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mec1322: disable host write to mapped memory

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EMI module has the ability to set different read and write ranges. Let's
disable write on mapped memory.

BUG=chrome-os-partner:24107
TEST=Write to mapped memory has no effect
BRANCH=None

Change-Id: I88654bde9208376103d3c084ee54991d886ea4cc
Signed-off-by: Vic (Chun-Ju) Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/182795
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
This commit is contained in:
Vic (Chun-Ju) Yang
2014-01-16 15:59:47 +08:00
committed by chrome-internal-fetch
parent fc91a7f7fd
commit ca9c2744ea
1 changed files with 1 additions and 1 deletions
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2
chip/mec1322/lpc.c
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@@ -194,7 +194,7 @@ static void setup_lpc(void)
MEC1322_LPC_EMI_BAR = 0x0800800f;
MEC1322_EMI_MBA0 = ptr;
MEC1322_EMI_MRL0 = 0x200;
MEC1322_EMI_MWL0 = 0x200;
MEC1322_EMI_MWL0 = 0x100;
/* We support LPC args and version 3 protocol */
*(lpc_get_memmap_range() + EC_MEMMAP_HOST_CMD_FLAGS) =