Ilias ApalodimasandTom Rini
1174c99ab4
Currently, the bi_dram[] information is stored in the board info structure (bd). Because bd is only valid after reserve_board(), dram_init_banksize() must be called late in the initialization process. This limitation is problematic, as it forces us to rely on a variety of bespoke functions to determine board RAM, bank memory sizes, and other early setup requirements. By moving bi_dram[] into the global data (gd), we can run it earlier. This is particularly convenient since boards define their own dram_init_banksize() routines, which do not always rely on parsing Device Tree (DT) memory nodes. Additionally, U-Boot defaults to relocating to the top of the first memory bank. While boards currently use custom functions to override this behavior, having the DRAM bank information available earlier in gd makes relocating to a different bank trivial and standardizes the process. Reviewed-by: Anshul Dalal <anshuld@ti.com> Tested-by: Michal Simek <michal.simek@amd.com> # Versal Gen 2 Vek385 Tested-by: Anshul Dalal <anshuld@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Tested-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
32 lines
718 B
C
32 lines
718 B
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* (C) Copyright 2007 Semihalf
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*
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* Written by: Rafal Jaworowski <raj@semihalf.com>
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*
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* This file contains a routine to fetch data from the global_data structure.
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*/
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#include <api_public.h>
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#include <asm/global_data.h>
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#include "api_private.h"
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DECLARE_GLOBAL_DATA_PTR;
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int platform_sys_info(struct sys_info *si)
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{
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int i;
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si->clk_bus = gd->bus_clk;
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si->clk_cpu = gd->cpu_clk;
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for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
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platform_set_mr(si, gd->dram[i].start,
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gd->dram[i].size, MR_ATTR_DRAM);
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platform_set_mr(si, gd->ram_base, gd->ram_size, MR_ATTR_DRAM);
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platform_set_mr(si, gd->bd->bi_flashstart, gd->bd->bi_flashsize, MR_ATTR_FLASH);
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return 1;
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}
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