WSL2-Linux-Kernel/drivers/bcma
Hauke Mehrtens 69b5f4da26 bcma: add support for population subnodes also when build as module
of_default_bus_match_table was not exported earlier, so it could only
be accessed by code compiled into the kernel. A new function
of_platform_default_populate() was added which uses
of_default_bus_match_table and this function is also exported. This way
it is possible to create a bus with the content of
of_default_bus_match_table and we can remove the hacks from bcma.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:59:27 +03:00
..
Kconfig bcma: switch GPIO portions to use GPIOLIB_IRQCHIP 2015-08-18 09:08:47 +03:00
Makefile bcma: prepare Kconfig symbol for PCI driver 2015-03-05 14:11:45 +02:00
README
TODO
bcma_private.h bcma: fix access to host_pdev for PCIe devices 2015-08-10 22:20:46 +03:00
core.c
driver_chipcommon.c bcma: fix watchdog on some ARM chipsets 2015-01-29 10:44:44 +02:00
driver_chipcommon_b.c
driver_chipcommon_nflash.c
driver_chipcommon_pmu.c
driver_chipcommon_sflash.c
driver_gmac_cmn.c
driver_gpio.c bcma: switch GPIO portions to use GPIOLIB_IRQCHIP 2015-08-18 09:08:47 +03:00
driver_mips.c MIPS: BCM47xx: Move NVRAM header to the include/linux/. 2015-04-01 17:22:00 +02:00
driver_pci.c bcma: move PCI IRQ control function to host specific code 2015-03-13 16:25:50 +02:00
driver_pci_host.c bcma: add missing includes 2015-03-03 15:26:38 +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
main.c bcma: add support for population subnodes also when build as module 2015-09-29 10:59:27 +03:00
scan.c bcma: use standard bus scanning during early register 2015-01-23 21:47:55 +02:00
scan.h
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.