ramips: phy: at803x: support RGMII-to-SerDes and SFP support
Signed-off-by: DENG Qingfang <dengqf6@mail2.sysu.edu.cn> Signed-off-by: René van Dorst <opensource@vdorst.com>
This commit is contained in:
DENG Qingfang
committed by
Alexander Couzens
Alexander Couzens
parent
63696bd0fb
commit
6d924706a6
141
target/linux/ramips/patches-5.4/991-at803x.patch
Normal file
141
target/linux/ramips/patches-5.4/991-at803x.patch
Normal file
@@ -0,0 +1,141 @@
|
||||
From 60ae82b0ea56c279be384b99cd2a42ae5ba7c5c7 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Ren=C3=A9=20van=20Dorst?= <opensource@vdorst.com>
|
||||
Date: Mon, 4 Nov 2019 22:22:17 +0100
|
||||
Subject: [PATCH] net: phy: at803x: add support for SFP module in
|
||||
RGMII-to-x-base mode
|
||||
MIME-Version: 1.0
|
||||
Content-Type: text/plain; charset=UTF-8
|
||||
Content-Transfer-Encoding: 8bit
|
||||
|
||||
Signed-off-by: René van Dorst <opensource@vdorst.com>
|
||||
---
|
||||
drivers/net/phy/at803x.c | 74 ++++++++++++++++++++++++++++++++++++++++
|
||||
1 file changed, 74 insertions(+)
|
||||
|
||||
diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
|
||||
index 481cf48c9b9e4..a6536ecf15db4 100644
|
||||
--- a/drivers/net/phy/at803x.c
|
||||
+++ b/drivers/net/phy/at803x.c
|
||||
@@ -19,6 +19,7 @@
|
||||
#include <linux/etherdevice.h>
|
||||
#include <linux/of_gpio.h>
|
||||
#include <linux/gpio/consumer.h>
|
||||
+#include <linux/sfp.h>
|
||||
|
||||
#define AT803X_SPECIFIC_STATUS 0x11
|
||||
#define AT803X_SS_SPEED_MASK (3 << 14)
|
||||
@@ -57,9 +58,18 @@
|
||||
|
||||
#define AT803X_MODE_CFG_MASK 0x0F
|
||||
#define AT803X_MODE_CFG_SGMII 0x01
|
||||
+#define AT803X_MODE_CFG_BX1000_RGMII_50 0x02
|
||||
+#define AT803X_MODE_CFG_BX1000_RGMII_75 0x03
|
||||
+#define AT803X_MODE_FIBER 0x01
|
||||
+#define AT803X_MODE_COPPER 0x00
|
||||
|
||||
#define AT803X_PSSR 0x11 /*PHY-Specific Status Register*/
|
||||
#define AT803X_PSSR_MR_AN_COMPLETE 0x0200
|
||||
+#define PSSR_LINK BIT(10)
|
||||
+#define PSSR_SYNC_STATUS BIT(8)
|
||||
+#define PSSR_DUPLEX BIT(13)
|
||||
+#define PSSR_SPEED_1000 BIT(15)
|
||||
+#define PSSR_SPEED_100 BIT(14)
|
||||
|
||||
#define AT803X_DEBUG_REG_0 0x00
|
||||
#define AT803X_DEBUG_RX_CLK_DLY_EN BIT(15)
|
||||
@@ -475,10 +485,56 @@ static int at803x_parse_dt(struct phy_device *phydev)
|
||||
return 0;
|
||||
}
|
||||
|
||||
+static int at803x_mode(struct phy_device *phydev)
|
||||
+{
|
||||
+ int mode;
|
||||
+
|
||||
+ mode = phy_read(phydev, AT803X_REG_CHIP_CONFIG) & AT803X_MODE_CFG_MASK;
|
||||
+
|
||||
+ if (mode == AT803X_MODE_CFG_BX1000_RGMII_50 ||
|
||||
+ mode == AT803X_MODE_CFG_BX1000_RGMII_75)
|
||||
+ return AT803X_MODE_FIBER;
|
||||
+ return AT803X_MODE_COPPER;
|
||||
+}
|
||||
+
|
||||
+static int at803x_sfp_insert(void *upstream, const struct sfp_eeprom_id *id)
|
||||
+{
|
||||
+ struct phy_device *phydev = upstream;
|
||||
+ __ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, };
|
||||
+ phy_interface_t iface;
|
||||
+
|
||||
+ sfp_parse_support(phydev->sfp_bus, id, support);
|
||||
+ iface = sfp_select_interface(phydev->sfp_bus, support);
|
||||
+
|
||||
+ if (iface != PHY_INTERFACE_MODE_SGMII &&
|
||||
+ iface != PHY_INTERFACE_MODE_1000BASEX) {
|
||||
+ dev_info(&phydev->mdio.dev, "incompatible SFP module inserted;"
|
||||
+ "Only SGMII/1000BASEX are supported!\n");
|
||||
+ return -EINVAL;
|
||||
+ }
|
||||
+
|
||||
+ dev_info(&phydev->mdio.dev, "SFP interface %s", phy_modes(iface));
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static const struct sfp_upstream_ops at803x_sfp_ops = {
|
||||
+ .attach = phy_sfp_attach,
|
||||
+ .detach = phy_sfp_detach,
|
||||
+ .module_insert = at803x_sfp_insert,
|
||||
+};
|
||||
+
|
||||
static int at803x_probe(struct phy_device *phydev)
|
||||
{
|
||||
struct device *dev = &phydev->mdio.dev;
|
||||
struct at803x_priv *priv;
|
||||
+ int ret;
|
||||
+
|
||||
+ if (at803x_mode(phydev) == AT803X_MODE_FIBER) {
|
||||
+ ret = phy_sfp_probe(phydev, &at803x_sfp_ops);
|
||||
+ if (ret < 0)
|
||||
+ return ret;
|
||||
+ }
|
||||
|
||||
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
|
||||
if (!priv)
|
||||
@@ -658,6 +714,10 @@ static int at803x_read_status(struct phy_device *phydev)
|
||||
{
|
||||
int ss, err, old_link = phydev->link;
|
||||
|
||||
+ /* Handle (Fiber) SGMII to RGMII mode */
|
||||
+ if (at803x_mode(phydev) == AT803X_MODE_FIBER)
|
||||
+ return genphy_c37_read_status(phydev);
|
||||
+
|
||||
/* Update the link, but return if there was an error */
|
||||
err = genphy_update_link(phydev);
|
||||
if (err)
|
||||
@@ -712,6 +772,19 @@ static int at803x_read_status(struct phy_device *phydev)
|
||||
return 0;
|
||||
}
|
||||
|
||||
+static int at803x_config_aneg(struct phy_device *phydev)
|
||||
+{
|
||||
+ /* Handle (Fiber) SerDes to RGMII mode */
|
||||
+ if (at803x_mode(phydev) == AT803X_MODE_FIBER) {
|
||||
+ pr_warn("%s: fiber\n", __func__);
|
||||
+ return genphy_c37_config_aneg(phydev);
|
||||
+ }
|
||||
+
|
||||
+ pr_warn("%s: enter\n", __func__);
|
||||
+
|
||||
+ return genphy_config_aneg(phydev);
|
||||
+}
|
||||
+
|
||||
static struct phy_driver at803x_driver[] = {
|
||||
{
|
||||
/* Qualcomm Atheros AR8035 */
|
||||
@@ -758,6 +831,7 @@ static struct phy_driver at803x_driver[] = {
|
||||
.suspend = at803x_suspend,
|
||||
.resume = at803x_resume,
|
||||
/* PHY_GBIT_FEATURES */
|
||||
+ .config_aneg = at803x_config_aneg,
|
||||
.read_status = at803x_read_status,
|
||||
.aneg_done = at803x_aneg_done,
|
||||
.ack_interrupt = &at803x_ack_interrupt,
|
||||
Reference in New Issue
Block a user