCH] add --earlyprintk option for debugging

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
---
 mk_mmc.sh | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/mk_mmc.sh b/mk_mmc.sh
index 985dedf..56bfb12 100755
--- a/mk_mmc.sh
+++ b/mk_mmc.sh
@@ -27,6 +27,7 @@ unset FIRMWARE
 unset SERIAL_MODE
 unset BETA
 unset USB_ROOTFS
+unset PRINTK
 
 BOOT_LABEL=boot
 PARTITION_PREFIX=""
@@ -79,6 +80,10 @@ DIST=squeeze
   sed -i 's/mmcblk0p5/sda1/g' ${DIR}/scripts/serial-normal-squeeze.cmd
  fi
 
+ if [ "$PRINTK" ];then
+  sed -i 's/bootargs/bootargs earlyprintk/g' ${DIR}/scripts/serial*.cmd
+ fi
+
 }
 
 function dl_xload_uboot {
@@ -688,6 +693,10 @@ function reset_scripts {
   sed -i 's/sda1/mmcblk0p5/g' ${DIR}/scripts/serial-normal-squeeze.cmd
  fi
 
+ if [ "$PRINTK" ];then
+  sed -i 's/bootargs earlyprintk/bootargs/g' ${DIR}/scripts/serial*.cmd
+ fi
+
 }
 
 function check_mmc {
@@ -869,6 +878,9 @@ while [ ! -z "$1" ]; do
 	--usb-rootfs)
             USB_ROOTFS=1
             ;;
+	--earlyprintk)
+            PRINTK=1
+            ;;
     esac
     shift
 done