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| author |   Lars-Peter Clausen <lars@metafoo.de> | 2020-09-22 15:46:24 +0200 |
|---|---|---|
| committer |   Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-01-09 14:25:24 +0000 |
| commit | c2b7720a7905bb8aa3a9decbf135fec98faba38d (patch) | |
| tree | 893e3774e1fcfd5d5c050ec7820ca81cdd4d4992 /drivers/iio/adc/Kconfig | |
| parent | dt-bindings:iio:xilinx-xadc: Add Xilinx System Management Wizard binding docs (diff) | |
| download | linux-dev-c2b7720a7905bb8aa3a9decbf135fec98faba38d.tar.xz linux-dev-c2b7720a7905bb8aa3a9decbf135fec98faba38d.zip | |
iio: xilinx-xadc: Add basic support for Ultrascale System Monitor
The xilinx-xadc IIO driver currently has support for the XADC in the Xilinx
7 series FPGAs. The system-monitor is the equivalent to the XADC in the
Xilinx UltraScale and UltraScale+ FPGAs.
The IP designers did a good job at maintaining backwards compatibility and
only minor changes are required to add basic support for the system-monitor
core.
The non backwards compatible changes are:
* Register map offset was moved from 0x200 to 0x400
* Only one ADC compared to two in the XADC
* 10 bit ADC instead of 12 bit ADC
* Two of the channels monitor different supplies
Add the necessary logic to accommodate these changes to support the
system-monitor in the XADC driver.
Note that this patch does not include support for some new features found
in the system-monitor like additional alarms, user supply monitoring and
secondary system-monitor access. This might be added at a later time.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Tested-by: Anand Ashok Dumbre <anandash@xilinx.com>
Reviewed-by: Anand Ashok Dumbre <anandash@xilinx.com>
Link: https://lore.kernel.org/r/20200922134624.13191-2-lars@metafoo.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/adc/Kconfig')
| -rw-r--r-- | drivers/iio/adc/Kconfig | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index 15587a1bc80d..bf7d22fa4be2 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -1228,8 +1228,15 @@ config XILINX_XADC select IIO_BUFFER select IIO_TRIGGERED_BUFFER help - Say yes here to have support for the Xilinx XADC. The driver does support - both the ZYNQ interface to the XADC as well as the AXI-XADC interface. + Say yes here to have support for the Xilinx 7 Series XADC or + UltraScale/UltraScale+ System Management Wizard. + + For the 7 Series the driver does support both the ZYNQ interface + to the XADC as well as the AXI-XADC interface. + + The driver also support the Xilinx System Management Wizard IP core + that can be used to access the System Monitor ADC on the Xilinx + UltraScale and UltraScale+ FPGAs. The driver can also be build as a module. If so, the module will be called xilinx-xadc. |