diff options
| author | Anup Patel <anup.patel@wdc.com> | 2020-08-17 18:12:49 +0530 |
|---|---|---|
| committer | Palmer Dabbelt <palmerdabbelt@google.com> | 2020-08-20 10:57:29 -0700 |
| commit | 2ac6795fcc085e8d03649f1bbd0d70aaff612cad (patch) | |
| tree | dfefdd222a88f7c4fae17de7affd5c954a42dd91 /drivers/clocksource/Makefile | |
| parent | cc7f3f72dc2ae2b383142896d79ca1e237ad7e8b (diff) | |
clocksource/drivers: Add CLINT timer driver
We add a separate CLINT timer driver for Linux RISC-V M-mode (i.e.
RISC-V NoMMU kernel).
The CLINT MMIO device provides three things:
1. 64bit free running counter register
2. 64bit per-CPU time compare registers
3. 32bit per-CPU inter-processor interrupt registers
Unlike other timer devices, CLINT provides IPI registers along with
timer registers. To use CLINT IPI registers, the CLINT timer driver
provides IPI related callbacks to arch/riscv.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Tested-by: Emil Renner Berhing <kernel@esmil.dk>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'drivers/clocksource/Makefile')
| -rw-r--r-- | drivers/clocksource/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile index eaedb7240ae7..1c444cc3bb44 100644 --- a/drivers/clocksource/Makefile +++ b/drivers/clocksource/Makefile @@ -89,6 +89,7 @@ obj-$(CONFIG_CLKSRC_ST_LPC) += clksrc_st_lpc.o obj-$(CONFIG_X86_NUMACHIP) += numachip.o obj-$(CONFIG_ATCPIT100_TIMER) += timer-atcpit100.o obj-$(CONFIG_RISCV_TIMER) += timer-riscv.o +obj-$(CONFIG_CLINT_TIMER) += timer-clint.o obj-$(CONFIG_CSKY_MP_TIMER) += timer-mp-csky.o obj-$(CONFIG_GX6605S_TIMER) += timer-gx6605s.o obj-$(CONFIG_HYPERV_TIMER) += hyperv_timer.o |