[U-Boot] [PATCH 2/3] riscv: qemu: Use different SYS_TEXT_BASE for S-mode
Anup Patel
anup at brainfault.org
Tue Nov 20 09:14:18 UTC 2018
When u-boot runs in S-mode, the M-mode runtime firmware
(BBL or equivalent) uses memory range in 0x80000000 to
0x80200000. Due to this, we cannot use 0x80000000 as
SYS_TEXT_BASE when running in S-mode. Instead for S-mode,
we use 0x80200000 as SYS_TEXT_BASE.
Even Linux RISC-V kernel ignores/reserves memory range
0x80000000 to 0x80200000 because it runs in S-mode.
Signed-off-by: Anup Patel <anup at brainfault.org>
---
board/emulation/qemu-riscv/Kconfig | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/board/emulation/qemu-riscv/Kconfig b/board/emulation/qemu-riscv/Kconfig
index 37a80db6a9..88f56f30e5 100644
--- a/board/emulation/qemu-riscv/Kconfig
+++ b/board/emulation/qemu-riscv/Kconfig
@@ -13,7 +13,8 @@ config SYS_CONFIG_NAME
default "qemu-riscv"
config SYS_TEXT_BASE
- default 0x80000000
+ default 0x80000000 if !RISCV_SMODE
+ default 0x80200000 if RISCV_SMODE
config BOARD_SPECIFIC_OPTIONS # dummy
def_bool y
--
2.17.1
More information about the U-Boot
mailing list