AM4377: RMII Ethernet not available in U-boot

mrxiao2017

Part Number: AM4377

The AM4377 uses the RMII interface to connect to the DP83848 and connects to the computer via a network cable (the network card is the Intel(R) PRO/1000 MT Dual Port Server Adapter).
Uboot network port is not available, please help us to see if the hardware pin connection and pinmux configuration is normal? Thank youchematic reference annex:
Serial port printing reference attachment:（uboot use ti-processor-sdk-linux-am437x-evm-03.02.00.05-Linux-x86-Install.bin）

Pinmux settings:
static struct module_pin_mux rmii2_pin_mux[] = {
{OFFSET(gpmc_a0), MODE(3)| SLEWCTRL}, /* RMII2_TXEN：*/
{OFFSET(gpmc_a4), MODE(3)| SLEWCTRL}, /* RMII2_TXD1：*/
{OFFSET(gpmc_a5), MODE(3)| SLEWCTRL}, /* RMII2_TXD0：*/
{OFFSET(gpmc_a10), MODE(3) | SLEWCTRL | RXACTIVE}, /* RMII2_RXD1：*/
{OFFSET(gpmc_a11), MODE(3) | SLEWCTRL | RXACTIVE}, /* RMII2_RXD0：*/
{OFFSET(gpmc_wait0), MODE(3) | PULLUP_EN | RXACTIVE}, /* RMII2_CRS_DV：*/
{OFFSET(gpmc_wpn), MODE(3) | SLEWCTRL | RXACTIVE}, /* RMII2_RXER：*/
{OFFSET(mii1_col), MODE(1) | RXACTIVE}, /* RMII2_refclk：*/
{-1},
};

other setting：
1）auto negotiation enabled on both ends of the link，The PC's Network card has also been set to auto-negotiation mode.
2）the link speeds is 100 Mbps.The PC's Network card rate query is also 100M.
3）Full Duplex mode is correct.
CRSC># mdio read 0-7 （----when uboot）
Reading from bus cpsw
PHY at address 1:
0 - 0x3100 --ok
1 - 0x786d
2 - 0x2000
3 - 0x5c90
4 - 0x1e1
5 - 0xc1e1 --1 = Link Partner desires Next Page Transfer.
6 - 0xf --1 = Link Partner does support Next Page
7 - 0x2801
CRSC># md 4a100900
4a100900: 00000000 00000000 00000000 00000000 ................
4a100910: 00000000 00000000 00000000 00000000 ................
4a100920: 00000000 00000000 00000000 00000000 ................
4a100930: 00000000 00000000 00000000 00000000 ................
4a100940: 00000000 00000000 00000000 00000000 ................
4a100950: 00000000 00000000 00000000 00000000 ................
4a100960: 00000000 00000000 00000000 00000000 ................
4a100970: 00000000 00000000 00000000 00000000 ................
4a100980: 00000000 00000000 00000000 00000000 ................

uboot code modified：

thank you！

over 6 years ago

0 Schuyler Patton over 6 years ago

TI__Mastermind 41170 points

Hi,

Thank you for posting the MII registers, just to make sure I am reading correctly, could you please just post the results of these two commands?

mii dump 0 0

mii dump 0 1

I think the registers are showing link status detected but I want to make sure. The HW statistics area looks like it is showing no traffic.

A quick review of the pin mux looks to be incorrect, it looks like the rx data valid pin is missing. I will review the pin mux and respond to this post.

Best Regards,

Schuyler

0 mrxiao2017 over 6 years ago in reply to Schuyler Patton

Prodigy 200 points

thanks for id="fragment-1a84591e31034fac832d29ed8584666c1956960502_code-editor-fs">Fullscreen href="https://e2e.ti.com/cfs-filesystemfile/__key/communityserver-discussions-components-files/791/miiDumpInfo.txt?_=637012547820000000" title="Download miiDumpInfo.txt">miiDumpInfo.txt href="https://e2e.ti.com/cfs-filesystemfile/__key/communityserver-discussions-components-files/791/miiDumpInfo.txt?_=637012547820000000" title="Download miiDumpInfo.txt">Download nt-1a84591e31034fac832d29ed8584666c1956960502_code-editor" ght:922px;min-width:1230px;margin:0px;" r="true">thanks for your reply! port 0, speed 100, full duplex count exceeded; starting again host 192.168.1.11 is not alive 00000000 00000000 00000000 00000000 ................ 00000000 00000000 00000000 00000000 ................ 00000000 00000000 00000000 00000000 ................ 00000000 00000000 00000000 00000000 ................ 00000000 00000000 00000000 00000000 ................ 00000000 00000000 00000000 00000000 ................ 00000000 00000000 00000000 00000000 ................ 00000000 00000000 00000000 00000000 ................ 00000000 00000000 00000000 00000000 ................ 00000000 00000000 00000000 00000000 ................ 00000000 00000000 00000000 00000000 ................ 00000000 00000000 00000000 00000000 ................ 00000000 00000000 00000000 00000000 ................ 00000000 00000000 00000000 00000000 ................ 00000000 00000000 00000000 00000000 ................ 00000000 00000000 00000000 00000000 ................ from the PHY addr=00 reg=00 from the PHY addr=00 reg=01 -- PHY control register -- 0 reset 0 loopback b01 speed selection = 100 Mbps 1 A/N enable 0 power-down 0 isolate 0 restart A/N 1 duplex = full 0 collision test enable 0 (reserved) -- PHY status register -- 0 100BASE-T4 able 1 100BASE-X full duplex able 1 100BASE-X half duplex able 1 10 Mbps full duplex able 1 10 Mbps half duplex able 0 100BASE-T2 full duplex able 0 100BASE-T2 half duplex able 0 extended status 0 (reserved) 1 MF preamble suppression 1 A/N complete 0 remote fault 1 A/N able 1 link status 0 jabber detect 1 extended capabilities -- PHY status register -- 0 100BASE-T4 able 1 100BASE-X full duplex able 1 100BASE-X half duplex able 1 10 Mbps full duplex able 1 10 Mbps half duplex able 0 100BASE-T2 full duplex able 0 100BASE-T2 half duplex able 0 extended status 0 (reserved) 1 MF preamble suppression 1 A/N complete 0 remote fault 1 A/N able 1 link status 0 jabber detect 1 extended capabilities from the PHY addr=00 reg=01 -- PHY ID 1 register -- OUI portion -- PHY ID 2 register -- 23 OUI portion 9 manufacturer part number 0 manufacturer rev. number -- Autonegotiation advertisement register -- 0 next page able 0 (reserved) 0 remote fault 0 (reserved) 0 asymmetric pause 0 pause enable 0 100BASE-T4 able 1 100BASE-TX full duplex able 1 100BASE-TX able 1 10BASE-T full duplex able 1 10BASE-T able 1 selector = IEEE 802.3 -- Autonegotiation partner abilities register -- 1 next page able 1 acknowledge 0 remote fault 0 (reserved) 0 asymmetric pause able 0 pause able 0 100BASE-T4 able 1 100BASE-X full duplex able 1 100BASE-TX able 1 10BASE-T full duplex able 1 10BASE-T able 1 selector = IEEE 802.3 command only formats the standard MII registers, 0-5. = j('#fragment-1a84591e31034fac832d29ed8584666c1956960502_code-editor-fs'); = j('#fragment-1a84591e31034fac832d29ed8584666c1956960502_code-editor'); le.on('click', function(){ (codeEditor.evolutionCodeEditor('fullscreen')) { codeEditor.evolutionCodeEditor('fullscreen', false); codeEditor.evolutionCodeEditor('fullscreen', true);

CRSC># mii dump 1 0
0. (3100) -- PHY control register --
(8000:0000) 0.15 = 0 reset
(4000:0000) 0.14 = 0 loopback
(2040:2000) 0. 6,13 = b01 speed selection = 100 Mbps
(1000:1000) 0.12 = 1 A/N enable
(0800:0000) 0.11 = 0 power-down
(0400:0000) 0.10 = 0 isolate
(0200:0000) 0. 9 = 0 restart A/N
(0100:0100) 0. 8 = 1 duplex = full
(0080:0000) 0. 7 = 0 collision test enable
(003f:0000) 0. 5- 0 = 0 (reserved)

CRSC># mii dump 1 1
1. (786d) -- PHY status register --
(8000:0000) 1.15 = 0 100BASE-T4 able
(4000:4000) 1.14 = 1 100BASE-X full duplex able
(2000:2000) 1.13 = 1 100BASE-X half duplex able
(1000:1000) 1.12 = 1 10 Mbps full duplex able
(0800:0800) 1.11 = 1 10 Mbps half duplex able
(0400:0000) 1.10 = 0 100BASE-T2 full duplex able
(0200:0000) 1. 9 = 0 100BASE-T2 half duplex able
(0100:0000) 1. 8 = 0 extended status
(0080:0000) 1. 7 = 0 (reserved)
(0040:0040) 1. 6 = 1 MF preamble suppression
(0020:0020) 1. 5 = 1 A/N complete
(0010:0000) 1. 4 = 0 remote fault
(0008:0008) 1. 3 = 1 A/N able
(0004:0004) 1. 2 = 1 link status
(0002:0000) 1. 1 = 0 jabber detect
(0001:0001) 1. 0 = 1 extended capabilities

0 mrxiao2017 over 6 years ago in reply to Schuyler Patton

Prodigy 200 points

When ping or tftp fails, it will enter the halt process and cpsw softreset, so the check register is not counted.
add read reg before halt：but the count is still=0.
CRSC># ping 192.168.1.11
_cpsw_halt;
_cpsw_get_stats base0x900:
0(0),0(4),0(8),0(c),0(10),0(14),0(18),0(1c),
0(20),0(24),0(28),0(2c),0(30),0(34),0(38),0(3c),
0(40),0(44),0(48),0(4c),0(50),0(54),0(58),0(5c),
0(60),0(64),0(68),0(6c),0(70),0(74),0(78),0(7c),
0(80),0(84),0(88),0(8c),Trying cpsw
_cpsw_init b0:d5:cc:73:cd:6c;
link up on port 0, speed 100, full duplex
Using cpsw device
send 42;
send 42;
send 42;
...

ARP Retry count exceeded; starting again
_cpsw_halt;
_cpsw_get_stats base0x900:
0(0),0(4),0(8),0(c),0(10),0(14),0(18),0(1c),
0(20),0(24),0(28),0(2c),0(30),0(34),0(38),0(3c),
0(40),0(44),0(48),0(4c),0(50),0(54),0(58),0(5c),
0(60),0(64),0(68),0(6c),0(70),0(74),0(78),0(7c),
0(80),0(84),0(88),0(8c),ping failed; host 192.168.1.11 is not alive
Command failed, result=1
CRSC>#

0 Schuyler Patton over 6 years ago in reply to mrxiao2017

TI__Mastermind 41170 points

Hi,

I apologize since I am not sure I am following the console output. This is u-boot code correct? Have you added code? Turned on Debug? I see you included some files as reference, the board file for example. Could you please re-post as an attachment of each file using git diff against the original file?

How are these value getting set? Through a DHCP command?

gateway=192.168.1.1
ipaddr=192.168.1.2
netmask=255.255.255.0
serverip=192.168.1.11

Best Regards,

Schuyler

0 mrxiao2017 over 6 years ago in reply to Schuyler Patton

Prodigy 200 points

Thank you for your reply, the problem has been resolved, we need to set active_slave=1 （use RMII2 without DM_ETH）

CRSC># ping 192.168.1.11
cpsw_halt;
_cpsw_get_ss base0x4a100000,ofs0x0:
0x0:19010f,0,0,0,
_cpsw_get_stats ofs0x900:
0x0:0,0,0,0,0,0,0,0,
0x20:0,0,0,0,0,0,0,0,
0x40:0,0,0,0,0,0,0,0,
0x60:0,0,0,0,0,0,0,0,
0x80:0,0,0,0,
_cpsw_get_cpdma ofs0x800:
0x0:180109,0,0,0,180109,0,0,0,
0x20:0,80000000,0,0,0,0,0,0,
0x40:0,0,0,0,
0x80:0,0,0,0,0,0,0,0,
0xa0:0,0,0,0,0,0,0,0,
0xc0:0,0,0,0,0,0,0,0,
0xe0:0,0,0,0,0,0,0,0,
Trying cpsw
cpsw_init b0:d5:cc:73:cd:6c;
wrt4a10000c=7,rd=7,rd2=7;
slave_port=2;
link up on port 1, speed 100, full duplex
Using cpsw device
send 42;
recv 64;
send 42;
recv 64;
cpsw_halt;
_cpsw_get_ss base0x4a100000,ofs0x0:
0x0:19010f,0,0,7,
_cpsw_get_stats ofs0x900:
0x0:2,0,0,0,0,0,0,0,
0x20:0,0,0,0,80,2,1,0,
0x40:0,0,0,0,0,0,0,0,
0x60:0,80,4,0,0,0,0,0,
0x80:100,0,0,0,
_cpsw_get_cpdma ofs0x800:
0x0:180109,1,0,0,180109,1,0,0,
0x20:0,80000000,0,0,0,0,0,0,
0x40:0,0,0,0,
0x80:1,0,0,0,0,0,0,0,
0xa0:0,0,0,0,0,0,0,0,
0xc0:0,0,0,0,0,0,0,0,
0xe0:40,0,0,0,0,0,0,0,
host 192.168.1.11 is alive

0 Schuyler Patton over 6 years ago in reply to mrxiao2017

TI__Mastermind 41170 points

Hi,

That is good to hear. I will mark the thread as closed. Please click this resolved my issue on the response email. Thank you.

Best Regards,

Schuyler

Processors

Processors forum

AM4377: RMII Ethernet not available in U-boot