AP3715i Openwrt Support

I have been trying to use the openwrt-mpc85xx-p1020-extreme-networks_ws-ap3825i-initramfs-kernel.bin guide and setup steps on this unit which results in a kernel panic on bootm go

Any advise as to what I am doing wrong?

Full set of commands to set this up is:

setenv boot_openwrt "cp.b 0xEC000000 0x2000000 0x2000000; interrupts off; bootm start 0x2000000; bootm loados; fdt resize; fdt boardsetup; fdt resize; fdt boardsetup; fdt chosen; fdt resize; fdt chosen; bootm prep; bootm go;"
setenv bootcmd "run boot_openwrt"
setenv bootargs 'board=AP3710i'
setenv ipaddr 192.168.12.251;
setenv serverip 192.168.12.171;
saveenv



tftpboot 0x2000000 openwrt-mpc85xx-p1020-enterasys_ws-ap3710i-initramfs-kernel.bin;
interrupts off;
bootm start 0x2000000;
bootm loados;
fdt resize;
fdt boardsetup;
fdt resize;
fdt boardsetup;
fdt chosen;
fdt resize;
fdt chosen;
bootm prep;
bootm go;
[    5.535502] physmap-flash ee000000.nor: physmap platform flash device: [mem 0xee000000-0xefffffff]
[    5.544555] Disabling lock debugging due to kernel taint
[    5.549863] Machine check in kernel mode.
[    5.553864] Caused by (from MCSR=10008): Bus - Read Data Bus Error
[    5.560045] Oops: Machine check, sig: 7 [#1]
[    5.564308] BE PAGE_SIZE=4K SMP NR_CPUS=2 P1020 RDB
[    5.569177] Modules linked in:
[    5.572232] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G   M              5.10.138 #0
[    5.579706] NIP:  c0462f84 LR: c0457e54 CTR: c0462f50
[    5.584751] REGS: cffebf08 TRAP: 0204   Tainted: G   M               (5.10.138)
[    5.592050] MSR:  00029000 <CE,EE,ME>  CR: 28000442  XER: 00000000
[    5.598243] DEAR: d1200000 ESR: 00800000
[    5.598243] GPR00: c045829c c1041bb8 c1038000 c1041be0 c1f6a0d0 00000020 c1041c78 00000004
[    5.598243] GPR08: 00000002 00000002 d1200000 00000000 48000444 00000000 c00032c8 00000000
[    5.598243] GPR16: 00000000 00000000 00000000 00000000 c1137770 00000001 fffff000 c07f747c
[    5.598243] GPR24: c07f79d8 00000000 00000000 00000000 00000000 00000002 00000022 c1f6a0d0
[    5.635717] NIP [c0462f84] simple_map_read+0x34/0x58
[    5.640676] LR [c0457e54] cfi_qry_present+0x90/0x120

I managed to recover the unit to obtain some additional information below:

# mount
rootfs on / type rootfs (rw)
/proc on /proc type proc (rw,relatime)
/sysfs on /sys type sysfs (rw,relatime)
devpts on /dev/pts type devpts (rw,relatime,mode=622)
none on /tmp type ramfs (rw,relatime,mode=0777)
/dev/mtdblock4 on /flash type jffs2 (rw,relatime)


# cat /proc/mtd
dev:    size   erasesize  name
mtd0: 000a0000 00010000 "BootBAK"
mtd1: 00080000 00010000 "BootPRI"
mtd2: 00010000 00010000 "CFG1"
mtd3: 00010000 00010000 "CFG2"
mtd4: 01d80000 00010000 "FS"
mtd5: 00010000 00010000 "NVRAM1"
mtd6: 00010000 00010000 "NVRAM2"
mtd7: 00010000 00010000 "NVRAM3"
mtd8: 00010000 00010000 "NVRAM4"
mtd9: 00010000 00010000 "NVRAM5"
mtd10: 00010000 00010000 "NVRAM6"
mtd11: 00010000 00010000 "NVRAM7"
mtd12: 00010000 00010000 "NVRAM8"
mtd13: 00010000 00010000 "NVRAM9"
mtd14: 00010000 00010000 "NVRAM10"
mtd15: 00010000 00010000 "NVRAM11"
mtd16: 00010000 00010000 "NVRAM12"
mtd17: 00010000 00010000 "NVRAM13"
mtd18: 00010000 00010000 "NVRAM14"
mtd19: 00010000 00010000 "NVRAM15"
mtd20: 00010000 00010000 "NVRAM16"

The Enterasys WS-AP3710i is not the same device as the Extreme Networks WS-AP3825i. Please boot from this file instead: https://downloads.openwrt.org/snapshots/targets/mpc85xx/p1020/openwrt-mpc85xx-p1020-extreme-networks_ws-ap3825i-initramfs-kernel.bin