plat-sam: set QSPI memories as non secure

When left unconfigured, the QSPI memories are assigned to the secure
world. However, the controller is assigned to normal world and Linux
expects to use QPSI memories with it which will fail because they are
not accessible. Configure them to be accessible by the normal world in
order to let Linux handle the QSPI controller properly.

Acked-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Clément Léger <clement.leger@bootlin.com>

core/arch/arm/plat-sam/main.c

@@ -176,8 +176,20 @@ static void matrix_configure_slave_h64mx(void)
 					ssr_setting);
 
 	/* 11:  Internal SRAM 128K (Cache L2): Default */
-	/* 12:  QSPI0: Default */
-	/* 13:  QSPI1: Default */
+
+	/* 12:  QSPI0: Normal world */
+	/* 13:  QSPI1: Normal world */
+	srtop_setting = MATRIX_SRTOP(0, MATRIX_SRTOP_VALUE_128M);
+	sasplit_setting = MATRIX_SASPLIT(0, MATRIX_SASPLIT_VALUE_128M);
+	ssr_setting = MATRIX_LANSECH_NS(0) | MATRIX_RDNSECH_NS(0) |
+		      MATRIX_WRNSECH_NS(0);
+
+	matrix_configure_slave_security(matrix64_base(), H64MX_SLAVE_QSPI0,
+					srtop_setting, sasplit_setting,
+					ssr_setting);
+	matrix_configure_slave_security(matrix64_base(), H64MX_SLAVE_QSPI1,
+					srtop_setting, sasplit_setting,
+					ssr_setting);
 	/* 14:  AESB: Default */
 }