14bbc0245SSimon Glass /* 24bbc0245SSimon Glass * Copyright (c) 2016 Google, Inc 34bbc0245SSimon Glass * 44bbc0245SSimon Glass * SPDX-License-Identifier: GPL-2.0 54bbc0245SSimon Glass */ 64bbc0245SSimon Glass 74bbc0245SSimon Glass #include <common.h> 84bbc0245SSimon Glass #include <debug_uart.h> 9*96d4b75cSSimon Glass #include <init_helpers.h> 104bbc0245SSimon Glass #include <spl.h> 114bbc0245SSimon Glass #include <asm/cpu.h> 124bbc0245SSimon Glass #include <asm/mtrr.h> 134bbc0245SSimon Glass #include <asm/processor.h> 144bbc0245SSimon Glass #include <asm-generic/sections.h> 154bbc0245SSimon Glass 164bbc0245SSimon Glass DECLARE_GLOBAL_DATA_PTR; 174bbc0245SSimon Glass 188f60ea00SBin Meng __weak int arch_cpu_init_dm(void) 198f60ea00SBin Meng { 208f60ea00SBin Meng return 0; 218f60ea00SBin Meng } 228f60ea00SBin Meng 234bbc0245SSimon Glass static int x86_spl_init(void) 244bbc0245SSimon Glass { 254bbc0245SSimon Glass /* 264bbc0245SSimon Glass * TODO(sjg@chromium.org): We use this area of RAM for the stack 274bbc0245SSimon Glass * and global_data in SPL. Once U-Boot starts up and releocates it 284bbc0245SSimon Glass * is not needed. We could make this a CONFIG option or perhaps 294bbc0245SSimon Glass * place it immediately below CONFIG_SYS_TEXT_BASE. 304bbc0245SSimon Glass */ 314bbc0245SSimon Glass char *ptr = (char *)0x110000; 324bbc0245SSimon Glass int ret; 334bbc0245SSimon Glass 344bbc0245SSimon Glass debug("%s starting\n", __func__); 354bbc0245SSimon Glass ret = spl_init(); 364bbc0245SSimon Glass if (ret) { 374bbc0245SSimon Glass debug("%s: spl_init() failed\n", __func__); 384bbc0245SSimon Glass return ret; 394bbc0245SSimon Glass } 404bbc0245SSimon Glass preloader_console_init(); 414bbc0245SSimon Glass 424bbc0245SSimon Glass ret = arch_cpu_init(); 434bbc0245SSimon Glass if (ret) { 444bbc0245SSimon Glass debug("%s: arch_cpu_init() failed\n", __func__); 454bbc0245SSimon Glass return ret; 464bbc0245SSimon Glass } 474bbc0245SSimon Glass ret = arch_cpu_init_dm(); 484bbc0245SSimon Glass if (ret) { 494bbc0245SSimon Glass debug("%s: arch_cpu_init_dm() failed\n", __func__); 504bbc0245SSimon Glass return ret; 514bbc0245SSimon Glass } 524bbc0245SSimon Glass ret = print_cpuinfo(); 534bbc0245SSimon Glass if (ret) { 544bbc0245SSimon Glass debug("%s: print_cpuinfo() failed\n", __func__); 554bbc0245SSimon Glass return ret; 564bbc0245SSimon Glass } 574bbc0245SSimon Glass ret = dram_init(); 584bbc0245SSimon Glass if (ret) { 594bbc0245SSimon Glass debug("%s: dram_init() failed\n", __func__); 604bbc0245SSimon Glass return ret; 614bbc0245SSimon Glass } 624bbc0245SSimon Glass memset(&__bss_start, 0, (ulong)&__bss_end - (ulong)&__bss_start); 634bbc0245SSimon Glass 644bbc0245SSimon Glass /* TODO(sjg@chromium.org): Consider calling cpu_init_r() here */ 654bbc0245SSimon Glass ret = interrupt_init(); 664bbc0245SSimon Glass if (ret) { 674bbc0245SSimon Glass debug("%s: interrupt_init() failed\n", __func__); 684bbc0245SSimon Glass return ret; 694bbc0245SSimon Glass } 704bbc0245SSimon Glass 714bbc0245SSimon Glass /* 724bbc0245SSimon Glass * The stack grows down from ptr. Put the global data at ptr. This 734bbc0245SSimon Glass * will only be used for SPL. Once SPL loads U-Boot proper it will 744bbc0245SSimon Glass * set up its own stack. 754bbc0245SSimon Glass */ 764bbc0245SSimon Glass gd->new_gd = (struct global_data *)ptr; 774bbc0245SSimon Glass memcpy(gd->new_gd, gd, sizeof(*gd)); 784bbc0245SSimon Glass arch_setup_gd(gd->new_gd); 794bbc0245SSimon Glass gd->start_addr_sp = (ulong)ptr; 804bbc0245SSimon Glass 814bbc0245SSimon Glass /* Cache the SPI flash. Otherwise copying the code to RAM takes ages */ 824bbc0245SSimon Glass ret = mtrr_add_request(MTRR_TYPE_WRBACK, 834bbc0245SSimon Glass (1ULL << 32) - CONFIG_XIP_ROM_SIZE, 844bbc0245SSimon Glass CONFIG_XIP_ROM_SIZE); 854bbc0245SSimon Glass if (ret) { 864bbc0245SSimon Glass debug("%s: SPI cache setup failed\n", __func__); 874bbc0245SSimon Glass return ret; 884bbc0245SSimon Glass } 894bbc0245SSimon Glass 904bbc0245SSimon Glass return 0; 914bbc0245SSimon Glass } 924bbc0245SSimon Glass 934bbc0245SSimon Glass void board_init_f(ulong flags) 944bbc0245SSimon Glass { 954bbc0245SSimon Glass int ret; 964bbc0245SSimon Glass 974bbc0245SSimon Glass ret = x86_spl_init(); 984bbc0245SSimon Glass if (ret) { 994bbc0245SSimon Glass debug("Error %d\n", ret); 1004bbc0245SSimon Glass hang(); 1014bbc0245SSimon Glass } 1024bbc0245SSimon Glass 1034bbc0245SSimon Glass /* Uninit CAR and jump to board_init_f_r() */ 1044bbc0245SSimon Glass board_init_f_r_trampoline(gd->start_addr_sp); 1054bbc0245SSimon Glass } 1064bbc0245SSimon Glass 1074bbc0245SSimon Glass void board_init_f_r(void) 1084bbc0245SSimon Glass { 1094bbc0245SSimon Glass init_cache_f_r(); 1104bbc0245SSimon Glass gd->flags &= ~GD_FLG_SERIAL_READY; 1114bbc0245SSimon Glass debug("cache status %d\n", dcache_status()); 1124bbc0245SSimon Glass board_init_r(gd, 0); 1134bbc0245SSimon Glass } 1144bbc0245SSimon Glass 1154bbc0245SSimon Glass u32 spl_boot_device(void) 1164bbc0245SSimon Glass { 1174bbc0245SSimon Glass return BOOT_DEVICE_BOARD; 1184bbc0245SSimon Glass } 1194bbc0245SSimon Glass 1204bbc0245SSimon Glass int spl_start_uboot(void) 1214bbc0245SSimon Glass { 1224bbc0245SSimon Glass return 0; 1234bbc0245SSimon Glass } 1244bbc0245SSimon Glass 1254bbc0245SSimon Glass void spl_board_announce_boot_device(void) 1264bbc0245SSimon Glass { 1274bbc0245SSimon Glass printf("SPI flash"); 1284bbc0245SSimon Glass } 1294bbc0245SSimon Glass 1304bbc0245SSimon Glass static int spl_board_load_image(struct spl_image_info *spl_image, 1314bbc0245SSimon Glass struct spl_boot_device *bootdev) 1324bbc0245SSimon Glass { 1334bbc0245SSimon Glass spl_image->size = CONFIG_SYS_MONITOR_LEN; 1344bbc0245SSimon Glass spl_image->entry_point = CONFIG_SYS_TEXT_BASE; 1354bbc0245SSimon Glass spl_image->load_addr = CONFIG_SYS_TEXT_BASE; 1364bbc0245SSimon Glass spl_image->os = IH_OS_U_BOOT; 1374bbc0245SSimon Glass spl_image->name = "U-Boot"; 1384bbc0245SSimon Glass 1394bbc0245SSimon Glass debug("Loading to %lx\n", spl_image->load_addr); 1404bbc0245SSimon Glass 1414bbc0245SSimon Glass return 0; 1424bbc0245SSimon Glass } 1434bbc0245SSimon Glass SPL_LOAD_IMAGE_METHOD("SPI", 0, BOOT_DEVICE_BOARD, spl_board_load_image); 1444bbc0245SSimon Glass 1454bbc0245SSimon Glass int spl_spi_load_image(void) 1464bbc0245SSimon Glass { 1474bbc0245SSimon Glass return -EPERM; 1484bbc0245SSimon Glass } 1494bbc0245SSimon Glass 1504bbc0245SSimon Glass void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image) 1514bbc0245SSimon Glass { 1524bbc0245SSimon Glass int ret; 1534bbc0245SSimon Glass 1544bbc0245SSimon Glass printf("Jumping to 64-bit U-Boot: Note many features are missing\n"); 1554bbc0245SSimon Glass ret = cpu_jump_to_64bit_uboot(spl_image->entry_point); 1564bbc0245SSimon Glass debug("ret=%d\n", ret); 1574bbc0245SSimon Glass while (1) 1584bbc0245SSimon Glass ; 1594bbc0245SSimon Glass } 160