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 /* 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: 94 return BOOT_DEVICE_NAND; 95 } 96 return BOOT_DEVICE_NONE; 97 } 98 99 #ifdef CONFIG_SPL_USB_GADGET_SUPPORT 100 int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name) 101 { 102 put_unaligned(CONFIG_G_DNL_PRODUCT_NUM + 0xfff, &dev->idProduct); 103 104 return 0; 105 } 106 #endif 107 #endif 108 109 #if defined(CONFIG_SPL_MMC_SUPPORT) 110 /* called from spl_mmc to see type of boot mode for storage (RAW or FAT) */ 111 u32 spl_boot_mode(const u32 boot_device) 112 { 113 switch (spl_boot_device()) { 114 /* for MMC return either RAW or FAT mode */ 115 case BOOT_DEVICE_MMC1: 116 case BOOT_DEVICE_MMC2: 117 #if defined(CONFIG_SPL_FAT_SUPPORT) 118 return MMCSD_MODE_FS; 119 #elif defined(CONFIG_SUPPORT_EMMC_BOOT) 120 return MMCSD_MODE_EMMCBOOT; 121 #else 122 return MMCSD_MODE_RAW; 123 #endif 124 break; 125 default: 126 puts("spl: ERROR: unsupported device\n"); 127 hang(); 128 } 129 } 130 #endif 131 132 #if defined(CONFIG_SECURE_BOOT) 133 134 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image) 135 { 136 typedef void __noreturn (*image_entry_noargs_t)(void); 137 138 image_entry_noargs_t image_entry = 139 (image_entry_noargs_t)(unsigned long)spl_image->entry_point; 140 141 debug("image entry point: 0x%lX\n", spl_image->entry_point); 142 143 /* HAB looks for the CSF at the end of the authenticated data therefore, 144 * we need to subtract the size of the CSF from the actual filesize */ 145 if (authenticate_image(spl_image->load_addr, 146 spl_image->size - CONFIG_CSF_SIZE)) { 147 image_entry(); 148 } else { 149 puts("spl: ERROR: image authentication unsuccessful\n"); 150 hang(); 151 } 152 } 153 154 #endif 155 156 #if defined(CONFIG_MX6) && defined(CONFIG_SPL_OS_BOOT) 157 int dram_init_banksize(void) 158 { 159 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; 160 gd->bd->bi_dram[0].size = imx_ddr_size(); 161 162 return 0; 163 } 164 #endif 165