目录
修改的文件:
文件修改说明:
这个是我在mtk芯片方案android 5.1的修改 ， 据我所知12版本以内都是这么改
灰常简单 希望能帮助有需要的人。文章来源：https://www.toymoban.com/news/detail-642684.html
主要对 MediaTek bootloader 的序列号长度和打印设置进行了优化，提高了序列号的长度，并改变了打印设置，使其在构建中也能打印调试信息。文章来源地址https://www.toymoban.com/news/detail-642684.html
修改的文件:
bootable/bootloader/lk/app/mt_boot/mt_boot.cbootable/bootloader/lk/target//xxx/include/target/cust_usb.h
文件修改说明:
-
mt_boot.c: 修改了串行号的长度定义，从19个字符增加到36个字符。同时，修改了打印设置，使其在用户构建中也能打印调试信息，而不仅仅是在开发者构建中打印。
同时修改了`read_product_info`函数。原来的函数会检查读取到的产品信息中的每个字符，如果字符既不是字母也不是数字，那么函数就会返回0。注释掉了这个检查，所以现在的函数会接受任何字符。 -
cust_usb.h: 修改了串行号的长度定义，从19个字符增加到36个字符。
---
bootable/bootloader/lk/app/mt_boot/mt_boot.c | 11 +++++------
.../lk/target/xxx8735_xxx/include/target/cust_usb.h | 2 +-
2 files changed, 6 insertions(+), 7 deletions(-)
mode change 100644 => 100755 bootable/bootloader/lk/target/xxx8735_xxx/include/target/cust_usb.h
diff --git a/bootable/bootloader/lk/app/mt_boot/mt_boot.c b/bootable/bootloader/lk/app/mt_boot/mt_boot.c
index 7ccabdb..e960fe7 100755
--- a/bootable/bootloader/lk/app/mt_boot/mt_boot.c
+++ b/bootable/bootloader/lk/app/mt_boot/mt_boot.c
@@ -78,14 +78,14 @@ u8 g_oemkey[OEM_PUBK_SZ] = {OEM_PUBK};
/* Please define SN_BUF_LEN in cust_usb.h */
#ifndef SN_BUF_LEN
-#define SN_BUF_LEN 19 /* fastboot use 13 bytes as default, max is 19 */
+#define SN_BUF_LEN 36 /* fastboot use 13 bytes as default, max is 19 */
#endif
#define FDT_BUFF_SIZE 1024
#define FDT_BUFF_PATTERN "BUFFEND"
#define DEFAULT_SERIAL_NUM "0123456789ABCDEF"
-#define SERIAL_NUM_FROM_BARCODE
+#define SERIAL_NUM_FROM_BARCODE 1
/*
* Support read barcode from /dev/pro_info to be serial number.
* Then pass the serial number from cmdline to kernel.
@@ -571,11 +571,10 @@ int boot_linux_fdt(void *kernel, unsigned *tags,
if (!has_set_p2u) {
- //shh modify print uart0 to normal uart0
#ifdef USER_BUILD
- sprintf(cmdline,"%s%s",cmdline," printk.disable_uart=1");
+ sprintf(cmdline,"%s%s",cmdline," printk.disable_uart=0");
#else
- sprintf(cmdline,"%s%s",cmdline," printk.disable_uart=1 ddebug_query=\"file *mediatek* +p ; file *gpu* =_\"");
+ sprintf(cmdline,"%s%s",cmdline," printk.disable_uart=0 ddebug_query=\"file *mediatek* +p ; file *gpu* =_\"");
#endif
/*Append pre-loader boot time to kernel command line*/
@@ -780,7 +779,7 @@ void boot_linux(void *kernel, unsigned *tags,
#endif
if (!has_set_p2u) {
#ifdef USER_BUILD
- sprintf(cmdline,"%s%s",cmdline," printk.disable_uart=1");
+ sprintf(cmdline,"%s%s",cmdline," printk.disable_uart=0");
#else
sprintf(cmdline,"%s%s",cmdline," printk.disable_uart=0 ddebug_query=\"file *mediatek* +p ; file *gpu* =_\"");
#endif
diff --git a/bootable/bootloader/lk/target/xxx8735_xxx/include/target/cust_usb.h b/bootable/bootloader/lk/target/xxx8735_xxx/include/target/cust_usb.h
old mode 100644
new mode 100755
index ec29e4b..bd26001
--- a/bootable/bootloader/lk/target/xxx8735_xxx/include/target/cust_usb.h
+++ b/bootable/bootloader/lk/target/xxx8735_xxx/include/target/cust_usb.h
@@ -9,6 +9,6 @@
#define USB_MANUFACTURER "MediaTek"
#define USB_PRODUCT_NAME "Android"
#define FASTBOOT_DEVNAME "mt6752_device"
-#define SN_BUF_LEN 19
+#define SN_BUF_LEN 36
#endif /* __CUST_USB_H__ */
-- bootable/bootloader/lk/app/mt_boot/mt_boot.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/bootable/bootloader/lk/app/mt_boot/mt_boot.c b/bootable/bootloader/lk/app/mt_boot/mt_boot.c
index e960fe7..074cdce 100755
--- a/bootable/bootloader/lk/app/mt_boot/mt_boot.c
+++ b/bootable/bootloader/lk/app/mt_boot/mt_boot.c
@@ -1140,8 +1140,10 @@ static inline int read_product_info(char *buf)
for( ; tmp < SN_BUF_LEN; tmp++) {
if( (buf[tmp] == 0 || buf[tmp] == 0x20) && tmp > 0) {
break;
- } else if( !isalpha(buf[tmp]) && !isdigit(buf[tmp]))
- return 0;
+ }
+ //$shh$20190311$disabled$sn -$
+ /* else if( !isalpha(buf[tmp]) && !isdigit(buf[tmp]))
+ return 0;*/
}
return tmp;
}
--
1.9.1到了这里，关于Android MediaTek bootloader 的序列号长度 & 移除非字母和数字限制 SN-Writer工具支持写入的文章就介绍完了。如果您还想了解更多内容，请在右上角搜索TOY模板网以前的文章或继续浏览下面的相关文章，希望大家以后多多支持TOY模板网！
