kernel_optimize_test

History

Hauke Mehrtens 2b2715b83c bcma: add bcma_core_pci_config_fixup() This code is based on code from pcie_misc_config_fixup() in brcmsmac. This patch is part of the move of pci specific code from brcmsmac to bcma. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Tested-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>		2012-05-16 12:45:22 -04:00
..
bcma_private.h
core.c	bcma: implement setting core clock mode to dynamic	2012-05-16 12:45:22 -04:00
driver_chipcommon_pmu.c
driver_chipcommon.c
driver_mips.c
driver_pci_host.c
driver_pci.c	bcma: add bcma_core_pci_config_fixup()	2012-05-16 12:45:22 -04:00
host_pci.c
host_soc.c
Kconfig
main.c
Makefile
README
scan.c
scan.h
sprom.c	bcma/ssb: parse new attributes from sprom	2012-05-16 12:45:22 -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.