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/include | |
| 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/include')
| -rw-r--r-- | arch/arm/mach-mvebu/include/mach/cpu.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/mach-mvebu/include/mach/cpu.h b/arch/arm/mach-mvebu/include/mach/cpu.h index e6140d6729..2e2d72aac8 100644 --- a/arch/arm/mach-mvebu/include/mach/cpu.h +++ b/arch/arm/mach-mvebu/include/mach/cpu.h @@ -163,6 +163,13 @@ int serdes_phy_config(void); */ int ddr3_init(void); +/* Auto Voltage Scaling */ +#if defined(CONFIG_ARMADA_38X) || defined(CONFIG_ARMADA_39X) +void mv_avs_init(void); +#else +static inline void mv_avs_init(void) {} +#endif + /* * get_ref_clk * |