Hi Tom,
On Thu, Aug 23, 2012 at 1:19 AM, Tom Rini trini@ti.com wrote:
Hey all,
The following patch series merges the davinci and omap-common SPL frameworks into a single framework, CONFIG_SPL_FRAMEWORK along with a few small cleanups to the code to make it a little smaller and more flexible. The end result is that davinci can now opt in on SPL-boots-Linux by just setting the right defines and other platforms would just need to adapt to this framework. In my testing, davinci gains between 300 and 700 bytes for this (not enabling the SPL OS feature) and omap4/5/etc lose just a little bit (from the printf->puts changes). I've tested this on omap3_beagle (xM and classic) and omap4_panda. I don't have any davinci platforms that were previously using SPL so I can't boot-test those changes but since everyone sets CONFIG_SPL_MAX_SIZE, we're OK in that department.
To make this series easier to test I've placed it on http://github.com/trini/u-boot WIP/spl-improvements
I've looked a little into re-reducing the size and the biggest problem I see is that SPI a lot of informational prints that we don't need, strictly speaking, but are nice in a normal U-Boot context. I'm unsure of the best way to quiet these as I don't like the idea of sprinkling http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54303 and I'm sending another email to discuss that.
-- Tom
Changes in v2:
- Add
- Add CONFIG_SYS_SPL_MALLOC_START / SIZE defines from Christian Riesch
- Add arch/arm/cpu/arm926ejs/davinci/config.mk to build u-boot.ais
- Fix checkpatch warning (u32* boot_params_ptr -> u32 *boot_params_ptr)
- Place files into common/spl (due to gcc bug #54303) and include/spl.h
- Reorder all of the patches that used to follow this to precede.
Changes in v3: CONFIG_SPL_FRAMEWORK perform early init. Fixes the cannot reset problem.
Tested it on the LogicPD AM1808 experimenter's kit, works fine now :-) Thanks! Christian
- Fix checkpatch.pl warning
- Fix thinko, Nand -> SPI (spotted by Prabhakar Lad)
- Make u-boot.ais use u-boot.img not u-boot.bin, now that it uses
- Make use of board_init_f being a weak function now so that we can
- Rename to README.da850, add more direct recovery method (Christian Riesch)