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GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

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lai
2026-09-06 03:52:57 +08:00
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source/bootloader/u-boot-2020.01/board/freescale/ls2080a/README
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Freescale ls2080a_emu
This is a emulator target with limited peripherals.
Memory map from core's view
0x00_0000_0000 .. 0x00_000F_FFFF Boot Rom
0x00_0100_0000 .. 0x00_0FFF_FFFF CCSR
0x00_1800_0000 .. 0x00_181F_FFFF OCRAM
0x00_3000_0000 .. 0x00_3FFF_FFFF IFC region #1
0x00_8000_0000 .. 0x00_FFFF_FFFF DDR region #1
0x05_1000_0000 .. 0x05_FFFF_FFFF IFC region #2
0x80_8000_0000 .. 0xFF_FFFF_FFFF DDR region #2
Other addresses are either reserved, or not used directly by U-Boot.
This list should be updated when more addresses are used.
Booting Linux flavors which do not support 48-bit VA (< Linux 3.18)
-------------------------------------------------------------------
One needs to use appropriate bootargs to boot Linux flavors which do
not support 48-bit VA (for e.g. < Linux 3.18) by appending mem=2048M, as shown
below:
=> setenv bootargs 'console=ttyS1,115200 root=/dev/ram
earlycon=uart8250,mmio,0x21c0600,115200 default_hugepagesz=2m hugepagesz=2m
hugepages=16 mem=2048M'