8369ae33 - bcma: add Broadcom specific AMBA bus driver

Mon, 09 May 2011 16:56:46 +0000

bcma: add Broadcom specific AMBA bus driverBroadcom has released cards based on a new AMBA-based bus type. From aprogramming point of view, this new bus type differs from AMBA and doesnot use AMBA common registers. It also differs enough from SSB. Wedecided that a new bus driver is needed to keep the code clean.In its current form, the driver detects devices present on the bus andregisters them in the system. It allows registering BCMA drivers forspecified bus devices and provides them basic operations. The bus driveritself includes two important bus managing drivers: ChipCommon coredriver and PCI(c) core driver. They are early used to allow correctinitialization.Currently code is limited to supporting buses on PCI(e) devices, howeverthe driver is designed to be used also on other hosts. The hostabstraction layer is implemented and already used for PCI(e).Support for PCI(e) hosts is working and seems to be stable (access to80211 core was tested successfully on a few devices). We can stilloptimize it by using some fixed windows, but this can be done laterwithout affecting any external code. Windows are just ranges in MMIOused for accessing cores on the bus.Cc: Greg KH Cc: Michael Büsch Cc: Larry Finger Cc: George Kashperko Cc: Arend van Spriel Cc: linux-arm-kernel@lists.infradead.orgCc: Russell King Cc: Arnd Bergmann Cc: Andy Botting Cc: linuxdriverproject Cc: linux-kernel@vger.kernel.org Signed-off-by: Rafał Miłecki Signed-off-by: John W. Linville List of files: /linux-6.15/drivers/bcma/README

Changes in README

8369ae33 - bcma: add Broadcom specific AMBA bus driver