diff --git a/arch/arm/mach-imx/clock-imx21.c b/arch/arm/mach-imx/clock-imx21.c
index ee15d8c..e04c264 100644
--- a/arch/arm/mach-imx/clock-imx21.c
+++ b/arch/arm/mach-imx/clock-imx21.c
@@ -1231,6 +1231,9 @@ int __init mx21_clocks_init(unsigned long lref, unsigned long href)
 
 #if defined(CONFIG_DEBUG_LL) && !defined(CONFIG_DEBUG_ICEDCC)
 	clk_enable(&uart_clk[0]);
+	clk_enable(&uart_clk[1]);
+	clk_enable(&uart_clk[2]);
+	clk_enable(&uart_clk[3]);
 #endif
 
 	mxc_timer_init(&gpt_clk[0], MX21_IO_ADDRESS(MX21_GPT1_BASE_ADDR),
diff --git a/arch/arm/mach-imx/clock-imx25.c b/arch/arm/mach-imx/clock-imx25.c
index e63e235..9c3e655 100644
--- a/arch/arm/mach-imx/clock-imx25.c
+++ b/arch/arm/mach-imx/clock-imx25.c
@@ -325,6 +325,10 @@ int __init mx25_clocks_init(void)
 	__raw_writel((1 << 5), CRM_BASE + CCM_CGCR2);
 #if defined(CONFIG_DEBUG_LL) && !defined(CONFIG_DEBUG_ICEDCC)
 	clk_enable(&uart1_clk);
+	clk_enable(&uart2_clk);
+	clk_enable(&uart3_clk);
+	clk_enable(&uart4_clk);
+	clk_enable(&uart5_clk);
 #endif
 
 	/* Clock source for lcdc and csi is upll */
diff --git a/arch/arm/mach-imx/clock-imx27.c b/arch/arm/mach-imx/clock-imx27.c
index 6912b82..561f88e 100644
--- a/arch/arm/mach-imx/clock-imx27.c
+++ b/arch/arm/mach-imx/clock-imx27.c
@@ -754,6 +754,11 @@ int __init mx27_clocks_init(unsigned long fref)
 
 #if defined(CONFIG_DEBUG_LL) && !defined(CONFIG_DEBUG_ICEDCC)
 	clk_enable(&uart1_clk);
+	clk_enable(&uart2_clk);
+	clk_enable(&uart3_clk);
+	clk_enable(&uart4_clk);
+	clk_enable(&uart5_clk);
+	clk_enable(&uart6_clk);
 #endif
 
 	mxc_timer_init(&gpt1_clk, MX27_IO_ADDRESS(MX27_GPT1_BASE_ADDR),
diff --git a/arch/arm/mach-imx/clock-imx35.c b/arch/arm/mach-imx/clock-imx35.c
index 88b62a0..4957778 100644
--- a/arch/arm/mach-imx/clock-imx35.c
+++ b/arch/arm/mach-imx/clock-imx35.c
@@ -510,7 +510,7 @@ int __init mx35_clocks_init()
 	unsigned int cgr2 = 3 << 26, cgr3 = 0;
 
 #if defined(CONFIG_DEBUG_LL) && !defined(CONFIG_DEBUG_ICEDCC)
-	cgr2 |= 3 << 16;
+	cgr2 |= 3 << 16 | 3 << 18 | 3 << 20;
 #endif
 
 	clkdev_add_table(lookups, ARRAY_SIZE(lookups));