From: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org, ralf@linux-mips.org,
devicetree-discuss@lists.ozlabs.org, grant.likely@secretlab.ca,
linux-kernel@vger.kernel.org
Cc: David Daney <ddaney@caviumnetworks.com>
Subject: [RFC PATCH v4 1/6] of: Allow scripts/dtc/libfdt to be used from kernel code
Date: Fri, 20 May 2011 15:25:38 -0700 [thread overview]
Message-ID: <1305930343-31259-2-git-send-email-ddaney@caviumnetworks.com> (raw)
In-Reply-To: <1305930343-31259-1-git-send-email-ddaney@caviumnetworks.com>
To use it you need to do this in your Kconfig:
select LIBFDT
And in the Makefile of the code using libfdt something like:
ccflags-y := -include linux/libfdt_env.h -I$(src)/../../../scripts/dtc/libfdt
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
---
drivers/of/Kconfig | 3 +++
drivers/of/Makefile | 2 ++
drivers/of/libfdt/Makefile | 3 +++
drivers/of/libfdt/fdt.c | 2 ++
drivers/of/libfdt/fdt_ro.c | 2 ++
drivers/of/libfdt/fdt_wip.c | 2 ++
include/linux/libfdt.h | 8 ++++++++
include/linux/libfdt_env.h | 13 +++++++++++++
8 files changed, 35 insertions(+), 0 deletions(-)
create mode 100644 drivers/of/libfdt/Makefile
create mode 100644 drivers/of/libfdt/fdt.c
create mode 100644 drivers/of/libfdt/fdt_ro.c
create mode 100644 drivers/of/libfdt/fdt_wip.c
create mode 100644 include/linux/libfdt.h
create mode 100644 include/linux/libfdt_env.h
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index d06a637..9b0474e 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -4,6 +4,9 @@ config DTC
config OF
bool
+config LIBFDT
+ bool
+
menu "Device Tree and Open Firmware support"
depends on OF
diff --git a/drivers/of/Makefile b/drivers/of/Makefile
index f7861ed..a8dec2f 100644
--- a/drivers/of/Makefile
+++ b/drivers/of/Makefile
@@ -10,3 +10,5 @@ obj-$(CONFIG_OF_NET) += of_net.o
obj-$(CONFIG_OF_SPI) += of_spi.o
obj-$(CONFIG_OF_MDIO) += of_mdio.o
obj-$(CONFIG_OF_PCI) += of_pci.o
+
+obj-$(CONFIG_LIBFDT) += libfdt/
diff --git a/drivers/of/libfdt/Makefile b/drivers/of/libfdt/Makefile
new file mode 100644
index 0000000..f6bc1c90
--- /dev/null
+++ b/drivers/of/libfdt/Makefile
@@ -0,0 +1,3 @@
+ccflags-y := -I$(src)/../../../scripts/dtc/libfdt
+
+obj-y = fdt.o fdt_wip.o fdt_ro.o
diff --git a/drivers/of/libfdt/fdt.c b/drivers/of/libfdt/fdt.c
new file mode 100644
index 0000000..91495cd
--- /dev/null
+++ b/drivers/of/libfdt/fdt.c
@@ -0,0 +1,2 @@
+#include <linux/libfdt_env.h>
+#include "../../../scripts/dtc/libfdt/fdt.c"
diff --git a/drivers/of/libfdt/fdt_ro.c b/drivers/of/libfdt/fdt_ro.c
new file mode 100644
index 0000000..547e723
--- /dev/null
+++ b/drivers/of/libfdt/fdt_ro.c
@@ -0,0 +1,2 @@
+#include <linux/libfdt_env.h>
+#include "../../../scripts/dtc/libfdt/fdt_ro.c"
diff --git a/drivers/of/libfdt/fdt_wip.c b/drivers/of/libfdt/fdt_wip.c
new file mode 100644
index 0000000..bbe19ec
--- /dev/null
+++ b/drivers/of/libfdt/fdt_wip.c
@@ -0,0 +1,2 @@
+#include <linux/libfdt_env.h>
+#include "../../../scripts/dtc/libfdt/fdt_wip.c"
diff --git a/include/linux/libfdt.h b/include/linux/libfdt.h
new file mode 100644
index 0000000..4c0306c
--- /dev/null
+++ b/include/linux/libfdt.h
@@ -0,0 +1,8 @@
+#ifndef _INCLUDE_LIBFDT_H_
+#define _INCLUDE_LIBFDT_H_
+
+#include <linux/libfdt_env.h>
+#include "../../scripts/dtc/libfdt/fdt.h"
+#include "../../scripts/dtc/libfdt/libfdt.h"
+
+#endif /* _INCLUDE_LIBFDT_H_ */
diff --git a/include/linux/libfdt_env.h b/include/linux/libfdt_env.h
new file mode 100644
index 0000000..01508c7
--- /dev/null
+++ b/include/linux/libfdt_env.h
@@ -0,0 +1,13 @@
+#ifndef _LIBFDT_ENV_H
+#define _LIBFDT_ENV_H
+
+#include <linux/string.h>
+
+#include <asm/byteorder.h>
+
+#define fdt32_to_cpu(x) be32_to_cpu(x)
+#define cpu_to_fdt32(x) cpu_to_be32(x)
+#define fdt64_to_cpu(x) be64_to_cpu(x)
+#define cpu_to_fdt64(x) cpu_to_be64(x)
+
+#endif /* _LIBFDT_ENV_H */
--
1.7.2.3
next prev parent reply other threads:[~2011-05-20 22:26 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-20 22:25 [RFC PATCH v4 0/6] MIPS: Octeon: Use Device Tree David Daney
2011-05-20 22:25 ` David Daney [this message]
2011-05-21 6:33 ` [RFC PATCH v4 1/6] of: Allow scripts/dtc/libfdt to be used from kernel code David Gibson
2011-05-23 16:47 ` David Daney
2011-05-27 3:24 ` David Gibson
2011-05-27 16:49 ` David Daney
2011-05-27 20:12 ` Grant Likely
2011-05-20 22:25 ` [RFC PATCH v4 2/6] of: Make of_find_node_by_path() traverse /aliases for relative paths David Daney
2011-05-27 2:48 ` Grant Likely
2011-05-20 22:25 ` [RFC PATCH v4 3/6] MIPS: Octeon: Add device tree source files David Daney
2011-05-27 1:56 ` Grant Likely
2011-05-27 17:00 ` David Daney
2011-05-27 20:13 ` Grant Likely
2011-05-20 22:25 ` [RFC PATCH v4 4/6] MIPS: Prune some target specific code out of prom.c David Daney
2011-05-27 1:58 ` Grant Likely
2011-05-27 17:05 ` David Daney
2011-05-20 22:25 ` [RFC PATCH v4 5/6] MIPS: Octeon: Add irq_create_of_mapping() and GPIO interrupts David Daney
2011-05-20 22:25 ` [RFC PATCH v4 6/6] MIPS: Octeon: Initialize and fixup device tree David Daney
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