Hauke Mehrtens 1a2d503298 bcma: fix compile error
This error was introduced in:
commit e3f05a42faac627d8704c76c1927e09b22443b7b
Author: Hauke Mehrtens <hauke@hauke-m.de>
Date:   Fri Jan 4 00:51:21 2013 +0100

    bcma: mips: explicit assign IRQ numbers

  CC      drivers/bcma/driver_mips.o
drivers/bcma/driver_mips.c: In function 'bcma_core_mips_init':
drivers/bcma/driver_mips.c:302:4: error: implicit declaration of
function 'bcma_core_irq' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[6]: *** [drivers/bcma/driver_mips.o] Error 1

Reported-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11 14:49:59 -05:00
..
2012-12-19 12:47:41 -08:00
2012-11-21 21:55:52 +01:00
2013-01-11 14:49:59 -05:00
2012-08-10 15:26:52 -04:00
2012-11-21 21:55:52 +01:00
2012-11-21 21:55:52 +01:00
2012-07-26 15:37:57 -04:00

Broadcom introduced new bus as replacement for older SSB. It is based on AMBA,
however from programming point of view there is nothing AMBA specific we use.

Standard AMBA drivers are platform specific, have hardcoded addresses and use
AMBA standard fields like CID and PID.

In case of Broadcom's cards every device consists of:
1) Broadcom specific AMBA device. It is put on AMBA bus, but can not be treated
   as standard AMBA device. Reading it's CID or PID can cause machine lockup.
2) AMBA standard devices called ports or wrappers. They have CIDs (AMBA_CID)
   and PIDs (0x103BB369), but we do not use that info for anything. One of that
   devices is used for managing Broadcom specific core.

Addresses of AMBA devices are not hardcoded in driver and have to be read from
EPROM.

In this situation we decided to introduce separated bus. It can contain up to
16 devices identified by Broadcom specific fields: manufacturer, id, revision
and class.