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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * K3: Common Architecture initialization
- *
- * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
- * Lokesh Vutla <lokeshvutla@ti.com>
- */
- #include <common.h>
- #include <cpu_func.h>
- #include <image.h>
- #include <init.h>
- #include <log.h>
- #include <spl.h>
- #include <asm/global_data.h>
- #include "common.h"
- #include <dm.h>
- #include <remoteproc.h>
- #include <asm/cache.h>
- #include <linux/soc/ti/ti_sci_protocol.h>
- #include <fdt_support.h>
- #include <asm/arch/sys_proto.h>
- #include <asm/hardware.h>
- #include <asm/io.h>
- #include <fs_loader.h>
- #include <fs.h>
- #include <env.h>
- #include <elf.h>
- #include <soc.h>
- struct ti_sci_handle *get_ti_sci_handle(void)
- {
- struct udevice *dev;
- int ret;
- ret = uclass_get_device_by_driver(UCLASS_FIRMWARE,
- DM_DRIVER_GET(ti_sci), &dev);
- if (ret)
- panic("Failed to get SYSFW (%d)\n", ret);
- return (struct ti_sci_handle *)ti_sci_get_handle_from_sysfw(dev);
- }
- void k3_sysfw_print_ver(void)
- {
- struct ti_sci_handle *ti_sci = get_ti_sci_handle();
- char fw_desc[sizeof(ti_sci->version.firmware_description) + 1];
- /*
- * Output System Firmware version info. Note that since the
- * 'firmware_description' field is not guaranteed to be zero-
- * terminated we manually add a \0 terminator if needed. Further
- * note that we intentionally no longer rely on the extended
- * printf() formatter '%.*s' to not having to require a more
- * full-featured printf() implementation.
- */
- strncpy(fw_desc, ti_sci->version.firmware_description,
- sizeof(ti_sci->version.firmware_description));
- fw_desc[sizeof(fw_desc) - 1] = '\0';
- printf("SYSFW ABI: %d.%d (firmware rev 0x%04x '%s')\n",
- ti_sci->version.abi_major, ti_sci->version.abi_minor,
- ti_sci->version.firmware_revision, fw_desc);
- }
- void mmr_unlock(phys_addr_t 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);
- }
- bool is_rom_loaded_sysfw(struct rom_extended_boot_data *data)
- {
- if (strncmp(data->header, K3_ROM_BOOT_HEADER_MAGIC, 7))
- return false;
- return data->num_components > 1;
- }
- DECLARE_GLOBAL_DATA_PTR;
- #ifdef CONFIG_K3_EARLY_CONS
- int early_console_init(void)
- {
- struct udevice *dev;
- int ret;
- gd->baudrate = CONFIG_BAUDRATE;
- ret = uclass_get_device_by_seq(UCLASS_SERIAL, CONFIG_K3_EARLY_CONS_IDX,
- &dev);
- if (ret) {
- printf("Error getting serial dev for early console! (%d)\n",
- ret);
- return ret;
- }
- gd->cur_serial_dev = dev;
- gd->flags |= GD_FLG_SERIAL_READY;
- gd->have_console = 1;
- return 0;
- }
- #endif
- #ifdef CONFIG_SYS_K3_SPL_ATF
- void init_env(void)
- {
- #ifdef CONFIG_SPL_ENV_SUPPORT
- char *part;
- env_init();
- env_relocate();
- switch (spl_boot_device()) {
- case BOOT_DEVICE_MMC2:
- part = env_get("bootpart");
- env_set("storage_interface", "mmc");
- env_set("fw_dev_part", part);
- break;
- case BOOT_DEVICE_SPI:
- env_set("storage_interface", "ubi");
- env_set("fw_ubi_mtdpart", "UBI");
- env_set("fw_ubi_volume", "UBI0");
- break;
- default:
- printf("%s from device %u not supported!\n",
- __func__, spl_boot_device());
- return;
- }
- #endif
- }
- #ifdef CONFIG_FS_LOADER
- int load_firmware(char *name_fw, char *name_loadaddr, u32 *loadaddr)
- {
- struct udevice *fsdev;
- char *name = NULL;
- int size = 0;
- *loadaddr = 0;
- #ifdef CONFIG_SPL_ENV_SUPPORT
- switch (spl_boot_device()) {
- case BOOT_DEVICE_MMC2:
- name = env_get(name_fw);
- *loadaddr = env_get_hex(name_loadaddr, *loadaddr);
- break;
- default:
- printf("Loading rproc fw image from device %u not supported!\n",
- spl_boot_device());
- return 0;
- }
- #endif
- if (!*loadaddr)
- return 0;
- if (!uclass_get_device(UCLASS_FS_FIRMWARE_LOADER, 0, &fsdev)) {
- size = request_firmware_into_buf(fsdev, name, (void *)*loadaddr,
- 0, 0);
- }
- return size;
- }
- #else
- int load_firmware(char *name_fw, char *name_loadaddr, u32 *loadaddr)
- {
- return 0;
- }
- #endif
- __weak void start_non_linux_remote_cores(void)
- {
- }
- void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
- {
- typedef void __noreturn (*image_entry_noargs_t)(void);
- struct ti_sci_handle *ti_sci = get_ti_sci_handle();
- u32 loadaddr = 0;
- int ret, size;
- /* Release all the exclusive devices held by SPL before starting ATF */
- ti_sci->ops.dev_ops.release_exclusive_devices(ti_sci);
- ret = rproc_init();
- if (ret)
- panic("rproc failed to be initialized (%d)\n", ret);
- init_env();
- start_non_linux_remote_cores();
- size = load_firmware("name_mcur5f0_0fw", "addr_mcur5f0_0load",
- &loadaddr);
- /*
- * It is assumed that remoteproc device 1 is the corresponding
- * Cortex-A core which runs ATF. Make sure DT reflects the same.
- */
- ret = rproc_load(1, spl_image->entry_point, 0x200);
- if (ret)
- panic("%s: ATF failed to load on rproc (%d)\n", __func__, ret);
- /* Add an extra newline to differentiate the ATF logs from SPL */
- printf("Starting ATF on ARM64 core...\n\n");
- ret = rproc_start(1);
- if (ret)
- panic("%s: ATF failed to start on rproc (%d)\n", __func__, ret);
- if (!(size > 0 && valid_elf_image(loadaddr))) {
- debug("Shutting down...\n");
- release_resources_for_core_shutdown();
- while (1)
- asm volatile("wfe");
- }
- image_entry_noargs_t image_entry =
- (image_entry_noargs_t)load_elf_image_phdr(loadaddr);
- image_entry();
- }
- #endif
- #if defined(CONFIG_OF_LIBFDT)
- int fdt_fixup_msmc_ram(void *blob, char *parent_path, char *node_name)
- {
- u64 msmc_start = 0, msmc_end = 0, msmc_size, reg[2];
- struct ti_sci_handle *ti_sci = get_ti_sci_handle();
- int ret, node, subnode, len, prev_node;
- u32 range[4], addr, size;
- const fdt32_t *sub_reg;
- ti_sci->ops.core_ops.query_msmc(ti_sci, &msmc_start, &msmc_end);
- msmc_size = msmc_end - msmc_start + 1;
- debug("%s: msmc_start = 0x%llx, msmc_size = 0x%llx\n", __func__,
- msmc_start, msmc_size);
- /* find or create "msmc_sram node */
- ret = fdt_path_offset(blob, parent_path);
- if (ret < 0)
- return ret;
- node = fdt_find_or_add_subnode(blob, ret, node_name);
- if (node < 0)
- return node;
- ret = fdt_setprop_string(blob, node, "compatible", "mmio-sram");
- if (ret < 0)
- return ret;
- reg[0] = cpu_to_fdt64(msmc_start);
- reg[1] = cpu_to_fdt64(msmc_size);
- ret = fdt_setprop(blob, node, "reg", reg, sizeof(reg));
- if (ret < 0)
- return ret;
- fdt_setprop_cell(blob, node, "#address-cells", 1);
- fdt_setprop_cell(blob, node, "#size-cells", 1);
- range[0] = 0;
- range[1] = cpu_to_fdt32(msmc_start >> 32);
- range[2] = cpu_to_fdt32(msmc_start & 0xffffffff);
- range[3] = cpu_to_fdt32(msmc_size);
- ret = fdt_setprop(blob, node, "ranges", range, sizeof(range));
- if (ret < 0)
- return ret;
- subnode = fdt_first_subnode(blob, node);
- prev_node = 0;
- /* Look for invalid subnodes and delete them */
- while (subnode >= 0) {
- sub_reg = fdt_getprop(blob, subnode, "reg", &len);
- addr = fdt_read_number(sub_reg, 1);
- sub_reg++;
- size = fdt_read_number(sub_reg, 1);
- debug("%s: subnode = %d, addr = 0x%x. size = 0x%x\n", __func__,
- subnode, addr, size);
- if (addr + size > msmc_size ||
- !strncmp(fdt_get_name(blob, subnode, &len), "sysfw", 5) ||
- !strncmp(fdt_get_name(blob, subnode, &len), "l3cache", 7)) {
- fdt_del_node(blob, subnode);
- debug("%s: deleting subnode %d\n", __func__, subnode);
- if (!prev_node)
- subnode = fdt_first_subnode(blob, node);
- else
- subnode = fdt_next_subnode(blob, prev_node);
- } else {
- prev_node = subnode;
- subnode = fdt_next_subnode(blob, prev_node);
- }
- }
- return 0;
- }
- int fdt_disable_node(void *blob, char *node_path)
- {
- int offs;
- int ret;
- offs = fdt_path_offset(blob, node_path);
- if (offs < 0) {
- printf("Node %s not found.\n", node_path);
- return offs;
- }
- ret = fdt_setprop_string(blob, offs, "status", "disabled");
- if (ret < 0) {
- printf("Could not add status property to node %s: %s\n",
- node_path, fdt_strerror(ret));
- return ret;
- }
- return 0;
- }
- #endif
- #ifndef CONFIG_SYSRESET
- void reset_cpu(ulong ignored)
- {
- }
- #endif
- #if defined(CONFIG_DISPLAY_CPUINFO)
- int print_cpuinfo(void)
- {
- struct udevice *soc;
- char name[64];
- int ret;
- printf("SoC: ");
- ret = soc_get(&soc);
- if (ret) {
- printf("UNKNOWN\n");
- return 0;
- }
- ret = soc_get_family(soc, name, 64);
- if (!ret) {
- printf("%s ", name);
- }
- ret = soc_get_revision(soc, name, 64);
- if (!ret) {
- printf("%s\n", name);
- }
- return 0;
- }
- #endif
- bool soc_is_j721e(void)
- {
- u32 soc;
- soc = (readl(CTRLMMR_WKUP_JTAG_ID) &
- JTAG_ID_PARTNO_MASK) >> JTAG_ID_PARTNO_SHIFT;
- return soc == J721E;
- }
- bool soc_is_j7200(void)
- {
- u32 soc;
- soc = (readl(CTRLMMR_WKUP_JTAG_ID) &
- JTAG_ID_PARTNO_MASK) >> JTAG_ID_PARTNO_SHIFT;
- return soc == J7200;
- }
- #ifdef CONFIG_ARM64
- void board_prep_linux(bootm_headers_t *images)
- {
- debug("Linux kernel Image start = 0x%lx end = 0x%lx\n",
- images->os.start, images->os.end);
- __asm_flush_dcache_range(images->os.start,
- ROUND(images->os.end,
- CONFIG_SYS_CACHELINE_SIZE));
- }
- #endif
- #ifdef CONFIG_CPU_V7R
- void disable_linefill_optimization(void)
- {
- u32 actlr;
- /*
- * On K3 devices there are 2 conditions where R5F can deadlock:
- * 1.When software is performing series of store operations to
- * cacheable write back/write allocate memory region and later
- * on software execute barrier operation (DSB or DMB). R5F may
- * hang at the barrier instruction.
- * 2.When software is performing a mix of load and store operations
- * within a tight loop and store operations are all writing to
- * cacheable write back/write allocates memory regions, R5F may
- * hang at one of the load instruction.
- *
- * To avoid the above two conditions disable linefill optimization
- * inside Cortex R5F.
- */
- asm("mrc p15, 0, %0, c1, c0, 1" : "=r" (actlr));
- actlr |= (1 << 13); /* Set DLFO bit */
- asm("mcr p15, 0, %0, c1, c0, 1" : : "r" (actlr));
- }
- #endif
- void remove_fwl_configs(struct fwl_data *fwl_data, size_t fwl_data_size)
- {
- struct ti_sci_msg_fwl_region region;
- struct ti_sci_fwl_ops *fwl_ops;
- struct ti_sci_handle *ti_sci;
- size_t i, j;
- ti_sci = get_ti_sci_handle();
- fwl_ops = &ti_sci->ops.fwl_ops;
- for (i = 0; i < fwl_data_size; i++) {
- for (j = 0; j < fwl_data[i].regions; j++) {
- region.fwl_id = fwl_data[i].fwl_id;
- region.region = j;
- region.n_permission_regs = 3;
- fwl_ops->get_fwl_region(ti_sci, ®ion);
- if (region.control != 0) {
- pr_debug("Attempting to disable firewall %5d (%25s)\n",
- region.fwl_id, fwl_data[i].name);
- region.control = 0;
- if (fwl_ops->set_fwl_region(ti_sci, ®ion))
- pr_err("Could not disable firewall %5d (%25s)\n",
- region.fwl_id, fwl_data[i].name);
- }
- }
- }
- }
- void spl_enable_dcache(void)
- {
- #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF))
- phys_addr_t ram_top = CONFIG_SYS_SDRAM_BASE;
- dram_init_banksize();
- /* reserve TLB table */
- gd->arch.tlb_size = PGTABLE_SIZE;
- ram_top += get_effective_memsize();
- /* keep ram_top in the 32-bit address space */
- if (ram_top >= 0x100000000)
- ram_top = (phys_addr_t) 0x100000000;
- gd->arch.tlb_addr = ram_top - gd->arch.tlb_size;
- debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr,
- gd->arch.tlb_addr + gd->arch.tlb_size);
- dcache_enable();
- #endif
- }
- #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF))
- void spl_board_prepare_for_boot(void)
- {
- dcache_disable();
- }
- void spl_board_prepare_for_linux(void)
- {
- dcache_disable();
- }
- #endif
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