From patchwork Thu Mar 21 10:01:36 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuninori Morimoto X-Patchwork-Id: 2311871 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id D5267DF264 for ; Thu, 21 Mar 2013 10:04:47 +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 1UIcJd-0002dD-TM; Thu, 21 Mar 2013 10:01:45 +0000 Received: from mail-pb0-f43.google.com ([209.85.160.43]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UIcJW-0002ae-JS for linux-arm-kernel@lists.infradead.org; Thu, 21 Mar 2013 10:01:42 +0000 Received: by mail-pb0-f43.google.com with SMTP id md12so2139488pbc.16 for ; Thu, 21 Mar 2013 03:01:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:date:sender:message-id:from:to:cc:in-reply-to:references :from:subject:mime-version:content-type; bh=yS2BNVPEkrqgITNSuuTX1x0zUGBVp6+X2UkmBEHC69Y=; b=iC7bAgNBALv7lGFp4QqttGbh2DyrqbwWZBZ9lkmQ3ufbaQr3s+dfQBF1hwE0mnZi00 fi8XiQGhjQrboAslsmoiehyUYzmbqCFCcq/rv3eVkg7V7cMUEYfMUuwXeFYc+7XVjK5C XlGv3TlgGTWTI5d0A002wGM2FYkT2tjrY3AMhEidz4QHQal5awdHSPvlS/KdtS6DMWUG 2X01RUP2v/cY+twXLvUSgl9H5ZajoozLxHBDrM//YQk+LNXE2ibZaAqiVPKv5ZYrdh8/ yxvVuzhE382VKHH1ryiickhFVA8/So+MTaMqRV6mNfLoKsK8uXwhVhTR/wVeZJeMCRkN Fmyw== X-Received: by 10.66.179.238 with SMTP id dj14mr14299418pac.68.1363860097303; Thu, 21 Mar 2013 03:01:37 -0700 (PDT) Received: from morimoto-Dell-XPS420.gmail.com (49.14.32.202.bf.2iij.net. [202.32.14.49]) by mx.google.com with ESMTPS id kt5sm5550959pbc.30.2013.03.21.03.01.34 (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Thu, 21 Mar 2013 03:01:36 -0700 (PDT) Date: Thu, 21 Mar 2013 03:01:36 -0700 (PDT) Message-ID: <877gl1f4w4.wl%kuninori.morimoto.gx@renesas.com> From: Kuninori Morimoto To: Paul , Simon , Magnus , arnd@arndb.de In-Reply-To: <878v5hf4zr.wl%kuninori.morimoto.gx@renesas.com> References: <87hakhrpmn.wl%kuninori.morimoto.gx@renesas.com> <878v5hf4zr.wl%kuninori.morimoto.gx@renesas.com> From: Kuninori Morimoto Subject: [PATCH 1/3 v3] ARM: shmobile: add R8A7778 basis support MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130321_060138_792801_9E5F7A1E X-CRM114-Status: GOOD ( 25.47 ) X-Spam-Score: -2.6 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [209.85.160.43 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (kuninori.morimoto.gx[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_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 , linux-arm-kernel@lists.infradead.org, linux-sh@vger.kernel.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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Add initial support for the R8A7778 R-Car M1A SoC. 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. It is based on v1.0 datasheet Signed-off-by: Kuninori Morimoto --- v2 -> v3 - it used platform_device_register_full() - removed r8a7778_clock_init() from setup-r8a7778.c - cleanup code arch/arm/boot/dts/r8a7778.dtsi | 35 ++++++ arch/arm/mach-shmobile/Kconfig | 6 + arch/arm/mach-shmobile/Makefile | 1 + arch/arm/mach-shmobile/clock-r8a7778.c | 91 ++++++++++++++ arch/arm/mach-shmobile/include/mach/r8a7778.h | 28 +++++ arch/arm/mach-shmobile/setup-r8a7778.c | 167 +++++++++++++++++++++++++ 6 files changed, 328 insertions(+) create mode 100644 arch/arm/boot/dts/r8a7778.dtsi create mode 100644 arch/arm/mach-shmobile/clock-r8a7778.c create mode 100644 arch/arm/mach-shmobile/include/mach/r8a7778.h create mode 100644 arch/arm/mach-shmobile/setup-r8a7778.c diff --git a/arch/arm/boot/dts/r8a7778.dtsi b/arch/arm/boot/dts/r8a7778.dtsi new file mode 100644 index 0000000..4743735 --- /dev/null +++ b/arch/arm/boot/dts/r8a7778.dtsi @@ -0,0 +1,35 @@ +/* + * Device Tree Source for Renesas r8a7778 + * + * Copyright (C) 2013 Renesas Solutions Corp. + * Copyright (C) 2013 Kuninori Morimoto + * + * based on r8a7779 + * + * Copyright (C) 2013 Renesas Solutions Corp. + * Copyright (C) 2013 Simon Horman + * + * 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,r8a7778"; + + cpus { + cpu@0 { + compatible = "arm,cortex-a9"; + }; + }; + + gic: interrupt-controller@fe438000 { + compatible = "arm,cortex-a9-gic"; + #interrupt-cells = <3>; + interrupt-controller; + reg = <0xfe438000 0x1000>, + <0xfe430000 0x100>; + }; +}; diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig index eb3a7ff..aa273a5 100644 --- a/arch/arm/mach-shmobile/Kconfig +++ b/arch/arm/mach-shmobile/Kconfig @@ -24,6 +24,12 @@ config ARCH_R8A7740 select CPU_V7 select SH_CLK_CPG +config ARCH_R8A7778 + bool "R-Car M1 (R8A77780)" + select CPU_V7 + select SH_CLK_CPG + select ARM_GIC + config ARCH_R8A7779 bool "R-Car H1 (R8A77790)" select ARCH_WANT_OPTIONAL_GPIOLIB diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile index c621edf..0f50a3c 100644 --- a/arch/arm/mach-shmobile/Makefile +++ b/arch/arm/mach-shmobile/Makefile @@ -9,6 +9,7 @@ obj-y := timer.o console.o clock.o 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-$(CONFIG_ARCH_R8A7740) += setup-r8a7740.o clock-r8a7740.o intc-r8a7740.o +obj-$(CONFIG_ARCH_R8A7778) += setup-r8a7778.o clock-r8a7778.o obj-$(CONFIG_ARCH_R8A7779) += setup-r8a7779.o clock-r8a7779.o intc-r8a7779.o obj-$(CONFIG_ARCH_EMEV2) += setup-emev2.o clock-emev2.o diff --git a/arch/arm/mach-shmobile/clock-r8a7778.c b/arch/arm/mach-shmobile/clock-r8a7778.c new file mode 100644 index 0000000..387e3b7 --- /dev/null +++ b/arch/arm/mach-shmobile/clock-r8a7778.c @@ -0,0 +1,91 @@ +/* + * r8a7778 clock framework support + * + * Copyright (C) 2013 Renesas Solutions Corp. + * Copyright (C) 2013 Kuninori Morimoto + * + * based on r8a7779 + * + * Copyright (C) 2011 Renesas Solutions Corp. + * Copyright (C) 2011 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; either 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include +#include +#include +#include + +#define MSTPCR0 IOMEM(0xffc80030) +#define MSTPCR1 IOMEM(0xffc80034) +#define MSTPCR3 IOMEM(0xffc8003c) +#define MSTPSR1 IOMEM(0xffc80044) +#define MSTPSR4 IOMEM(0xffc80048) +#define MSTPSR6 IOMEM(0xffc8004c) +#define MSTPCR4 IOMEM(0xffc80050) +#define MSTPCR5 IOMEM(0xffc80054) +#define MSTPCR6 IOMEM(0xffc80058) + +/* ioremap() through clock mapping mandatory to avoid + * collision with ARM coherent DMA virtual memory range. + */ + +static struct clk_mapping cpg_mapping = { + .phys = 0xffc80000, + .len = 0x80, +}; + +static struct clk clkp = { + .rate = 62500000, /* FIXME: shortcut */ + .flags = CLK_ENABLE_ON_INIT, + .mapping = &cpg_mapping, +}; + +static struct clk *main_clks[] = { + &clkp, +}; + +enum { + MSTP016, MSTP015, + MSTP_NR }; + +static struct clk mstp_clks[MSTP_NR] = { + [MSTP016] = SH_CLK_MSTP32(&clkp, MSTPCR0, 16, 0), /* TMU0 */ + [MSTP015] = SH_CLK_MSTP32(&clkp, MSTPCR0, 15, 0), /* TMU1 */ +}; + +static struct clk_lookup lookups[] = { + /* MSTP32 clocks */ + CLKDEV_DEV_ID("sh_tmu.0", &mstp_clks[MSTP016]), /* TMU00 */ + CLKDEV_DEV_ID("sh_tmu.1", &mstp_clks[MSTP015]), /* TMU01 */ +}; + +void __init r8a7778_clock_init(void) +{ + int k, ret = 0; + + 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 r8a7778 clocks\n"); +} diff --git a/arch/arm/mach-shmobile/include/mach/r8a7778.h b/arch/arm/mach-shmobile/include/mach/r8a7778.h new file mode 100644 index 0000000..a755dca --- /dev/null +++ b/arch/arm/mach-shmobile/include/mach/r8a7778.h @@ -0,0 +1,28 @@ +/* + * Copyright (C) 2013 Renesas Solutions Corp. + * Copyright (C) 2013 Kuninori Morimoto + * + * 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 + */ +#ifndef __ASM_R8A7778_H__ +#define __ASM_R8A7778_H__ + +extern void r8a7778_add_standard_devices(void); +extern void r8a7778_add_standard_devices_dt(void); +extern void r8a7778_init_delay(void); +extern void r8a7778_init_irq(void); +extern void r8a7778_init_irq_dt(void); +extern void r8a7778_clock_init(void); + +#endif /* __ASM_R8A7778_H__ */ diff --git a/arch/arm/mach-shmobile/setup-r8a7778.c b/arch/arm/mach-shmobile/setup-r8a7778.c new file mode 100644 index 0000000..811ccf3 --- /dev/null +++ b/arch/arm/mach-shmobile/setup-r8a7778.c @@ -0,0 +1,167 @@ +/* + * r8a7778 processor support + * + * Copyright (C) 2013 Renesas Solutions Corp. + * Copyright (C) 2013 Kuninori Morimoto + * + * 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 +#include +#include +#include +#include +#include + +/* TMU */ +static struct resource sh_tmu0_resources[] = { + DEFINE_RES_MEM(0xffd80008, 12), + DEFINE_RES_IRQ(gic_iid(0x40)), +}; + +static struct sh_timer_config sh_tmu0_platform_data = { + .name = "TMU00", + .channel_offset = 0x4, + .timer_bit = 0, + .clockevent_rating = 200, +}; + +static struct resource sh_tmu1_resources[] = { + DEFINE_RES_MEM(0xffd80014, 12), + DEFINE_RES_IRQ(gic_iid(0x41)), +}; + +static struct sh_timer_config sh_tmu1_platform_data = { + .name = "TMU01", + .channel_offset = 0x10, + .timer_bit = 1, + .clocksource_rating = 200, +}; + +#define PLATFORM_INFO(n, i) \ +{ \ + .parent = &platform_bus, \ + .name = #n, \ + .id = i, \ + .res = n ## i ## _resources, \ + .num_res = ARRAY_SIZE(n ## i ##_resources), \ + .data = &n ## i ##_platform_data, \ + .size_data = sizeof(n ## i ## _platform_data), \ +} + +struct platform_device_info platform_devinfo[] = { + PLATFORM_INFO(sh_tmu, 0), + PLATFORM_INFO(sh_tmu, 1), +}; + +void __init r8a7778_add_standard_devices(void) +{ + int i; + +#ifdef CONFIG_CACHE_L2X0 + void __iomem *base = ioremap_nocache(0xf0100000, 0x1000); + if (base) { + /* + * Early BRESP enable, Shared attribute override enable, 64K*16way + * don't call iounmap(base) + */ + l2x0_init(base, 0x40470000, 0x82000fff); + } +#endif + + for (i = 0; i < ARRAY_SIZE(platform_devinfo); i++) + platform_device_register_full(&platform_devinfo[i]); +} + +#define INT2SMSKCR0 0x82288 /* 0xfe782288 */ +#define INT2SMSKCR1 0x8228c /* 0xfe78228c */ + +#define INT2NTSR0 0x00018 /* 0xfe700018 */ +#define INT2NTSR1 0x0002c /* 0xfe70002c */ +static void __init r8a7778_init_irq_common(void) +{ + void __iomem *base = ioremap_nocache(0xfe700000, 0x00100000); + + BUG_ON(!base); + + /* route all interrupts to ARM */ + __raw_writel(0x73ffffff, base + INT2NTSR0); + __raw_writel(0xffffffff, base + INT2NTSR1); + + /* unmask all known interrupts in INTCS2 */ + __raw_writel(0x08330773, base + INT2SMSKCR0); + __raw_writel(0x00311110, base + INT2SMSKCR1); + + iounmap(base); +} + +void __init r8a7778_init_irq(void) +{ + void __iomem *gic_dist_base; + void __iomem *gic_cpu_base; + + gic_dist_base = ioremap_nocache(0xfe438000, PAGE_SIZE); + gic_cpu_base = ioremap_nocache(0xfe430000, PAGE_SIZE); + BUG_ON(!gic_dist_base || !gic_cpu_base); + + /* use GIC to handle interrupts */ + gic_init(0, 29, gic_dist_base, gic_cpu_base); + + r8a7778_init_irq_common(); +} + +void __init r8a7778_init_delay(void) +{ + shmobile_setup_delay(800, 1, 3); /* Cortex-A9 @ 800MHz */ +} + +#ifdef CONFIG_USE_OF +void __init r8a7778_init_irq_dt(void) +{ + irqchip_init(); + r8a7778_init_irq_common(); +} + +static const struct of_dev_auxdata r8a7778_auxdata_lookup[] __initconst = { + {}, +}; + +void __init r8a7778_add_standard_devices_dt(void) +{ + of_platform_populate(NULL, of_default_bus_match_table, + r8a7778_auxdata_lookup, NULL); +} + +static const char *r8a7778_compat_dt[] __initdata = { + "renesas,r8a7778", + NULL, +}; + +DT_MACHINE_START(R8A7778_DT, "Generic R8A7778 (Flattened Device Tree)") + .init_early = r8a7778_init_delay, + .init_irq = r8a7778_init_irq_dt, + .init_machine = r8a7778_add_standard_devices_dt, + .init_time = shmobile_timer_init, + .dt_compat = r8a7778_compat_dt, +MACHINE_END + +#endif /* CONFIG_USE_OF */