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https://github.com/brain-hackers/u-boot-brain
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![Peter Tyser](/assets/img/avatar_default.png)
The following changes allow U-Boot to fully relocate from flash to RAM: - Remove linker scripts' .fixup sections from the .text section - Add -mrelocatable to PLATFORM_RELFLAGS for all boards - Define CONFIG_RELOC_FIXUP_WORKS for all boards Previously, U-Boot would partially relocate, but statically initialized pointers needed to be manually relocated. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
/*
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* Copyright 2009 Freescale Semiconductor, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*/
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#ifndef _ASM_CONFIG_H_
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#define _ASM_CONFIG_H_
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#ifndef CONFIG_MAX_MEM_MAPPED
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#if defined(CONFIG_4xx) || defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
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#define CONFIG_MAX_MEM_MAPPED ((phys_size_t)2 << 30)
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#else
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#define CONFIG_MAX_MEM_MAPPED (256 << 20)
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#endif
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#endif
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/* Check if boards need to enable FSL DMA engine for SDRAM init */
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#if !defined(CONFIG_FSL_DMA) && defined(CONFIG_DDR_ECC)
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#if (defined(CONFIG_MPC83xx) && defined(CONFIG_DDR_ECC_INIT_VIA_DMA)) || \
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((defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)) && \
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!defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER))
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#define CONFIG_FSL_DMA
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#endif
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#endif
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#if defined(CONFIG_MPC8572) || defined(CONFIG_P1020) || \
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defined(CONFIG_P2020) || defined(CONFIG_MPC8641)
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#define CONFIG_MAX_CPUS 2
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#elif defined(CONFIG_PPC_P4080)
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#define CONFIG_MAX_CPUS 8
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#else
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#define CONFIG_MAX_CPUS 1
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#endif
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/* Relocation to SDRAM works on all PPC boards */
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#define CONFIG_RELOC_FIXUP_WORKS
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#endif /* _ASM_CONFIG_H_ */
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