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Date:	Thu, 13 Mar 2008 23:45:00 +0100
From:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To:	linux-ide@...r.kernel.org
Cc:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 11/12] cmd640: add "cmd_clock=" parameter

Add "cmd_clock=" parameter for specifying VLB or PCI bus clock frequency
(in MHz).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
 drivers/ide/pci/cmd640.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Index: b/drivers/ide/pci/cmd640.c
===================================================================
--- a/drivers/ide/pci/cmd640.c
+++ b/drivers/ide/pci/cmd640.c
@@ -157,6 +157,8 @@ static int cmd640_vlb;
 #define DRWTIM23	0x58
 #define BRST		0x59
 
+static int cmd_clock;
+
 /*
  * Registers and masks for easy access by drive index:
  */
@@ -552,7 +554,7 @@ static void cmd640_set_mode(ide_drive_t 
 {
 	int setup_time, active_time, recovery_time, clock_time;
 	u8 setup_count, active_count, recovery_count, recovery_count2, cycle_count;
-	int bus_speed = system_bus_clock();
+	int bus_speed = cmd_clock ? cmd_clock : system_bus_clock();
 
 	if (pio_mode > 5)
 		pio_mode = 5;
@@ -904,4 +906,7 @@ static int __init cmd640x_init(void)
 module_param_named(probe_vlb, cmd640_vlb, bool, 0);
 MODULE_PARM_DESC(probe_vlb, "probe for VLB version of CMD640 chipset");
 
+module_param(cmd_clock, int, 0);
+MODULE_PARM_DESC(cmd_clock, "VLB or PCI bus clock frequency (in MHz)");
+
 module_init(cmd640x_init);
--
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