Drop CONFIG_INIT_CRITICAL

[oweals/u-boot.git] / arch / nds32 / cpu / n1213 / start.S

diff --git a/arch/nds32/cpu/n1213/start.S b/arch/nds32/cpu/n1213/start.S
index aa9457f5e4f1b25edc6bb535d8be0c31bc51e3a3..cf966e2132e8e438a5c8cf55b00adddb017ca592 100644 (file)
--- a/arch/nds32/cpu/n1213/start.S
+++ b/arch/nds32/cpu/n1213/start.S
@@ -200,14 +200,6 @@ update_gp:
        jal     turnoff_watchdog
 #endif
 
-/*
- * Do CPU critical regs init only at reboot,
- * not when booting from ram
- */
-#ifdef CONFIG_INIT_CRITICAL
-       jal     cpu_init_crit           ! Do CPU critical regs init
-#endif
-
 /*
  * Set stackpointer in internal RAM to call board_init_f
  * $sp must be 8-byte alignment for ABI compliance.
@@ -318,49 +310,6 @@ call_board_init_r:
        /* jump to it ... */
        jr      $lp                     /* jump to board_init_r() */
 
-/*
- * Initialize CPU critical registers
- *
- *     1.      Setup control registers
- *             1.1 Mask all IRQs
- *             1.2 Flush cache and TLB
- *             1.3 Disable MMU and cache
- *     2.      Setup memory timing
- */
-
-cpu_init_crit:
-
-       move    $r0, $lp                /* push ra */
-
-       /* Disable Interrupts by clear GIE in $PSW reg */
-       setgie.d
-
-       /* Flush caches and TLB */
-       /* Invalidate caches */
-       jal     invalidate_icac
-       jal     invalidate_dcac
-
-       /* Flush TLB */
-       mfsr    $p0, $MMU_CFG
-       andi    $p0, $p0, 0x3                   ! MMPS
-       li      $p1, 0x2                        ! TLB MMU
-       bne     $p0, $p1, 1f
-       tlbop   flushall                        ! Flush TLB
-
-1:
-       ! Disable MMU, Dcache
-       ! Whitiger is MMU disabled when reset
-       ! Disable the D$
-       mfsr    $p0, MR_CAC_CTL                 ! Get the $CACHE_CTL reg
-       li      $p1, DIS_DCAC
-       and     $p0, $p0, $p1                   ! Set DC_EN bit
-       mtsr    $p0, MR_CAC_CTL                 ! write back the $CACHE_CTL reg
-       isb
-
-       move    $lp, $r0
-2:
-       ret
-
 /*
  * Invalidate I$
  */