port-arm/52646: On BeagleBoardxm - Kernel panics on boot

[venture37%geeklan.co.uk@localhost]

>Number:         52646
>Category:       port-arm
>Synopsis:       On BeagleBoardxm - Kernel panics on boot
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-arm-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Oct 23 23:35:00 +0000 2017
>Originator:     Sevan Janiyan
>Release:        HEAD
>Organization:
>Environment:
>Description:
Attempting to boot NetBSD/evbarm on a beagleboardxm results in a panic during boot.
wsdisplay0 at omapfb0 kbdmux 1
omapwdt32k0 at obio1 addr 0x48314000-0x483147ff: rev 3.1
prcm0 at obio1 addr 0x48306000-0x48307fff: Power, Reset and Clock Management
com0 at obio2 addr 0x49020000-0x490203ff intr 74: OMAP UART, working fifo
com0: console
omapmputmr0 at obio2 addr 0x49032000-0x490320ff intr 38: OMAP MPU Timer #2
omapmputmr1 at obio2 addr 0x49034000-0x490340ff intr 39: OMAP MPU Timer #3
omapmputmr2 at obio2 addr 0x49036000-0x490360ff intr 40: OMAP MPU Timer #4
clock: hz=100 stathz=64
data_abort_handler: data_aborts fsr=0x1808 far=0xe103401c
Fatal kernel mode data abort: 'External Non-Linefetch Abort (S)'
trapframe: 0x80b51e60
FSR=00001808, FAR=e103401c, spsr=20000153
r0 =00000000, r1 =e1034000, r2 =0000001c, r3 =00000000
r4 =80865c5c, r5 =80b22eb8, r6 =807aae88, r7 =00000000
r8 =8030eb3c, r9 =9df10ed0, r10=87ffc01b, r11=80b51edc
r12=80b51e80, ssp=80b51eb0, slr=8030607c, pc =8030eb3c

Stopped in pid 0.1 (system) at  netbsd:generic_bs_w_4:  str     r3, [r1, r2]
db> bt
0x80b51edc: netbsd:cpu_initclocks+0xc
0x80b51f44: netbsd:initclocks+0x48
0x80b51f9c: netbsd:main+0x250
0x80b51fac: netbsd:kernel_text+0x50
db> ps
PID    LID S CPU     FLAGS       STRUCT LWP *               NAME WAIT
0       20 2   0       200           9fe96860               iic2
0       19 2   0       200           9fe96b20               iic1
0       18 2   0       200           9fe96de0               iic0
0       17 2   0       200           9fe970a0         usbtask-dr
0       16 2   0       200           9fe97360         usbtask-hc
0       15 2   0       200           9fe97620             sysmon
0       14 2   0       200           9fe978e0         pmfsuspend
0       13 2   0       200           9fe97ba0           pmfevent
0       12 2   0       200           9ff28000         sopendfree
0       11 2   0       200           9ff282c0           nfssilly
0       10 2   0       200           9ff28580            cachegc
0        9 2   0       200           9ff28840             vdrain
0        8 2   0       200           9ff28b00          modunload
0        7 2   0       200           9ff28dc0            xcall/0
0        6 1   0       200           9ff29080          softser/0
0        5 1   0       200           9ff29340          softclk/0
0        4 1   0       200           9ff29600          softbio/0
0        3 1   0       200           9ff298c0          softnet/0
0        2 1   0       201           9ff29b80             idle/0
0    >   1 7   0       200           807ae2c0            swapper

I started off initially with u-boot 2017.09 from pkgsrc but also tested the Ti supplied image from 2017.01
>How-To-Repeat:
Boot latest armv7hf-el nightly build on a beagleboardxm
>Fix: