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| author | Santosh Shilimkar <santosh.shilimkar@ti.com> | 2011-06-06 20:28:23 +0530 |
|---|---|---|
| committer | Kevin Hilman <khilman@ti.com> | 2011-12-08 11:29:00 -0800 |
| commit | 259ee57a8cda5760dd3e803c5271a6327e1f38ac (patch) | |
| tree | 371adb6d30774b636403279eacaaae4297b31b4f /arch/arm/plat-omap | |
| parent | ba9456ac9c72a7a5d4d59340aba4259351832521 (diff) | |
| download | linux-259ee57a8cda5760dd3e803c5271a6327e1f38ac.tar.gz linux-259ee57a8cda5760dd3e803c5271a6327e1f38ac.tar.bz2 linux-259ee57a8cda5760dd3e803c5271a6327e1f38ac.zip | |
ARM: OMAP: PM: Add support to allocate the memory for secure RAM
Allocate the memory to save secure ram context which needs
to be done when MPU is hitting OFF mode.
The ROM code expects a physical address to this memory
and hence use memblock APIs to reserve this memory as part
of .reserve() callback. Maximum size as per secure RAM requirements
is allocated.
To keep omap1 build working, omap-secure.h file is created
under plat-omap directory.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Jean Pihet <j-pihet@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Tested-by: Vishwanath BS <vishwanath.bs@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Diffstat (limited to 'arch/arm/plat-omap')
| -rw-r--r-- | arch/arm/plat-omap/common.c | 3 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/omap-secure.h | 13 |
2 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c index 2ee6341fffdb..06383b51e655 100644 --- a/arch/arm/plat-omap/common.c +++ b/arch/arm/plat-omap/common.c @@ -22,6 +22,8 @@ #include <plat/vram.h> #include <plat/dsp.h> +#include <plat/omap-secure.h> + #define NO_LENGTH_CHECK 0xffffffff @@ -66,6 +68,7 @@ void __init omap_reserve(void) omapfb_reserve_sdram_memblock(); omap_vram_reserve_sdram_memblock(); omap_dsp_reserve_sdram_memblock(); + omap_secure_ram_reserve_memblock(); } void __init omap_init_consistent_dma_size(void) diff --git a/arch/arm/plat-omap/include/plat/omap-secure.h b/arch/arm/plat-omap/include/plat/omap-secure.h new file mode 100644 index 000000000000..64f9d1c7f1bb --- /dev/null +++ b/arch/arm/plat-omap/include/plat/omap-secure.h @@ -0,0 +1,13 @@ +#ifndef __OMAP_SECURE_H__ +#define __OMAP_SECURE_H__ + +#include <linux/types.h> + +#ifdef CONFIG_ARCH_OMAP2PLUS +extern int omap_secure_ram_reserve_memblock(void); +#else +static inline void omap_secure_ram_reserve_memblock(void) +{ } +#endif + +#endif /* __OMAP_SECURE_H__ */ |