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Date: Wed, 19 Feb 2014 17:15:52 +0100
From: Daniel Mack <daniel@zonque.org>
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Subject: Re: Question about AM335x SoC supported NAND flash
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On 02/19/2014 05:04 PM, Ezequiel García wrote:
> However, we cannot get the SoC to boot from NAND. We've double-checked
> the hardware
> and the SYSBOOT, but still no luck with it.
> 
> So, I thought about asking here, in case this device is (for some
> reason) not supported by the
> ROM code booting. Maybe someone already struggled with this and has
> some idea to suggest?

We're booting that SoC from an 8-bit NAND, connected to GPMC_CSN0.
SYSBOOT[11:10] is 00b.

The kernel output reads like this:

[    1.320533] nand: device found, Manufacturer ID: 0x98, Chip ID: 0xda
[    1.327280] nand: Toshiba NAND 256MiB 3,3V 8-bit
[    1.332112] nand: 256MiB, SLC, page size: 2048, OOB size: 64
[    1.338077] nand: using OMAP_ECC_BCH8_CODE_HW ECC scheme
[    1.344122] 9 ofpart partitions found on MTD device omap2-nand.0

I wasn't around for early boot-strapping of the platform, so I'm not
aware of any typical pitfalls.

If you want to compare other details between our platforms, let me know.


HTH,
Daniel