AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/drivers/bcma
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Rafał Miłecki 1ca2760fb2 bcma: prepare Kconfig symbol for PCI driver 
Driver for PCIe core requires PCI to be enabled, however we shouldn't
require it for the whole bus. Someone may be not interested in extra
PCI devices and what's more there are SoCs without any PCI at all (like
BCM5356C0, BCM5357*, BCM47186B0). For more details see Kconfig "help".
Please note this patch doesn't allow disabling PCI drivers yet, as it
requires more work on calls to bcma_core_pci_* functions.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-05 14:11:45 +02:00
..
bcma_private.h bcma: move internal function declarations to private header 2015-03-05 14:11:43 +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: gpio: enable GPIO IRQ domain on BCM5301X 2015-03-03 15:56:07 +02:00
driver_mips.c Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2014-12-11 17:56:37 -08:00
driver_pci_host.c bcma: add missing includes 2015-03-03 15:26:38 +02:00
driver_pci.c bcma: change IRQ control function to accept bus as an argument 2015-03-02 16:59:45 +02:00
driver_pcie2.c bcma: add missing includes 2015-03-03 15:26:38 +02:00
host_pci.c bcma: enable support for PCIe Gen 2 host devices 2015-03-02 16:59:45 +02:00
host_soc.c bcma: use standard bus scanning during early register 2015-01-23 21:47:55 +02:00
Kconfig bcma: prepare Kconfig symbol for PCI driver 2015-03-05 14:11:45 +02:00
main.c bcma: enable support for PCIe Gen 2 host devices 2015-03-02 16:59:45 +02:00
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.