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![Tuomas Tynkkynen](/assets/img/avatar_default.png)
CONFIG_SYS_CBSIZE determines the maximum length of the kernel command line, and the default value of 256 is too small for booting some Linux images in the wild. Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/*
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* Copyright (c) 2017 Tuomas Tynkkynen
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*
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* SPDX-License-Identifier: GPL-2.0+
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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_NR_DRAM_BANKS 1
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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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/* QEMU implements a 62.5MHz architected timer */
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/* FIXME: can we rely on CNTFREQ instead of hardcoding this fact here? */
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#define CONFIG_SYS_ARCH_TIMER
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#define CONFIG_SYS_HZ 1000
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#define CONFIG_SYS_HZ_CLOCK 62500000
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/* For block devices, QEMU emulates an ICH9 AHCI controller over PCI */
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#define CONFIG_SYS_SCSI_MAX_SCSI_ID 6
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/* Environment options */
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#define CONFIG_ENV_SIZE SZ_64K
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#define BOOT_TARGET_DEVICES(func) \
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func(SCSI, scsi, 0)
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#include <config_distro_bootcmd.h>
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#define CONFIG_PREBOOT "pci enum"
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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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#endif /* __CONFIG_H */
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