Dear Wolfgang,
On Sunday 15 May 2011 08:51 PM, Aneesh V wrote:
This series adds mmc SPL support for OMAP4. This is essentially an up-streaming effort for TI's x-loader for OMAP4 using the SPL framework
This work partly draws upon previous work done for x-loader by: Santosh Shilimkarsantosh.shilimkar@ti.com Rajendra Nayakrnayak@ti.com and many others
This series is depedent on the following series: http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/95550
Features supported:
- Clock init - DPLL locking, clock domains/modules enabling
- SDRAM/DMM initialization
- Mux initialization
- MMC raw read support
- MMC FAT read support
Improvments over x-loader:
- Code completely revamped
- DPLL programming that works for all SYS_CLK frequencies
- Automatic SDRAM identification and initialization
- Board dependent parts(especially mux) deferred to u-boot. So, same SPL will work for Panda and SDP and most likely on any other board that comes along
- Determination of u-boot size to avoid reading extra content while loading U-Boot
- Modular apporach to enable future addition of support for all OMAP3/4 platforms
V2:
- Some fixes in SDRAM init, clock init
- Use of pre-calculated M& N values for DPLL locking instead run-time calculation
- Change in make files to allow reuse of common rules between boards
- Console initialization moved further earlier in the boot allowing traces from even clock initialization code
- Reuse utility macros from a previous series
Aneesh V (21): omap4: add OMAP4430 revision check armv7: start.S: provide a hook for saving boot params omap4: save parameters passed by ROM code to SPL arm: new labels in the linker script file Add generic spl infrastructure armv7: start.S: add SPL support omap: add spl support omap4: add spl support for OMAP4 SDP omap4: utility function to identify the context of hw init omap4: separate mux settings into essential and non essential parts omap4: correct mux data for sdp4430 omap4: add clock support omap4: add serial console support to SPL omap4: add sdram init support omap4: calculate EMIF register values omap4: automatic sdram detection armv7: embed u-boot size within u-boot for use from SPL omap: add MMC support to SPL omap: spl: add FAT support over MMC omap4: add spl support for OMAP4 Panda omap: spl: add more debug traces
John Rigby (1): mkimage: Add OMAP boot image support
This work has mainly two parts: 1. Add the missing hardware support for OMAP4 such as clock init, sdram init etc (OMAP4 u-boot worked without these because it was always prececeded by x-loader) 2. Addd SPL support.
Now that SPL framework design is taking time, I was wondering whether I should split the series into two based on the two main tasks above.
That is, I can send out the hw initialization part immediately without waiting for the SPL design to be finalized and send out the SPL support once we concluded the SPL design discussions.
The patches themselves will not change much. Just that they will be separated into two different series. The reviews done so far will not be wasted.
Are you Ok with this approach?
best regards, Aneesh