diff options
Diffstat (limited to 'Bindings/spi/spi_atmel.txt')
| -rw-r--r-- | Bindings/spi/spi_atmel.txt | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Bindings/spi/spi_atmel.txt b/Bindings/spi/spi_atmel.txt index 4f8184d069cb..fb588b3e6a9a 100644 --- a/Bindings/spi/spi_atmel.txt +++ b/Bindings/spi/spi_atmel.txt @@ -4,11 +4,16 @@ Required properties: - compatible : should be "atmel,at91rm9200-spi". - reg: Address and length of the register set for the device - interrupts: Should contain spi interrupt -- cs-gpios: chipselects +- cs-gpios: chipselects (optional for SPI controller version >= 2 with the + Chip Select Active After Transfer feature). - clock-names: tuple listing input clock names. Required elements: "spi_clk" - clocks: phandles to input clocks. +Optional properties: +- atmel,fifo-size: maximum number of data the RX and TX FIFOs can store for FIFO + capable SPI controllers. + Example: spi1: spi@fffcc000 { @@ -20,6 +25,7 @@ spi1: spi@fffcc000 { clocks = <&spi1_clk>; clock-names = "spi_clk"; cs-gpios = <&pioB 3 0>; + atmel,fifo-size = <32>; status = "okay"; mmc-slot@0 { |