Hi: I work on one board based on at9g25evk board now. I find one issue that phy IC isn't reset, so network can't work. Only the different crystal with evk board is connected to PHY IC. I copy the phy-reset part of at9260 to at9g25. It can work now. Please the maintainer of at9gx5 check this. The modification I do is as below:
+ +#ifdef CONFIG_MACB +int at91sam9x5ek_macb_hw_init(void) +{ + struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC; + struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA; + struct at91_rstc *rstc = (struct at91_rstc *)ATMEL_BASE_RSTC; + unsigned long erstl; + + /* Enable EMAC clock */ + writel(1 << ATMEL_ID_EMAC0, &pmc->pcer); + + erstl = readl(&rstc->mr) & AT91_RSTC_MR_ERSTL_MASK; + + /* Need to reset PHY -> 500ms reset */ + 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); + + /* Wait for end hardware reset */ + while (!(readl(&rstc->sr) & AT91_RSTC_SR_NRSTL)) + ; + + /* Restore NRST value */ + writel(AT91_RSTC_KEY | erstl | AT91_RSTC_MR_URSTEN, + &rstc->mr); + + at91_macb_hw_init(); +} +#endif
Best Regards, Alex