diff options
| author | Rick Chen <rick@andestech.com> | 2018-11-07 09:34:06 +0800 |
|---|---|---|
| committer | Andes <uboot@andestech.com> | 2018-11-26 13:58:01 +0800 |
| commit | 52923c6db7f00e0197ec894c8c1bb8a7681974bb (patch) | |
| tree | 903fe89d39120e2cfaf553f8cdfe0aeb2b5b106c /arch/riscv/cpu/ax25/cpu.c | |
| parent | bae2d72507abe8e17bdac30027c8748d22721024 (diff) | |
riscv: cache: Implement i/dcache [status, enable, disable]
AndeStar RISC-V(V5) provide mcache_ctl register which
can configure I/D cache as enabled or disabled.
This CSR will be encapsulated by CONFIG_RISCV_NDS.
If you want to configure cache on AndeStar V5
AE350 platform. YOu can enable [*] AndeStar V5 ISA support
by make menuconfig.
This approach also provide the expansion when the
vender specific features are going to join in.
Signed-off-by: Rick Chen <rick@andestech.com>
Cc: Greentime Hu <greentime@andestech.com>
Diffstat (limited to 'arch/riscv/cpu/ax25/cpu.c')
| -rw-r--r-- | arch/riscv/cpu/ax25/cpu.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/riscv/cpu/ax25/cpu.c b/arch/riscv/cpu/ax25/cpu.c index fddcc156c3..76689b21d3 100644 --- a/arch/riscv/cpu/ax25/cpu.c +++ b/arch/riscv/cpu/ax25/cpu.c @@ -6,6 +6,7 @@ /* CPU specific code */ #include <common.h> +#include <asm/cache.h> /* * cleanup_before_linux() is called just before we call linux @@ -18,6 +19,9 @@ int cleanup_before_linux(void) disable_interrupts(); /* turn off I/D-cache */ + cache_flush(); + icache_disable(); + dcache_disable(); return 0; } |