LXR uboot/drivers/clk/at91/Kconfig

   1config CLK_AT91
   2        bool "AT91 clock drivers"
   3        depends on CLK
   4        select MISC
   5        help
   6          This option is used to enable the AT91 clock driver.
   7          The driver supports the AT91 clock generator, including
   8          the oscillators and PLLs, such as main clock, slow clock,
   9          PLLA, UTMI PLL. Clocks can also be a source clock of other
  10          clocks a tree structure, such as master clock, usb device
  11          clock, matrix clock and generic clock.
  12          Devices can use a common clock API to request a particular
  13          clock, enable it and get its rate.
  14
  15config AT91_UTMI
  16        bool "Support UTMI PLL Clock"
  17        depends on CLK_AT91
  18        select REGMAP
  19        select SPL_REGMAP if SPL_DM
  20        select SYSCON
  21        select SPL_SYSCON if SPL_DM
  22        help
  23          This option is used to enable the AT91 UTMI PLL clock
  24          driver. It is the clock provider of USB, and UPLLCK is the
  25          output of 480 MHz UTMI PLL, The souce clock of the UTMI
  26          PLL is the main clock, so the main clock must select the
  27          fast crystal oscillator to meet the frequency accuracy
  28          required by USB.
  29
  30config AT91_USB_CLK
  31        bool "Support USB OHCI Input Clock"
  32        depends on CLK_AT91
  33        help
  34          This option is used to enable the USB Input Clock, from
  35          the device tree, configure the USBS bit (PLLA or UTMI PLL)
  36          and USBDIV field of the PMC_USB register.
  37
  38config AT91_H32MX
  39        bool "Support H32MX 32-bit Matrix Clock"
  40        depends on CLK_AT91
  41        help
  42          This option is used to enable the AT91 H32MX matrixes
  43          clock driver. There are H64MX and H32MX matrixes clocks,
  44          H64MX 64-bit matrix clocks are MCK. The H32MX 32-bit
  45          matrix clock is to be configured as MCK if MCK does not
  46          exceed 83 MHz, else it is to be configured as MCK/2.
  47
  48config AT91_GENERIC_CLK
  49        bool "Support Generic Clock"
  50        depends on CLK_AT91
  51        help
  52          This option is used to enable the AT91 generic clock
  53          driver. Some peripherals may need a second clock source
  54          that may be different from the system clock. This second
  55          clock is the generic clock (GCLK) and is managed by
  56          the PMC via PMC_PCR register.
  57
  58config AT91_SAM9X60_PLL
  59        bool "PLL support for SAM9X60 SoCs"
  60        depends on CLK_AT91
  61        help
  62          This option is used to enable the AT91 SAM9X60's PLL clock
  63          driver.
  64
  65config AT91_SAM9X60_USB
  66        bool "USB Clock support for SAM9X60 SoCs"
  67        depends on CLK_AT91
  68        help
  69          This option is used to enable the AT91 SAM9X60's USB clock
  70          driver.
  71