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https://github.com/AsahiLinux/u-boot
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f1df936445
This patch adds the DDR3 setup and training code taken from the Marvell U-Boot repository. This code used to be included as a binary (bin_hdr) into the Armada A38x boot image. Not linked with the main U-Boot. With this code addition and the serdes/PHY setup code, the Armada A38x support in mainline U-Boot is finally self-contained. So the complete image for booting can be built from mainline U-Boot. Without any additional external inclusion. Note: This code has undergone many hours (days!) of coding-style cleanup and refactoring. It still is not checkpatch clean though, I'm afraid. As the factoring of the code has so many levels of indentation that many lines are longer than 80 chars. Signed-off-by: Stefan Roese <sr@denx.de>
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/*
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* Copyright (C) Marvell International Ltd. and its affiliates
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*
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* SPDX-License-Identifier: GPL-2.0
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*/
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#ifndef _DDR3_HWS_HW_TRAINING_H
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#define _DDR3_HWS_HW_TRAINING_H
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/* struct used for DLB configuration array */
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struct dlb_config {
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u32 reg_addr;
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u32 reg_data;
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};
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/* Topology update structure */
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struct topology_update_info {
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int update_ecc;
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u8 ecc;
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int update_width;
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u8 width;
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int update_ecc_pup3_mode;
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u8 ecc_pup_mode_offset;
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};
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/* Topology update defines */
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#define TOPOLOGY_UPDATE_WIDTH_16BIT 1
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#define TOPOLOGY_UPDATE_WIDTH_32BIT 0
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#define TOPOLOGY_UPDATE_WIDTH_32BIT_MASK 0xf
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#define TOPOLOGY_UPDATE_WIDTH_16BIT_MASK 0x3
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#define TOPOLOGY_UPDATE_ECC_ON 1
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#define TOPOLOGY_UPDATE_ECC_OFF 0
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#define TOPOLOGY_UPDATE_ECC_OFFSET_PUP4 4
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#define TOPOLOGY_UPDATE_ECC_OFFSET_PUP3 3
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/*
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* 1. L2 filter should be set at binary header to 0xd000000,
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* to avoid conflict with internal register IO.
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* 2. U-Boot modifies internal registers base to 0xf100000,
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* and than should update L2 filter accordingly to 0xf000000 (3.75 GB)
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*/
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/* temporary limit l2 filter to 3GiB (LSP issue) */
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#define L2_FILTER_FOR_MAX_MEMORY_SIZE 0xc0000000
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#define ADDRESS_FILTERING_END_REGISTER 0x8c04
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#define SUB_VERSION 0
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#endif /* _DDR3_HWS_HW_TRAINING_H */
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