feat(imx8mn): enable Trusty OS for imx8mn
Add trusty support for imx8mn, default load address and
size of trusty are 0xbe000000 and 0x2000000.
Signed-off-by: Ji Luo <ji.luo@nxp.com>
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Change-Id: I63fd5159027d7400b8c6bfc03193dd1330c43140
diff --git a/plat/imx/imx8m/imx8mn/imx8mn_bl31_setup.c b/plat/imx/imx8m/imx8mn/imx8mn_bl31_setup.c
index e1bcd50..7e3a0b6 100644
--- a/plat/imx/imx8m/imx8mn/imx8mn_bl31_setup.c
+++ b/plat/imx/imx8m/imx8mn/imx8mn_bl31_setup.c
@@ -28,6 +28,8 @@
#include <platform_def.h>
#include <plat_imx8.h>
+#define TRUSTY_PARAMS_LEN_BYTES (4096*2)
+
static const mmap_region_t imx_mmap[] = {
GIC_MAP, AIPS_MAP, OCRAM_S_MAP, DDRC_MAP, {0},
};
@@ -151,13 +153,18 @@
bl33_image_ep_info.spsr = get_spsr_for_bl33_entry();
SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE);
-#ifdef SPD_opteed
+#if defined(SPD_opteed) || defined(SPD_trusty)
/* Populate entry point information for BL32 */
SET_PARAM_HEAD(&bl32_image_ep_info, PARAM_EP, VERSION_1, 0);
SET_SECURITY_STATE(bl32_image_ep_info.h.attr, SECURE);
bl32_image_ep_info.pc = BL32_BASE;
bl32_image_ep_info.spsr = 0;
+#ifdef SPD_trusty
+ bl32_image_ep_info.args.arg0 = BL32_SIZE;
+ bl32_image_ep_info.args.arg1 = BL32_BASE;
+#endif
+
/* Pass TEE base and size to bl33 */
bl33_image_ep_info.args.arg1 = BL32_BASE;
bl33_image_ep_info.args.arg2 = BL32_SIZE;
@@ -177,6 +184,10 @@
(BL_COHERENT_RAM_END - BL_COHERENT_RAM_BASE),
MT_DEVICE | MT_RW | MT_SECURE);
#endif
+
+ /* Map TEE memory */
+ mmap_add_region(BL32_BASE, BL32_BASE, BL32_SIZE, MT_MEMORY | MT_RW);
+
mmap_add(imx_mmap);
init_xlat_tables();
@@ -211,3 +222,12 @@
{
return COUNTER_FREQUENCY;
}
+
+#ifdef SPD_trusty
+void plat_trusty_set_boot_args(aapcs64_params_t *args)
+{
+ args->arg0 = BL32_SIZE;
+ args->arg1 = BL32_BASE;
+ args->arg2 = TRUSTY_PARAMS_LEN_BYTES;
+}
+#endif