From: Yimin Gu <ustcymgu@gmail.com>
Some RISC-V 32bit cores do not have an MMU, and the kernel should be
able to build for them. This patch enables the RV32 to be built with
no MMU support.
Signed-off-by: Yimin Gu <ustcymgu@gmail.com>
CC: Jesse Taube <Mr.Bossman075@gmail.com>
Tested-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Jesse Taube <Mr.Bossman075@gmail.com>
---
V1->V2:
- Fix typo in commit description
V2->V3:
- No change
---
arch/riscv/Kconfig | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index c5e42cc37604..d1f661425790 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -177,8 +177,8 @@ config MMU
config PAGE_OFFSET
hex
- default 0xC0000000 if 32BIT
- default 0x80000000 if 64BIT && !MMU
+ default 0xC0000000 if 32BIT && MMU
+ default 0x80000000 if !MMU
default 0xff60000000000000 if 64BIT
config KASAN_SHADOW_OFFSET
@@ -279,7 +279,6 @@ config ARCH_RV32I
select GENERIC_LIB_ASHRDI3
select GENERIC_LIB_LSHRDI3
select GENERIC_LIB_UCMPDI2
- select MMU
config ARCH_RV64I
bool "RV64I"
--
2.39.0