linux/drivers/bcma
Rafał Miłecki 8be08a39d4 bcma: implement host code support for PCIe Gen 2 devices
This is stil incomplete, so we don't add PCI IDs of new devices yet.
Purpose of this patch is to allow testing & adjusting rest of the code.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-29 10:54:43 +02:00
..
Kconfig bcma: gpio: add own IRQ domain 2014-01-23 13:02:37 +01:00
Makefile bcma: add support for chipcommon B core 2014-09-09 15:33:05 -04:00
README bcma: add Broadcom specific AMBA bus driver 2011-05-10 15:54:54 -04:00
TODO bcma: add Broadcom specific AMBA bus driver 2011-05-10 15:54:54 -04:00
bcma_private.h bcma: add empty PCIe hostmode functions if support is disabled 2015-01-29 10:52:59 +02:00
core.c bcma: update core (en|dis)abling functions 2013-06-17 14:38:53 -04:00
driver_chipcommon.c bcma: fix watchdog on some ARM chipsets 2015-01-29 10:44:44 +02:00
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_gmac_cmn.c Drivers: bcma: remove __dev* attributes. 2013-01-03 15:57:15 -08:00
driver_gpio.c bcma: make it possible to specify a IRQ num in bcma_core_irq() 2014-11-11 16:31:11 -05:00
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.c bcma: add early_init function for PCIe core and move some fix into it 2015-01-29 10:53:08 +02:00
driver_pci_host.c bcma: make it possible to specify a IRQ num in bcma_core_irq() 2014-11-11 16:31:11 -05:00
driver_pcie2.c bcma: add driver for PCIe Gen 2 core 2014-07-07 16:32:16 -04:00
host_pci.c bcma: implement host code support for PCIe Gen 2 devices 2015-01-29 10:54:43 +02:00
host_soc.c bcma: use standard bus scanning during early register 2015-01-23 21:47:55 +02:00
main.c bcma: add early_init function for PCIe core and move some fix into it 2015-01-29 10:53:08 +02:00
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

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.