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ram: rk3399: Update lpddr4 vref_mode_ac
[platform/kernel/u-boot.git]
/
drivers
/
ram
/
rockchip
/
sdram_rk3399.c
diff --git
a/drivers/ram/rockchip/sdram_rk3399.c
b/drivers/ram/rockchip/sdram_rk3399.c
index
84a09fe
..
da94bbe
100644
(file)
--- a/
drivers/ram/rockchip/sdram_rk3399.c
+++ b/
drivers/ram/rockchip/sdram_rk3399.c
@@
-366,7
+366,8
@@
static int phy_io_config(const struct chan_info *chan,
vref_value_dq = (rd_vref - 15300) / 521;
}
vref_mode_ac = 0x6;
- vref_value_ac = 0x1f;
+ /* VDDQ/3/2=16.8% */
+ vref_value_ac = 0x3;
} else if (params->base.dramtype == LPDDR3) {
if (params->base.odt == 1) {
vref_mode_dq = 0x5; /* LPDDR3 ODT */