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| author | Anup Patel <anup.patel@wdc.com> | 2021-07-24 07:59:56 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2021-08-14 06:32:44 +0300 |
| commit | b35f7826b019623d096b6b5c1803232818834e5b (patch) | |
| tree | 90c49f942a467d157694f00ab0cd823716cf782e | |
| parent | f3a0eb8583828b0223f9e924672fc455359ea6c8 (diff) | |
| download | opensbi-b35f7826b019623d096b6b5c1803232818834e5b.tar.xz | |
lib: utils/timer: Allow ACLINT MTIMER supporting only 32-bit MMIO
We can have ACLINT MTIMER devices which only support 32-bit MMIO
accesses on RV64 system so this patch adds a boolean DT property
"mtimer,no-64bit-mmio" to detect this from MTIMER DT node.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
| -rw-r--r-- | lib/utils/timer/fdt_timer_mtimer.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/utils/timer/fdt_timer_mtimer.c b/lib/utils/timer/fdt_timer_mtimer.c index b08ed38..15a36ed 100644 --- a/lib/utils/timer/fdt_timer_mtimer.c +++ b/lib/utils/timer/fdt_timer_mtimer.c @@ -58,6 +58,9 @@ static int timer_mtimer_cold_init(void *fdt, int nodeoff, mt->mtime_size = size[0]; mt->mtimecmp_addr = addr[1]; mt->mtimecmp_size = size[1]; + /* Parse additional ACLINT MTIMER properties */ + if (fdt_getprop(fdt, nodeoff, "mtimer,no-64bit-mmio", &rc)) + mt->has_64bit_mmio = false; } rc = aclint_mtimer_cold_init(mt, mtmaster); |