int usb_cpu_stop(void) { at91_pmc_t *pmc = (at91_pmc_t *)ATMEL_BASE_PMC; /* Disable USB host clock. */ #ifdef CPU_HAS_PCR at91_periph_clk_disable(ATMEL_ID_UHP); #else writel(1 << ATMEL_ID_UHP, &pmc->pcdr); #endif #if defined(CONFIG_AT91SAM9261) || defined(CONFIG_AT91SAM9G10) writel(ATMEL_PMC_UHP | AT91_PMC_HCK0, &pmc->scdr); #else writel(ATMEL_PMC_UHP, &pmc->scdr); #endif #ifdef CONFIG_USB_ATMEL_CLK_SEL_PLLB #ifdef CONFIG_AT91SAM9N12 writel(0, &pmc->usb); #endif /* Disable PLLB */ writel(0, &pmc->pllbr); while ((readl(&pmc->sr) & AT91_PMC_LOCKB) != 0) ; #elif defined(CONFIG_USB_ATMEL_CLK_SEL_UPLL) /* Disable UPLL */ writel(readl(&pmc->uckr) & (~AT91_PMC_UPLLEN), &pmc->uckr); while ((readl(&pmc->sr) & AT91_PMC_LOCKU) == AT91_PMC_LOCKU) ; #endif return 0; }
int ehci_hcd_stop(int index) { /* Disable USB Host Clock */ at91_periph_clk_disable(ATMEL_ID_UHPHS); /* Disable UTMI PLL */ if (at91_upll_clk_disable()) return -1; return 0; }