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authorCédric Le Goater <clg@kaod.org>2022-05-09 20:56:07 +0300
committerMark Brown <broonie@kernel.org>2022-05-16 14:59:09 +0300
commitce9858ea499da025684a7a5f19823c2c3f14bdce (patch)
tree5bccc496280fa15fee1229f3ae79cc05ee86fffe /Documentation/devicetree/bindings/mtd
parent22d35e40419a2ac0914fb6b05c8781c9af8d4126 (diff)
downloadlinux-ce9858ea499da025684a7a5f19823c2c3f14bdce.tar.xz
spi: Convert the Aspeed SMC controllers device tree binding
The "interrupt" property is optional because it is only necessary for controllers supporting DMAs (Not implemented yet in the new driver). Cc: Chin-Ting Kuo <chin-ting_kuo@aspeedtech.com> Tested-by: Joel Stanley <joel@jms.id.au> Tested-by: Tao Ren <rentao.bupt@gmail.com> Tested-by: Jae Hyun Yoo <quic_jaehyoo@quicinc.com> Reviewed-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Cédric Le Goater <clg@kaod.org> Link: https://lore.kernel.org/r/20220509175616.1089346-3-clg@kaod.org Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/mtd')
-rw-r--r--Documentation/devicetree/bindings/mtd/aspeed-smc.txt51
1 files changed, 0 insertions, 51 deletions
diff --git a/Documentation/devicetree/bindings/mtd/aspeed-smc.txt b/Documentation/devicetree/bindings/mtd/aspeed-smc.txt
deleted file mode 100644
index 49f6528ef547..000000000000
--- a/Documentation/devicetree/bindings/mtd/aspeed-smc.txt
+++ /dev/null
@@ -1,51 +0,0 @@
-* Aspeed Firmware Memory controller
-* Aspeed SPI Flash Memory Controller
-
-The Firmware Memory Controller in the Aspeed AST2500 SoC supports
-three chip selects, two of which are always of SPI type and the third
-can be SPI or NOR type flash. These bindings only describe SPI.
-
-The two SPI flash memory controllers in the AST2500 each support two
-chip selects.
-
-Required properties:
- - compatible : Should be one of
- "aspeed,ast2400-fmc" for the AST2400 Firmware Memory Controller
- "aspeed,ast2400-spi" for the AST2400 SPI Flash memory Controller
- "aspeed,ast2500-fmc" for the AST2500 Firmware Memory Controller
- "aspeed,ast2500-spi" for the AST2500 SPI flash memory controllers
-
- - reg : the first contains the control register location and length,
- the second contains the memory window mapping address and length
- - #address-cells : must be 1 corresponding to chip select child binding
- - #size-cells : must be 0 corresponding to chip select child binding
-
-Optional properties:
- - interrupts : Should contain the interrupt for the dma device if an
- FMC
-
-The child nodes are the SPI flash modules which must have a compatible
-property as specified in bindings/mtd/jedec,spi-nor.txt
-
-Optionally, the child node can contain properties for SPI mode (may be
-ignored):
- - spi-max-frequency - max frequency of spi bus
-
-
-Example:
-fmc: fmc@1e620000 {
- compatible = "aspeed,ast2500-fmc";
- reg = < 0x1e620000 0x94
- 0x20000000 0x02000000 >;
- #address-cells = <1>;
- #size-cells = <0>;
- interrupts = <19>;
- flash@0 {
- reg = < 0 >;
- compatible = "jedec,spi-nor";
- /* spi-max-frequency = <>; */
- /* m25p,fast-read; */
- #address-cells = <1>;
- #size-cells = <1>;
- };
-};