diff options
Diffstat (limited to 'platform/fpga')
| -rw-r--r-- | platform/fpga/ariane/platform.c | 2 | ||||
| -rw-r--r-- | platform/fpga/openpiton/platform.c | 7 |
2 files changed, 9 insertions, 0 deletions
diff --git a/platform/fpga/ariane/platform.c b/platform/fpga/ariane/platform.c index 58a46c0..5acc446 100644 --- a/platform/fpga/ariane/platform.c +++ b/platform/fpga/ariane/platform.c @@ -26,6 +26,7 @@ #define ARIANE_PLIC_NUM_SOURCES 3 #define ARIANE_HART_COUNT 1 #define ARIANE_CLINT_ADDR 0x2000000 +#define ARIANE_ACLINT_MTIMER_FREQ 1000000 #define ARIANE_ACLINT_MSWI_ADDR (ARIANE_CLINT_ADDR + \ CLINT_MSWI_OFFSET) #define ARIANE_ACLINT_MTIMER_ADDR (ARIANE_CLINT_ADDR + \ @@ -44,6 +45,7 @@ static struct aclint_mswi_data mswi = { }; static struct aclint_mtimer_data mtimer = { + .mtime_freq = ARIANE_ACLINT_MTIMER_FREQ, .mtime_addr = ARIANE_ACLINT_MTIMER_ADDR + ACLINT_DEFAULT_MTIME_OFFSET, .mtime_size = ACLINT_DEFAULT_MTIME_SIZE, diff --git a/platform/fpga/openpiton/platform.c b/platform/fpga/openpiton/platform.c index a9bfa99..924053e 100644 --- a/platform/fpga/openpiton/platform.c +++ b/platform/fpga/openpiton/platform.c @@ -26,6 +26,7 @@ #define OPENPITON_DEFAULT_PLIC_NUM_SOURCES 2 #define OPENPITON_DEFAULT_HART_COUNT 3 #define OPENPITON_DEFAULT_CLINT_ADDR 0xfff1020000 +#define OPENPITON_DEFAULT_ACLINT_MTIMER_FREQ 1000000 #define OPENPITON_DEFAULT_ACLINT_MSWI_ADDR \ (OPENPITON_DEFAULT_CLINT_ADDR + CLINT_MSWI_OFFSET) #define OPENPITON_DEFAULT_ACLINT_MTIMER_ADDR \ @@ -49,6 +50,7 @@ static struct aclint_mswi_data mswi = { }; static struct aclint_mtimer_data mtimer = { + .mtime_freq = OPENPITON_DEFAULT_ACLINT_MTIMER_FREQ, .mtime_addr = OPENPITON_DEFAULT_ACLINT_MTIMER_ADDR + ACLINT_DEFAULT_MTIME_OFFSET, .mtime_size = ACLINT_DEFAULT_MTIME_SIZE, @@ -68,6 +70,7 @@ static int openpiton_early_init(bool cold_boot) void *fdt; struct platform_uart_data uart_data; struct plic_data plic_data; + unsigned long aclint_freq; uint64_t clint_addr; int rc; @@ -83,6 +86,10 @@ static int openpiton_early_init(bool cold_boot) if (!rc) plic = plic_data; + rc = fdt_parse_timebase_frequency(fdt, &aclint_freq); + if (!rc) + mtimer.mtime_freq = aclint_freq; + rc = fdt_parse_compat_addr(fdt, &clint_addr, "riscv,clint0"); if (!rc) { mswi.addr = clint_addr; |