p p1t/a>Broadcom introduced new bus as replacement for older SSB. It is based
p p2t/a>however from programming point of view there is nothing AMBA specific we use.
p p3t/a>"p p4t/a>Standard AMBA drivers are platform specific, have hardcoded addresses and use"p p5t/a>AMBA standard fields like CID and PID.
p p6t/a>"p p7t/a>I2 case of Broadcom's cards every device consists of:"p p8t/a>1) Broadcom specific AMBA device. It is put
AMBA bus, but can not be treated"p p9t/a>p pas standard AMBA device. Reading it's CID or PID can cause machine lockup.
va>2) AMBA standard devices called ports or wrappers. They have CIDs (AMBA_CID)
p 11t/a>p pand PIDs (0x103BB369), but we do not use that info for anything. One of that
p 12t/a>p pdevices is used for managing Broadcom specific core.
p 13t/a>"p 14t/a>Addresses of AMBA devices are not hardcoded in driverpand have to be read from"p 15t/a>EPROM.
p 16t/a>"p 17t/a>I2 this situan>
we decided to introduce separated bus. It can contain up to"p 18t/a>16pdevices identified by Broadcom specific fields: manufac.urer, id, revis>
"p 19t/a>and class.
p 2 va>