[U-Boot] [PATCH] cmd: pci: Adjust display of digits for 64bit address and size

[Kunihiko Hayashi]

Hi Bin,

On Fri, 23 Aug 2019 11:43:55 +0800 <bmeng.cn at gmail.com> wrote:

> Hi Kunihiko,
> 
> On Fri, Aug 23, 2019 at 9:57 AM Kunihiko Hayashi
> <hayashi.kunihiko at socionext.com> wrote:
> >
> > The command "pci bar" and "pci region" display the address and size in
> > 16 characters including "0x", so the command can only display
> > 14 hexadecimal digits if the number of digits in the address and size is
> > less than 14.
> >
> >     ID   Base                Size                Width  Type
> >     ----------------------------------------------------------
> >      0   0x00000020000000  0x00000000100000  64     MEM   Prefetchable
> >      1   0xffff000080000000  0x00000000100000  64     MEM   Prefetchable
> 
> I am not sure why the ID 0 line has 14 digits while the ID 1 line has 16 digits.
> 
> Shouldn't both lines be either 14 digits so that's what you are fixing
> in this patch?

The original format is "%#016llx".
The base address of ID 1, "0xffff000080000000", is greater than
16 characters. So the result value is displayed as it is in 16 digits.

However, the other values are less than 16 characters, and the values are
zero padded. The padded values including "0x" are displayed in 16 characters.
As a result, the values are displayed in 14 digits.

After applying this patch, the values including "0x" are displayed in
18 characters, so the values are always displayed in 16 digits.

Thank you,

---
Best Regards,
Kunihiko Hayashi