[U-Boot] [PATCH 2/2] OMAP3: Add SPL support to Beagleboard

[Tom Rini <trini@ti.com>]

On 10/27/2011 04:10 PM, Igor Grinberg wrote:
> On 10/27/2011 11:29 PM, Tom Rini wrote:
>> On 10/27/2011 02:18 PM, Igor Grinberg wrote:
>>> On 10/26/2011 11:13 PM, Tom Rini wrote:
[snip]
>>>> +/* nand_command: Send a flash command to the flash chip */
>>>> +static void nand_command(unsigned char command)
>>>> +{
>>>> + 	WRITE_NAND_COMMAND(command, NAND_ADDR);
>>>> +
>>>> +  	if (command == NAND_CMD_RESET) {
>>>> +		unsigned char ret_val;
>>>> +		nand_command(NAND_CMD_STATUS);
>>>> +		do {
>>>> +			ret_val = READ_NAND(NAND_ADDR);/* wait till ready */
>>>> +  		} while ((ret_val & 0x40) != 0x40);
>>> You should be using some kind of timeout, so you will not stuck in here
>>> without being noticed.
>> OK.  I've been wondering if we shouldn't somehow make a
>> not-tied-to-full-mtd nand_command more available since I suspect a few
>> other boards will be in a similar situation, for probing early on.
> 
> That would be much better solution.

(Background if you've otherwise ignored the thread, on some omap3 boards
we need to take a whack at NAND to see what DDR we have)

OK, so, Scott, where would you suggest we put a very trivial set of nand
infrastructure we need outside of the scope of loading u-boot itself
from NAND ?

-- 
Tom