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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> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Link: https://lore.kernel.org/r/20210604163043.12811-5-a-govindraju@ti.com
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@ -152,3 +152,17 @@ int board_late_init(void)
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return 0;
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}
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#endif
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#define CTRLMMR_USB0_PHY_CTRL 0x43004008
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#define CORE_VOLTAGE 0x80000000
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#ifdef CONFIG_SPL_BOARD_INIT
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void spl_board_init(void)
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{
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u32 val;
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/* Set USB PHY core voltage to 0.85V */
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val = readl(CTRLMMR_USB0_PHY_CTRL);
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val &= ~(CORE_VOLTAGE);
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writel(val, CTRLMMR_USB0_PHY_CTRL);
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}
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#endif
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