From: Rob Herring <robherring2@gmail.com>
To: Grant Likely <grant.likely@linaro.org>,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Cc: Rob Herring <robh@kernel.org>
Subject: [PATCH v2 17/21] of/fdt: introduce of_get_flat_dt_size
Date: Tue, 22 Apr 2014 20:18:17 -0500 [thread overview]
Message-ID: <1398215901-25609-18-git-send-email-robherring2@gmail.com> (raw)
In-Reply-To: <1398215901-25609-1-git-send-email-robherring2@gmail.com>
From: Rob Herring <robh@kernel.org>
Add a wrapper function to retrieve the FDT size from the FDT header. This
is primarily to avoid libfdt include paths for the whole kernel.
Signed-off-by: Rob Herring <robh@kernel.org>
---
v2: new patch
drivers/of/fdt.c | 8 ++++++++
include/linux/of_fdt.h | 1 +
2 files changed, 9 insertions(+)
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index d9e6450..358bcf0 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -554,6 +554,14 @@ unsigned long __init of_get_flat_dt_root(void)
}
/**
+ * of_get_flat_dt_size - Return the total size of the FDT
+ */
+int __init of_get_flat_dt_size(void)
+{
+ return fdt_totalsize(initial_boot_params);
+}
+
+/**
* of_get_flat_dt_prop - Given a node in the flat blob, return the property ptr
*
* This function can be used within scan_flattened_dt callback to get
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index 348dae2..e10099c 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -92,6 +92,7 @@ extern const void *of_get_flat_dt_prop(unsigned long node, const char *name,
extern int of_flat_dt_is_compatible(unsigned long node, const char *name);
extern int of_flat_dt_match(unsigned long node, const char *const *matches);
extern unsigned long of_get_flat_dt_root(void);
+extern int of_get_flat_dt_size(void);
extern int early_init_dt_scan_chosen(unsigned long node, const char *uname,
int depth, void *data);
--
1.9.1
next prev parent reply other threads:[~2014-04-23 1:19 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-23 1:18 [PATCH v2 00/21] FDT clean-ups and libfdt support Rob Herring
2014-04-23 1:18 ` [PATCH v2 01/21] mips: octeon: convert to use unflatten_and_copy_device_tree Rob Herring
2014-04-23 1:18 ` [PATCH v2 02/21] mips: lantiq: copy built-in DTB out of init section Rob Herring
2014-04-23 1:18 ` [PATCH v2 03/21] mips: xlp: " Rob Herring
2014-04-23 1:18 ` [PATCH v2 04/21] mips: ralink: convert to use unflatten_and_copy_device_tree Rob Herring
2014-04-23 1:18 ` [PATCH v2 05/21] ARM: dt: use default early_init_dt_alloc_memory_arch Rob Herring
2014-04-23 1:18 ` [PATCH v2 06/21] c6x: convert fdt pointers to opaque pointers Rob Herring
2014-04-24 14:21 ` Mark Salter
2014-04-23 1:18 ` [PATCH v2 07/21] mips: " Rob Herring
2014-04-23 1:18 ` [PATCH v2 08/21] of/fdt: consolidate built-in dtb section variables Rob Herring
2014-04-23 1:18 ` [PATCH v2 09/21] of/fdt: remove some unneeded includes Rob Herring
2014-04-23 1:18 ` [PATCH v2 10/21] of/fdt: remove unused of_scan_flat_dt_by_path Rob Herring
2014-04-23 1:18 ` [PATCH v2 11/21] of/fdt: update of_get_flat_dt_prop in prep for libfdt Rob Herring
2014-04-23 1:18 ` [PATCH v2 12/21] of/fdt: Convert FDT functions to use libfdt Rob Herring
2014-04-23 1:18 ` [PATCH v2 13/21] of/fdt: use libfdt accessors for header data Rob Herring
2014-04-23 1:18 ` [PATCH v2 14/21] of/fdt: create common debugfs Rob Herring
2014-04-23 13:52 ` Michal Simek
2014-04-23 1:18 ` [PATCH v2 15/21] of/fdt: move memreserve and dtb memory reservations into core Rob Herring
2014-05-01 16:27 ` Catalin Marinas
2014-04-23 1:18 ` [PATCH v2 16/21] of/fdt: fix phys_addr_t related print size warnings Rob Herring
2014-04-23 1:18 ` Rob Herring [this message]
2014-04-23 13:45 ` [PATCH v2 17/21] of/fdt: introduce of_get_flat_dt_size Michal Simek
2014-04-23 1:18 ` [PATCH v2 18/21] powerpc: use libfdt accessors for header data Rob Herring
2014-04-23 13:48 ` Michal Simek
2014-04-23 14:05 ` Rob Herring
2014-04-23 14:21 ` Michal Simek
2014-04-23 1:18 ` [PATCH v2 19/21] x86: use FDT accessors for FDT blob " Rob Herring
2014-04-23 1:18 ` [PATCH v2 20/21] of/fdt: convert initial_boot_params to opaque pointer Rob Herring
2014-04-23 1:18 ` [PATCH v2 21/21] of: push struct boot_param_header and defines into powerpc Rob Herring
2014-04-28 1:37 ` Benjamin Herrenschmidt
2014-04-23 14:22 ` [PATCH v2 00/21] FDT clean-ups and libfdt support Michal Simek
2014-04-23 21:04 ` Max Filippov
2014-04-29 14:00 ` Grant Likely
2014-04-30 0:33 ` Stephen N Chivers
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