mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
3d8d9186c3
Currently we hard-code the number and initial addresses of QEMU's flash
banks, even though our code is perfectly able to gather the same
information from the DTB provided by QEMU.
This is especially annoying, since we have two slightly different
U-Boot configurations ("bare-metal" vs. loaded via Arm Trusted
Firmware), which need to be selected at build time.
Drop the two hard coded alternatives, and use
CONFIG_SYS_MAX_FLASH_BANKS_DETECT instead, which relies on the DTB to
figure out the actual flash configuration at runtime.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (c) 2017 Tuomas Tynkkynen
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*/
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#ifndef __CONFIG_H
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#define __CONFIG_H
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#include <linux/sizes.h>
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/* Physical memory map */
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#define CONFIG_SYS_SDRAM_BASE 0x40000000
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/* The DTB generated by QEMU is placed at start of RAM, stay away from there */
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#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + SZ_2M)
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#define CONFIG_SYS_LOAD_ADDR (CONFIG_SYS_SDRAM_BASE + SZ_2M)
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#define CONFIG_SYS_MALLOC_LEN SZ_16M
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#define CONFIG_SYS_BOOTM_LEN SZ_64M
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/* For timer, QEMU emulates an ARMv7/ARMv8 architected timer */
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#define CONFIG_SYS_HZ 1000
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/* Environment options */
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#define BOOT_TARGET_DEVICES(func) \
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func(USB, usb, 0) \
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func(SCSI, scsi, 0) \
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func(VIRTIO, virtio, 0) \
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func(DHCP, dhcp, na)
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#include <config_distro_bootcmd.h>
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#define CONFIG_EXTRA_ENV_SETTINGS \
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"fdt_high=0xffffffff\0" \
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"initrd_high=0xffffffff\0" \
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"fdt_addr=0x40000000\0" \
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"scriptaddr=0x40200000\0" \
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"pxefile_addr_r=0x40300000\0" \
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"kernel_addr_r=0x40400000\0" \
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"ramdisk_addr_r=0x44000000\0" \
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BOOTENV
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#define CONFIG_SYS_CBSIZE 512
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#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
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#define CONFIG_SYS_MAX_FLASH_BANKS_DETECT 2
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#define CONFIG_SYS_MAX_FLASH_SECT 256 /* Sector: 256K, Bank: 64M */
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#define CONFIG_CFI_FLASH_USE_WEAK_ACCESSORS
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#endif /* __CONFIG_H */
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