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 #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 /* BOOT_CFG1[7:4] - see IMX6DQRM Table 8-8 */ 36 switch ((reg & IMX6_BMODE_MASK) >> IMX6_BMODE_SHIFT) { 37 /* EIM: See 8.5.1, Table 8-9 */ 38 case IMX6_BMODE_EMI: 39 /* BOOT_CFG1[3]: NOR/OneNAND Selection */ 40 switch ((reg & IMX6_BMODE_EMI_MASK) >> IMX6_BMODE_EMI_SHIFT) { 41 case IMX6_BMODE_ONENAND: 42 return BOOT_DEVICE_ONENAND; 43 case IMX6_BMODE_NOR: 44 return BOOT_DEVICE_NOR; 45 break; 46 } 47 /* Reserved: Used to force Serial Downloader */ 48 case IMX6_BMODE_RESERVED: 49 return BOOT_DEVICE_BOARD; 50 /* SATA: See 8.5.4, Table 8-20 */ 51 #if !defined(CONFIG_MX6UL) && !defined(CONFIG_MX6ULL) 52 case IMX6_BMODE_SATA: 53 return BOOT_DEVICE_SATA; 54 #endif 55 /* Serial ROM: See 8.5.5.1, Table 8-22 */ 56 case IMX6_BMODE_SERIAL_ROM: 57 /* BOOT_CFG4[2:0] */ 58 switch ((reg & IMX6_BMODE_SERIAL_ROM_MASK) >> 59 IMX6_BMODE_SERIAL_ROM_SHIFT) { 60 case IMX6_BMODE_ECSPI1: 61 case IMX6_BMODE_ECSPI2: 62 case IMX6_BMODE_ECSPI3: 63 case IMX6_BMODE_ECSPI4: 64 case IMX6_BMODE_ECSPI5: 65 return BOOT_DEVICE_SPI; 66 case IMX6_BMODE_I2C1: 67 case IMX6_BMODE_I2C2: 68 case IMX6_BMODE_I2C3: 69 return BOOT_DEVICE_I2C; 70 } 71 break; 72 /* SD/eSD: 8.5.3, Table 8-15 */ 73 case IMX6_BMODE_SD: 74 case IMX6_BMODE_ESD: 75 return BOOT_DEVICE_MMC1; 76 /* MMC/eMMC: 8.5.3 */ 77 case IMX6_BMODE_MMC: 78 case IMX6_BMODE_EMMC: 79 return BOOT_DEVICE_MMC1; 80 /* NAND Flash: 8.5.2, Table 8-10 */ 81 case IMX6_BMODE_NAND: 82 return BOOT_DEVICE_NAND; 83 } 84 return BOOT_DEVICE_NONE; 85 } 86 87 #ifdef CONFIG_SPL_USB_GADGET 88 int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name) 89 { 90 put_unaligned(CONFIG_USB_GADGET_PRODUCT_NUM + 0xfff, &dev->idProduct); 91 92 return 0; 93 } 94 #endif 95 #endif 96 97 #if defined(CONFIG_SPL_MMC_SUPPORT) 98 /* called from spl_mmc to see type of boot mode for storage (RAW or FAT) */ 99 u32 spl_boot_mode(const u32 boot_device) 100 { 101 switch (spl_boot_device()) { 102 /* for MMC return either RAW or FAT mode */ 103 case BOOT_DEVICE_MMC1: 104 case BOOT_DEVICE_MMC2: 105 #if defined(CONFIG_SPL_FAT_SUPPORT) 106 return MMCSD_MODE_FS; 107 #elif defined(CONFIG_SUPPORT_EMMC_BOOT) 108 return MMCSD_MODE_EMMCBOOT; 109 #else 110 return MMCSD_MODE_RAW; 111 #endif 112 break; 113 default: 114 puts("spl: ERROR: unsupported device\n"); 115 hang(); 116 } 117 } 118 #endif 119 120 #if defined(CONFIG_SECURE_BOOT) 121 122 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image) 123 { 124 typedef void __noreturn (*image_entry_noargs_t)(void); 125 126 image_entry_noargs_t image_entry = 127 (image_entry_noargs_t)(unsigned long)spl_image->entry_point; 128 129 debug("image entry point: 0x%lX\n", spl_image->entry_point); 130 131 /* HAB looks for the CSF at the end of the authenticated data therefore, 132 * we need to subtract the size of the CSF from the actual filesize */ 133 if (authenticate_image(spl_image->load_addr, 134 spl_image->size - CONFIG_CSF_SIZE)) { 135 image_entry(); 136 } else { 137 puts("spl: ERROR: image authentication unsuccessful\n"); 138 hang(); 139 } 140 } 141 142 #endif 143 144 #if defined(CONFIG_MX6) && defined(CONFIG_SPL_OS_BOOT) 145 int dram_init_banksize(void) 146 { 147 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; 148 gd->bd->bi_dram[0].size = imx_ddr_size(); 149 150 return 0; 151 } 152 #endif 153