From patchwork Tue Oct 11 14:13:15 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: thomas.abraham@linaro.org X-Patchwork-Id: 4632 Return-Path: X-Original-To: patchwork@peony.canonical.com Delivered-To: patchwork@peony.canonical.com Received: from fiordland.canonical.com (fiordland.canonical.com [91.189.94.145]) by peony.canonical.com (Postfix) with ESMTP id 7D6CB23EF7 for ; Tue, 11 Oct 2011 14:11:49 +0000 (UTC) Received: from mail-gx0-f180.google.com (mail-gx0-f180.google.com [209.85.161.180]) by fiordland.canonical.com (Postfix) with ESMTP id 358CEA18357 for ; Tue, 11 Oct 2011 14:11:49 +0000 (UTC) Received: by ggni2 with SMTP id i2so8851855ggn.11 for ; Tue, 11 Oct 2011 07:11:48 -0700 (PDT) Received: by 10.223.60.73 with SMTP id o9mr22179184fah.18.1318342308258; Tue, 11 Oct 2011 07:11:48 -0700 (PDT) X-Forwarded-To: linaro-patchwork@canonical.com X-Forwarded-For: patch@linaro.org linaro-patchwork@canonical.com Delivered-To: patches@linaro.org Received: by 10.152.24.41 with SMTP id r9cs162920laf; Tue, 11 Oct 2011 07:11:48 -0700 (PDT) Received: by 10.14.34.13 with SMTP id r13mr2197493eea.121.1318342307548; Tue, 11 Oct 2011 07:11:47 -0700 (PDT) Received: from mailout1.samsung.com (mailout1.samsung.com. [203.254.224.24]) by mx.google.com with ESMTP id s52si4398834ees.176.2011.10.11.07.11.47; Tue, 11 Oct 2011 07:11:47 -0700 (PDT) Received-SPF: neutral (google.com: 203.254.224.24 is neither permitted nor denied by best guess record for domain of thomas.abraham@linaro.org) client-ip=203.254.224.24; Authentication-Results: mx.google.com; spf=neutral (google.com: 203.254.224.24 is neither permitted nor denied by best guess record for domain of thomas.abraham@linaro.org) smtp.mail=thomas.abraham@linaro.org Received: from epcpsbgm2.samsung.com (mailout1.samsung.com [203.254.224.24]) by mailout1.samsung.com (Oracle Communications Messaging Exchange Server 7u4-19.01 64bit (built Sep 7 2010)) with ESMTP id <0LSW00BB0NFK8Z00@mailout1.samsung.com> for patches@linaro.org; Tue, 11 Oct 2011 23:11:46 +0900 (KST) X-AuditID: cbfee61b-b7b7fae000005864-f5-4e944ea21f7f Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm2.samsung.com (MMPCPMTA) with SMTP id 2E.BF.22628.2AE449E4; Tue, 11 Oct 2011 23:11:46 +0900 (KST) Received: from localhost.localdomain ([107.108.73.37]) by mmp2.samsung.com (Oracle Communications Messaging Exchange Server 7u4-19.01 64bit (built Sep 7 2010)) with ESMTPA id <0LSW00BYLNFF5S40@mmp2.samsung.com> for patches@linaro.org; Tue, 11 Oct 2011 23:11:46 +0900 (KST) From: Thomas Abraham To: devicetree-discuss@lists.ozlabs.org, linux-samsung-soc@vger.kernel.org Cc: grant.likely@secretlab.ca, rob.herring@calxeda.com, arnd@arndb.de, kgene.kim@samsung.com, linux-arm-kernel@lists.infradead.org, patches@linaro.org Subject: [PATCH 1/2] ARM: Samsung: Add Exynos4 device tree enabled board file Date: Tue, 11 Oct 2011 19:43:15 +0530 Message-id: <1318342396-26178-2-git-send-email-thomas.abraham@linaro.org> X-Mailer: git-send-email 1.6.6.rc2 In-reply-to: <1318342396-26178-1-git-send-email-thomas.abraham@linaro.org> References: <1318342396-26178-1-git-send-email-thomas.abraham@linaro.org> X-Brightmail-Tracker: AAAAAA== Add a new Exynos4 compatible device tree enabled board file. Boards based on the Exynos4 family of SoC's can use this as the machine/board file. When using this machine fike, a corresponding device tree blob which describes the board's properties should be supplied at boot time to the kernel. Signed-off-by: Thomas Abraham Acked-by: Grant Likely --- .../devicetree/bindings/arm/insignal-boards.txt | 8 ++ .../devicetree/bindings/arm/samsung-boards.txt | 8 ++ arch/arm/mach-exynos4/Kconfig | 14 +++ arch/arm/mach-exynos4/Makefile | 2 + arch/arm/mach-exynos4/mach-exynos4-dt.c | 85 ++++++++++++++++++++ 5 files changed, 117 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/arm/insignal-boards.txt create mode 100644 Documentation/devicetree/bindings/arm/samsung-boards.txt create mode 100644 arch/arm/mach-exynos4/mach-exynos4-dt.c diff --git a/Documentation/devicetree/bindings/arm/insignal-boards.txt b/Documentation/devicetree/bindings/arm/insignal-boards.txt new file mode 100644 index 0000000..524c3dc --- /dev/null +++ b/Documentation/devicetree/bindings/arm/insignal-boards.txt @@ -0,0 +1,8 @@ +* Insignal's Exynos4210 based Origen evaluation board + +Origen low-cost evaluation board is based on Samsung's Exynos4210 SoC. + +Required root node properties: + - compatible = should be one or more of the following. + (a) "samsung,smdkv310" - for Samsung's SMDKV310 eval board. + (b) "samsung,exynos4210" - for boards based on Exynos4210 SoC. diff --git a/Documentation/devicetree/bindings/arm/samsung-boards.txt b/Documentation/devicetree/bindings/arm/samsung-boards.txt new file mode 100644 index 0000000..0bf68be --- /dev/null +++ b/Documentation/devicetree/bindings/arm/samsung-boards.txt @@ -0,0 +1,8 @@ +* Samsung's Exynos4210 based SMDKV310 evaluation board + +SMDKV310 evaluation board is based on Samsung's Exynos4210 SoC. + +Required root node properties: + - compatible = should be one or more of the following. + (a) "samsung,smdkv310" - for Samsung's SMDKV310 eval board. + (b) "samsung,exynos4210" - for boards based on Exynos4210 SoC. diff --git a/arch/arm/mach-exynos4/Kconfig b/arch/arm/mach-exynos4/Kconfig index 0c5888a..39dc135 100644 --- a/arch/arm/mach-exynos4/Kconfig +++ b/arch/arm/mach-exynos4/Kconfig @@ -304,6 +304,20 @@ config MACH_SMDK4412 help Machine support for Samsung SMDK4412 +comment "Flattened Device Tree based board for Exynos4 based SoC" + +config MACH_EXYNOS4_DT + bool "Samsung Exynos4 Machine using device tree" + select CPU_EXYNOS4210 + select USE_OF + select ARM_AMBA + select HAVE_SAMSUNG_KEYPAD if INPUT_KEYBOARD + help + Machine support for Samsung Exynos4 machine with device tree enabled. + Select this if a fdt blob is available for the Exynos4 SoC based board. + Note: This is under development and not all peripherals can be supported + with this machine file. + endmenu comment "Configuration for HSMMC bus width" diff --git a/arch/arm/mach-exynos4/Makefile b/arch/arm/mach-exynos4/Makefile index 8066538..4e302cb 100644 --- a/arch/arm/mach-exynos4/Makefile +++ b/arch/arm/mach-exynos4/Makefile @@ -37,6 +37,8 @@ obj-$(CONFIG_MACH_ORIGEN) += mach-origen.o obj-$(CONFIG_MACH_SMDK4212) += mach-smdk4x12.o obj-$(CONFIG_MACH_SMDK4412) += mach-smdk4x12.o +obj-$(CONFIG_MACH_EXYNOS4_DT) += mach-exynos4-dt.o + # device support obj-y += dev-audio.o diff --git a/arch/arm/mach-exynos4/mach-exynos4-dt.c b/arch/arm/mach-exynos4/mach-exynos4-dt.c new file mode 100644 index 0000000..85fa027 --- /dev/null +++ b/arch/arm/mach-exynos4/mach-exynos4-dt.c @@ -0,0 +1,85 @@ +/* + * Samsung's Exynos4210 flattened device tree enabled machine + * + * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * Copyright (c) 2010-2011 Linaro Ltd. + * www.linaro.org + * + * 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. +*/ + +#include +#include + +#include +#include + +#include +#include +#include + +/* + * The following lookup table is used to override device names when devices + * are registered from device tree. This is temporarily added to enable + * device tree support addition for the Exynos4 architecture. + * + * For drivers that require platform data to be provided from the machine + * file, a platform data pointer can also be supplied along with the + * devices names. Usually, the platform data elements that cannot be parsed + * from the device tree by the drivers (example: function pointers) are + * supplied. But it should be noted that this is a temporary mechanism and + * at some point, the drivers should be capable of parsing all the platform + * data from the device tree. + */ +static const struct of_dev_auxdata exynos4210_auxdata_lookup[] __initconst = { + OF_DEV_AUXDATA("samsung,exynos4210-uart", S5P_PA_UART0, + "exynos4210-uart.0", NULL), + OF_DEV_AUXDATA("samsung,exynos4210-uart", S5P_PA_UART1, + "exynos4210-uart.1", NULL), + OF_DEV_AUXDATA("samsung,exynos4210-uart", S5P_PA_UART2, + "exynos4210-uart.2", NULL), + OF_DEV_AUXDATA("samsung,exynos4210-uart", S5P_PA_UART3, + "exynos4210-uart.3", NULL), + OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(0), + "exynos4-sdhci.0", NULL), + OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(1), + "exynos4-sdhci.1", NULL), + OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(2), + "exynos4-sdhci.2", NULL), + OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(3), + "exynos4-sdhci.3", NULL), + OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(0), + "s3c2440-i2c.0", NULL), + OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_PDMA0, "dma-pl330.0", NULL), + OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_PDMA1, "dma-pl330.1", NULL), + {}, +}; + +static void __init exynos4210_dt_map_io(void) +{ + s5p_init_io(NULL, 0, S5P_VA_CHIPID); + s3c24xx_init_clocks(24000000); +} + +static void __init exynos4210_dt_machine_init(void) +{ + of_platform_populate(NULL, of_default_bus_match_table, + exynos4210_auxdata_lookup, NULL); +} + +static char const *exynos4210_dt_compat[] __initdata = { + "samsung,exynos4210", + NULL +}; + +DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)") + /* Maintainer: Thomas Abraham */ + .init_irq = exynos4_init_irq, + .map_io = exynos4210_dt_map_io, + .init_machine = exynos4210_dt_machine_init, + .timer = &exynos4_timer, + .dt_compat = exynos4210_dt_compat, +MACHINE_END