* [PATCH 00/20] FDT clean-ups and libfdt support
@ 2014-04-03 22:16 Rob Herring
2014-04-03 22:16 ` [PATCH 08/20] of/fdt: consolidate built-in dtb section variables Rob Herring
0 siblings, 1 reply; 4+ messages in thread
From: Rob Herring @ 2014-04-03 22:16 UTC (permalink / raw)
To: linux-kernel
Cc: linux-mips, Aurelien Jacquiot, Benjamin Herrenschmidt,
H. Peter Anvin, Max Filippov, Paul Mackerras, linux, Rob Herring,
Russell King, linux-c6x-dev, x86, Ingo Molnar, Mark Salter,
Grant Likely, linux-xtensa, James Hogan, Thomas Gleixner,
linux-metag, linux-arm-kernel, Chris Zankel, Michal Simek,
Vineet Gupta, Ralf Baechle, linuxppc-dev
From: Rob Herring <robh@kernel.org>
This is a series of clean-ups of architecture FDT code and converts the
core FDT code over to using libfdt functions. This is in preparation
to add FDT based address translation parsing functions for early
console support.
The current MIPS lantiq and xlp DT code is buggy as built-in DTBs need
to be copied out of init section. Patches 2 and 3 should be applied to
3.15.
A branch is available here[1]. Please test! I've compiled on arm,
arm64, mips, microblaze, and powerpc and booted on arm and arm64.
Rob
[1] git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git libfdt
Rob Herring (20):
mips: octeon: convert to use unflatten_and_copy_device_tree
mips: lantiq: copy built-in DTB out of init section
mips: xlp: copy built-in DTB out of init section
mips: ralink: convert to use unflatten_and_copy_device_tree
ARM: dt: use default early_init_dt_alloc_memory_arch
c6x: convert fdt pointers to opaque pointers
mips: convert fdt pointers to opaque pointers
of/fdt: consolidate built-in dtb section variables
of/fdt: create common debugfs
of/fdt: remove some unneeded includes
of/fdt: remove unused of_scan_flat_dt_by_path
of/fdt: update of_get_flat_dt_prop in prep for libfdt
of/fdt: Convert FDT functions to use libfdt
of/fdt: use libfdt accessors for header data
of/fdt: move memreserve and dtb memory reservations into core
build: add libfdt include path globally
powerpc: use libfdt accessors for header data
x86: use libfdt accessors for header data
of/fdt: convert initial_boot_params to opaque pointer
of: push struct boot_param_header and defines into powerpc
Makefile | 5 +
arch/arc/include/asm/sections.h | 1 -
arch/arc/kernel/devtree.c | 2 +-
arch/arm/include/asm/prom.h | 2 -
arch/arm/kernel/devtree.c | 34 +--
arch/arm/mach-exynos/exynos.c | 2 +-
arch/arm/mach-vexpress/platsmp.c | 2 +-
arch/arm/mm/init.c | 1 -
arch/arm/plat-samsung/s5p-dev-mfc.c | 4 +-
arch/arm64/mm/init.c | 21 --
arch/c6x/kernel/setup.c | 4 +-
arch/metag/kernel/setup.c | 4 -
arch/microblaze/kernel/prom.c | 37 +--
arch/mips/cavium-octeon/Makefile | 3 -
arch/mips/cavium-octeon/setup.c | 18 +-
arch/mips/include/asm/mips-boards/generic.h | 4 -
arch/mips/include/asm/prom.h | 6 +-
arch/mips/kernel/prom.c | 2 +-
arch/mips/lantiq/prom.c | 15 +-
arch/mips/lantiq/prom.h | 2 -
arch/mips/mti-sead3/Makefile | 2 -
arch/mips/mti-sead3/sead3-setup.c | 8 +-
arch/mips/netlogic/xlp/dt.c | 17 +-
arch/mips/ralink/of.c | 29 +--
arch/openrisc/kernel/vmlinux.h | 2 -
arch/powerpc/include/asm/prom.h | 39 +++
arch/powerpc/kernel/epapr_paravirt.c | 2 +-
arch/powerpc/kernel/fadump.c | 4 +-
arch/powerpc/kernel/prom.c | 77 ++----
arch/powerpc/kernel/rtas.c | 2 +-
arch/powerpc/mm/hash_utils_64.c | 22 +-
arch/powerpc/platforms/52xx/efika.c | 4 +-
arch/powerpc/platforms/chrp/setup.c | 4 +-
arch/powerpc/platforms/powernv/opal.c | 12 +-
arch/powerpc/platforms/pseries/setup.c | 4 +-
arch/x86/kernel/devicetree.c | 7 +-
arch/xtensa/kernel/setup.c | 3 +-
drivers/of/Kconfig | 1 +
drivers/of/fdt.c | 379 +++++++++-------------------
drivers/of/of_reserved_mem.c | 4 +-
include/linux/of_fdt.h | 64 +----
lib/Makefile | 2 -
42 files changed, 261 insertions(+), 596 deletions(-)
--
1.8.3.2
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH 08/20] of/fdt: consolidate built-in dtb section variables
2014-04-03 22:16 [PATCH 00/20] FDT clean-ups and libfdt support Rob Herring
@ 2014-04-03 22:16 ` Rob Herring
2014-04-07 10:54 ` James Hogan
2014-04-08 4:23 ` Vineet Gupta
0 siblings, 2 replies; 4+ messages in thread
From: Rob Herring @ 2014-04-03 22:16 UTC (permalink / raw)
To: linux-kernel
Cc: Rob Herring, James Hogan, Chris Zankel, Vineet Gupta,
linux-xtensa, Ralf Baechle, Max Filippov, linux-mips, linux,
Grant Likely, linux-metag
From: Rob Herring <robh@kernel.org>
Unify the various architectures __dtb_start and __dtb_end definitions
moving them into of_fdt.h.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: linux-metag@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux@lists.openrisc.net
Cc: linux-xtensa@linux-xtensa.org
---
arch/arc/include/asm/sections.h | 1 -
arch/metag/kernel/setup.c | 4 ----
arch/mips/include/asm/mips-boards/generic.h | 2 --
arch/mips/lantiq/prom.h | 2 --
arch/mips/netlogic/xlp/dt.c | 2 +-
arch/mips/ralink/of.c | 2 --
arch/openrisc/kernel/vmlinux.h | 2 --
arch/xtensa/kernel/setup.c | 1 -
include/linux/of_fdt.h | 3 +++
9 files changed, 4 insertions(+), 15 deletions(-)
diff --git a/arch/arc/include/asm/sections.h b/arch/arc/include/asm/sections.h
index 764f1e3..09db952 100644
--- a/arch/arc/include/asm/sections.h
+++ b/arch/arc/include/asm/sections.h
@@ -12,6 +12,5 @@
#include <asm-generic/sections.h>
extern char __arc_dccm_base[];
-extern char __dtb_start[];
#endif
diff --git a/arch/metag/kernel/setup.c b/arch/metag/kernel/setup.c
index 129c7cd..31cf53d 100644
--- a/arch/metag/kernel/setup.c
+++ b/arch/metag/kernel/setup.c
@@ -105,10 +105,6 @@
extern char _heap_start[];
-#ifdef CONFIG_METAG_BUILTIN_DTB
-extern u32 __dtb_start[];
-#endif
-
#ifdef CONFIG_DA_CONSOLE
/* Our early channel based console driver */
extern struct console dash_console;
diff --git a/arch/mips/include/asm/mips-boards/generic.h b/arch/mips/include/asm/mips-boards/generic.h
index b969491..c904c24 100644
--- a/arch/mips/include/asm/mips-boards/generic.h
+++ b/arch/mips/include/asm/mips-boards/generic.h
@@ -67,8 +67,6 @@
extern int mips_revision_sconid;
-extern char __dtb_start[];
-
#ifdef CONFIG_PCI
extern void mips_pcibios_init(void);
#else
diff --git a/arch/mips/lantiq/prom.h b/arch/mips/lantiq/prom.h
index 69a4c58..bfd2d58 100644
--- a/arch/mips/lantiq/prom.h
+++ b/arch/mips/lantiq/prom.h
@@ -26,6 +26,4 @@ struct ltq_soc_info {
extern void ltq_soc_detect(struct ltq_soc_info *i);
extern void ltq_soc_init(void);
-extern char __dtb_start[];
-
#endif
diff --git a/arch/mips/netlogic/xlp/dt.c b/arch/mips/netlogic/xlp/dt.c
index 7f9615a..bdde331 100644
--- a/arch/mips/netlogic/xlp/dt.c
+++ b/arch/mips/netlogic/xlp/dt.c
@@ -42,7 +42,7 @@
#include <asm/prom.h>
extern u32 __dtb_xlp_evp_begin[], __dtb_xlp_svp_begin[],
- __dtb_xlp_fvp_begin[], __dtb_xlp_gvp_begin[], __dtb_start[];
+ __dtb_xlp_fvp_begin[], __dtb_xlp_gvp_begin[];
static void *xlp_fdt_blob;
void __init *xlp_dt_init(void *fdtp)
diff --git a/arch/mips/ralink/of.c b/arch/mips/ralink/of.c
index 91d7060..2513952 100644
--- a/arch/mips/ralink/of.c
+++ b/arch/mips/ralink/of.c
@@ -28,8 +28,6 @@
__iomem void *rt_sysc_membase;
__iomem void *rt_memc_membase;
-extern char __dtb_start[];
-
__iomem void *plat_of_remap_node(const char *node)
{
struct resource res;
diff --git a/arch/openrisc/kernel/vmlinux.h b/arch/openrisc/kernel/vmlinux.h
index 70b9ce4..bbcdf21 100644
--- a/arch/openrisc/kernel/vmlinux.h
+++ b/arch/openrisc/kernel/vmlinux.h
@@ -5,6 +5,4 @@
extern char __initrd_start, __initrd_end;
#endif
-extern u32 __dtb_start[];
-
#endif
diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index 84fe931..89986e5 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -73,7 +73,6 @@ extern int initrd_below_start_ok;
#endif
#ifdef CONFIG_OF
-extern u32 __dtb_start[];
void *dtb_start = __dtb_start;
#endif
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index ddd7219..d4d0efe 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -80,6 +80,9 @@ extern int __initdata dt_root_addr_cells;
extern int __initdata dt_root_size_cells;
extern struct boot_param_header *initial_boot_params;
+extern char __dtb_start[];
+extern char __dtb_end[];
+
/* For scanning the flat device-tree at boot time */
extern char *find_flat_dt_string(u32 offset);
extern int of_scan_flat_dt(int (*it)(unsigned long node, const char *uname,
--
1.8.3.2
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH 08/20] of/fdt: consolidate built-in dtb section variables
2014-04-03 22:16 ` [PATCH 08/20] of/fdt: consolidate built-in dtb section variables Rob Herring
@ 2014-04-07 10:54 ` James Hogan
2014-04-08 4:23 ` Vineet Gupta
1 sibling, 0 replies; 4+ messages in thread
From: James Hogan @ 2014-04-07 10:54 UTC (permalink / raw)
To: Rob Herring
Cc: Rob Herring, Chris Zankel, linux-xtensa, Vineet Gupta, linux,
linux-kernel, Ralf Baechle, Max Filippov, linux-mips,
Grant Likely, linux-metag
[-- Attachment #1.1: Type: text/plain, Size: 698 bytes --]
On 03/04/14 23:16, Rob Herring wrote:
> From: Rob Herring <robh@kernel.org>
>
> Unify the various architectures __dtb_start and __dtb_end definitions
> moving them into of_fdt.h.
>
> Signed-off-by: Rob Herring <robh@kernel.org>
> Cc: Vineet Gupta <vgupta@synopsys.com>
> Cc: James Hogan <james.hogan@imgtec.com>
> Cc: Ralf Baechle <ralf@linux-mips.org>
> Cc: Jonas Bonn <jonas@southpole.se>
> Cc: Chris Zankel <chris@zankel.net>
> Cc: Max Filippov <jcmvbkbc@gmail.com>
> Cc: linux-metag@vger.kernel.org
> Cc: linux-mips@linux-mips.org
> Cc: linux@lists.openrisc.net
> Cc: linux-xtensa@linux-xtensa.org
Acked-by: James Hogan <james.hogan@imgtec.com> [metag]
Cheers
James
[-- Attachment #1.2: OpenPGP digital signature --]
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH 08/20] of/fdt: consolidate built-in dtb section variables
2014-04-03 22:16 ` [PATCH 08/20] of/fdt: consolidate built-in dtb section variables Rob Herring
2014-04-07 10:54 ` James Hogan
@ 2014-04-08 4:23 ` Vineet Gupta
1 sibling, 0 replies; 4+ messages in thread
From: Vineet Gupta @ 2014-04-08 4:23 UTC (permalink / raw)
To: Rob Herring, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: Grant Likely, Rob Herring, James Hogan, Ralf Baechle, Jonas Bonn,
Chris Zankel, Max Filippov,
linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org,
linux-ZwoEplunGu2h2975yA52AaxOck334EZe@public.gmane.org,
linux-xtensa-PjhNF2WwrV/0Sa2dR60CXw@public.gmane.org
Hi Rob,
On Friday 04 April 2014 03:47 AM, Rob Herring wrote:
> From: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
>
> Unify the various architectures __dtb_start and __dtb_end definitions
> moving them into of_fdt.h.
>
> Signed-off-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> Cc: Vineet Gupta <vgupta-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
> Cc: James Hogan <james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
> Cc: Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>
> Cc: Jonas Bonn <jonas-A9uVI2HLR7kOP4wsBPIw7w@public.gmane.org>
> Cc: Chris Zankel <chris-YvXeqwSYzG2sTnJN9+BGXg@public.gmane.org>
> Cc: Max Filippov <jcmvbkbc-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Cc: linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org
> Cc: linux-ZwoEplunGu2h2975yA52AaxOck334EZe@public.gmane.org
> Cc: linux-xtensa-PjhNF2WwrV/0Sa2dR60CXw@public.gmane.org
Acked-by: Vineet Gupta <vgupta-HKixBCOQz3hWk0Htik3J/w@public.gmane.org> # arch/arc bits
Thx,
-Vineet
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