Rafał Miłecki 371a00448f bcma: detect and register NAND flash device 13 anos atrás
..
Kconfig 371a00448f bcma: detect and register NAND flash device 13 anos atrás
Makefile 23cb3b2121 bcma: add place for flash memory support 13 anos atrás
README 8369ae33b7 bcma: add Broadcom specific AMBA bus driver 14 anos atrás
TODO 8369ae33b7 bcma: add Broadcom specific AMBA bus driver 14 anos atrás
bcma_private.h 371a00448f bcma: detect and register NAND flash device 13 anos atrás
core.c 3d9d8af330 bcma: use custom printing functions 13 anos atrás
driver_chipcommon.c 9a89c3a856 bcma: fix CC driver compilation on MIPS 13 anos atrás
driver_chipcommon_nflash.c 371a00448f bcma: detect and register NAND flash device 13 anos atrás
driver_chipcommon_pmu.c 94f3457f4d bcma: make some functions static 13 anos atrás
driver_chipcommon_sflash.c d57ef3a6a2 bcma: detect and register serial flash device 13 anos atrás
driver_gmac_cmn.c e1ac4b4090 bcma: add trivial GBIT MAC COMMON driver 13 anos atrás
driver_mips.c d8f1bd2ffc bcma: fix regression in interrupt assignment on mips 13 anos atrás
driver_pci.c e7027075d0 bcma: fix null pointer in bcma_core_pci_irq_ctl 13 anos atrás
driver_pci_host.c 3d9d8af330 bcma: use custom printing functions 13 anos atrás
host_pci.c 94f3457f4d bcma: make some functions static 13 anos atrás
host_soc.c 94f3457f4d bcma: make some functions static 13 anos atrás
main.c 371a00448f bcma: detect and register NAND flash device 13 anos atrás
scan.c 9dbf5f55f8 bcma: add missing iounmap on error path 13 anos atrás
scan.h 97cfda8fec bcma: fix typo - reading number of slave wrappers 13 anos atrás
sprom.c 3d9d8af330 bcma: use custom printing functions 13 anos atrás

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.