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path: root/drivers/net/phy/micrel_ksz8xxx.c
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Diffstat (limited to 'drivers/net/phy/micrel_ksz8xxx.c')
-rw-r--r--drivers/net/phy/micrel_ksz8xxx.c200
1 files changed, 200 insertions, 0 deletions
diff --git a/drivers/net/phy/micrel_ksz8xxx.c b/drivers/net/phy/micrel_ksz8xxx.c
new file mode 100644
index 0000000000..ec628bb27a
--- /dev/null
+++ b/drivers/net/phy/micrel_ksz8xxx.c
@@ -0,0 +1,200 @@
+/*
+ * Micrel PHY drivers
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ * Copyright 2010-2011 Freescale Semiconductor, Inc.
+ * author Andy Fleming
+ * (C) 2012 NetModule AG, David Andrey, added KSZ9031
+ */
+#include <config.h>
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <fdtdec.h>
+#include <micrel.h>
+#include <phy.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+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_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 struct phy_driver KSZ8081_driver = {
+ .name = "Micrel KSZ8081",
+ .uid = 0x221560,
+ .mask = 0xfffff0,
+ .features = PHY_BASIC_FEATURES,
+ .config = &ksz_genconfig_bcastoff,
+ .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 part number for the KSZ9021. */
+static struct phy_driver KS8721_driver = {
+ .name = "Micrel KS8721BL",
+ .uid = 0x221610,
+ .mask = 0xfffff0,
+ .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;
+}