GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
commit b1928b41c0
21813 changed files with 4413081 additions and 0 deletions
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) Lotus. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+#include <assert.h>
+#include <bl_common.h>
+#include <common_def.h>
+#include <console.h>
+#include <debug.h>
+#include <generic_delay_timer.h>
+#include <mmio.h>
+#include <pl011.h>
+#include <plat_private.h>
+#include <platform.h>
+#include <plat_lotus.h>
+
+struct bl31_params {
+       param_header_t h;
+       image_info_t *bl31_image_info;
+       entry_point_info_t *bl32_ep_info;
+       image_info_t *bl32_image_info;
+       entry_point_info_t *bl33_ep_info;
+       image_info_t *bl33_image_info;
+};
+
+
+static entry_point_info_t bl33_image_ep_info, bl32_image_ep_info;
+
+/*******************************************************************************
+ * This variable holds the non-secure image entry address
+ ******************************************************************************/
+extern uint64_t ns_image_entrypoint;
+
+/*******************************************************************************
+ * Return a pointer to the 'entry_point_info' structure of the next image for
+ * security state specified. BL33 corresponds to the non-secure image type
+ * while BL32 corresponds to the secure image type.
+ ******************************************************************************/
+entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
+{
+	entry_point_info_t *next_image_info;
+
+	assert(sec_state_is_valid(type));
+	next_image_info = (type == NON_SECURE)
+			? &bl33_image_ep_info : &bl32_image_ep_info;
+	/*
+	 * None of the images on the ARM development platforms can have 0x0
+	 * as the entrypoint
+	 */
+	if (next_image_info->pc)
+		return next_image_info;
+	else
+		return NULL;
+}
+
+/*******************************************************************************
+ * Perform any BL31 specific platform actions. Populate the BL33 and BL32 image
+ * info.
+ ******************************************************************************/
+void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
+				u_register_t arg2, u_register_t arg3)
+{
+	struct bl31_params *from_bl2 = (struct bl31_params *)arg0;
+	uint32_t cpu_ver;
+
+	/*
+	 * Configure the UART port to be used as the console
+	 */
+	lotus_console_boot_init();
+
+	cpu_ver = cpu_get_rev_var();
+
+	INFO("BL31 Early setup\n");
+
+	INFO("CPU Cortex-A55 r%dp%d\n", (cpu_ver >> 4) & 0xf, cpu_ver & 0xf);
+	/*
+	 * Copy BL3-3, BL3-2 entry point information.
+	 */
+	bl33_image_ep_info = *from_bl2->bl33_ep_info;
+	bl32_image_ep_info = *from_bl2->bl32_ep_info;
+
+	SET_SECURITY_STATE(bl33_image_ep_info.h.attr,
+			NON_SECURE);
+
+	SET_SECURITY_STATE(bl32_image_ep_info.h.attr,
+			SECURE);
+
+	INFO("--%s %d\n", __func__, __LINE__);
+}
+
+/*******************************************************************************
+ * Initialize the gic, configure the SCR.
+ ******************************************************************************/
+void bl31_platform_setup(void)
+{
+	INFO("BL31 Platform setup\n");
+	plat_lotus_pmc_init();
+	plat_lotus_gic_driver_init();
+	plat_lotus_gic_init();
+	plat_delay_timer_init();
+	INFO("--%s %d\n", __func__, __LINE__);
+}
+/*******************************************************************************
+ * Perform the very early platform specific architectural setup here. At the
+ * moment this only intializes the mmu in a quick and dirty way.
+ ******************************************************************************/
+void bl31_plat_arch_setup(void)
+{
+	INFO("BL31 Arch setup\n");
+	configure_mmu_el3(BL31_START,
+			       BL31_END - BL31_START,
+			       BL_CODE_BASE,
+			       BL_CODE_END);
+
+	INFO("--%s %d\n", __func__, __LINE__);
+}
+