Linus Torvalds bfaf245022 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 10 vuotta sitten
..
Kconfig 6029e0c59b Revert "bcma: Kconfig: Let it depend on PCI" 10 vuotta sitten
Makefile 1ca2760fb2 bcma: prepare Kconfig symbol for PCI driver 10 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 982a40f5c0 bcma: allow disabling (not building) PCI driver 10 vuotta sitten
core.c 972da7ec49 bcma: update core (en|dis)abling functions 12 vuotta sitten
driver_chipcommon.c 68fcd24503 bcma: fix watchdog on some ARM chipsets 10 vuotta sitten
driver_chipcommon_b.c 1716bcf3f7 bcma: add support for chipcommon B core 11 vuotta sitten
driver_chipcommon_nflash.c f5237f278f Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 12 vuotta sitten
driver_chipcommon_pmu.c 27cfdb0505 bcma: add support for BCM43131 that was found in Tenda W311E 11 vuotta sitten
driver_chipcommon_sflash.c 3ee373055b bcma: fix sparse warnings in driver_chipcommon_sflash.c 11 vuotta sitten
driver_gmac_cmn.c 0f58a01ddd Drivers: bcma: remove __dev* attributes. 12 vuotta sitten
driver_gpio.c 057fcd426e bcma: gpio: use predictable base for all BCM47XX buses 10 vuotta sitten
driver_mips.c 138173d4e8 MIPS: BCM47xx: Move NVRAM header to the include/linux/. 10 vuotta sitten
driver_pci.c 702131e2a3 bcma: move PCI IRQ control function to host specific code 10 vuotta sitten
driver_pci_host.c 2264fc857d bcma: add missing includes 10 vuotta sitten
driver_pcie2.c 2264fc857d bcma: add missing includes 10 vuotta sitten
host_pci.c 702131e2a3 bcma: move PCI IRQ control function to host specific code 10 vuotta sitten
host_soc.c c5ed1df781 bcma: use standard bus scanning during early register 10 vuotta sitten
main.c 9b6cc9a807 bcma: enable support for PCIe Gen 2 host devices 10 vuotta sitten
scan.c c5ed1df781 bcma: use standard bus scanning during early register 10 vuotta sitten
scan.h 97cfda8fec bcma: fix typo - reading number of slave wrappers 13 vuotta sitten
sprom.c 3c31316135 bcma: detect SPROM revision 11 10 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.