diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c
index 83367265..8a8b089 100644
--- a/arch/arm/mach-orion5x/common.c
+++ b/arch/arm/mach-orion5x/common.c
@@ -146,7 +146,6 @@
  ****************************************************************************/
 struct mv643xx_eth_shared_platform_data orion5x_eth_shared_data = {
 	.dram		= &orion5x_mbus_dram_info,
-	.t_clk		= ORION5X_TCLK,
 };
 
 static struct resource orion5x_eth_shared_resources[] = {
@@ -282,7 +281,7 @@
 		.flags		= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 		.iotype		= UPIO_MEM,
 		.regshift	= 2,
-		.uartclk	= ORION5X_TCLK,
+		.uartclk	= 0,
 	}, {
 	},
 };
@@ -326,7 +325,7 @@
 		.flags		= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 		.iotype		= UPIO_MEM,
 		.regshift	= 2,
-		.uartclk	= ORION5X_TCLK,
+		.uartclk	= 0,
 	}, {
 	},
 };
@@ -459,9 +458,17 @@
 /*****************************************************************************
  * Time handling
  ****************************************************************************/
+int orion5x_tclk;
+
+int __init orion5x_find_tclk(void)
+{
+	return 166666667;
+}
+
 static void orion5x_timer_init(void)
 {
-	orion_time_init(IRQ_ORION5X_BRIDGE, ORION5X_TCLK);
+	orion5x_tclk = orion5x_find_tclk();
+	orion_time_init(IRQ_ORION5X_BRIDGE, orion5x_tclk);
 }
 
 struct sys_timer orion5x_timer = {
@@ -514,7 +521,11 @@
 	u32 dev, rev;
 
 	orion5x_id(&dev, &rev, &dev_name);
-	printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, ORION5X_TCLK);
+	printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk);
+
+	orion5x_eth_shared_data.t_clk = orion5x_tclk;
+	orion5x_uart0_data[0].uartclk = orion5x_tclk;
+	orion5x_uart1_data[0].uartclk = orion5x_tclk;
 
 	/*
 	 * Setup Orion address map
diff --git a/arch/arm/mach-orion5x/common.h b/arch/arm/mach-orion5x/common.h
index e75bd70..c8598cc 100644
--- a/arch/arm/mach-orion5x/common.h
+++ b/arch/arm/mach-orion5x/common.h
@@ -10,6 +10,7 @@
 void orion5x_map_io(void);
 void orion5x_init_irq(void);
 void orion5x_init(void);
+extern int orion5x_tclk;
 extern struct sys_timer orion5x_timer;
 
 /*
diff --git a/arch/arm/mach-orion5x/include/mach/timex.h b/arch/arm/mach-orion5x/include/mach/timex.h
index e82e44d..4c69820 100644
--- a/arch/arm/mach-orion5x/include/mach/timex.h
+++ b/arch/arm/mach-orion5x/include/mach/timex.h
@@ -9,5 +9,3 @@
  */
 
 #define CLOCK_TICK_RATE		(100 * HZ)
-
-#define ORION5X_TCLK		166666667
diff --git a/arch/arm/mach-orion5x/kurobox_pro-setup.c b/arch/arm/mach-orion5x/kurobox_pro-setup.c
index cb72f1b..171ffaf 100644
--- a/arch/arm/mach-orion5x/kurobox_pro-setup.c
+++ b/arch/arm/mach-orion5x/kurobox_pro-setup.c
@@ -291,7 +291,7 @@
 	const unsigned char shutdownwait[]	= {0x00, 0x0c};
 	const unsigned char poweroff[]		= {0x00, 0x06};
 	/* 38400 baud divisor */
-	const unsigned divisor = ((ORION5X_TCLK + (8 * 38400)) / (16 * 38400));
+	const unsigned divisor = ((orion5x_tclk + (8 * 38400)) / (16 * 38400));
 
 	pr_info("%s: triggering power-off...\n", __func__);
 
diff --git a/arch/arm/mach-orion5x/tsx09-common.c b/arch/arm/mach-orion5x/tsx09-common.c
index 83feac3..5128da1 100644
--- a/arch/arm/mach-orion5x/tsx09-common.c
+++ b/arch/arm/mach-orion5x/tsx09-common.c
@@ -16,6 +16,7 @@
 #include <linux/timex.h>
 #include <linux/serial_reg.h>
 #include "tsx09-common.h"
+#include "common.h"
 
 /*****************************************************************************
  * QNAP TS-x09 specific power off method via UART1-attached PIC
@@ -26,7 +27,7 @@
 void qnap_tsx09_power_off(void)
 {
 	/* 19200 baud divisor */
-	const unsigned divisor = ((ORION5X_TCLK + (8 * 19200)) / (16 * 19200));
+	const unsigned divisor = ((orion5x_tclk + (8 * 19200)) / (16 * 19200));
 
 	pr_info("%s: triggering power-off...\n", __func__);