50 lines
1.6 KiB
Diff
50 lines
1.6 KiB
Diff
From f3cbdb41b8e7194b03523eceed5dd8b488f93909 Mon Sep 17 00:00:00 2001
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From: popcornmix <popcornmix@gmail.com>
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Date: Sat, 16 Jun 2012 22:31:55 +0100
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Subject: [PATCH 016/196] Allow emmc clock to be specified as command line
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parameter
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---
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drivers/mmc/host/sdhci-bcm2708.c | 6 +++++-
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1 file changed, 5 insertions(+), 1 deletion(-)
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diff --git a/drivers/mmc/host/sdhci-bcm2708.c b/drivers/mmc/host/sdhci-bcm2708.c
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index d174938..0ee983c 100644
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--- a/drivers/mmc/host/sdhci-bcm2708.c
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+++ b/drivers/mmc/host/sdhci-bcm2708.c
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@@ -130,6 +130,7 @@ static inline unsigned long int since_ns(hptime_t t)
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}
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static bool allow_highspeed = 1;
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+static int emmc_clock_freq = BCM2708_EMMC_CLOCK_FREQ;
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#if 0
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static void hptime_test(void)
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@@ -355,7 +356,7 @@ void sdhci_bcm2708_writeb(struct sdhci_host *host, u8 val, int reg)
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static unsigned int sdhci_bcm2708_get_max_clock(struct sdhci_host *host)
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{
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- return BCM2708_EMMC_CLOCK_FREQ;
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+ return emmc_clock_freq;
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}
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/*****************************************************************************\
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@@ -1361,6 +1362,7 @@ module_init(sdhci_drv_init);
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module_exit(sdhci_drv_exit);
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module_param(allow_highspeed, bool, 0444);
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+module_param(emmc_clock_freq, int, 0444);
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MODULE_DESCRIPTION("Secure Digital Host Controller Interface platform driver");
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MODULE_AUTHOR("Broadcom <info@broadcom.com>");
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@@ -1368,4 +1370,6 @@ MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:"DRIVER_NAME);
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MODULE_PARM_DESC(allow_highspeed, "Allow high speed transfers modes");
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+MODULE_PARM_DESC(emmc_clock_freq, "Specify the speed of emmc clock");
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+
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--
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1.9.1
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