diff options
Diffstat (limited to 'meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0054-Documentation-jtag-Add-bindings-for-Aspeed-SoC.patch')
| -rw-r--r-- | meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0054-Documentation-jtag-Add-bindings-for-Aspeed-SoC.patch | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0054-Documentation-jtag-Add-bindings-for-Aspeed-SoC.patch b/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0054-Documentation-jtag-Add-bindings-for-Aspeed-SoC.patch new file mode 100644 index 000000000..f17bdcd68 --- /dev/null +++ b/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0054-Documentation-jtag-Add-bindings-for-Aspeed-SoC.patch @@ -0,0 +1,108 @@ +From 2a22feac440070b7feaf0a6fe7e7e555d57ca19b Mon Sep 17 00:00:00 2001 +From: "Corona, Ernesto" <ernesto.corona@intel.com> +Date: Wed, 10 Mar 2019 11:45:04 -0800 +Subject: [PATCH v29 3/6] Documentation: jtag: Add bindings for Aspeed SoC + 24xx and 25xx families JTAG master driver + +It has been tested on Mellanox system with BMC equipped with +Aspeed 2520 SoC for programming CPLD devices. + +It also has been tested on Intel systems with BMC equipped with +Aspeed 25x0 SoC for JTAG board communication. + +Signed-off-by: Oleksandr Shamray <oleksandrs@mellanox.com> +Signed-off-by: Jiri Pirko <jiri@mellanox.com> +Signed-off-by: Corona, Ernesto <ernesto.corona@intel.com> +Acked-by: Rob Herring <robh@kernel.org> +Cc: Mark Rutland <mark.rutland@arm.com> +Cc: Joel Stanley <joel@jms.id.au> +Cc: Andrew Jeffery <andrew@aj.id.au> +Cc: Steven A Filary <steven.a.filary@intel.com> +Cc: Bryan Hunt <bryan.hunt@intel.com> +--- +v28->v29 +v27->v28 +v26->v27 +v25->v26 +v24->v25 +v23->v24 +v22->v23 +v21->v22 +v20->v21 +v19->v20 +v18->v19 + +v17->v18 +v16->v17 +v15->v16 +Comments pointed by Joel Stanley <joel.stan@gmail.com> +- change clocks = <&clk_apb> to proper clocks = <&syscon ASPEED_CLK_APB> +- add reset descriptions in bindings file + +v14->v15 +v13->v14 +v12->v13 +v11->v12 +v10->v11 +v9->v10 +v8->v9 +v7->v8 +Comments pointed by pointed by Joel Stanley <joel.stan@gmail.com> +- Change compatible string to ast2400 and ast2000 + +V6->v7 +Comments pointed by Tobias Klauser <tklauser@distanz.ch> + - Fix spell "Doccumentation" -> "Documentation" + +v5->v6 +Comments pointed by Tobias Klauser <tklauser@distanz.ch> +- Small nit: s/documentation/Documentation/ + +v4->v5 + +V3->v4 +Comments pointed by Rob Herring <robh@kernel.org> +- delete unnecessary "status" and "reg-shift" descriptions in + bindings file + +v2->v3 +Comments pointed by Rob Herring <robh@kernel.org> +- split Aspeed jtag driver and binding to separate patches +- delete unnecessary "status" and "reg-shift" descriptions in + bindings file +--- + .../devicetree/bindings/jtag/aspeed-jtag.txt | 22 ++++++++++++++++++++++ + 1 file changed, 22 insertions(+) + create mode 100644 Documentation/devicetree/bindings/jtag/aspeed-jtag.txt + +diff --git a/Documentation/devicetree/bindings/jtag/aspeed-jtag.txt b/Documentation/devicetree/bindings/jtag/aspeed-jtag.txt +new file mode 100644 +index 0000000..7c36eb6 +--- /dev/null ++++ b/Documentation/devicetree/bindings/jtag/aspeed-jtag.txt +@@ -0,0 +1,22 @@ ++Aspeed JTAG driver for ast2400 and ast2500 SoC ++ ++Required properties: ++- compatible: Should be one of ++ - "aspeed,ast2400-jtag" ++ - "aspeed,ast2500-jtag" ++- reg contains the offset and length of the JTAG memory ++ region ++- clocks root clock of bus, should reference the APB ++ clock in the second cell ++- resets phandle to reset controller with the reset number in ++ the second cell ++- interrupts should contain JTAG controller interrupt ++ ++Example: ++jtag: jtag@1e6e4000 { ++ compatible = "aspeed,ast2500-jtag"; ++ reg = <0x1e6e4000 0x1c>; ++ clocks = <&syscon ASPEED_CLK_APB>; ++ resets = <&syscon ASPEED_RESET_JTAG_MASTER>; ++ interrupts = <43>; ++}; +-- +2.7.4 + |