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ARM: AM43xx: Enable DDR dynamic IO power down for DDR3

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This patch enables dynamically powering down the
IO receiver when not performing a read on DDR3 board.
This optimizes both active and standby power consumption.
This is derived from a patch that is done on AM335x[1]

[1] http://arago-project.org/git/projects/?p=u-boot-am33x.git;a=commit;h=6a9ee4bc72ece53fabf01825605fba3d71d5feb2

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
master
Lokesh Vutla 11 years ago committed by Tom Rini
parent e37e954eba
commit 0df8afdf10
1 changed files with 1 additions and 1 deletions
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  1. 2
      board/ti/am43xx/board.c

2
board/ti/am43xx/board.c
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@ -188,7 +188,7 @@ const struct ctrl_ioregs ioregs_ddr3 = {
.dt1ioctl = DDR3_DATA0_IOCTRL_VALUE, .dt1ioctl = DDR3_DATA0_IOCTRL_VALUE,
.dt2ioctrl = DDR3_DATA0_IOCTRL_VALUE, .dt2ioctrl = DDR3_DATA0_IOCTRL_VALUE,
.dt3ioctrl = DDR3_DATA0_IOCTRL_VALUE, .dt3ioctrl = DDR3_DATA0_IOCTRL_VALUE,
.emif_sdram_config_ext = 0x0043, .emif_sdram_config_ext = 0x0143,
}; };
const struct emif_regs ddr3_emif_regs_400Mhz = { const struct emif_regs ddr3_emif_regs_400Mhz = {

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