feat(intel): extending to support SMMU in FCS

This patch is to extend support SMMU in FCS GET_DIGEST, MAC_VERIFY,
ECDSA_SHA2_DATA_SIGNING and ECDSA_SHA2_DATA_SIGNATURE_VERIFY.
It also will change to use asynchronous mailbox send command to improve
fcs_client timing performance.
Increase the SIP_SVC_VERSION_MAJOR because SMMU support is not backward
compatible.
Increase the SIP_SVC_VERSION_MINOR because 8 news function IDs are
introduced.

Signed-off-by: Sieu Mun Tang <sieu.mun.tang@intel.com>
Change-Id: I15e619e246531b065451f9b201646f3c50e26307
diff --git a/plat/intel/soc/agilex/bl31_plat_setup.c b/plat/intel/soc/agilex/bl31_plat_setup.c
index b1b9514..26ed7ef 100644
--- a/plat/intel/soc/agilex/bl31_plat_setup.c
+++ b/plat/intel/soc/agilex/bl31_plat_setup.c
@@ -17,6 +17,7 @@
 #include "ccu/ncore_ccu.h"
 #include "socfpga_mailbox.h"
 #include "socfpga_private.h"
+#include "socfpga_sip_svc.h"
 
 static entry_point_info_t bl32_image_ep_info;
 static entry_point_info_t bl33_image_ep_info;
@@ -35,6 +36,25 @@
 		return NULL;
 }
 
+void setup_smmu_secure_context(void)
+{
+	/*
+	 * Program SCR0 register (0xFA000000)
+	 * to set SMCFCFG bit[21] to 0x1 which raise stream match conflict fault
+	 * to set CLIENTPD bit[0] to 0x0 which enables SMMU for secure context
+	 */
+	mmio_write_32(0xFA000000, 0x00200000);
+
+	/*
+	 * Program SCR1 register (0xFA000004)
+	 * to set NSNUMSMRGO bit[14:8] to 0x4 which stream mapping register
+	 * for non-secure context and the rest will be secure context
+	 * to set NSNUMCBO bit[5:0] to 0x4 which allocate context bank
+	 * for non-secure context and the rest will be secure context
+	 */
+	mmio_write_32(0xFA000004, 0x00000404);
+}
+
 void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
 				u_register_t arg2, u_register_t arg3)
 {
@@ -109,6 +129,7 @@
 	gicv2_distif_init();
 	gicv2_pcpu_distif_init();
 	gicv2_cpuif_enable();
+	setup_smmu_secure_context();
 
 	/* Signal secondary CPUs to jump to BL31 (BL2 = U-boot SPL) */
 	mmio_write_64(PLAT_CPU_RELEASE_ADDR,