root on SD

[David Sharp]

should using an SD card for root work, or is this still
work in progress?  my board hangs after the at the 
'Trying to mount root' message.

david.



Found SD card 252968960 bytes
\
Default: /kernel.gz.tramp
boot: 
cmd is ''
KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2006 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 7.0-CURRENT #4: Tue Oct 31 23:48:21 UTC 2006
    root at hush.wa.sharp.org:/usr/src/sys/arm/compile/DRCPS0
CPU: ARM920T rev 0 (ARM9TDMI core)
  DC enabled IC enabled WB enabled LABT
  16KB/32B 64-way Instruction cache
  16KB/32B 64-way write-back-locking-A Data cache
real memory  = 67108864 (64 MB)
avail memory = 62189568 (59 MB)
atmelarm0: <AT91RM9200 device bus> on motherboard
at91_st0: <ST> mem 0xdffffd00-0xdffffdff irq 1 on atmelarm0
at91_st0: watchdog registered, timeout intervall max. 64 sec
at91_pio0: <PIOA> mem 0xdffff400-0xdffff5ff irq 1 on atmelarm0
at91_pio0: ABSR: 0x60 OSR: 0 PSR:0x738001f ODSR: 0
at91_pio0: [FAST]
at91_pio1: <PIOB> mem 0xdffff600-0xdffff7ff irq 1 on atmelarm0
at91_pio1: ABSR: 0xff338 OSR: 0 PSR:0x3fc00cc7 ODSR: 0
at91_pio1: [FAST]
at91_pio2: <PIOC> mem 0xdffff800-0xdffff9ff irq 1 on atmelarm0
at91_pio2: ABSR: 0 OSR: 0 PSR:0xc07f ODSR: 0
at91_pio2: [FAST]
at91_pio3: <PIOD> mem 0xdffffa00-0xdffffbff irq 1 on atmelarm0
at91_pio3: ABSR: 0 OSR: 0 PSR:0xfffffff ODSR: 0
at91_pio3: [FAST]
at91_pmc0: <PMC> mem 0xdffffc00-0xdffffcff irq 1 on atmelarm0
at91_pmc0: Primary: 10000000 Hz PLLA: 180 MHz CPU: 180 MHz MCK: 60 MHz
at91_rtc0: <RTC> mem 0xdffffe00-0xdffffeff irq 1 on atmelarm0
at91_rtc0: [FAST]
at91_mci0: <MCI mmc/sd host bridge> mem 0xdffb4000-0xdffb7fff irq 10 on atmelarm0
mmc0: <mmc/sd bus> on at91_mci0
ate0: <EMAC> mem 0xdffbc000-0xdffbffff irq 24 on atmelarm0
ate0: Cannot find my PHY.
device_attach: ate0 attach returned 6
uart0: <DBGU> mem 0xdffff200-0xdffff3ff irq 1 on atmelarm0
uart0: [FAST]uart0: console (115200,n,8,1)
uart1: <USART0> mem 0xdffc0000-0xdffc3fff irq 6 on atmelarm0
uart1: [FAST]
uart2: <USART1> mem 0xdffc4000-0xdffc7fff irq 7 on atmelarm0
uart2: [FAST]
uart3: <USART2> mem 0xdffc8000-0xdffcbfff irq 8 on atmelarm0
uart3: [FAST]
uart4: <USART3> mem 0xdffcc000-0xdffcffff irq 9 on atmelarm0
uart4: [FAST]
at91_ssc0: <SSC> mem 0xdffd0000-0xdffd3fff irq 14 on atmelarm0
at91_ssc1: <SSC> mem 0xdffd4000-0xdffd7fff irq 15 on atmelarm0
at91_ssc2: <SSC> mem 0xdffd8000-0xdffdbfff irq 16 on atmelarm0
at91_spi0: <SPI> mem 0xdffe0000-0xdffe3fff irq 13 on atmelarm0
spibus0: <spibus bus> on at91_spi0
Cannot get 100 Hz clock; using 128Hz
at91_st0: [FAST]
Timecounter "AT91RM9200 timer" frequency 32768 Hz quality 1000
Timecounters tick every 7.812 msec
at91_mci0: Setting controller bus width to 1
at91_mci0: Setting controller bus width to 1
at91_mci0: Setting controller bus width to 1
at91_mci0: Setting controller bus width to 1
at91_mci0: Setting controller bus width to 1
at91_mci0: Setting controller bus width to 1
SD CARD: 252968960 bytes
at91_mci0: Setting controller bus width to 1
mmcsd0: <mmc or sd flash card> on mmc0
mmc0: setting transfer rate to 30.000MHz
at91_mci0: Setting controller bus width to 1
Trying to mount root from ufs:mmcsd0s1a