diff options
| author | Rick Chen <rick@andestech.com> | 2019-04-02 15:56:40 +0800 |
|---|---|---|
| committer | Andes <uboot@andestech.com> | 2019-04-08 09:45:08 +0800 |
| commit | a1f24875c346a1bf8940b793a27364631d9aabf7 (patch) | |
| tree | d3117a234e71e0518a3f0589b4d21db3d00ca696 /arch/riscv/include | |
| parent | 0d389468e2144f3ba3bdbc566c05c0c05dc14fc6 (diff) | |
riscv: Add a SYSCON driver for Andestech's PLMT
The platform-Level Machine Timer (PLMT) block
holds memory-mapped mtime register associated
with timer tick.
This driver implements the riscv_get_time() which
is required by the generic RISC-V timer driver.
Signed-off-by: Rick Chen <rick@andestech.com>
Cc: Greentime Hu <greentime@andestech.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Diffstat (limited to 'arch/riscv/include')
| -rw-r--r-- | arch/riscv/include/asm/global_data.h | 3 | ||||
| -rw-r--r-- | arch/riscv/include/asm/syscon.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/global_data.h b/arch/riscv/include/asm/global_data.h index b86791094bb..dffcd45bf01 100644 --- a/arch/riscv/include/asm/global_data.h +++ b/arch/riscv/include/asm/global_data.h @@ -21,6 +21,9 @@ struct arch_global_data { #ifdef CONFIG_ANDES_PLIC void __iomem *plic; /* plic base address */ #endif +#ifdef CONFIG_ANDES_PLMT + void __iomem *plmt; /* plmt base address */ +#endif #ifdef CONFIG_SMP struct ipi_data ipi[CONFIG_NR_CPUS]; #endif diff --git a/arch/riscv/include/asm/syscon.h b/arch/riscv/include/asm/syscon.h index a0862082612..26a008ca599 100644 --- a/arch/riscv/include/asm/syscon.h +++ b/arch/riscv/include/asm/syscon.h @@ -13,6 +13,7 @@ enum { RISCV_NONE, RISCV_SYSCON_CLINT, /* Core Local Interruptor (CLINT) */ RISCV_SYSCON_PLIC, /* Platform Level Interrupt Controller (PLIC) */ + RISCV_SYSCON_PLMT, /* Platform Level Machine Timer (PLMT) */ }; #endif /* _ASM_SYSCON_H */ |