串口强刷固件地址应该在哪里?

Default
1

新手,正在学习,有个疑问问一下:
之前玩AR9331的时候,用串口配合tftp下载固件是这么一个操作:

先用编程器烧写一个uboot

然后tftp固件到RAM里: tftp 0x80002000 openwrt-ar71xx-generic-tl-wr710n-v1-squashfs-sysupgrade.bin

将固件下载下来,然后:
擦错SPI flash-> erase 0x9f020000 +0x8d0000
最后拷贝 -> cp.b 0x80800000 0x9f020000 0x8d0000

这样就完成了强刷

现在MT7688我也想这么搞,那么这些地址怎么确定呢?

2

感谢，我研究一下

3

https://github.com/widora/openwrt_widora/blob/master/target/linux/ramips/dts/WIDORA32128.dts
这里有FLASH内的偏移

m25p80@0 {
				#address-cells = <1>;
				#size-cells = <1>;
				compatible = "w25q256";
				reg = <0 0>;
				linux,modalias = "m25p80", "w25q256";
				spi-max-frequency = <40000000>;
				m25p,chunked-io = <31>;

				partition@0 {
					label = "u-boot";
					reg = <0x0 0x30000>;
					read-only;
				};

				partition@30000 {
					label = "u-boot-env";
					reg = <0x30000 0x10000>;
				};

				factory: partition@40000 {
					label = "factory";
					reg = <0x40000 0x10000>;
				};

				partition@50000 {
					label = "firmware";
					reg = <0x50000 0x1fb0000>;
				};
			};
4

主要是想搞懂,位置在哪里,因为以后可能产品量产会修改固件某个地方的值

5

直接用uboot的web刷不比你这个省事儿吗？
http://wiki.widora.cn/flash