03fb0958c9
Currently on qemu-arm platforms environment is kept in RAM. Instead
use pflash device 1 to provide persistent environment support across
device reset.
Also (optionally) provide support for persistent environment across
qemu machine OFF/ON using following instructions:
- Create envstore.img using qemu-img:
qemu-img create -f raw envstore.img 64M
- Add a pflash drive parameter to the command line:
-drive if=pflash,format=raw,index=1,file=envstore.img
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
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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/* 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 CONFIG_ENV_ADDR 0x4000000
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#define CONFIG_ENV_SIZE SZ_256K
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#define BOOT_TARGET_DEVICES(func) \
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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_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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#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
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#define CONFIG_SYS_FLASH_BASE 0x0
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#define CONFIG_SYS_MAX_FLASH_BANKS 2
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#define CONFIG_SYS_MAX_FLASH_SECT 256 /* Sector: 256K, Bank: 64M */
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#endif /* __CONFIG_H */
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