Colin Ian King 950f6f8492 bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA 5 years ago
..
Kconfig b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 7 years ago
Makefile b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 7 years ago
README 8369ae33b7 bcma: add Broadcom specific AMBA bus driver 13 years ago
TODO 8369ae33b7 bcma: add Broadcom specific AMBA bus driver 13 years ago
bcma_private.h b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 7 years ago
core.c 972da7ec49 bcma: update core (en|dis)abling functions 11 years ago
driver_chipcommon.c 7195439d1d Revert "bcma: init serial console directly from ChipCommon code" 7 years ago
driver_chipcommon_b.c cc2d1de06f bcma: define ChipCommon B MII registers 8 years ago
driver_chipcommon_nflash.c f5237f278f Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 11 years ago
driver_chipcommon_pflash.c d6a3b51ada bcma: move parallel flash support to separated file 8 years ago
driver_chipcommon_pmu.c b3c47afbf5 bcma: support PMU present as separated bus core 8 years ago
driver_chipcommon_sflash.c 5651d6aaf4 mtd: bcm47xxsflash: use ioremap_cache() instead of KSEG0ADDR() 8 years ago
driver_gmac_cmn.c 0f58a01ddd Drivers: bcma: remove __dev* attributes. 12 years ago
driver_gpio.c 459c35148e bcma: gpio: Correct number of GPIOs for BCM53573 7 years ago
driver_mips.c 7195439d1d Revert "bcma: init serial console directly from ChipCommon code" 7 years ago
driver_pci.c 950f6f8492 bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA 4 years ago
driver_pci_host.c 2264fc857d bcma: add missing includes 9 years ago
driver_pcie2.c 2264fc857d bcma: add missing includes 9 years ago
host_pci.c 59391a96dc bcma: add Dell Inspiron 3148 8 years ago
host_soc.c c5ed1df781 bcma: use standard bus scanning during early register 9 years ago
main.c f825f6ed20 bcma: fill core OF info independently of bus type 7 years ago
scan.c 0c06f5d43e bcma: support chipsets with PMU and GCI cores (devices) 8 years ago
scan.h b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 7 years ago
sprom.c 3c31316135 bcma: detect SPROM revision 11 9 years ago

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.