diff options
Diffstat (limited to 'dts/Bindings/spi/ti_qspi.txt')
| -rw-r--r-- | dts/Bindings/spi/ti_qspi.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/dts/Bindings/spi/ti_qspi.txt b/dts/Bindings/spi/ti_qspi.txt index cc8304aa64..50b14f6b53 100644 --- a/dts/Bindings/spi/ti_qspi.txt +++ b/dts/Bindings/spi/ti_qspi.txt @@ -19,6 +19,13 @@ Optional properties: - syscon-chipselects: Handle to system control region contains QSPI chipselect register and offset of that register. +NOTE: TI QSPI controller requires different pinmux and IODelay +paramaters for Mode-0 and Mode-3 operations, which needs to be set up by +the bootloader (U-Boot). Default configuration only supports Mode-0 +operation. Hence, "spi-cpol" and "spi-cpha" DT properties cannot be +specified in the slave nodes of TI QSPI controller without appropriate +modification to bootloader. + Example: For am4372: |