arch/arm/mach-imx/imx8/cpu.c - platform/external/u-boot - Gitiles

 // SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2018, 2021 NXP
  */

 #include <common.h>
 #include <clk.h>
 #include <cpu.h>
 #include <cpu_func.h>
 #include <dm.h>
 #include <event.h>
 #include <init.h>
 #include <log.h>
 #include <asm/cache.h>
 #include <asm/global_data.h>
 #include <dm/device-internal.h>
 #include <dm/lists.h>
 #include <dm/uclass.h>
 #include <errno.h>
 #include <spl.h>
 #include <thermal.h>
 #include <firmware/imx/sci/sci.h>
 #include <asm/arch/sys_proto.h>
 #include <asm/arch-imx/cpu.h>
 #include <asm/armv8/cpu.h>
 #include <asm/armv8/mmu.h>
 #include <asm/setup.h>
 #include <asm/mach-imx/boot_mode.h>
 #include <power-domain.h>
 #include <elf.h>
 #include <spl.h>

 DECLARE_GLOBAL_DATA_PTR;

 #define BT_PASSOVER_TAG	0x504F
 struct pass_over_info_t *get_pass_over_info(void)
 {
 	struct pass_over_info_t *p =
 		(struct pass_over_info_t *)PASS_OVER_INFO_ADDR;

 	if (p->barker != BT_PASSOVER_TAG ||
 	    p->len != sizeof(struct pass_over_info_t))
 		return NULL;

 	return p;
 }

 int arch_cpu_init(void)
 {
 #if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_RECOVER_DATA_SECTION)
 	spl_save_restore_data();
 #endif

 #ifdef CONFIG_SPL_BUILD
 	struct pass_over_info_t *pass_over;

 	if (is_soc_rev(CHIP_REV_A)) {
 		pass_over = get_pass_over_info();
 		if (pass_over && pass_over->g_ap_mu == 0) {
 			/*
 			 * When ap_mu is 0, means the U-Boot booted
 			 * from first container
 			 */
 			sc_misc_boot_status(-1, SC_MISC_BOOT_STATUS_SUCCESS);
 		}
 	}
 #endif

 	return 0;
 }

 static int imx8_init_mu(void)
 {
 	struct udevice *devp;
 	int node, ret;

 	node = fdt_node_offset_by_compatible(gd->fdt_blob, -1, "fsl,imx8-mu");

 	ret = uclass_get_device_by_of_offset(UCLASS_MISC, node, &devp);
 	if (ret) {
 		printf("could not get scu %d\n", ret);
 		return ret;
 	}

 	if (is_imx8qm()) {
 		ret = sc_pm_set_resource_power_mode(-1, SC_R_SMMU,
 						    SC_PM_PW_MODE_ON);
 		if (ret)
 			return ret;
 	}

 	return 0;
 }
 EVENT_SPY_SIMPLE(EVT_DM_POST_INIT_F, imx8_init_mu);

 #if defined(CONFIG_ARCH_MISC_INIT)
 int arch_misc_init(void)
 {
 	if (IS_ENABLED(CONFIG_FSL_CAAM)) {
 		struct udevice *dev;
 		int ret;

 		ret = uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(caam_jr), &dev);
 		if (ret)
 			printf("Failed to initialize caam_jr: %d\n", ret);
 	}

 	return 0;
 }
 #endif

 #ifdef CONFIG_IMX_BOOTAUX

 #ifdef CONFIG_IMX8QM
 int arch_auxiliary_core_up(u32 core_id, ulong boot_private_data)
 {
 	sc_rsrc_t core_rsrc, mu_rsrc;
 	sc_faddr_t tcml_addr;
 	u32 tcml_size = SZ_128K;
 	ulong addr;

 	switch (core_id) {
 	case 0:
 		core_rsrc = SC_R_M4_0_PID0;
 		tcml_addr = 0x34FE0000;
 		mu_rsrc = SC_R_M4_0_MU_1A;
 		break;
 	case 1:
 		core_rsrc = SC_R_M4_1_PID0;
 		tcml_addr = 0x38FE0000;
 		mu_rsrc = SC_R_M4_1_MU_1A;
 		break;
 	default:
 		printf("Not support this core boot up, ID:%u\n", core_id);
 		return -EINVAL;
 	}

 	addr = (sc_faddr_t)boot_private_data;

 	if (addr >= tcml_addr && addr <= tcml_addr + tcml_size) {
 		printf("Wrong image address 0x%lx, should not in TCML\n",
 		       addr);
 		return -EINVAL;
 	}

 	printf("Power on M4 and MU\n");

 	if (sc_pm_set_resource_power_mode(-1, core_rsrc, SC_PM_PW_MODE_ON) != SC_ERR_NONE)
 		return -EIO;

 	if (sc_pm_set_resource_power_mode(-1, mu_rsrc, SC_PM_PW_MODE_ON) != SC_ERR_NONE)
 		return -EIO;

 	printf("Copy M4 image from 0x%lx to TCML 0x%lx\n", addr, (ulong)tcml_addr);

 	if (addr != tcml_addr)
 		memcpy((void *)tcml_addr, (void *)addr, tcml_size);

 	printf("Start M4 %u\n", core_id);
 	if (sc_pm_cpu_start(-1, core_rsrc, true, tcml_addr) != SC_ERR_NONE)
 		return -EIO;

 	printf("bootaux complete\n");
 	return 0;
 }
 #endif

 #ifdef CONFIG_IMX8QXP
 int arch_auxiliary_core_up(u32 core_id, ulong boot_private_data)
 {
 	sc_rsrc_t core_rsrc, mu_rsrc = SC_R_NONE;
 	sc_faddr_t aux_core_ram;
 	u32 size;
 	ulong addr;

 	switch (core_id) {
 	case 0:
 		core_rsrc = SC_R_M4_0_PID0;
 		aux_core_ram = 0x34FE0000;
 		mu_rsrc = SC_R_M4_0_MU_1A;
 		size = SZ_128K;
 		break;
 	case 1:
 		core_rsrc = SC_R_DSP;
 		aux_core_ram = 0x596f8000;
 		size = SZ_2K;
 		break;
 	default:
 		printf("Not support this core boot up, ID:%u\n", core_id);
 		return -EINVAL;
 	}

 	addr = (sc_faddr_t)boot_private_data;

 	if (addr >= aux_core_ram && addr <= aux_core_ram + size) {
 		printf("Wrong image address 0x%lx, should not in aux core ram\n",
 		       addr);
 		return -EINVAL;
 	}

 	printf("Power on aux core %d\n", core_id);

 	if (sc_pm_set_resource_power_mode(-1, core_rsrc, SC_PM_PW_MODE_ON) != SC_ERR_NONE)
 		return -EIO;

 	if (mu_rsrc != SC_R_NONE) {
 		if (sc_pm_set_resource_power_mode(-1, mu_rsrc, SC_PM_PW_MODE_ON) != SC_ERR_NONE)
 			return -EIO;
 	}

 	if (core_id == 1) {
 		struct power_domain pd;

 		if (sc_pm_clock_enable(-1, core_rsrc, SC_PM_CLK_PER, true, false) != SC_ERR_NONE) {
 			printf("Error enable clock\n");
 			return -EIO;
 		}

 		if (!power_domain_lookup_name("audio_sai0", &pd)) {
 			if (power_domain_on(&pd)) {
 				printf("Error power on SAI0\n");
 				return -EIO;
 			}
 		}

 		if (!power_domain_lookup_name("audio_ocram", &pd)) {
 			if (power_domain_on(&pd)) {
 				printf("Error power on HIFI RAM\n");
 				return -EIO;
 			}
 		}
 	}

 	printf("Copy image from 0x%lx to 0x%lx\n", addr, (ulong)aux_core_ram);
 	if (core_id == 0) {
 		/* M4 use bin file */
 		memcpy((void *)aux_core_ram, (void *)addr, size);
 	} else {
 		/* HIFI use elf file */
 		if (!valid_elf_image(addr))
 			return -1;
 		addr = load_elf_image_shdr(addr);
 	}

 	printf("Start %s\n", core_id == 0 ? "M4" : "HIFI");

 	if (sc_pm_cpu_start(-1, core_rsrc, true, aux_core_ram) != SC_ERR_NONE)
 		return -EIO;

 	printf("bootaux complete\n");
 	return 0;
 }
 #endif

 int arch_auxiliary_core_check_up(u32 core_id)
 {
 	sc_rsrc_t core_rsrc;
 	sc_pm_power_mode_t power_mode;

 	switch (core_id) {
 	case 0:
 		core_rsrc = SC_R_M4_0_PID0;
 		break;
 #ifdef CONFIG_IMX8QM
 	case 1:
 		core_rsrc = SC_R_M4_1_PID0;
 		break;
 #endif
 	default:
 		printf("Not support this core, ID:%u\n", core_id);
 		return 0;
 	}

 	if (sc_pm_get_resource_power_mode(-1, core_rsrc, &power_mode) != SC_ERR_NONE)
 		return 0;

 	if (power_mode != SC_PM_PW_MODE_OFF)
 		return 1;

 	return 0;
 }
 #endif

 int print_bootinfo(void)
 {
 	enum boot_device bt_dev = get_boot_device();

 	puts("Boot:  ");
 	switch (bt_dev) {
 	case SD1_BOOT:
 		puts("SD0\n");
 		break;
 	case SD2_BOOT:
 		puts("SD1\n");
 		break;
 	case SD3_BOOT:
 		puts("SD2\n");
 		break;
 	case MMC1_BOOT:
 		puts("MMC0\n");
 		break;
 	case MMC2_BOOT:
 		puts("MMC1\n");
 		break;
 	case MMC3_BOOT:
 		puts("MMC2\n");
 		break;
 	case FLEXSPI_BOOT:
 		puts("FLEXSPI\n");
 		break;
 	case SATA_BOOT:
 		puts("SATA\n");
 		break;
 	case NAND_BOOT:
 		puts("NAND\n");
 		break;
 	case USB_BOOT:
 		puts("USB\n");
 		break;
 	default:
 		printf("Unknown device %u\n", bt_dev);
 		break;
 	}

 	return 0;
 }

 enum boot_device get_boot_device(void)
 {
 	enum boot_device boot_dev = SD1_BOOT;

 	sc_rsrc_t dev_rsrc;

 	sc_misc_get_boot_dev(-1, &dev_rsrc);

 	switch (dev_rsrc) {
 	case SC_R_SDHC_0:
 		boot_dev = MMC1_BOOT;
 		break;
 	case SC_R_SDHC_1:
 		boot_dev = SD2_BOOT;
 		break;
 	case SC_R_SDHC_2:
 		boot_dev = SD3_BOOT;
 		break;
 	case SC_R_NAND:
 		boot_dev = NAND_BOOT;
 		break;
 	case SC_R_FSPI_0:
 		boot_dev = FLEXSPI_BOOT;
 		break;
 	case SC_R_SATA_0:
 		boot_dev = SATA_BOOT;
 		break;
 	case SC_R_USB_0:
 	case SC_R_USB_1:
 	case SC_R_USB_2:
 		boot_dev = USB_BOOT;
 		break;
 	default:
 		break;
 	}

 	return boot_dev;
 }

 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 #define FUSE_UNIQUE_ID_WORD0 16
 #define FUSE_UNIQUE_ID_WORD1 17
 void get_board_serial(struct tag_serialnr *serialnr)
 {
 	int err;
 	u32 val1 = 0, val2 = 0;
 	u32 word1, word2;

 	if (!serialnr)
 		return;

 	word1 = FUSE_UNIQUE_ID_WORD0;
 	word2 = FUSE_UNIQUE_ID_WORD1;

 	err = sc_misc_otp_fuse_read(-1, word1, &val1);
 	if (err) {
 		printf("%s fuse %d read error: %d\n", __func__, word1, err);
 		return;
 	}

 	err = sc_misc_otp_fuse_read(-1, word2, &val2);
 	if (err) {
 		printf("%s fuse %d read error: %d\n", __func__, word2, err);
 		return;
 	}
 	serialnr->low = val1;
 	serialnr->high = val2;
 }
 #endif /*CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG*/

 #ifdef CONFIG_ENV_IS_IN_MMC
 __weak int board_mmc_get_env_dev(int devno)
 {
 	return CONFIG_SYS_MMC_ENV_DEV;
 }

 int mmc_get_env_dev(void)
 {
 	sc_rsrc_t dev_rsrc;
 	int devno;

 	sc_misc_get_boot_dev(-1, &dev_rsrc);

 	switch (dev_rsrc) {
 	case SC_R_SDHC_0:
 		devno = 0;
 		break;
 	case SC_R_SDHC_1:
 		devno = 1;
 		break;
 	case SC_R_SDHC_2:
 		devno = 2;
 		break;
 	default:
 		/* If not boot from sd/mmc, use default value */
 		return CONFIG_SYS_MMC_ENV_DEV;
 	}

 	return board_mmc_get_env_dev(devno);
 }
 #endif

 #define MEMSTART_ALIGNMENT  SZ_2M /* Align the memory start with 2MB */

 static int get_owned_memreg(sc_rm_mr_t mr, sc_faddr_t *addr_start,
 			    sc_faddr_t *addr_end)
 {
 	sc_faddr_t start, end;
 	int ret;
 	bool owned;

 	owned = sc_rm_is_memreg_owned(-1, mr);
 	if (owned) {
 		ret = sc_rm_get_memreg_info(-1, mr, &start, &end);
 		if (ret) {
 			printf("Memreg get info failed, %d\n", ret);
 			return -EINVAL;
 		}
 		debug("0x%llx -- 0x%llx\n", start, end);
 		*addr_start = start;
 		*addr_end = end;

 		return 0;
 	}

 	return -EINVAL;
 }

 __weak void board_mem_get_layout(u64 *phys_sdram_1_start,
 				 u64 *phys_sdram_1_size,
 				 u64 *phys_sdram_2_start,
 				 u64 *phys_sdram_2_size)
 {
 	*phys_sdram_1_start = PHYS_SDRAM_1;
 	*phys_sdram_1_size = PHYS_SDRAM_1_SIZE;
 	*phys_sdram_2_start = PHYS_SDRAM_2;
 	*phys_sdram_2_size = PHYS_SDRAM_2_SIZE;
 }

 phys_size_t get_effective_memsize(void)
 {
 	sc_rm_mr_t mr;
 	sc_faddr_t start, end, end1, start_aligned;
 	u64 phys_sdram_1_start, phys_sdram_1_size;
 	u64 phys_sdram_2_start, phys_sdram_2_size;
 	int err;

 	board_mem_get_layout(&phys_sdram_1_start, &phys_sdram_1_size,
 			     &phys_sdram_2_start, &phys_sdram_2_size);


 	end1 = (sc_faddr_t)phys_sdram_1_start + phys_sdram_1_size;
 	for (mr = 0; mr < 64; mr++) {
 		err = get_owned_memreg(mr, &start, &end);
 		if (!err) {
 			start_aligned = roundup(start, MEMSTART_ALIGNMENT);
 			/* Too small memory region, not use it */
 			if (start_aligned > end)
 				continue;

 			/* Find the memory region runs the U-Boot */
 			if (start >= phys_sdram_1_start && start <= end1 &&
 			    (start <= CONFIG_TEXT_BASE &&
 			    end >= CONFIG_TEXT_BASE)) {
 				if ((end + 1) <=
 				    ((sc_faddr_t)phys_sdram_1_start +
 				    phys_sdram_1_size))
 					return (end - phys_sdram_1_start + 1);
 				else
 					return phys_sdram_1_size;
 			}
 		}
 	}

 	return phys_sdram_1_size;
 }

 int dram_init(void)
 {
 	sc_rm_mr_t mr;
 	sc_faddr_t start, end, end1, end2;
 	u64 phys_sdram_1_start, phys_sdram_1_size;
 	u64 phys_sdram_2_start, phys_sdram_2_size;
 	int err;

 	board_mem_get_layout(&phys_sdram_1_start, &phys_sdram_1_size,
 			     &phys_sdram_2_start, &phys_sdram_2_size);

 	end1 = (sc_faddr_t)phys_sdram_1_start + phys_sdram_1_size;
 	end2 = (sc_faddr_t)phys_sdram_2_start + phys_sdram_2_size;
 	for (mr = 0; mr < 64; mr++) {
 		err = get_owned_memreg(mr, &start, &end);
 		if (!err) {
 			start = roundup(start, MEMSTART_ALIGNMENT);
 			/* Too small memory region, not use it */
 			if (start > end)
 				continue;

 			if (start >= phys_sdram_1_start && start <= end1) {
 				if ((end + 1) <= end1)
 					gd->ram_size += end - start + 1;
 				else
 					gd->ram_size += end1 - start;
 			} else if (start >= phys_sdram_2_start &&
 				   start <= end2) {
 				if ((end + 1) <= end2)
 					gd->ram_size += end - start + 1;
 				else
 					gd->ram_size += end2 - start;
 			}
 		}
 	}

 	/* If error, set to the default value */
 	if (!gd->ram_size) {
 		gd->ram_size = phys_sdram_1_size;
 		gd->ram_size += phys_sdram_2_size;
 	}
 	return 0;
 }

 static void dram_bank_sort(int current_bank)
 {
 	phys_addr_t start;
 	phys_size_t size;

 	while (current_bank > 0) {
 		if (gd->bd->bi_dram[current_bank - 1].start >
 		    gd->bd->bi_dram[current_bank].start) {
 			start = gd->bd->bi_dram[current_bank - 1].start;
 			size = gd->bd->bi_dram[current_bank - 1].size;

 			gd->bd->bi_dram[current_bank - 1].start =
 				gd->bd->bi_dram[current_bank].start;
 			gd->bd->bi_dram[current_bank - 1].size =
 				gd->bd->bi_dram[current_bank].size;

 			gd->bd->bi_dram[current_bank].start = start;
 			gd->bd->bi_dram[current_bank].size = size;
 		}
 		current_bank--;
 	}
 }

 int dram_init_banksize(void)
 {
 	sc_rm_mr_t mr;
 	sc_faddr_t start, end, end1, end2;
 	int i = 0;
 	u64 phys_sdram_1_start, phys_sdram_1_size;
 	u64 phys_sdram_2_start, phys_sdram_2_size;
 	int err;

 	board_mem_get_layout(&phys_sdram_1_start, &phys_sdram_1_size,
 			     &phys_sdram_2_start, &phys_sdram_2_size);

 	end1 = (sc_faddr_t)phys_sdram_1_start + phys_sdram_1_size;
 	end2 = (sc_faddr_t)phys_sdram_2_start + phys_sdram_2_size;
 	for (mr = 0; mr < 64 && i < CONFIG_NR_DRAM_BANKS; mr++) {
 		err = get_owned_memreg(mr, &start, &end);
 		if (!err) {
 			start = roundup(start, MEMSTART_ALIGNMENT);
 			if (start > end) /* Small memory region, no use it */
 				continue;

 			if (start >= phys_sdram_1_start && start <= end1) {
 				gd->bd->bi_dram[i].start = start;

 				if ((end + 1) <= end1)
 					gd->bd->bi_dram[i].size =
 						end - start + 1;
 				else
 					gd->bd->bi_dram[i].size = end1 - start;

 				dram_bank_sort(i);
 				i++;
 			} else if (start >= phys_sdram_2_start && start <= end2) {
 				gd->bd->bi_dram[i].start = start;

 				if ((end + 1) <= end2)
 					gd->bd->bi_dram[i].size =
 						end - start + 1;
 				else
 					gd->bd->bi_dram[i].size = end2 - start;

 				dram_bank_sort(i);
 				i++;
 			}
 		}
 	}

 	/* If error, set to the default value */
 	if (!i) {
 		gd->bd->bi_dram[0].start = phys_sdram_1_start;
 		gd->bd->bi_dram[0].size = phys_sdram_1_size;
 		gd->bd->bi_dram[1].start = phys_sdram_2_start;
 		gd->bd->bi_dram[1].size = phys_sdram_2_size;
 	}

 	return 0;
 }

 static u64 get_block_attrs(sc_faddr_t addr_start)
 {
 	u64 attr = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | PTE_BLOCK_NON_SHARE |
 		PTE_BLOCK_PXN | PTE_BLOCK_UXN;
 	u64 phys_sdram_1_start, phys_sdram_1_size;
 	u64 phys_sdram_2_start, phys_sdram_2_size;

 	board_mem_get_layout(&phys_sdram_1_start, &phys_sdram_1_size,
 			     &phys_sdram_2_start, &phys_sdram_2_size);

 	if ((addr_start >= phys_sdram_1_start &&
 	     addr_start <= ((sc_faddr_t)phys_sdram_1_start + phys_sdram_1_size)) ||
 	    (addr_start >= phys_sdram_2_start &&
 	     addr_start <= ((sc_faddr_t)phys_sdram_2_start + phys_sdram_2_size)))
 		return (PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_OUTER_SHARE);

 	return attr;
 }

 static u64 get_block_size(sc_faddr_t addr_start, sc_faddr_t addr_end)
 {
 	sc_faddr_t end1, end2;
 	u64 phys_sdram_1_start, phys_sdram_1_size;
 	u64 phys_sdram_2_start, phys_sdram_2_size;

 	board_mem_get_layout(&phys_sdram_1_start, &phys_sdram_1_size,
 			     &phys_sdram_2_start, &phys_sdram_2_size);


 	end1 = (sc_faddr_t)phys_sdram_1_start + phys_sdram_1_size;
 	end2 = (sc_faddr_t)phys_sdram_2_start + phys_sdram_2_size;

 	if (addr_start >= phys_sdram_1_start && addr_start <= end1) {
 		if ((addr_end + 1) > end1)
 			return end1 - addr_start;
 	} else if (addr_start >= phys_sdram_2_start && addr_start <= end2) {
 		if ((addr_end + 1) > end2)
 			return end2 - addr_start;
 	}

 	return (addr_end - addr_start + 1);
 }

 #define MAX_PTE_ENTRIES 512
 #define MAX_MEM_MAP_REGIONS 16

 static struct mm_region imx8_mem_map[MAX_MEM_MAP_REGIONS];
 struct mm_region *mem_map = imx8_mem_map;

 void enable_caches(void)
 {
 	sc_rm_mr_t mr;
 	sc_faddr_t start, end;
 	int err, i;

 	/* Create map for registers access from 0x1c000000 to 0x80000000*/
 	imx8_mem_map[0].virt = 0x1c000000UL;
 	imx8_mem_map[0].phys = 0x1c000000UL;
 	imx8_mem_map[0].size = 0x64000000UL;
 	imx8_mem_map[0].attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
 			 PTE_BLOCK_NON_SHARE | PTE_BLOCK_PXN | PTE_BLOCK_UXN;

 	i = 1;
 	for (mr = 0; mr < 64 && i < MAX_MEM_MAP_REGIONS; mr++) {
 		err = get_owned_memreg(mr, &start, &end);
 		if (!err) {
 			imx8_mem_map[i].virt = start;
 			imx8_mem_map[i].phys = start;
 			imx8_mem_map[i].size = get_block_size(start, end);
 			imx8_mem_map[i].attrs = get_block_attrs(start);
 			i++;
 		}
 	}

 	if (i < MAX_MEM_MAP_REGIONS) {
 		imx8_mem_map[i].size = 0;
 		imx8_mem_map[i].attrs = 0;
 	} else {
 		puts("Error, need more MEM MAP REGIONS reserved\n");
 		icache_enable();
 		return;
 	}

 	for (i = 0; i < MAX_MEM_MAP_REGIONS; i++) {
 		debug("[%d] vir = 0x%llx phys = 0x%llx size = 0x%llx attrs = 0x%llx\n",
 		      i, imx8_mem_map[i].virt, imx8_mem_map[i].phys,
 		      imx8_mem_map[i].size, imx8_mem_map[i].attrs);
 	}

 	icache_enable();
 	dcache_enable();
 }

 #if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
 u64 get_page_table_size(void)
 {
 	u64 one_pt = MAX_PTE_ENTRIES * sizeof(u64);
 	u64 size = 0;

 	/*
 	 * For each memory region, the max table size:
 	 * 2 level 3 tables + 2 level 2 tables + 1 level 1 table
 	 */
 	size = (2 + 2 + 1) * one_pt * MAX_MEM_MAP_REGIONS + one_pt;

 	/*
 	 * We need to duplicate our page table once to have an emergency pt to
 	 * resort to when splitting page tables later on
 	 */
 	size *= 2;

 	/*
 	 * We may need to split page tables later on if dcache settings change,
 	 * so reserve up to 4 (random pick) page tables for that.
 	 */
 	size += one_pt * 4;

 	return size;
 }
 #endif

 #if defined(CONFIG_IMX8QM)
 #define FUSE_MAC0_WORD0 452
 #define FUSE_MAC0_WORD1 453
 #define FUSE_MAC1_WORD0 454
 #define FUSE_MAC1_WORD1 455
 #elif defined(CONFIG_IMX8QXP)
 #define FUSE_MAC0_WORD0 708
 #define FUSE_MAC0_WORD1 709
 #define FUSE_MAC1_WORD0 710
 #define FUSE_MAC1_WORD1 711
 #endif

 void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
 {
 	u32 word[2], val[2] = {};
 	int i, ret;

 	if (dev_id == 0) {
 		word[0] = FUSE_MAC0_WORD0;
 		word[1] = FUSE_MAC0_WORD1;
 	} else {
 		word[0] = FUSE_MAC1_WORD0;
 		word[1] = FUSE_MAC1_WORD1;
 	}

 	for (i = 0; i < 2; i++) {
 		ret = sc_misc_otp_fuse_read(-1, word[i], &val[i]);
 		if (ret < 0)
 			goto err;
 	}

 	mac[0] = val[0];
 	mac[1] = val[0] >> 8;
 	mac[2] = val[0] >> 16;
 	mac[3] = val[0] >> 24;
 	mac[4] = val[1];
 	mac[5] = val[1] >> 8;

 	debug("%s: MAC%d: %02x.%02x.%02x.%02x.%02x.%02x\n",
 	      __func__, dev_id, mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
 	return;
 err:
 	printf("%s: fuse %d, err: %d\n", __func__, word[i], ret);
 }

 u32 get_cpu_rev(void)
 {
 	u32 id = 0, rev = 0;
 	int ret;

 	ret = sc_misc_get_control(-1, SC_R_SYSTEM, SC_C_ID, &id);
 	if (ret)
 		return 0;

 	rev = (id >> 5)  & 0xf;
 	id = (id & 0x1f) + MXC_SOC_IMX8;  /* Dummy ID for chip */

 	return (id << 12) | rev;
 }

 void board_boot_order(u32 *spl_boot_list)
 {
 	spl_boot_list[0] = spl_boot_device();

 	if (spl_boot_list[0] == BOOT_DEVICE_SPI) {
 		/* Check whether we own the flexspi0, if not, use NOR boot */
 		if (!sc_rm_is_resource_owned(-1, SC_R_FSPI_0))
 			spl_boot_list[0] = BOOT_DEVICE_NOR;
 	}
 }

 bool m4_parts_booted(void)
 {
 	sc_rm_pt_t m4_parts[2];
 	int err;

 	err = sc_rm_get_resource_owner(-1, SC_R_M4_0_PID0, &m4_parts[0]);
 	if (err) {
 		printf("%s get resource [%d] owner error: %d\n", __func__,
 		       SC_R_M4_0_PID0, err);
 		return false;
 	}

 	if (sc_pm_is_partition_started(-1, m4_parts[0]))
 		return true;

 	if (is_imx8qm()) {
 		err = sc_rm_get_resource_owner(-1, SC_R_M4_1_PID0, &m4_parts[1]);
 		if (err) {
 			printf("%s get resource [%d] owner error: %d\n",
 			       __func__, SC_R_M4_1_PID0, err);
 			return false;
 		}

 		if (sc_pm_is_partition_started(-1, m4_parts[1]))
 			return true;
 	}

 	return false;
 }
	// SPDX-License-Identifier: GPL-2.0+
	/*
	* Copyright 2018, 2021 NXP
	*/

	#include <common.h>
	#include <clk.h>
	#include <cpu.h>
	#include <cpu_func.h>
	#include <dm.h>
	#include <event.h>
	#include <init.h>
	#include <log.h>
	#include <asm/cache.h>
	#include <asm/global_data.h>
	#include <dm/device-internal.h>
	#include <dm/lists.h>
	#include <dm/uclass.h>
	#include <errno.h>
	#include <spl.h>
	#include <thermal.h>
	#include <firmware/imx/sci/sci.h>
	#include <asm/arch/sys_proto.h>
	#include <asm/arch-imx/cpu.h>
	#include <asm/armv8/cpu.h>
	#include <asm/armv8/mmu.h>
	#include <asm/setup.h>
	#include <asm/mach-imx/boot_mode.h>
	#include <power-domain.h>
	#include <elf.h>
	#include <spl.h>

	DECLARE_GLOBAL_DATA_PTR;

	#define BT_PASSOVER_TAG 0x504F
	struct pass_over_info_t *get_pass_over_info(void)
	{
	struct pass_over_info_t *p =
	(struct pass_over_info_t *)PASS_OVER_INFO_ADDR;

	if (p->barker != BT_PASSOVER_TAG \|\|
	p->len != sizeof(struct pass_over_info_t))
	return NULL;

	return p;
	}

	int arch_cpu_init(void)
	{
	#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_RECOVER_DATA_SECTION)
	spl_save_restore_data();
	#endif

	#ifdef CONFIG_SPL_BUILD
	struct pass_over_info_t *pass_over;

	if (is_soc_rev(CHIP_REV_A)) {
	pass_over = get_pass_over_info();
	if (pass_over && pass_over->g_ap_mu == 0) {
	/*
	* When ap_mu is 0, means the U-Boot booted
	* from first container
	*/
	sc_misc_boot_status(-1, SC_MISC_BOOT_STATUS_SUCCESS);
	}
	}
	#endif

	return 0;
	}

	static int imx8_init_mu(void)
	{
	struct udevice *devp;
	int node, ret;

	node = fdt_node_offset_by_compatible(gd->fdt_blob, -1, "fsl,imx8-mu");

	ret = uclass_get_device_by_of_offset(UCLASS_MISC, node, &devp);
	if (ret) {
	printf("could not get scu %d\n", ret);
	return ret;
	}

	if (is_imx8qm()) {
	ret = sc_pm_set_resource_power_mode(-1, SC_R_SMMU,
	SC_PM_PW_MODE_ON);
	if (ret)
	return ret;
	}

	return 0;
	}
	EVENT_SPY_SIMPLE(EVT_DM_POST_INIT_F, imx8_init_mu);

	#if defined(CONFIG_ARCH_MISC_INIT)
	int arch_misc_init(void)
	{
	if (IS_ENABLED(CONFIG_FSL_CAAM)) {
	struct udevice *dev;
	int ret;

	ret = uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(caam_jr), &dev);
	if (ret)
	printf("Failed to initialize caam_jr: %d\n", ret);
	}

	return 0;
	}
	#endif

	#ifdef CONFIG_IMX_BOOTAUX

	#ifdef CONFIG_IMX8QM
	int arch_auxiliary_core_up(u32 core_id, ulong boot_private_data)
	{
	sc_rsrc_t core_rsrc, mu_rsrc;
	sc_faddr_t tcml_addr;
	u32 tcml_size = SZ_128K;
	ulong addr;

	switch (core_id) {
	case 0:
	core_rsrc = SC_R_M4_0_PID0;
	tcml_addr = 0x34FE0000;
	mu_rsrc = SC_R_M4_0_MU_1A;
	break;
	case 1:
	core_rsrc = SC_R_M4_1_PID0;
	tcml_addr = 0x38FE0000;
	mu_rsrc = SC_R_M4_1_MU_1A;
	break;
	default:
	printf("Not support this core boot up, ID:%u\n", core_id);
	return -EINVAL;
	}

	addr = (sc_faddr_t)boot_private_data;

	if (addr >= tcml_addr && addr <= tcml_addr + tcml_size) {
	printf("Wrong image address 0x%lx, should not in TCML\n",
	addr);
	return -EINVAL;
	}

	printf("Power on M4 and MU\n");

	if (sc_pm_set_resource_power_mode(-1, core_rsrc, SC_PM_PW_MODE_ON) != SC_ERR_NONE)
	return -EIO;

	if (sc_pm_set_resource_power_mode(-1, mu_rsrc, SC_PM_PW_MODE_ON) != SC_ERR_NONE)
	return -EIO;

	printf("Copy M4 image from 0x%lx to TCML 0x%lx\n", addr, (ulong)tcml_addr);

	if (addr != tcml_addr)
	memcpy((void )tcml_addr, (void )addr, tcml_size);

	printf("Start M4 %u\n", core_id);
	if (sc_pm_cpu_start(-1, core_rsrc, true, tcml_addr) != SC_ERR_NONE)
	return -EIO;

	printf("bootaux complete\n");
	return 0;
	}
	#endif

	#ifdef CONFIG_IMX8QXP
	int arch_auxiliary_core_up(u32 core_id, ulong boot_private_data)
	{
	sc_rsrc_t core_rsrc, mu_rsrc = SC_R_NONE;
	sc_faddr_t aux_core_ram;
	u32 size;
	ulong addr;

	switch (core_id) {
	case 0:
	core_rsrc = SC_R_M4_0_PID0;
	aux_core_ram = 0x34FE0000;
	mu_rsrc = SC_R_M4_0_MU_1A;
	size = SZ_128K;
	break;
	case 1:
	core_rsrc = SC_R_DSP;
	aux_core_ram = 0x596f8000;
	size = SZ_2K;
	break;
	default:
	printf("Not support this core boot up, ID:%u\n", core_id);
	return -EINVAL;
	}

	addr = (sc_faddr_t)boot_private_data;

	if (addr >= aux_core_ram && addr <= aux_core_ram + size) {
	printf("Wrong image address 0x%lx, should not in aux core ram\n",
	addr);
	return -EINVAL;
	}

	printf("Power on aux core %d\n", core_id);

	if (sc_pm_set_resource_power_mode(-1, core_rsrc, SC_PM_PW_MODE_ON) != SC_ERR_NONE)
	return -EIO;

	if (mu_rsrc != SC_R_NONE) {
	if (sc_pm_set_resource_power_mode(-1, mu_rsrc, SC_PM_PW_MODE_ON) != SC_ERR_NONE)
	return -EIO;
	}

	if (core_id == 1) {
	struct power_domain pd;

	if (sc_pm_clock_enable(-1, core_rsrc, SC_PM_CLK_PER, true, false) != SC_ERR_NONE) {
	printf("Error enable clock\n");
	return -EIO;
	}

	if (!power_domain_lookup_name("audio_sai0", &pd)) {
	if (power_domain_on(&pd)) {
	printf("Error power on SAI0\n");
	return -EIO;
	}
	}

	if (!power_domain_lookup_name("audio_ocram", &pd)) {
	if (power_domain_on(&pd)) {
	printf("Error power on HIFI RAM\n");
	return -EIO;
	}
	}
	}

	printf("Copy image from 0x%lx to 0x%lx\n", addr, (ulong)aux_core_ram);
	if (core_id == 0) {
	/* M4 use bin file */
	memcpy((void )aux_core_ram, (void )addr, size);
	} else {
	/* HIFI use elf file */
	if (!valid_elf_image(addr))
	return -1;
	addr = load_elf_image_shdr(addr);
	}

	printf("Start %s\n", core_id == 0 ? "M4" : "HIFI");

	if (sc_pm_cpu_start(-1, core_rsrc, true, aux_core_ram) != SC_ERR_NONE)
	return -EIO;

	printf("bootaux complete\n");
	return 0;
	}
	#endif

	int arch_auxiliary_core_check_up(u32 core_id)
	{
	sc_rsrc_t core_rsrc;
	sc_pm_power_mode_t power_mode;

	switch (core_id) {
	case 0:
	core_rsrc = SC_R_M4_0_PID0;
	break;
	#ifdef CONFIG_IMX8QM
	case 1:
	core_rsrc = SC_R_M4_1_PID0;
	break;
	#endif
	default:
	printf("Not support this core, ID:%u\n", core_id);
	return 0;
	}

	if (sc_pm_get_resource_power_mode(-1, core_rsrc, &power_mode) != SC_ERR_NONE)
	return 0;

	if (power_mode != SC_PM_PW_MODE_OFF)
	return 1;

	return 0;
	}
	#endif

	int print_bootinfo(void)
	{
	enum boot_device bt_dev = get_boot_device();

	puts("Boot: ");
	switch (bt_dev) {
	case SD1_BOOT:
	puts("SD0\n");
	break;
	case SD2_BOOT:
	puts("SD1\n");
	break;
	case SD3_BOOT:
	puts("SD2\n");
	break;
	case MMC1_BOOT:
	puts("MMC0\n");
	break;
	case MMC2_BOOT:
	puts("MMC1\n");
	break;
	case MMC3_BOOT:
	puts("MMC2\n");
	break;
	case FLEXSPI_BOOT:
	puts("FLEXSPI\n");
	break;
	case SATA_BOOT:
	puts("SATA\n");
	break;
	case NAND_BOOT:
	puts("NAND\n");
	break;
	case USB_BOOT:
	puts("USB\n");
	break;
	default:
	printf("Unknown device %u\n", bt_dev);
	break;
	}

	return 0;
	}

	enum boot_device get_boot_device(void)
	{
	enum boot_device boot_dev = SD1_BOOT;

	sc_rsrc_t dev_rsrc;

	sc_misc_get_boot_dev(-1, &dev_rsrc);

	switch (dev_rsrc) {
	case SC_R_SDHC_0:
	boot_dev = MMC1_BOOT;
	break;
	case SC_R_SDHC_1:
	boot_dev = SD2_BOOT;
	break;
	case SC_R_SDHC_2:
	boot_dev = SD3_BOOT;
	break;
	case SC_R_NAND:
	boot_dev = NAND_BOOT;
	break;
	case SC_R_FSPI_0:
	boot_dev = FLEXSPI_BOOT;
	break;
	case SC_R_SATA_0:
	boot_dev = SATA_BOOT;
	break;
	case SC_R_USB_0:
	case SC_R_USB_1:
	case SC_R_USB_2:
	boot_dev = USB_BOOT;
	break;
	default:
	break;
	}

	return boot_dev;
	}

	#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
	#define FUSE_UNIQUE_ID_WORD0 16
	#define FUSE_UNIQUE_ID_WORD1 17
	void get_board_serial(struct tag_serialnr *serialnr)
	{
	int err;
	u32 val1 = 0, val2 = 0;
	u32 word1, word2;

	if (!serialnr)
	return;

	word1 = FUSE_UNIQUE_ID_WORD0;
	word2 = FUSE_UNIQUE_ID_WORD1;

	err = sc_misc_otp_fuse_read(-1, word1, &val1);
	if (err) {
	printf("%s fuse %d read error: %d\n", __func__, word1, err);
	return;
	}

	err = sc_misc_otp_fuse_read(-1, word2, &val2);
	if (err) {
	printf("%s fuse %d read error: %d\n", __func__, word2, err);
	return;
	}
	serialnr->low = val1;
	serialnr->high = val2;
	}
	#endif /CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG/

	#ifdef CONFIG_ENV_IS_IN_MMC
	__weak int board_mmc_get_env_dev(int devno)
	{
	return CONFIG_SYS_MMC_ENV_DEV;
	}

	int mmc_get_env_dev(void)
	{
	sc_rsrc_t dev_rsrc;
	int devno;

	sc_misc_get_boot_dev(-1, &dev_rsrc);

	switch (dev_rsrc) {
	case SC_R_SDHC_0:
	devno = 0;
	break;
	case SC_R_SDHC_1:
	devno = 1;
	break;
	case SC_R_SDHC_2:
	devno = 2;
	break;
	default:
	/* If not boot from sd/mmc, use default value */
	return CONFIG_SYS_MMC_ENV_DEV;
	}

	return board_mmc_get_env_dev(devno);
	}
	#endif

	#define MEMSTART_ALIGNMENT SZ_2M /* Align the memory start with 2MB */

	static int get_owned_memreg(sc_rm_mr_t mr, sc_faddr_t *addr_start,
	sc_faddr_t *addr_end)
	{
	sc_faddr_t start, end;
	int ret;
	bool owned;

	owned = sc_rm_is_memreg_owned(-1, mr);
	if (owned) {
	ret = sc_rm_get_memreg_info(-1, mr, &start, &end);
	if (ret) {
	printf("Memreg get info failed, %d\n", ret);
	return -EINVAL;
	}
	debug("0x%llx -- 0x%llx\n", start, end);
	*addr_start = start;
	*addr_end = end;

	return 0;
	}

	return -EINVAL;
	}

	__weak void board_mem_get_layout(u64 *phys_sdram_1_start,
	u64 *phys_sdram_1_size,
	u64 *phys_sdram_2_start,
	u64 *phys_sdram_2_size)
	{
	*phys_sdram_1_start = PHYS_SDRAM_1;
	*phys_sdram_1_size = PHYS_SDRAM_1_SIZE;
	*phys_sdram_2_start = PHYS_SDRAM_2;
	*phys_sdram_2_size = PHYS_SDRAM_2_SIZE;
	}

	phys_size_t get_effective_memsize(void)
	{
	sc_rm_mr_t mr;
	sc_faddr_t start, end, end1, start_aligned;
	u64 phys_sdram_1_start, phys_sdram_1_size;
	u64 phys_sdram_2_start, phys_sdram_2_size;
	int err;

	board_mem_get_layout(&phys_sdram_1_start, &phys_sdram_1_size,
	&phys_sdram_2_start, &phys_sdram_2_size);


	end1 = (sc_faddr_t)phys_sdram_1_start + phys_sdram_1_size;
	for (mr = 0; mr < 64; mr++) {
	err = get_owned_memreg(mr, &start, &end);
	if (!err) {
	start_aligned = roundup(start, MEMSTART_ALIGNMENT);
	/* Too small memory region, not use it */
	if (start_aligned > end)
	continue;

	/* Find the memory region runs the U-Boot */
	if (start >= phys_sdram_1_start && start <= end1 &&
	(start <= CONFIG_TEXT_BASE &&
	end >= CONFIG_TEXT_BASE)) {
	if ((end + 1) <=
	((sc_faddr_t)phys_sdram_1_start +
	phys_sdram_1_size))
	return (end - phys_sdram_1_start + 1);
	else
	return phys_sdram_1_size;
	}
	}
	}

	return phys_sdram_1_size;
	}

	int dram_init(void)
	{
	sc_rm_mr_t mr;
	sc_faddr_t start, end, end1, end2;
	u64 phys_sdram_1_start, phys_sdram_1_size;
	u64 phys_sdram_2_start, phys_sdram_2_size;
	int err;

	board_mem_get_layout(&phys_sdram_1_start, &phys_sdram_1_size,
	&phys_sdram_2_start, &phys_sdram_2_size);

	end1 = (sc_faddr_t)phys_sdram_1_start + phys_sdram_1_size;
	end2 = (sc_faddr_t)phys_sdram_2_start + phys_sdram_2_size;
	for (mr = 0; mr < 64; mr++) {
	err = get_owned_memreg(mr, &start, &end);
	if (!err) {
	start = roundup(start, MEMSTART_ALIGNMENT);
	/* Too small memory region, not use it */
	if (start > end)
	continue;

	if (start >= phys_sdram_1_start && start <= end1) {
	if ((end + 1) <= end1)
	gd->ram_size += end - start + 1;
	else
	gd->ram_size += end1 - start;
	} else if (start >= phys_sdram_2_start &&
	start <= end2) {
	if ((end + 1) <= end2)
	gd->ram_size += end - start + 1;
	else
	gd->ram_size += end2 - start;
	}
	}
	}

	/* If error, set to the default value */
	if (!gd->ram_size) {
	gd->ram_size = phys_sdram_1_size;
	gd->ram_size += phys_sdram_2_size;
	}
	return 0;
	}

	static void dram_bank_sort(int current_bank)
	{
	phys_addr_t start;
	phys_size_t size;

	while (current_bank > 0) {
	if (gd->bd->bi_dram[current_bank - 1].start >
	gd->bd->bi_dram[current_bank].start) {
	start = gd->bd->bi_dram[current_bank - 1].start;
	size = gd->bd->bi_dram[current_bank - 1].size;

	gd->bd->bi_dram[current_bank - 1].start =
	gd->bd->bi_dram[current_bank].start;
	gd->bd->bi_dram[current_bank - 1].size =
	gd->bd->bi_dram[current_bank].size;

	gd->bd->bi_dram[current_bank].start = start;
	gd->bd->bi_dram[current_bank].size = size;
	}
	current_bank--;
	}
	}

	int dram_init_banksize(void)
	{
	sc_rm_mr_t mr;
	sc_faddr_t start, end, end1, end2;
	int i = 0;
	u64 phys_sdram_1_start, phys_sdram_1_size;
	u64 phys_sdram_2_start, phys_sdram_2_size;
	int err;

	board_mem_get_layout(&phys_sdram_1_start, &phys_sdram_1_size,
	&phys_sdram_2_start, &phys_sdram_2_size);

	end1 = (sc_faddr_t)phys_sdram_1_start + phys_sdram_1_size;
	end2 = (sc_faddr_t)phys_sdram_2_start + phys_sdram_2_size;
	for (mr = 0; mr < 64 && i < CONFIG_NR_DRAM_BANKS; mr++) {
	err = get_owned_memreg(mr, &start, &end);
	if (!err) {
	start = roundup(start, MEMSTART_ALIGNMENT);
	if (start > end) /* Small memory region, no use it */
	continue;

	if (start >= phys_sdram_1_start && start <= end1) {
	gd->bd->bi_dram[i].start = start;

	if ((end + 1) <= end1)
	gd->bd->bi_dram[i].size =
	end - start + 1;
	else
	gd->bd->bi_dram[i].size = end1 - start;

	dram_bank_sort(i);
	i++;
	} else if (start >= phys_sdram_2_start && start <= end2) {
	gd->bd->bi_dram[i].start = start;

	if ((end + 1) <= end2)
	gd->bd->bi_dram[i].size =
	end - start + 1;
	else
	gd->bd->bi_dram[i].size = end2 - start;

	dram_bank_sort(i);
	i++;
	}
	}
	}

	/* If error, set to the default value */
	if (!i) {
	gd->bd->bi_dram[0].start = phys_sdram_1_start;
	gd->bd->bi_dram[0].size = phys_sdram_1_size;
	gd->bd->bi_dram[1].start = phys_sdram_2_start;
	gd->bd->bi_dram[1].size = phys_sdram_2_size;
	}

	return 0;
	}

	static u64 get_block_attrs(sc_faddr_t addr_start)
	{
	u64 attr = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) \| PTE_BLOCK_NON_SHARE \|
	PTE_BLOCK_PXN \| PTE_BLOCK_UXN;
	u64 phys_sdram_1_start, phys_sdram_1_size;
	u64 phys_sdram_2_start, phys_sdram_2_size;

	board_mem_get_layout(&phys_sdram_1_start, &phys_sdram_1_size,
	&phys_sdram_2_start, &phys_sdram_2_size);

	if ((addr_start >= phys_sdram_1_start &&
	addr_start <= ((sc_faddr_t)phys_sdram_1_start + phys_sdram_1_size)) \|\|
	(addr_start >= phys_sdram_2_start &&
	addr_start <= ((sc_faddr_t)phys_sdram_2_start + phys_sdram_2_size)))
	return (PTE_BLOCK_MEMTYPE(MT_NORMAL) \| PTE_BLOCK_OUTER_SHARE);

	return attr;
	}

	static u64 get_block_size(sc_faddr_t addr_start, sc_faddr_t addr_end)
	{
	sc_faddr_t end1, end2;
	u64 phys_sdram_1_start, phys_sdram_1_size;
	u64 phys_sdram_2_start, phys_sdram_2_size;

	board_mem_get_layout(&phys_sdram_1_start, &phys_sdram_1_size,
	&phys_sdram_2_start, &phys_sdram_2_size);


	end1 = (sc_faddr_t)phys_sdram_1_start + phys_sdram_1_size;
	end2 = (sc_faddr_t)phys_sdram_2_start + phys_sdram_2_size;

	if (addr_start >= phys_sdram_1_start && addr_start <= end1) {
	if ((addr_end + 1) > end1)
	return end1 - addr_start;
	} else if (addr_start >= phys_sdram_2_start && addr_start <= end2) {
	if ((addr_end + 1) > end2)
	return end2 - addr_start;
	}

	return (addr_end - addr_start + 1);
	}

	#define MAX_PTE_ENTRIES 512
	#define MAX_MEM_MAP_REGIONS 16

	static struct mm_region imx8_mem_map[MAX_MEM_MAP_REGIONS];
	struct mm_region *mem_map = imx8_mem_map;

	void enable_caches(void)
	{
	sc_rm_mr_t mr;
	sc_faddr_t start, end;
	int err, i;

	/* Create map for registers access from 0x1c000000 to 0x80000000*/
	imx8_mem_map[0].virt = 0x1c000000UL;
	imx8_mem_map[0].phys = 0x1c000000UL;
	imx8_mem_map[0].size = 0x64000000UL;
	imx8_mem_map[0].attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) \|
	PTE_BLOCK_NON_SHARE \| PTE_BLOCK_PXN \| PTE_BLOCK_UXN;

	i = 1;
	for (mr = 0; mr < 64 && i < MAX_MEM_MAP_REGIONS; mr++) {
	err = get_owned_memreg(mr, &start, &end);
	if (!err) {
	imx8_mem_map[i].virt = start;
	imx8_mem_map[i].phys = start;
	imx8_mem_map[i].size = get_block_size(start, end);
	imx8_mem_map[i].attrs = get_block_attrs(start);
	i++;
	}
	}

	if (i < MAX_MEM_MAP_REGIONS) {
	imx8_mem_map[i].size = 0;
	imx8_mem_map[i].attrs = 0;
	} else {
	puts("Error, need more MEM MAP REGIONS reserved\n");
	icache_enable();
	return;
	}

	for (i = 0; i < MAX_MEM_MAP_REGIONS; i++) {
	debug("[%d] vir = 0x%llx phys = 0x%llx size = 0x%llx attrs = 0x%llx\n",
	i, imx8_mem_map[i].virt, imx8_mem_map[i].phys,
	imx8_mem_map[i].size, imx8_mem_map[i].attrs);
	}

	icache_enable();
	dcache_enable();
	}

	#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
	u64 get_page_table_size(void)
	{
	u64 one_pt = MAX_PTE_ENTRIES * sizeof(u64);
	u64 size = 0;

	/*
	* For each memory region, the max table size:
	* 2 level 3 tables + 2 level 2 tables + 1 level 1 table
	*/
	size = (2 + 2 + 1) * one_pt * MAX_MEM_MAP_REGIONS + one_pt;

	/*
	* We need to duplicate our page table once to have an emergency pt to
	* resort to when splitting page tables later on
	*/
	size *= 2;

	/*
	* We may need to split page tables later on if dcache settings change,
	* so reserve up to 4 (random pick) page tables for that.
	*/
	size += one_pt * 4;

	return size;
	}
	#endif

	#if defined(CONFIG_IMX8QM)
	#define FUSE_MAC0_WORD0 452
	#define FUSE_MAC0_WORD1 453
	#define FUSE_MAC1_WORD0 454
	#define FUSE_MAC1_WORD1 455
	#elif defined(CONFIG_IMX8QXP)
	#define FUSE_MAC0_WORD0 708
	#define FUSE_MAC0_WORD1 709
	#define FUSE_MAC1_WORD0 710
	#define FUSE_MAC1_WORD1 711
	#endif

	void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
	{
	u32 word[2], val[2] = {};
	int i, ret;

	if (dev_id == 0) {
	word[0] = FUSE_MAC0_WORD0;
	word[1] = FUSE_MAC0_WORD1;
	} else {
	word[0] = FUSE_MAC1_WORD0;
	word[1] = FUSE_MAC1_WORD1;
	}

	for (i = 0; i < 2; i++) {
	ret = sc_misc_otp_fuse_read(-1, word[i], &val[i]);
	if (ret < 0)
	goto err;
	}

	mac[0] = val[0];
	mac[1] = val[0] >> 8;
	mac[2] = val[0] >> 16;
	mac[3] = val[0] >> 24;
	mac[4] = val[1];
	mac[5] = val[1] >> 8;

	debug("%s: MAC%d: %02x.%02x.%02x.%02x.%02x.%02x\n",
	__func__, dev_id, mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
	return;
	err:
	printf("%s: fuse %d, err: %d\n", __func__, word[i], ret);
	}

	u32 get_cpu_rev(void)
	{
	u32 id = 0, rev = 0;
	int ret;

	ret = sc_misc_get_control(-1, SC_R_SYSTEM, SC_C_ID, &id);
	if (ret)
	return 0;

	rev = (id >> 5) & 0xf;
	id = (id & 0x1f) + MXC_SOC_IMX8; /* Dummy ID for chip */

	return (id << 12) \| rev;
	}

	void board_boot_order(u32 *spl_boot_list)
	{
	spl_boot_list[0] = spl_boot_device();

	if (spl_boot_list[0] == BOOT_DEVICE_SPI) {
	/* Check whether we own the flexspi0, if not, use NOR boot */
	if (!sc_rm_is_resource_owned(-1, SC_R_FSPI_0))
	spl_boot_list[0] = BOOT_DEVICE_NOR;
	}
	}

	bool m4_parts_booted(void)
	{
	sc_rm_pt_t m4_parts[2];
	int err;

	err = sc_rm_get_resource_owner(-1, SC_R_M4_0_PID0, &m4_parts[0]);
	if (err) {
	printf("%s get resource [%d] owner error: %d\n", __func__,
	SC_R_M4_0_PID0, err);
	return false;
	}

	if (sc_pm_is_partition_started(-1, m4_parts[0]))
	return true;

	if (is_imx8qm()) {
	err = sc_rm_get_resource_owner(-1, SC_R_M4_1_PID0, &m4_parts[1]);
	if (err) {
	printf("%s get resource [%d] owner error: %d\n",
	__func__, SC_R_M4_1_PID0, err);
	return false;
	}

	if (sc_pm_is_partition_started(-1, m4_parts[1]))
	return true;
	}

	return false;
	}