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 /* 35 * The above method does not detect that the boot ROM used 36 * serial downloader in case the boot ROM decided to use the 37 * serial downloader as a fall back (primary boot source failed). 38 * 39 * Infer that the boot ROM used the USB serial downloader by 40 * checking whether the USB PHY is currently active... This 41 * assumes that SPL did not (yet) initialize the USB PHY... 42 */ 43 if (is_usbotg_phy_active()) 44 return BOOT_DEVICE_BOARD; 45 46 /* BOOT_CFG1[7:4] - see IMX6DQRM Table 8-8 */ 47 switch ((reg & IMX6_BMODE_MASK) >> IMX6_BMODE_SHIFT) { 48 /* EIM: See 8.5.1, Table 8-9 */ 49 case IMX6_BMODE_EMI: 50 /* BOOT_CFG1[3]: NOR/OneNAND Selection */ 51 switch ((reg & IMX6_BMODE_EMI_MASK) >> IMX6_BMODE_EMI_SHIFT) { 52 case IMX6_BMODE_ONENAND: 53 return BOOT_DEVICE_ONENAND; 54 case IMX6_BMODE_NOR: 55 return BOOT_DEVICE_NOR; 56 break; 57 } 58 /* Reserved: Used to force Serial Downloader */ 59 case IMX6_BMODE_RESERVED: 60 return BOOT_DEVICE_BOARD; 61 /* SATA: See 8.5.4, Table 8-20 */ 62 #if !defined(CONFIG_MX6UL) && !defined(CONFIG_MX6ULL) 63 case IMX6_BMODE_SATA: 64 return BOOT_DEVICE_SATA; 65 #endif 66 /* Serial ROM: See 8.5.5.1, Table 8-22 */ 67 case IMX6_BMODE_SERIAL_ROM: 68 /* BOOT_CFG4[2:0] */ 69 switch ((reg & IMX6_BMODE_SERIAL_ROM_MASK) >> 70 IMX6_BMODE_SERIAL_ROM_SHIFT) { 71 case IMX6_BMODE_ECSPI1: 72 case IMX6_BMODE_ECSPI2: 73 case IMX6_BMODE_ECSPI3: 74 case IMX6_BMODE_ECSPI4: 75 case IMX6_BMODE_ECSPI5: 76 return BOOT_DEVICE_SPI; 77 case IMX6_BMODE_I2C1: 78 case IMX6_BMODE_I2C2: 79 case IMX6_BMODE_I2C3: 80 return BOOT_DEVICE_I2C; 81 } 82 break; 83 /* SD/eSD: 8.5.3, Table 8-15 */ 84 case IMX6_BMODE_SD: 85 case IMX6_BMODE_ESD: 86 return BOOT_DEVICE_MMC1; 87 /* MMC/eMMC: 8.5.3 */ 88 case IMX6_BMODE_MMC: 89 case IMX6_BMODE_EMMC: 90 return BOOT_DEVICE_MMC1; 91 /* NAND Flash: 8.5.2, Table 8-10 */ 92 case IMX6_BMODE_NAND: 93 return BOOT_DEVICE_NAND; 94 } 95 return BOOT_DEVICE_NONE; 96 } 97 #endif 98 99 #if defined(CONFIG_SPL_MMC_SUPPORT) 100 /* called from spl_mmc to see type of boot mode for storage (RAW or FAT) */ 101 u32 spl_boot_mode(const u32 boot_device) 102 { 103 switch (spl_boot_device()) { 104 /* for MMC return either RAW or FAT mode */ 105 case BOOT_DEVICE_MMC1: 106 case BOOT_DEVICE_MMC2: 107 #if defined(CONFIG_SPL_FAT_SUPPORT) 108 return MMCSD_MODE_FS; 109 #elif defined(CONFIG_SUPPORT_EMMC_BOOT) 110 return MMCSD_MODE_EMMCBOOT; 111 #else 112 return MMCSD_MODE_RAW; 113 #endif 114 break; 115 default: 116 puts("spl: ERROR: unsupported device\n"); 117 hang(); 118 } 119 } 120 #endif 121 122 #if defined(CONFIG_SECURE_BOOT) 123 124 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image) 125 { 126 typedef void __noreturn (*image_entry_noargs_t)(void); 127 128 image_entry_noargs_t image_entry = 129 (image_entry_noargs_t)(unsigned long)spl_image->entry_point; 130 131 debug("image entry point: 0x%lX\n", spl_image->entry_point); 132 133 /* HAB looks for the CSF at the end of the authenticated data therefore, 134 * we need to subtract the size of the CSF from the actual filesize */ 135 if (authenticate_image(spl_image->load_addr, 136 spl_image->size - CONFIG_CSF_SIZE)) { 137 image_entry(); 138 } else { 139 puts("spl: ERROR: image authentication unsuccessful\n"); 140 hang(); 141 } 142 } 143 144 #endif 145 146 #if defined(CONFIG_MX6) && defined(CONFIG_SPL_OS_BOOT) 147 int dram_init_banksize(void) 148 { 149 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; 150 gd->bd->bi_dram[0].size = imx_ddr_size(); 151 152 return 0; 153 } 154 #endif 155