1 /* 2 * Copyright (C) 2014 Gateworks Corporation 3 * Copyright (C) 2011-2012 Freescale Semiconductor, Inc. 4 * 5 * Author: Tim Harvey <tharvey@gateworks.com> 6 * 7 * SPDX-License-Identifier: GPL-2.0+ 8 */ 9 10 #include <common.h> 11 #include <asm/io.h> 12 #include <asm/arch/imx-regs.h> 13 #include <asm/arch/sys_proto.h> 14 #include <asm/spl.h> 15 #include <spl.h> 16 #include <asm/mach-imx/hab.h> 17 18 DECLARE_GLOBAL_DATA_PTR; 19 20 #if defined(CONFIG_MX6) 21 /* determine boot device from SRC_SBMR1 (BOOT_CFG[4:1]) or SRC_GPR9 register */ 22 u32 spl_boot_device(void) 23 { 24 unsigned int bmode = readl(&src_base->sbmr2); 25 u32 reg = imx6_src_get_boot_mode(); 26 27 /* 28 * Check for BMODE if serial downloader is enabled 29 * BOOT_MODE - see IMX6DQRM Table 8-1 30 */ 31 if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */ 32 return BOOT_DEVICE_BOARD; 33 34 /* BOOT_CFG1[7:4] - see IMX6DQRM Table 8-8 */ 35 switch ((reg & IMX6_BMODE_MASK) >> IMX6_BMODE_SHIFT) { 36 /* EIM: See 8.5.1, Table 8-9 */ 37 case IMX6_BMODE_EMI: 38 /* BOOT_CFG1[3]: NOR/OneNAND Selection */ 39 switch ((reg & IMX6_BMODE_EMI_MASK) >> IMX6_BMODE_EMI_SHIFT) { 40 case IMX6_BMODE_ONENAND: 41 return BOOT_DEVICE_ONENAND; 42 case IMX6_BMODE_NOR: 43 return BOOT_DEVICE_NOR; 44 break; 45 } 46 /* Reserved: Used to force Serial Downloader */ 47 case IMX6_BMODE_RESERVED: 48 return BOOT_DEVICE_BOARD; 49 /* SATA: See 8.5.4, Table 8-20 */ 50 #if !defined(CONFIG_MX6UL) && !defined(CONFIG_MX6ULL) 51 case IMX6_BMODE_SATA: 52 return BOOT_DEVICE_SATA; 53 #endif 54 /* Serial ROM: See 8.5.5.1, Table 8-22 */ 55 case IMX6_BMODE_SERIAL_ROM: 56 /* BOOT_CFG4[2:0] */ 57 switch ((reg & IMX6_BMODE_SERIAL_ROM_MASK) >> 58 IMX6_BMODE_SERIAL_ROM_SHIFT) { 59 case IMX6_BMODE_ECSPI1: 60 case IMX6_BMODE_ECSPI2: 61 case IMX6_BMODE_ECSPI3: 62 case IMX6_BMODE_ECSPI4: 63 case IMX6_BMODE_ECSPI5: 64 return BOOT_DEVICE_SPI; 65 case IMX6_BMODE_I2C1: 66 case IMX6_BMODE_I2C2: 67 case IMX6_BMODE_I2C3: 68 return BOOT_DEVICE_I2C; 69 } 70 break; 71 /* SD/eSD: 8.5.3, Table 8-15 */ 72 case IMX6_BMODE_SD: 73 case IMX6_BMODE_ESD: 74 return BOOT_DEVICE_MMC1; 75 /* MMC/eMMC: 8.5.3 */ 76 case IMX6_BMODE_MMC: 77 case IMX6_BMODE_EMMC: 78 return BOOT_DEVICE_MMC1; 79 /* NAND Flash: 8.5.2, Table 8-10 */ 80 case IMX6_BMODE_NAND: 81 return BOOT_DEVICE_NAND; 82 } 83 return BOOT_DEVICE_NONE; 84 } 85 #endif 86 87 #if defined(CONFIG_SPL_MMC_SUPPORT) 88 /* called from spl_mmc to see type of boot mode for storage (RAW or FAT) */ 89 u32 spl_boot_mode(const u32 boot_device) 90 { 91 switch (spl_boot_device()) { 92 /* for MMC return either RAW or FAT mode */ 93 case BOOT_DEVICE_MMC1: 94 case BOOT_DEVICE_MMC2: 95 #if defined(CONFIG_SPL_FAT_SUPPORT) 96 return MMCSD_MODE_FS; 97 #elif defined(CONFIG_SUPPORT_EMMC_BOOT) 98 return MMCSD_MODE_EMMCBOOT; 99 #else 100 return MMCSD_MODE_RAW; 101 #endif 102 break; 103 default: 104 puts("spl: ERROR: unsupported device\n"); 105 hang(); 106 } 107 } 108 #endif 109 110 #if defined(CONFIG_SECURE_BOOT) 111 112 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image) 113 { 114 typedef void __noreturn (*image_entry_noargs_t)(void); 115 116 image_entry_noargs_t image_entry = 117 (image_entry_noargs_t)(unsigned long)spl_image->entry_point; 118 119 debug("image entry point: 0x%lX\n", spl_image->entry_point); 120 121 /* HAB looks for the CSF at the end of the authenticated data therefore, 122 * we need to subtract the size of the CSF from the actual filesize */ 123 if (authenticate_image(spl_image->load_addr, 124 spl_image->size - CONFIG_CSF_SIZE)) { 125 image_entry(); 126 } else { 127 puts("spl: ERROR: image authentication unsuccessful\n"); 128 hang(); 129 } 130 } 131 132 #endif 133 134 #if defined(CONFIG_MX6) && defined(CONFIG_SPL_OS_BOOT) 135 int dram_init_banksize(void) 136 { 137 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; 138 gd->bd->bi_dram[0].size = imx_ddr_size(); 139 140 return 0; 141 } 142 #endif 143