[U-Boot] [PATCH] image-fdt: reserve lmb for fdt

[Andy Yan]

Hi Simon:

Simon Glass <sjg at chromium.org> 于2018年8月30日周四 上午8:42写道：

> On 7 August 2018 at 05:44, Andy Yan <andy.yan at rock-chips.com> wrote:
> > Memory region for fdt should be reserved, or they
> > may be allocated by other module via lmb_alloc.
> > Then the fdt data will be destroy.
> >
> > We found a case on a board with 64MB DRAM like bellow:
> >
> > No ethernet found.
> > Hit any key to stop autoboot:  0
> > ANDROID: reboot reason: "recovery"
> > FDT load addr 0x10f00000 size 41 KiB
> > Booting kernel at 0x2008000 with fdt at 2c8ac00...
> >
> > lmb_add base:0x58000 size:0x3fa8000
> > lmb_add base:0x0 size:0x0
> > lmb_reserve base:0x34ca2a0 size:0xb35d60
> >   Booting Android Image at 0x02008000 ...
> > Kernel load addr 0x02008800 size 3808 KiB
> > RAM disk load addr 0x11000000 size 9000 KiB
> > *  fdt: cmdline image address = 0x02c8ac00
> >   Checking for 'FDT'/'FDT Image' at 02c8ac00
> > *  fdt: raw FDT blob
> >    Flattened Device Tree blob at 02c8ac00
> >    Booting using the fdt blob at 0x2c8ac00
> >    of_flat_tree at 0x02c8ac00 size 0x00009d6d
> >    XIP Kernel Image ... OK
> > do_bootm_states reserve: 0x2008800 -- 0x3b7c30
> > lmb_reserve base:0x2008800 size:0x3b7c30
> > no initrd_high
> > env_get_bootm_size size:66748416(0x3fa8000) tmp:360448(0x58000)
> > start:360448(0x58000)
> >    initrd_high = 0x03fa8000, copy_to_ram = 1
> >    Loading Ramdisk to 02c00000, end 034c9d09 ... OK
> > ERROR: image is not a fdt - must RESET the board to recover.
> > FDT creation failed! hanging...### ERROR ### Please RESET the board ###
> >
> > Signed-off-by: Andy Yan <andy.yan at rock-chips.com>
> > ---
> >
> >  common/image-fdt.c | 1 +
> >  1 file changed, 1 insertion(+)
>
> Reviewed-by: Simon Glass <sjg at chromium.org>
>

Please don't forget to take it, if it okay.

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