linux-kernel - [PATCH 13/15] MIPS: malta: remove nonsense memory limit

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Date:	Fri, 22 May 2015 16:51:12 +0100
From:	Paul Burton <paul.burton@...tec.com>
To:	<linux-mips@...ux-mips.org>
CC:	<devicetree@...r.kernel.org>, Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	"Paul Burton" <paul.burton@...tec.com>,
	<linux-kernel@...r.kernel.org>,
	James Hogan <james.hogan@...tec.com>,
	Markos Chandras <markos.chandras@...tec.com>,
	"Ralf Baechle" <ralf@...ux-mips.org>
Subject: [PATCH 13/15] MIPS: malta: remove nonsense memory limit

This cap of Malta memory size to 0x7fff0000 was added by commit
e6ca4e5bf114 "MIPS: malta: malta-memory: Add support for the 'ememsize'
variable" as part of support for EVA, with only the cryptic comment
"Last 64K for HIGHMEM arithmetics". However

  - EVA is used to avoid highmem, both are not enabled at once which
    makes the comment about highmem macros nonsensical.

  - I can think of no good reason for it, and nor could anyone else I
    asked.

So remove this memsize limit.

Signed-off-by: Paul Burton <paul.burton@...tec.com>
---

 arch/mips/mti-malta/malta-memory.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/mips/mti-malta/malta-memory.c b/arch/mips/mti-malta/malta-memory.c
index 5660cd6..831f583 100644
--- a/arch/mips/mti-malta/malta-memory.c
+++ b/arch/mips/mti-malta/malta-memory.c
@@ -94,10 +94,6 @@ void __init fw_meminit(void)
 	else
 		memsize = physical_memsize;
 
-	/* Last 64K for HIGHMEM arithmetics */
-	if (memsize > 0x7fff0000)
-		memsize = 0x7fff0000;
-
 	add_memory_region(PHYS_OFFSET, 0x00001000, BOOT_MEM_RESERVED);
 
 	/*
-- 
2.4.1

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