香橙派orangepi 4 lts的u-boot使能YT8531C网卡驱动
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香橙派orangepi 4 lts开发板的有线网卡是裕泰YT8531C，最近想在u-boot中开启有线网络功能，以便使用tftp加载内核和设备树。
orangepi-build的u-boot中默认已经使能了gmac，
arch/arm/dts/rk3399-orangepi-4.dts
&gmac {
phy-supply = <&vcc_phy>;
phy-mode = "rgmii";
clock_in_out = "input";
snps,reset-gpio = <&gpio3 RK_PB7 GPIO_ACTIVE_LOW>;
snps,reset-active-low;
snps,reset-delays-us = <0 10000 50000>;
assigned-clocks = <&cru SCLK_RMII_SRC>;
assigned-clock-parents = <&clkin_gmac>;
pinctrl-names = "default";
pinctrl-0 = <&rgmii_pins>;
tx_delay = <0x28>;
rx_delay = <0x11>;
status = "okay";
};
所以只需要添加phy驱动。
进入orangepi-build/u-boot/v2020.10-rockchip64目录。
在driver/net/phy/Makefile中加入
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index 6e722331..103d58cb 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -33,3 +33,4 @@ obj-$(CONFIG_PHY_VITESSE) += vitesse.o
obj-$(CONFIG_PHY_MSCC) += mscc.o
obj-$(CONFIG_PHY_FIXED) += fixed.o
obj-$(CONFIG_PHY_NCSI) += ncsi.o
+obj-$(CONFIG_PHY_YUTAI) += motorcomm.o
在driver/net/phy/Kconfig中加入
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 4e1a93be..7ef159c9 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -247,6 +247,9 @@ config RTL8201F_PHY_S700_RMII_TIMINGS
config PHY_SMSC
bool "Microchip(SMSC) Ethernet PHYs support"
+config PHY_YUTAI
+ bool "YUTAI Ethernet PHYs support"
+
config PHY_TERANETICS
bool "Teranetics Ethernet PHYs support"
在driver/net/phy/phy.c中加入
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index f6d478fd..e85919f8 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -553,6 +553,9 @@ int phy_init(void)
#endif
#ifdef CONFIG_PHY_XILINX_GMII2RGMII
phy_xilinx_gmii2rgmii_init();
+#endif
+#ifdef CONFIG_PHY_YUTAI
+ phy_yutai_init();
#endif
genphy_init();
u-boot中yt8531c 驱动driver/net/phy/motorcomm.c，参考u-boot中的realtek和linux中的yt8531c驱动创建如下：
#include <common.h>
#include <linux/bitops.h>
#include <phy.h>
#include <linux/delay.h>
#define PHY_ID_YT8531 0x4f51e91b
#define MOTORCOMM_PHY_ID_MASK 0x00000fff
/* yt8531c PHY Status Register */
#define REG_PHY_SPEC_STATUS 0x11
#define REG_DEBUG_ADDR_OFFSET 0x1e
#define REG_DEBUG_DATA 0x1f
#define EXTREG_SLEEP_CONTROL 0x27
#define EXTREG_SYNCE_CFG 0xa012
#define PHY_AUTONEGOTIATE_TIMEOUT 5000
#define YT8531_SPEED_MODE_BIT_MASK 0xc000
#define YT8531_PHYSTAT_1000_BIT 0x8000
#define YT8531_PHYSTAT_100_BIT 0x4000
#define YT8531_DUPLEX_BIT_MASK 0x2000
#define YT8531_LINK_STATUS_BIT_MASK 0x0400
static int ytphy_read_ext(struct phy_device *phydev, int regnum)
{
int ret;
int val;
ret = phy_write(phydev, MDIO_DEVAD_NONE, REG_DEBUG_ADDR_OFFSET, regnum);
if (ret < 0)
return ret;
val = phy_read(phydev, MDIO_DEVAD_NONE, REG_DEBUG_DATA);
return val;
}
static int ytphy_write_ext(struct phy_device *phydev, int regnum, u16 val)
{
int ret;
ret = phy_write(phydev, MDIO_DEVAD_NONE, REG_DEBUG_ADDR_OFFSET, regnum);
if (ret < 0)
return ret;
ret = phy_write(phydev, MDIO_DEVAD_NONE, REG_DEBUG_DATA, val);
return ret;
}
static int yt8531c_probe(struct phy_device *phydev)
{
#ifdef CONFIG_YT8531C_PHY_FORCE_EEE_RXC_ON
phydev->flags |= PHY_YT8531C_FORCE_EEE_RXC_ON;
#endif
return 0;
}
int yt8531_config_out_125m(struct phy_device *phydev)
{
int val;
int ret;
mdelay(100);
ytphy_write_ext(phydev, EXTREG_SYNCE_CFG, 0xd0);
mdelay(100);
val = ytphy_read_ext(phydev, EXTREG_SYNCE_CFG);
if (val != 0xd0) {
printf("yt8531 config out 125m error\n");
return -1;
}
/* disable auto sleep */
val = ytphy_read_ext(phydev, EXTREG_SLEEP_CONTROL);
val &= (~BIT(15));
ret = ytphy_write_ext(phydev, EXTREG_SLEEP_CONTROL, val);
if (ret < 0)
return ret;
/* enable RXC clock when no wire plug */
val = ytphy_read_ext(phydev, 0xc);
if (val < 0)
return val;
val |= (3 << 1);
ret = ytphy_write_ext(phydev, 0xc, val);
//printf("yt8531 config out 125m, phy clk out, val = %#08x\n", val);
return ret;
}
static int yt8531c_config(struct phy_device *phydev)
{
int ret;
printf("YT8531C\n");
ret = yt8531_config_out_125m(phydev);
genphy_config_aneg(phydev);
return ret;
}
static int yt8531c_parse_status(struct phy_device *phydev)
{
unsigned int speed;
unsigned int mii_reg;
int i = 0;
mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, REG_PHY_SPEC_STATUS);
phydev->link = 1;
while (!(mii_reg & YT8531_LINK_STATUS_BIT_MASK)) {
if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
puts(" TIMEOUT !\n");
phydev->link = 0;
break;
}
if ((i++ % 1000) == 0)
putc('.');
udelay(1000);
mii_reg = phy_read(phydev, MDIO_DEVAD_NONE,
REG_PHY_SPEC_STATUS);
}
if (mii_reg & YT8531_DUPLEX_BIT_MASK)
phydev->duplex = DUPLEX_FULL;
else
phydev->duplex = DUPLEX_HALF;
speed = (mii_reg & YT8531_SPEED_MODE_BIT_MASK);
switch (speed) {
case YT8531_PHYSTAT_1000_BIT:
phydev->speed = SPEED_1000;
break;
case YT8531_PHYSTAT_100_BIT:
phydev->speed = SPEED_100;
break;
default:
phydev->speed = SPEED_10;
}
return 0;
}
static int yt8531c_startup(struct phy_device *phydev)
{
int ret;
ret = genphy_update_link(phydev);
if (ret)
return ret;
/* Read the Status (2x to make sure link is right) */
return yt8531c_parse_status(phydev);
}
/* Support for yt8531c PHY */
static struct phy_driver yt8531c_driver = {
.name = "YUTAI yt8531c",
.uid = PHY_ID_YT8531,
.mask = MOTORCOMM_PHY_ID_MASK,
.features = PHY_GBIT_FEATURES,
.probe = &yt8531c_probe,
.config = &yt8531c_config,
.startup = &yt8531c_startup,
.shutdown = &genphy_shutdown,
.readext = &ytphy_read_ext,
.writeext = &ytphy_write_ext,
};
int phy_yutai_init(void)
{
phy_register(&yt8531c_driver);
return 0;
}
现在u-boot中已经可以使用有线网络了。
U-Boot 2020.10-orangepi (Mar 24 2024 - 15:34:14 +0800)
Model: OrangePi 4 AI board
DRAM: 3.9 GiB
MMC: mmc@fe320000: 1, sdhci@fe330000: 0
Loading Environment from MMC... OK
In: serial
Out: serial
Err: serial
Model: OrangePi 4 AI board
Net: YT8531C
eth0: ethernet@fe300000
Hit any key to stop autoboot: 0
=>
=>
=> ping 192.168.2.9
Speed: 1000, full duplex
Using ethernet@fe300000 device
host 192.168.2.9 is alive
=>
=> tftp 20008000 uImage
Speed: 1000, full duplex
Using ethernet@fe300000 device
TFTP from server 192.168.2.9; our IP address is 192.168.2.88
Filename 'uImage'.
Load address: 0x20008000
Loading: #################################################################
#################################################################
#################################################################
#################################################################
#####################################
4.3 MiB/s
done
Bytes transferred = 4345760 (424fa0 hex)
=>
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