Tegra: memctrl_v2: pack TZDRAM base into SCRATCH54_LO
This patch moves the TZDRAM base address to SCRATCH55_LO due
to security concerns. The HI and LO address bits are packed
into SCRATCH55_LO for the warmboot firmware to restore.
SCRATCH54_HI is still being used for backward compatibility,
but would be removed eventually.
The scratch registers are populated as:
* RSV55_0 = CFG1[12:0] | CFG0[31:20]
* RSV55_1 = CFG3[1:0]
* RSV54_1 = CFG1[12:0]
Change-Id: Idc20d165d8117488010fcc8dfd946f7ad475da58
Signed-off-by: Harvey Hsieh <hhsieh@nvidia.com>
diff --git a/plat/nvidia/tegra/include/t186/tegra_def.h b/plat/nvidia/tegra/include/t186/tegra_def.h
index 19d1250..20a7994 100644
--- a/plat/nvidia/tegra/include/t186/tegra_def.h
+++ b/plat/nvidia/tegra/include/t186/tegra_def.h
@@ -141,6 +141,10 @@
#define MC_SECURITY_CFG1_0 U(0x74)
#define MC_SECURITY_CFG3_0 U(0x9BC)
+#define MC_SECURITY_BOM_MASK (U(0xFFF) << 20)
+#define MC_SECURITY_SIZE_MB_MASK (U(0x1FFF) << 0)
+#define MC_SECURITY_BOM_HI_MASK (U(0x3) << 0)
+
/* Video Memory carveout configuration registers */
#define MC_VIDEO_PROTECT_BASE_HI U(0x978)
#define MC_VIDEO_PROTECT_BASE_LO U(0x648)