Commit d45e8db1 authored Nov 27, 2009 by Barry Song Committed by Mike Frysinger Dec 15, 2009

Blackfin: drop 4KB reserve at end of memory



The point of this small chunk was to avoid anomaly 05000310.  This never
really seemed to do what it was intended though -- no valid CPLBs exist
over the reserved memory, and there is often memory before it anyways (due
to the uClinux MTD and/or reserved DMA region).  Plus, it doesn't address
the L1 instruction case.

So drop this chunk as it wastes memory and is affront to humanity.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

parent c45c0659

arch/blackfin/kernel/setup.c

+0 −5

Original line number	Diff line number	Diff line
		@@ -601,11 +601,6 @@ static __init void memory_setup(void)
		page_mask_order = get_order(3 * page_mask_nelts * sizeof(long));
		#endif

		#if !defined(CONFIG_MTD_UCLINUX)
		/In case there is no valid CPLB behind memory_end make sure we don't get to close/
		memory_end -= SIZE_4K;
		#endif

		init_mm.start_code = (unsigned long)_stext;
		init_mm.end_code = (unsigned long)_etext;
		init_mm.end_data = (unsigned long)_edata;