23 Sep
2012
23 Sep
'12
8:01 p.m.
On 08/08/2012 15:55, Benoît Thébaudeau wrote:
The NAND Flash of the KARO TX25 board is a Samsung K9F1G08U0B with 25-ns R/W cycle times. However, the NFC clock for this board was set to 66.5 MHz, so using the NFC driver in symmetric mode (i.e. 1 NFC clock cycle = 1 NF R/W cycle) resulted in NF R/W cycle times of 15 ns, hence corrupted NF accesses.
This patch fixes this issue by setting the NFC clock to the highest frequency complying to the 25-ns NF R/W cycle times specification, i.e. 33.25 MHz.
Applied to u-boot-imx(fix), thanks.
Best regards, Stefano Babic
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