On 6/26/19 2:51 PM, Suniel Mahesh wrote: > 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.
Yes, non-DM in SPL is OK. -- Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
