LXR uboot/drivers/usb/host/ohci-at91.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * (C) Copyright 2006
   4 * DENX Software Engineering <mk@denx.de>
   5 */
   6
   7#include <common.h>
   8
   9#if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT)
  10
  11#include <asm/arch/clk.h>
  12
  13int usb_cpu_init(void)
  14{
  15#ifdef CONFIG_USB_ATMEL_CLK_SEL_PLLB
  16        if (at91_pllb_clk_enable(get_pllb_init()))
  17                return -1;
  18
  19#ifdef CONFIG_AT91SAM9N12
  20        at91_usb_clk_init(AT91_PMC_USBS_USB_PLLB | AT91_PMC_USB_DIV_2);
  21#endif
  22#elif defined(CONFIG_USB_ATMEL_CLK_SEL_UPLL)
  23        if (at91_upll_clk_enable())
  24                return -1;
  25
  26        at91_usb_clk_init(AT91_PMC_USBS_USB_UPLL | AT91_PMC_USBDIV_10);
  27#endif
  28
  29        at91_periph_clk_enable(ATMEL_ID_UHP);
  30
  31        at91_system_clk_enable(ATMEL_PMC_UHP);
  32#if defined(CONFIG_AT91SAM9261) || defined(CONFIG_AT91SAM9G10)
  33        at91_system_clk_enable(AT91_PMC_HCK0);
  34#endif
  35
  36        return 0;
  37}
  38
  39int usb_cpu_stop(void)
  40{
  41        at91_periph_clk_disable(ATMEL_ID_UHP);
  42
  43        at91_system_clk_disable(ATMEL_PMC_UHP);
  44#if defined(CONFIG_AT91SAM9261) || defined(CONFIG_AT91SAM9G10)
  45        at91_system_clk_disable(AT91_PMC_HCK0);
  46#endif
  47
  48#ifdef CONFIG_USB_ATMEL_CLK_SEL_PLLB
  49#ifdef CONFIG_AT91SAM9N12
  50        at91_usb_clk_init(0);
  51#endif
  52
  53        if (at91_pllb_clk_disable())
  54                return -1;
  55
  56#elif defined(CONFIG_USB_ATMEL_CLK_SEL_UPLL)
  57        if (at91_upll_clk_disable())
  58                return -1;
  59#endif
  60
  61        return 0;
  62}
  63
  64int usb_cpu_init_fail(void)
  65{
  66        return usb_cpu_stop();
  67}
  68
  69#endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */
  70