From: Aswath Govindraju <a-govindraju@ti.com>
Date: Fri, 4 Jun 2021 16:30:34 +0000 (+0530)
Subject: board: ti: am64x: Set the core voltage of USB PHY to 0.85V
X-Git-Url: http://git.dujemihanovic.xyz/img/sics.gif?a=commitdiff_plain;h=397d7b0faea0ddd36f45c63ee728e6e18b3f8673;p=u-boot.git

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
---

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