| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * SPL definitions for the i.MX7 SPL |
| * |
| * (C) Copyright 2017 CompuLab, Ltd. http://www.compulab.com |
| * |
| * Author: Uri Mashiach <uri.mashiach@compulab.co.il> |
| */ |
| |
| #ifndef __IMX7_SPL_CONFIG_H |
| #define __IMX7_SPL_CONFIG_H |
| |
| #ifdef CONFIG_SPL |
| /* |
| * see figure 6-22 in i.MX 7Dual/Solo Reference manuals: |
| * - IMX7D/S OCRAM free area RAM (OCRAM) is from 0x00910000 to |
| * 0x00946C00. |
| * - Set the stack at the end of the free area section, at 0x00946BB8. |
| * - The BOOT ROM loads what they consider the firmware image |
| * which consists of a 4K header in front of us that contains the IVT, DCD |
| * and some padding. However, the manual also states that the ROM uses the |
| * OCRAM_EPCD and OCRAM_PXP areas for itself. While the SPL is free to use |
| * this range for stack and malloc, the SPL itself must fit below 0x920000, |
| * or the image will be truncated in at least some boot modes like USB SDP. |
| * Thus our max size is really 0x00920000 - 0x00912000. If necessary, |
| * CONFIG_SPL_TEXT_BASE could be moved to 0x00911000 to gain 4KB of space |
| * for the SPL, but 56KB should be more than enough for the SPL. |
| */ |
| #define CONFIG_SPL_MAX_SIZE 0xE000 |
| #define CONFIG_SPL_STACK 0x00946BB8 |
| /* |
| * Pad SPL to 68KB (4KB header + 56KB max size + 8KB extra padding) |
| * The extra padding could be removed, but this value was used historically |
| * based on an incorrect CONFIG_SPL_MAX_SIZE definition. |
| * This allows to write the SPL/U-Boot combination generated with |
| * u-boot-with-spl.imx directly to a boot media (given that boot media specific |
| * offset is configured properly). |
| */ |
| #define CONFIG_SPL_PAD_TO 0x11000 |
| |
| /* MMC support */ |
| #if defined(CONFIG_SPL_MMC) |
| #define CONFIG_SYS_MONITOR_LEN 409600 /* 400 KB */ |
| #endif |
| |
| /* Define the payload for FAT/EXT support */ |
| #if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_FS_EXT4) |
| # ifdef CONFIG_OF_CONTROL |
| # define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot-dtb.img" |
| # else |
| # define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img" |
| # endif |
| #endif |
| |
| #define CONFIG_SPL_BSS_START_ADDR 0x88200000 |
| #define CONFIG_SPL_BSS_MAX_SIZE 0x100000 /* 1 MB */ |
| #define CONFIG_SYS_SPL_MALLOC_START 0x88300000 |
| #define CONFIG_SYS_SPL_MALLOC_SIZE 0x100000 /* 1 MB */ |
| |
| #endif /* CONFIG_SPL */ |
| |
| #endif /* __IMX7_SPL_CONFIG_H */ |