三、【s3c2440移植u-boot-2016-11】识别Nor Flash

David_linux

于 2018-06-15 22:02:08 发布

阅读量787

点赞数

CC 4.0 BY-SA版权

分类专栏： s3c2440移植u-boot-2016.11 文章标签： u-boot s3c2440 arm

本文链接：https://blog.youkuaiyun.com/David_linux/article/details/80710069

（一）解决u-boot读取完DRAM后卡死

1、修改common/board_f.c

diff -urN u-boot-2016.11/common/board_f.c u-boot-2016.11_s3c2440/common/board_f.c
--- u-boot-2016.11/common/board_f.c 2016-11-15 00:27:11.000000000 +0800
+++ u-boot-2016.11_s3c2440/common/board_f.c 2018-06-15 16:26:03.283161976 +0800
@@ -517,8 +517,9 @@
     * reserve memory for U-Boot code, data & bss
     * round down to next 4 kB limit
     */
-   gd->relocaddr -= gd->mon_len;
-   gd->relocaddr &= ~(4096 - 1);
+   //gd->relocaddr -= gd->mon_len;
+   //gd->relocaddr &= ~(4096 - 1);
+   gd->relocaddr = (unsigned int)_start;
 #ifdef CONFIG_E500
    /* round down to next 64 kB limit so that IVPR stays aligned */
    gd->relocaddr &= ~(65536 - 1);

2、烧写u-boot.bin到Nor Flash或Nand Flash上

book@ubuntu:~/u-boot-2016.11$ ./auto_run.sh

这里写图片描述

（二）查看Nor Flash信息

1、分析flash_init的过程

最低0.47元/天解锁文章

200万优质内容无限畅学