Le 02/11/2010 10:56, Sughosh Ganu a écrit :
hi Albert,
On Tue Nov 02, 2010 at 10:47:49AM +0100, Albert ARIBAUD wrote:
Now a solution would be that the actual u-boot size be flashed along with it, for instance as a literal defined as '.word _end - _start' right after the vectors. The SPL could load a first NAND block, read the literal, round it to a multiple of NAND blocks by default, and then read this quantity.
That would remove the dependency at the cost of extra code in the SPL, though, and not all boards might be able to afford it.
Another issue is that the nand_spl might be compiled and flashed to the NAND as a separate entity, using a separate flashing mechanism. If we use the dynamic calculation of the u-boot size, this would necessitate building and flashing the nand_spl each time along with u-boot.
Not with the solution I describe, as the once-flashed SPL would fetch the actual size from the actual u-boot.
-sughosh
Amicalement,