On 02/11/2014 02:12 PM, Wolfgang Denk wrote:
Dear York,
In message 52FA8FDB.3030808@freescale.com you wrote:
well, to do something with the linker script, you need some memory somewhere you can use for this purpose. Your example showed SRAM. so if you do have SRAM on that board - why do you not use it for stack and GD? Where is your steck and GD right now?
The initial stack and GD are in SRAM. Of course they are moved to SDRAM after initialization. I intend to spare SRAM for other purpose after relocation.
Well, after relocation GD has also been relocated, so your SRAM would be comletely unused.
Sounds like you are OK with using GD for this patch. Let's wait to hear from Tom. He nacked this idea.
I am scratching my head trying to figure out how to put this variable "srdata" in mxc_i2c.c into stack. Please give me some guidance if you have the idea on top of your head.
I have no idea which code you are talking about - sorry.
http://patchwork.ozlabs.org/patch/319073/
-/* - * For SPL boot some boards need i2c before SDRAM is initialized so force - * variables to live in SRAM - */ -static struct sram_data __attribute__((section(".data"))) srdata; -
I moved this variable into GD. Is there a alternative way to do it? I tried to use stack but didn't find the solution.
York