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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>
This commit is contained in:
Barry Song 2009-11-27 04:37:52 +00:00 committed by Mike Frysinger
parent c45c06596e
commit d45e8db1b2
1 changed files with 0 additions and 5 deletions
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5
arch/blackfin/kernel/setup.c
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@ -601,11 +601,6 @@ static __init void memory_setup(void)
page_mask_order = get_order(3 * page_mask_nelts * sizeof(long)); page_mask_order = get_order(3 * page_mask_nelts * sizeof(long));
#endif #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.start_code = (unsigned long)_stext;
init_mm.end_code = (unsigned long)_etext; init_mm.end_code = (unsigned long)_etext;
init_mm.end_data = (unsigned long)_edata; init_mm.end_data = (unsigned long)_edata;