--- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
@@ -963,6 +963,7 @@ static int enable_edo_mode(struct gpmi_n
 	unsigned long rate;
 	int ret;
 
+printk("%s(%d): enable_edo_mode()\n", __FILE__, __LINE__);
 	feature = kzalloc(ONFI_SUBFEATURE_PARAM_LEN, GFP_KERNEL);
 	if (!feature)
 		return -ENOMEM;
@@ -988,6 +989,7 @@ static int enable_edo_mode(struct gpmi_n
 	/* [3] set the main IO clock, 100MHz for mode 5, 80MHz for mode 4. */
 	rate = (mode == 5) ? 100000000 : 80000000;
 	clk_set_rate(r->clock[0], rate);
+printk("  clk_get_rate(r->clock[0])=%ld\n", clk_get_rate(r->clock[0]));
 
 	/* Let the gpmi_begin() re-compute the timing again. */
 	this->flags &= ~GPMI_TIMING_INIT_OK;
@@ -1049,6 +1051,7 @@ void gpmi_begin(struct gpmi_nand_data *t
 		return;
 	this->flags |= GPMI_TIMING_INIT_OK;
 
+printk("%s(%d): gpmi_begin()\n", __FILE__, __LINE__);
 	if (this->flags & GPMI_ASYNC_EDO_ENABLED)
 		gpmi_compute_edo_timing(this, &hw);
 	else
@@ -1060,10 +1063,12 @@ void gpmi_begin(struct gpmi_nand_data *t
 		BF_GPMI_TIMING0_DATA_SETUP(hw.data_setup_in_cycles);
 
 	writel(reg, gpmi_regs + HW_GPMI_TIMING0);
+printk("  HW_GPMI_TIMING0=0x%08x\n", readl(gpmi_regs + HW_GPMI_TIMING0));
 
 	/* [2] Set HW_GPMI_TIMING1 */
 	writel(BF_GPMI_TIMING1_BUSY_TIMEOUT(hw.device_busy_timeout),
 		gpmi_regs + HW_GPMI_TIMING1);
+printk("  HW_GPMI_TIMING1=0x%08x\n", readl(gpmi_regs + HW_GPMI_TIMING1));
 
 	/* [3] The following code is to set the HW_GPMI_CTRL1. */
 
@@ -1088,6 +1093,7 @@ void gpmi_begin(struct gpmi_nand_data *t
 		| BF_GPMI_CTRL1_RDN_DELAY(hw.sample_delay_factor);
 
 	writel(reg, gpmi_regs + HW_GPMI_CTRL1_SET);
+printk("  HW_GPMI_CTRL1_SET=0x%08x\n", readl(gpmi_regs + HW_GPMI_CTRL1_SET));
 
 	/* At last, we enable the DLL. */
 	writel(BM_GPMI_CTRL1_DLL_ENABLE, gpmi_regs + HW_GPMI_CTRL1_SET);
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -804,6 +804,7 @@ static int gpmi_get_clks(struct gpmi_nan
 	struct clk *clk;
 	int err, i;
 
+printk("%s(%d): gpmi_get_clks()\n", __FILE__, __LINE__);
 	for (i = 0; i < this->devdata->clks_count; i++) {
 		clk = devm_clk_get(this->dev, this->devdata->clks[i]);
 		if (IS_ERR(clk)) {
@@ -822,6 +823,7 @@ static int gpmi_get_clks(struct gpmi_nan
 		 * Synchronous Mode, you should change the clock as you need.
 		 */
 		clk_set_rate(r->clock[0], 22000000);
+printk("  clk_get_rate(r->clock[0])=%ld\n", clk_get_rate(r->clock[0]));
 
 	return 0;