WSL2-Linux-Kernel/drivers/bcma
Jiapeng Chong fa84df7052 bcma: remove unused function
Fix the following clang warning:

drivers/bcma/driver_mips.c:55:20: warning: unused function
'mips_write32' [-Wunused-function].

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1618382354-866-1-git-send-email-jiapeng.chong@linux.alibaba.com
2021-04-18 09:36:56 +03:00
..
Kconfig
Makefile
README
TODO
bcma_private.h
core.c
driver_chipcommon.c
driver_chipcommon_b.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
driver_chipcommon_nflash.c
driver_chipcommon_pflash.c
driver_chipcommon_pmu.c bcma: fix block comment style 2019-10-24 08:45:31 +03:00
driver_chipcommon_sflash.c
driver_gmac_cmn.c
driver_gpio.c bcma: gpio: Use irqchip template 2020-08-02 18:26:51 +03:00
driver_mips.c bcma: remove unused function 2021-04-18 09:36:56 +03:00
driver_pci.c bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA 2019-09-03 16:44:02 +03:00
driver_pci_host.c bcma: use semicolons rather than commas to separate statements 2020-10-01 16:23:50 +03:00
driver_pcie2.c
host_pci.c
host_soc.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
main.c
scan.c drivers: bcma: remove set but not used variable `addrh` and `sizeh` 2020-08-02 18:26:18 +03:00
scan.h
sprom.c bcma: make arrays pwr_info_offset and sprom_sizes static const, shrinks object size 2019-09-13 16:44:49 +03:00

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.