mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-27 01:11:14 +00:00
6d4ef67926
Ran update_kernel.sh in a fresh clone without any existing toolchains. No manual intervention needed. Build system: x86_64 Build-tested: ipq806x/R7800 Run-tested: ipq806x/R7800 No dmesg regressions, everything functional Signed-off-by: John Audia <graysky@archlinux.us>
157 lines
4.5 KiB
Diff
157 lines
4.5 KiB
Diff
From 924453aa9d2324e5611f8e2b71df746d8f0c79f1 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Ren=C3=A9=20van=20Dorst?= <opensource@vdorst.com>
|
|
Date: Fri, 13 Nov 2020 16:11:32 +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 | 91 ++++++++++++++++++++++++++++++++++++++++
|
|
1 file changed, 91 insertions(+)
|
|
|
|
--- a/drivers/net/phy/at803x.c
|
|
+++ b/drivers/net/phy/at803x.c
|
|
@@ -14,6 +14,8 @@
|
|
#include <linux/etherdevice.h>
|
|
#include <linux/of_gpio.h>
|
|
#include <linux/gpio/consumer.h>
|
|
+#include <linux/sfp.h>
|
|
+#include <linux/phylink.h>
|
|
|
|
#define AT803X_SPECIFIC_STATUS 0x11
|
|
#define AT803X_SS_SPEED_MASK (3 << 14)
|
|
@@ -53,9 +55,18 @@
|
|
|
|
#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)
|
|
@@ -243,10 +254,72 @@ static int at803x_resume(struct phy_devi
|
|
return phy_modify(phydev, MII_BMCR, BMCR_PDOWN | BMCR_ISOLATE, 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)
|
|
+{
|
|
+ __ETHTOOL_DECLARE_LINK_MODE_MASK(at803x_support) = { 0, };
|
|
+ __ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, };
|
|
+ struct phy_device *phydev = upstream;
|
|
+ phy_interface_t iface;
|
|
+
|
|
+ phylink_set(at803x_support, 1000baseX_Full);
|
|
+ /* AT803x only support 1000baseX but SGMII works fine when module runs
|
|
+ * at 1Gbit.
|
|
+ */
|
|
+ phylink_set(at803x_support, 1000baseT_Full);
|
|
+
|
|
+ sfp_parse_support(phydev->sfp_bus, id, support);
|
|
+
|
|
+ // Limit to interfaces that both sides support
|
|
+ linkmode_and(support, support, at803x_support);
|
|
+
|
|
+ if (linkmode_empty(support))
|
|
+ goto unsupported_mode;
|
|
+
|
|
+ iface = sfp_select_interface(phydev->sfp_bus, support);
|
|
+
|
|
+ if (iface != PHY_INTERFACE_MODE_SGMII &&
|
|
+ iface != PHY_INTERFACE_MODE_1000BASEX)
|
|
+ goto unsupported_mode;
|
|
+
|
|
+ dev_info(&phydev->mdio.dev, "SFP interface %s", phy_modes(iface));
|
|
+
|
|
+ return 0;
|
|
+
|
|
+unsupported_mode:
|
|
+ dev_info(&phydev->mdio.dev, "incompatible SFP module inserted;"
|
|
+ "Only SGMII at 1Gbit/1000BASEX are supported!\n");
|
|
+ return -EINVAL;
|
|
+}
|
|
+
|
|
+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)
|
|
@@ -394,6 +467,10 @@ static int at803x_read_status(struct phy
|
|
{
|
|
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)
|
|
@@ -448,6 +525,19 @@ static int at803x_read_status(struct phy
|
|
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[] = {
|
|
{
|
|
/* ATHEROS 8035 */
|
|
@@ -461,6 +551,7 @@ 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,
|
|
.ack_interrupt = at803x_ack_interrupt,
|
|
.config_intr = at803x_config_intr,
|