1Notes on the the generic USB-OHCI driver 2======================================== 3 4This driver (drivers/usb_ohci.[ch]) is the result of the merge of 5various existing OHCI drivers that were basically identical beside 6cpu/board dependant initalization. This initalization has been moved 7into cpu/board directories and are called via the hooks below. 8 9Configuration options 10---------------------- 11 12CONFIG_USB_OHCI_NEW: enable the new OHCI driver 13 14CFG_USB_OHCI_BOARD_INIT: call the board dependant hooks: 15 16 - extern int usb_board_init(void); 17 - extern int usb_board_stop(void); 18 - extern int usb_cpu_init_fail(void); 19 20CFG_USB_OHCI_CPU_INIT: call the cpu dependant hooks: 21 22 - extern int usb_cpu_init(void); 23 - extern int usb_cpu_stop(void); 24 - extern int usb_cpu_init_fail(void); 25 26CFG_USB_OHCI_REGS_BASE: defines the base address of the OHCI registers 27 28CFG_USB_OHCI_SLOT_NAME: slot name 29 30CFG_USB_OHCI_MAX_ROOT_PORTS: maximal number of ports of the root hub. 31 32 33Endianness issues 34------------------ 35 36The LITTLEENDIAN #define determines if the 'swap_16' and 'swap_32' 37macros do byte swapping or not. But some cpus OHCI-controllers such as 38ppc4xx and mpc5xxx operate in little endian mode, so some extra ifdefs 39were necessary to make this work. 40 41 42 43 44