On Wed, Sep 11, 2019 at 11:44 AM Moses Christopher <moseschristoph...@gmail.com> wrote: > > > > On Wed, 11 Sep, 2019, 10:32 AM Simon Goldschmidt, > <simon.k.r.goldschm...@gmail.com> wrote: >> >> On Mon, Sep 9, 2019 at 11:29 AM Moses Christopher >> <moseschristoph...@gmail.com> wrote: >> > >> > Hi Simon, >> > >> > >> > Thanks for the prompt reply. >> > >> > On Fri, 6 Sep, 2019, 8:13 AM Simon Goldschmidt, >> > <simon.k.r.goldschm...@gmail.com> wrote: >> > >> > Hi, >> > >> > On Thu, Sep 5, 2019 at 4:14 PM Moses Christopher >> > <moseschristoph...@gmail.com> wrote: >> > > Hello together, >> > > >> > > I was trying to build u-boot and spl for the arm target and tried to >> > > boot via usb-ethernet. >> > > I found an issue with one of the commit made in the early 2019, >> > > http://patchwork.ozlabs.org/patch/1024795/ >> > > >> > > When using this CONFIG_LMB the max_size or the lmb_get_free_size(&lmb, >> > > load_addr); returns 0, no matter what. >> > > And it triggers the following error, >> > > TFTP error: trying to overwrite reserved memory... >> > > I did a quick fix by adding #undef CONFIG_LMB in the file, net/tftp.c >> > > So, I would like to know why this doesn’t work as it was working before >> > > applying this patch ? >> > >> > Can you add "#define DEBUG" as the first line in 'lib/lmb.c'? That >> > should give you debug >> > output when lmb is used. >> > >> > >> > I did add DEBUG macro to lmb.c but the function having the debug messages >> > isn't getting called. I suppose it was from fs/fs.c >> >> Right, tftp.c is missing the call to that funcftion. Could you add the >> call to 'lmb_dump_all(&lmb);' >> right below 'lmb_init_and_reserve()' in tftp.c? >> >> That should give you the output required. And while at it, tell us >> what 'load_addr' is set to >> (by adding a printf in tftp.c, too). >> >> Thanks, >> Simon > > > Thanks for your patience and time. > > Please find the log below, > > > > DHCP client bound to address 172.17.0.2 (1285 ms) > > Using usb_ether device > > TFTP from server 172.17.0.1; our IP address is 172.17.0.2 > > Filename 'u-boot.img'. > > lmb_dump_all: > > memory.cnt = 0x0 > > memory.size = 0xx > > > > reserved.cnt = 0x0 > > reserved.size = 0xx > > load_addr: 0x82000000 > > > > TFTP error: trying to overwrite reserved memory... > > Problem booting with BOOTP > > > > In my u-boot it shows the DRAM size properly as 256MiB > > So, do I need to configure my RAM size in SPL stage as well, such that SPL is > aware of the memory size ?
Ehrm, are you doing this from SPL? You need the RAM size for 'lmb_init_and_reserve()' to read, yes. Otherwise it can't know where to safely allocate things. Regards, Simon > > >> >> > >> > FYI, >> > I'm trying to load SPL and uboot on RAM, using USB-ETH. Also the >> > environment is not stored separately, neither the device tree. >> > >> > >> > The lmb code works by getting the RAM size, adding reserved areas and then >> > only >> > allowing allocations in non-reserved areay. However, the RAM size is >> > not fully used >> > depending on some config options and/or environment variables. There's >> > possibly >> > something wrong in your configuration around that. >> > >> > >> > Because, earlier to this patch, net/tftp.c isn't actually checking for the >> > reserved memory regions and is able to download the files properly on the >> > RAM and it works. I know, that's not a good approach, hence you've made >> > the necessary changes to correct it. >> > >> > Could you kindly provide me some information, where I can read more about >> > the reserved memory regions and how exactly some region is treated as >> > reserved region ? >> > >> > Also, it'd be great if you could provide some information related to the >> > configuration of Reserved and free addresses of RAM. >> > >> > Thank you for your patience and time. >> > >> > Regards, >> > Simon >> > >> > > >> > > Best regards, >> > > Moses Christopher >> > >> > Best regards, >> > Moses Christopher _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
