> +{
> + u32 r;
> +
> + /* Setup the stack */
> + r = STACK_BASE + STACK_SIZE - 16;
> + __asm__ __volatile__("mov sp, %0" : : "r"(r));
> + /* clear bss */
> + memset(__bss_start, 0, __bss_stop - __bss_start);
> +
> + start_barebox();
> +}
> +#else
> void __naked __section(.text_entry) start(void)
> {
> barebox_arm_head();
> }
> +#endif
>
> void __naked __section(.text_exceptions) exception_vectors(void)
> {
> __asm__ __volatile__ (
> ".arm\n"
> - "b reset\n" /* reset */
> + "1: b 1b\n" /* reset */
> #ifdef CONFIG_ARM_EXCEPTIONS
> "ldr pc, =undefined_instruction\n" /* undefined
> instruction */
> "ldr pc, =software_interrupt\n" /* software interrupt
> (SWI) */
> @@ -98,6 +118,34 @@ void __naked __bare_init reset(void)
> board_init_lowlevel_return();
> }
>
> +extern void *input_data;
> +extern void *input_data_end;
> +
> +#define STATIC static
> +#include "../../../lib/decompress_unlzo.c"
> +
> +void barebox_uncompress(void *compressed_start, unsigned int len)
> +{
> + void (*barebox)(void);
need to check here if we are at TEXT_BASE (I mean if the code run where we are
supposed to uncompress
otherwise on at91 it will not work as the bootstrap put use at TEXT_BASE
so we have need to link at an other address
but the decompressor need work anyway by copying itself with the data before
of after the TEXT_BASE
and we should take the uncompress size about 4 times the compressed one.
There is nearly no change to compress more than 75%
otherwise Tested by: Jean-Christophe PLAGNIOL-VILLARD <[email protected]>
Best Regards,
J.
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