From patchwork Thu Nov 5 07:47:47 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Grant Likely X-Patchwork-Id: 37748 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by ozlabs.org (Postfix) with ESMTP id 058ECB7B68 for ; Thu, 5 Nov 2009 18:47:52 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754571AbZKEHrp (ORCPT ); Thu, 5 Nov 2009 02:47:45 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754610AbZKEHrp (ORCPT ); Thu, 5 Nov 2009 02:47:45 -0500 Received: from mail-pw0-f42.google.com ([209.85.160.42]:47580 "EHLO mail-pw0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754571AbZKEHrp (ORCPT ); Thu, 5 Nov 2009 02:47:45 -0500 Received: by pwj9 with SMTP id 9so3728690pwj.21 for ; Wed, 04 Nov 2009 23:47:50 -0800 (PST) Received: by 10.114.214.28 with SMTP id m28mr4441036wag.44.1257407269994; Wed, 04 Nov 2009 23:47:49 -0800 (PST) Received: from angua (S01060002b3d79728.cg.shawcable.net [68.146.87.181]) by mx.google.com with ESMTPS id 20sm1061896pzk.9.2009.11.04.23.47.48 (version=TLSv1/SSLv3 cipher=RC4-MD5); Wed, 04 Nov 2009 23:47:49 -0800 (PST) Received: from [127.0.1.1] (unknown [IPv6:::1]) by angua (Postfix) with ESMTP id 73B8311ED0; Thu, 5 Nov 2009 00:47:47 -0700 (MST) From: Grant Likely Subject: [PATCH 11/11] of/flattree: Merge early_init_dt_check_for_initrd() To: linuxppc-dev@lists.ozlabs.org, devicetree-discuss@lists.ozlabs.org, benh@kernel.crashing.org, sfr@canb.auug.org.au, davem@davemloft.net, sparclinux@vger.kernel.org, monstr@monstr.eu, microblaze-uclinux@itee.uq.edu.au Date: Thu, 05 Nov 2009 00:47:47 -0700 Message-ID: <20091105074724.10460.4083.stgit@angua> In-Reply-To: <20091105073728.10460.6061.stgit@angua> References: <20091105073728.10460.6061.stgit@angua> User-Agent: StGIT/0.14.2 MIME-Version: 1.0 Sender: sparclinux-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: sparclinux@vger.kernel.org Merge common code between PowerPC and Microblaze Signed-off-by: Grant Likely --- arch/microblaze/kernel/prom.c | 32 -------------------------------- arch/powerpc/kernel/prom.c | 30 ------------------------------ drivers/of/fdt.c | 37 +++++++++++++++++++++++++++++++++++++ include/linux/of_fdt.h | 1 + 4 files changed, 38 insertions(+), 62 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c index a38e373..7959495 100644 --- a/arch/microblaze/kernel/prom.c +++ b/arch/microblaze/kernel/prom.c @@ -113,38 +113,6 @@ static int __init early_init_dt_scan_cpus(unsigned long node, return 0; } -#ifdef CONFIG_BLK_DEV_INITRD -static void __init early_init_dt_check_for_initrd(unsigned long node) -{ - unsigned long l; - u32 *prop; - - pr_debug("Looking for initrd properties... "); - - prop = of_get_flat_dt_prop(node, "linux,initrd-start", &l); - if (prop) { - initrd_start = (unsigned long) - __va((u32)of_read_ulong(prop, l/4)); - - prop = of_get_flat_dt_prop(node, "linux,initrd-end", &l); - if (prop) { - initrd_end = (unsigned long) - __va((u32)of_read_ulong(prop, 1/4)); - initrd_below_start_ok = 1; - } else { - initrd_start = 0; - } - } - - pr_debug("initrd_start=0x%lx initrd_end=0x%lx\n", - initrd_start, initrd_end); -} -#else -static inline void early_init_dt_check_for_initrd(unsigned long node) -{ -} -#endif /* CONFIG_BLK_DEV_INITRD */ - static int __init early_init_dt_scan_chosen(unsigned long node, const char *uname, int depth, void *data) { diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index 7f88566..1ecd6c6 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -373,36 +373,6 @@ static int __init early_init_dt_scan_cpus(unsigned long node, return 0; } -#ifdef CONFIG_BLK_DEV_INITRD -static void __init early_init_dt_check_for_initrd(unsigned long node) -{ - unsigned long l; - u32 *prop; - - DBG("Looking for initrd properties... "); - - prop = of_get_flat_dt_prop(node, "linux,initrd-start", &l); - if (prop) { - initrd_start = (unsigned long)__va(of_read_ulong(prop, l/4)); - - prop = of_get_flat_dt_prop(node, "linux,initrd-end", &l); - if (prop) { - initrd_end = (unsigned long) - __va(of_read_ulong(prop, l/4)); - initrd_below_start_ok = 1; - } else { - initrd_start = 0; - } - } - - DBG("initrd_start=0x%lx initrd_end=0x%lx\n", initrd_start, initrd_end); -} -#else -static inline void early_init_dt_check_for_initrd(unsigned long node) -{ -} -#endif /* CONFIG_BLK_DEV_INITRD */ - static int __init early_init_dt_scan_chosen(unsigned long node, const char *uname, int depth, void *data) { diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index ad3a2b6..3c58f10 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -11,6 +11,7 @@ #include #include +#include #include #include @@ -370,6 +371,42 @@ unsigned long __init unflatten_dt_node(unsigned long mem, return mem; } +#ifdef CONFIG_BLK_DEV_INITRD +/** + * early_init_dt_check_for_initrd - Decode initrd location from flat tree + * @node: reference to node containing initrd location ('chosen') + */ +void __init early_init_dt_check_for_initrd(unsigned long node) +{ + unsigned long len; + u32 *prop; + + pr_debug("Looking for initrd properties... "); + + prop = of_get_flat_dt_prop(node, "linux,initrd-start", &len); + if (prop) { + initrd_start = (unsigned long) + __va(of_read_ulong(prop, len/4)); + + prop = of_get_flat_dt_prop(node, "linux,initrd-end", &len); + if (prop) { + initrd_end = (unsigned long) + __va(of_read_ulong(prop, len/4)); + initrd_below_start_ok = 1; + } else { + initrd_start = 0; + } + } + + pr_debug("initrd_start=0x%lx initrd_end=0x%lx\n", + initrd_start, initrd_end); +} +#else +inline void early_init_dt_check_for_initrd(unsigned long node) +{ +} +#endif /* CONFIG_BLK_DEV_INITRD */ + /** * unflatten_device_tree - create tree of device_nodes from flat blob * diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h index 81231e0..ec2db82 100644 --- a/include/linux/of_fdt.h +++ b/include/linux/of_fdt.h @@ -69,6 +69,7 @@ extern void *of_get_flat_dt_prop(unsigned long node, const char *name, unsigned long *size); extern int of_flat_dt_is_compatible(unsigned long node, const char *name); extern unsigned long of_get_flat_dt_root(void); +extern void early_init_dt_check_for_initrd(unsigned long node); /* Other Prototypes */ extern void finish_device_tree(void);