diff options
| author | Alistair Francis <alistair.francis@wdc.com> | 2019-01-22 16:50:50 -0800 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2019-02-08 09:18:46 +0530 |
| commit | f9b033e57769bf24fc13293afdd43c1979527615 (patch) | |
| tree | 7dd04479271d59a5b9bdf486c893edd82e5a2c08 | |
| parent | f4cf6da7ff2d97f74129a6f4f333991af596111e (diff) | |
platform: clint: Allow running on 32-bit systems
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
| -rw-r--r-- | platform/common/sys/clint.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/platform/common/sys/clint.c b/platform/common/sys/clint.c index 78ea118..ee79a54 100644 --- a/platform/common/sys/clint.c +++ b/platform/common/sys/clint.c @@ -87,7 +87,15 @@ static volatile u64 *clint_time_cmp; u64 clint_timer_value(void) { +#if __riscv_xlen == 64 return readq_relaxed(clint_time_val); +#else + u64 tmp; + tmp = readl_relaxed((void *)clint_time_val + 0x04); + tmp <<= 32; + tmp |= readl_relaxed(clint_time_val); + return tmp; +#endif } void clint_timer_event_stop(void) @@ -98,7 +106,12 @@ void clint_timer_event_stop(void) return; /* Clear CLINT Time Compare */ +#if __riscv_xlen == 64 writeq_relaxed(-1ULL, &clint_time_cmp[target_hart]); +#else + writel_relaxed(-1UL, &clint_time_cmp[target_hart]); + writel_relaxed(-1UL, (void *)(&clint_time_cmp[target_hart]) + 0x04); +#endif } void clint_timer_event_start(u64 next_event) @@ -109,7 +122,13 @@ void clint_timer_event_start(u64 next_event) return; /* Program CLINT Time Compare */ +#if __riscv_xlen == 64 writeq_relaxed(next_event, &clint_time_cmp[target_hart]); +#else + u32 mask = -1UL; + writel_relaxed(next_event & mask, &clint_time_cmp[target_hart]); + writel_relaxed(next_event >> 32, (void *)(&clint_time_cmp[target_hart]) + 0x04); +#endif } int clint_warm_timer_init(void) @@ -121,7 +140,12 @@ int clint_warm_timer_init(void) return -1; /* Clear CLINT Time Compare */ +#if __riscv_xlen == 64 writeq_relaxed(-1ULL, &clint_time_cmp[target_hart]); +#else + writel_relaxed(-1UL, &clint_time_cmp[target_hart]); + writel_relaxed(-1UL, (void *)(&clint_time_cmp[target_hart]) + 0x04); +#endif return 0; } |