mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-31 14:28:52 +09:00
60c7c30aa0
This introduces OMAP3 support for the common omap boot code, as well as a major cleanup of the common omap boot code. First, the omap_boot_parameters structure becomes platform-specific, since its definition differs a bit across omap platforms. The offsets are removed as well since it is U-Boot's coding style to use structures for mapping such kind of data (in the sense that it is similar to registers). It is correct to assume that romcode structure encoding is the same as U-Boot, given the description of these structures in the TRMs. The original address provided by the bootrom is passed to the U-Boot binary instead of a duplicate of the structure stored in global data. This allows to have only the relevant (boot device and mode) information stored in global data. It is also expected that the address where the bootrom stores that information is not overridden by the U-Boot SPL or U-Boot. The save_omap_boot_params is expected to handle all special cases where the data provided by the bootrom cannot be used as-is, so that spl_boot_device and spl_boot_mode only return the data from global data. All of this is only relevant when the U-Boot SPL is used. In cases it is not, save_boot_params should fallback to its weak (or board-specific) definition. save_omap_boot_params should not be called in that context either. Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
/*
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* omap.h
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*
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* Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
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*
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* Author:
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* Chandan Nath <chandan.nath@ti.com>
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*
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* Derived from OMAP4 work by
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* Aneesh V <aneesh@ti.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _OMAP_H_
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#define _OMAP_H_
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#ifdef CONFIG_AM33XX
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#define NON_SECURE_SRAM_START 0x402F0400
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#define NON_SECURE_SRAM_END 0x40310000
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#define SRAM_SCRATCH_SPACE_ADDR 0x4030B800
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#elif defined(CONFIG_TI81XX)
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#define NON_SECURE_SRAM_START 0x40300000
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#define NON_SECURE_SRAM_END 0x40320000
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#define SRAM_SCRATCH_SPACE_ADDR 0x4031B800
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#elif defined(CONFIG_AM43XX)
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#define NON_SECURE_SRAM_START 0x402F0400
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#define NON_SECURE_SRAM_END 0x40340000
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#define SRAM_SCRATCH_SPACE_ADDR 0x40337C00
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#define AM4372_BOARD_NAME_START SRAM_SCRATCH_SPACE_ADDR
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#define AM4372_BOARD_NAME_END SRAM_SCRATCH_SPACE_ADDR + 0xC
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#define AM4372_BOARD_VERSION_START SRAM_SCRATCH_SPACE_ADDR + 0xD
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#define AM4372_BOARD_VERSION_END SRAM_SCRATCH_SPACE_ADDR + 0x14
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#define QSPI_BASE 0x47900000
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#endif
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/* Boot parameters */
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#ifndef __ASSEMBLY__
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struct omap_boot_parameters {
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unsigned int reserved;
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unsigned int boot_device_descriptor;
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unsigned char boot_device;
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unsigned char reset_reason;
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};
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#endif
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#endif
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