From patchwork Sun Feb 6 13:17:27 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: 81 Return-Path: Delivered-To: unknown Received: from imap.gmail.com (74.125.159.109) by localhost6.localdomain6 with IMAP4-SSL; 08 Jun 2011 14:39:46 -0000 Delivered-To: patches@linaro.org Received: by 10.147.124.5 with SMTP id b5cs7736yan; Sun, 6 Feb 2011 05:19:07 -0800 (PST) Received: by 10.142.217.14 with SMTP id p14mr14153212wfg.56.1296998346231; Sun, 06 Feb 2011 05:19:06 -0800 (PST) Received: from mailout1.samsung.com (mailout1.samsung.com [203.254.224.24]) by mx.google.com with ESMTP id d34si6446692wfj.75.2011.02.06.05.19.05; Sun, 06 Feb 2011 05:19:06 -0800 (PST) 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 epmmp2 (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 <0LG7000ZP6BS5I70@mailout1.samsung.com> for patches@linaro.org; Sun, 06 Feb 2011 22:19:04 +0900 (KST) Received: from localhost.localdomain ([107.108.73.37]) by mmp2.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTPA id <0LG700IIC6BL0I@mmp2.samsung.com> for patches@linaro.org; Sun, 06 Feb 2011 22:19:05 +0900 (KST) Date: Sun, 06 Feb 2011 18:47:27 +0530 From: Thomas Abraham Subject: [PATCH 1/4] ARM: DT: Add SMDKV310 machine with device tree support. In-reply-to: <1296998250-21856-1-git-send-email-thomas.abraham@linaro.org> To: devicetree-discuss@lists.ozlabs.org Cc: linaro-dev@lists.linaro.org, patches@linaro.org, kgene.kim@samsung.com Message-id: <1296998250-21856-2-git-send-email-thomas.abraham@linaro.org> X-Mailer: git-send-email 1.6.6.rc2 Content-transfer-encoding: 7BIT References: <1296998250-21856-1-git-send-email-thomas.abraham@linaro.org> This patch adds a new SMDKV310 machine that boots with a minimal device tree support. The bootargs and memory information is obtained from the device tree during boot. Signed-off-by: Thomas Abraham --- arch/arm/mach-s5pv310/Kconfig | 7 ++ arch/arm/mach-s5pv310/Makefile | 1 + arch/arm/mach-s5pv310/mach-smdkv310-dt.c | 101 ++++++++++++++++++++++++++++++ 3 files changed, 109 insertions(+), 0 deletions(-) create mode 100644 arch/arm/mach-s5pv310/mach-smdkv310-dt.c diff --git a/arch/arm/mach-s5pv310/Kconfig b/arch/arm/mach-s5pv310/Kconfig index 09c4c21..6c5f0bf 100644 --- a/arch/arm/mach-s5pv310/Kconfig +++ b/arch/arm/mach-s5pv310/Kconfig @@ -127,6 +127,13 @@ config MACH_SMDKV310 help Machine support for Samsung SMDKV310 +config MACH_SMDKV310_DT + bool "SMDKV310 with device tree support" + select CPU_S5PV310 + select USE_OF + help + Machine support for Samsung SMDKV310 with device tree based initialization. + endmenu comment "Configuration for HSMMC bus width" diff --git a/arch/arm/mach-s5pv310/Makefile b/arch/arm/mach-s5pv310/Makefile index 036fb38..59545aa 100644 --- a/arch/arm/mach-s5pv310/Makefile +++ b/arch/arm/mach-s5pv310/Makefile @@ -24,6 +24,7 @@ obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o obj-$(CONFIG_MACH_SMDKC210) += mach-smdkc210.o obj-$(CONFIG_MACH_SMDKV310) += mach-smdkv310.o +obj-$(CONFIG_MACH_SMDKV310_DT) += mach-smdkv310-dt.o obj-$(CONFIG_MACH_UNIVERSAL_C210) += mach-universal_c210.o # device support diff --git a/arch/arm/mach-s5pv310/mach-smdkv310-dt.c b/arch/arm/mach-s5pv310/mach-smdkv310-dt.c new file mode 100644 index 0000000..367fdb1 --- /dev/null +++ b/arch/arm/mach-s5pv310/mach-smdkv310-dt.c @@ -0,0 +1,101 @@ +/* linux/arch/arm/mach-s5pv310/mach-smdkv310.c + * + * Copyright (c) 2010 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * 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 + +#include +#include +#include +#include + +#include + +/* Following are default values for UCON, ULCON and UFCON UART registers */ +#define SMDKV310_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \ + S3C2410_UCON_RXILEVEL | \ + S3C2410_UCON_TXIRQMODE | \ + S3C2410_UCON_RXIRQMODE | \ + S3C2410_UCON_RXFIFO_TOI | \ + S3C2443_UCON_RXERR_IRQEN) + +#define SMDKV310_ULCON_DEFAULT S3C2410_LCON_CS8 + +#define SMDKV310_UFCON_DEFAULT (S3C2410_UFCON_FIFOMODE | \ + S5PV210_UFCON_TXTRIG4 | \ + S5PV210_UFCON_RXTRIG4) + +static struct s3c2410_uartcfg smdkv310_uartcfgs[] __initdata = { + [0] = { + .hwport = 0, + .flags = 0, + .ucon = SMDKV310_UCON_DEFAULT, + .ulcon = SMDKV310_ULCON_DEFAULT, + .ufcon = SMDKV310_UFCON_DEFAULT, + }, + [1] = { + .hwport = 1, + .flags = 0, + .ucon = SMDKV310_UCON_DEFAULT, + .ulcon = SMDKV310_ULCON_DEFAULT, + .ufcon = SMDKV310_UFCON_DEFAULT, + }, + [2] = { + .hwport = 2, + .flags = 0, + .ucon = SMDKV310_UCON_DEFAULT, + .ulcon = SMDKV310_ULCON_DEFAULT, + .ufcon = SMDKV310_UFCON_DEFAULT, + }, + [3] = { + .hwport = 3, + .flags = 0, + .ucon = SMDKV310_UCON_DEFAULT, + .ulcon = SMDKV310_ULCON_DEFAULT, + .ufcon = SMDKV310_UFCON_DEFAULT, + }, +}; + +static struct platform_device *smdkv310_devices[] __initdata = { +}; + +static void __init smdkv310_map_io(void) +{ + s5p_init_io(NULL, 0, S5P_VA_CHIPID); + s3c24xx_init_clocks(24000000); + s3c24xx_init_uarts(smdkv310_uartcfgs, ARRAY_SIZE(smdkv310_uartcfgs)); +} + +static void __init smdkv310_machine_init(void) +{ + platform_add_devices(smdkv310_devices, ARRAY_SIZE(smdkv310_devices)); +} + +static char const *smdkv310_dt_compat[] = { + "samsung,smdkv310", + NULL +}; + +DT_MACHINE_START(SMDKV310, "Samsung's SMDKV310 with flattened device tree") + /* Maintainer: Kukjin Kim */ + /* Maintainer: Changhwan Youn */ + .boot_params = S5P_PA_SDRAM + 0x100, + .init_irq = s5pv310_init_irq, + .map_io = smdkv310_map_io, + .init_machine = smdkv310_machine_init, + .timer = &s5pv310_timer, + .dt_compat = smdkv310_dt_compat, +MACHINE_END