[PATCH 04/10] board: ti: am64x: Set the core voltage of USB PHY to 0.85V

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 --- board/ti/am64x/evm.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)

diff --git a/board/ti/am64x/evm.c b/board/ti/am64x/evm.c index 35cd9e027c04..cdbb9a87bc44 100644 --- a/board/ti/am64x/evm.c +++ b/board/ti/am64x/evm.c @@ -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