Hi Mark,
On Thu, Aug 27, 2015 at 05:31:09PM +0100, Mark Rutland wrote:
> On Wed, Aug 26, 2015 at 07:59:50AM +0100, Leo Yan wrote:
> > Hi Haojian,
> >
> > On Wed, Aug 26, 2015 at 09:25:41AM +0800, Haojian Zhuang wrote:
> > > On Wed, 2015-08-26 at 00:00 +0800, Leo Yan wrote:
> > > > On Tue, Aug 25,
> > Option 2:
> >
> > memory@0 {
> > device_type = "memory";
> > reg = <0x0 0x0 0x0 0x4000>;
> > };
> >
> > reserved-memory {
> > #address-cells = <2>;
> > #size-cells = <2>;
> > ranges;
> >
> > mcu_reserved:
On Wed, Aug 26, 2015 at 07:59:50AM +0100, Leo Yan wrote:
> Hi Haojian,
>
> On Wed, Aug 26, 2015 at 09:25:41AM +0800, Haojian Zhuang wrote:
> > On Wed, 2015-08-26 at 00:00 +0800, Leo Yan wrote:
> > > On Tue, Aug 25, 2015 at 09:43:14PM +0800, Haojian Zhuang wrote:
> > > > On Tue, 2015-08-25 at 11:42
On 26/08/15 02:25, Haojian Zhuang wrote:
Option 1:
memory@0 {
device_type = "memory";
reg = <0x 0x 0x 0x05e0>,
<0x 0x05f0 0x 0x00eff000>,
<0x 0x06e0 0x0
Hi Haojian,
On Wed, Aug 26, 2015 at 09:25:41AM +0800, Haojian Zhuang wrote:
> On Wed, 2015-08-26 at 00:00 +0800, Leo Yan wrote:
> > On Tue, Aug 25, 2015 at 09:43:14PM +0800, Haojian Zhuang wrote:
> > > On Tue, 2015-08-25 at 11:42 +0100, Mark Rutland wrote:
> > > > > > Are you then going to hack GR
On Tue, 2015-08-25 at 16:37 +0100, Leif Lindholm wrote:
> On Tue, Aug 25, 2015 at 04:51:22PM +0200, Ard Biesheuvel wrote:
> > >>Arm kernel should either fetch memory information from
> > >>efi or DT.
> > >
> > > Absolutely.
> > >
> > >>Currently arm kernel fetch both efi memory informat
On Wed, 2015-08-26 at 00:00 +0800, Leo Yan wrote:
> On Tue, Aug 25, 2015 at 09:43:14PM +0800, Haojian Zhuang wrote:
> > On Tue, 2015-08-25 at 11:42 +0100, Mark Rutland wrote:
> > > > > Are you then going to hack GRUB, release a special HiKey version of
> > > > > GRUB, not support any other versions
On Tue, Aug 25, 2015 at 09:43:14PM +0800, Haojian Zhuang wrote:
> On Tue, 2015-08-25 at 11:42 +0100, Mark Rutland wrote:
> > > > Are you then going to hack GRUB, release a special HiKey version of
> > > > GRUB, not support any other versions, and still can your firmware
> > > > UEFI?
> > >
> > > I
On 25 August 2015 at 17:37, Leif Lindholm wrote:
> On Tue, Aug 25, 2015 at 04:51:22PM +0200, Ard Biesheuvel wrote:
>> >>Arm kernel should either fetch memory information from
>> >>efi or DT.
>> >
>> > Absolutely.
>> >
>> >>Currently arm kernel fetch both efi memory information and
>> >
On Tue, Aug 25, 2015 at 04:51:22PM +0200, Ard Biesheuvel wrote:
> >>Arm kernel should either fetch memory information from
> >>efi or DT.
> >
> > Absolutely.
> >
> >>Currently arm kernel fetch both efi memory information and
> >>reserved buffer from DTB at the same time.
> >
> > No,
On 25 August 2015 at 16:24, Leif Lindholm wrote:
> On Tue, Aug 25, 2015 at 09:43:14PM +0800, Haojian Zhuang wrote:
>> Since we discussed a lot on this, let's make a conclusion on it.
>>
>> 1. UEFI could append the reserved buffer in it's memory mapping.
>
> Yes. It needs to.
>
> (I will let Mark c
On Tue, Aug 25, 2015 at 09:43:14PM +0800, Haojian Zhuang wrote:
> Since we discussed a lot on this, let's make a conclusion on it.
>
> 1. UEFI could append the reserved buffer in it's memory mapping.
Yes. It needs to.
(I will let Mark comment on points 2-4.)
> 5. A patch is necessary in kernel.
On 25/08/15 15:04, Leo Yan wrote:
Hi Sudeep,
On Tue, Aug 25, 2015 at 12:36:12PM +0100, Sudeep Holla wrote:
On 19/08/15 10:37, Leo Yan wrote:
On Hi6220, below memory regions in DDR have specific purpose:
0x05e0, - 0x05ef,: For MCU firmware using at runtime;
0x0740,f000 - 0x07
Hi Sudeep,
On Tue, Aug 25, 2015 at 12:36:12PM +0100, Sudeep Holla wrote:
>
>
> On 19/08/15 10:37, Leo Yan wrote:
> >On Hi6220, below memory regions in DDR have specific purpose:
> >
> > 0x05e0, - 0x05ef,: For MCU firmware using at runtime;
> > 0x0740,f000 - 0x0740,: For MCU firmw
On Tue, 2015-08-25 at 11:42 +0100, Mark Rutland wrote:
> > > Are you then going to hack GRUB, release a special HiKey version of
> > > GRUB, not support any other versions, and still can your firmware
> > > UEFI?
> >
> > I don't need to hack GRUB at all.
>
> Then it is working for you by pure cha
On 19/08/15 10:37, Leo Yan wrote:
On Hi6220, below memory regions in DDR have specific purpose:
0x05e0, - 0x05ef,: For MCU firmware using at runtime;
0x0740,f000 - 0x0740,: For MCU firmware's section;
0x06df,f000 - 0x06df,: For mailbox message data.
Unless I am read
Hi,
On Tue, Aug 25, 2015 at 09:04:45AM +0100, Haojian Zhuang wrote:
> On Mon, 2015-08-24 at 13:48 +0100, Mark Rutland wrote:
> > > > > > I don't see why you need reserved-memory here, given you're not
> > > > > > referring to
> > > > > > these regions by phandle anyway.
> > > > >
> > > > > - Now
On Tue, Aug 25, 2015 at 11:15:10AM +0100, Haojian Zhuang wrote:
> On Tue, 2015-08-25 at 10:46 +0100, Leif Lindholm wrote:
> > On Tue, Aug 25, 2015 at 04:13:47PM +0800, Haojian Zhuang wrote:
> > > On Mon, 2015-08-24 at 12:49 +0100, Leif Lindholm wrote:
> > > > On Mon, Aug 24, 2015 at 06:19:56PM +080
On Tue, Aug 25, 2015 at 06:15:10PM +0800, Haojian Zhuang wrote:
> > > 1. We need support both UEFI and uboot. So the reserved buffer have to
> > > be declared in DTB since they are used by kernel driver, not UEFI.
> >
> > The buffer may need to be declared in DTB also, but it most certanily
> > ne
On Tue, 2015-08-25 at 10:46 +0100, Leif Lindholm wrote:
> On Tue, Aug 25, 2015 at 04:13:47PM +0800, Haojian Zhuang wrote:
> > On Mon, 2015-08-24 at 12:49 +0100, Leif Lindholm wrote:
> > > On Mon, Aug 24, 2015 at 06:19:56PM +0800, Haojian Zhuang wrote:
> > > > > If your EFI memory map describes the
On Tue, Aug 25, 2015 at 04:13:47PM +0800, Haojian Zhuang wrote:
> On Mon, 2015-08-24 at 12:49 +0100, Leif Lindholm wrote:
> > On Mon, Aug 24, 2015 at 06:19:56PM +0800, Haojian Zhuang wrote:
> > > > If your EFI memory map describes the memory as mappable, it is wrong.
> > >
> > > When kernel is wor
On Mon, 2015-08-24 at 12:49 +0100, Leif Lindholm wrote:
> On Mon, Aug 24, 2015 at 06:19:56PM +0800, Haojian Zhuang wrote:
> > > If your EFI memory map describes the memory as mappable, it is wrong.
> >
> > When kernel is working, kernel will create its own page table based on
> > UEFI memory map.
On Mon, 2015-08-24 at 13:48 +0100, Mark Rutland wrote:
> > > > > I don't see why you need reserved-memory here, given you're not
> > > > > referring to
> > > > > these regions by phandle anyway.
> > > >
> > > > - Now we have enabled EFI_STUB, so the memory node will be removed in
> > > > kernel
> > > > I don't see why you need reserved-memory here, given you're not
> > > > referring to
> > > > these regions by phandle anyway.
> > >
> > > - Now we have enabled EFI_STUB, so the memory node will be removed in
> > > kernel:
> > > efi_entry()
> > > \-> allocate_new_fdt_and_exit_b
On Mon, Aug 24, 2015 at 06:19:56PM +0800, Haojian Zhuang wrote:
> > If your EFI memory map describes the memory as mappable, it is wrong.
>
> When kernel is working, kernel will create its own page table based on
> UEFI memory map. Since it's reserved in DTS file as Leo's patch, it'll
> be moved t
On Mon, 2015-08-24 at 10:51 +0100, Mark Rutland wrote:
> On Mon, Aug 24, 2015 at 10:18:45AM +0100, Leo Yan wrote:
> > Hi Mark,
> >
> > On Fri, Aug 21, 2015 at 07:40:59PM +0100, Mark Rutland wrote:
> > > On Wed, Aug 19, 2015 at 10:37:35AM +0100, Leo Yan wrote:
> > > > On Hi6220, below memory region
On Mon, Aug 24, 2015 at 10:18:45AM +0100, Leo Yan wrote:
> Hi Mark,
>
> On Fri, Aug 21, 2015 at 07:40:59PM +0100, Mark Rutland wrote:
> > On Wed, Aug 19, 2015 at 10:37:35AM +0100, Leo Yan wrote:
> > > On Hi6220, below memory regions in DDR have specific purpose:
> > >
> > > 0x05e0, - 0x05ef
Hi Mark,
On Fri, Aug 21, 2015 at 07:40:59PM +0100, Mark Rutland wrote:
> On Wed, Aug 19, 2015 at 10:37:35AM +0100, Leo Yan wrote:
> > On Hi6220, below memory regions in DDR have specific purpose:
> >
> > 0x05e0, - 0x05ef,: For MCU firmware using at runtime;
> > 0x0740,f000 - 0x0740,ff
Hi Mark,
On Sat, Aug 22, 2015 at 09:30:50PM +0800, Leo Yan wrote:
> On Fri, Aug 21, 2015 at 07:40:59PM +0100, Mark Rutland wrote:
> > On Wed, Aug 19, 2015 at 10:37:35AM +0100, Leo Yan wrote:
> > > On Hi6220, below memory regions in DDR have specific purpose:
> > >
> > > 0x05e0, - 0x05ef,fff
Hi Mark,
On Fri, Aug 21, 2015 at 07:40:59PM +0100, Mark Rutland wrote:
> On Wed, Aug 19, 2015 at 10:37:35AM +0100, Leo Yan wrote:
> > On Hi6220, below memory regions in DDR have specific purpose:
> >
> > 0x05e0, - 0x05ef,: For MCU firmware using at runtime;
> > 0x0740,f000 - 0x0740,ff
On Wed, Aug 19, 2015 at 10:37:35AM +0100, Leo Yan wrote:
> On Hi6220, below memory regions in DDR have specific purpose:
>
> 0x05e0, - 0x05ef,: For MCU firmware using at runtime;
> 0x0740,f000 - 0x0740,: For MCU firmware's section;
> 0x06df,f000 - 0x06df,: For mailbox message
On Hi6220, below memory regions in DDR have specific purpose:
0x05e0, - 0x05ef,: For MCU firmware using at runtime;
0x0740,f000 - 0x0740,: For MCU firmware's section;
0x06df,f000 - 0x06df,: For mailbox message data.
This patch reserves these memory regions and add device nod
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