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bcma
Hauke Mehrtens ef85fb2830 bcma: add locking around GPIO register accesses 12 vuotta sitten
..
Kconfig 371a00448f bcma: detect and register NAND flash device 13 vuotta sitten
Makefile 23cb3b2121 bcma: add place for flash memory support 13 vuotta sitten
README 8369ae33b7 bcma: add Broadcom specific AMBA bus driver 14 vuotta sitten
TODO 8369ae33b7 bcma: add Broadcom specific AMBA bus driver 14 vuotta sitten
bcma_private.h 371a00448f bcma: detect and register NAND flash device 13 vuotta sitten
core.c 1fd41a65f1 bcma: change delays to follow timers-howto guide 13 vuotta sitten
driver_chipcommon.c ef85fb2830 bcma: add locking around GPIO register accesses 12 vuotta sitten
driver_chipcommon_nflash.c 371a00448f bcma: detect and register NAND flash device 13 vuotta sitten
driver_chipcommon_pmu.c 1fd41a65f1 bcma: change delays to follow timers-howto guide 13 vuotta sitten
driver_chipcommon_sflash.c d57ef3a6a2 bcma: detect and register serial flash device 13 vuotta sitten
driver_gmac_cmn.c e1ac4b4090 bcma: add trivial GBIT MAC COMMON driver 13 vuotta sitten
driver_mips.c d8f1bd2ffc bcma: fix regression in interrupt assignment on mips 13 vuotta sitten
driver_pci.c 1fd41a65f1 bcma: change delays to follow timers-howto guide 13 vuotta sitten
driver_pci_host.c 1fd41a65f1 bcma: change delays to follow timers-howto guide 13 vuotta sitten
host_pci.c 646e0827df bcma: handle BCM43227 13 vuotta sitten
host_soc.c 94f3457f4d bcma: make some functions static 13 vuotta sitten
main.c 1fffa905ad bcma: fix unregistration of cores 12 vuotta sitten
scan.c 9dbf5f55f8 bcma: add missing iounmap on error path 13 vuotta sitten
scan.h 97cfda8fec bcma: fix typo - reading number of slave wrappers 13 vuotta sitten
sprom.c 646e0827df bcma: handle BCM43227 13 vuotta sitten

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.