On 17:30 Thu 02 Aug , Sascha Hauer wrote:
> On Mon, Jul 30, 2012 at 12:02:38PM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > From: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
> > +
> > void barebox_pbl(uint32_t offset)
> > {
> > + uint32_t compressed_start, compressed_end, len;
> > + void (*uncompress)(void *compressed_start, unsigned int len);
> > +
> > + compressed_start = (uint32_t)&input_data - offset;
> > + compressed_end = (uint32_t)&input_data_end - offset;
> > + len = compressed_end - compressed_start;
> > +
> > + /*
> > + * Check if the compressed binary will be overwritten
> > + * by the uncompressed binary
> > + */
> > + if (compressed_start >= TEXT_BASE &&
> > + compressed_start < TEXT_BASE + len * 4 ) {
> > + /*
> > + * copy compressed binary to its link address
> > + */
> > + memcpy(&input_data, (void *)compressed_start, len);
> > + compressed_start = (uint32_t)&input_data;
> > + }
> > +
> > + uncompress = barebox_uncompress;
> > +
> > + /* call barebox_uncompress with its absolute address */
> > + __asm__ __volatile__(
> > + "mov r0, %1\n"
> > + "mov r1, %2\n"
> > + "mov pc, %0\n"
> > + :
> > + : "r"(uncompress), "r"(compressed_start), "r"(len)
> > + : "r0", "r1");
>
> When the pbl code runs at its correct address, then we can simply do a
> barebox_uncompress() here.
>
> Fixed this before applying.
the code in start does not do this
we just do a call to barebox_pbl
are you really sure about this?
Best Regards,
J.
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