From: Ian Campbell <i...@hellion.org.uk>
In this case the secure code lives in RAM, and hence needs to be reserved, but
it has been relocated, so the reservation of __secure_start does not apply.
Add support for setting CONFIG_ARMV7_SECURE_RESERVE_SIZE to reserve such a
region.
This will be used in a subsequent patch for Jetson-TK1
Signed-off-by: Ian Campbell <i...@hellion.org.uk>
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
---
arch/arm/cpu/armv7/virt-dt.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm/cpu/armv7/virt-dt.c b/arch/arm/cpu/armv7/virt-dt.c
index ad19e4c..eb95031 100644
--- a/arch/arm/cpu/armv7/virt-dt.c
+++ b/arch/arm/cpu/armv7/virt-dt.c
@@ -96,6 +96,11 @@ int armv7_update_dt(void *fdt)
/* secure code lives in RAM, keep it alive */
fdt_add_mem_rsv(fdt, (unsigned long)__secure_start,
__secure_end - __secure_start);
+#elif defined(CONFIG_ARMV7_SECURE_RESERVE_SIZE)
+ /* secure code has been relocated into RAM carveout, keep it alive */
+ fdt_add_mem_rsv(fdt,
+ CONFIG_ARMV7_SECURE_BASE,
+ CONFIG_ARMV7_SECURE_RESERVE_SIZE);
#endif
return fdt_psci(fdt);
--
2.1.4
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