nds32: Remove dead reset_cpu() implementation

nds32 is one of the only architectures which still have a reset_cpu()
implementation that makes use of the `addr` parameter.  The rest of
U-Boot now ignores it and passes 0 everywhere.  It turns out that even
here, reset_cpu() is no longer referenced anywhere; reset is either not
implemented (e.g. ae3xx) or realized using a WDT (e.g. ag101).

Remove this left-over implementation in preparation for the removal of
the `addr` parameter in the entire tree.

Cc: Rick Chen <rick@andestech.com>
Signed-off-by: Harald Seiler <hws@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Rick Chen <rick@andestech.com>

diff --git a/arch/nds32/cpu/n1213/start.S b/arch/nds32/cpu/n1213/start.S
index 386c199..3395721 100644 (file)
--- a/arch/nds32/cpu/n1213/start.S
+++ b/arch/nds32/cpu/n1213/start.S
@@ -500,25 +500,3 @@ software_interrupt:
        bal     do_interruption
 
        .align  5
-
-/*
- * void reset_cpu(ulong addr);
- * $r0: input address to jump to
- */
-.globl reset_cpu
-reset_cpu:
-/* No need to disable MMU because we never enable it */
-
-       bal     invalidate_icac
-       bal     invalidate_dcac
-       mfsr    $p0, $MMU_CFG
-       andi    $p0, $p0, 0x3                   ! MMPS
-       li      $p1, 0x2                        ! TLB MMU
-       bne     $p0, $p1, 1f
-       tlbop   flushall                        ! Flush TLB
-1:
-       mfsr    $p0, MR_CAC_CTL                 ! Get the $CACHE_CTL reg
-       li      $p1, DIS_DCAC
-       and     $p0, $p0, $p1                   ! Clear the DC_EN bit
-       mtsr    $p0, MR_CAC_CTL                 ! Write back the $CACHE_CTL reg
-       br      $r0                             ! Jump to the input address