在 2018-10-22一的 09:17 +0100，André Przywara写道：
On 10/22/18 2:26 AM, Icenowy Zheng wrote:
在 2018-05-17四的 09:16 +0100，Andre Przywara写道：
This series tries to solve three issues we currently have on Allwinner boards:
- The DRAM sizing routine can only cope with power-of-two sized
DRAM.
- The DRAM sizing routine steps through all DRAM, possibly
hitting secure memory.
- The SPL header versioning is quite strict and tends to break
every time we need to update it.
So I thought about introducing something along the lines of semantic versioning[1], where we can add backwards-compatible changes to the SPL header without breaking every tool. This is introduced in the first patch. The second patch does some refactoring, so that the third patch can use the newly gained freedom to store the DRAM size. The SPL knows the DRAM size very well, so we store this in the SPL header, so that U- Boot proper can pick it up from there. This saves the call to get_ram_size() with its deficiencies. More information in the respective commit messages.
I understand that this versioning solution is not fully future- proof, but we have only one byte for the version, and I just wanted to start discussion on this. There is a corresponding patch for sunxi-tools as well I am posting shortly.
Could I do some small reworks on this patchset and resend it?
Yes, please. I was thinking about resending it as well. The only issue is that we need the corresponding patch in sunxi-fel as well, ideally before this one goes in.
I think technically this patchset should be merged BEFORE the sunxi-fel patch, because there's no document, and U-Boot works as the document.
But activity was somewhat low on sunxi-tools last time I mentioned this...
Cheers, Andre.
We're now facing 3GiB Pine H64 releasing very soon.
Cheers, Andre.
Andre Przywara (3): sunxi: Extend SPL header versioning sunxi: board.c: refactor SPL header checks sunxi: store DRAM size in SPL header
arch/arm/include/asm/arch-sunxi/spl.h | 22 ++++++++---- board/sunxi/board.c | 66 ++++++++++++++++++++++++++++------- 2 files changed, 70 insertions(+), 18 deletions(-)
-- 2.14.1