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

source/bootloader/u-boot-2020.01/drivers/phy/sandbox-phy.c

@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
+ * Written by Jean-Jacques Hiblot  <jjhiblot@ti.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <generic-phy.h>
+
+struct sandbox_phy_priv {
+	bool initialized;
+	bool on;
+	bool broken;
+};
+
+static int sandbox_phy_power_on(struct phy *phy)
+{
+	struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);
+
+	if (!priv->initialized)
+		return -EIO;
+
+	if (priv->broken)
+		return -EIO;
+
+	priv->on = true;
+
+	return 0;
+}
+
+static int sandbox_phy_power_off(struct phy *phy)
+{
+	struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);
+
+	if (!priv->initialized)
+		return -EIO;
+
+	if (priv->broken)
+		return -EIO;
+
+	/*
+	 * for validation purpose, let's says that power off
+	 * works only for PHY 0
+	 */
+	if (phy->id)
+		return -EIO;
+
+	priv->on = false;
+
+	return 0;
+}
+
+static int sandbox_phy_init(struct phy *phy)
+{
+	struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);
+
+	priv->initialized = true;
+	priv->on = true;
+
+	return 0;
+}
+
+static int sandbox_phy_exit(struct phy *phy)
+{
+	struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);
+
+	priv->initialized = false;
+	priv->on = false;
+
+	return 0;
+}
+
+static int sandbox_phy_probe(struct udevice *dev)
+{
+	struct sandbox_phy_priv *priv = dev_get_priv(dev);
+
+	priv->initialized = false;
+	priv->on = false;
+	priv->broken = dev_read_bool(dev, "broken");
+
+	return 0;
+}
+
+static struct phy_ops sandbox_phy_ops = {
+	.power_on = sandbox_phy_power_on,
+	.power_off = sandbox_phy_power_off,
+	.init = sandbox_phy_init,
+	.exit = sandbox_phy_exit,
+};
+
+static const struct udevice_id sandbox_phy_ids[] = {
+	{ .compatible = "sandbox,phy" },
+	{ }
+};
+
+U_BOOT_DRIVER(phy_sandbox) = {
+	.name		= "phy_sandbox",
+	.id		= UCLASS_PHY,
+	.of_match	= sandbox_phy_ids,
+	.ops		= &sandbox_phy_ops,
+	.probe		= sandbox_phy_probe,
+	.priv_auto_alloc_size = sizeof(struct sandbox_phy_priv),
+};