// SPDX-License-Identifier: GPL-2.0+ /* * J721E: SoC specific initialization * * Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/ * Lokesh Vutla */ #include #include #include #include #include #include #include "common.h" #include #include #include #include #include #ifdef CONFIG_SPL_BUILD static void mmr_unlock(u32 base, u32 partition) { /* Translate the base address */ phys_addr_t part_base = base + partition * CTRL_MMR0_PARTITION_SIZE; /* Unlock the requested partition if locked using two-step sequence */ writel(CTRLMMR_LOCK_KICK0_UNLOCK_VAL, part_base + CTRLMMR_LOCK_KICK0); writel(CTRLMMR_LOCK_KICK1_UNLOCK_VAL, part_base + CTRLMMR_LOCK_KICK1); } static void ctrl_mmr_unlock(void) { /* Unlock all WKUP_CTRL_MMR0 module registers */ mmr_unlock(WKUP_CTRL_MMR0_BASE, 0); mmr_unlock(WKUP_CTRL_MMR0_BASE, 1); mmr_unlock(WKUP_CTRL_MMR0_BASE, 2); mmr_unlock(WKUP_CTRL_MMR0_BASE, 3); mmr_unlock(WKUP_CTRL_MMR0_BASE, 4); mmr_unlock(WKUP_CTRL_MMR0_BASE, 6); mmr_unlock(WKUP_CTRL_MMR0_BASE, 7); /* Unlock all MCU_CTRL_MMR0 module registers */ mmr_unlock(MCU_CTRL_MMR0_BASE, 0); mmr_unlock(MCU_CTRL_MMR0_BASE, 1); mmr_unlock(MCU_CTRL_MMR0_BASE, 2); mmr_unlock(MCU_CTRL_MMR0_BASE, 3); mmr_unlock(MCU_CTRL_MMR0_BASE, 4); /* Unlock all CTRL_MMR0 module registers */ mmr_unlock(CTRL_MMR0_BASE, 0); mmr_unlock(CTRL_MMR0_BASE, 1); mmr_unlock(CTRL_MMR0_BASE, 2); mmr_unlock(CTRL_MMR0_BASE, 3); mmr_unlock(CTRL_MMR0_BASE, 4); mmr_unlock(CTRL_MMR0_BASE, 5); mmr_unlock(CTRL_MMR0_BASE, 6); mmr_unlock(CTRL_MMR0_BASE, 7); } /* * This uninitialized global variable would normal end up in the .bss section, * but the .bss is cleared between writing and reading this variable, so move * it to the .data section. */ u32 bootindex __attribute__((section(".data"))); static void store_boot_index_from_rom(void) { bootindex = *(u32 *)(CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX); } void board_init_f(ulong dummy) { #if defined(CONFIG_K3_J721E_DDRSS) || defined(CONFIG_K3_LOAD_SYSFW) struct udevice *dev; int ret; #endif /* * Cannot delay this further as there is a chance that * K3_BOOT_PARAM_TABLE_INDEX can be over written by SPL MALLOC section. */ store_boot_index_from_rom(); /* Make all control module registers accessible */ ctrl_mmr_unlock(); #ifdef CONFIG_CPU_V7R disable_linefill_optimization(); setup_k3_mpu_regions(); #endif /* Init DM early */ spl_early_init(); #ifdef CONFIG_K3_LOAD_SYSFW /* * Process pinctrl for the serial0 a.k.a. MCU_UART0 module and continue * regardless of the result of pinctrl. Do this without probing the * device, but instead by searching the device that would request the * given sequence number if probed. The UART will be used by the system * firmware (SYSFW) image for various purposes and SYSFW depends on us * to initialize its pin settings. */ ret = uclass_find_device_by_seq(UCLASS_SERIAL, 0, true, &dev); if (!ret) pinctrl_select_state(dev, "default"); /* * Load, start up, and configure system controller firmware. Provide * the U-Boot console init function to the SYSFW post-PM configuration * callback hook, effectively switching on (or over) the console * output. */ k3_sysfw_loader(preloader_console_init); #else /* Prepare console output */ preloader_console_init(); #endif #if defined(CONFIG_CPU_V7R) && defined(CONFIG_K3_AVS0) ret = uclass_get_device_by_driver(UCLASS_MISC, DM_GET_DRIVER(k3_avs), &dev); if (ret) printf("AVS init failed: %d\n", ret); #endif #if defined(CONFIG_K3_J721E_DDRSS) ret = uclass_get_device(UCLASS_RAM, 0, &dev); if (ret) panic("DRAM init failed: %d\n", ret); #endif } u32 spl_boot_mode(const u32 boot_device) { switch (boot_device) { case BOOT_DEVICE_MMC1: return MMCSD_MODE_EMMCBOOT; case BOOT_DEVICE_MMC2: return MMCSD_MODE_FS; default: return MMCSD_MODE_RAW; } } static u32 __get_primary_bootmedia(u32 main_devstat, u32 wkup_devstat) { u32 bootmode = (wkup_devstat & WKUP_DEVSTAT_PRIMARY_BOOTMODE_MASK) >> WKUP_DEVSTAT_PRIMARY_BOOTMODE_SHIFT; bootmode |= (main_devstat & MAIN_DEVSTAT_BOOT_MODE_B_MASK) << BOOT_MODE_B_SHIFT; if (bootmode == BOOT_DEVICE_OSPI || bootmode == BOOT_DEVICE_QSPI) bootmode = BOOT_DEVICE_SPI; if (bootmode == BOOT_DEVICE_MMC2) { u32 port = (main_devstat & MAIN_DEVSTAT_PRIM_BOOTMODE_MMC_PORT_MASK) >> MAIN_DEVSTAT_PRIM_BOOTMODE_PORT_SHIFT; if (port == 0x0) bootmode = BOOT_DEVICE_MMC1; } return bootmode; } u32 spl_boot_device(void) { u32 wkup_devstat = readl(CTRLMMR_WKUP_DEVSTAT); u32 main_devstat; if (wkup_devstat & WKUP_DEVSTAT_MCU_OMLY_MASK) { printf("ERROR: MCU only boot is not yet supported\n"); return BOOT_DEVICE_RAM; } /* MAIN CTRL MMR can only be read if MCU ONLY is 0 */ main_devstat = readl(CTRLMMR_MAIN_DEVSTAT); /* ToDo: Add support for backup boot media */ return __get_primary_bootmedia(main_devstat, wkup_devstat); } #endif #ifdef CONFIG_SYS_K3_SPL_ATF #define J721E_DEV_MCU_RTI0 262 #define J721E_DEV_MCU_RTI1 263 #define J721E_DEV_MCU_ARMSS0_CPU0 250 #define J721E_DEV_MCU_ARMSS0_CPU1 251 void release_resources_for_core_shutdown(void) { struct ti_sci_handle *ti_sci; struct ti_sci_dev_ops *dev_ops; struct ti_sci_proc_ops *proc_ops; int ret; u32 i; const u32 put_device_ids[] = { J721E_DEV_MCU_RTI0, J721E_DEV_MCU_RTI1, }; ti_sci = get_ti_sci_handle(); dev_ops = &ti_sci->ops.dev_ops; proc_ops = &ti_sci->ops.proc_ops; /* Iterate through list of devices to put (shutdown) */ for (i = 0; i < ARRAY_SIZE(put_device_ids); i++) { u32 id = put_device_ids[i]; ret = dev_ops->put_device(ti_sci, id); if (ret) panic("Failed to put device %u (%d)\n", id, ret); } const u32 put_core_ids[] = { J721E_DEV_MCU_ARMSS0_CPU1, J721E_DEV_MCU_ARMSS0_CPU0, /* Handle CPU0 after CPU1 */ }; /* Iterate through list of cores to put (shutdown) */ for (i = 0; i < ARRAY_SIZE(put_core_ids); i++) { u32 id = put_core_ids[i]; /* * Queue up the core shutdown request. Note that this call * needs to be followed up by an actual invocation of an WFE * or WFI CPU instruction. */ ret = proc_ops->proc_shutdown_no_wait(ti_sci, id); if (ret) panic("Failed sending core %u shutdown message (%d)\n", id, ret); } } #endif