Add the minimal driver to support the Realtek RTL8201F 10/100Mbps
Ethernet Transceivers.
The help message for the config REALTEK_PHY is also modified to
describe the current status of the module correctly.
Changes in v2:
* separated patch (pointed by Francois Romieu and Sergei Shtylyov)
* create register page-selecting function (pointed by Francois Romieu)
Signed-off-by: Jongsung Kim <neidhard....@lge.com>
Cc: Francois Romieu <rom...@fr.zoreil.com>
Cc: Sergei Shtylyov <sergei.shtyl...@cogentembedded.com>
---
drivers/net/phy/Kconfig | 2 +-
drivers/net/phy/realtek.c | 52 +++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 53 insertions(+), 1 deletions(-)
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 1e11f2b..000425e 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -84,7 +84,7 @@ config ICPLUS_PHY
config REALTEK_PHY
tristate "Drivers for Realtek PHYs"
---help---
- Supports the Realtek 821x PHY.
+ Currently supports the RTL8201F, RTL8211B and RTL8211E PHYs.
config NATIONAL_PHY
tristate "Drivers for National Semiconductor PHYs"
diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
index f902107..8e95e38 100644
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -16,6 +16,11 @@
#include <linux/phy.h>
#include <linux/module.h>
+#define RTL8201F_INSR 0x1e
+#define RTL8201F_PGSR 0x1f
+#define RTL8201F_INER 0x13
+#define RTL8201F_INER_MASK 0x3800
+
#define RTL821x_PHYSR 0x11
#define RTL821x_PHYSR_DUPLEX 0x2000
#define RTL821x_PHYSR_SPEED 0xc000
@@ -29,6 +34,15 @@ MODULE_DESCRIPTION("Realtek PHY driver");
MODULE_AUTHOR("Johnson Leung");
MODULE_LICENSE("GPL");
+static int rtl8201f_ack_interrupt(struct phy_device *phydev)
+{
+ int err;
+
+ err = phy_read(phydev, RTL8201F_INSR);
+
+ return (err < 0) ? err : 0;
+}
+
static int rtl821x_ack_interrupt(struct phy_device *phydev)
{
int err;
@@ -38,6 +52,29 @@ static int rtl821x_ack_interrupt(struct phy_device *phydev)
return (err < 0) ? err : 0;
}
+static void rtl8201f_select_page(struct phy_device *phydev, int page)
+{
+ phy_write(phydev, RTL8201F_PGSR, page);
+}
+
+static int rtl8201f_config_intr(struct phy_device *phydev)
+{
+ int err;
+
+ rtl8201f_select_page(phydev, 7);
+
+ if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
+ err = phy_write(phydev, RTL8201F_INER, RTL8201F_INER_MASK |
+ phy_read(phydev, RTL8201F_INER));
+ else
+ err = phy_write(phydev, RTL8201F_INER, ~RTL8201F_INER_MASK &
+ phy_read(phydev, RTL8201F_INER));
+
+ rtl8201f_select_page(phydev, 0);
+
+ return err;
+}
+
static int rtl8211b_config_intr(struct phy_device *phydev)
{
int err;
@@ -65,6 +102,20 @@ static int rtl8211e_config_intr(struct phy_device *phydev)
}
static struct phy_driver realtek_drv[] = {
+ { /* RTL8201F */
+ .phy_id = 0x001cc816,
+ .name = "RTL8201F 10/100Mbps Ethernet",
+ .phy_id_mask = 0x001fffff,
+ .features = PHY_BASIC_FEATURES,
+ .flags = PHY_HAS_INTERRUPT,
+ .config_aneg = &genphy_config_aneg,
+ .read_status = &genphy_read_status,
+ .ack_interrupt = &rtl8201f_ack_interrupt,
+ .config_intr = &rtl8201f_config_intr,
+ .suspend = genphy_suspend,
+ .resume = genphy_resume,
+ .driver = { .owner = THIS_MODULE,},
+ },
{ /* RTL8211B */
.phy_id = 0x001cc912,
.name = "RTL8211B Gigabit Ethernet",
@@ -107,6 +158,7 @@ module_init(realtek_init);
module_exit(realtek_exit);
static struct mdio_device_id __maybe_unused realtek_tbl[] = {
+ { 0x001cc816, 0x001fffff },
{ 0x001cc912, 0x001fffff },
{ 0x001cc915, 0x001fffff },
{ }
--
1.7.1
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