I did a quick test build of the current linux-omap head and get a
failure very early on in the boot process in
drivers/video/omap2/vram.c code:
Illegal SDRAM size for VRAM
It is generated by the following code:
bdata = NODE_DATA(0)->bdata;
sdram_start = bdata->node_min_pfn << PAGE_SHIFT;
sdram_size = (bdata->node_low_pfn << PAGE_SHIFT) - sdram_start;
if (paddr) {
if ((paddr & ~PAGE_MASK) || paddr < sdram_start ||
paddr + size > sdram_start + sdram_size) {
pr_err("Illegal SDRAM region for VRAM\n");
return;
}
if (reserve_bootmem(paddr, size, BOOTMEM_EXCLUSIVE) < 0) {
pr_err("FB: failed to reserve VRAM\n");
return;
}
} else {
if (size > sdram_size) {
pr_err("Illegal SDRAM size for VRAM\n");
return;
}
paddr = virt_to_phys(alloc_bootmem_pages(size));
BUG_ON(paddr & ~PAGE_MASK);
}
I modified the error pr_error to display the two values that are
compared to generate this error:
Illegal SDRAM size for VRAM: size=0xc00000 sdram_size=0x0
So it appears that the method used to get the sdram size no longer
works since it returns a size of 0!
I won't be able to spend more time on this till tomorrow. Perhaps
someone else can take a look in the meantime.
Steve
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