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authorRob Herring <rob.herring@calxeda.com>2013-08-28 15:05:10 (GMT)
committerRob Herring <rob.herring@calxeda.com>2013-10-09 16:38:15 (GMT)
commit7745fc1fec6ec9556e4cc36c21b0e02589078902 (patch)
tree9aaf7c317070ada0bc8b764acdad94b97e81816b /arch/xtensa/kernel
parente94353890aaae1ab81dcacb3cafb449432224d3f (diff)
downloadlinux-7745fc1fec6ec9556e4cc36c21b0e02589078902.tar.xz
xtensa: use early_init_dt_scan
Convert xtensa to use new early_init_dt_scan function. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Cc: Chris Zankel <chris@zankel.net> Cc: linux-xtensa@linux-xtensa.org
Diffstat (limited to 'arch/xtensa/kernel')
-rw-r--r--arch/xtensa/kernel/setup.c21
1 files changed, 9 insertions, 12 deletions
diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index fc31ec1..65974a8 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -219,9 +219,13 @@ static int __init parse_bootparam(const bp_tag_t* tag)
}
#ifdef CONFIG_OF
+bool __initdata dt_memory_scan = false;
void __init early_init_dt_add_memory_arch(u64 base, u64 size)
{
+ if (!dt_memory_scan)
+ return;
+
size &= PAGE_MASK;
add_sysmem_bank(MEMORY_TYPE_CONVENTIONAL, base, base + size);
}
@@ -233,20 +237,13 @@ void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
void __init early_init_devtree(void *params)
{
- /* Setup flat device-tree pointer */
- initial_boot_params = params;
+ if (sysmem.nr_banks == 0)
+ dt_memory_scan = true;
- /* Retrieve various informations from the /chosen node of the
- * device-tree, including the platform type, initrd location and
- * size, TCE reserve, and more ...
- */
- if (!command_line[0])
- of_scan_flat_dt(early_init_dt_scan_chosen, command_line);
+ early_init_dt_scan(params);
- /* Scan memory nodes and rebuild MEMBLOCKs */
- of_scan_flat_dt(early_init_dt_scan_root, NULL);
- if (sysmem.nr_banks == 0)
- of_scan_flat_dt(early_init_dt_scan_memory, NULL);
+ if (!command_line[0])
+ strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
}
static int __init xtensa_device_probe(void)