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| author | Ernesto Corona <ernesto.corona@intel.com> | 2020-09-29 18:23:21 +0300 |
|---|---|---|
| committer | Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> | 2021-11-05 10:22:07 +0300 |
| commit | 1223c4de89fbfbade4a44416e77c0a4c75b31e65 (patch) | |
| tree | b547ea88053fdf265341f5796ae429d6d28a0246 /Documentation/devicetree | |
| parent | 78bd897348ce5389c7fa208527aafc0b5b5e3492 (diff) | |
| download | linux-1223c4de89fbfbade4a44416e77c0a4c75b31e65.tar.xz | |
dt-binding: jtag: Aspeed 24/25/2600 series
Aspeed AST2400, AST2500 and AST2600 JTAG master controller driver.
Signed-off-by: Oleksandr Shamray <oleksandrs@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ernesto Corona <ernesto.corona@intel.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Eric Biggers <ebiggers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Joel Stanley <joel@jms.id.au>
Cc: Andrew Jeffery <andrew@aj.id.au>
Cc: Steven Filary <steven.a.filary@intel.com>
Cc: Vadim Pasternak <vadimp@mellanox.com>
Cc: Amithash Prasad <amithash@fb.com>
Cc: Patrick Williams <patrickw3@fb.com>
Cc: Rgrs <rgrs@protonmail.com>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/jtag/aspeed-jtag.yaml | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/jtag/aspeed-jtag.yaml b/Documentation/devicetree/bindings/jtag/aspeed-jtag.yaml new file mode 100644 index 000000000000..26faec29a5fb --- /dev/null +++ b/Documentation/devicetree/bindings/jtag/aspeed-jtag.yaml @@ -0,0 +1,85 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/jtag/aspeed-jtag.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Aspeed JTAG driver for ast2400, ast2500 and ast2600 SoC + +description: + Driver adds support of Aspeed 24/25/2600 series SOC JTAG master controller. + Driver implements the following jtag ops + freq_get + freq_set + status_get + status_set + xfer + mode_set + bitbang + enable + disable + + It has been tested on Mellanox system with BMC equipped with + Aspeed 2520 SoC for programming CPLD devices. + + It has also been tested on Intel system using Aspeed 25xx SoC + for JTAG communication. + + Tested on Intel system using Aspeed 26xx SoC for JTAG communication. + +maintainers: + - Oleksandr Shamray <oleksandrs@mellanox.com> + - Jiri Pirko <jiri@mellanox.com> + - Ernesto Corona<ernesto.corona@intel.com> + +properties: + compatible: + oneOf: + - items: + - enum: + - aspeed,ast2400-jtag + - aspeed,ast2500-jtag + - aspeed,ast2600-jtag + + + reg: + items: + - description: JTAG Master controller register range + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + +required: + - compatible + - reg + - interrupts + - clocks + +examples: + - | + #include <dt-bindings/clock/aspeed-clock.h> + #include <dt-bindings/interrupt-controller/irq.h> + + jtag: jtag@1e6e4000 { + compatible = "aspeed,ast2500-jtag"; + reg = <0x1e6e4000 0x1c>; + clocks = <&syscon ASPEED_CLK_APB>; + resets = <&syscon ASPEED_RESET_JTAG_MASTER>; + interrupts = <43>; + }; + - | + #include <dt-bindings/clock/aspeed-clock.h> + #include <dt-bindings/interrupt-controller/irq.h> + + jtag1: jtag@1e6e4100 { + compatible = "aspeed,ast2600-jtag"; + reg = <0x1e6e4100 0x40>; + clocks = <&syscon ASPEED_CLK_APB1>; + resets = <&syscon ASPEED_RESET_JTAG_MASTER2>; + interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>; + }; + +... |