diff options
| author | Baruch Siach <baruch@tkos.co.il> | 2019-07-10 18:23:04 +0300 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2019-07-11 10:58:03 +0200 |
| commit | cc66ebdeeca5c4ed095bbd521b748bb009d99728 (patch) | |
| tree | cbf12ec006fcf57060d01daa7a3a1503a88a1008 /arch/arm/mach-mvebu/spl.c | |
| parent | fd9d70d7383d7f3afa54af4308c78ce1c99dbddb (diff) | |
arm: mvebu: set 38x and 39x AVS on lower frequency
Reduce Auto Voltage Scaling VDD limit when core frequency is lower than
1600MHz. This reduces core voltage level from 1.25V to 1.15V, which
saves power.
The code is taken from Marvell's U-Boot 2013.01 revision 18.06.
Reviewed-by: Chris Packham <judge.packham@gmail.com>
Tested-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'arch/arm/mach-mvebu/spl.c')
| -rw-r--r-- | arch/arm/mach-mvebu/spl.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mach-mvebu/spl.c b/arch/arm/mach-mvebu/spl.c index d54de51956..3cb27b7f4b 100644 --- a/arch/arm/mach-mvebu/spl.c +++ b/arch/arm/mach-mvebu/spl.c @@ -126,6 +126,9 @@ void board_init_f(ulong dummy) ddr3_init(); #endif + /* Initialize Auto Voltage Scaling */ + mv_avs_init(); + /* * Return to the BootROM to continue the Marvell xmodem * UART boot protocol. As initiated by the kwboot tool. |