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Subject[PATCH 01/11] net: phy: Add rockchip phy driver support
Date
Support internal ephy currently.

Signed-off-by: David Wu <david.wu@rock-chips.com>
---
drivers/net/phy/Kconfig | 4 ++
drivers/net/phy/Makefile | 1 +
drivers/net/phy/rockchip.c | 94 ++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 99 insertions(+)
create mode 100644 drivers/net/phy/rockchip.c

diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index c360dd6..86010d4 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -350,6 +350,10 @@ config XILINX_GMII2RGMII
the Reduced Gigabit Media Independent Interface(RGMII) between
Ethernet physical media devices and the Gigabit Ethernet controller.

+config ROCKCHIP_MAC_PHY
+ tristate "Drivers for ROCKCHIP MAC PHY"
+ ---help---
+ Currently supports the mac internal ephy.
endif # PHYLIB

config MICREL_KS8995MA
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index e36db9a..6d96779 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -69,3 +69,4 @@ obj-$(CONFIG_STE10XP) += ste10Xp.o
obj-$(CONFIG_TERANETICS_PHY) += teranetics.o
obj-$(CONFIG_VITESSE_PHY) += vitesse.o
obj-$(CONFIG_XILINX_GMII2RGMII) += xilinx_gmii2rgmii.o
+obj-$(CONFIG_ROCKCHIP_MAC_PHY) += rockchip.o
diff --git a/drivers/net/phy/rockchip.c b/drivers/net/phy/rockchip.c
new file mode 100644
index 0000000..69e96ec
--- /dev/null
+++ b/drivers/net/phy/rockchip.c
@@ -0,0 +1,94 @@
+/**
+ * Rockchip mac phy driver
+ *
+ * Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
+ *
+ * David Wu<david.wu@rock-chips.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/phy.h>
+#include <linux/netdevice.h>
+
+static int internal_config_init(struct phy_device *phydev)
+{
+ int val;
+ u32 features;
+
+ /*enable auto mdix*/
+ phy_write(phydev, 0x11, 0x0080);
+
+ features = (SUPPORTED_TP | SUPPORTED_MII
+ | SUPPORTED_AUI | SUPPORTED_FIBRE |
+ SUPPORTED_BNC);
+
+ /* Do we support autonegotiation? */
+ val = phy_read(phydev, MII_BMSR);
+ if (val < 0)
+ return val;
+
+ if (val & BMSR_ANEGCAPABLE)
+ features |= SUPPORTED_Autoneg;
+
+ if (val & BMSR_100FULL)
+ features |= SUPPORTED_100baseT_Full;
+ if (val & BMSR_100HALF)
+ features |= SUPPORTED_100baseT_Half;
+ if (val & BMSR_10FULL)
+ features |= SUPPORTED_10baseT_Full;
+ if (val & BMSR_10HALF)
+ features |= SUPPORTED_10baseT_Half;
+
+ if (val & BMSR_ESTATEN) {
+ val = phy_read(phydev, MII_ESTATUS);
+ if (val < 0)
+ return val;
+
+ if (val & ESTATUS_1000_TFULL)
+ features |= SUPPORTED_1000baseT_Full;
+ if (val & ESTATUS_1000_THALF)
+ features |= SUPPORTED_1000baseT_Half;
+ }
+
+ phydev->supported = features;
+ phydev->advertising = features;
+
+ return 0;
+}
+
+static struct phy_driver rockchip_phy_driver[] = {
+{
+ .phy_id = 0x1234d400,
+ .phy_id_mask = 0xffffffff,
+ .name = "rockchip internal ephy",
+ .features = 0,
+ .config_init = internal_config_init,
+ .config_aneg = genphy_config_aneg,
+ .read_status = genphy_read_status,
+ .suspend = genphy_suspend,
+ .resume = genphy_resume,
+},
+};
+
+module_phy_driver(rockchip_phy_driver);
+
+static struct mdio_device_id __maybe_unused rockchip_phy_tbl[] = {
+ { 0x1234d400, 0xffffffff },
+ { }
+};
+
+MODULE_DEVICE_TABLE(mdio, rockchip_phy_tbl);
+
+MODULE_AUTHOR("David Wu<david.wu@rock-chips.com>");
+MODULE_DESCRIPTION("Rockchip mac phy driver");
+MODULE_LICENSE("GPL v2");
--
1.9.1

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