Where the bloblist is located in internal memory and TF-A's BL31 blob
removes access to this memory, the best option seems to be to relocate
the bloblist just before running TF-A.
We can do the relocation in board-specific code, but need an option to
pick up the correct address within U-Boot proper.
Series-changes: 2
- Move the actual relocation code to a previous board-specific patch
Series-to: u-boot
Series-links: 3:443538 2:443538 1:442878
Series-version: 6
Cover-letter:
VBE serial part H: Implement VBE on Rockchip RK3399
This series completes the work to enable VBE on a suitable board. Most
of it is rockchip-specific patches to support the VPL phase, i.e. the
one which decides which boot patch to take (A, B or recovery).
A good chunk of this series is adding an image for VBE, by creating a
new Binman image. Future work in Binman may make this more automated /
easier, but for now it is written out in full. The work is undertaken
piecemeal so it is easier to review the steps.
VBE allows similar boards to share firmware images, with perhaps just
TPL (around 75K) being different for each board. Using a common image
for VPL, SPL and U-Boot saves a lot of space in the image and makes
builds easier. Of course, each board still needs a separate devicetree.
Here is the layout of the image:
Name Image-pos Size Entry-type Offset Uncomp-size
----------------------------------------------------------------------------------------------
image 0 1b960cf section 0
alternates-fdt 8000 31000 alternates-fdt 8000
mkimage 8000 31000 mkimage 0
u-boot-tpl 8048 12a11 u-boot-tpl 48
vpl 208000 16200 fit 208000
image-vpl 209400 a5a3 section 1400
section 209400 a5a3 section 0
u-boot-vpl-nodtb 10348 u-boot-vpl-nodtb 0
u-boot-vpl-bss-pad 20 u-boot-vpl-bss-pad 10348
@fdt-SEQ 0 0 section 0
vbe-a 800000 39b200 section 800000
spl-a 800000 100000 fit 0
spl 801400 10c97 section 1400
section 801400 10c97 section 0
u-boot-spl-nodtb 1a908 u-boot-spl-nodtb 0
u-boot-spl-bss-pad 1b0 u-boot-spl-bss-pad 1a908
@fdt-SEQ 0 0 section 0
u-boot-a 900000 29b200 fit 100000
spl 902400 10c97 section 2400
section 902400 10c97 section 0
u-boot-spl-nodtb 1a908 u-boot-spl-nodtb 0
u-boot-spl-bss-pad 1b0 u-boot-spl-bss-pad 1a908
u-boot 913200 e4250 section 13200
u-boot-nodtb 913200 e4250 u-boot-nodtb 0
@atf-SEQ 0 0 section 0
atf-bl31 0 0 atf-bl31 0
@tee-SEQ 0 0 section 0
tee-os 0 0 tee-os 0
@fdt-SEQ 0 0 section 0
vbe-b 1000000 39b200 section 1000000
spl-b 1000000 100000 fit 0
spl 1001400 10c97 section 1400
section 1001400 10c97 section 0
u-boot-spl-nodtb 1a908 u-boot-spl-nodtb 0
u-boot-spl-bss-pad 1b0 u-boot-spl-bss-pad 1a908
@fdt-SEQ 0 0 section 0
u-boot-b 1100000 29b200 fit 100000
spl 1102400 10c97 section 2400
section 1102400 10c97 section 0
u-boot-spl-nodtb 1a908 u-boot-spl-nodtb 0
u-boot-spl-bss-pad 1b0 u-boot-spl-bss-pad 1a908
u-boot 1113200 e4250 section 13200
u-boot-nodtb 1113200 e4250 u-boot-nodtb 0
@atf-SEQ 0 0 section 0
atf-bl31 0 0 atf-bl31 0
@tee-SEQ 0 0 section 0
tee-os 0 0 tee-os 0
@fdt-SEQ 0 0 section 0
vbe-recovery 1800000 39b200 section 1800000
spl-recovery 1800000 100000 fit 0
spl 1801400 10c97 section 1400
section 1801400 10c97 section 0
u-boot-spl-nodtb 1a908 u-boot-spl-nodtb 0
u-boot-spl-bss-pad 1b0 u-boot-spl-bss-pad 1a908
@fdt-SEQ 0 0 section 0
u-boot-recovery 1900000 29b200 fit 100000
spl 1902400 10c97 section 2400
section 1902400 10c97 section 0
u-boot-spl-nodtb 1a908 u-boot-spl-nodtb 0
u-boot-spl-bss-pad 1b0 u-boot-spl-bss-pad 1a908
u-boot 1913200 e4250 section 13200
u-boot-nodtb 1913200 e4250 u-boot-nodtb 0
@atf-SEQ 0 0 section 0
atf-bl31 0 0 atf-bl31 0
@tee-SEQ 0 0 section 0
tee-os 0 0 tee-os 0
@fdt-SEQ 0 0 section 0
fdtmap 1b9b200 2ecf fdtmap 1b9b200
This series still includes the bloblist reverts, at the end, just so
that the board doesn't have on boot, but I have a series locally which
should improve things, so I will send that when complete.
This is (mostly) the final VBE series, but there are a few loose ends to
tidy up:
- cache is disabled in SPL, which slows the boot a little
- pinctrl init needs to be tidied up to avoid warnings
- bloblist logic as above
- bloblist-relocation is partly in board-specific code, partly generic
Other things may become apparently after more usage / testing.
END
Signed-off-by: Simon Glass <sjg@chromium.org>
4c278ea699