mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
Raziel K. Crowe
8b701010de
|
2 years ago | |
|---|---|---|
| .. | ||
| Kconfig | 3 years ago | |
| Makefile | 3 years ago | |
| README | 3 years ago | |
| TODO | 3 years ago | |
| bcma_private.h | 3 years ago | |
| core.c | 3 years ago | |
| driver_chipcommon.c | 2 years ago | |
| driver_chipcommon_b.c | 3 years ago | |
| driver_chipcommon_nflash.c | 2 years ago | |
| driver_chipcommon_pflash.c | 3 years ago | |
| driver_chipcommon_pmu.c | 2 years ago | |
| driver_chipcommon_sflash.c | 3 years ago | |
| driver_gmac_cmn.c | 3 years ago | |
| driver_gpio.c | 2 years ago | |
| driver_mips.c | 3 years ago | |
| driver_pci.c | 3 years ago | |
| driver_pci_host.c | 2 years ago | |
| driver_pcie2.c | 3 years ago | |
| host_pci.c | 3 years ago | |
| host_soc.c | 3 years ago | |
| main.c | 2 years ago | |
| scan.c | 3 years ago | |
| scan.h | 3 years ago | |
| sprom.c | 2 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.