mmc/sd driver testing.

Wed Apr 22 21:32:21 UTC 2015

Hey Luiz,

I just tried your patches with a a fresh -HEAD.

The mmc driver seems to register just fine and is able to detect the partitions on my sd card. 

However my Cubieboard doesn’t seem to get to the login prompt, it gets stuck after the “warning: no time-of-day clock registered…”

After this happened I waited a while just to make sure it wasn’t slow read speeds, CPU die gets really warm. 

Also the system didn’t freeze, when I plug in a USB stick it still outputs messages to the console.

Any ideas about what could be going on?

My boot log:

U-Boot 2015.01-5 (Mar 21 2015 - 11:29:51) Arch Linux ARM

CPU:   Allwinner A10 (SUN4I)
I2C:   ready
DRAM:  1016 MiB
MMC:   SUNXI SD/MMC: 0
*** Warning - bad CRC, using default environment

Reserved 8192kB of RAM for Framebuffer.
In:    serial
Out:   serial
Err:   serial
SCSI:  SUNXI SCSI INIT
SATA link 0 timeout.
AHCI 0001.0100 32 slots 1 ports 3 Gbps 0x1 impl SATA mode
flags: ncq stag pm led clo only pmp pio slum part ccc apst 
Net:   emac
(Re)start USB...
USB0:   USB EHCI 1.00
scanning bus 0 for devices... 1 USB Device(s) found
USB1:   USB EHCI 1.00
scanning bus 1 for devices... 1 USB Device(s) found
       scanning usb for storage devices... 0 Storage Device(s) found
Hit any key to stop autoboot:  0 
sun4i# fatload mmc 0 0x40200000 kernel; go 0x40200100
reading kernel
5935420 bytes read in 397 ms (14.3 MiB/s)
## Starting application at 0x40200100 ...
KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2015 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 11.0-CURRENT #3 r281867M: Wed Apr 22 22:33:21 CEST 2015
    root at freebsd.my.domain:/usr/obj/arm.arm/usr/src/sys/CUBIEBOARD arm
FreeBSD clang version 3.6.0 (tags/RELEASE_360/final 230434) 20150225
WARNING: WITNESS option enabled, expect reduced performance.
CPU: Cortex A8-r3 rev 2 (Cortex-A core)
 Supported features: ARM_ISA THUMB2 JAZELLE THUMBEE ARMv4 Security_Ext
 WB disabled EABT branch prediction enabled
LoUU:2 LoC:3 LoUIS:1 
Cache level 1: 
 32KB/64B 4-way data cache WT WB Read-Alloc
 32KB/64B 4-way instruction cache Read-Alloc
Cache level 2: 
 256KB/64B 8-way unified cache WT WB Read-Alloc Write-Alloc
real memory  = 1073741824 (1024 MB)
avail memory = 1039183872 (991 MB)
random: entropy device infrastructure driver
random: selecting highest priority adaptor <Dummy>
random: SOFT: yarrow init()
random: selecting highest priority adaptor <Yarrow>
ofwbus0: <Open Firmware Device Tree>
simplebus0: <Flattened device tree simple bus> on ofwbus0
aintc0: <A10 AINTC Interrupt Controller> mem 0x1c20400-0x1c207ff on simplebus0
a10_sramc0: <Allwinner sramc module> mem 0x1c00000-0x1c00fff on simplebus0
a10_ccm0: <Allwinner Clock Control Module> mem 0x1c20000-0x1c203ff on simplebus0
a10_timer0: <Allwinner A10/A20 timer> mem 0x1c20c00-0x1c20c8f irq 22 on simplebus0
Event timer "a10_timer Eventtimer" frequency 24000000 Hz quality 1000
Timecounter "a10_timer timer0" frequency 24000000 Hz quality 1000
a10wd0: <Allwinner A10 Watchdog> mem 0x1c20c90-0x1c20c97 on simplebus0
gpio0: <Allwinner GPIO controller> mem 0x1c20800-0x1c20bff irq 28 on simplebus0
gpiobus0: <GPIO bus> on gpio0
gpioc0: <GPIO controller> on gpio0
ehci0: <Allwinner Integrated USB 2.0 controller> mem 0x1c14000-0x1c14fff irq 39 on simplebus0
usbus0: EHCI version 1.0
usbus0 on ehci0
ehci1: <Allwinner Integrated USB 2.0 controller> mem 0x1c1c000-0x1c1cfff irq 40 on simplebus0
usbus1: EHCI version 1.0
usbus1 on ehci1
a10_mmc0: <Allwinner Integrated MMC/SD controller> mem 0x1c0f000-0x1c0ffff irq 32 on simplebus0
mmc0: <MMC/SD bus> on a10_mmc0
uart0: <16750 or compatible> mem 0x1c28000-0x1c283ff irq 1 on simplebus0
uart0: console (115200,n,8,1)
emac0: <A10/A20 EMAC ethernet controller> mem 0x1c0b000-0x1c0bfff irq 55 on simplebus0
miibus0: <MII bus> on emac0
rlphy0: <RTL8201L 10/100 media interface> PHY 1 on miibus0
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
emac0: Ethernet address: 62:73:64:11:83:9e
Timecounters tick every 10.000 msec
usbus0: 480Mbps High Speed USB v2.0
usbus1: 480Mbps High Speed USB v2.0
uugen0.1: <Allwinner> at usbus0
uhub0: <Allwinner EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus0
gen1.1: <Allwinner> at usbus1
uhub1: <Allwinner EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus1
mmcsd0: 8GB <SDHC SL08G 8.0 SN 22F1DB6C MFG 11/2013 by 3 SD> at mmc0 50.0MHz/4bit/65535-block
random: unblocking device.
WARNING: WITNESS option enabled, expect reduced performance.
Root mount waiting for: usbus1 usbus0
uhub1: 1 port with 1 removable, self powered
uhub0: 1 port with 1 removable, self powered
Trying to mount root from ufs:/dev/mmcsd0s2a []...
warning: no time-of-day clock registered, system time will not be set accurately