On Monday 16 June 2014 05:10 AM, Peter Howard wrote: > I'm finding that, while the SD driver initialises and the card is > detected, that's where things stop. > > The (cut down) boot log is as follows: > > brd: module loaded > > davinci_mdio davinci_mdio.0: davinci mdio revision 1.5 > > davinci_mdio davinci_mdio.0: detected phy mask fffffffe > > libphy: davinci_mdio.0: probed > > davinci_mdio davinci_mdio.0: phy[0]: device davinci_mdio-0:00, driver unknown > > input: gpio-keys-polled as /devices/platform/gpio-keys-polled.1/input/input0 > > i2c /dev entries driver > > davinci_mmc da830-mmc.0: Using DMA, 4-bit mode > > TCP: cubic registered > > NET: Registered protocol family 17 > > LDO2: incomplete constraints, leaving on > > LDO1: incomplete constraints, leaving on > > VDCDC3: incomplete constraints, leaving on > > VDCDC2: incomplete constraints, leaving on > > VDCDC1: incomplete constraints, leaving on > > console [netcon0] enabled > > netconsole: network logging started > > davinci_emac davinci_emac.1: using random MAC addr: 66:e9:e3:43:07:13 > > mmc0: new high speed SDHC card at address 0007 > > drivers/rtc/hctosys.c: unable to open rtc device (rtc0) > > net eth0: Request IRQ 33 > > net eth0: Request IRQ 34 > > net eth0: Request IRQ 35 > > net eth0: Request IRQ 36 > > davinci_mdio davinci_mdio.0: resetting idled controller > > net eth0: attached PHY driver [Generic PHY] > (mii_bus:phy_addr=davinci_mdio-0:00) > davinci_emac davinci_emac.1 eth0: Link is Up - 100Mbps/Full - flow control > rx/tx > Sending DHCP requests ., OK > > IP-Config: Got DHCP answer from 192.168.1.17, my address is 192.168.0.150 > > IP-Config: Complete: > > device=eth0, hwaddr=66:e9:e3:43:07:13, ipaddr=192.168.0.150, > mask=255.255.4 > host=192.168.0.150, domain=gme.net.au, nis-domain=(none) > > bootserver=0.0.0.0, rootserver=0.0.0.0, rootpath= > > nameserver0=192.168.1.14, nameserver1=192.168.1.17 > > Waiting for root device /dev/mmcblk0p2... > > random: nonblocking pool is initialized > > > I haven't done any further debugging yet to see what happens (or doesn't > happen) after > > mmc0: new high speed SDHC card at address 0007 > > > > The build sequence was: > * tar xf linux-3.15.tar.xz > * cd linux-3.15 > * cp arch/arm/configs/davinci_all_defconfig .config > * make ARCH=arm CROSS_COMPILE=arm-arago-linux-gnueabi- menuconfig > (only change was to make MMC/SD support and the relevant driver > built-in instead of in a module) > * make ARCH=arm LOADADDR=0xc0008000 > CROSS_COMPILE=arm-arago-linux-gnueabi- uImage -j9 > > The image was then copied to the SD card and then booted. I'm assuming > that it *should* work. The same process on the master branch of the > repo at git.kernel.org produces the same behavior.
Can you make sure CONFIG_MMC_BLOCK=y in .config? If that does not help, can you check the output of /proc/interrupts. Do you see EDMA interrupts incrementing? Also, just to rule out other issues, can you build with CONFIG_TI_EDMA=n? This will force the driver into PIO mode. Switching on CONFIG_MMC_DEBUG might also help throw more light on what the issue is. Thanks, Sekhar _______________________________________________ Davinci-linux-open-source mailing list Davinci-linux-open-source@linux.davincidsp.com http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
