feat(stm32mp2): add minimal support for BL31
Add the required files to compile BL31 on STM32MP2.
Update BL2 configuration to load BL31. The platform boots until BL31,
but stops here as no other binaries are loaded as DDR is not
initialized.
At runtime, BL31 will use only the first half of the SYSRAM, the upper
half will be used for non-secure DMA LLIs. To be sure nothing from this
area is still in the cache, invalidate the upper SYSRAM before enabling
BL31 cache. BL31 should then map only first half of the SYSRAM. But it
must temporarily map the upper half read-only, as this is where we will
retrieve BL2 parameters, used to fill registers for next boot stages.
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Maxime Méré <maxime.mere@foss.st.com>
Change-Id: Ie91527a7a26625624b4b3c65fb6a0ca9dd355dbd
diff --git a/plat/st/stm32mp2/include/platform_def.h b/plat/st/stm32mp2/include/platform_def.h
index 0f22a93..89ca032 100644
--- a/plat/st/stm32mp2/include/platform_def.h
+++ b/plat/st/stm32mp2/include/platform_def.h
@@ -8,6 +8,7 @@
#define PLATFORM_DEF_H
#include <arch.h>
+#include <drivers/arm/gic_common.h>
#include <lib/utils_def.h>
#include <plat/common/common_def.h>
@@ -32,9 +33,9 @@
#define PLATFORM_CORE_COUNT U(2)
#define PLATFORM_MAX_CPUS_PER_CLUSTER U(2)
-#define PLAT_MAX_PWR_LVL U(5)
-#define PLAT_MAX_CPU_SUSPEND_PWR_LVL U(5)
-#define PLAT_NUM_PWR_DOMAINS U(7)
+#define PLAT_MAX_PWR_LVL U(3)
+#define PLAT_MIN_SUSPEND_PWR_LVL U(2)
+#define PLAT_NUM_PWR_DOMAINS U(6)
/* Local power state for power domains in Run state. */
#define STM32MP_LOCAL_STATE_RUN U(0)
@@ -98,4 +99,59 @@
#define CACHE_WRITEBACK_SHIFT 6
#define CACHE_WRITEBACK_GRANULE (U(1) << CACHE_WRITEBACK_SHIFT)
+/*
+ * Secure Interrupt: based on the standard ARM mapping
+ */
+#define ARM_IRQ_SEC_PHY_TIMER U(29)
+
+#define ARM_IRQ_NON_SEC_SGI_0 U(0)
+
+#define ARM_IRQ_SEC_SGI_0 U(8)
+#define ARM_IRQ_SEC_SGI_1 U(9)
+#define ARM_IRQ_SEC_SGI_2 U(10)
+#define ARM_IRQ_SEC_SGI_3 U(11)
+#define ARM_IRQ_SEC_SGI_4 U(12)
+#define ARM_IRQ_SEC_SGI_5 U(13)
+#define ARM_IRQ_SEC_SGI_6 U(14)
+#define ARM_IRQ_SEC_SGI_7 U(15)
+
+/* Platform IRQ Priority */
+#define STM32MP_IRQ_SEC_SPI_PRIO U(0x10)
+
+/*
+ * Define a list of Group 1 Secure and Group 0 interrupts as per GICv3
+ * terminology. On a GICv2 system or mode, the lists will be merged and treated
+ * as Group 0 interrupts.
+ */
+#define PLATFORM_G1S_PROPS(grp) \
+ INTR_PROP_DESC(ARM_IRQ_SEC_PHY_TIMER, \
+ GIC_HIGHEST_SEC_PRIORITY, \
+ (grp), GIC_INTR_CFG_LEVEL), \
+ INTR_PROP_DESC(ARM_IRQ_SEC_SGI_1, \
+ GIC_HIGHEST_SEC_PRIORITY, \
+ (grp), GIC_INTR_CFG_EDGE), \
+ INTR_PROP_DESC(ARM_IRQ_SEC_SGI_2, \
+ GIC_HIGHEST_SEC_PRIORITY, \
+ (grp), GIC_INTR_CFG_EDGE), \
+ INTR_PROP_DESC(ARM_IRQ_SEC_SGI_3, \
+ GIC_HIGHEST_SEC_PRIORITY, \
+ (grp), GIC_INTR_CFG_EDGE), \
+ INTR_PROP_DESC(ARM_IRQ_SEC_SGI_4, \
+ GIC_HIGHEST_SEC_PRIORITY, \
+ (grp), GIC_INTR_CFG_EDGE), \
+ INTR_PROP_DESC(ARM_IRQ_SEC_SGI_5, \
+ GIC_HIGHEST_SEC_PRIORITY, \
+ (grp), GIC_INTR_CFG_EDGE), \
+ INTR_PROP_DESC(ARM_IRQ_SEC_SGI_7, \
+ GIC_HIGHEST_SEC_PRIORITY, \
+ (grp), GIC_INTR_CFG_EDGE)
+
+#define PLATFORM_G0_PROPS(grp) \
+ INTR_PROP_DESC(ARM_IRQ_SEC_SGI_0, \
+ GIC_HIGHEST_SEC_PRIORITY, \
+ (grp), GIC_INTR_CFG_EDGE), \
+ INTR_PROP_DESC(ARM_IRQ_SEC_SGI_6, \
+ GIC_HIGHEST_SEC_PRIORITY, \
+ (grp), GIC_INTR_CFG_EDGE)
+
#endif /* PLATFORM_DEF_H */