From patchwork Mon Mar 18 14:32:12 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Magnus Damm X-Patchwork-Id: 2293561 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork1.kernel.org (Postfix) with ESMTP id 5A04C3FCF6 for ; Mon, 18 Mar 2013 15:23:50 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UHbrH-0005kt-4v; Mon, 18 Mar 2013 15:20:19 +0000 Received: from mail-pb0-f52.google.com ([209.85.160.52]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UHb15-00007L-L2 for linux-arm-kernel@lists.infradead.org; Mon, 18 Mar 2013 14:26:27 +0000 Received: by mail-pb0-f52.google.com with SMTP id ma3so6475020pbc.11 for ; Mon, 18 Mar 2013 07:26:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:from:to:cc:date:message-id:in-reply-to:references :subject; bh=iGoKXagqs9Sfbjm2SmOItMcdzqZgUwowzAP1oOk0snI=; b=H/SQAp/sJ39W1XIw6NoixD9lUwu/Z8xFUzFOzZ8/MFZs2HyhQOQgLykWSIEbHl9RZP Cr+dA56gSjOACGBKMLwmR86lq9bue8D29Fm0MUCxDVRCNZb0vWl1X4HpNPiZoyS2tjJb srn4cVJJAsYA4r4068rQD7SqaQCQ72ErkMFhAencnpDdtV5N9jVZFo/FkCWqPxdep4qM R8IOKKdVnW8iH+ua+GH5TMHiiIc1E7AY8acZRc2tI4w8q3TRlDgJVe1v46lHbxYGd8cV 6qxcgjmMuESjri+i9n+D87p0IKcv+JsKjRKy3r/c6gjrLSywvNg6kRWAYAQGf+VBrSYF aqfw== X-Received: by 10.66.221.66 with SMTP id qc2mr10632547pac.10.1363616779638; Mon, 18 Mar 2013 07:26:19 -0700 (PDT) Received: from [127.0.0.1] (FLH1All083.tky.mesh.ad.jp. [211.13.49.83]) by mx.google.com with ESMTPS id gf6sm20364699pbc.24.2013.03.18.07.26.16 (version=TLSv1.2 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 18 Mar 2013 07:26:18 -0700 (PDT) From: Magnus Damm To: linux-sh@vger.kernel.org Date: Mon, 18 Mar 2013 23:32:12 +0900 Message-Id: <20130318143212.26687.55335.sendpatchset@w520> In-Reply-To: <20130318143203.26687.98180.sendpatchset@w520> References: <20130318143203.26687.98180.sendpatchset@w520> Subject: [PATCH 01/04] ARM: shmobile: Initial r8a73a4 SoC support V2 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130318_102624_147674_6681E5DE X-CRM114-Status: GOOD ( 17.36 ) X-Spam-Score: -2.7 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [209.85.160.52 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (magnus.damm[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature Cc: kuninori.morimoto.gx@renesas.com, arnd@arndb.de, Magnus Damm , horms@verge.net.au, olof@lixom.net, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Magnus Damm Add initial support for the r8a73a4 SoC including: - Single Cortex-A15 CPU Core - GIC - Architecture timer No static virtual mappings are used, all the components make use of ioremap(). DT_MACHINE_START is still wrapped in CONFIG_USE_OF to match other mach-shmobile code. Signed-off-by: Magnus Damm --- Changes since V1: - Best-effort sort of headers - Removed r8a73a4_devices[] and platform_add_devices() - Let r8a73a4_clock_init() be called directly by board code arch/arm/boot/dts/r8a73a4.dtsi | 55 +++++++++++++++ arch/arm/mach-shmobile/Kconfig | 7 + arch/arm/mach-shmobile/Makefile | 1 arch/arm/mach-shmobile/clock-r8a73a4.c | 89 +++++++++++++++++++++++++ arch/arm/mach-shmobile/include/mach/r8a73a4.h | 7 + arch/arm/mach-shmobile/setup-r8a73a4.c | 50 ++++++++++++++ 6 files changed, 209 insertions(+) --- /dev/null +++ work/arch/arm/boot/dts/r8a73a4.dtsi 2013-03-18 18:34:16.000000000 +0900 @@ -0,0 +1,55 @@ +/* + * Device Tree Source for the r8a73a4 SoC + * + * Copyright (C) 2013 Renesas Solutions Corp. + * Copyright (C) 2013 Magnus Damm + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +/include/ "skeleton.dtsi" + +/ { + compatible = "renesas,r8a73a4"; + interrupt-parent = <&gic>; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu0: cpu@0 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0>; + clock-frequency = <1500000000>; + }; + }; + + gic: interrupt-controller@f1001000 { + compatible = "arm,cortex-a15-gic"; + #interrupt-cells = <3>; + #address-cells = <0>; + interrupt-controller; + reg = <0xf1001000 0x1000>, + <0xf1002000 0x1000>, + <0xf1004000 0x2000>, + <0xf1006000 0x2000>; + interrupts = <1 9 0xf04>; + + gic-cpuif@4 { + compatible = "arm,gic-cpuif"; + cpuif-id = <4>; + cpu = <&cpu0>; + }; + }; + + timer { + compatible = "arm,armv7-timer"; + interrupts = <1 13 0xf08>, + <1 14 0xf08>, + <1 11 0xf08>, + <1 10 0xf08>; + }; +}; --- 0001/arch/arm/mach-shmobile/Kconfig +++ work/arch/arm/mach-shmobile/Kconfig 2013-03-18 18:34:15.000000000 +0900 @@ -18,6 +18,13 @@ config ARCH_SH73A0 select SH_CLK_CPG select RENESAS_INTC_IRQPIN +config ARCH_R8A73A4 + bool "R-Mobile APE6 (R8A73A40)" + select ARM_GIC + select CPU_V7 + select ARM_ARCH_TIMER + select SH_CLK_CPG + config ARCH_R8A7740 bool "R-Mobile A1 (R8A77400)" select ARCH_WANT_OPTIONAL_GPIOLIB --- 0001/arch/arm/mach-shmobile/Makefile +++ work/arch/arm/mach-shmobile/Makefile 2013-03-18 18:34:15.000000000 +0900 @@ -8,6 +8,7 @@ obj-y := timer.o console.o clock.o # CPU objects obj-$(CONFIG_ARCH_SH7372) += setup-sh7372.o clock-sh7372.o intc-sh7372.o obj-$(CONFIG_ARCH_SH73A0) += setup-sh73a0.o clock-sh73a0.o intc-sh73a0.o +obj-$(CONFIG_ARCH_R8A73A4) += setup-r8a73a4.o clock-r8a73a4.o obj-$(CONFIG_ARCH_R8A7740) += setup-r8a7740.o clock-r8a7740.o intc-r8a7740.o obj-$(CONFIG_ARCH_R8A7779) += setup-r8a7779.o clock-r8a7779.o intc-r8a7779.o obj-$(CONFIG_ARCH_EMEV2) += setup-emev2.o clock-emev2.o --- /dev/null +++ work/arch/arm/mach-shmobile/clock-r8a73a4.c 2013-03-18 18:34:16.000000000 +0900 @@ -0,0 +1,89 @@ +/* + * r8a73a4 clock framework support + * + * Copyright (C) 2013 Renesas Solutions Corp. + * Copyright (C) 2013 Magnus Damm + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include +#include +#include +#include +#include +#include + +#define CPG_BASE 0xe6150000 +#define CPG_LEN 0x270 + +#define MPCKCR 0xe6150080 + +static struct clk_mapping cpg_mapping = { + .phys = CPG_BASE, + .len = CPG_LEN, +}; + +static struct clk extalr_clk = { + .rate = 32768, +}; + +static struct clk extal1_clk = { + .rate = 26000000, +}; + +static struct clk extal2_clk = { + .rate = 48000000, + .mapping = &cpg_mapping, +}; + +static struct clk *main_clks[] = { + &extalr_clk, + &extal1_clk, + &extal2_clk, +}; + +enum { MSTP_NR }; +static struct clk mstp_clks[MSTP_NR] = { +}; + +static struct clk_lookup lookups[] = { +}; + +void __init r8a73a4_clock_init(void) +{ + void __iomem *cpg_base, *reg; + int k, ret = 0; + + /* fix MPCLK to EXTAL2 for now. + * this is needed until more detailed clock topology is supported + */ + cpg_base = ioremap_nocache(CPG_BASE, CPG_LEN); + BUG_ON(!cpg_base); + reg = cpg_base + (MPCKCR - CPG_BASE); + iowrite32(ioread32(reg) | 1 << 7 | 0x0c, reg); /* set CKSEL */ + iounmap(cpg_base); + + for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++) + ret = clk_register(main_clks[k]); + + if (!ret) + ret = sh_clk_mstp_register(mstp_clks, MSTP_NR); + + clkdev_add_table(lookups, ARRAY_SIZE(lookups)); + + if (!ret) + shmobile_clk_init(); + else + panic("failed to setup r8a73a4 clocks\n"); +} --- /dev/null +++ work/arch/arm/mach-shmobile/include/mach/r8a73a4.h 2013-03-18 18:34:16.000000000 +0900 @@ -0,0 +1,7 @@ +#ifndef __ASM_R8A73A4_H__ +#define __ASM_R8A73A4_H__ + +void r8a73a4_add_standard_devices(void); +void r8a73a4_clock_init(void); + +#endif /* __ASM_R8A73A4_H__ */ --- /dev/null +++ work/arch/arm/mach-shmobile/setup-r8a73a4.c 2013-03-18 21:41:35.000000000 +0900 @@ -0,0 +1,50 @@ +/* + * r8a73a4 processor support + * + * Copyright (C) 2013 Renesas Solutions Corp. + * Copyright (C) 2013 Magnus Damm + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include +#include +#include +#include +#include +#include +#include +#include + +void __init r8a73a4_add_standard_devices(void) +{ +} + +#ifdef CONFIG_USE_OF +void __init r8a73a4_add_standard_devices_dt(void) +{ + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); +} + +static const char *r8a73a4_boards_compat_dt[] __initdata = { + "renesas,r8a73a4", + NULL, +}; + +DT_MACHINE_START(R8A73A4_DT, "Generic R8A73A4 (Flattened Device Tree)") + .init_irq = irqchip_init, + .init_machine = r8a73a4_add_standard_devices_dt, + .init_time = shmobile_timer_init, + .dt_compat = r8a73a4_boards_compat_dt, +MACHINE_END +#endif /* CONFIG_USE_OF */