plat/arm: Get the base address of nv-counters from device tree
Using the Fconf, register base address of the various nv-counters
(currently, trusted, non-trusted nv-counters) are moved to the
device tree and retrieved during run-time. This feature is
enabled using the build option COT_DESC_IN_DTB.
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
Change-Id: I236f532e63cea63b179f60892cb406fc05cd5830
diff --git a/plat/arm/board/common/board_arm_trusted_boot.c b/plat/arm/board/common/board_arm_trusted_boot.c
index 38cbba9..8239e0d 100644
--- a/plat/arm/board/common/board_arm_trusted_boot.c
+++ b/plat/arm/board/common/board_arm_trusted_boot.c
@@ -12,7 +12,9 @@
#include <drivers/arm/cryptocell/cc_rotpk.h>
#include <drivers/delay_timer.h>
#include <lib/cassert.h>
+#include <lib/fconf/fconf.h>
#include <plat/arm/common/plat_arm.h>
+#include <plat/arm/common/fconf_nv_cntr_getter.h>
#include <plat/common/common_def.h>
#include <plat/common/platform.h>
#include <platform_def.h>
@@ -29,6 +31,16 @@
#endif
#endif
+#if COT_DESC_IN_DTB && defined(IMAGE_BL2)
+uintptr_t nv_cntr_base_addr[MAX_NV_CTR_IDS];
+#else
+uintptr_t nv_cntr_base_addr[MAX_NV_CTR_IDS] = {
+ TFW_NVCTR_BASE,
+ NTFW_CTR_BASE
+};
+#endif
+
+
/* Weak definition may be overridden in specific platform */
#pragma weak plat_get_nv_ctr
#pragma weak plat_set_nv_ctr
@@ -183,9 +195,11 @@
oid = (const char *)cookie;
if (strcmp(oid, TRUSTED_FW_NVCOUNTER_OID) == 0) {
- nv_ctr_addr = (uint32_t *)TFW_NVCTR_BASE;
+ nv_ctr_addr = (uint32_t *)FCONF_GET_PROPERTY(cot, nv_cntr_addr,
+ TRUSTED_NV_CTR_ID);
} else if (strcmp(oid, NON_TRUSTED_FW_NVCOUNTER_OID) == 0) {
- nv_ctr_addr = (uint32_t *)NTFW_CTR_BASE;
+ nv_ctr_addr = (uint32_t *)FCONF_GET_PROPERTY(cot, nv_cntr_addr,
+ NON_TRUSTED_NV_CTR_ID);
} else {
return 1;
}
diff --git a/plat/arm/board/fvp/fvp_trusted_boot.c b/plat/arm/board/fvp/fvp_trusted_boot.c
index 8825198..1ea37f7 100644
--- a/plat/arm/board/fvp/fvp_trusted_boot.c
+++ b/plat/arm/board/fvp/fvp_trusted_boot.c
@@ -9,7 +9,9 @@
#include <string.h>
#include <lib/mmio.h>
+#include <lib/fconf/fconf.h>
#include <plat/arm/common/plat_arm.h>
+#include <plat/arm/common/fconf_nv_cntr_getter.h>
#include <plat/common/platform.h>
#include <platform_def.h>
#include <tools_share/tbbr_oid.h>
@@ -50,9 +52,11 @@
oid = (const char *)cookie;
if (strcmp(oid, TRUSTED_FW_NVCOUNTER_OID) == 0) {
- nv_ctr_addr = TFW_NVCTR_BASE;
+ nv_ctr_addr = FCONF_GET_PROPERTY(cot, nv_cntr_addr,
+ TRUSTED_NV_CTR_ID);
} else if (strcmp(oid, NON_TRUSTED_FW_NVCOUNTER_OID) == 0) {
- nv_ctr_addr = NTFW_CTR_BASE;
+ nv_ctr_addr = FCONF_GET_PROPERTY(cot, nv_cntr_addr,
+ NON_TRUSTED_NV_CTR_ID);
} else {
return 1;
}
diff --git a/plat/arm/board/fvp/platform.mk b/plat/arm/board/fvp/platform.mk
index a7d1825..b6a9dae 100644
--- a/plat/arm/board/fvp/platform.mk
+++ b/plat/arm/board/fvp/platform.mk
@@ -168,6 +168,9 @@
${FVP_SECURITY_SOURCES}
+ifeq (${COT_DESC_IN_DTB},1)
+BL2_SOURCES += plat/arm/common/fconf/fconf_nv_cntr_getter.c
+endif
ifeq (${BL2_AT_EL3},1)
BL2_SOURCES += plat/arm/board/fvp/${ARCH}/fvp_helpers.S \