[U-Boot] [PATCH 00/35][RFC] arm: socfpga: Usability fixes

[Marek Vasut]

On Tuesday, September 16, 2014 at 06:28:52 PM, Dinh Nguyen wrote:
> On 09/16/2014 08:18 AM, Pavel Machek wrote:
> > Hi!
> > 
> > On Mon 2014-09-15 13:05:53, Marek Vasut wrote:
> >> This entire RFC series is the first stab at making SoCFPGA usable with
> >> mainline U-Boot again. There are still some bits missing, but in
> >> general, this allows me to use mainline U-Boot on my SoCFPGA systems.
> >> The big missing part is the SPL generation, which still needs a lot of
> >> additional work.
> >> 
> >> This set contains patches for a few subsystems, bu the most part is the
> >> SoCFPGA chip support.
> >> 
> >> Most of the patches should be in good shape already, so I wonder if the
> >> RFC tag is really necessary.
> > 
> > Just... I earlier today I tested Marek's git tree based on this
> > series, and it works well for me on board similar to sockit.
> > 
> > So
> > 
> > Tested-by: Pavel Machek <pavel at denx.de>
> > 
> > Thanks and best regards,
> > 
> > 									Pavel
> 
> I applied all the patches to v2014.10-rc2, and I see that the watchdog
> has been enabled and it's getting reset:
> 
> U-Boot 2014.10-rc2-00139-g70e9e3e (Sep 16 2014 - 11:21:38)
> 
> CPU:   Altera SoCFPGA Platform
> BOARD: Altera SoCFPGA Cyclone5 Board
>        Watchdog enabled
> DRAM:
> U-Boot SPL 2013.01.01-00019-g9cce15f (Jul 18 2013 - 13:05:43)
> SDRAM : Initializing MMR registers
> SDRAM : Calibrating PHY
> SEQ.C: Preparing to start memory calibration
> SEQ.C: CALIBRATION PASSED
> ALTERA DWMMC: 0
> reading u-boot.img
> reading u-boot.img
> 
> 
> U-Boot 2014.10-rc2-00139-g70e9e3e (Sep 16 2014 - 11:21:38)
> 
> CPU:   Altera SoCFPGA Platform
> BOARD: Altera SoCFPGA Cyclone5 Board
>        Watchdog enabled
> DRAM:

This doesn't seem like a WDT problem. How much DRAM is there on that kit ? In 
any case, try this:

1) Edit arch/arm/cpu/armv7/socfpga/misc.c
2) Locate call to get_ram_size()
3) Replace this function call with the size of your DRAM in bytes.
   (that is, make it "gd->ram_size = 128 * 1024 * 1024;" if you have 128MiB)

I suspect get_ram_size() on socfpga is still broken in mainline and causes this 
crash you observe.

btw you don't happen to have a spare CV and AV kits you could send me, so I can 
do the testing rounds on them too, do you ?

Best regards,
Marek Vasut