| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <assert.h> |
| #include <arch/mmu.h> |
| #include <cbfs.h> |
| #include <cbmem.h> |
| #include <commonlib/bsd/mem_chip_info.h> |
| #include <console/cbmem_console.h> |
| #include <console/console.h> |
| #include <fmap.h> |
| #include <mrc_cache.h> |
| #include <reset.h> |
| #include <security/vboot/misc.h> |
| #include <soc/mmu.h> |
| #include <soc/mmu_common.h> |
| #include <soc/qclib_common.h> |
| #include <soc/symbols_common.h> |
| #include <string.h> |
| #include <vb2_api.h> |
| |
| #define QCLIB_VERSION 0 |
| |
| /* store QcLib return data until CBMEM_CREATION_HOOK runs */ |
| static void *mem_chip_addr; |
| |
| static void write_mem_chip_information(struct qclib_cb_if_table_entry *te) |
| { |
| if (te->size > sizeof(struct mem_chip_info) && |
| te->size == mem_chip_info_size((void *)te->blob_address)) { |
| /* Save mem_chip_addr in global variable ahead of hook running */ |
| mem_chip_addr = (void *)te->blob_address; |
| } |
| } |
| |
| static void add_mem_chip_info(int unused) |
| { |
| void *mem_region_base = NULL; |
| size_t size; |
| |
| if (!mem_chip_addr) { |
| printk(BIOS_ERR, "Did not receive valid mem_chip_info from QcLib!"); |
| return; |
| } |
| |
| size = mem_chip_info_size(mem_chip_addr); |
| |
| /* Add cbmem table */ |
| mem_region_base = cbmem_add(CBMEM_ID_MEM_CHIP_INFO, size); |
| ASSERT(mem_region_base != NULL); |
| |
| /* Migrate the data into CBMEM */ |
| memcpy(mem_region_base, mem_chip_addr, size); |
| } |
| |
| CBMEM_CREATION_HOOK(add_mem_chip_info); |
| |
| struct qclib_cb_if_table qclib_cb_if_table = { |
| .magic = QCLIB_MAGIC_NUMBER, |
| .version = QCLIB_INTERFACE_VERSION, |
| .num_entries = 0, |
| .max_entries = QCLIB_MAX_NUMBER_OF_ENTRIES, |
| .global_attributes = 0, |
| .reserved = 0, |
| }; |
| |
| const char *qclib_file_default(enum qclib_cbfs_file file) |
| { |
| switch (file) { |
| case QCLIB_CBFS_PMICCFG: |
| return CONFIG_CBFS_PREFIX "/pmiccfg"; |
| case QCLIB_CBFS_QCSDI: |
| return CONFIG_CBFS_PREFIX "/qcsdi"; |
| case QCLIB_CBFS_QCLIB: |
| return CONFIG_CBFS_PREFIX "/qclib"; |
| case QCLIB_CBFS_DCB: |
| return CONFIG_CBFS_PREFIX "/dcb"; |
| default: |
| die("unknown QcLib file %d", file); |
| } |
| } |
| |
| const char *qclib_file(enum qclib_cbfs_file file) |
| __attribute__((weak, alias("qclib_file_default"))); |
| |
| void qclib_add_if_table_entry(const char *name, void *base, |
| uint32_t size, uint32_t attrs) |
| { |
| struct qclib_cb_if_table_entry *te = |
| &qclib_cb_if_table.te[qclib_cb_if_table.num_entries++]; |
| assert(qclib_cb_if_table.num_entries <= qclib_cb_if_table.max_entries); |
| strncpy(te->name, name, sizeof(te->name) - 1); |
| te->blob_address = (uintptr_t)base; |
| te->size = size; |
| te->blob_attributes = attrs; |
| } |
| |
| static void write_ddr_information(struct qclib_cb_if_table_entry *te) |
| { |
| uint64_t ddr_size; |
| |
| /* Save DDR info in SRAM region to share with ramstage */ |
| ddr_region->offset = te->blob_address; |
| ddr_size = te->size; |
| ddr_region->size = ddr_size * MiB; |
| |
| /* Use DDR info to configure MMU */ |
| qc_mmu_dram_config_post_dram_init((void *)ddr_region->offset, |
| (size_t)ddr_region->size); |
| } |
| |
| static void write_qclib_log_to_cbmemc(struct qclib_cb_if_table_entry *te) |
| { |
| int i; |
| char *ptr = (char *)te->blob_address; |
| |
| for (i = 0; i < te->size; i++) |
| __cbmemc_tx_byte(*ptr++); |
| } |
| |
| static void write_table_entry(struct qclib_cb_if_table_entry *te) |
| { |
| |
| if (!strncmp(QCLIB_TE_DDR_INFORMATION, te->name, |
| sizeof(te->name))) { |
| |
| write_ddr_information(te); |
| |
| } else if (!strncmp(QCLIB_TE_DDR_TRAINING_DATA, te->name, |
| sizeof(te->name))) { |
| assert(!mrc_cache_stash_data(MRC_TRAINING_DATA, QCLIB_VERSION, |
| (const void *)te->blob_address, te->size)); |
| |
| } else if (!strncmp(QCLIB_TE_LIMITS_CFG_DATA, te->name, |
| sizeof(te->name))) { |
| |
| assert(fmap_overwrite_area(QCLIB_FR_LIMITS_CFG_DATA, |
| (const void *)te->blob_address, te->size)); |
| |
| } else if (!strncmp(QCLIB_TE_QCLIB_LOG_BUFFER, te->name, |
| sizeof(te->name))) { |
| |
| write_qclib_log_to_cbmemc(te); |
| |
| } else if (!strncmp(QCLIB_TE_MEM_CHIP_INFO, te->name, |
| sizeof(te->name))) { |
| write_mem_chip_information(te); |
| |
| } else { |
| |
| printk(BIOS_WARNING, "%s write not implemented\n", te->name); |
| printk(BIOS_WARNING, " blob_address[%llx]..size[%x]\n", |
| te->blob_address, te->size); |
| |
| } |
| } |
| |
| static void dump_te_table(void) |
| { |
| struct qclib_cb_if_table_entry *te; |
| int i; |
| |
| for (i = 0; i < qclib_cb_if_table.num_entries; i++) { |
| te = &qclib_cb_if_table.te[i]; |
| printk(BIOS_DEBUG, "[%s][%llx][%x][%x]\n", |
| te->name, te->blob_address, |
| te->size, te->blob_attributes); |
| } |
| } |
| |
| __weak int qclib_soc_blob_load(void) { return 0; } |
| |
| void qclib_load_and_run(void) |
| { |
| int i; |
| ssize_t data_size; |
| struct mmu_context pre_qclib_mmu_context; |
| |
| /* zero ddr_information SRAM region, needs new data each boot */ |
| memset(ddr_region, 0, sizeof(struct region)); |
| |
| /* output area, QCLib copies console log buffer out */ |
| if (CONFIG(CONSOLE_CBMEM)) |
| qclib_add_if_table_entry(QCLIB_TE_QCLIB_LOG_BUFFER, |
| _qclib_serial_log, |
| REGION_SIZE(qclib_serial_log), 0); |
| |
| /* output area, QCLib fills in DDR details */ |
| qclib_add_if_table_entry(QCLIB_TE_DDR_INFORMATION, NULL, 0, 0); |
| |
| /* Attempt to load DDR Training Blob */ |
| data_size = mrc_cache_load_current(MRC_TRAINING_DATA, QCLIB_VERSION, |
| _ddr_training, REGION_SIZE(ddr_training)); |
| if (data_size < 0) { |
| printk(BIOS_ERR, "Unable to load previous training data.\n"); |
| memset(_ddr_training, 0, REGION_SIZE(ddr_training)); |
| } |
| qclib_add_if_table_entry(QCLIB_TE_DDR_TRAINING_DATA, |
| _ddr_training, REGION_SIZE(ddr_training), 0); |
| |
| /* Address and size of this entry will be filled in by QcLib. */ |
| qclib_add_if_table_entry(QCLIB_TE_MEM_CHIP_INFO, NULL, 0, 0); |
| |
| /* Attempt to load PMICCFG Blob */ |
| data_size = cbfs_load(qclib_file(QCLIB_CBFS_PMICCFG), |
| _pmic, REGION_SIZE(pmic)); |
| if (!data_size) { |
| printk(BIOS_ERR, "[%s] /pmiccfg failed\n", __func__); |
| goto fail; |
| } |
| qclib_add_if_table_entry(QCLIB_TE_PMIC_SETTINGS, _pmic, data_size, 0); |
| |
| /* Attempt to load DCB Blob */ |
| data_size = cbfs_load(qclib_file(QCLIB_CBFS_DCB), |
| _dcb, REGION_SIZE(dcb)); |
| if (!data_size) { |
| printk(BIOS_ERR, "[%s] /dcb failed\n", __func__); |
| goto fail; |
| } |
| qclib_add_if_table_entry(QCLIB_TE_DCB_SETTINGS, _dcb, data_size, 0); |
| |
| /* hook for SoC specific binary blob loads */ |
| if (qclib_soc_blob_load()) { |
| printk(BIOS_ERR, "qclib_soc_blob_load failed\n"); |
| goto fail; |
| } |
| |
| /* Enable QCLib serial output, based on Kconfig */ |
| if (CONFIG(CONSOLE_SERIAL)) |
| qclib_cb_if_table.global_attributes = |
| QCLIB_GA_ENABLE_UART_LOGGING; |
| |
| if (CONFIG(QC_SDI_ENABLE) && (!CONFIG(VBOOT) || |
| !vboot_is_gbb_flag_set(VB2_GBB_FLAG_RUNNING_FAFT))) { |
| struct prog qcsdi = |
| PROG_INIT(PROG_REFCODE, |
| qclib_file(QCLIB_CBFS_QCSDI)); |
| |
| /* Attempt to load QCSDI elf */ |
| if (cbfs_prog_stage_load(&qcsdi)) |
| goto fail; |
| |
| qclib_add_if_table_entry(QCLIB_TE_QCSDI, |
| prog_entry(&qcsdi), prog_size(&qcsdi), 0); |
| printk(BIOS_INFO, "qcsdi.entry[%p]\n", qcsdi.entry); |
| } |
| |
| dump_te_table(); |
| |
| /* Attempt to load QCLib elf */ |
| struct prog qclib = |
| PROG_INIT(PROG_REFCODE, qclib_file(QCLIB_CBFS_QCLIB)); |
| |
| if (cbfs_prog_stage_load(&qclib)) |
| goto fail; |
| |
| prog_set_entry(&qclib, prog_entry(&qclib), &qclib_cb_if_table); |
| |
| printk(BIOS_DEBUG, "\n\n\nQCLib is about to Initialize DDR\n"); |
| printk(BIOS_DEBUG, "Global Attributes[%x]..Table Entries Count[%d]\n", |
| qclib_cb_if_table.global_attributes, |
| qclib_cb_if_table.num_entries); |
| printk(BIOS_DEBUG, "Jumping to QCLib code at %p(%p)\n", |
| prog_entry(&qclib), prog_entry_arg(&qclib)); |
| |
| /* back-up mmu context before disabling mmu and executing qclib */ |
| mmu_save_context(&pre_qclib_mmu_context); |
| /* disable mmu before jumping to qclib. mmu_disable also |
| flushes and invalidates caches before disabling mmu. */ |
| mmu_disable(); |
| |
| prog_run(&qclib); |
| |
| /* Before returning, QCLib flushes cache and disables mmu. |
| Explicitly disable mmu (flush, invalidate and disable mmu) |
| before re-enabling mmu with backed-up mmu context */ |
| mmu_disable(); |
| mmu_restore_context(&pre_qclib_mmu_context); |
| mmu_enable(); |
| |
| if (qclib_cb_if_table.global_attributes & QCLIB_GA_FORCE_COLD_REBOOT) { |
| printk(BIOS_NOTICE, "QcLib requested cold reboot\n"); |
| board_reset(); |
| } |
| |
| /* step through I/F table, handling return values */ |
| for (i = 0; i < qclib_cb_if_table.num_entries; i++) |
| if (qclib_cb_if_table.te[i].blob_attributes & |
| QCLIB_BA_SAVE_TO_STORAGE) |
| write_table_entry(&qclib_cb_if_table.te[i]); |
| |
| /* confirm that we received valid ddr information from QCLib */ |
| assert((uintptr_t)_dram == region_offset(ddr_region) && |
| region_sz(ddr_region) >= (u8 *)cbmem_top() - _dram); |
| |
| printk(BIOS_DEBUG, "QCLib completed\n\n\n"); |
| |
| return; |
| |
| fail: |
| die("Couldn't run QCLib.\n"); |
| } |