uniphier: support Socionext UniPhier platform
Initial commit for Socionext UniPhier SoC support. BL1, Bl2, and
BL31 are supported. Refer to docs/plat/socionext-uniphier.md for
more detais.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/plat/socionext/uniphier/uniphier_bl2_setup.c b/plat/socionext/uniphier/uniphier_bl2_setup.c
new file mode 100644
index 0000000..b83e700
--- /dev/null
+++ b/plat/socionext/uniphier/uniphier_bl2_setup.c
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <bl_common.h>
+#include <debug.h>
+#include <desc_image_load.h>
+#include <errno.h>
+#include <io/io_storage.h>
+#include <platform.h>
+#include <platform_def.h>
+#include <xlat_tables_v2.h>
+
+#include "uniphier.h"
+
+static meminfo_t uniphier_bl2_tzram_layout __aligned(CACHE_WRITEBACK_GRANULE);
+static int uniphier_bl2_kick_scp;
+
+void bl2_early_platform_setup(meminfo_t *mem_layout)
+{
+ uniphier_bl2_tzram_layout = *mem_layout;
+
+ uniphier_console_setup();
+}
+
+static const struct mmap_region uniphier_bl2_mmap[] = {
+ /* for SCP, BL33 */
+ MAP_REGION_FLAT(UNIPHIER_NS_DRAM_BASE, UNIPHIER_NS_DRAM_SIZE,
+ MT_MEMORY | MT_RW | MT_NS),
+ { .size = 0 },
+};
+
+void bl2_plat_arch_setup(void)
+{
+ unsigned int soc;
+ int skip_scp = 0;
+ int ret;
+
+ uniphier_mmap_setup(UNIPHIER_SEC_DRAM_BASE, UNIPHIER_SEC_DRAM_SIZE,
+ uniphier_bl2_mmap);
+ enable_mmu_el1(0);
+
+ soc = uniphier_get_soc_id();
+ if (soc == UNIPHIER_SOC_UNKNOWN) {
+ ERROR("unsupported SoC\n");
+ plat_error_handler(-ENOTSUP);
+ }
+
+ ret = uniphier_io_setup(soc);
+ if (ret) {
+ ERROR("failed to setup io devices\n");
+ plat_error_handler(ret);
+ }
+
+ switch (uniphier_get_boot_master(soc)) {
+ case UNIPHIER_BOOT_MASTER_THIS:
+ INFO("Booting from this SoC\n");
+ skip_scp = 1;
+ break;
+ case UNIPHIER_BOOT_MASTER_SCP:
+ INFO("Booting from on-chip SCP\n");
+ if (uniphier_scp_is_running()) {
+ INFO("SCP is already running. SCP_BL2 load will be skipped.\n");
+ skip_scp = 1;
+ }
+
+ /*
+ * SCP must be kicked every time even if it is already running
+ * because it polls this event after the reboot of the backend.
+ */
+ uniphier_bl2_kick_scp = 1;
+ break;
+ case UNIPHIER_BOOT_MASTER_EXT:
+ INFO("Booting from external SCP\n");
+ skip_scp = 1;
+ break;
+ default:
+ plat_error_handler(-ENOTSUP);
+ }
+
+ if (!skip_scp) {
+ ret = uniphier_check_image(SCP_BL2_IMAGE_ID);
+ if (ret) {
+ WARN("SCP_BL2 image not found. SCP_BL2 load will be skipped.\n");
+ WARN("You must setup SCP by other means.\n");
+ skip_scp = 1;
+ uniphier_bl2_kick_scp = 0;
+ }
+ }
+
+ if (skip_scp)
+ uniphier_image_descs_fixup();
+}
+
+void bl2_platform_setup(void)
+{
+}
+
+void plat_flush_next_bl_params(void)
+{
+ flush_bl_params_desc();
+}
+
+bl_load_info_t *plat_get_bl_image_load_info(void)
+{
+ return get_bl_load_info_from_mem_params_desc();
+}
+
+bl_params_t *plat_get_next_bl_params(void)
+{
+ return get_next_bl_params_from_mem_params_desc();
+}
+
+int bl2_plat_handle_post_image_load(unsigned int image_id)
+{
+ if (image_id == SCP_BL2_IMAGE_ID && uniphier_bl2_kick_scp)
+ uniphier_scp_start();
+
+ return 0;
+}