Added erase entire flash utility to romboot.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6916 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/at91-2.6/image/romboot/patches/005-erase-flash.patch

@@ -0,0 +1,37 @@
+--- romboot.old/main.cpp	2007-04-05 15:51:51.000000000 +0200
++++ romboot/main.cpp	2007-04-10 10:33:10.000000000 +0200
+@@ -34,7 +34,7 @@
+ #define DELAY_MAIN_FREQ	1000
+ #define DISP_LINE_LEN 16
+ 
+-#define COMPACT 1
++//#define COMPACT 1
+ 
+ //* prototypes
+ extern void AT91F_DBGU_Printk(char *);
+@@ -65,6 +65,7 @@
+ 	"3: Copy SD-Card\n\r"
+   "4: Start U-BOOT\n\r"
+   "5: Clear bootloder\n\r"
++	"6: Erase entire flash\n\r"
+ };
+ 
+ //* Globales variables 
+@@ -555,6 +556,17 @@
+       		command = 0;
+       		break;
+ 	    
++    		case '6':
++      		{
++					int *i;
++	
++					for(i = (int *)0x20000000; i < (int *)0x20840000; i++)
++	  				*i = 0;
++      		}
++      		write_dataflash(0xc0000000, 0x20000000, 0x840000);
++      		command = 0;
++      		break;
++	    
+ 				default:
+       		command = 0;
+       		break;