Unverified Commit fc76324f authored Jan 06, 2020 by Olof Johansson Committed by Palmer Dabbelt Jan 22, 2020

riscv: keep 32-bit kernel to 32-bit phys_addr_t



While rv32 technically has 34-bit physical addresses, no current platforms
use it and it's likely to shake out driver bugs.

Let's keep 64-bit phys_addr_t off on 32-bit builds until one shows up,
since other work will be needed to make such a system useful anyway.

PHYS_ADDR_T_64BIT is def_bool 64BIT, so just remove the select.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

parent ea01ce67

arch/riscv/Kconfig

+0 −2

Original line number	Diff line number	Diff line
		@@ -12,8 +12,6 @@ config 32BIT

		config RISCV
		def_bool y
		# even on 32-bit, physical (and DMA) addresses are > 32-bits
		select PHYS_ADDR_T_64BIT
		select OF
		select OF_EARLY_FLATTREE
		select OF_IRQ

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