让 VROM 加载图像并跳转到 Nexus One 上的某个地址?
我想尝试在我的 Nexus One 手机上运行低级代码,但我找不到合适的手册来描述如何操作。
据我所知,VROM 在跳转到引导加载程序之前会进行一些初始引导,然后引导加载程序将解压并加载 Linux 内核。我想要做的是将自定义映像传递到 VROM 并使其跳转到我的入口点(将映像放置在特定地址并使 CPU 跳转到它)。
可能吗?有没有任何文档描述 Nexus One 使用的SoC?
I want to try experimenting with running low level code my Nexus One phone, but I can't find a suitable manual describing how.
As far as I know, the VROM does some initial bootstrapping before jumping to the bootloader which would then unpack and load the Linux kernel. What I want to be able to do is to pass a custom image to the VROM and make it jump to my entry point (place an image at a specific address and make the CPU jump to it).
Is it possible? And is there any documentation describing the SoC used by Nexus One?
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想通了。这是不可能的。
Nexus One 的第一阶段引导加载程序没有用于引导自定义代码的工具。必须用JTAG来完成。
Figured it out. It's impossible.
Nexus One's first stage boot-loader has no facilities for bootstrapping custom code. Has to be done with JTAG.