[U-Boot] [PATCH v1 3/4] jetson-tk1: Add PSCI configuration options and reserve secure code

Ian Campbell
2015-01-13T19:45:59Z

The secure world code is relocated to the MB just below the top of 4G, we
reserve it in the FDT (by setting CONFIG_ARMV7_SECURE_RESERVE_SIZE) but it is
not protected in h/w. See next patch.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
---
(This was originally commit ed48864fb69d352291ed75d50a215d60864b021b in
https://github.com/thierryreding/u-boot.git#staging/work but required
rebasing/reworking for Kconfig changes and addition of secure RAM fdt
reservation, not a lot of the original remains)
---
arch/arm/cpu/armv7/tegra124/Kconfig | 2 ++
include/configs/jetson-tk1.h | 5 +++++
2 files changed, 7 insertions(+)

diff --git a/arch/arm/cpu/armv7/tegra124/Kconfig b/arch/arm/cpu/armv7/tegra124/Kconfig
index 88f627c..5114299 100644
--- a/arch/arm/cpu/armv7/tegra124/Kconfig
+++ b/arch/arm/cpu/armv7/tegra124/Kconfig
@@ -5,6 +5,8 @@ choice

config TARGET_JETSON_TK1
bool "NVIDIA Tegra124 Jetson TK1 board"
+ select CPU_V7_HAS_NONSEC if !SPL_BUILD
+ select CPU_V7_HAS_VIRT if !SPL_BUILD

config TARGET_NYAN_BIG
bool "Google/NVIDIA Nyan-big Chrombook"
diff --git a/include/configs/jetson-tk1.h b/include/configs/jetson-tk1.h
index 0a79c7c..80c2952 100644
--- a/include/configs/jetson-tk1.h
+++ b/include/configs/jetson-tk1.h
@@ -81,4 +81,9 @@
#include "tegra-common-usb-gadget.h"
#include "tegra-common-post.h"

+#define CONFIG_ARMV7_PSCI 1
+/* Reserve top 1M for secure RAM */
+#define CONFIG_ARMV7_SECURE_BASE 0xfff00000
+#define CONFIG_ARMV7_SECURE_RESERVE_SIZE 0x00100000
+
#endif /* __CONFIG_H */
--
2.1.3