On 26/06/19 16:49, Marek Vasut wrote: > On 6/26/19 12:54 PM, Jagan Teki wrote: >> On Wed, Jun 26, 2019 at 4:07 PM Stefan Roese <s...@denx.de> wrote: >>> >>> On 26.06.19 11:53, Suniel Mahesh wrote: >>>> Hi, >>>> >>>> I am trying to convert watchdog driver(omap3_wdt) on TI AM33XX platform to >>>> Driver Model. >>>> Since DM is also enabled in SPL, size of SPL image generated(with watchdog >>>> DM enabled) is >>>> bigger compared to the SRAM size(.u_boot_list section doesn't fit in the >>>> region alloted) >>>> and build is failing with the following error: >>>> >>>> LD spl/drivers/usb/gadget/built-in.o >>>> LD spl/drivers/usb/musb-new/built-in.o >>>> LD spl/drivers/built-in.o >>>> LD spl/u-boot-spl >>>> arm-linux-ld.bfd: u-boot-spl section `.u_boot_list' will not fit in region >>>> `.sram' >>>> arm-linux-ld.bfd: region `.sram' overflowed by 48 bytes >>>> make[1]: *** [spl/u-boot-spl] Error 1 >>>> make: *** [spl/u-boot-spl] Error 2 >>>> >>>> The SRAM size in the device is 130047 bytes, of which 110592 bytes are >>>> allocated for SPL >>>> Image, 6144 bytes for stack and the rest 12799 bytes for RAM Exec vectors, >>>> tracing data >>>> and static variables. >>>> >>>> Maximum SPL image size is fixed at 110592 bytes >>>> >>>> SPL size without Watchdog driver model is 110880 bytes. >>>> >>>> So, the reason for such error is straight forward. >>>> >>>> I can think of two possible approaches (might be wrong): >>>> >>>> 1. either disable DM in SPL for watchdog ? >>>> (dm: mmc: Allow disabling driver model in SPL - by Simon Glass) >>>> >>>> 2. The stack allocated for SPL in SRAM is 6KB and 12799 bytes for RAM >>>> Exec vectors, >>>> tracing data and static variables. can we do something here, by borrowing >>>> some bytes ? >>>> >>>> Or any possible solutions ? >>> >>> You could also disable the watchdog in SPL and only enable it >>> later in U-Boot proper. >> >> May be his requirement is to reset the watchdog if SPL hang or something. > > Non-DM WDT support can do that just fine. > My question was that can we do a Non-DM WDT in SPL, which was my first item above.
I will try for a Non-DM WDT in SPL. Thanks Jagan, Stefan, Marek for the quick reply and suggestions. Regards Suniel Mahesh _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
