U-Boot and Fixed PHY Support

Hi Mark,

Can you please share your changes in u-boot to reproduce the issue from my end.

Thanks
Vignesh R

Hi Vignesh,

Thank you for your reply.

Please see the below, if you need anything further please let me know.

Regards,
Mark

Date: Fri, 14 Jan 2022 16:34:09 +0100
Subject: [PATCH] Remove phy handling

---
 board/adi/sc589-mini/sc589-mini.c | 19 -------------------
 include/configs/sc589-mini.h      |  1 -
 2 files changed, 20 deletions(-)

diff --git a/board/adi/sc589-mini/sc589-mini.c b/board/adi/sc589-mini/sc589-mini.c
index 61aaf62..8959f9f 100644
--- a/board/adi/sc589-mini/sc589-mini.c
+++ b/board/adi/sc589-mini/sc589-mini.c
@@ -96,25 +96,6 @@ int board_eth_init(bd_t *bis)
 
 int board_phy_config(struct phy_device *phydev)
 {
-	int  phy_data = 0;
-
-	/* enable RGMII mode */
-	phy_data = phy_read(phydev, MDIO_DEVAD_NONE, 0x32);
-	phy_write(phydev, MDIO_DEVAD_NONE, 0x32, (1 << 7) | phy_data);
-#ifdef CONFIG_PHY_TI
-	int cfg3 = 0;
-	#define MII_DP83867_CFG3    (0x1e)
-	/*
-	 * Pin INT/PWDN on DP83867 should be configured as an Interrupt Output
-	 * instead of a Power-Down Input on ADI SC5XX boards in order to
-	 * prevent the signal interference from other peripherals during they
-	 * are running at the same time.
-	 */
-	 cfg3 = phy_read(phydev, MDIO_DEVAD_NONE, MII_DP83867_CFG3);
-	 cfg3 |= (1 << 7);
-	 phy_write(phydev, MDIO_DEVAD_NONE, MII_DP83867_CFG3, cfg3);
-#endif
-
 	if (phydev->drv->config)
 		phydev->drv->config(phydev);
 
diff --git a/include/configs/sc589-mini.h b/include/configs/sc589-mini.h
index 304012f..3f8644e 100644
--- a/include/configs/sc589-mini.h
+++ b/include/configs/sc589-mini.h
@@ -123,7 +123,6 @@
 #define CONFIG_DW_AXI_BURST_LEN 16
 #define CONFIG_MII
 #define CONFIG_PHYLIB
-#define CONFIG_PHY_TI
 #define CONFIG_ETHADDR	02:80:ad:20:31:e8
 
 /*
-- 
2.7.4

Date: Mon, 13 Sep 2021 11:26:23 +0200
Subject: [PATCH] Update dtb name for fixed phy model


---
 include/configs/sc589-mini.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/configs/sc589-mini.h b/include/configs/sc589-mini.h
index 3f8644e..12f735b 100644
--- a/include/configs/sc589-mini.h
+++ b/include/configs/sc589-mini.h
@@ -115,7 +115,7 @@
 #define ADI_CMDS_NETWORK
 #define CONFIG_NETCONSOLE
 #define CONFIG_NET_MULTI
-#define CONFIG_DTBNAME		"sc589-mini.dtb"
+#define CONFIG_DTBNAME		"sc589-mini-fixed-phy.dtb"
 #define CONFIG_HOSTNAME		"sc58x"
 #define CONFIG_DESIGNWARE_ETH
 #define CONFIG_DW_AUTONEG
-- 
2.7.4

Date: Tue, 7 Sep 2021 09:11:56 +0200
Subject: [PATCH] Disable TI phy

---
 include/configs/sc589-mini.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/include/configs/sc589-mini.h b/include/configs/sc589-mini.h
index 304012f..3f8644e 100644
--- a/include/configs/sc589-mini.h
+++ b/include/configs/sc589-mini.h
@@ -123,7 +123,6 @@
 #define CONFIG_DW_AXI_BURST_LEN 16
 #define CONFIG_MII
 #define CONFIG_PHYLIB
-#define CONFIG_PHY_TI
 #define CONFIG_ETHADDR	02:80:ad:20:31:e8
 
 /*
-- 
2.7.4

Hi Mark,

I have removed the TI phy handling as below and I could ping another machine from sc589-mini board.

Please find the below changes and log.

diff --git a/board/adi/sc589-mini/sc589-mini.c b/board/adi/sc589-mini/sc589-mini.c
index 61aaf62..95f5b23 100644
--- a/board/adi/sc589-mini/sc589-mini.c
+++ b/board/adi/sc589-mini/sc589-mini.c
@@ -96,24 +96,6 @@ int board_eth_init(bd_t *bis)
 
 int board_phy_config(struct phy_device *phydev)
 {
-       int  phy_data = 0;
-
-       /* enable RGMII mode */
-       phy_data = phy_read(phydev, MDIO_DEVAD_NONE, 0x32);
-       phy_write(phydev, MDIO_DEVAD_NONE, 0x32, (1 << 7) | phy_data);
-#ifdef CONFIG_PHY_TI
-       int cfg3 = 0;
-       #define MII_DP83867_CFG3    (0x1e)
-       /*
-        * Pin INT/PWDN on DP83867 should be configured as an Interrupt Output
-        * instead of a Power-Down Input on ADI SC5XX boards in order to
-        * prevent the signal interference from other peripherals during they
-        * are running at the same time.
-        */
-        cfg3 = phy_read(phydev, MDIO_DEVAD_NONE, MII_DP83867_CFG3);
-        cfg3 |= (1 << 7);
-        phy_write(phydev, MDIO_DEVAD_NONE, MII_DP83867_CFG3, cfg3);
-#endif
 
        if (phydev->drv->config)
                phydev->drv->config(phydev);
diff --git a/include/configs/sc589-mini.h b/include/configs/sc589-mini.h
index 304012f..3f8644e 100644
--- a/include/configs/sc589-mini.h
+++ b/include/configs/sc589-mini.h
@@ -123,7 +123,6 @@
 #define CONFIG_DW_AXI_BURST_LEN 16
 #define CONFIG_MII
 #define CONFIG_PHYLIB
-#define CONFIG_PHY_TI
 #define CONFIG_ETHADDR 02:80:ad:20:31:e8
 
 /*

resetting ...


U-Boot 2015.01 ADI-YOCTO-1.0.0 (Feb 04 2022 - 12:52:16)

CPU:   ADSP ADSP-SC589-0.1 (Detected Rev: 1.1) (spi flash boot)
VCO: 450 MHz, Cclk0: 450 MHz, Sclk0: 112.500 MHz, Sclk1: 112.500 MHz, DCLK: 450 MHz
OCLK: 150 MHz
       Watchdog enabled
I2C:   ready
DRAM:  224 MiB
MMC:   SC5XX SDH: 0
SF: Detected IS25LP512 with page size 256 Bytes, erase size 64 KiB, total 64 MiB
In:    serial
Out:   serial
Err:   serial
other init
Net:   dwmac.3100c000
Hit any key to stop autoboot:  0 

sc # mdio list
dwmac.3100c000:
0 - Generic PHY <--> dwmac.3100c000

sc # ping $serverip 
Speed: 1000, full duplex
Using dwmac.3100c000 device
host xxx.xx.10.76 is alive

Thanks

Vignesh R

Hi Vignesh, 

Thank you for your replay, Does your board have a PHY attached?  I think it is auto negotiating and allowing the port to be enabled, in our design there is no PHY so we need to force it to 1000/FULL.

Can you please advise how this is possible or another solution for a fixed PHY option (direct link to switch).

Regards,

Mark

Hi, we managed to fix this by fixing the link to 1000/full in the driver.

Hi, we managed to fix this by fixing the link to 1000/full in the driver.