From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-3695236-1518513171-2-3088750936743399287 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, FREEMAIL_FROM 0.001, RCVD_IN_DNSWL_NONE -0.0001, RCVD_IN_MSPIKE_H3 -0.01, RCVD_IN_MSPIKE_WL -0.01, SPF_PASS -0.001, LANGUAGES unknown, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.85.160.66', Host='mail-pl0-f66.google.com', Country='US', FromHeader='com', MailFrom='com' X-Spam-charsets: X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: green.hu@gmail.com ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1518513171; b=mxRTr+HRUPYGEmWKT9OkitzBXSQC5KkF5pf+pgOv7qmeL7R /UdVprq/5ckVUcmiB10A1IVJlzdQjqX1X85xFrXkfFEtpRqAvw+rU45lIWMLQZoH 8EjbGFfVzz+LsgeMqO0aWbKhaxSRWaq0HIJDMBGdg1U9GsMumQxVHqF3YDns54WZ H8yG3IbIRRrFRKYb0juYa+Z27molHbKGWrlXyX055geTNboNqkLUaj04qlgDw3tE tMkd0vd2MAV7ouKcQz08kfH89PtLe7HWnN2f7w03SouoiCUWjoFSpyypPQagz1V+ zUQvxp8l0g+uuWH6vTbAEMX7KcdHVcoDKy5GC8w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:in-reply-to:references; s=arctest; t= 1518513171; bh=TdAszDI1EBEEdDcAeh9sUJlASfMTp5o/PuyITYit3nw=; b=I i+A/zuStyLy6/LmXifR6mDCfzyGyKrO/c8Y8lpl7zGaUkYNOt3IKGJqRdTu77dtB MZrWY/2GUG0T652xj+CQojCAsjN1umfLx2L/4bk72JB68TeYcI2Jm6JKeL0A/jlR TF+8z4w/wzeNtjYSy16x3WIf8qKjAyDub13eAF9dgJYmcdE9ThLCJGW4Jf80wqxQ 3WwnhToHZllo2yDl6UAs/GJZiVISqB1BERcDHwMQ0Np9NxOuC0s8SiCd5NW9p1Qx WbBkvZNwgdtbth6N3m79EoLcL1dazx2noJ3IqEtSeTcqmryEyiJUkPX2ao4eskHn 5GB77WgFDiAnxkbAeZWtw== ARC-Authentication-Results: i=1; mx2.messagingengine.com; arc=none (no signatures found); dkim=pass (2048-bit rsa key sha256) header.d=gmail.com header.i=@gmail.com header.b=OLmi/Gnr x-bits=2048 x-keytype=rsa x-algorithm=sha256 x-selector=20161025; dmarc=pass (p=none,d=none) header.from=gmail.com; iprev=pass policy.iprev=209.85.160.66 (mail-pl0-f66.google.com); spf=pass smtp.mailfrom=green.hu@gmail.com smtp.helo=mail-pl0-f66.google.com; x-aligned-from=pass; x-google-dkim=pass (2048-bit rsa key) header.d=1e100.net header.i=@1e100.net header.b=bfKvuWiS; x-ptr=pass x-ptr-helo=mail-pl0-f66.google.com x-ptr-lookup=mail-pl0-f66.google.com; x-return-mx=pass smtp.domain=gmail.com smtp.result=pass smtp_is_org_domain=yes header.domain=gmail.com header.result=pass header_is_org_domain=yes; x-tls=pass version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128 Authentication-Results: mx2.messagingengine.com; arc=none (no signatures found); dkim=pass (2048-bit rsa key sha256) header.d=gmail.com header.i=@gmail.com header.b=OLmi/Gnr x-bits=2048 x-keytype=rsa x-algorithm=sha256 x-selector=20161025; dmarc=pass (p=none,d=none) header.from=gmail.com; iprev=pass policy.iprev=209.85.160.66 (mail-pl0-f66.google.com); spf=pass smtp.mailfrom=green.hu@gmail.com smtp.helo=mail-pl0-f66.google.com; x-aligned-from=pass; x-google-dkim=pass (2048-bit rsa key) header.d=1e100.net header.i=@1e100.net header.b=bfKvuWiS; x-ptr=pass x-ptr-helo=mail-pl0-f66.google.com x-ptr-lookup=mail-pl0-f66.google.com; x-return-mx=pass smtp.domain=gmail.com smtp.result=pass smtp_is_org_domain=yes header.domain=gmail.com header.result=pass header_is_org_domain=yes; x-tls=pass version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128 X-Google-Smtp-Source: AH8x225EwwWLntg8c94e5oV1ik9AruKfs4Pmhq/Nff2A8e54Lcn8rdh0GlPWScai2o1n1wkw9BjBBw== From: Greentime Hu X-Google-Original-From: Greentime Hu To: greentime@andestech.com, linux-kernel@vger.kernel.org, arnd@arndb.de, linux-arch@vger.kernel.org, tglx@linutronix.de, jason@lakedaemon.net, marc.zyngier@arm.com, robh+dt@kernel.org, netdev@vger.kernel.org, deanbo422@gmail.com, devicetree@vger.kernel.org, viro@zeniv.linux.org.uk, dhowells@redhat.com, will.deacon@arm.com, daniel.lezcano@linaro.org, linux-serial@vger.kernel.org, geert.uytterhoeven@gmail.com, linus.walleij@linaro.org, mark.rutland@arm.com, greg@kroah.com, ren_guo@c-sky.com, rdunlap@infradead.org, davem@davemloft.net, jonas@southpole.se, stefan.kristiansson@saunalahti.fi, shorne@gmail.com Cc: green.hu@gmail.com, Vincent Chen Subject: [PATCH v7 27/37] nds32: Device tree support Date: Tue, 13 Feb 2018 17:09:31 +0800 Message-Id: X-Mailer: git-send-email 2.16.1 In-Reply-To: References: In-Reply-To: References: X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: This patch adds support for device tree. Signed-off-by: Vincent Chen Signed-off-by: Greentime Hu Acked-by: Arnd Bergmann --- arch/nds32/boot/dts/Makefile | 8 ++++ arch/nds32/boot/dts/ae3xx.dts | 85 +++++++++++++++++++++++++++++++++++++++++++ arch/nds32/kernel/devtree.c | 19 ++++++++++ 3 files changed, 112 insertions(+) create mode 100644 arch/nds32/boot/dts/Makefile create mode 100644 arch/nds32/boot/dts/ae3xx.dts create mode 100644 arch/nds32/kernel/devtree.c diff --git a/arch/nds32/boot/dts/Makefile b/arch/nds32/boot/dts/Makefile new file mode 100644 index 000000000000..d31faa8a1d50 --- /dev/null +++ b/arch/nds32/boot/dts/Makefile @@ -0,0 +1,8 @@ +ifneq '$(CONFIG_NDS32_BUILTIN_DTB)' '""' +BUILTIN_DTB := $(patsubst "%",%,$(CONFIG_NDS32_BUILTIN_DTB)).dtb.o +else +BUILTIN_DTB := +endif +obj-$(CONFIG_OF) += $(BUILTIN_DTB) + +clean-files := *.dtb *.dtb.S diff --git a/arch/nds32/boot/dts/ae3xx.dts b/arch/nds32/boot/dts/ae3xx.dts new file mode 100644 index 000000000000..bb39749a6673 --- /dev/null +++ b/arch/nds32/boot/dts/ae3xx.dts @@ -0,0 +1,85 @@ +/dts-v1/; +/ { + compatible = "andestech,ae3xx"; + #address-cells = <1>; + #size-cells = <1>; + interrupt-parent = <&intc>; + + chosen { + stdout-path = &serial0; + }; + + memory@0 { + device_type = "memory"; + reg = <0x00000000 0x40000000>; + }; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + cpu@0 { + device_type = "cpu"; + compatible = "andestech,n13", "andestech,nds32v3"; + reg = <0>; + clock-frequency = <60000000>; + next-level-cache = <&L2>; + }; + }; + + intc: interrupt-controller { + compatible = "andestech,ativic32"; + #interrupt-cells = <1>; + interrupt-controller; + }; + + clock: clk { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <30000000>; + }; + + apb { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges; + + serial0: serial@f0300000 { + compatible = "andestech,uart16550", "ns16550a"; + reg = <0xf0300000 0x1000>; + interrupts = <8>; + clock-frequency = <14745600>; + reg-shift = <2>; + reg-offset = <32>; + no-loopback-test = <1>; + }; + + timer0: timer@f0400000 { + compatible = "andestech,atcpit100"; + reg = <0xf0400000 0x1000>; + interrupts = <2>; + clocks = <&clock>; + clock-names = "PCLK"; + }; + }; + + ahb { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges; + + L2: cache-controller@e0500000 { + compatible = "andestech,atl2c"; + reg = <0xe0500000 0x1000>; + cache-unified; + cache-level = <2>; + }; + + mac0: ethernet@e0100000 { + compatible = "andestech,atmac100"; + reg = <0xe0100000 0x1000>; + interrupts = <18>; + }; + }; +}; diff --git a/arch/nds32/kernel/devtree.c b/arch/nds32/kernel/devtree.c new file mode 100644 index 000000000000..bdce0fe5af9f --- /dev/null +++ b/arch/nds32/kernel/devtree.c @@ -0,0 +1,19 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2005-2017 Andes Technology Corporation + +#include +#include +#include + +void __init early_init_devtree(void *params) +{ + if (!params || !early_init_dt_scan(params)) { + pr_crit("\n" + "Error: invalid device tree blob at (virtual address 0x%p)\n" + "\nPlease check your bootloader.", params); + + BUG_ON(1); + } + + dump_stack_set_arch_desc("%s (DT)", of_flat_dt_get_machine_name()); +} -- 2.16.1