diff options
Diffstat (limited to 'Documentation')
3 files changed, 21 insertions, 6 deletions
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/mpc5121-psc.txt b/Documentation/devicetree/bindings/powerpc/fsl/mpc5121-psc.txt index 8832e87..6478175 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/mpc5121-psc.txt +++ b/Documentation/devicetree/bindings/powerpc/fsl/mpc5121-psc.txt @@ -6,14 +6,14 @@ PSC in UART mode For PSC in UART mode the needed PSC serial devices are specified by fsl,mpc5121-psc-uart nodes in the fsl,mpc5121-immr SoC node. Additionally the PSC FIFO -Controller node fsl,mpc5121-psc-fifo is requered there: +Controller node fsl,mpc5121-psc-fifo is required there: -fsl,mpc5121-psc-uart nodes +fsl,mpc512x-psc-uart nodes -------------------------- Required properties : - - compatible : Should contain "fsl,mpc5121-psc-uart" and "fsl,mpc5121-psc" - - cell-index : Index of the PSC in hardware + - compatible : Should contain "fsl,<soc>-psc-uart" and "fsl,<soc>-psc" + Supported <soc>s: mpc5121, mpc5125 - reg : Offset and length of the register set for the PSC device - interrupts : <a b> where a is the interrupt number of the PSC FIFO Controller and b is a field that represents an @@ -25,12 +25,21 @@ Recommended properties : - fsl,rx-fifo-size : the size of the RX fifo slice (a multiple of 4) - fsl,tx-fifo-size : the size of the TX fifo slice (a multiple of 4) +PSC in SPI mode +--------------- -fsl,mpc5121-psc-fifo node +Similar to the UART mode a PSC can be operated in SPI mode. The compatible used +for that is fsl,mpc5121-psc-spi. It requires a fsl,mpc5121-psc-fifo as well. +The required and recommended properties are identical to the +fsl,mpc5121-psc-uart nodes, just use spi instead of uart in the compatible +string. + +fsl,mpc512x-psc-fifo node ------------------------- Required properties : - - compatible : Should be "fsl,mpc5121-psc-fifo" + - compatible : Should be "fsl,<soc>-psc-fifo" + Supported <soc>s: mpc5121, mpc5125 - reg : Offset and length of the register set for the PSC FIFO Controller - interrupts : <a b> where a is the interrupt number of the @@ -39,6 +48,9 @@ Required properties : - interrupt-parent : the phandle for the interrupt controller that services interrupts for this device. +Recommended properties : + - clocks : specifies the clock needed to operate the fifo controller + - clock-names : name(s) for the clock(s) listed in clocks Example for a board using PSC0 and PSC1 devices in serial mode: diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.txt b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.txt index bd99193..204b311 100644 --- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.txt +++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.txt @@ -10,6 +10,8 @@ Required properties: Optional properties: - cs-gpios : Specifies the gpio pis to be used for chipselects. - num-cs : The number of chipselects. If omitted, this will default to 4. +- reg-io-width : The I/O register width (in bytes) implemented by this + device. Supported values are 2 or 4 (the default). Child nodes as per the generic SPI binding. diff --git a/Documentation/devicetree/bindings/spi/spi-img-spfi.txt b/Documentation/devicetree/bindings/spi/spi-img-spfi.txt index e02fbf1..494db60 100644 --- a/Documentation/devicetree/bindings/spi/spi-img-spfi.txt +++ b/Documentation/devicetree/bindings/spi/spi-img-spfi.txt @@ -21,6 +21,7 @@ Required properties: Optional properties: - img,supports-quad-mode: Should be set if the interface supports quad mode SPI transfers. +- spfi-max-frequency: Maximum speed supported by the spfi block. Example: |