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>
67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (c) 2011 The Chromium OS Authors.
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*
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* (C) Copyright 2000 - 2002
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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********************************************************************
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* NOTE: This header file defines an interface to U-Boot. Including
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* this (unmodified) header file in another file is considered normal
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* use of U-Boot, and does *not* fall under the heading of "derived
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* work".
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********************************************************************
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*/
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#ifndef __ASM_GENERIC_U_BOOT_H__
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#define __ASM_GENERIC_U_BOOT_H__
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/*
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* Board information passed to Linux kernel from U-Boot
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*
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* include/asm-ppc/u-boot.h
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*/
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#ifndef __ASSEMBLY__
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#include <asm/types.h>
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#include <linux/types.h>
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struct bd_info {
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unsigned long bi_flashstart; /* start of FLASH memory */
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unsigned long bi_flashsize; /* size of FLASH memory */
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unsigned long bi_flashoffset; /* reserved area for startup monitor */
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#ifdef CONFIG_ARM
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unsigned long bi_arm_freq; /* arm frequency */
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unsigned long bi_dsp_freq; /* dsp core frequency */
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unsigned long bi_ddr_freq; /* ddr frequency */
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#endif
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#if defined(CONFIG_MPC8xx) || defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
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unsigned long bi_immr_base; /* base of IMMR register */
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#endif
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#if defined(CONFIG_M68K)
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unsigned long bi_mbar_base; /* base of internal registers */
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#endif
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#if defined(CONFIG_MPC83xx)
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unsigned long bi_immrbar;
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#endif
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unsigned long bi_bootflags; /* boot / reboot flag (Unused) */
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unsigned long bi_ip_addr; /* IP Address */
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unsigned short bi_ethspeed; /* Ethernet speed in Mbps */
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unsigned long bi_intfreq; /* Internal Freq, in MHz */
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unsigned long bi_busfreq; /* Bus Freq, in MHz */
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#if defined(CONFIG_M68K)
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unsigned long bi_pcifreq; /* PCI Bus Freq, in MHz */
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#endif
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#if defined(CONFIG_EXTRA_CLOCK)
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unsigned long bi_inpfreq; /* input Freq in MHz */
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unsigned long bi_vcofreq; /* vco Freq in MHz */
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unsigned long bi_flbfreq; /* Flexbus Freq in MHz */
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#endif
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ulong bi_arch_number; /* unique id for this board */
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ulong bi_boot_params; /* where this board expects params */
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};
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#endif /* __ASSEMBLY__ */
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#endif /* __ASM_GENERIC_U_BOOT_H__ */
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