OMAP3 PM: off-mode support for HS/EMU devices
For HS/EMU devices, some additional resources need to be
saved/restored for off-mode support. Namely, saving the secure RAM
and a pointer to it in the scratchpad.
Signed-off-by: Tero Kristo <tero.kristo@nokia.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index 3ea417d..b84cff7 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -85,6 +85,8 @@
u32 block_size;
};
+void *omap3_secure_ram_storage;
+
/*
* This is used to store ARM registers in SDRAM before attempting
* an MPU OFF. The save and restore happens from the SRAM sleep code.
@@ -209,7 +211,11 @@
scratchpad_contents.boot_config_ptr = 0x0;
scratchpad_contents.public_restore_ptr =
virt_to_phys(get_restore_pointer());
- scratchpad_contents.secure_ram_restore_ptr = 0x0;
+ if (omap_type() == OMAP2_DEVICE_TYPE_GP)
+ scratchpad_contents.secure_ram_restore_ptr = 0x0;
+ else
+ scratchpad_contents.secure_ram_restore_ptr =
+ (u32) __pa(omap3_secure_ram_storage);
scratchpad_contents.sdrc_module_semaphore = 0x0;
scratchpad_contents.prcm_block_offset = 0x2C;
scratchpad_contents.sdrc_block_offset = 0x64;