2 * Copyright (C) 2014 Gateworks Corporation
3 * Copyright (C) 2011-2012 Freescale Semiconductor, Inc.
5 * Author: Tim Harvey <tharvey@gateworks.com>
7 * SPDX-License-Identifier: GPL-2.0+
12 #include <asm/arch/imx-regs.h>
13 #include <asm/arch/sys_proto.h>
16 #include <asm/mach-imx/hab.h>
18 DECLARE_GLOBAL_DATA_PTR;
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)
24 unsigned int bmode = readl(&src_base->sbmr2);
25 u32 reg = imx6_src_get_boot_mode();
28 * Check for BMODE if serial downloader is enabled
29 * BOOT_MODE - see IMX6DQRM Table 8-1
31 if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */
32 return BOOT_DEVICE_BOARD;
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).
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...
43 if (is_usbotg_phy_active())
44 return BOOT_DEVICE_BOARD;
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 */
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;
55 return BOOT_DEVICE_NOR;
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)
64 return BOOT_DEVICE_SATA;
66 /* Serial ROM: See 8.5.5.1, Table 8-22 */
67 case IMX6_BMODE_SERIAL_ROM:
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;
80 return BOOT_DEVICE_I2C;
83 /* SD/eSD: 8.5.3, Table 8-15 */
86 return BOOT_DEVICE_MMC1;
90 return BOOT_DEVICE_MMC1;
91 /* NAND Flash: 8.5.2, Table 8-10 */
93 return BOOT_DEVICE_NAND;
95 return BOOT_DEVICE_NONE;
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)
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;
112 return MMCSD_MODE_RAW;
116 puts("spl: ERROR: unsupported device\n");
122 #if defined(CONFIG_SECURE_BOOT)
124 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
126 typedef void __noreturn (*image_entry_noargs_t)(void);
128 image_entry_noargs_t image_entry =
129 (image_entry_noargs_t)(unsigned long)spl_image->entry_point;
131 debug("image entry point: 0x%lX\n", spl_image->entry_point);
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)) {
139 puts("spl: ERROR: image authentication unsuccessful\n");
146 #if defined(CONFIG_MX6) && defined(CONFIG_SPL_OS_BOOT)
147 int dram_init_banksize(void)
149 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
150 gd->bd->bi_dram[0].size = imx_ddr_size();