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path: root/drivers/phy/sandbox-phy.c
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Diffstat (limited to 'drivers/phy/sandbox-phy.c')
-rw-r--r--drivers/phy/sandbox-phy.c108
1 files changed, 108 insertions, 0 deletions
diff --git a/drivers/phy/sandbox-phy.c b/drivers/phy/sandbox-phy.c
new file mode 100644
index 00000000000..9ad820c24c9
--- /dev/null
+++ b/drivers/phy/sandbox-phy.c
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
+ * Written by Jean-Jacques Hiblot <jjhiblot@ti.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <generic-phy.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+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 = fdtdec_get_bool(gd->fdt_blob, dev_of_offset(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),
+};