kernel-ark

History

Rafał Miłecki f825f6ed20 bcma: fill core OF info independently of bus type PCI devices can be described in DT as well so we should always execute relevant code. This will make bcma e.g. set of_node for cores described in DT. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>		2017-03-20 19:12:01 +02:00
..
bcma_private.h	Revert "bcma: init serial console directly from ChipCommon code"	2017-01-17 14:23:44 +02:00
core.c
driver_chipcommon_b.c	bcma: define ChipCommon B MII registers	2016-07-19 21:13:10 +03:00
driver_chipcommon_nflash.c
driver_chipcommon_pflash.c
driver_chipcommon_pmu.c
driver_chipcommon_sflash.c
driver_chipcommon.c	Revert "bcma: init serial console directly from ChipCommon code"	2017-01-17 14:23:44 +02:00
driver_gmac_cmn.c
driver_gpio.c	bcma: gpio: set of_node regardless of the host type	2017-03-08 17:04:24 +02:00
driver_mips.c	Revert "bcma: init serial console directly from ChipCommon code"	2017-01-17 14:23:44 +02:00
driver_pci_host.c
driver_pci.c
driver_pcie2.c
host_pci.c	bcma: add Dell Inspiron 3148	2016-11-29 17:35:14 +02:00
host_soc.c
Kconfig	bcma: allow enabling serial flash support on non-MIPS SoCs	2016-07-18 22:43:35 +03:00
main.c	bcma: fill core OF info independently of bus type	2017-03-20 19:12:01 +02:00
Makefile
README
scan.c
scan.h
sprom.c
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.