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| author | Vaibhav Hiremath <hvaibhav@ti.com> | 2013-03-14 21:11:16 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-03-24 12:49:05 -0400 |
| commit | 59dcf970d11ebff5d9f4bbbde79fda584e9e7ad4 (patch) | |
| tree | 0e7cd3d2c8410d6207c84c16fc6fd4721cbc987b /board/ti | |
| parent | 1e7e374b3577888ff6f9e3273fa0ad67e2dc45bf (diff) | |
| download | u-boot-59dcf970d11ebff5d9f4bbbde79fda584e9e7ad4.tar.gz u-boot-59dcf970d11ebff5d9f4bbbde79fda584e9e7ad4.tar.xz u-boot-59dcf970d11ebff5d9f4bbbde79fda584e9e7ad4.zip | |
am335x: Enable DDR PHY dynamic power down bit for DDR3 boards
Enable DDR PHY dynamic power down bit, which enables
powering down the IO receiver when not performing read.
This also helps in reducing overall power consumption in
low power states (suspend/standby).
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Satyanarayana, Sandhya <sandhya.satyanarayana@ti.com>
Cc: Tom Rini <trini@ti.com>
Reviewed-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'board/ti')
| -rw-r--r-- | board/ti/am335x/board.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/board/ti/am335x/board.c b/board/ti/am335x/board.c index f4b972b3e9..2e230f456f 100644 --- a/board/ti/am335x/board.c +++ b/board/ti/am335x/board.c @@ -251,7 +251,8 @@ static struct emif_regs ddr3_emif_reg_data = { .sdram_tim2 = MT41J128MJT125_EMIF_TIM2, .sdram_tim3 = MT41J128MJT125_EMIF_TIM3, .zq_config = MT41J128MJT125_ZQ_CFG, - .emif_ddr_phy_ctlr_1 = MT41J128MJT125_EMIF_READ_LATENCY, + .emif_ddr_phy_ctlr_1 = MT41J128MJT125_EMIF_READ_LATENCY | + PHY_EN_DYN_PWRDN, }; static struct emif_regs ddr3_evm_emif_reg_data = { @@ -261,7 +262,8 @@ static struct emif_regs ddr3_evm_emif_reg_data = { .sdram_tim2 = MT41J512M8RH125_EMIF_TIM2, .sdram_tim3 = MT41J512M8RH125_EMIF_TIM3, .zq_config = MT41J512M8RH125_ZQ_CFG, - .emif_ddr_phy_ctlr_1 = MT41J512M8RH125_EMIF_READ_LATENCY, + .emif_ddr_phy_ctlr_1 = MT41J512M8RH125_EMIF_READ_LATENCY | + PHY_EN_DYN_PWRDN, }; #endif |