2008-12-12 13:58:53 +02:00
|
|
|
From 66a83c97c4545ce4f07e0d90998f906fae49caf2 Mon Sep 17 00:00:00 2001
|
2008-12-12 02:02:36 +02:00
|
|
|
From: Andy Green <andy@openmoko.com>
|
2008-12-12 13:58:53 +02:00
|
|
|
Date: Tue, 22 Jul 2008 13:16:29 +0100
|
2008-12-12 02:02:36 +02:00
|
|
|
Subject: [PATCH] fix-glamo-mci-set-default-drive-level-0.patch
|
|
|
|
|
|
|
|
|
|
Tests on access to SD Card with Glamo drive level "0" show
|
|
|
|
|
that it reduces SD_CLK energy at 1.5GHz by 24dBm compared to
|
|
|
|
|
drive level 3. This puts it only 6dB above the background
|
|
|
|
|
noise floor compared to 30dB and should make a solution for
|
|
|
|
|
GPS trouble with SD Card in.
|
|
|
|
|
|
|
|
|
|
SD card communication seems unaffected so far on the Sandisk
|
|
|
|
|
512MB card we ship.
|
|
|
|
|
|
|
|
|
|
Signed-off-by: Andy Green <andy@openmoko.com>
|
|
|
|
|
---
|
|
|
|
|
drivers/mfd/glamo/glamo-mci.c | 2 +-
|
|
|
|
|
1 files changed, 1 insertions(+), 1 deletions(-)
|
|
|
|
|
|
|
|
|
|
diff --git a/drivers/mfd/glamo/glamo-mci.c b/drivers/mfd/glamo/glamo-mci.c
|
2008-12-12 13:58:53 +02:00
|
|
|
index 6585821..45b0afc 100644
|
2008-12-12 02:02:36 +02:00
|
|
|
--- a/drivers/mfd/glamo/glamo-mci.c
|
|
|
|
|
+++ b/drivers/mfd/glamo/glamo-mci.c
|
|
|
|
|
@@ -66,7 +66,7 @@ module_param(sd_max_clk, int, 0644);
|
|
|
|
|
* for example
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
-static int sd_drive = 2;
|
|
|
|
|
+static int sd_drive;
|
|
|
|
|
module_param(sd_drive, int, 0644);
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
--
|
2008-12-12 13:58:53 +02:00
|
|
|
1.5.6.5
|
2008-12-12 02:02:36 +02:00
|
|
|
|
