diff options
| author | Anup Patel <anup@brainfault.org> | 2018-12-04 19:25:05 +0530 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@sifive.com> | 2019-01-09 14:59:57 -0800 |
| commit | 27de1f541f1f911bc2242ae68ef7375247b36c7d (patch) | |
| tree | 1f88825dd6ee4aa8424f9f71f9ca1e6a0aed3158 /drivers/tty/serial/Makefile | |
| parent | 801009424e05cf110f016d7fac7fcf20ef94941a (diff) | |
tty/serial: Add RISC-V SBI earlycon support
In RISC-V, the M-mode runtime firmware provide SBI calls for
debug prints. This patch adds earlycon support using RISC-V
SBI console calls. To enable it, just pass "earlycon=sbi" in
kernel parameters.
Signed-off-by: Anup Patel <anup@brainfault.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Diffstat (limited to 'drivers/tty/serial/Makefile')
| -rw-r--r-- | drivers/tty/serial/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile index 8c303736b7e8..1511e8a9f856 100644 --- a/drivers/tty/serial/Makefile +++ b/drivers/tty/serial/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_SERIAL_CORE) += serial_core.o obj-$(CONFIG_SERIAL_EARLYCON) += earlycon.o obj-$(CONFIG_SERIAL_EARLYCON_ARM_SEMIHOST) += earlycon-arm-semihost.o +obj-$(CONFIG_SERIAL_EARLYCON_RISCV_SBI) += earlycon-riscv-sbi.o # These Sparc drivers have to appear before others such as 8250 # which share ttySx minor node space. Otherwise console device |