forked from Minki/linux
73569a5095
Add support for RZ/A2 Signed-off-by: Chris Brandt <chris.brandt@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
72 lines
2.6 KiB
Plaintext
72 lines
2.6 KiB
Plaintext
Device tree configuration for Renesas RSPI/QSPI driver
|
|
|
|
Required properties:
|
|
- compatible : For Renesas Serial Peripheral Interface on legacy SH:
|
|
"renesas,rspi-<soctype>", "renesas,rspi" as fallback.
|
|
For Renesas Serial Peripheral Interface on RZ/A:
|
|
"renesas,rspi-<soctype>", "renesas,rspi-rz" as fallback.
|
|
For Quad Serial Peripheral Interface on R-Car Gen2 and
|
|
RZ/G1 devices:
|
|
"renesas,qspi-<soctype>", "renesas,qspi" as fallback.
|
|
Examples with soctypes are:
|
|
- "renesas,rspi-sh7757" (SH)
|
|
- "renesas,rspi-r7s72100" (RZ/A1H)
|
|
- "renesas,rspi-r7s9210" (RZ/A2)
|
|
- "renesas,qspi-r8a7743" (RZ/G1M)
|
|
- "renesas,qspi-r8a7745" (RZ/G1E)
|
|
- "renesas,qspi-r8a7790" (R-Car H2)
|
|
- "renesas,qspi-r8a7791" (R-Car M2-W)
|
|
- "renesas,qspi-r8a7792" (R-Car V2H)
|
|
- "renesas,qspi-r8a7793" (R-Car M2-N)
|
|
- "renesas,qspi-r8a7794" (R-Car E2)
|
|
- reg : Address start and address range size of the device
|
|
- interrupts : A list of interrupt-specifiers, one for each entry in
|
|
interrupt-names.
|
|
If interrupt-names is not present, an interrupt specifier
|
|
for a single muxed interrupt.
|
|
- interrupt-names : A list of interrupt names. Should contain (if present):
|
|
- "error" for SPEI,
|
|
- "rx" for SPRI,
|
|
- "tx" to SPTI,
|
|
- "mux" for a single muxed interrupt.
|
|
- num-cs : Number of chip selects. Some RSPI cores have more than 1.
|
|
- #address-cells : Must be <1>
|
|
- #size-cells : Must be <0>
|
|
|
|
Optional properties:
|
|
- clocks : Must contain a reference to the functional clock.
|
|
- dmas : Must contain a list of two references to DMA specifiers,
|
|
one for transmission, and one for reception.
|
|
- dma-names : Must contain a list of two DMA names, "tx" and "rx".
|
|
|
|
Pinctrl properties might be needed, too. See
|
|
Documentation/devicetree/bindings/pinctrl/renesas,*.
|
|
|
|
Examples:
|
|
|
|
spi0: spi@e800c800 {
|
|
compatible = "renesas,rspi-r7s72100", "renesas,rspi-rz";
|
|
reg = <0xe800c800 0x24>;
|
|
interrupts = <0 238 IRQ_TYPE_LEVEL_HIGH>,
|
|
<0 239 IRQ_TYPE_LEVEL_HIGH>,
|
|
<0 240 IRQ_TYPE_LEVEL_HIGH>;
|
|
interrupt-names = "error", "rx", "tx";
|
|
interrupt-parent = <&gic>;
|
|
num-cs = <1>;
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
};
|
|
|
|
spi: spi@e6b10000 {
|
|
compatible = "renesas,qspi-r8a7791", "renesas,qspi";
|
|
reg = <0 0xe6b10000 0 0x2c>;
|
|
interrupt-parent = <&gic>;
|
|
interrupts = <0 184 IRQ_TYPE_LEVEL_HIGH>;
|
|
clocks = <&mstp9_clks R8A7791_CLK_QSPI_MOD>;
|
|
num-cs = <1>;
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
dmas = <&dmac0 0x17>, <&dmac0 0x18>;
|
|
dma-names = "tx", "rx";
|
|
};
|