diff options
| author | Philipp Hug <philipp@hug.cx> | 2019-02-06 06:48:51 +0100 |
|---|---|---|
| committer | ron minnich <rminnich@gmail.com> | 2019-02-13 04:49:14 +0000 |
| commit | b09e5001f3071e82ccf7ec64c9cf9a4768d660b1 (patch) | |
| tree | f1a673efd5da4bcd24886b7c049335f52b8c1c75 /src/soc | |
| parent | 540a66404591ef41e2581df01647e5788ef0c808 (diff) | |
riscv: Add initial support for 32bit boards
* Adding separate targets for 32bit and 64bit qemu
* Using the riscv64 toolchain for 32bit builds requires setting -m elf32lriscv
* rv32/rv64 is currently configured with ARCH_RISCV_RV32/RV64 and not per stage.
This should probably be changed later.
TEST=Boots to "Payload not loaded." on 32bit qemu using the following commands:
util/riscv/make-spike-elf.sh build/coreboot.rom build/coreboot.elf
qemu-system-riscv32 -M virt -m 1024M -nographic -kernel build/coreboot.elf
Change-Id: I35e59b459d1770df10b51fe9e77dcc474d7c75a0
Signed-off-by: Philipp Hug <philipp@hug.cx>
Reviewed-on: https://review.coreboot.org/c/31253
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: ron minnich <rminnich@gmail.com>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/ucb/riscv/Kconfig | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/src/soc/ucb/riscv/Kconfig b/src/soc/ucb/riscv/Kconfig index aa352d932b..ad48c1cb76 100644 --- a/src/soc/ucb/riscv/Kconfig +++ b/src/soc/ucb/riscv/Kconfig @@ -1,5 +1,4 @@ config SOC_UCB_RISCV - select ARCH_RISCV_RV64 select ARCH_RISCV_S select ARCH_RISCV_U select ARCH_RISCV_PMP @@ -15,6 +14,8 @@ config SOC_UCB_RISCV if SOC_UCB_RISCV +if ARCH_RISCV_RV64 + config RISCV_ARCH string default "rv64imafd" @@ -27,6 +28,24 @@ config RISCV_CODEMODEL string default "medany" +endif + +if ARCH_RISCV_RV32 + +config RISCV_ARCH + string + default "rv32im" + +config RISCV_ABI + string + default "ilp32" + +config RISCV_CODEMODEL + string + default "medany" + +endif + config RISCV_WORKING_HARTID int default 0 |