8d78a6b674
The ARMv8-R64 architecture introduces optional VMSA (paging based MMU) support in the EL1/0 translation regime, which makes that part mostly compatible to ARMv8-A. Add a new board variant to describe the "BASE-R64" FVP model, which inherits a lot from the existing v8-A FVP support. One major difference is that the memory map in "inverted": DRAM starts at 0x0, MMIO is at 2GB [1]. * Create new TARGET_VEXPRESS64_BASER_FVP target, sharing most of the exising configuration. * Implement inverted memory map in vexpress_aemv8.h * Create vexpress_aemv8r defconfig * Provide an MMU memory map for the BASER_FVP * Update vexpress64 documentation At the moment the boot-wrapper is the only supported secure firmware. As there is no official DT for the board yet, we rely on it being supplied by the boot-wrapper into U-Boot, so use OF_HAS_PRIOR_STAGE, and go with a dummy DT for now. [1] https://developer.arm.com/documentation/100964/1114/Base-Platform/Base---memory/BaseR-Platform-memory-map Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com> [Andre: rebase and add Linux kernel header] Signed-off-by: Andre Przywara <andre.przywara@arm.com> [trini: Add MAINTAINERS entry for Peter]
15 lines
454 B
Plaintext
15 lines
454 B
Plaintext
CONFIG_ARM=y
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CONFIG_ARCH_VEXPRESS64=y
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CONFIG_NR_DRAM_BANKS=2
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CONFIG_DEFAULT_DEVICE_TREE="arm_fvp"
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CONFIG_IDENT_STRING=" vexpress_aemv8r64"
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CONFIG_TARGET_VEXPRESS64_BASER_FVP=y
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CONFIG_REMAKE_ELF=y
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CONFIG_BOOTDELAY=3
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CONFIG_USE_BOOTARGS=y
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CONFIG_BOOTARGS="console=ttyAMA0 earlycon=pl011,0x9c090000 rootfstype=ext4 root=/dev/vda2 rw rootwait"
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# CONFIG_DISPLAY_CPUINFO is not set
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CONFIG_SYS_PROMPT="VExpress64# "
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# CONFIG_MMC is not set
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CONFIG_VIRTIO_MMIO=y
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