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linux_dsm_epyc7002/drivers/bcma
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Hauke Mehrtens 92ff7a698b bcma: fix build error when build as module 
Currently of_default_bus_match_table is not exported so we can only use
this feature when bcma is build into the kernel. This patch removes
support for child buses when bcma is build as a module as a temporary
fix for a build problem introduces in this commit:

commit cae761b5a6
Author: Rafał Miłecki <zajec5@gmail.com>
Date:   Sun Jun 28 17:17:13 2015 +0200

    bcma: populate bus DT subnodes as platform_device-s

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: cae761b5a6 ("bcma: populate bus DT subnodes as platform_device-s")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-07-26 14:53:37 +03:00
..
bcma_private.h bcma: allow disabling (not building) PCI driver 2015-03-13 16:25:50 +02:00
core.c bcma: update core (en|dis)abling functions 2013-06-17 14:38:53 -04:00
driver_chipcommon_b.c bcma: add support for chipcommon B core 2014-09-09 15:33:05 -04:00
driver_chipcommon_nflash.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2013-02-14 14:23:33 -05:00
driver_chipcommon_pmu.c bcma: add support for BCM43131 that was found in Tenda W311E 2014-07-29 10:32:57 -04:00
driver_chipcommon_sflash.c bcma: fix sparse warnings in driver_chipcommon_sflash.c 2014-01-03 15:37:01 -05:00
driver_chipcommon.c bcma: fix watchdog on some ARM chipsets 2015-01-29 10:44:44 +02:00
driver_gmac_cmn.c Drivers: bcma: remove __dev* attributes. 2013-01-03 15:57:15 -08:00
driver_gpio.c bcma: enable 32 GPIO pins for BCM4707 2015-05-09 16:28:07 +03:00
driver_mips.c MIPS: BCM47xx: Move NVRAM header to the include/linux/. 2015-04-01 17:22:00 +02:00
driver_pci_host.c bcma: add missing includes 2015-03-03 15:26:38 +02:00
driver_pci.c bcma: move PCI IRQ control function to host specific code 2015-03-13 16:25:50 +02:00
driver_pcie2.c bcma: add missing includes 2015-03-03 15:26:38 +02:00
host_pci.c bcma: move PCI IRQ control function to host specific code 2015-03-13 16:25:50 +02:00
host_soc.c bcma: use standard bus scanning during early register 2015-01-23 21:47:55 +02:00
Kconfig bcma: lower dependency of BCMA_DRIVER_PCI_HOSTMODE 2015-06-08 14:33:26 +03:00
main.c bcma: fix build error when build as module 2015-07-26 14:53:37 +03:00
Makefile bcma: prepare Kconfig symbol for PCI driver 2015-03-05 14:11:45 +02:00
README bcma: add Broadcom specific AMBA bus driver 2011-05-10 15:54:54 -04:00
scan.c bcma: use standard bus scanning during early register 2015-01-23 21:47:55 +02:00
scan.h bcma: fix typo - reading number of slave wrappers 2012-07-12 15:27:17 -04:00
sprom.c bcma: detect SPROM revision 11 2015-01-29 10:49:28 +02:00
TODO bcma: add Broadcom specific AMBA bus driver 2011-05-10 15:54:54 -04:00

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.