Re: [U-Boot] BSS footprint of FAT very high - SPL issues

Hello Sughosh,

On Thursday 03 February 2011 12:19 PM, sughosh ganu wrote:

hi Aneesh,

On Wed, Feb 2, 2011 at 7:31 PM, Aneesh V <aneesh@ti.com mailto:aneesh@ti.com> wrote:

Yes. These are variables that otherwise would go to BSS. I do this
because I need them before SDRAM initialization. One of this is the gd
structure. I allocate gd structure in .data that is in IRAM.
Why I need gd before SDRAM? Because I try to initialize serial console
as early as possible and this code has some reference to gd.

I had added serial console support in my nand_spl code for the hawkboard port(referring existing FSL boards). I think the serial console can be initialised using NS16550_init, which does not access any gd variable. This is assuming that you can use the ns16550 serial driver :)

Thanks for the input. Yes, we are using ns16550 driver.

However, I would still need gd because it is getting used in other places like the mmc driver that I have to use in the SPL.

Best regards, Aneesh