diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
index 7572f19..92e8fa6 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
+++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
@@ -163,6 +163,83 @@ config SYS_HAS_SERDES
 
 endmenu
 
+menu "Layerscape clock tree configuration"
+	depends on FSL_LSCH2 || FSL_LSCH3
+
+config SYS_FSL_CLK
+	bool "Enable clock tree initialization"
+	default y
+
+config CLUSTER_CLK_FREQ
+	int "Reference clock of core cluster"
+	depends on ARCH_LS1012A
+	default 100000000
+	help
+	  This number is the reference clock frequency of core PLL.
+	  For most platforms, the core PLL and Platform PLL have the same
+	  reference clock, but for some platforms, LS1012A for instance,
+	  they are provided sepatately.
+
+config SYS_FSL_PCLK_DIV
+	int "Platform clock divider"
+	default 1 if ARCH_LS1043A
+	default 1 if ARCH_LS1046A
+	default 2
+	help
+	  This is the divider that is used to derive Platform clock from
+	  Platform PLL, in another word:
+		Platform_clk = Platform_PLL_freq / this_divider
+
+config SYS_FSL_DSPI_CLK_DIV
+	int "DSPI clock divider"
+	default 1 if ARCH_LS1043A
+	default 2
+	help
+	  This is the divider that is used to derive DSPI clock from Platform
+	  PLL, in another word DSPI_clk = Platform_PLL_freq / this_divider.
+
+config SYS_FSL_DUART_CLK_DIV
+	int "DUART clock divider"
+	default 1 if ARCH_LS1043A
+	default 2
+	help
+	  This is the divider that is used to derive DUART clock from Platform
+	  clock, in another word DUART_clk = Platform_clk / this_divider.
+
+config SYS_FSL_I2C_CLK_DIV
+	int "I2C clock divider"
+	default 1 if ARCH_LS1043A
+	default 2
+	help
+	  This is the divider that is used to derive I2C clock from Platform
+	  clock, in another word I2C_clk = Platform_clk / this_divider.
+
+config SYS_FSL_IFC_CLK_DIV
+	int "IFC clock divider"
+	default 1 if ARCH_LS1043A
+	default 2
+	help
+	  This is the divider that is used to derive IFC clock from Platform
+	  clock, in another word IFC_clk = Platform_clk / this_divider.
+
+config SYS_FSL_LPUART_CLK_DIV
+	int "LPUART clock divider"
+	default 1 if ARCH_LS1043A
+	default 2
+	help
+	  This is the divider that is used to derive LPUART clock from Platform
+	  clock, in another word LPUART_clk = Platform_clk / this_divider.
+
+config SYS_FSL_SDHC_CLK_DIV
+	int "SDHC clock divider"
+	default 1 if ARCH_LS1043A
+	default 1 if ARCH_LS1012A
+	default 2
+	help
+	  This is the divider that is used to derive SDHC clock from Platform
+	  clock, in another word SDHC_clk = Platform_clk / this_divider.
+endmenu
+
 config SYS_FSL_ERRATUM_A008336
 	bool
 
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
index 467d9af..3bdeb0e 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
@@ -345,8 +345,9 @@ int print_cpuinfo(void)
 		       (type == TY_ITYP_VER_A72 ? "A72" : "   "))),
 		       strmhz(buf, sysinfo.freq_processor[core]));
 	}
+	/* Display platform clock as Bus frequency. */
 	printf("\n       Bus:      %-4s MHz  ",
-	       strmhz(buf, sysinfo.freq_systembus));
+	       strmhz(buf, sysinfo.freq_systembus / CONFIG_SYS_FSL_PCLK_DIV));
 	printf("DDR:      %-4s MT/s", strmhz(buf, sysinfo.freq_ddrbus));
 #ifdef CONFIG_SYS_DPAA_FMAN
 	printf("  FMAN:     %-4s MHz", strmhz(buf, sysinfo.freq_fman[0]));
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c b/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c
index 55005f0..3da7037 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c
@@ -52,22 +52,28 @@ void get_sys_info(struct sys_info *sys_info)
 	uint freq_c_pll[CONFIG_SYS_FSL_NUM_CC_PLLS];
 	uint ratio[CONFIG_SYS_FSL_NUM_CC_PLLS];
 	unsigned long sysclk = CONFIG_SYS_CLK_FREQ;
+	unsigned long cluster_clk;
 
 	sys_info->freq_systembus = sysclk;
+#ifndef CONFIG_CLUSTER_CLK_FREQ
+#define CONFIG_CLUSTER_CLK_FREQ	CONFIG_SYS_CLK_FREQ
+#endif
+	cluster_clk = CONFIG_CLUSTER_CLK_FREQ;
+
 #ifdef CONFIG_DDR_CLK_FREQ
 	sys_info->freq_ddrbus = CONFIG_DDR_CLK_FREQ;
 #else
 	sys_info->freq_ddrbus = sysclk;
 #endif
 
-#ifdef CONFIG_ARCH_LS1012A
-	sys_info->freq_ddrbus *= (gur_in32(&gur->rcwsr[0]) >>
-			FSL_CHASSIS2_RCWSR0_SYS_PLL_RAT_SHIFT) &
-			FSL_CHASSIS2_RCWSR0_SYS_PLL_RAT_MASK;
-#else
+	/* The freq_systembus is used to record frequency of platform PLL */
 	sys_info->freq_systembus *= (gur_in32(&gur->rcwsr[0]) >>
 			FSL_CHASSIS2_RCWSR0_SYS_PLL_RAT_SHIFT) &
 			FSL_CHASSIS2_RCWSR0_SYS_PLL_RAT_MASK;
+
+#ifdef CONFIG_ARCH_LS1012A
+	sys_info->freq_ddrbus = 2 * sys_info->freq_systembus;
+#else
 	sys_info->freq_ddrbus *= (gur_in32(&gur->rcwsr[0]) >>
 			FSL_CHASSIS2_RCWSR0_MEM_PLL_RAT_SHIFT) &
 			FSL_CHASSIS2_RCWSR0_MEM_PLL_RAT_MASK;
@@ -76,7 +82,7 @@ void get_sys_info(struct sys_info *sys_info)
 	for (i = 0; i < CONFIG_SYS_FSL_NUM_CC_PLLS; i++) {
 		ratio[i] = (in_be32(&clk->pllcgsr[i].pllcngsr) >> 1) & 0xff;
 		if (ratio[i] > 4)
-			freq_c_pll[i] = sysclk * ratio[i];
+			freq_c_pll[i] = cluster_clk * ratio[i];
 		else
 			freq_c_pll[i] = sys_info->freq_systembus * ratio[i];
 	}
@@ -91,11 +97,6 @@ void get_sys_info(struct sys_info *sys_info)
 			freq_c_pll[cplx_pll] / core_cplx_pll_div[c_pll_sel];
 	}
 
-#ifdef CONFIG_ARCH_LS1012A
-	sys_info->freq_systembus = sys_info->freq_ddrbus / 2;
-	sys_info->freq_ddrbus *= 2;
-#endif
-
 #define HWA_CGA_M1_CLK_SEL	0xe0000000
 #define HWA_CGA_M1_CLK_SHIFT	29
 #ifdef CONFIG_SYS_DPAA_FMAN
@@ -148,7 +149,9 @@ void get_sys_info(struct sys_info *sys_info)
 		break;
 	}
 #else
-	sys_info->freq_sdhc = sys_info->freq_systembus;
+	sys_info->freq_sdhc = (sys_info->freq_systembus /
+				CONFIG_SYS_FSL_PCLK_DIV) /
+				CONFIG_SYS_FSL_SDHC_CLK_DIV;
 #endif
 #endif
 
@@ -166,7 +169,7 @@ int get_clocks(void)
 
 	get_sys_info(&sys_info);
 	gd->cpu_clk = sys_info.freq_processor[0];
-	gd->bus_clk = sys_info.freq_systembus;
+	gd->bus_clk = sys_info.freq_systembus / CONFIG_SYS_FSL_PCLK_DIV;
 	gd->mem_clk = sys_info.freq_ddrbus;
 
 #ifdef CONFIG_FSL_ESDHC
@@ -179,41 +182,73 @@ int get_clocks(void)
 		return 1;
 }
 
+/********************************************
+ * get_bus_freq
+ * return platform clock in Hz
+ *********************************************/
 ulong get_bus_freq(ulong dummy)
 {
+	if (!gd->bus_clk)
+		get_clocks();
+
 	return gd->bus_clk;
 }
 
 ulong get_ddr_freq(ulong dummy)
 {
+	if (!gd->mem_clk)
+		get_clocks();
+
 	return gd->mem_clk;
 }
 
 #ifdef CONFIG_FSL_ESDHC
 int get_sdhc_freq(ulong dummy)
 {
+	if (!gd->arch.sdhc_clk)
+		get_clocks();
+
 	return gd->arch.sdhc_clk;
 }
 #endif
 
 int get_serial_clock(void)
 {
-	return gd->bus_clk;
+	return get_bus_freq(0) / CONFIG_SYS_FSL_DUART_CLK_DIV;
+}
+
+int get_i2c_freq(ulong dummy)
+{
+	return get_bus_freq(0) / CONFIG_SYS_FSL_I2C_CLK_DIV;
+}
+
+int get_dspi_freq(ulong dummy)
+{
+	return get_bus_freq(0) / CONFIG_SYS_FSL_DSPI_CLK_DIV;
 }
 
+#ifdef CONFIG_FSL_LPUART
+int get_uart_freq(ulong dummy)
+{
+	return get_bus_freq(0) / CONFIG_SYS_FSL_LPUART_CLK_DIV;
+}
+#endif
+
 unsigned int mxc_get_clock(enum mxc_clock clk)
 {
 	switch (clk) {
 	case MXC_I2C_CLK:
-		return get_bus_freq(0);
+		return get_i2c_freq(0);
 #if defined(CONFIG_FSL_ESDHC)
 	case MXC_ESDHC_CLK:
 		return get_sdhc_freq(0);
 #endif
 	case MXC_DSPI_CLK:
-		return get_bus_freq(0);
+		return get_dspi_freq(0);
+#ifdef CONFIG_FSL_LPUART
 	case MXC_UART_CLK:
-		return get_bus_freq(0);
+		return get_uart_freq(0);
+#endif
 	default:
 		printf("Unsupported clock\n");
 	}
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
index b3cfd89..6ace3da 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
@@ -137,6 +137,7 @@ CONFIG_SYS_CCSRBAR_PHYS_LOW and/or CONFIG_SYS_CCSRBAR_PHYS_HIGH instead."
 
 struct sys_info {
 	unsigned long freq_processor[CONFIG_MAX_CPUS];
+	/* frequency of platform PLL */
 	unsigned long freq_systembus;
 	unsigned long freq_ddrbus;
 	unsigned long freq_localbus;
diff --git a/include/configs/ls1012a_common.h b/include/configs/ls1012a_common.h
index 20f0c61..910835e 100644
--- a/include/configs/ls1012a_common.h
+++ b/include/configs/ls1012a_common.h
@@ -19,9 +19,7 @@
 
 #define CONFIG_SYS_TEXT_BASE		0x40100000
 
-#define CONFIG_SYS_FSL_CLK
-#define CONFIG_SYS_CLK_FREQ		100000000
-#define CONFIG_DDR_CLK_FREQ		125000000
+#define CONFIG_SYS_CLK_FREQ		125000000
 
 #define CONFIG_SKIP_LOWLEVEL_INIT
 #define CONFIG_BOARD_EARLY_INIT_F	1
@@ -82,7 +80,7 @@
 #define CONFIG_CONS_INDEX       1
 #define CONFIG_SYS_NS16550_SERIAL
 #define CONFIG_SYS_NS16550_REG_SIZE     1
-#define CONFIG_SYS_NS16550_CLK          (get_bus_freq(0)/2)
+#define CONFIG_SYS_NS16550_CLK          (get_serial_clock())
 
 #define CONFIG_BAUDRATE			115200
 #define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
diff --git a/include/configs/ls1043a_common.h b/include/configs/ls1043a_common.h
index 740d2d6..47b6ef7 100644
--- a/include/configs/ls1043a_common.h
+++ b/include/configs/ls1043a_common.h
@@ -11,7 +11,6 @@
 #define CONFIG_FSL_LAYERSCAPE
 #define CONFIG_LS1043A
 #define CONFIG_MP
-#define CONFIG_SYS_FSL_CLK
 #define CONFIG_GICV2
 
 #include <asm/arch/config.h>
@@ -42,7 +41,7 @@
 #define CONFIG_CONS_INDEX		1
 #define CONFIG_SYS_NS16550_SERIAL
 #define CONFIG_SYS_NS16550_REG_SIZE	1
-#define CONFIG_SYS_NS16550_CLK		(get_bus_freq(0))
+#define CONFIG_SYS_NS16550_CLK          (get_serial_clock())
 
 #define CONFIG_BAUDRATE			115200
 #define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
diff --git a/include/configs/ls1046a_common.h b/include/configs/ls1046a_common.h
index 40e6af8..4a910d1 100644
--- a/include/configs/ls1046a_common.h
+++ b/include/configs/ls1046a_common.h
@@ -10,7 +10,6 @@
 #define CONFIG_REMAKE_ELF
 #define CONFIG_FSL_LAYERSCAPE
 #define CONFIG_MP
-#define CONFIG_SYS_FSL_CLK
 #define CONFIG_GICV2
 
 #include <asm/arch/config.h>
@@ -41,7 +40,7 @@
 #define CONFIG_CONS_INDEX		1
 #define CONFIG_SYS_NS16550_SERIAL
 #define CONFIG_SYS_NS16550_REG_SIZE	1
-#define CONFIG_SYS_NS16550_CLK		(get_bus_freq(0)/2)
+#define CONFIG_SYS_NS16550_CLK          (get_serial_clock())
 
 #define CONFIG_BAUDRATE			115200
 #define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
diff --git a/include/configs/ls2080aqds.h b/include/configs/ls2080aqds.h
index 5a54c1f..c39e9cf 100644
--- a/include/configs/ls2080aqds.h
+++ b/include/configs/ls2080aqds.h
@@ -14,8 +14,6 @@ unsigned long get_board_sys_clk(void);
 unsigned long get_board_ddr_clk(void);
 #endif
 
-#define CONFIG_SYS_FSL_CLK
-
 #ifdef CONFIG_FSL_QSPI
 #define CONFIG_SYS_NO_FLASH
 #undef CONFIG_CMD_IMLS
diff --git a/include/configs/ls2080ardb.h b/include/configs/ls2080ardb.h
index 7f78fd8..5626d88 100644
--- a/include/configs/ls2080ardb.h
+++ b/include/configs/ls2080ardb.h
@@ -32,7 +32,6 @@
 unsigned long get_board_sys_clk(void);
 #endif
 
-#define CONFIG_SYS_FSL_CLK
 #define CONFIG_SYS_CLK_FREQ		get_board_sys_clk()
 #define CONFIG_DDR_CLK_FREQ		133333333
 #define COUNTER_FREQUENCY_REAL		(CONFIG_SYS_CLK_FREQ/4)