GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/arch/arm/mach-uniphier/clk/clk-ld11.c

@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2016 Socionext Inc.
+ */
+
+#include <common.h>
+#include <spl.h>
+#include <linux/bitops.h>
+#include <linux/io.h>
+
+#include "../init.h"
+#include "../sc64-regs.h"
+#include "../sg-regs.h"
+
+#define SDCTRL_EMMC_HW_RESET	0x59810280
+
+void uniphier_ld11_clk_init(void)
+{
+	/* if booted from a device other than USB, without stand-by MPU */
+	if ((readl(sg_base + SG_PINMON0) & BIT(27)) &&
+	    uniphier_boot_device_raw() != BOOT_DEVICE_USB) {
+		writel(1, sg_base + SG_ETPHYPSHUT);
+		writel(1, sg_base + SG_ETPHYCNT);
+
+		udelay(1); /* wait for regulator level 1.1V -> 2.5V */
+
+		writel(3, sg_base + SG_ETPHYCNT);
+		writel(3, sg_base + SG_ETPHYPSHUT);
+		writel(7, sg_base + SG_ETPHYCNT);
+	}
+
+	/* TODO: use "mmc-pwrseq-emmc" */
+	writel(1, SDCTRL_EMMC_HW_RESET);
+
+#ifdef CONFIG_USB_EHCI_HCD
+	{
+		int ch;
+
+		for (ch = 0; ch < 3; ch++) {
+			void __iomem *phyctrl = sg_base + SG_USBPHYCTRL;
+
+			writel(0x82280600, phyctrl + 8 * ch);
+			writel(0x00000106, phyctrl + 8 * ch + 4);
+		}
+	}
+#endif
+}