From mboxrd@z Thu Jan  1 00:00:00 1970
From: York Sun <yorksun@freescale.com>
Date: Tue, 11 Feb 2014 13:02:19 -0800
Subject: [U-Boot] [PATCH] driver/mxc_i2c: Move static data structure to
 global_data
In-Reply-To: <20140211205708.A76B0380439@gemini.denx.de>
References: <1392069772-24742-1-git-send-email-yorksun@freescale.com>
	<52F98C18.7020402@freescale.com>
	<52FA7915.8000307@boundarydevices.com>
	<52FA7DFD.5060406@freescale.com>
	<20140211195918.69BCE38032B@gemini.denx.de>
	<52FA8205.1090206@freescale.com>
	<20140211205708.A76B0380439@gemini.denx.de>
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On 02/11/2014 12:57 PM, Wolfgang Denk wrote:
> Dear York,
> 
> In message <52FA8205.1090206@freescale.com> you wrote:
>>
>>> So ideally keep this data on the stack, and if there is no way around
>>> it, in the global data structure.
>>
>> Agreed. I tried to use global data at first, which upsets Tom. Tom suggested to
>> use linker script. I guess he was under the impression I was using SPL. Let me
>> try harder to use stack.
> 
> 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.
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.

York