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From e719404ee1241af679a51879eaad291bc27e4817 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Tue, 2 Dec 2014 14:46:05 +0100
Subject: [PATCH] net/phy: add back icplus driver
IC+ phy driver was removed due to the lack of users some time ago.
Add it back, so we can use it.
---
drivers/net/phy/Makefile | 1 +
drivers/net/phy/icplus.c | 80 ++++++++++++++++++++++++++++++++++++++++++++++++
drivers/net/phy/phy.c | 3 ++
3 files changed, 84 insertions(+)
create mode 100644 drivers/net/phy/icplus.c
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_PHY_ATHEROS) += atheros.o
obj-$(CONFIG_PHY_BROADCOM) += broadcom.o
obj-$(CONFIG_PHY_DAVICOM) += davicom.o
obj-$(CONFIG_PHY_ET1011C) += et1011c.o
+obj-$(CONFIG_PHY_ICPLUS) += icplus.o
obj-$(CONFIG_PHY_LXT) += lxt.o
obj-$(CONFIG_PHY_MARVELL) += marvell.o
obj-$(CONFIG_PHY_MICREL) += micrel.o
--- /dev/null
+++ b/drivers/net/phy/icplus.c
@@ -0,0 +1,80 @@
+/*
+ * ICPlus PHY drivers
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ * Copyright (c) 2007 Freescale Semiconductor, Inc.
+ */
+#include <phy.h>
+
+/* IP101A/G - IP1001 */
+#define IP10XX_SPEC_CTRL_STATUS 16 /* Spec. Control Register */
+#define IP1001_SPEC_CTRL_STATUS_2 20 /* IP1001 Spec. Control Reg 2 */
+#define IP1001_PHASE_SEL_MASK 3 /* IP1001 RX/TXPHASE_SEL */
+#define IP1001_APS_ON 11 /* IP1001 APS Mode bit */
+#define IP101A_G_APS_ON 2 /* IP101A/G APS Mode bit */
+#define IP101A_G_IRQ_CONF_STATUS 0x11 /* Conf Info IRQ & Status Reg */
+#define IP101A_G_IRQ_PIN_USED (1<<15) /* INTR pin used */
+#define IP101A_G_IRQ_DEFAULT IP101A_G_IRQ_PIN_USED
+
+static int ip1001_config(struct phy_device *phydev)
+{
+ int c;
+
+ /* Enable Auto Power Saving mode */
+ c = phy_read(phydev, MDIO_DEVAD_NONE, IP1001_SPEC_CTRL_STATUS_2);
+ if (c < 0)
+ return c;
+ c |= IP1001_APS_ON;
+ c = phy_write(phydev, MDIO_DEVAD_NONE, IP1001_SPEC_CTRL_STATUS_2, c);
+ if (c < 0)
+ return c;
+
+ /* INTR pin used: speed/link/duplex will cause an interrupt */
+ c = phy_write(phydev, MDIO_DEVAD_NONE, IP101A_G_IRQ_CONF_STATUS,
+ IP101A_G_IRQ_DEFAULT);
+ if (c < 0)
+ return c;
+
+ if (phydev->interface == PHY_INTERFACE_MODE_RGMII) {
+ /*
+ * Additional delay (2ns) used to adjust RX clock phase
+ * at RGMII interface
+ */
+ c = phy_read(phydev, MDIO_DEVAD_NONE, IP10XX_SPEC_CTRL_STATUS);
+ if (c < 0)
+ return c;
+
+ c |= IP1001_PHASE_SEL_MASK;
+ c = phy_write(phydev, MDIO_DEVAD_NONE, IP10XX_SPEC_CTRL_STATUS,
+ c);
+ if (c < 0)
+ return c;
+ }
+
+ return 0;
+}
+
+static int ip1001_startup(struct phy_device *phydev)
+{
+ genphy_update_link(phydev);
+ genphy_parse_link(phydev);
+
+ return 0;
+}
+static struct phy_driver IP1001_driver = {
+ .name = "ICPlus IP1001",
+ .uid = 0x02430d90,
+ .mask = 0x0ffffff0,
+ .features = PHY_GBIT_FEATURES,
+ .config = &ip1001_config,
+ .startup = &ip1001_startup,
+ .shutdown = &genphy_shutdown,
+};
+
+int phy_icplus_init(void)
+{
+ phy_register(&IP1001_driver);
+
+ return 0;
+}
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -454,6 +454,9 @@ int phy_init(void)
#ifdef CONFIG_PHY_ET1011C
phy_et1011c_init();
#endif
+#ifdef CONFIG_PHY_ICPLUS
+ phy_icplus_init();
+#endif
#ifdef CONFIG_PHY_LXT
phy_lxt_init();
#endif
--- a/include/phy.h
+++ b/include/phy.h
@@ -225,6 +225,7 @@ int phy_atheros_init(void);
int phy_broadcom_init(void);
int phy_davicom_init(void);
int phy_et1011c_init(void);
+int phy_icplus_init(void);
int phy_lxt_init(void);
int phy_marvell_init(void);
int phy_micrel_init(void);
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