Clean up

arch/risc-v/src/bl808/bl808_mm_init.c

@@ -235,8 +235,7 @@ void bl808_kernel_mappings(void)
 
   /* Begin mapping memory to MMU; note that at this point the MMU is not yet
    * active, so the page table virtual addresses are actually physical
-   * addresses and so forth. M-mode does not perform translations anyhow, so
-   * this mapping is quite simple to do
+   * addresses and so forth.
    */
 
   /* Map I/O region, use enough large page tables for the IO region. */
@@ -291,7 +290,7 @@ void bl808_mm_init(void)
 
   bl808_kernel_mappings();
 
-  /* Enable MMU (note: system is still in M-mode) */
+  /* Enable MMU */
 
   binfo("mmu_enable: satp=%" PRIuPTR "\n", g_kernel_pgt_pbase);
   mmu_enable(g_kernel_pgt_pbase, 0);