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authorJagan Teki <jagan@amarulasolutions.com>2019-07-16 17:27:11 +0530
committerKever Yang <kever.yang@rock-chips.com>2019-07-20 23:59:44 +0800
commit6cbd2426b34e7430b0733ab9a912d378c027b647 (patch)
tree2774d9d1007de337b5608fa67628267e60024b9c /drivers
parentc716bf67f5eb54ed64538f7ce70b36da04c55352 (diff)
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ram: rk3399: Move mode_sel assignment
mode_sel assignment is based on dram type. In phy_io_config, already have vref setting based on the dram type, so move this mode_sel assignment on vref setting area. No functionality change. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/ram/rockchip/sdram_rk3399.c12
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c
index 3f20aba939..35de76adb3 100644
--- a/drivers/ram/rockchip/sdram_rk3399.c
+++ b/drivers/ram/rockchip/sdram_rk3399.c
@@ -205,6 +205,7 @@ static int phy_io_config(const struct chan_info *chan,
vref_value_dq = 0x1f;
vref_mode_ac = 0x6;
vref_value_ac = 0x1f;
+ mode_sel = 0x6;
} else if (params->base.dramtype == LPDDR3) {
if (params->base.odt == 1) {
vref_mode_dq = 0x5; /* LPDDR3 ODT */
@@ -265,12 +266,14 @@ static int phy_io_config(const struct chan_info *chan,
}
vref_mode_ac = 0x2;
vref_value_ac = 0x1f;
+ mode_sel = 0x0;
} else if (params->base.dramtype == DDR3) {
/* DDR3L */
vref_mode_dq = 0x1;
vref_value_dq = 0x1f;
vref_mode_ac = 0x1;
vref_value_ac = 0x1f;
+ mode_sel = 0x1;
} else {
debug("Unknown DRAM type.\n");
return -EINVAL;
@@ -292,15 +295,6 @@ static int phy_io_config(const struct chan_info *chan,
/* PHY_915 PHY_PAD_VREF_CTRL_AC 12bits offset_16 */
clrsetbits_le32(&denali_phy[915], 0xfff << 16, reg_value << 16);
- if (params->base.dramtype == LPDDR4)
- mode_sel = 0x6;
- else if (params->base.dramtype == LPDDR3)
- mode_sel = 0x0;
- else if (params->base.dramtype == DDR3)
- mode_sel = 0x1;
- else
- return -EINVAL;
-
/* PHY_924 PHY_PAD_FDBK_DRIVE */
clrsetbits_le32(&denali_phy[924], 0x7 << 15, mode_sel << 15);
/* PHY_926 PHY_PAD_DATA_DRIVE */