nand: improve nfc clock

PD#156734: nand: improve nfc clock base on pad driver strength
set level1

Change-Id: I1a9fd710e415a064572063292ef569bf67e527a4
Signed-off-by: Liang Yang <liang.yang@amlogic.com>

diff --git a/drivers/amlogic/mtd/m3_nand.c b/drivers/amlogic/mtd/m3_nand.c
index 07367c6..47760c1 100644 (file)
--- a/drivers/amlogic/mtd/m3_nand.c
+++ b/drivers/amlogic/mtd/m3_nand.c
@@ -348,6 +348,7 @@ static void m3_nand_hw_init(struct aml_nand_chip *aml_chip)
 
        aml_nfc_clk_init(controller);
 
+       /*
        if (get_cpu_type() == MESON_CPU_MAJOR_ID_G12A) {
                sys_clk_rate = 24;
                bus_cycle  = 4;
@@ -357,6 +358,10 @@ static void m3_nand_hw_init(struct aml_nand_chip *aml_chip)
                bus_cycle  = 6;
                bus_timing = bus_cycle + 1;
        }
+       */
+       sys_clk_rate = 200;
+       bus_cycle  = 6;
+       bus_timing = bus_cycle + 1;
        get_sys_clk_rate_mtd(controller, &sys_clk_rate);
 
        NFC_SET_CFG(controller, 0);
@@ -380,6 +385,7 @@ static void m3_nand_adjust_timing(struct aml_nand_chip *aml_chip)
        else
                sys_clk_rate = 250;
 
+       /*
        if (get_cpu_type() == MESON_CPU_MAJOR_ID_G12A) {
                sys_clk_rate = 24;
                bus_cycle  = 4;
@@ -388,6 +394,9 @@ static void m3_nand_adjust_timing(struct aml_nand_chip *aml_chip)
                bus_cycle  = 6;
                bus_timing = bus_cycle + 1;
        }
+       */
+       bus_cycle  = 6;
+       bus_timing = bus_cycle + 1;
        get_sys_clk_rate_mtd(controller, &sys_clk_rate);
 
        NFC_SET_CFG(controller, 0);