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drivers
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bcma
Linus Torvalds c0222ac086 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus %!s(int64=11) %!d(string=hai) anos
..
Kconfig 2997609eb4 bcma: gpio: add own IRQ domain %!s(int64=12) %!d(string=hai) anos
Makefile 1716bcf3f7 bcma: add support for chipcommon B core %!s(int64=11) %!d(string=hai) anos
README 8369ae33b7 bcma: add Broadcom specific AMBA bus driver %!s(int64=14) %!d(string=hai) anos
TODO 8369ae33b7 bcma: add Broadcom specific AMBA bus driver %!s(int64=14) %!d(string=hai) anos
bcma_private.h ab54bc8460 bcma: fill core details for every device %!s(int64=11) %!d(string=hai) anos
core.c 972da7ec49 bcma: update core (en|dis)abling functions %!s(int64=12) %!d(string=hai) anos
driver_chipcommon.c 85eb92e818 bcma: make it possible to specify a IRQ num in bcma_core_irq() %!s(int64=11) %!d(string=hai) anos
driver_chipcommon_b.c 1716bcf3f7 bcma: add support for chipcommon B core %!s(int64=11) %!d(string=hai) anos
driver_chipcommon_nflash.c f5237f278f Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem %!s(int64=13) %!d(string=hai) anos
driver_chipcommon_pmu.c 27cfdb0505 bcma: add support for BCM43131 that was found in Tenda W311E %!s(int64=11) %!d(string=hai) anos
driver_chipcommon_sflash.c 3ee373055b bcma: fix sparse warnings in driver_chipcommon_sflash.c %!s(int64=12) %!d(string=hai) anos
driver_gmac_cmn.c 0f58a01ddd Drivers: bcma: remove __dev* attributes. %!s(int64=13) %!d(string=hai) anos
driver_gpio.c 85eb92e818 bcma: make it possible to specify a IRQ num in bcma_core_irq() %!s(int64=11) %!d(string=hai) anos
driver_mips.c c0222ac086 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus %!s(int64=11) %!d(string=hai) anos
driver_pci.c 2bedea8f26 bcma: make bcma_core_pci_{up,down}() callable from atomic context %!s(int64=12) %!d(string=hai) anos
driver_pci_host.c 85eb92e818 bcma: make it possible to specify a IRQ num in bcma_core_irq() %!s(int64=11) %!d(string=hai) anos
driver_pcie2.c f473832fec bcma: add driver for PCIe Gen 2 core %!s(int64=11) %!d(string=hai) anos
host_pci.c 34b6d42999 bcma: add another PCI ID of device with BCM43228 %!s(int64=11) %!d(string=hai) anos
host_soc.c 2101e533f4 bcma: register bcma as device tree driver %!s(int64=11) %!d(string=hai) anos
main.c ab1f5a532c Merge commit '4e6ce4dc7ce71d0886908d55129d5d6482a27ff9' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless %!s(int64=11) %!d(string=hai) anos
scan.c ab54bc8460 bcma: fill core details for every device %!s(int64=11) %!d(string=hai) anos
scan.h 97cfda8fec bcma: fix typo - reading number of slave wrappers %!s(int64=13) %!d(string=hai) anos
sprom.c 27cfdb0505 bcma: add support for BCM43131 that was found in Tenda W311E %!s(int64=11) %!d(string=hai) anos

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.