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nds32: Remove dead reset_cpu() implementation

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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>
This commit is contained in:
Harald Seiler 2020-12-15 16:47:49 +01:00 committed by Tom Rini
parent c5219c4a18
commit 5075bf28d6
1 changed files with 0 additions and 22 deletions
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22
arch/nds32/cpu/n1213/start.S
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@ -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