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| author | Grant Likely <grant.likely@secretlab.ca> | 2011-04-28 14:27:20 -0600 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2011-05-11 15:14:29 +0200 |
| commit | 9eb8f6743b076b67f00776cda4330c802e157b41 (patch) | |
| tree | 665b7bc96e672e4f3df6c25ea08b00714331a0c4 /arch/arm/mm | |
| parent | 4c2896e88d976d0e5b2213c64cde885f5677fa2b (diff) | |
| download | linux-9eb8f6743b076b67f00776cda4330c802e157b41.tar.bz2 | |
arm/dt: Allow CONFIG_OF on ARM
Add some basic empty infrastructure for DT support on ARM.
v5: - Fix off-by-one error in size calculation of initrd
- Stop mucking with cmd_line, and load command line from dt into
boot_command_line instead which matches the behaviour of ATAGS booting
v3: - moved cmd_line export and initrd setup to this patch to make the
series bisectable.
- switched to alloc_bootmem_align() for allocation when
unflattening the device tree. memblock_alloc() was not the
right interface.
Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'arch/arm/mm')
| -rw-r--r-- | arch/arm/mm/init.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index e5f6fc428348..26c405421f4e 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -15,6 +15,7 @@ #include <linux/mman.h> #include <linux/nodemask.h> #include <linux/initrd.h> +#include <linux/of_fdt.h> #include <linux/highmem.h> #include <linux/gfp.h> #include <linux/memblock.h> @@ -71,6 +72,14 @@ static int __init parse_tag_initrd2(const struct tag *tag) __tagtable(ATAG_INITRD2, parse_tag_initrd2); +#ifdef CONFIG_OF_FLATTREE +void __init early_init_dt_setup_initrd_arch(unsigned long start, unsigned long end) +{ + phys_initrd_start = start; + phys_initrd_size = end - start; +} +#endif /* CONFIG_OF_FLATTREE */ + /* * This keeps memory configuration data used by a couple memory * initialization functions, as well as show_mem() for the skipping |