1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * SPL definitions for the i.MX7 SPL
5 * (C) Copyright 2017 CompuLab, Ltd. http://www.compulab.com
7 * Author: Uri Mashiach <uri.mashiach@compulab.co.il>
10 #ifndef __IMX7_SPL_CONFIG_H
11 #define __IMX7_SPL_CONFIG_H
15 * see figure 6-22 in i.MX 7Dual/Solo Reference manuals:
16 * - IMX7D/S OCRAM free area RAM (OCRAM) is from 0x00910000 to
18 * - Set the stack at the end of the free area section, at 0x00946BB8.
19 * - The BOOT ROM loads what they consider the firmware image
20 * which consists of a 4K header in front of us that contains the IVT, DCD
21 * and some padding. However, the manual also states that the ROM uses the
22 * OCRAM_EPCD and OCRAM_PXP areas for itself. While the SPL is free to use
23 * this range for stack and malloc, the SPL itself must fit below 0x920000,
24 * or the image will be truncated in at least some boot modes like USB SDP.
25 * Thus our max size is really 0x00920000 - 0x00912000. If necessary,
26 * CONFIG_SPL_TEXT_BASE could be moved to 0x00911000 to gain 4KB of space
27 * for the SPL, but 56KB should be more than enough for the SPL.
29 #define CONFIG_SPL_MAX_SIZE 0xE000
30 #define CONFIG_SPL_STACK 0x00946BB8
32 * Pad SPL to 68KB (4KB header + 56KB max size + 8KB extra padding)
33 * The extra padding could be removed, but this value was used historically
34 * based on an incorrect CONFIG_SPL_MAX_SIZE definition.
35 * This allows to write the SPL/U-Boot combination generated with
36 * u-boot-with-spl.imx directly to a boot media (given that boot media specific
37 * offset is configured properly).
39 #define CONFIG_SPL_PAD_TO 0x11000
42 #if defined(CONFIG_SPL_MMC)
43 #define CONFIG_SYS_MONITOR_LEN 409600 /* 400 KB */
46 /* Define the payload for FAT/EXT support */
47 #if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_FS_EXT4)
48 # ifdef CONFIG_OF_CONTROL
49 # define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot-dtb.img"
51 # define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
55 #define CONFIG_SPL_BSS_START_ADDR 0x88200000
56 #define CONFIG_SPL_BSS_MAX_SIZE 0x100000 /* 1 MB */
57 #define CONFIG_SYS_SPL_MALLOC_START 0x88300000
58 #define CONFIG_SYS_SPL_MALLOC_SIZE 0x100000 /* 1 MB */
60 #endif /* CONFIG_SPL */
62 #endif /* __IMX7_SPL_CONFIG_H */