arch/arm/stm32h5: Use MDIO bus

[darrylring]

Summary

Copy the MDIO bus changes from the STM32H7 port. This uses the same MDIO lower half driver as the STM32H7 and replaces the existing Ethernet PHY register read/write functionality.

Impact

There should be no user impact.

Testing

Built this configuration for the Nucleo H563ZI board: nucleo-h563zi-netnsh.patch

Ethernet comes up as expected, PHY communication works, receives IP via DHCP, etc.

ABCG
telnetd [5:100]

NuttShell (NSH) NuttX-13.0.1-RC1
nsh> ifconfig
eth0    Link encap:Ethernet HWaddr a2:60:64:cb:97:19 at RUNNING mtu 576
        inet addr:192.168.2.10 DRaddr:192.168.2.30 Mask:255.255.255.0
...
nsh> ping 192.168.2.30
PING 192.168.2.30 56 bytes of data
56 bytes from 192.168.2.30: icmp_seq=0 time=0.0 ms
56 bytes from 192.168.2.30: icmp_seq=1 time=0.0 ms
56 bytes from 192.168.2.30: icmp_seq=2 time=0.0 ms
56 bytes from 192.168.2.30: icmp_seq=3 time=0.0 ms
56 bytes from 192.168.2.30: icmp_seq=4 time=0.0 ms
56 bytes from 192.168.2.30: icmp_seq=5 time=0.0 ms
56 bytes from 192.168.2.30: icmp_seq=6 time=0.0 ms
56 bytes from 192.168.2.30: icmp_seq=7 time=0.0 ms
56 bytes from 192.168.2.30: icmp_seq=8 time=0.0 ms
56 bytes from 192.168.2.30: icmp_seq=9 time=0.0 ms
10 packets transmitted, 10 received, 0% packet loss, time 10110 ms
rtt min/avg/max/mdev = 0.000/0.000/0.000/0.000 ms
...
nsh> mdio 0
phy[0][0] = 0x1100
phy[0][1] = 0x782d
phy[0][2] = 0x   7
phy[0][3] = 0xc131
phy[0][4] = 0x 1e1
phy[0][5] = 0xcde1
phy[0][6] = 0x  6f
phy[0][7] = 0x2001
phy[0][8] = 0x4000
phy[0][9] = 0xffff
phy[0][10] = 0xffff
phy[0][11] = 0xffff
phy[0][12] = 0xffff
phy[0][13] = 0x   0
phy[0][14] = 0x   0
phy[0][15] = 0x   0
phy[0][16] = 0x  41
phy[0][17] = 0x   2
phy[0][18] = 0x60e0
phy[0][19] = 0xffff
phy[0][20] = 0x   0
phy[0][21] = 0x   0
phy[0][22] = 0x   0
phy[0][23] = 0x   0
phy[0][24] = 0x9b9d
phy[0][25] = 0x   0
phy[0][26] = 0x   0
phy[0][27] = 0x   a
phy[0][28] = 0x4000
phy[0][29] = 0x  c8
phy[0][30] = 0x   0
phy[0][31] = 0x1058

[github-actions]

MemBrowse Memory Report

arduino-mega2560

• flash: .text +16 B (+0.0%, 65,128 B / 262,144 B, total: 25% used)

esp32-devkitc

• ROM: .flash.text +12 B (+0.0%, 124,904 B / 4,194,272 B, total: 3% used)
• irom0_0_seg: .flash.text +12 B (+0.0%, 89,108 B / 3,342,304 B, total: 3% used)

hifive1-revb

• flash: .text -8 B (-0.0%, 83,724 B / 4,194,304 B, total: 2% used)

mirtoo

• kseg0_progmem: .text +20 B (+0.0%, 67,772 B / 131,072 B, total: 52% used)

qemu-armv8a

• Code: .text.nx_pthread_create -4 B, .text.nxsched_set_param +16 B, .text.spawn_execattrs +4 B, .text.work_qcancel +20 B (+0.0%, 336,944 B)

qemu-intel64

• Code: .text +15 B (+0.0%, 8,659,813 B)

rx65n-rsk2mb

• ROM: .text +16 B (+0.0%, 86,896 B / 2,097,152 B, total: 4% used)

s698pm-dkit

• Code: .text +64 B (+0.0%, 367,552 B)

stm32-nucleo-f103rb

• flash: .text +8 B (+0.0%, 34,556 B / 131,072 B, total: 26% used)