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build/patch/kernel/archive/rockchip64-5.10/net-phy-Add-driver-for-Motorcomm-2-YT8531-PHYs.patch

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From abf36eb72942657cef05ebcb2897eaea9064ad06 Mon Sep 17 00:00:00 2001
From: From: fengying0347 <fengying0347@163.com>
Date: Thu, 13 Jan 2022 12:59:36 +0800
Subject: [PATCH] net: phy: Add driver for Motorcomm YT8531(S) PHYs
---
.../net/ethernet/stmicro/stmmac/stmmac_main.c | 82 ++++++++
drivers/net/phy/motorcomm.c | 181 +++++++++++++++++-
drivers/net/phy/phy_device.c | 83 ++++++++
include/linux/motorcomm_phy.h | 5 +
4 files changed, 350 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 8dc4def..bcd46ca 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -121,6 +121,10 @@ static void stmmac_exit_fs(struct net_device *dev);
#define STMMAC_COAL_TIMER(x) (jiffies + usecs_to_jiffies(x))
+#define RTL_8211E_PHY_ID 0x001cc915
+#define RTL_8211F_PHY_ID 0x001cc916
+#define YT_8531C_PHY_ID 0x4f51e91b
+
int stmmac_bus_clks_config(struct stmmac_priv *priv, bool enabled)
{
int ret = 0;
@@ -4950,6 +4954,74 @@ int stmmac_reinit_ringparam(struct net_device *dev, u32 rx_size, u32 tx_size)
return ret;
}
+static int phy_rtl8211e_led_fixup(struct phy_device *phydev)
+{
+ int val;
+
+ printk("%s in\n", __func__);
+
+ /*switch to extension page44*/
+ phy_write(phydev, 31, 0x07);
+ phy_write(phydev, 30, 0x2c);
+
+ /*set led1(yellow) act*/
+ val = phy_read(phydev, 26);
+ val &= (~(1<<4));// bit4=0
+ val |= (1<<5);// bit5=1
+ val &= (~(1<<6));// bit6=0
+ phy_write(phydev, 26, val);
+
+ /*set led0(green) link*/
+ val = phy_read(phydev, 28);
+ val |= (7<<0);// bit0,1,2=1
+ val &= (~(7<<4));// bit4,5,6=0
+ val &= (~(7<<8));// bit8,9,10=0
+ phy_write(phydev, 28, val);
+
+ /*switch back to page0*/
+ phy_write(phydev,31,0x00);
+
+ return 0;
+}
+
+static int phy_rtl8211f_led_fixup(struct phy_device *phydev)
+{
+ int val;
+
+ printk("%s in\n", __func__);
+
+ /*switch to extension page 0xd04*/
+ phy_write(phydev, 31, 0xd04);
+
+
+ /*set led1(yellow) act*/
+ /*set led2(green) link*/
+ val = 0xae00;
+ phy_write(phydev, 16, val);
+
+ val = 0x0;
+ phy_write(phydev, 17, val);
+ /*switch back to page0*/
+ phy_write(phydev,31,0x00);
+
+ return 0;
+}
+
+static int phy_yt8531_led_fixup(struct phy_device *phydev)
+{
+ printk("%s in\n", __func__);
+ phy_write(phydev, 0x1e, 0xa00d);
+ phy_write(phydev, 0x1f, 0x670);
+
+ phy_write(phydev, 0x1e, 0xa00e);
+ phy_write(phydev, 0x1f, 0x2070);
+
+ phy_write(phydev, 0x1e, 0xa00f);
+ phy_write(phydev, 0x1f, 0x7e);
+
+ return 0;
+}
+
/**
* stmmac_dvr_probe
* @device: device pointer
@@ -5173,6 +5245,16 @@ int stmmac_dvr_probe(struct device *device,
netdev_err(ndev, "failed to setup phy (%d)\n", ret);
goto error_phy_setup;
}
+ /* register the PHY board fixup */
+ ret = phy_register_fixup_for_uid(RTL_8211E_PHY_ID, 0xffffffff, phy_rtl8211e_led_fixup);
+ if (ret)
+ pr_warn("Cannot register PHY board fixup.\n");
+ ret = phy_register_fixup_for_uid(RTL_8211F_PHY_ID, 0xffffffff, phy_rtl8211f_led_fixup);
+ if (ret)
+ pr_warn("Cannot register PHY board fixup.\n");
+ ret = phy_register_fixup_for_uid(YT_8531C_PHY_ID, 0xffffffff, phy_yt8531_led_fixup);
+ if (ret)
+ pr_warn("Cannot register PHY board fixup.\n");
ret = register_netdev(ndev);
if (ret) {
diff --git a/drivers/net/phy/motorcomm.c b/drivers/net/phy/motorcomm.c
index 17a4f6c..e37dfb9 100644
--- a/drivers/net/phy/motorcomm.c
+++ b/drivers/net/phy/motorcomm.c
@@ -26,6 +26,13 @@
#include <linux/of.h>
#include <linux/clk.h>
+static int link_mode_8521 = 0; //0: no link; 1: utp; 32: fiber. traced that 1000m fiber uses 32.
+
+int genphy_config_init(struct phy_device *phydev)
+{
+ return genphy_read_abilities(phydev);
+}
+
static int ytphy_read_ext(struct phy_device *phydev, u32 regnum)
{
int ret;
@@ -263,6 +270,38 @@ static int yt8521_config_intr(struct phy_device *phydev)
return phy_write(phydev, REG_INT_MASK, val);
}
+static int yt8521_adjust_status(struct phy_device *phydev, int val, int is_utp)
+{
+ int speed_mode, duplex;
+
+ int speed = SPEED_UNKNOWN;
+
+ duplex = (val & YT8512_DUPLEX) >> YT8521_DUPLEX_BIT;
+ speed_mode = (val & YT8521_SPEED_MODE) >> YT8521_SPEED_MODE_BIT;
+ switch (speed_mode) {
+ case 0:
+ if (is_utp)
+ speed = SPEED_10;
+ break;
+ case 1:
+ speed = SPEED_100;
+ break;
+ case 2:
+ speed = SPEED_1000;
+ break;
+ case 3:
+ break;
+ default:
+ speed = SPEED_UNKNOWN;
+ break;
+ }
+
+ phydev->speed = speed;
+ phydev->duplex = duplex;
+
+ return 0;
+}
+
static int yt8521_ack_interrupt(struct phy_device *phydev)
{
int val;
@@ -273,6 +312,121 @@ static int yt8521_ack_interrupt(struct phy_device *phydev)
return (val < 0) ? val : 0;
}
+static int yt8521_read_status(struct phy_device *phydev)
+{
+ int ret;
+ volatile int val, yt8521_fiber_latch_val, yt8521_fiber_curr_val;
+ volatile int link;
+ int link_utp = 0, link_fiber = 0;
+
+ /* reading UTP */
+ ret = ytphy_write_ext(phydev, 0xa000, 0);
+ if (ret < 0)
+ return ret;
+
+ val = phy_read(phydev, REG_PHY_SPEC_STATUS);
+ if (val < 0)
+ return val;
+
+ link = val & (BIT(YT8521_LINK_STATUS_BIT));
+ if (link) {
+ link_utp = 1;
+ link_mode_8521 = 1;
+ yt8521_adjust_status(phydev, val, 1);
+ }
+ else {
+ link_utp = 0;
+ }
+
+ /* reading Fiber */
+ ret = ytphy_write_ext(phydev, 0xa000, 2);
+ if (ret < 0)
+ return ret;
+
+ val = phy_read(phydev, REG_PHY_SPEC_STATUS);
+ if (val < 0)
+ return val;
+
+ //note: below debug information is used to check multiple PHy ports.
+ //printk (KERN_INFO "yt8521_read_status, fiber status=%04x,macbase=0x%08lx\n", val,(unsigned long)phydev->attached_dev);
+
+ /* for fiber, from 1000m to 100m, there is not link down from 0x11, and check reg 1 to identify such case
+ * this is important for Linux kernel for that, missing linkdown event will cause problem.
+ */
+ yt8521_fiber_latch_val = phy_read(phydev, MII_BMSR);
+ yt8521_fiber_curr_val = phy_read(phydev, MII_BMSR);
+ link = val & (BIT(YT8521_LINK_STATUS_BIT));
+ if ((link) && (yt8521_fiber_latch_val != yt8521_fiber_curr_val))
+ {
+ link = 0;
+ printk(KERN_INFO "yt8521_read_status, fiber link down detect,latch=%04x,curr=%04x\n", yt8521_fiber_latch_val, yt8521_fiber_curr_val);
+ }
+
+ if (link) {
+ link_fiber = 1;
+ yt8521_adjust_status(phydev, val, 0);
+ link_mode_8521 = 32; //fiber mode
+
+
+ }
+ else {
+ link_fiber = 0;
+ }
+
+ if (link_utp || link_fiber) {
+ phydev->link = 1;
+ }
+ else {
+ phydev->link = 0;
+ link_mode_8521 = 0;
+ }
+
+ if (link_utp) {
+ ytphy_write_ext(phydev, 0xa000, 0);
+ }
+
+ return 0;
+}
+
+/*
+ * for fiber mode, when speed is 100M, there is no definition for autonegotiation, and
+ * this function handles this case and return 1 per linux kernel's polling.
+ */
+int yt8521_aneg_done(struct phy_device *phydev)
+{
+
+ if ((32 == link_mode_8521) && (SPEED_100 == phydev->speed))
+ {
+ return 1/*link_mode_8521*/;
+ }
+
+ return genphy_aneg_done(phydev);
+}
+
+int yt8521_soft_reset(struct phy_device *phydev)
+{
+ int ret, val;
+
+ val = ytphy_read_ext(phydev, 0xa001);
+ ytphy_write_ext(phydev, 0xa001, (val & ~0x8000));
+
+ ret = genphy_soft_reset(phydev);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+int yt8521_suspend(struct phy_device *phydev)
+{
+ return 0;
+}
+
+int yt8521_resume(struct phy_device *phydev)
+{
+ return 0;
+}
+
static struct phy_driver ytphy_drvs[] = {
{
.phy_id = PHY_ID_YT8010,
@@ -323,7 +477,30 @@ static struct phy_driver ytphy_drvs[] = {
.config_intr = yt8521_config_intr,
.suspend = genphy_suspend,
.resume = genphy_resume,
- },
+ }, {
+ /* same as 8521 */
+ .phy_id = PHY_ID_YT8531S,
+ .name = "YT8531S Ethernet",
+ .phy_id_mask = MOTORCOMM_PHY_ID_MASK,
+ .flags = PHY_POLL,
+ .soft_reset = yt8521_soft_reset,
+ .config_aneg = genphy_config_aneg,
+ .aneg_done = yt8521_aneg_done,
+ .config_init = yt8521_config_init,
+ .read_status = yt8521_read_status,
+ .suspend = yt8521_suspend,
+ .resume = yt8521_resume,
+ }, {
+ /* same as 8511 */
+ .phy_id = PHY_ID_YT8531,
+ .name = "YT8531 Gigabit Ethernet",
+ .phy_id_mask = MOTORCOMM_PHY_ID_MASK,
+ .config_aneg = genphy_config_aneg,
+ .config_init = genphy_config_init,
+ .read_status = genphy_read_status,
+ .suspend = genphy_suspend,
+ .resume = genphy_resume,
+ }
};
module_phy_driver(ytphy_drvs);
@@ -339,6 +516,8 @@ static struct mdio_device_id __maybe_unused motorcomm_tbl[] = {
{ PHY_ID_YT8512, MOTORCOMM_PHY_ID_MASK },
{ PHY_ID_YT8512B, MOTORCOMM_PHY_ID_MASK },
{ PHY_ID_YT8521, MOTORCOMM_PHY_ID_MASK },
+ { PHY_ID_YT8531S, MOTORCOMM_PHY_ID_8531_MASK },
+ { PHY_ID_YT8531, MOTORCOMM_PHY_ID_8531_MASK },
{ }
};
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 950277e..3a35040 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -32,6 +32,7 @@
#include <linux/string.h>
#include <linux/uaccess.h>
#include <linux/unistd.h>
+#include <linux/motorcomm_phy.h>
MODULE_DESCRIPTION("PHY library");
MODULE_AUTHOR("Andy Fleming");
@@ -409,6 +410,33 @@ int phy_unregister_fixup_for_id(const char *bus_id)
}
EXPORT_SYMBOL(phy_unregister_fixup_for_id);
+static int phy_mii_rd_ext(struct mii_bus *bus, int phy_id, u32 regnum)
+{
+ int ret;
+ int val;
+
+ ret = bus->write(bus, phy_id, REG_DEBUG_ADDR_OFFSET, regnum);
+ if (ret < 0)
+ return ret;
+
+ val = bus->read(bus, phy_id, REG_DEBUG_DATA);
+
+ return val;
+}
+
+static int phy_mii_wr_ext(struct mii_bus *bus, int phy_id, u32 regnum, u16 val)
+{
+ int ret;
+
+ ret = bus->write(bus, phy_id, REG_DEBUG_ADDR_OFFSET, regnum);
+ if (ret < 0)
+ return ret;
+
+ ret = bus->write(bus, phy_id, REG_DEBUG_DATA, val);
+
+ return ret;
+}
+
/* Returns 1 if fixup matches phydev in bus_id and phy_uid.
* Fixups can be set to match any in one or more fields.
*/
@@ -816,6 +844,50 @@ static int get_phy_c22_id(struct mii_bus *bus, int addr, u32 *phy_id)
return 0;
}
+int phy_set_out_125m(struct mii_bus* bus, int phy_id)
+{
+ int ret;
+ int val;
+
+ ret = phy_mii_wr_ext(bus, phy_id, 0xa012, 0xd0);
+ mdelay(100);
+ val = phy_mii_rd_ext(bus, phy_id, 0xa012);
+
+ if (val != 0xd0)
+ {
+ printk(KERN_INFO "phy_set_out_125m error\n");
+ return -1;
+ }
+
+ /* disable auto sleep */
+ val = phy_mii_rd_ext(bus, phy_id, 0x27);
+ if (val < 0)
+ return val;
+
+ val &= (~BIT(15));
+
+ ret = phy_mii_wr_ext(bus, phy_id, 0x27, val);
+ if (ret < 0)
+ return ret;
+
+ /* enable RXC clock when no wire plug */
+ val = phy_mii_rd_ext(bus, phy_id, 0xc);
+ if (val < 0)
+ return val;
+
+ /* ext reg 0xc.b[2:1]
+ 00-----25M from pll;
+ 01---- 25M from xtl;(default)
+ 10-----62.5M from pll;
+ 11----125M from pll(here set to this value)
+ */
+ val |= (3 << 1);
+ ret = phy_mii_wr_ext(bus, phy_id, 0xc, val);
+ printk(KERN_INFO "phy_set_out_125m, phy clk out, val=%#08x\n", val);
+
+ return ret;
+}
+
/**
* get_phy_device - reads the specified PHY device and returns its @phy_device
* struct
@@ -853,6 +925,15 @@ struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)
if (r)
return ERR_PTR(r);
+ if(phy_id == PHY_ID_YT8531)
+ {
+ r = phy_set_out_125m(bus, addr);
+ if (r<0)
+ {
+ printk (KERN_INFO "failed to set 125m clk out, ret=%d\n",r);
+ }
+ }
+
return phy_device_create(bus, addr, phy_id, is_c45, &c45_ids);
}
EXPORT_SYMBOL(get_phy_device);
diff --git a/include/linux/motorcomm_phy.h b/include/linux/motorcomm_phy.h
index facce6d..23cccca 100644
--- a/include/linux/motorcomm_phy.h
+++ b/include/linux/motorcomm_phy.h
@@ -14,6 +14,8 @@
#define _MOTORCOMM_PHY_H
#define MOTORCOMM_PHY_ID_MASK 0x00000fff
+#define MOTORCOMM_PHY_ID_8531_MASK 0xffffffff
+#define MOTORCOMM_MPHY_ID_MASK 0x0000ffff
#define PHY_ID_YT8010 0x00000309
#define PHY_ID_YT8510 0x00000109
@@ -21,6 +23,9 @@
#define PHY_ID_YT8512 0x00000118
#define PHY_ID_YT8512B 0x00000128
#define PHY_ID_YT8521 0x0000011a
+#define PHY_ID_YT8531S 0x4f51e91a
+#define PHY_ID_YT8531 0x4f51e91b
+#define PHY_ID_YT8618 0x0000e889
#define REG_PHY_SPEC_STATUS 0x11
#define REG_INT_MASK 0x12
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