openwrtv4/target/linux/brcm2708/patches-3.10/0016-Allow-emmc-clock-to-be-specified-as-command-line-par.patch
Florian Fainelli bb39b8d99a brcm2708: update against latest rpi-3.10.y branch
Update our copies of the brcm2708 patches to the latest rpi-3.10-y
rebased against linux-3.10.y stable (3.10.32). This should hopefully
make it easier for us in the future to leverage the raspberry/rpi-*
branches.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 39770
2014-02-28 20:30:08 +00:00

44 lines
1.4 KiB
Diff

From 9227615100c139c48fbbf39312b38c4430eac00d Mon Sep 17 00:00:00 2001
From: popcornmix <popcornmix@gmail.com>
Date: Sat, 16 Jun 2012 22:31:55 +0100
Subject: [PATCH 016/174] Allow emmc clock to be specified as command line
parameter
---
drivers/mmc/host/sdhci-bcm2708.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/mmc/host/sdhci-bcm2708.c
+++ b/drivers/mmc/host/sdhci-bcm2708.c
@@ -130,6 +130,7 @@ static inline unsigned long int since_ns
}
static bool allow_highspeed = 1;
+static int emmc_clock_freq = BCM2708_EMMC_CLOCK_FREQ;
#if 0
static void hptime_test(void)
@@ -355,7 +356,7 @@ void sdhci_bcm2708_writeb(struct sdhci_h
static unsigned int sdhci_bcm2708_get_max_clock(struct sdhci_host *host)
{
- return BCM2708_EMMC_CLOCK_FREQ;
+ return emmc_clock_freq;
}
/*****************************************************************************\
@@ -1361,6 +1362,7 @@ module_init(sdhci_drv_init);
module_exit(sdhci_drv_exit);
module_param(allow_highspeed, bool, 0444);
+module_param(emmc_clock_freq, int, 0444);
MODULE_DESCRIPTION("Secure Digital Host Controller Interface platform driver");
MODULE_AUTHOR("Broadcom <info@broadcom.com>");
@@ -1368,4 +1370,6 @@ MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:"DRIVER_NAME);
MODULE_PARM_DESC(allow_highspeed, "Allow high speed transfers modes");
+MODULE_PARM_DESC(emmc_clock_freq, "Specify the speed of emmc clock");
+