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

2026-09-06 03:52:57 +08:00
commit b1928b41c0
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+/*
+ * Copyright (c) 2017-2021, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+
+#include <platform_def.h>
+
+#include <arch_helpers.h>
+#include <common/bl_common.h>
+#include <common/debug.h>
+#include <common/tbbr/tbbr_img_def.h>
+#include <drivers/arm/pl011.h>
+#include <drivers/arm/pl061_gpio.h>
+#include <drivers/generic_delay_timer.h>
+#include <drivers/mmc.h>
+#include <drivers/synopsys/dw_mmc.h>
+#include <lib/mmio.h>
+#include <plat/common/platform.h>
+
+#include "hi3798cv200.h"
+#include "plat_private.h"
+
+/* Data structure which holds the extents of the trusted RAM for BL1 */
+static meminfo_t bl1_tzram_layout;
+static meminfo_t bl2_tzram_layout;
+static console_t console;
+
+#if !POPLAR_RECOVERY
+static struct mmc_device_info mmc_info;
+#endif
+
+/*
+ * Cannot use default weak implementation in bl1_main.c because BL1 RW data is
+ * not at the top of the secure memory.
+ */
+int bl1_plat_handle_post_image_load(unsigned int image_id)
+{
+	image_desc_t *image_desc;
+	entry_point_info_t *ep_info;
+
+	if (image_id != BL2_IMAGE_ID)
+		return 0;
+
+	/* Get the image descriptor */
+	image_desc = bl1_plat_get_image_desc(BL2_IMAGE_ID);
+	assert(image_desc != NULL);
+
+	/* Get the entry point info */
+	ep_info = &image_desc->ep_info;
+
+	bl2_tzram_layout.total_base = BL2_BASE;
+	bl2_tzram_layout.total_size = BL32_LIMIT - BL2_BASE;
+
+	flush_dcache_range((uintptr_t)&bl2_tzram_layout, sizeof(meminfo_t));
+
+	ep_info->args.arg1 = (uintptr_t)&bl2_tzram_layout;
+
+	VERBOSE("BL1: BL2 memory layout address = %p\n",
+		(void *)&bl2_tzram_layout);
+
+	return 0;
+}
+
+void bl1_early_platform_setup(void)
+{
+	/* Initialize the console to provide early debug support */
+	console_pl011_register(PL011_UART0_BASE, PL011_UART0_CLK_IN_HZ,
+			       PL011_BAUDRATE, &console);
+
+	/* Allow BL1 to see the whole Trusted RAM */
+	bl1_tzram_layout.total_base = BL1_RW_BASE;
+	bl1_tzram_layout.total_size = BL1_RW_SIZE;
+
+	INFO("BL1: 0x%lx - 0x%lx [size = %zu]\n", BL1_RAM_BASE, BL1_RAM_LIMIT,
+	     BL1_RAM_LIMIT - BL1_RAM_BASE);
+}
+
+void bl1_plat_arch_setup(void)
+{
+	plat_configure_mmu_el3(bl1_tzram_layout.total_base,
+			       bl1_tzram_layout.total_size,
+			       BL1_RO_BASE, /* l-loader and BL1 ROM */
+			       BL1_RO_LIMIT,
+			       BL_COHERENT_RAM_BASE,
+			       BL_COHERENT_RAM_END);
+}
+
+void bl1_platform_setup(void)
+{
+	int i;
+#if !POPLAR_RECOVERY
+	dw_mmc_params_t params = EMMC_INIT_PARAMS(POPLAR_EMMC_DESC_BASE);
+#endif
+
+	generic_delay_timer_init();
+
+	pl061_gpio_init();
+	for (i = 0; i < GPIO_MAX; i++)
+		pl061_gpio_register(GPIO_BASE(i), i);
+
+#if !POPLAR_RECOVERY
+	/* SoC-specific emmc register are initialized/configured by bootrom */
+	INFO("BL1: initializing emmc\n");
+	mmc_info.mmc_dev_type = MMC_IS_EMMC;
+	dw_mmc_init(&params, &mmc_info);
+#endif
+
+	plat_io_setup();
+}
+
+unsigned int bl1_plat_get_next_image_id(void)
+{
+	return BL2_IMAGE_ID;
+}