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arm: mach-omap2: am33xx: ddr: update value for ext_phy_ctrl_36

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for suspend/resume robustness

update value for ext_phy_ctrl_36 for suspend/resume robustness
with hardware leveling enabled.

Match recommended values from EMIF Tools app note:

http://www.ti.com/lit/an/sprac70/sprac70.pdf

Signed-off-by: Brad Griffis <bgriffis@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
This commit is contained in:
Brad Griffis 2019-04-29 09:59:32 +05:30 committed by Tom Rini
parent 7b5774e4bd
commit 1dbd9a7b17
1 changed files with 2 additions and 2 deletions
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4
arch/arm/mach-omap2/am33xx/ddr.c
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@ -311,8 +311,8 @@ static void ext_phy_settings_hwlvl(const struct emif_regs *regs, int nr)
writel(0x00000000, &emif_reg[nr]->emif_ddr_ext_phy_ctrl_34_shdw);
writel(0x00000000, &emif_reg[nr]->emif_ddr_ext_phy_ctrl_35);
writel(0x00000000, &emif_reg[nr]->emif_ddr_ext_phy_ctrl_35_shdw);
writel(0x000000FF, &emif_reg[nr]->emif_ddr_ext_phy_ctrl_36);
writel(0x000000FF, &emif_reg[nr]->emif_ddr_ext_phy_ctrl_36_shdw);
writel(0x00000077, &emif_reg[nr]->emif_ddr_ext_phy_ctrl_36);
writel(0x00000077, &emif_reg[nr]->emif_ddr_ext_phy_ctrl_36_shdw);
/*
* Sequence to ensure that the PHY is again in a known state after