diff options
| -rw-r--r-- | arch/mips/include/asm/bootinfo.h | 18 | ||||
| -rw-r--r-- | arch/mips/mti-malta/malta-setup.c | 7 | ||||
| -rw-r--r-- | arch/mips/mti-sead3/sead3-setup.c | 5 |
3 files changed, 29 insertions, 1 deletions
diff --git a/arch/mips/include/asm/bootinfo.h b/arch/mips/include/asm/bootinfo.h index b603804caac5..9f67033961a6 100644 --- a/arch/mips/include/asm/bootinfo.h +++ b/arch/mips/include/asm/bootinfo.h @@ -144,4 +144,22 @@ static inline void plat_swiotlb_setup(void) {} #endif /* CONFIG_SWIOTLB */ +#ifdef CONFIG_USE_OF +/** + * plat_get_fdt() - Return a pointer to the platform's device tree blob + * + * This function provides a platform independent API to get a pointer to the + * flattened device tree blob. The interface between bootloader and kernel + * is not consistent across platforms so it is necessary to provide this + * API such that common startup code can locate the FDT. + * + * This is used by the KASLR code to get command line arguments and random + * seed from the device tree. Any platform wishing to use KASLR should + * provide this API and select SYS_SUPPORTS_RELOCATABLE. + * + * Return: Pointer to the flattened device tree blob. + */ +extern void *plat_get_fdt(void); +#endif /* CONFIG_USE_OF */ + #endif /* _ASM_BOOTINFO_H */ diff --git a/arch/mips/mti-malta/malta-setup.c b/arch/mips/mti-malta/malta-setup.c index 4740c82fb97a..33d5ff5069e5 100644 --- a/arch/mips/mti-malta/malta-setup.c +++ b/arch/mips/mti-malta/malta-setup.c @@ -248,10 +248,15 @@ static void __init bonito_quirks_setup(void) #endif } +void __init *plat_get_fdt(void) +{ + return (void *)__dtb_start; +} + void __init plat_mem_setup(void) { unsigned int i; - void *fdt = __dtb_start; + void *fdt = plat_get_fdt(); fdt = malta_dt_shim(fdt); __dt_setup_arch(fdt); diff --git a/arch/mips/mti-sead3/sead3-setup.c b/arch/mips/mti-sead3/sead3-setup.c index e43f4801a245..9f2f9b2b23ce 100644 --- a/arch/mips/mti-sead3/sead3-setup.c +++ b/arch/mips/mti-sead3/sead3-setup.c @@ -83,6 +83,11 @@ static void __init parse_memsize_param(void) } } +void __init *plat_get_fdt(void) +{ + return (void *)__dtb_start; +} + void __init plat_mem_setup(void) { /* allow command line/bootloader env to override memory size in DT */ |