linux/drivers/bcma
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
..
Kconfig bcma: allow enabling serial flash support on non-MIPS SoCs 2016-07-18 22:43:35 +03:00
Makefile bcma: move parallel flash support to separated file 2016-03-07 14:41:08 +02:00
README
TODO
bcma_private.h Revert "bcma: init serial console directly from ChipCommon code" 2017-01-17 14:23:44 +02:00
core.c
driver_chipcommon.c Revert "bcma: init serial console directly from ChipCommon code" 2017-01-17 14:23:44 +02:00
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 bcma: move parallel flash support to separated file 2016-03-07 14:41:08 +02:00
driver_chipcommon_pmu.c bcma: support PMU present as separated bus core 2016-02-06 13:36:11 +02:00
driver_chipcommon_sflash.c mtd: bcm47xxsflash: use ioremap_cache() instead of KSEG0ADDR() 2016-04-04 00:07:57 -07:00
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.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: add Dell Inspiron 3148 2016-11-29 17:35:14 +02:00
host_soc.c bcma: use standard bus scanning during early register 2015-01-23 21:47:55 +02:00
main.c bcma: fill core OF info independently of bus type 2017-03-20 19:12:01 +02:00
scan.c bcma: support chipsets with PMU and GCI cores (devices) 2016-02-06 13:34:51 +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.