soc: nordic: nrf54h: set DMASEC for CCM030 if enabled

DMASEC is set to non-secure by default, which prevents CCM from accessing secure memory. Change DMASEC to secure. Signed-off-by: Gerard Marull-Paretas <[email protected]>
grevaillot · Apr 5, 2024 · 37f9958 · 37f9958
1 parent 17ed60f
commit 37f9958
Showing 1 changed file with 17 additions and 0 deletions.
diff --git a/soc/nordic/nrf54h/soc.c b/soc/nordic/nrf54h/soc.c
@@ -12,6 +12,7 @@
 
 #include <hal/nrf_hsfll.h>
 #include <hal/nrf_lrcconf.h>
+#include <hal/nrf_spu.h>
 #include <soc/nrfx_coredep.h>
 
 LOG_MODULE_REGISTER(soc, CONFIG_SOC_LOG_LEVEL);
@@ -26,6 +27,12 @@ LOG_MODULE_REGISTER(soc, CONFIG_SOC_LOG_LEVEL);
 	DT_REG_ADDR(DT_PHANDLE_BY_NAME(node_id, nordic_ficrs, name)) +         \
 		DT_PHA_BY_NAME(node_id, nordic_ficrs, name, offset)
 
+#define SPU_INSTANCE_GET(p_addr)                                               \
+	((NRF_SPU_Type *)((p_addr) & (ADDRESS_REGION_Msk |                     \
+				      ADDRESS_SECURITY_Msk |                   \
+				      ADDRESS_DOMAIN_Msk |                     \
+				      ADDRESS_BUS_Msk)))
+
 static void power_domain_init(void)
 {
 	/*
@@ -83,6 +90,16 @@ static int nordicsemi_nrf54h_init(void)
 
 	trim_hsfll();
 
+#if DT_NODE_HAS_STATUS(DT_NODELABEL(ccm030), okay)
+	/* DMASEC is set to non-secure by default, which prevents CCM from
+	 * accessing secure memory. Change DMASEC to secure.
+	 */
+	uint32_t ccm030_addr = DT_REG_ADDR(DT_NODELABEL(ccm030));
+	NRF_SPU_Type *spu = SPU_INSTANCE_GET(ccm030_addr);
+
+	nrf_spu_periph_perm_dmasec_set(spu, nrf_address_slave_get(ccm030_addr), true);
+#endif
+
 	return 0;
 }