diff options
Diffstat (limited to 'arch/riscv/cpu/fu740/spl.c')
| -rw-r--r-- | arch/riscv/cpu/fu740/spl.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/riscv/cpu/fu740/spl.c b/arch/riscv/cpu/fu740/spl.c index ea0b228..55e3034 100644 --- a/arch/riscv/cpu/fu740/spl.c +++ b/arch/riscv/cpu/fu740/spl.c @@ -6,6 +6,9 @@ #include <dm.h> #include <log.h> +#include <asm/csr.h> + +#define CSR_U74_FEATURE_DISABLE 0x7c1 int spl_soc_init(void) { @@ -21,3 +24,15 @@ int spl_soc_init(void) return 0; } + +void harts_early_init(void) +{ + /* + * Feature Disable CSR + * + * Clear feature disable CSR to '0' to turn on all features for + * each core. This operation must be in M-mode. + */ + if (CONFIG_IS_ENABLED(RISCV_MMODE)) + csr_write(CSR_U74_FEATURE_DISABLE, 0); +} |