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
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