Re: [U-Boot] [PATCH v2] at91: Add support for Bluewater Systems Snapper 9G45 module

Hi Simon,

On 02/11/11 04:22, Simon Glass wrote:

• /* Need to reset PHY -> 500ms reset */
• erstl = readl(&rstc->mr) & AT91_RSTC_MR_ERSTL_MASK;
• writel(AT91_RSTC_KEY | AT91_RSTC_MR_ERSTL(13) |

•       AT91_RSTC_MR_URSTEN, &rstc->mr);
  

• writel(AT91_RSTC_KEY | AT91_RSTC_CR_EXTRST, &rstc->cr);

You don't actually need to reset the PHY for 500ms, only 100us, so the AT91_RSTC_MR_ERSTL(13) can be replaced with AT91_RSTC_MR_ERSTL(0), which give you the minimum delay (62ms I think).

Regards, Andre