Date: Sat, 1 Apr 2017 01:42:16 +0200 From: Rasmus Liland <jensrasmus@gmail.com> To: Jan Sieka <jan.sieka@gmail.com>, freebsd-arm <freebsd-arm@freebsd.org> Subject: Re: DB-88F6XXX kernel on 88F6281_A0 (GoFlex Net) Message-ID: <20170331234216.GA16657@jrl.uk.to> In-Reply-To: <20170331111538.GB31398@jrl.uk.to> References: <20170330232907.GA21389@jrl.uk.to> <888745.43951.qm@web101706.mail.ssk.yahoo.co.jp> <20170331094127.GA29618@jrl.uk.to> <CAGeh=dV5ZM_rS7eYE3vSc=86rG=6=RpPqA_YSg1%2By8fLG_g02Q@mail.gmail.com> <20170331111538.GB31398@jrl.uk.to>
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On 2017-03-31 13:15 +0200, Rasmus Liland wrote: > On 2017-03-31 12:45 +0200, Jan Sieka wrote: > > How much memory (RAM) do you have on your board? > > > > I'm recalling that sometimes when we tried to load FreeBSD > > kernel under the wrong address we were overwriting the U-Boot > > in the RAM thus we observed stalled tftp load. So the > > question is what is the address under which the U-Boot is > > copied to the memory on your board. > > U-Boot announces the amount of DRAM to 128MiB, and 256MiB of > NAND. Is there any U-boot command I can run to show some of the > memory mapping to determine the new addresses? Unable to calculate the addresses myself, I found in U-boot already stated address variables of Linux kernel /boot/uImage and ramdisk /uInitrd to be respecively addr_kern=0x680000, and addr_rd=0x1100000, which is an offset of 5568KiB. As stated earlier, it is possible to load kernel.bin from address 0x600000, perhaps 0x680000 is just enough. Will try this, reporting back in some hours. /Rasmus
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