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-rw-r--r--board/ti/am64x/evm.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/board/ti/am64x/evm.c b/board/ti/am64x/evm.c
index 35cd9e027c..cdbb9a87bc 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