From patchwork Thu Jan 31 01:50:50 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Horman X-Patchwork-Id: 2070511 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 2B4EFDF2A1 for ; Thu, 31 Jan 2013 01:54:06 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1U0jJn-0003oY-QN; Thu, 31 Jan 2013 01:51:59 +0000 Received: from kirsty.vergenet.net ([202.4.237.240]) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1U0jIx-0003Zn-NS for linux-arm-kernel@lists.infradead.org; Thu, 31 Jan 2013 01:51:11 +0000 Received: from ayumi.akashicho.tokyo.vergenet.net (p8120-ipbfp1001kobeminato.hyogo.ocn.ne.jp [118.10.137.120]) by kirsty.vergenet.net (Postfix) with ESMTP id 954EF25C022; Thu, 31 Jan 2013 12:51:03 +1100 (EST) Received: by ayumi.akashicho.tokyo.vergenet.net (Postfix, from userid 7100) id 36C14EDEA5F; Thu, 31 Jan 2013 10:51:02 +0900 (JST) From: Simon Horman To: linux-sh@vger.kernel.org Subject: [PATCH 3/4] ARM: mach-shmobile: r8a7779: Minimal setup using DT Date: Thu, 31 Jan 2013 10:50:50 +0900 Message-Id: <1359597051-32700-4-git-send-email-horms+renesas@verge.net.au> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1359597051-32700-1-git-send-email-horms+renesas@verge.net.au> References: <1359597051-32700-1-git-send-email-horms+renesas@verge.net.au> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130130_205108_419903_BD63C144 X-CRM114-Status: GOOD ( 17.39 ) X-Spam-Score: -3.3 (---) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-3.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [202.4.237.240 listed in list.dnswl.org] -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Simon Horman , Magnus Damm , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Allow a minimal setup of the r8a7779 SoC using a flattened device tree. In particular, configure the i2c and ethernet controllers using a flattened device tree. SCI serial controller and TMU clock source, whose drivers do not yet support configuration using a flattened device tree, are still configured using C code in order to allow booting of a board with this SoC. The ethernet controller also requires a regulator which is a board property. A sample snippet DT for the marzen board is as follows: /dts-v1/; /include/ "r8a7779.dtsi" / { fixedregulator3v3: fixedregulator@0 { compatible = "regulator-fixed"; regulator-name = "fixed-3.3V"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; regulator-boot-on; regulator-always-on; }; }; &lan0 { vddvario-supply = <&fixedregulator3v3>; vdd33a-supply = <&fixedregulator3v3>; }; Signed-off-by: Simon Horman --- arch/arm/boot/dts/r8a7779.dtsi | 45 ++++++++++++++++++++ arch/arm/mach-shmobile/include/mach/common.h | 2 + arch/arm/mach-shmobile/setup-r8a7779.c | 58 +++++++++++++++++++++++--- 3 files changed, 99 insertions(+), 6 deletions(-) diff --git a/arch/arm/boot/dts/r8a7779.dtsi b/arch/arm/boot/dts/r8a7779.dtsi index eadc12e..9564040 100644 --- a/arch/arm/boot/dts/r8a7779.dtsi +++ b/arch/arm/boot/dts/r8a7779.dtsi @@ -37,4 +37,49 @@ reg = <0xf0001000 0x1000>, <0xf0000100 0x100>; }; + + i2c0: i2c@0xffc70000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "renesas,rmobile-iic"; + reg = <0xffc70000 0x1000>; + interrupt-parent = <&gic>; + interrupts = <0 79 0x4>; + }; + + i2c1: i2c@0xffc71000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "renesas,rmobile-iic"; + reg = <0xffc71000 0x1000>; + interrupt-parent = <&gic>; + interrupts = <0 82 0x4>; + }; + + i2c2: i2c@0xffc72000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "renesas,rmobile-iic"; + reg = <0xffc72000 0x1000>; + interrupt-parent = <&gic>; + interrupts = <0 80 0x4>; + }; + + i2c3: i2c@0xffc73000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "renesas,rmobile-iic"; + reg = <0xffc73000 0x1000>; + interrupt-parent = <&gic>; + interrupts = <0 81 0x4>; + }; + + lan0: lan0@18000000 { + compatible = "smsc,lan9220", "smsc,lan9115"; + reg = <0x18000000 0x100>; + phy-mode = "mii"; + interrupt-parent = <&gic>; + interrupts = <0 28 0x4>; + reg-io-width = <4>; + }; }; diff --git a/arch/arm/mach-shmobile/include/mach/common.h b/arch/arm/mach-shmobile/include/mach/common.h index 8ef7ebb..4b85b18 100644 --- a/arch/arm/mach-shmobile/include/mach/common.h +++ b/arch/arm/mach-shmobile/include/mach/common.h @@ -67,7 +67,9 @@ extern void r8a7779_init_irq_dt(void); extern void r8a7779_map_io(void); extern void r8a7779_earlytimer_init(void); extern void r8a7779_add_early_devices(void); +extern void r8a7779_add_early_devices_dt(void); extern void r8a7779_add_standard_devices(void); +extern void r8a7779_add_standard_devices_dt(void); extern void r8a7779_clock_init(void); extern void r8a7779_pinmux_init(void); extern void r8a7779_pm_init(void); diff --git a/arch/arm/mach-shmobile/setup-r8a7779.c b/arch/arm/mach-shmobile/setup-r8a7779.c index c54ff9b..d4818c2 100644 --- a/arch/arm/mach-shmobile/setup-r8a7779.c +++ b/arch/arm/mach-shmobile/setup-r8a7779.c @@ -321,7 +321,7 @@ static struct platform_device i2c3_device = { .num_resources = ARRAY_SIZE(rcar_i2c3_res), }; -static struct platform_device *r8a7779_early_devices[] __initdata = { +static struct platform_device *r8a7779_early_devices_dt[] __initdata = { &scif0_device, &scif1_device, &scif2_device, @@ -330,15 +330,15 @@ static struct platform_device *r8a7779_early_devices[] __initdata = { &scif5_device, &tmu00_device, &tmu01_device, +}; + +static struct platform_device *r8a7779_early_devices[] __initdata = { &i2c0_device, &i2c1_device, &i2c2_device, &i2c3_device, }; -static struct platform_device *r8a7779_late_devices[] __initdata = { -}; - void __init r8a7779_add_standard_devices(void) { #ifdef CONFIG_CACHE_L2X0 @@ -349,10 +349,10 @@ void __init r8a7779_add_standard_devices(void) r8a7779_init_pm_domains(); + platform_add_devices(r8a7779_early_devices_dt, + ARRAY_SIZE(r8a7779_early_devices_dt)); platform_add_devices(r8a7779_early_devices, ARRAY_SIZE(r8a7779_early_devices)); - platform_add_devices(r8a7779_late_devices, - ARRAY_SIZE(r8a7779_late_devices)); } /* do nothing for !CONFIG_SMP or !CONFIG_HAVE_TWD */ @@ -367,6 +367,8 @@ void __init r8a7779_earlytimer_init(void) void __init r8a7779_add_early_devices(void) { + early_platform_add_devices(r8a7779_early_devices_dt, + ARRAY_SIZE(r8a7779_early_devices_dt)); early_platform_add_devices(r8a7779_early_devices, ARRAY_SIZE(r8a7779_early_devices)); @@ -386,3 +388,47 @@ void __init r8a7779_add_early_devices(void) * command line in case of the marzen board. */ } + +#ifdef CONFIG_USE_OF +void __init r8a7779_add_early_devices_dt(void) +{ + shmobile_setup_delay(1000, 2, 4); /* Cortex-A9 @ 1000MHz */ + + early_platform_add_devices(r8a7779_early_devices_dt, + ARRAY_SIZE(r8a7779_early_devices_dt)); + + /* Early serial console setup is not included here. + * See comment in r8a7779_add_early_devices(). + */ +} + +static const struct of_dev_auxdata r8a7779_auxdata_lookup[] __initconst = { + {}, +}; + +void __init r8a7779_add_standard_devices_dt(void) +{ + /* clocks are setup late during boot in the case of DT */ + r8a7779_clock_init(); + + platform_add_devices(r8a7779_early_devices_dt, + ARRAY_SIZE(r8a7779_early_devices_dt)); + of_platform_populate(NULL, of_default_bus_match_table, + r8a7779_auxdata_lookup, NULL); +} + +static const char *r8a7779_compat_dt[] __initdata = { + "renesas,r8a7779", + NULL, +}; + +DT_MACHINE_START(SH73A0_DT, "Generic R8A7779 (Flattened Device Tree)") + .map_io = r8a7779_map_io, + .init_early = r8a7779_add_early_devices_dt, + .nr_irqs = NR_IRQS_LEGACY, + .init_irq = r8a7779_init_irq_dt, + .init_machine = r8a7779_add_standard_devices_dt, + .init_time = shmobile_timer_init, + .dt_compat = r8a7779_compat_dt, +MACHINE_END +#endif /* CONFIG_USE_OF */