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History

John W. Linville 9ebea3829f Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless Conflicts: drivers/net/wireless/ath/ath9k/main.c drivers/net/wireless/iwlwifi/dvm/tx.c		2013-01-28 13:54:03 -05:00
..
bcma_private.h	bcma: make bcma_find_core_unit() accessible	2013-01-07 15:18:28 -05:00
core.c	bcma: change delays to follow timers-howto guide	2012-09-28 13:54:02 -04:00
driver_chipcommon_nflash.c	bcma: mark nflash if it is the boot flash	2012-10-19 15:52:37 -04:00
driver_chipcommon_pmu.c	MTD pull for 3.8	2012-12-19 12:47:41 -08:00
driver_chipcommon_sflash.c	bcma: correct M25P32 serial flash ID	2013-01-02 14:38:27 -05:00
driver_chipcommon.c	bcma: return the mips irq number in bcma_core_irq	2013-01-11 14:49:59 -05:00
driver_gmac_cmn.c	bcma: add trivial GBIT MAC COMMON driver	2012-07-12 15:27:18 -04:00
driver_gpio.c	bcma: add GPIO driver	2012-11-21 21:55:52 +01:00
driver_mips.c	bcma: fix bcm4716/bcm4748 i2s irqflag	2013-01-14 15:10:40 -05:00
driver_pci_host.c	bcma: use consistent case for 'hex' constants	2013-01-14 15:10:41 -05:00
driver_pci.c	bcma: change delays to follow timers-howto guide	2012-09-28 13:54:02 -04:00
host_pci.c	bcma: suspend/resume callbacks should be conditionally compiled on CONFIG_PM_SLEEP	2012-10-29 15:19:31 -04:00
host_soc.c	bcma: make some functions static	2012-08-10 15:26:52 -04:00
Kconfig	bcma: BCMA_DRIVER_GPIO should depend on GPIOLIB instead of selecting it	2013-01-02 14:38:22 -05:00
main.c	bcma: make bcma_find_core_unit() accessible	2013-01-07 15:18:28 -05:00
Makefile	bcma: add GPIO driver	2012-11-21 21:55:52 +01:00
README
scan.c	bcma: add missing iounmap on error path	2012-07-26 15:37:57 -04:00
scan.h	bcma: fix typo - reading number of slave wrappers	2012-07-12 15:27:17 -04:00
sprom.c	bcma: use fallback sprom if sprom on card was not valid	2012-10-19 15:52:53 -04:00
TODO

README

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.