[GitHub] [incubator-nuttx] gustavonihei commented on a change in pull request #5878: arch/risc-v: Use riscv_fpuconfig to enable FPU

[GitBox <gi...@apache.org>]

gustavonihei commented on a change in pull request #5878:
URL: https://github.com/apache/incubator-nuttx/pull/5878#discussion_r836774192



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File path: arch/risc-v/src/c906/c906_start.c
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@@ -73,6 +73,10 @@ void __c906_start(uint32_t mhartid)
   const uint32_t *src;
   uint32_t *dest;
 
+  /* Configure FPU */
+
+  riscv_fpuconfig();

Review comment:
       It seems FPU is already enabled here:
   https://github.com/apache/incubator-nuttx/blob/master/arch/risc-v/src/c906/c906_head.S#L55-L60
   
   **MPFS** seems to also enable the FPU prior to jumping to C code:
   https://github.com/apache/incubator-nuttx/blob/master/arch/risc-v/src/mpfs/mpfs_head.S#L119-L131




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