From e6ce1324e4f08b0d984340201a125806dae0e9a6 Mon Sep 17 00:00:00 2001 From: Stephen Neuendorffer Date: Thu, 18 Nov 2010 15:54:56 -0800 Subject: of/flattree: Add Kconfig for EARLY_FLATTREE The device tree code is now in two pieces: some which can be used generically on any platform which selects CONFIG_OF_FLATTREE, and some early which is used at boot time on only a few architectures. This patch segregates the early code so that only those architectures which care about it need compile it. This also means that some of the requirements in the early code (such as a cmd_line variable) that most architectures (e.g. X86) don't provide can be ignored. Signed-off-by: Stephen Neuendorffer [grant.likely@secretlab.ca: remove extra blank line addition] [grant.likely@secretlab.ca: fixed incorrect #ifdef CONFIG_EARLY_FLATTREE check] [grant.likely@secretlab.ca: Made OF_EARLY_FLATTREE select instead of depend on OF_FLATTREE] Signed-off-by: Grant Likely diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index 387d5ff..5f5018a 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -14,7 +14,7 @@ config MICROBLAZE select HAVE_DMA_API_DEBUG select TRACING_SUPPORT select OF - select OF_FLATTREE + select OF_EARLY_FLATTREE config SWAP def_bool n diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 0a9b5b8..f489ec3 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -2218,7 +2218,7 @@ config SECCOMP config USE_OF bool "Flattened Device Tree support" select OF - select OF_FLATTREE + select OF_EARLY_FLATTREE help Include support for flattened device tree machine descriptions. diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index e625e9e..48fb479 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -116,7 +116,7 @@ config PPC bool default y select OF - select OF_FLATTREE + select OF_EARLY_FLATTREE select HAVE_FTRACE_MCOUNT_RECORD select HAVE_DYNAMIC_FTRACE select HAVE_FUNCTION_TRACER diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig index e4b93a0..3c6e100 100644 --- a/drivers/of/Kconfig +++ b/drivers/of/Kconfig @@ -19,6 +19,10 @@ config OF_FLATTREE bool select DTC +config OF_EARLY_FLATTREE + bool + select OF_FLATTREE + config OF_PROMTREE bool diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index c1360e0..2ebacf1 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -27,6 +27,8 @@ int __initdata dt_root_size_cells; struct boot_param_header *initial_boot_params; +#ifdef CONFIG_OF_EARLY_FLATTREE + char *find_flat_dt_string(u32 offset) { return ((char *)initial_boot_params) + @@ -604,3 +606,5 @@ void __init unflatten_device_tree(void) pr_debug(" <- unflatten_device_tree()\n"); } + +#endif /* CONFIG_OF_EARLY_FLATTREE */ -- cgit v0.10.2