1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (C) 2014 Gateworks Corporation 4 * Copyright (C) 2011-2012 Freescale Semiconductor, Inc. 5 * 6 * Author: Tim Harvey <tharvey@gateworks.com> 7 */ 8 9 #include <common.h> 10 #include <asm/io.h> 11 #include <asm/arch/imx-regs.h> 12 #include <asm/arch/sys_proto.h> 13 #include <asm/spl.h> 14 #include <spl.h> 15 #include <asm/mach-imx/hab.h> 16 #include <asm/mach-imx/boot_mode.h> 17 #include <g_dnl.h> 18 19 DECLARE_GLOBAL_DATA_PTR; 20 21 #if defined(CONFIG_MX6) 22 /* determine boot device from SRC_SBMR1 (BOOT_CFG[4:1]) or SRC_GPR9 register */ 23 u32 spl_boot_device(void) 24 { 25 unsigned int bmode = readl(&src_base->sbmr2); 26 u32 reg = imx6_src_get_boot_mode(); 27 28 /* 29 * Check for BMODE if serial downloader is enabled 30 * BOOT_MODE - see IMX6DQRM Table 8-1 31 */ 32 if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */ 33 return BOOT_DEVICE_BOARD; 34 35 /* 36 * The above method does not detect that the boot ROM used 37 * serial downloader in case the boot ROM decided to use the 38 * serial downloader as a fall back (primary boot source failed). 39 * 40 * Infer that the boot ROM used the USB serial downloader by 41 * checking whether the USB PHY is currently active... This 42 * assumes that SPL did not (yet) initialize the USB PHY... 43 */ 44 if (is_usbotg_phy_active()) 45 return BOOT_DEVICE_BOARD; 46 47 /* BOOT_CFG1[7:4] - see IMX6DQRM Table 8-8 */ 48 switch ((reg & IMX6_BMODE_MASK) >> IMX6_BMODE_SHIFT) { 49 /* EIM: See 8.5.1, Table 8-9 */ 50 case IMX6_BMODE_EMI: 51 /* BOOT_CFG1[3]: NOR/OneNAND Selection */ 52 switch ((reg & IMX6_BMODE_EMI_MASK) >> IMX6_BMODE_EMI_SHIFT) { 53 case IMX6_BMODE_ONENAND: 54 return BOOT_DEVICE_ONENAND; 55 case IMX6_BMODE_NOR: 56 return BOOT_DEVICE_NOR; 57 break; 58 } 59 /* Reserved: Used to force Serial Downloader */ 60 case IMX6_BMODE_RESERVED: 61 return BOOT_DEVICE_BOARD; 62 /* SATA: See 8.5.4, Table 8-20 */ 63 #if !defined(CONFIG_MX6UL) && !defined(CONFIG_MX6ULL) 64 case IMX6_BMODE_SATA: 65 return BOOT_DEVICE_SATA; 66 #endif 67 /* Serial ROM: See 8.5.5.1, Table 8-22 */ 68 case IMX6_BMODE_SERIAL_ROM: 69 /* BOOT_CFG4[2:0] */ 70 switch ((reg & IMX6_BMODE_SERIAL_ROM_MASK) >> 71 IMX6_BMODE_SERIAL_ROM_SHIFT) { 72 case IMX6_BMODE_ECSPI1: 73 case IMX6_BMODE_ECSPI2: 74 case IMX6_BMODE_ECSPI3: 75 case IMX6_BMODE_ECSPI4: 76 case IMX6_BMODE_ECSPI5: 77 return BOOT_DEVICE_SPI; 78 case IMX6_BMODE_I2C1: 79 case IMX6_BMODE_I2C2: 80 case IMX6_BMODE_I2C3: 81 return BOOT_DEVICE_I2C; 82 } 83 break; 84 /* SD/eSD: 8.5.3, Table 8-15 */ 85 case IMX6_BMODE_SD: 86 case IMX6_BMODE_ESD: 87 return BOOT_DEVICE_MMC1; 88 /* MMC/eMMC: 8.5.3 */ 89 case IMX6_BMODE_MMC: 90 case IMX6_BMODE_EMMC: 91 return BOOT_DEVICE_MMC1; 92 /* NAND Flash: 8.5.2, Table 8-10 */ 93 case IMX6_BMODE_NAND_MIN ... IMX6_BMODE_NAND_MAX: 94 return BOOT_DEVICE_NAND; 95 } 96 return BOOT_DEVICE_NONE; 97 } 98 99 #elif defined(CONFIG_MX7) || defined(CONFIG_IMX8M) 100 /* Translate iMX7/i.MX8M boot device to the SPL boot device enumeration */ 101 u32 spl_boot_device(void) 102 { 103 #if defined(CONFIG_MX7) 104 unsigned int bmode = readl(&src_base->sbmr2); 105 106 /* 107 * Check for BMODE if serial downloader is enabled 108 * BOOT_MODE - see IMX7DRM Table 6-24 109 */ 110 if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */ 111 return BOOT_DEVICE_BOARD; 112 113 /* 114 * The above method does not detect that the boot ROM used 115 * serial downloader in case the boot ROM decided to use the 116 * serial downloader as a fall back (primary boot source failed). 117 * 118 * Infer that the boot ROM used the USB serial downloader by 119 * checking whether the USB PHY is currently active... This 120 * assumes that SPL did not (yet) initialize the USB PHY... 121 */ 122 if (is_boot_from_usb()) 123 return BOOT_DEVICE_BOARD; 124 #endif 125 126 enum boot_device boot_device_spl = get_boot_device(); 127 128 switch (boot_device_spl) { 129 #if defined(CONFIG_MX7) 130 case SD1_BOOT: 131 case MMC1_BOOT: 132 case SD2_BOOT: 133 case MMC2_BOOT: 134 case SD3_BOOT: 135 case MMC3_BOOT: 136 return BOOT_DEVICE_MMC1; 137 #elif defined(CONFIG_IMX8M) 138 case SD1_BOOT: 139 case MMC1_BOOT: 140 return BOOT_DEVICE_MMC1; 141 case SD2_BOOT: 142 case MMC2_BOOT: 143 return BOOT_DEVICE_MMC2; 144 #endif 145 case NAND_BOOT: 146 return BOOT_DEVICE_NAND; 147 case SPI_NOR_BOOT: 148 return BOOT_DEVICE_SPI; 149 case USB_BOOT: 150 return BOOT_DEVICE_USB; 151 default: 152 return BOOT_DEVICE_NONE; 153 } 154 } 155 #endif /* CONFIG_MX7 || CONFIG_IMX8M */ 156 157 #ifdef CONFIG_SPL_USB_GADGET_SUPPORT 158 int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name) 159 { 160 put_unaligned(CONFIG_USB_GADGET_PRODUCT_NUM + 0xfff, &dev->idProduct); 161 162 return 0; 163 } 164 #endif 165 166 #if defined(CONFIG_SPL_MMC_SUPPORT) 167 /* called from spl_mmc to see type of boot mode for storage (RAW or FAT) */ 168 u32 spl_boot_mode(const u32 boot_device) 169 { 170 switch (spl_boot_device()) { 171 /* for MMC return either RAW or FAT mode */ 172 case BOOT_DEVICE_MMC1: 173 case BOOT_DEVICE_MMC2: 174 #if defined(CONFIG_SPL_FAT_SUPPORT) 175 return MMCSD_MODE_FS; 176 #elif defined(CONFIG_SUPPORT_EMMC_BOOT) 177 return MMCSD_MODE_EMMCBOOT; 178 #else 179 return MMCSD_MODE_RAW; 180 #endif 181 break; 182 default: 183 puts("spl: ERROR: unsupported device\n"); 184 hang(); 185 } 186 } 187 #endif 188 189 #if defined(CONFIG_SECURE_BOOT) 190 191 /* 192 * +------------+ 0x0 (DDR_UIMAGE_START) - 193 * | Header | | 194 * +------------+ 0x40 | 195 * | | | 196 * | | | 197 * | | | 198 * | | | 199 * | Image Data | | 200 * . | | 201 * . | > Stuff to be authenticated ----+ 202 * . | | | 203 * | | | | 204 * | | | | 205 * +------------+ | | 206 * | | | | 207 * | Fill Data | | | 208 * | | | | 209 * +------------+ Align to ALIGN_SIZE | | 210 * | IVT | | | 211 * +------------+ + IVT_SIZE - | 212 * | | | 213 * | CSF DATA | <---------------------------------------------------------+ 214 * | | 215 * +------------+ 216 * | | 217 * | Fill Data | 218 * | | 219 * +------------+ + CSF_PAD_SIZE 220 */ 221 222 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image) 223 { 224 typedef void __noreturn (*image_entry_noargs_t)(void); 225 uint32_t offset; 226 227 image_entry_noargs_t image_entry = 228 (image_entry_noargs_t)(unsigned long)spl_image->entry_point; 229 230 debug("image entry point: 0x%lX\n", spl_image->entry_point); 231 232 if (spl_image->flags & SPL_FIT_FOUND) { 233 image_entry(); 234 } else { 235 /* 236 * HAB looks for the CSF at the end of the authenticated 237 * data therefore, we need to subtract the size of the 238 * CSF from the actual filesize 239 */ 240 offset = spl_image->size - CONFIG_CSF_SIZE; 241 if (!imx_hab_authenticate_image(spl_image->load_addr, 242 offset + IVT_SIZE + 243 CSF_PAD_SIZE, offset)) { 244 image_entry(); 245 } else { 246 puts("spl: ERROR: image authentication fail\n"); 247 hang(); 248 } 249 } 250 } 251 252 ulong board_spl_fit_size_align(ulong size) 253 { 254 /* 255 * HAB authenticate_image requests the IVT offset is 256 * aligned to 0x1000 257 */ 258 259 size = ALIGN(size, 0x1000); 260 size += CONFIG_CSF_SIZE; 261 262 return size; 263 } 264 265 void board_spl_fit_post_load(ulong load_addr, size_t length) 266 { 267 u32 offset = length - CONFIG_CSF_SIZE; 268 269 if (imx_hab_authenticate_image(load_addr, 270 offset + IVT_SIZE + CSF_PAD_SIZE, 271 offset)) { 272 puts("spl: ERROR: image authentication unsuccessful\n"); 273 hang(); 274 } 275 } 276 277 #endif 278 279 #if defined(CONFIG_MX6) && defined(CONFIG_SPL_OS_BOOT) 280 int dram_init_banksize(void) 281 { 282 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; 283 gd->bd->bi_dram[0].size = imx_ddr_size(); 284 285 return 0; 286 } 287 #endif 288