Linus Torvalds 5c33d9b248 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 13 년 전
..
Kconfig a733311413 bcma: BCMA_DRIVER_GPIO should depend on GPIOLIB instead of selecting it 13 년 전
Makefile cf0936b06d bcma: add GPIO driver 13 년 전
README 8369ae33b7 bcma: add Broadcom specific AMBA bus driver 14 년 전
TODO 8369ae33b7 bcma: add Broadcom specific AMBA bus driver 14 년 전
bcma_private.h 0f58a01ddd Drivers: bcma: remove __dev* attributes. 13 년 전
core.c 1fd41a65f1 bcma: change delays to follow timers-howto guide 13 년 전
driver_chipcommon.c cebfa85eb8 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 13 년 전
driver_chipcommon_nflash.c e661b75a44 bcma: mark nflash if it is the boot flash 13 년 전
driver_chipcommon_pmu.c ca2a88f56a Merge tag 'for-linus-20121219' of git://git.infradead.org/linux-mtd 13 년 전
driver_chipcommon_sflash.c 4dd6ff72c4 bcma: correct M25P32 serial flash ID 13 년 전
driver_gmac_cmn.c 0f58a01ddd Drivers: bcma: remove __dev* attributes. 13 년 전
driver_gpio.c cf0936b06d bcma: add GPIO driver 13 년 전
driver_mips.c cbbc0138ef bcma: mips: fix clearing device IRQ 13 년 전
driver_pci.c 0f58a01ddd Drivers: bcma: remove __dev* attributes. 13 년 전
driver_pci_host.c 0f58a01ddd Drivers: bcma: remove __dev* attributes. 13 년 전
host_pci.c 0f58a01ddd Drivers: bcma: remove __dev* attributes. 13 년 전
host_soc.c 94f3457f4d bcma: make some functions static 13 년 전
main.c 0f58a01ddd Drivers: bcma: remove __dev* attributes. 13 년 전
scan.c 9dbf5f55f8 bcma: add missing iounmap on error path 13 년 전
scan.h 97cfda8fec bcma: fix typo - reading number of slave wrappers 13 년 전
sprom.c 017c4c3bde bcma: use fallback sprom if sprom on card was not valid 13 년 전

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.