From ca9c2744eace5c803a948502c032f99d602a0566 Mon Sep 17 00:00:00 2001 From: "Vic (Chun-Ju) Yang" Date: Thu, 16 Jan 2014 15:59:47 +0800 Subject: [PATCH] mec1322: disable host write to mapped memory 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 Reviewed-on: https://chromium-review.googlesource.com/182795 Reviewed-by: Vincent Palatin --- chip/mec1322/lpc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/chip/mec1322/lpc.c b/chip/mec1322/lpc.c index 3dc39a18e6..7974940e34 100644 --- a/chip/mec1322/lpc.c +++ b/chip/mec1322/lpc.c @@ -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) =