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fix: unknown CSR 'mhcr' (arch/riscv/cpu/c9xx/cpu.c)

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Signed-off-by: Han Gao <gaohan@iscas.ac.cn>
This commit is contained in:
Han Gao
2023-07-23 16:28:03 +08:00
committed by Han Gao
parent 5532ffee67
commit a75631c2e3
1 changed files with 4 additions and 3 deletions
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7
arch/riscv/cpu/c9xx/cpu.c
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@@ -125,10 +125,11 @@ void icache_enable(void)
#ifdef CONFIG_SPL_BUILD
#ifdef CONFIG_SPL_RISCV_MMODE
#ifdef CONFIG_TARGET_LIGHT_C910
// mhcr is 0x7c1
asm volatile (
"csrr x29, mhcr\n\t"
"csrr x29, 0x7c1\n\t"
"ori x28, x29, 0x1\n\t"
"csrw mhcr, x28\n\t"
"csrw 0x7c1, x28\n\t"
);
#endif
#endif
@@ -142,7 +143,7 @@ void dcache_enable(void)
#ifdef CONFIG_TARGET_LIGHT_C910
asm volatile (
"li x29, 0x11ff\n\t"
"csrw mhcr, x29\n\t"
"csrw 0x7c1, x29\n\t"
);
#endif
#endif