diff options
Diffstat (limited to 'arch/arm/mach-omap2/omap-secure.c')
| -rw-r--r-- | arch/arm/mach-omap2/omap-secure.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap-secure.c b/arch/arm/mach-omap2/omap-secure.c index e5a606e59b1e..69f3c72d959b 100644 --- a/arch/arm/mach-omap2/omap-secure.c +++ b/arch/arm/mach-omap2/omap-secure.c @@ -13,11 +13,14 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/io.h> +#include <linux/memblock.h> #include <asm/cacheflush.h> #include <mach/omap-secure.h> +static phys_addr_t omap_secure_memblock_base; + /** * omap_sec_dispatcher: Routine to dispatch low power secure * service routines @@ -50,3 +53,29 @@ u32 omap_secure_dispatcher(u32 idx, u32 flag, u32 nargs, u32 arg1, u32 arg2, return ret; } + +/* Allocate the memory to save secure ram */ +int __init omap_secure_ram_reserve_memblock(void) +{ + phys_addr_t paddr; + u32 size = OMAP_SECURE_RAM_STORAGE; + + size = ALIGN(size, SZ_1M); + paddr = memblock_alloc(size, SZ_1M); + if (!paddr) { + pr_err("%s: failed to reserve %x bytes\n", + __func__, size); + return -ENOMEM; + } + memblock_free(paddr, size); + memblock_remove(paddr, size); + + omap_secure_memblock_base = paddr; + + return 0; +} + +phys_addr_t omap_secure_ram_mempool_base(void) +{ + return omap_secure_memblock_base; +} |