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/* 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 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 */
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