On Wed, Jun 06, 2012 at 12:57:05PM -0700, Stephen Warren wrote:
On 06/06/2012 01:53 PM, Tom Warren wrote:
I'll move the SPL to 0x108000 and the normal u-boot to 0x208000 if that sounds more acceptable.
The current flash tools everyone is using expect to flash U-Boot to 0x0108000 (on T20). This works with the non-SPL (current) upstream U-Boot for Tegra, and should continue to work for any new SPL Tegra U-Boot, so that people can use the same flash tools for either build.
Note that the above statement assumes we'll still be able to build either a 'normal' non-SPL build of Tegra U-Boot and a SPL build with your patchset, at least in the interim while we're testing/reviewing these major changes.
I assume that once a board is converted to SPL, you always use a matched/concatenated pair of SPL+non-SPL, i.e. never SPL on its own or non-SPL on its own?
Yes, that's the intention. Although I do have plans down the road for adding memory initialization to the SPL so I can use it for boot/flashing when in recovery mode and there's no BCT. In the normal case they have to be used together.
But that does bring up one point - boards which haven't yet converted to SPL need to still build/link for the original 00108000 address, so the addresses need to depend on config data.
Either that, or just convert all boards at once?
I'll need to convert all the boards. Since I removed the Cortex A9 init from the normal u-boot it will no longer work for non SPL boot. I think that's what we want anyway, I just may need some help testing some of the boards I don't have.
-Allen