I've a had hard time to get dfb to run on sigma 8634/8635 boards with their
mrua libraries above 142. Hope someone will find this usefull.
The alignment have to be changed like this,
systems/fbdev/fbdev.c, in system_initialize function under where the memory
gets mapped,
/* Map the framebuffer */
dfb_fbdev->framebuffer_base = mmap( NULL, shared->fix.smem_len,
PROT_READ | PROT_WRITE, MAP_SHARED,
dfb_fbdev->fd, 0 );
Add this to fix the allignment(only needed for standalone boards),
printf("Base memory: %x\n", dfb_fbdev->framebuffer_base);
#define PAGE_SIZE (4096)
if (shared->fix.smem_start & (PAGE_SIZE-1)) {
dfb_fbdev->framebuffer_base += (shared->fix.smem_start &
(PAGE_SIZE-1));
fprintf(stderr, "Fix alignment 0x%08lx -> %p.\n",
shared->fix.smem_start, dfb_fbdev->framebuffer_base);
}
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