On 15:45 Fri 14 Aug , Kumar Gala wrote:
On Aug 14, 2009, at 3:13 PM, Jean-Christophe PLAGNIOL-VILLARD wrote:
On 14:00 Fri 14 Aug , Kumar Gala wrote:
Added a arch_preboot() function that cpu specific code can implement to allow for various modifications to the state of the machine right before we boot. This can be useful to setup register state to a specific configuration.
Signed-off-by: Kumar Gala galak@kernel.crashing.org
common/cmd_bootm.c | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c index 86c8122..766889a 100644 --- a/common/cmd_bootm.c +++ b/common/cmd_bootm.c @@ -166,6 +166,13 @@ void __arch_lmb_reserve(struct lmb *lmb) } void arch_lmb_reserve(struct lmb *lmb) __attribute__((weak, alias("__arch_lmb_reserve")));
+/* Allow for arch specific config before we boot */ +void __arch_preboot(void) +{
- /* please define platform specific arch_preboot() */
+} +void arch_preboot(void) __attribute__((weak, alias("__arch_preboot")));
why not a section so you will be able to have multiple callback so it can be arch or soc or board too in any combination
Because the use I have for it is a simple single case at this point.
If and when we need more complexity we can add it.
we have already it as example the usb drivers that need to be stop before start an os I forget some but I'm sure to have seen oher
Best Regards, J.