From f3cbdb41b8e7194b03523eceed5dd8b488f93909 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Sat, 16 Jun 2012 22:31:55 +0100 Subject: [PATCH 016/196] Allow emmc clock to be specified as command line parameter --- drivers/mmc/host/sdhci-bcm2708.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci-bcm2708.c b/drivers/mmc/host/sdhci-bcm2708.c index d174938..0ee983c 100644 --- 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(hptime_t t) } 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_host *host, u8 val, int reg) 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 "); @@ -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"); + -- 1.9.1