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) 2019, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <arch_helpers.h>
+#include <common/bl_common.h>
+#include <common/desc_image_load.h>
+#include <devapc.h>
+#include <emi_mpu.h>
+#include <plat/common/common_def.h>
+#include <drivers/console.h>
+#include <common/debug.h>
+#include <drivers/generic_delay_timer.h>
+#include <mcucfg.h>
+#include <mt_gic_v3.h>
+#include <mt_timer.h>
+#include <lib/coreboot.h>
+#include <lib/mmio.h>
+#include <mtk_mcdi.h>
+#include <mtk_plat_common.h>
+#include <mtspmc.h>
+#include <plat_debug.h>
+#include <plat_params.h>
+#include <plat_private.h>
+#include <platform_def.h>
+#include <scu.h>
+#include <spm.h>
+#include <drivers/ti/uart/uart_16550.h>
+
+static entry_point_info_t bl32_ep_info;
+static entry_point_info_t bl33_ep_info;
+
+static void platform_setup_cpu(void)
+{
+	mmio_write_32((uintptr_t)&mt8183_mcucfg->mp0_rw_rsvd0, 0x00000001);
+
+	/* Mcusys dcm control */
+	/* Enable pll plldiv dcm */
+	mmio_setbits_32((uintptr_t)&mt8183_mcucfg->bus_pll_divider_cfg,
+		BUS_PLLDIV_DCM);
+	mmio_setbits_32((uintptr_t)&mt8183_mcucfg->mp0_pll_divider_cfg,
+		MP0_PLLDIV_DCM);
+	mmio_setbits_32((uintptr_t)&mt8183_mcucfg->mp2_pll_divider_cfg,
+		MP2_PLLDIV_DCM);
+	/* Enable mscib dcm  */
+	mmio_clrsetbits_32((uintptr_t)&mt8183_mcucfg->mscib_dcm_en,
+		MCSIB_CACTIVE_SEL_MASK, MCSIB_CACTIVE_SEL);
+	mmio_clrsetbits_32((uintptr_t)&mt8183_mcucfg->mscib_dcm_en,
+		MCSIB_DCM_MASK, MCSIB_DCM);
+	/* Enable adb400 dcm */
+	mmio_clrsetbits_32((uintptr_t)&mt8183_mcucfg->cci_adb400_dcm_config,
+		CCI_ADB400_DCM_MASK, CCI_ADB400_DCM);
+	/* Enable bus clock dcm */
+	mmio_setbits_32((uintptr_t)&mt8183_mcucfg->cci_clk_ctrl,
+		MCU_BUS_DCM);
+	/* Enable bus fabric dcm */
+	mmio_clrsetbits_32(
+		(uintptr_t)&mt8183_mcucfg->mcusys_bus_fabric_dcm_ctrl,
+		MCUSYS_BUS_FABRIC_DCM_MASK,
+		MCUSYS_BUS_FABRIC_DCM);
+	/* Enable l2c sram dcm */
+	mmio_setbits_32((uintptr_t)&mt8183_mcucfg->l2c_sram_ctrl,
+		L2C_SRAM_DCM);
+	/* Enable busmp0 sync dcm */
+	mmio_clrsetbits_32((uintptr_t)&mt8183_mcucfg->sync_dcm_config,
+		SYNC_DCM_MASK, SYNC_DCM);
+	/* Enable cntvalue dcm */
+	mmio_setbits_32((uintptr_t)&mt8183_mcucfg->mcu_misc_dcm_ctrl,
+		CNTVALUEB_DCM);
+	/* Enable dcm cluster stall */
+	mmio_clrsetbits_32(
+		(uintptr_t)&mt8183_mcucfg->sync_dcm_cluster_config,
+		MCUSYS_MAX_ACCESS_LATENCY_MASK,
+		MCUSYS_MAX_ACCESS_LATENCY);
+	mmio_setbits_32((uintptr_t)&mt8183_mcucfg->sync_dcm_cluster_config,
+		MCU0_SYNC_DCM_STALL_WR_EN);
+	/* Enable rgu dcm */
+	mmio_setbits_32((uintptr_t)&mt8183_mcucfg->mp0_rgu_dcm_config,
+		CPUSYS_RGU_DCM_CINFIG);
+}
+
+/*******************************************************************************
+ * Return a pointer to the 'entry_point_info' structure of the next image for
+ * the security state specified. BL33 corresponds to the non-secure image type
+ * while BL32 corresponds to the secure image type. A NULL pointer is returned
+ * if the image does not exist.
+ ******************************************************************************/
+entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
+{
+	entry_point_info_t *next_image_info;
+
+	next_image_info = (type == NON_SECURE) ? &bl33_ep_info : &bl32_ep_info;
+	assert(next_image_info->h.type == PARAM_EP);
+
+	/* None of the images on this platform can have 0x0 as the entrypoint */
+	if (next_image_info->pc)
+		return next_image_info;
+	else
+		return NULL;
+}
+
+/*******************************************************************************
+ * Perform any BL31 early platform setup. Here is an opportunity to copy
+ * parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before they
+ * are lost (potentially). This needs to be done before the MMU is initialized
+ * so that the memory layout can be used while creating page tables.
+ * BL2 has flushed this information to memory, so we are guaranteed to pick up
+ * good data.
+ ******************************************************************************/
+void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
+				u_register_t arg2, u_register_t arg3)
+{
+	static console_t console;
+
+	params_early_setup(arg1);
+
+#if COREBOOT
+	if (coreboot_serial.type)
+		console_16550_register(coreboot_serial.baseaddr,
+				       coreboot_serial.input_hertz,
+				       coreboot_serial.baud,
+				       &console);
+#else
+	console_16550_register(UART0_BASE, UART_CLOCK, UART_BAUDRATE, &console);
+#endif
+
+	NOTICE("MT8183 bl31_setup\n");
+
+	bl31_params_parse_helper(arg0, &bl32_ep_info, &bl33_ep_info);
+}
+
+
+/*******************************************************************************
+ * Perform any BL31 platform setup code
+ ******************************************************************************/
+void bl31_platform_setup(void)
+{
+	devapc_init();
+
+	emi_mpu_init();
+
+	platform_setup_cpu();
+	generic_delay_timer_init();
+
+	/* Initialize the GIC driver, CPU and distributor interfaces */
+	mt_gic_driver_init();
+	mt_gic_init();
+
+	mt_systimer_init();
+
+	/* Init mcsi SF */
+	plat_mtk_cci_init_sf();
+
+#if SPMC_MODE == 1
+	spmc_init();
+#endif
+	spm_boot_init();
+	mcdi_init();
+}
+
+/*******************************************************************************
+ * Perform the very early platform specific architectural setup here. At the
+ * moment this is only intializes the mmu in a quick and dirty way.
+ ******************************************************************************/
+void bl31_plat_arch_setup(void)
+{
+	plat_mtk_cci_init();
+	plat_mtk_cci_enable();
+
+	enable_scu(read_mpidr());
+
+	plat_configure_mmu_el3(BL_CODE_BASE,
+			       BL_COHERENT_RAM_END - BL_CODE_BASE,
+			       BL_CODE_BASE,
+			       BL_CODE_END,
+			       BL_COHERENT_RAM_BASE,
+			       BL_COHERENT_RAM_END);
+}