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

source/bootloader/u-boot-2020.01/drivers/net/phy/micrel_ksz8xxx.c

@@ -0,0 +1,217 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Micrel PHY drivers
+ *
+ * Copyright 2010-2011 Freescale Semiconductor, Inc.
+ * author Andy Fleming
+ * (C) 2012 NetModule AG, David Andrey, added KSZ9031
+ */
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <fdtdec.h>
+#include <micrel.h>
+#include <phy.h>
+
+static struct phy_driver KSZ804_driver = {
+	.name = "Micrel KSZ804",
+	.uid = 0x221510,
+	.mask = 0xfffff0,
+	.features = PHY_BASIC_FEATURES,
+	.config = &genphy_config,
+	.startup = &genphy_startup,
+	.shutdown = &genphy_shutdown,
+};
+
+#define MII_KSZPHY_OMSO		0x16
+#define KSZPHY_OMSO_FACTORY_TEST BIT(15)
+#define KSZPHY_OMSO_B_CAST_OFF	(1 << 9)
+
+static int ksz_genconfig_bcastoff(struct phy_device *phydev)
+{
+	int ret;
+
+	ret = phy_read(phydev, MDIO_DEVAD_NONE, MII_KSZPHY_OMSO);
+	if (ret < 0)
+		return ret;
+
+	ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_KSZPHY_OMSO,
+			ret | KSZPHY_OMSO_B_CAST_OFF);
+	if (ret < 0)
+		return ret;
+
+	return genphy_config(phydev);
+}
+
+static struct phy_driver KSZ8031_driver = {
+	.name = "Micrel KSZ8021/KSZ8031",
+	.uid = 0x221550,
+	.mask = 0xfffff0,
+	.features = PHY_BASIC_FEATURES,
+	.config = &ksz_genconfig_bcastoff,
+	.startup = &genphy_startup,
+	.shutdown = &genphy_shutdown,
+};
+
+/**
+ * KSZ8051
+ */
+#define MII_KSZ8051_PHY_OMSO			0x16
+#define MII_KSZ8051_PHY_OMSO_NAND_TREE_ON	(1 << 5)
+
+static int ksz8051_config(struct phy_device *phydev)
+{
+	unsigned val;
+
+	/* Disable NAND-tree */
+	val = phy_read(phydev, MDIO_DEVAD_NONE, MII_KSZ8051_PHY_OMSO);
+	val &= ~MII_KSZ8051_PHY_OMSO_NAND_TREE_ON;
+	phy_write(phydev, MDIO_DEVAD_NONE, MII_KSZ8051_PHY_OMSO, val);
+
+	return genphy_config(phydev);
+}
+
+static struct phy_driver KSZ8051_driver = {
+	.name = "Micrel KSZ8051",
+	.uid = 0x221550,
+	.mask = 0xfffff0,
+	.features = PHY_BASIC_FEATURES,
+	.config = &ksz8051_config,
+	.startup = &genphy_startup,
+	.shutdown = &genphy_shutdown,
+};
+
+static int ksz8081_config(struct phy_device *phydev)
+{
+	int ret;
+
+	ret = phy_read(phydev, MDIO_DEVAD_NONE, MII_KSZPHY_OMSO);
+	if (ret < 0)
+		return ret;
+
+	ret &= ~KSZPHY_OMSO_FACTORY_TEST;
+
+	ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_KSZPHY_OMSO,
+			ret | KSZPHY_OMSO_B_CAST_OFF);
+	if (ret < 0)
+		return ret;
+
+	return genphy_config(phydev);
+}
+
+static struct phy_driver KSZ8081_driver = {
+	.name = "Micrel KSZ8081",
+	.uid = 0x221560,
+	.mask = 0xfffff0,
+	.features = PHY_BASIC_FEATURES,
+	.config = &ksz8081_config,
+	.startup = &genphy_startup,
+	.shutdown = &genphy_shutdown,
+};
+
+/**
+ * KSZ8895
+ */
+
+static unsigned short smireg_to_phy(unsigned short reg)
+{
+	return ((reg & 0xc0) >> 3) + 0x06 + ((reg & 0x20) >> 5);
+}
+
+static unsigned short smireg_to_reg(unsigned short reg)
+{
+	return reg & 0x1F;
+}
+
+static void ksz8895_write_smireg(struct phy_device *phydev, int smireg, int val)
+{
+	phydev->bus->write(phydev->bus, smireg_to_phy(smireg), MDIO_DEVAD_NONE,
+						smireg_to_reg(smireg), val);
+}
+
+#if 0
+static int ksz8895_read_smireg(struct phy_device *phydev, int smireg)
+{
+	return phydev->bus->read(phydev->bus, smireg_to_phy(smireg),
+					MDIO_DEVAD_NONE, smireg_to_reg(smireg));
+}
+#endif
+
+int ksz8895_config(struct phy_device *phydev)
+{
+	/* we are connected directly to the switch without
+	 * dedicated PHY. SCONF1 == 001 */
+	phydev->link = 1;
+	phydev->duplex = DUPLEX_FULL;
+	phydev->speed = SPEED_100;
+
+	/* Force the switch to start */
+	ksz8895_write_smireg(phydev, 1, 1);
+
+	return 0;
+}
+
+static int ksz8895_startup(struct phy_device *phydev)
+{
+	return 0;
+}
+
+static struct phy_driver ksz8895_driver = {
+	.name = "Micrel KSZ8895/KSZ8864",
+	.uid  = 0x221450,
+	.mask = 0xffffe1,
+	.features = PHY_BASIC_FEATURES,
+	.config   = &ksz8895_config,
+	.startup  = &ksz8895_startup,
+	.shutdown = &genphy_shutdown,
+};
+
+/* Micrel used the exact same model number for the KSZ9021,
+ * so the revision number is used to distinguish them.
+ */
+static struct phy_driver KS8721_driver = {
+	.name = "Micrel KS8721BL",
+	.uid = 0x221618,
+	.mask = 0xfffffc,
+	.features = PHY_BASIC_FEATURES,
+	.config = &genphy_config,
+	.startup = &genphy_startup,
+	.shutdown = &genphy_shutdown,
+};
+
+int ksz886x_config(struct phy_device *phydev)
+{
+	/* we are connected directly to the switch without
+	 * dedicated PHY. */
+	phydev->link = 1;
+	phydev->duplex = DUPLEX_FULL;
+	phydev->speed = SPEED_100;
+	return 0;
+}
+
+static int ksz886x_startup(struct phy_device *phydev)
+{
+	return 0;
+}
+
+static struct phy_driver ksz886x_driver = {
+	.name = "Micrel KSZ886x Switch",
+	.uid  = 0x00221430,
+	.mask = 0xfffff0,
+	.features = PHY_BASIC_FEATURES,
+	.config = &ksz886x_config,
+	.startup = &ksz886x_startup,
+	.shutdown = &genphy_shutdown,
+};
+
+int phy_micrel_ksz8xxx_init(void)
+{
+	phy_register(&KSZ804_driver);
+	phy_register(&KSZ8031_driver);
+	phy_register(&KSZ8051_driver);
+	phy_register(&KSZ8081_driver);
+	phy_register(&KS8721_driver);
+	phy_register(&ksz8895_driver);
+	phy_register(&ksz886x_driver);
+	return 0;
+}