AM3358: RMII ping fails in U-boot

Shine

Part Number: AM3358

Hello Champions,

Customer used AM3358 MII2 + KSZ8041 PHY, it can linkup successfully, but it can't ping in uboot.

The uboot version is 2018.07.

Can the MII2 be used in uboot?

Below are the circuit, pinmux, dts and log information.

Pinmux in uboot:

static struct module_pin_mux rmii2_pin_mux[] = {
{OFFSET(mdio_clk), MODE(0) | PULLUP_EN}, /* MDIO_CLK */
{OFFSET(mdio_data), MODE(0) | RXACTIVE | PULLUP_EN}, /* MDIO_DATA */
{OFFSET(gpmc_csn3), MODE(2) | RXACTIVE}, /* MII2_CRS *//* gpmc_csn3.rmmii2_crs_dv */
{OFFSET(gpmc_wpn), MODE(3) | RXACTIVE}, /* MII2_RXERR *//* gpmc_wpn.rmmii2_rxer */
{OFFSET(gpmc_a0), MODE(3)}, /* MII2_TXEN */ /* gpmc_a0.rmmii2_txen */
{OFFSET(gpmc_a4), MODE(3)}, /* MII1_TXD1 */ /* gpmc_a4.rmmii2_txd1 */
{OFFSET(gpmc_a5), MODE(3)}, /* MII1_TXD0 */ /* gpmc_a5.rmmii2_txd0 */
{OFFSET(gpmc_a10), MODE(3) | RXACTIVE}, /* MII1_RXD1 *//* gpmc_a10.rmmii2_rxd1 */
{OFFSET(gpmc_a11), MODE(3) | RXACTIVE}, /* MII1_RXD0 *//* gpmc_a11.rmmii2_rxd0 */
{OFFSET(mii1_col), MODE(1) | RXACTIVE}, /* RMII1_REFCLK *//* gpmc_a11.rmmii2_REFCLK */
{-1},
};

DTS：

/*net*/
cpsw_default: cpsw_default {
pinctrl-single,pins = <
AM33XX_IOPAD(0x840, PIN_OUTPUT_PULLDOWN | MUX_MODE3) /* gpmc_a0.rmmii2_txen */
AM33XX_IOPAD(0x854, PIN_OUTPUT_PULLDOWN | MUX_MODE3) /* gpmc_a5.rmmii2_txd0 */
AM33XX_IOPAD(0x850, PIN_OUTPUT_PULLDOWN | MUX_MODE3) /* gpmc_a4.rmmii2_txd1 */
AM33XX_IOPAD(0x874, PIN_INPUT_PULLDOWN | MUX_MODE3) /* gpmc_wpn.rmmii2_rxer */
AM33XX_IOPAD(0x888, PIN_INPUT_PULLDOWN | MUX_MODE2) /* gpmc_csn3.rmmii2_crs_dv */
AM33XX_IOPAD(0x86c, PIN_INPUT_PULLDOWN | MUX_MODE3) /* gpmc_a11.rmmii2_rxd0 */
AM33XX_IOPAD(0x868, PIN_INPUT_PULLDOWN | MUX_MODE3) /* gpmc_a11.rmmii2_rxd1 */
AM33XX_IOPAD(0x908, PIN_INPUT_PULLDOWN | MUX_MODE1) /* gpmc_a11.rmmii2_REFCLK */

>;
};

davinci_mdio_default: davinci_mdio_default {
pinctrl-single,pins = <
/* MDIO */
AM33XX_IOPAD(0x948, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0) /* mdio_data.mdio_data */
AM33XX_IOPAD(0x94c, PIN_OUTPUT_PULLUP | MUX_MODE0) /* mdio_clk.mdio_clk */
>;
};

gpio_mdio_default: gpio_mdio_default {
pinctrl-single,pins = <
/* MDIO via GPIO*/
AM33XX_IOPAD(0x948, PIN_INPUT | MUX_MODE7) /* mdio_data.mdio_data GPIO0_0*/
AM33XX_IOPAD(0x94c, PIN_OUTPUT| MUX_MODE7) /* mdio_clk.mdio_clk GPIO0_1 */
>;
};

&mac {
pinctrl-names = "default";
pinctrl-0 = <&cpsw_default>;
slaves = <1>; /* use only one emac if */
status = "okay";

mdio0: gpio {
compatible = "mdio-gpio";
pinctrl-names = "default";
pinctrl-0 = <&gpio_mdio_default>;

#address-cells = <1>;
#size-cells = <0>;
gpios = <&gpio0 1 GPIO_ACTIVE_HIGH /* MDIO-CLK */
&gpio0 0 GPIO_ACTIVE_HIGH>; /* MDIO-DATA */

phy0: ethernet-phy@1 {
reg = <0>;
};
};
};

&davinci_mdio {
pinctrl-names = "default";
pinctrl-0 = <&davinci_mdio_default>;
status = "disabled";
};&cpsw_emac1 {

phy_id = <&mdio0>,<2>;
phy-mode = "rmii";
};

&phy_sel {
rmii-clock-ext;
};

The log:

P:lib/initcall.c,L:25, F:initcall_run_list, i:37...
initcall: 8080f0f9 (relocated to bff480f9)
Net: F:net/eth-uclass.c, L:402, F:eth_initialize, start:
F:common/miiphyutil.c, L:66, F:miiphy_init, start:
F:drivers/net/phy/phy.c, L:474, F:phy_init, PHY USE Start:
F:drivers/net/phy/phy.c, L:512, F:phy_init, PHY USE CONFIG_PHY_MICREL_KSZ8XXX:
P:drivers/core/uclass.c,L:214, F:uclass_find_first_device, ...
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
F:drivers/core/uclass.c, L:219, F:uclass_find_first_device ret:0
F:drivers/core/uclass.c, L:228, F:uclass_find_first_device
F:drivers/core/uclass.c, L:569, F:uclass_first_device_check ret:0
P:drivers/core/device.c,L:322, F:device_probe, ...
F:drivers/core/device.c, L:354, F:device_probe
P:drivers/core/device.c,L:322, F:device_probe, ...
F:drivers/core/device.c, L:382, F:device_probe
uclass_find_device_by_seq: 0 -1
uclass_find_device_by_seq: 0 0
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
- -1 -1 'ethernet@4a100000'
- not found
F:drivers/net/cpsw.c, L:1360, F:cpsw_eth_ofdata_to_platdata
OF: ** translation for device ethernet@4a100000 **
OF: bus is default (na=1, ns=1) on ocp
OF: translating address: 0000104a
OF: parent bus is default (na=1, ns=1) on
OF: no ranges, 1:1 translation
OF: parent translation for: 00000000
OF: with offset: 1242562560
OF: one level translation: 0000104a
OF: reached root node
fdtdec_get_int: cpdma_channels: 0x8 (8)
fdtdec_get_int: slaves: 0x1 (1)
fdtdec_get_int: ale_entries: 0x400 (1024)
fdtdec_get_int: bd_ram_size: 0x2000 (8192)
fdtdec_get_int: mac_control: 0x20 (32)
gpio_get_list_count: Node 'ethernet@4a100000', property 'mode-gpios', GPIO count failed: -2
fdtdec_get_int: active_slave: 0x0 (0)
F:drivers/net/cpsw.c, L:1419, F:cpsw_eth_ofdata_to_platdata active_slave:0
fdtdec_get_addr_size_auto_noparent: fdtdec_get_addr_size_auto_parent: na=1, ns=1, fdtdec_get_addr_size_fixed: reg: addr=4a101000
fdtdec_lookup_phandle: phy-handle
fdtdec_get_int_array: phy_id
get_prop_check_min_len: phy_id
F:lib/fdtdec.c, L:676, F:fdtdec_get_int_array,prop_name:phy_id, array[0]:58
F:lib/fdtdec.c, L:676, F:fdtdec_get_int_array,prop_name:phy_id, array[1]:2
fdtdec_get_addr_size_auto_noparent: fdtdec_get_addr_size_auto_parent: na=1, ns=1, fdtdec_get_addr_size_fixed: reg: addr=44e10650
F:drivers/net/cpsw.c, L:1487, F:cpsw_eth_ofdata_to_platdata
fdtdec_lookup_phandle: syscon
OF: ** translation for device scm_conf@0 **
OF: bus is default (na=1, ns=1) on scm@210000
OF: translating address: 00000000
OF: parent bus is default (na=1, ns=1) on l4_wkup@44c00000
OF: walking ranges...
OF: default map, cp=0, s=8192, da=0
OF: parent translation for: 00002100
OF: with offset: 0
OF: one level translation: 00002100
OF: parent bus is default (na=1, ns=1) on ocp
OF: walking ranges...
OF: default map, cp=0, s=2621440, da=2162688
OF: parent translation for: 0000c044
OF: with offset: 2162688
OF: one level translation: 0000e144
OF: parent bus is default (na=1, ns=1) on
OF: no ranges, 1:1 translation
OF: parent translation for: 00000000
OF: with offset: 1155596288
OF: one level translation: 0000e144
OF: reached root node
F:drivers/net/cpsw.c, L:1066, F:_cpsw_register, 0
F:drivers/net/cpsw.c, L:1005, F:cpsw_slave_setup slave_num:0
F:drivers/net/cpsw.c, L:1020, F:cpsw_phy_init. phy_addr:2
ethernet@4a100000 connected to Micrel KSZ804
F:drivers/net/phy/phy.c, L:393, F:genphy_config
F:net/eth-uclass.c, L:420, F:eth_initialize
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
eth0: ethernet@4a100000

=> mii info
MII_PHYSID2 @ 0x0 = 0x1513
PHY_PHYIDR[1,2] @ 0x0 = 0x00221513
PHY 0x00: OUI = 0x0885, Model = 0x11, Rev = 0x03, 10baseT, HDX
PHY ID register 2 read failed
MII_PHYSID2 @ 0x2 = 0x1513
PHY_PHYIDR[1,2] @ 0x2 = 0x00221513
PHY 0x02: OUI = 0x0885, Model = 0x11, Rev = 0x03, 10baseT, HDX
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
PHY ID register 2 read failed
=> setenv ipaddr 172.30.131.108
Initial value for argc=3
Final value for argc=3
=> ping 172.30.131.73
F:net/net.c, L:412, F:net_loop protocol:5
--- net_loop Entry
--- net_loop UDP handler set (00000000)
--- net_loop ARP handler set (00000000)
--- net_loop timeout handler cancelled
F:net/eth-uclass.c, L:68, F:eth_get_dev, start:
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
P:drivers/core/uclass.c,L:214, F:uclass_find_first_device, ...
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
F:drivers/core/uclass.c, L:219, F:uclass_find_first_device ret:0
F:drivers/core/uclass.c, L:228, F:uclass_find_first_device
P:drivers/core/uclass.c,L:408, F:uclass_get_device_tail, ...
P:drivers/core/device.c,L:322, F:device_probe, ...
F:net/eth-uclass.c, L:68, F:eth_get_dev, start:
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
F:net/eth-uclass.c, L:68, F:eth_get_dev, start:
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
F:net/net.c, L:359, F:net_init_loop net_ethaddr:0x a8.10.87.b4.3f.5f
F:net/eth-uclass.c, L:68, F:eth_get_dev, start:
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
F:drivers/net/cpsw.c, L:783, F:cpdma_process start
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
F:net/eth-uclass.c, L:68, F:eth_get_dev, start:
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
P:drivers/core/uclass.c,L:214, F:uclass_find_first_device, ...
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
F:drivers/core/uclass.c, L:219, F:uclass_find_first_device ret:0
F:drivers/core/uclass.c, L:228, F:uclass_find_first_device
P:drivers/core/uclass.c,L:408, F:uclass_get_device_tail, ...
P:drivers/core/device.c,L:322, F:device_probe, ...
F:net/eth-uclass.c, L:68, F:eth_get_dev, start:
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
F:net/eth-uclass.c, L:68, F:eth_get_dev, start:
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
Initial value for argc=3
Final value for argc=3
F:net/eth-uclass.c, L:68, F:eth_get_dev, start:
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
Trying ethernet@4a100000
F:drivers/net/cpsw.c, L:823, F:_cpsw_init
F:drivers/net/cpsw.c, L:669, F:cpsw_update_link
F:drivers/net/cpsw.c, L:623, F:cpsw_slave_update_link
F:drivers/net/phy/phy.c, L:226, F:genphy_update_link
F:drivers/net/phy/phy.c, L:234, F:genphy_update_link. mii_reg: 0x786d
link up on port 0, speed 100, full duplex
F:drivers/net/cpsw.c, L:867, F:_cpsw_init
F:drivers/net/cpsw.c, L:734, F:cpdma_submit
F:drivers/net/cpsw.c, L:734, F:cpdma_submit
F:drivers/net/cpsw.c, L:734, F:cpdma_submit
F:drivers/net/cpsw.c, L:734, F:cpdma_submit
--- NetState set to 0
--- net_loop Init
F:net/eth-uclass.c, L:68, F:eth_get_dev, start:
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
F:net/eth-uclass.c, L:68, F:eth_get_dev, start:
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
F:net/eth-uclass.c, L:68, F:eth_get_dev, start:
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
F:net/net.c, L:359, F:net_init_loop net_ethaddr:0x a8.10.87.b4.3f.5f
F:net/eth-uclass.c, L:68, F:eth_get_dev, start:
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
F:net/eth-uclass.c, L:68, F:eth_get_dev, start:
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
Using ethernet@4a100000 device
--- net_loop timeout handler set (bff891e1)
sending ARP for 172.30.131.73
ARP broadcast 1
F:net/eth-uclass.c, L:337, F:eth_send, start:
F:net/eth-uclass.c, L:68, F:eth_get_dev, start:
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
F:drivers/net/cpsw.c, L:1174, F:cpsw_eth_send
F:drivers/net/cpsw.c, L:966, F:_cpsw_send
F:drivers/net/cpsw.c, L:783, F:cpdma_process start
F:drivers/net/cpsw.c, L:734, F:cpdma_submit
F:net/eth-uclass.c, L:363, F:eth_rx, start:
F:net/eth-uclass.c, L:68, F:eth_get_dev, start:
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
F:drivers/net/cpsw.c, L:1184, F:cpsw_eth_recv
F:drivers/net/cpsw.c, L:986, F:_cpsw_recv
F:drivers/net/cpsw.c, L:783, F:cpdma_process start
F:drivers/net/cpsw.c, L:790, F:cpdma_process status:-536869390
F:drivers/net/cpsw.c, L:794, F:cpdma_process start
F:net/eth-uclass.c, L:377, F:eth_rx eth_get_ops:-16
eth_rx: recv() returned error -16

--- net_loop UDP handler set (00000000)
--- net_loop ARP handler set (00000000)
--- net_loop timeout handler cancelled
F:net/eth-uclass.c, L:68, F:eth_get_dev, start:
F:drivers/core/uclass.c, L:36, F:uclass_find name:usb_dev_generic
F:drivers/core/uclass.c, L:36, F:uclass_find name:eth
F:drivers/core/uclass.c, L:151, F:uclass_get
F:drivers/core/uclass.c, L:156, F:uclass_get
F:drivers/net/cpsw.c, L:783, F:cpdma_process start
F:drivers/net/cpsw.c, L:790, F:cpdma_process status:-805306308
F:drivers/net/cpsw.c, L:783, F:cpdma_process start

Abort
--- net_loop Abort!
--- NetState set to 0
ping failed; host 172.30.131.73 is not alive
Command failed, result=1
=> mdio list
ethernet@4a100000:
2 - Micrel KSZ804 <--> ethernet@4a100000

Thanks.
Rgds

Shine

over 6 years ago

0 Andreas Dannenberg over 6 years ago

TI__Guru 70652 points

Shine,

can you use Wireshark on the host PC to see if you get the ARP request from the AM335x as a result of the U-Boot 'ping' command?

Regards, Andreas

0 user6317248 over 6 years ago in reply to Andreas Dannenberg

Prodigy 10 points

Hello:

Wireshark receive nothing from AM335x.

When am335x ping, scope can not capture any signal waveform on mii2_txd0 and mii2_txd1, between am3358 and PHY (KSZ8041).

when host ping, scope capture waveform on mii2_rxd0 and mii2_rxd1, between am3358 and PHY (KSZ8041).

0 Andreas Dannenberg over 6 years ago in reply to user6317248

TI__Guru 70652 points

user6317248 said:

Wireshark receive nothing from AM335x.

When am335x ping, scope can not capture any signal waveform on mii2_txd0 and mii2_txd1, between am3358 and PHY (KSZ8041).

when host ping, scope capture waveform on mii2_rxd0 and mii2_rxd1, between am3358 and PHY (KSZ8041).

Thanks for that info. I'm currently out of the office until later next week but I've asked one of my colleagues to have a look at this thread to see if he may have additional suggestions to try out until I'm back.

Regards, Andreas

0 Andreas Dannenberg over 6 years ago in reply to user6317248

TI__Guru 70652 points

user6317248 said:
=> mii info
<...>
PHY 0x00: OUI = 0x0885, Model = 0x11, Rev = 0x03, 10baseT, HDX
<...>
PHY 0x02: OUI = 0x0885, Model = 0x11, Rev = 0x03, 10baseT, HDX

I had a closer look and noticed that you have two of those PHYs in your system, using both MMI1 and MMI2?

Does the PHY0 connected via MMI1 work?

Also, can you measure the TXC signal with an oscilloscope? Does it show a valid frequency (2.5MHz or 25MHz)?

Then, can you double-check your CPSW platform data matches your PHY setup? (see here as an example: https://git.ti.com/cgit/processor-sdk/processor-sdk-u-boot/tree/board/ti/am335x/board.c?h=processor-sdk-u-boot-2019.01#n902)

Then, can you try dumping your PHY2 registers using 'mii dump 2 0' and 'mii dump 2 1' to get some basic device status.

Also there is a helpful training here that contains a section on network bringup in U-Boot: https://training.ti.com/sites/default/files/docs/ETH_System_SW_on_AMClass_Devices.pdf

Regards, Andreas

Processors

Processors forum

AM3358: RMII ping fails in U-boot