From: "Cédric Le Goater" <clg@kaod.org>
To: linux-spi@vger.kernel.org, linux-mtd@lists.infradead.org
Cc: "Mark Brown" <broonie@kernel.org>,
"Tudor Ambarus" <tudor.ambarus@microchip.com>,
"Pratyush Yadav" <p.yadav@ti.com>,
"Miquel Raynal" <miquel.raynal@bootlin.com>,
"Richard Weinberger" <richard@nod.at>,
"Vignesh Raghavendra" <vigneshr@ti.com>,
linux-aspeed@lists.ozlabs.org, "Joel Stanley" <joel@jms.id.au>,
"Andrew Jeffery" <andrew@aj.id.au>,
"Chin-Ting Kuo" <chin-ting_kuo@aspeedtech.com>,
devicetree@vger.kernel.org, "Rob Herring" <robh+dt@kernel.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, "Cédric Le Goater" <clg@kaod.org>,
"Tao Ren" <rentao.bupt@gmail.com>,
"Jae Hyun Yoo" <quic_jaehyoo@quicinc.com>,
"Rob Herring" <robh@kernel.org>
Subject: [PATCH v7 02/11] dt-bindings: spi: Convert the Aspeed SMC controllers device tree binding
Date: Mon, 9 May 2022 19:56:07 +0200 [thread overview]
Message-ID: <20220509175616.1089346-3-clg@kaod.org> (raw)
In-Reply-To: <20220509175616.1089346-1-clg@kaod.org>
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>
---
.../devicetree/bindings/mtd/aspeed-smc.txt | 51 ------------
.../bindings/spi/aspeed,ast2600-fmc.yaml | 82 +++++++++++++++++++
MAINTAINERS | 9 ++
3 files changed, 91 insertions(+), 51 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/mtd/aspeed-smc.txt
create mode 100644 Documentation/devicetree/bindings/spi/aspeed,ast2600-fmc.yaml
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>;
- };
-};
diff --git a/Documentation/devicetree/bindings/spi/aspeed,ast2600-fmc.yaml b/Documentation/devicetree/bindings/spi/aspeed,ast2600-fmc.yaml
new file mode 100644
index 000000000000..fa8f4ac20985
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/aspeed,ast2600-fmc.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/aspeed,ast2600-fmc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Aspeed SMC controllers bindings
+
+maintainers:
+ - Chin-Ting Kuo <chin-ting_kuo@aspeedtech.com>
+ - Cédric Le Goater <clg@kaod.org>
+
+description: |
+ This binding describes the Aspeed Static Memory Controllers (FMC and
+ SPI) of the AST2400, AST2500 and AST2600 SOCs.
+
+allOf:
+ - $ref: "spi-controller.yaml#"
+
+properties:
+ compatible:
+ enum:
+ - aspeed,ast2600-fmc
+ - aspeed,ast2600-spi
+ - aspeed,ast2500-fmc
+ - aspeed,ast2500-spi
+ - aspeed,ast2400-fmc
+ - aspeed,ast2400-spi
+
+ reg:
+ items:
+ - description: registers
+ - description: memory mapping
+
+ clocks:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/aspeed-scu-ic.h>
+ #include <dt-bindings/clock/ast2600-clock.h>
+
+ spi@1e620000 {
+ reg = <0x1e620000 0xc4>, <0x20000000 0x10000000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "aspeed,ast2600-fmc";
+ clocks = <&syscon ASPEED_CLK_AHB>;
+ interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+
+ flash@0 {
+ reg = < 0 >;
+ compatible = "jedec,spi-nor";
+ spi-max-frequency = <50000000>;
+ spi-rx-bus-width = <2>;
+ };
+
+ flash@1 {
+ reg = < 1 >;
+ compatible = "jedec,spi-nor";
+ spi-max-frequency = <50000000>;
+ spi-rx-bus-width = <2>;
+ };
+
+ flash@2 {
+ reg = < 2 >;
+ compatible = "jedec,spi-nor";
+ spi-max-frequency = <50000000>;
+ spi-rx-bus-width = <2>;
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 9d47c5e7c6ae..149e84d32293 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3101,6 +3101,15 @@ S: Maintained
F: Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml
F: drivers/mmc/host/sdhci-of-aspeed*
+ASPEED SMC SPI DRIVER
+M: Chin-Ting Kuo <chin-ting_kuo@aspeedtech.com>
+M: Cédric Le Goater <clg@kaod.org>
+L: linux-aspeed@lists.ozlabs.org (moderated for non-subscribers)
+L: openbmc@lists.ozlabs.org (moderated for non-subscribers)
+L: linux-spi@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/spi/aspeed,ast2600-fmc.yaml
+
ASPEED VIDEO ENGINE DRIVER
M: Eddie James <eajames@linux.ibm.com>
L: linux-media@vger.kernel.org
--
2.35.1
next prev parent reply other threads:[~2022-05-09 17:56 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-09 17:56 [PATCH v7 00/11] spi: spi-mem: Convert Aspeed SMC driver to spi-mem Cédric Le Goater
2022-05-09 17:56 ` [PATCH v7 01/11] ARM: dts: aspeed: Adjust "reg" property of FMC/SPI controllers Cédric Le Goater
2022-05-09 17:56 ` Cédric Le Goater [this message]
2022-05-09 17:56 ` [PATCH v7 03/11] spi: spi-mem: Convert Aspeed SMC driver to spi-mem Cédric Le Goater
2022-05-09 17:56 ` [PATCH v7 04/11] spi: aspeed: Add support for direct mapping Cédric Le Goater
2022-05-09 17:56 ` [PATCH v7 05/11] spi: aspeed: Adjust direct mapping to device size Cédric Le Goater
2022-05-09 17:56 ` [PATCH v7 06/11] spi: aspeed: Workaround AST2500 limitations Cédric Le Goater
2022-05-09 17:56 ` [PATCH v7 07/11] spi: aspeed: Add support for the AST2400 SPI controller Cédric Le Goater
2022-05-09 17:56 ` [PATCH v7 08/11] spi: aspeed: Calibrate read timings Cédric Le Goater
2022-05-09 17:56 ` [PATCH v7 09/11] ARM: dts: aspeed: Enable Dual SPI RX transfers Cédric Le Goater
2022-05-09 17:56 ` [PATCH v7 10/11] ARM: dts: aspeed-g4: Set spi-max-frequency for all flashes Cédric Le Goater
2022-05-09 17:56 ` [PATCH v7 11/11] mtd: spi-nor: aspeed: set the decoding size to at least 2MB for AST2600 Cédric Le Goater
2022-05-16 18:39 ` (subset) [PATCH v7 00/11] spi: spi-mem: Convert Aspeed SMC driver to spi-mem Mark Brown
2022-05-17 11:05 ` Pratyush Yadav
2022-05-17 12:03 ` Cédric Le Goater
2022-05-17 12:33 ` Pratyush Yadav
2022-05-17 12:37 ` Miquel Raynal
2022-05-17 13:41 ` Cédric Le Goater
2022-05-17 12:10 ` Mark Brown
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