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| author | Vineet Gupta <vgupta@synopsys.com> | 2013-01-18 15:12:21 +0530 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2013-02-15 23:15:57 +0530 |
| commit | abe11ddea1d759f9995a9a4636c28c9b40856ca8 (patch) | |
| tree | 53085d131ecbe7a810f9feadcba571f49a2e9465 /arch/arc/boot | |
| parent | 450dd430bf45ab212a91acfb9bed2528d17f30cd (diff) | |
| download | linux-abe11ddea1d759f9995a9a4636c28c9b40856ca8.tar.gz linux-abe11ddea1d759f9995a9a4636c28c9b40856ca8.tar.bz2 linux-abe11ddea1d759f9995a9a4636c28c9b40856ca8.zip | |
ARC: [plat-arcfpga]: Enabling DeviceTree for Angel4 board
* arc-uart platform device now populated dynamically, using
of_platform_populate() - applies to any other device whatsoever.
* uart in turn requires incore arc-intc to be also present in DT
* A irq-domain needs to be instantiated for IRQ requests by DT probed
device (e.g. arc-uart)
TODO: switch over to linear irq domain once all devs have been
transitioned to DT
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arc/boot')
| -rw-r--r-- | arch/arc/boot/dts/Makefile | 2 | ||||
| -rw-r--r-- | arch/arc/boot/dts/angel4.dts | 55 | ||||
| -rw-r--r-- | arch/arc/boot/dts/skeleton.dtsi | 12 |
3 files changed, 68 insertions, 1 deletions
diff --git a/arch/arc/boot/dts/Makefile b/arch/arc/boot/dts/Makefile index 17dc7b8b05fa..5776835d583f 100644 --- a/arch/arc/boot/dts/Makefile +++ b/arch/arc/boot/dts/Makefile @@ -1,5 +1,5 @@ # Built-in dtb -builtindtb-y := skeleton +builtindtb-y := angel4 ifneq ($(CONFIG_ARC_BUILTIN_DTB_NAME),"") builtindtb-y := $(patsubst "%",%,$(CONFIG_ARC_BUILTIN_DTB_NAME)) diff --git a/arch/arc/boot/dts/angel4.dts b/arch/arc/boot/dts/angel4.dts new file mode 100644 index 000000000000..4c188d5bc10c --- /dev/null +++ b/arch/arc/boot/dts/angel4.dts @@ -0,0 +1,55 @@ +/* + * Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +/dts-v1/; + +/include/ "skeleton.dtsi" + +/ { + compatible = "snps,arc-angel4"; + clock-frequency = <80000000>; /* 80 MHZ */ + #address-cells = <1>; + #size-cells = <1>; + interrupt-parent = <&intc>; + + chosen { + bootargs = "console=ttyARC0,115200n8"; + }; + + aliases { + serial0 = &arcuart0; + }; + + memory { + device_type = "memory"; + reg = <0x00000000 0x10000000>; /* 256M */ + }; + + fpga { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + + /* child and parent address space 1:1 mapped */ + ranges; + + intc: interrupt-controller { + compatible = "snps,arc700-intc"; + interrupt-controller; + #interrupt-cells = <1>; + }; + + arcuart0: serial@c0fc1000 { + compatible = "snps,arc-uart"; + reg = <0xc0fc1000 0x100>; + interrupts = <5>; + clock-frequency = <80000000>; + baud = <115200>; + status = "okay"; + }; + }; +}; diff --git a/arch/arc/boot/dts/skeleton.dtsi b/arch/arc/boot/dts/skeleton.dtsi index eb8b77367352..a870bdd5e404 100644 --- a/arch/arc/boot/dts/skeleton.dtsi +++ b/arch/arc/boot/dts/skeleton.dtsi @@ -18,6 +18,18 @@ #size-cells = <1>; chosen { }; aliases { }; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu@0 { + device_type = "cpu"; + compatible = "snps,arc770d"; + reg = <0>; + }; + }; + memory { device_type = "memory"; reg = <0x00000000 0x10000000>; /* 256M */ |