On Mon, Dec 09, 2013 at 04:07:29PM +0800, Kuo-Jung Su wrote: > 2013/12/6 Tom Rini <tr...@ti.com>: > > On Wed, Dec 04, 2013 at 11:50:48AM +0800, Kuo-Jung Su wrote: > > > >> Initial Program Loader (IPL) usually runs with .text and .rodata > >> in ROM, while .data and .bss reside in RAM. > >> > >> This patch uses the AT keyword to specify load address, > >> and a small code snippet in crt0.S to restore .data section > >> at runtime. > >> > >> Example usage: > >> Assume the target device has a 4KB ROM at 0x00000000 and a > >> 4KB SRAM at 0xA0000000, the IPL/SPL config could be: > >> > >> #define CONFIG_SPL_MAX_SIZE 0x1000 /* text + data, no bss */ > >> #define CONFIG_SPL_TEXT_BASE 0x00000000 > >> #define CONFIG_SPL_DATA_BASE 0xA0000000 > >> #define CONFIG_SPL_STACK 0xA0001000 > >> > >> Signed-off-by: Kuo-Jung Su <dant...@gmail.com> > >> Cc: Albert Aribaud <albert.u.b...@aribaud.net> > > > > Can you provide an example user of this functionality? Thanks. > > > > -- > > Tom > > If you're looking for a real device, unfortunately there is no such > device right now, > it's a shiny new design which just came out last week. > > If you're looking for a way for verification: > > 1. A real device with a NOR flash for ROM emulation. (e.g., Faraday A369 EVB) > > 2. A virtual device emulator. (e.g., Qemu) > > This is the best option for you, the Qemu model for Faraday A369 is > available at my github account. > Please use the command bellow to grab the source tree if necessary. > > $ git clone -b qemu-1.5.1 https://github.com/dantesu1218/qemu.git > $ cd qemu > $ ./configure --target-list=arm-softmmu > $ make > > The example IPL code for the up-coming Faraday A369 U-boot is also > available: > > $ git clone -b u-boot-2014.01 https://github.com/dantesu1218/u-boot.git > $ cd u-boot > $ make a369evb_ipl_config > $ make > > You could also directly grab the pre-built binaries for quick > verification. > > $ wget > https://drive.google.com/file/d/0BwfiewvSmUgAMlBnUkZQb3FMVkE/edit?usp=sharing > $ tar xf u-boot-a369-ipl.tar.bz2 > $ cd u-boot-a369-ipl > $ make
What I'm asking for, is can you upstream the a369evb board? In the README in board/... you should just document how to use it via QEMU. Thanks! -- Tom
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