diff options
| author | Angelo Dureghello <angelo@sysam.it> | 2019-03-13 21:46:41 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-05-23 23:14:38 -0400 |
| commit | b5867b1a7a4c45c6a5a6a97f866dd180631ebf2b (patch) | |
| tree | 4949699a268aad5c2b143bf296d47084c0354e08 /doc | |
| parent | 40920bdecc4e1b7096de6f546d7b5c2185554ba6 (diff) | |
m68k: add basic set of devicetrees
This patch adds a basic group of devicetrees, one for each
cpu family, including actually just uart and dspi devices,
since these are the drivers supporting devicetree (support
added in this patch-set).
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Angelo Dureghello <angelo@sysam.it>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/device-tree-bindings/serial/mcf-uart.txt | 19 | ||||
| -rw-r--r-- | doc/device-tree-bindings/spi/spi-mcf-dspi.txt | 30 |
2 files changed, 49 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/serial/mcf-uart.txt b/doc/device-tree-bindings/serial/mcf-uart.txt new file mode 100644 index 0000000000..d73f764c01 --- /dev/null +++ b/doc/device-tree-bindings/serial/mcf-uart.txt @@ -0,0 +1,19 @@ +Freescale ColdFire UART + +Required properties: +- compatible : should be "fsl,mcf-uart" +- reg: start address and size of the registers + +Example: + +soc { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + + uart0: uart@fc060000 { + compatible = "fsl,mcf-uart"; + reg = <0xfc060000 0x40>; + status = "disabled"; + }; +}; diff --git a/doc/device-tree-bindings/spi/spi-mcf-dspi.txt b/doc/device-tree-bindings/spi/spi-mcf-dspi.txt new file mode 100644 index 0000000000..860eb8ac85 --- /dev/null +++ b/doc/device-tree-bindings/spi/spi-mcf-dspi.txt @@ -0,0 +1,30 @@ +Freescale ColdFire DSPI controller + +Required properties: +- compatible : "fsl,mcf-dspi" +- #address-cells: <1>, as required by generic SPI binding +- #size-cells: <0>, also as required by generic SPI binding +- reg : offset and length of the register set for the device + +Optional properties: +- spi-max-frequency : max supported spi frequency +- num-cs : the number of the chipselect signals +- spi-mode: spi motorola mode, 0 to 3 +- ctar-params: CTAR0 to 7 register configuration, as an array + of 8 integer fields for each register, where each register + is defined as: <fmsz, pcssck, pasc, pdt, cssck, asc, dt, br>. + +Example: + +dspi0: dspi@fc05c000 { + compatible = "fsl,mcf-dspi"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0xfc05c000 0x100>; + spi-max-frequency = <50000000>; + num-cs = <4>; + spi-mode = <0>; + ctar-fields = <7, 0, 0, 0, 0, 0, 1, 6>, + <7, 0, 0, 0, 0, 0, 1, 6>, + <7, 0, 0, 0, 0, 0, 1, 6>; +}; |