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.
Sascha
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