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board: ti: am64x: Set the core voltage of USB PHY to 0.85V

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Set the core voltage of USB PHY in AM64x to 0.85V in spl_board_init().

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210604163043.12811-5-a-govindraju@ti.com
This commit is contained in:
Aswath Govindraju 2021-06-04 22:00:34 +05:30 • committed by Lokesh Vutla
parent 669a03e0ff
commit 397d7b0fae
1 changed files with 14 additions and 0 deletions

14
board/ti/am64x/evm.c
View file

@ -152,3 +152,17 @@ int board_late_init(void)
return 0;
}
#endif
#define CTRLMMR_USB0_PHY_CTRL 0x43004008
#define CORE_VOLTAGE 0x80000000
#ifdef CONFIG_SPL_BOARD_INIT
void spl_board_init(void)
{
u32 val;
/* Set USB PHY core voltage to 0.85V */
val = readl(CTRLMMR_USB0_PHY_CTRL);
val &= ~(CORE_VOLTAGE);
writel(val, CTRLMMR_USB0_PHY_CTRL);
}
#endif