linux/drivers/bcma/README
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1 111/a>Broadcom introduced new bus as replacement for older SSB. It is based  >
AMBA,
1 121/a>however from programming point of view there is nothing AMBA specific we use.
1 131/a>n1 141/a>Standard AMBA drivers are platform specific, have hardcoded addresses and usen1 151/a>AMBA standard fields like CID and PID.
1 161/a>n1 171/a>I= case of Broadcom's cards every device consists of:n1 181/a>1) Broadcom specific AMBA device. It is put  >
AMBA bus, but can not be treatedn1 191/a>1 1as standard AMBA device. Reading it's CID or PID can cause machine lockup.
1 pon a>2) AMBA standard devices called ports or wrappers. They have CIDs (AMBA_CID)
1 111/a>1 1and PIDs (0x103BB369), but we do not use that info for anything. One of that
1 121/a>1 1devices is used for managing Broadcom specific core.
1 131/a>n1 141/a>Addresses of AMBA devices are not hardcoded in driver1and have to be read fromn1 151/a>EPROM.
1 161/a>n1 171/a>I= this situa	  >
we decided to introduce separated bus. It can contain up ton1 181/a>161devices identified by Broadcom specific fields: manufaclurer, id, revis  >n1 191/a>and class.
1 2on a>
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