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| author | Serge Semin <Sergey.Semin@baikalelectronics.ru> | 2020-05-26 14:59:27 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2020-05-28 14:16:29 +0200 |
| commit | 8f93662d8324940e8925a0e492c587dbcf7c7fee (patch) | |
| tree | 31e754944e1ed577dd8d5efaeb3e37b6050c868d /drivers/bus/Makefile | |
| parent | bus: Add Baikal-T1 AXI-bus driver (diff) | |
| download | linux-8f93662d8324940e8925a0e492c587dbcf7c7fee.tar.xz linux-8f93662d8324940e8925a0e492c587dbcf7c7fee.zip | |
bus: Add Baikal-T1 APB-bus driver
Baikal-T1 AXI-APB bridge is used to access the SoC subsystem CSRs.
IO requests are routed to this bus by means of the DW AMBA 3 AXI
Interconnect. In case if an attempted APB transaction stays with no
response for a pre-defined time an interrupt occurs and the bus gets
freed for a next operation. This driver provides the interrupt handler
to detect the erroneous address, prints an error message about the
address fault, updates an errors counter. The counter and the APB-bus
operations timeout can be accessed via corresponding sysfs nodes.
A dedicated sysfs-node can be also used to artificially cause the
bus errors described above.
[arnd: fix build warnings for missing includes and wrong return types]
Link: https://lore.kernel.org/r/20200526125928.17096-6-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Paul Burton <paulburton@kernel.org>
Cc: Olof Johansson <olof@lixom.net>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: soc@kernel.org
Cc: devicetree@vger.kernel.org
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/bus/Makefile')
| -rw-r--r-- | drivers/bus/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile index eaa25d171ebd..08ccbfaf7705 100644 --- a/drivers/bus/Makefile +++ b/drivers/bus/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_MOXTET) += moxtet.o # DPAA2 fsl-mc bus obj-$(CONFIG_FSL_MC_BUS) += fsl-mc/ +obj-$(CONFIG_BT1_APB) += bt1-apb.o obj-$(CONFIG_BT1_AXI) += bt1-axi.o obj-$(CONFIG_IMX_WEIM) += imx-weim.o obj-$(CONFIG_MIPS_CDMM) += mips_cdmm.o |