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linux-next/drivers/hwtracing
Suzuki K Poulose ff11f5bc5a coresight tmc etr: Detect address width at runtime
TMC in Coresight SoC-600 advertises the AXI address width
in the device configuration register.

Bit 16 - AXIAW_VALID
 0 - AXI Address Width not valid
 1 - Valid AXI Address width in Bits[23-17]

Bits [23-17] - AXIAW. If AXIAW_VALID = b01 then
 0x20 - 32bit AXI address bus
 0x28 - 40bit AXI address bus
 0x2c - 44bit AXI address bus
 0x30 - 48bit AXI address bus
 0x34 - 52bit AXI address bus

Use the address bits from the device configuration register, if
available. Otherwise, default to 40bit.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-28 16:05:49 +02:00
..
coresight coresight tmc etr: Detect address width at runtime 2017-08-28 16:05:49 +02:00
intel_th hwtracing: intel_th: use dev_groups and not dev_attrs for bus_type 2017-06-09 11:00:46 +02:00
stm This release has a few updates: 2016-12-15 13:49:34 -08:00