move ifxmips uboot to package/

[openwrt/staging/yousong.git] / package / uboot-ifxmips / files / board / danube / README

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+/*
+** Copyright (C) 2005 Wu Qi Ming <Qi-Ming.Wu@infineon.com>
+**  
+** This program is free software; you can redistribute it and/or modify
+** it under the terms of the GNU General Public License as published by
+** the Free Software Foundation; either version 2 of the License, or
+** (at your option) any later version.
+** 
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+** 
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software 
+** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
+
+To build a u-boot for danube board, user need to do the following things:
+To configure u-boot for a proper board, user need to modify two files accordingly.
+
+To configure u-boot for evaluation board, in danube-uboot/include/configs/danube.h, set
+#define USE_EVALUATION_BOARD
+#undef  USE_REFERENCE_BOARD
+and vice-versa.
+
+To let u-boot boot from ebu(flash,e.g), in danube-uboot/include/configus/danube.h, set 
+#define   DANUBE_BOOT_FROM_EBU
+Otherwise u-boot will be compiled for booting from RAM.
+
+To use DDR RAM running at 111M, in danube-uboot/include/configus/danube.
+h, set
+#define  DANUBE_DDR_RAM_111M
+#undef   DANUBE_DDR_RAM_166M
+and vice-versa.
+
+To define RAM size of RAM, in danube-uboot/include/configus/danube.
+h, set
+#define RAM_SIZE                0x2000000 /*32M ram*/
+This is an example for a 32M RAM.
+
+
+Besides above settings, user need to change danube-uboot/board/danube/config.mk to set the loading address of u-boot.
+If U-Boot is to boot from EBU(flash), user needs to set
+TEXT_BASE=0xB0000000
+If u-boot is to boot from RAM, user needs to set
+TEXT_BASE=0xa0400000
+
+Use the script gct to build a uart downloadable u-boot image:
+./gct danube_ref_ddr166.conf u-boot.srec u-boot.asc
+
+
+
+
+