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nand: improve nfc clock

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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>
This commit is contained in:
Liang Yang
2018-02-13 13:23:50 +08:00
committed by Yixun Lan
parent ee49f5c606
commit 57386ea831
1 changed files with 9 additions and 0 deletions
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9
drivers/amlogic/mtd/m3_nand.c
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@@ -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);