reset: Remove addr parameter from reset_cpu()
Historically, the reset_cpu() function had an `addr` parameter which was
meant to pass in an address of the reset vector location, where the CPU
should reset to. This feature is no longer used anywhere in U-Boot as
all reset_cpu() implementations now ignore the passed value. Generic
code has been added which always calls reset_cpu() with `0` which means
this feature can no longer be used easily anyway.
Over time, many implementations seem to have "misunderstood" the
existence of this parameter as a way to customize/parameterize the reset
(e.g. COLD vs WARM resets). As this is not properly supported, the
code will almost always not do what it is intended to (because all
call-sites just call reset_cpu() with 0).
To avoid confusion and to clean up the codebase from unused left-overs
of the past, remove the `addr` parameter entirely. Code which intends
to support different kinds of resets should be rewritten as a sysreset
driver instead.
This transformation was done with the following coccinelle patch:
@@
expression argvalue;
@@
- reset_cpu(argvalue)
+ reset_cpu()
@@
identifier argname;
type argtype;
@@
- reset_cpu(argtype argname)
+ reset_cpu(void)
{ ... }
Signed-off-by: Harald Seiler <hws@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/mach-at91/armv7/reset.c b/arch/arm/mach-at91/armv7/reset.c
index 8f4c81d..1ea415e 100644
--- a/arch/arm/mach-at91/armv7/reset.c
+++ b/arch/arm/mach-at91/armv7/reset.c
@@ -15,7 +15,7 @@
#include <asm/arch/at91_rstc.h>
/* Reset the cpu by telling the reset controller to do so */
-void reset_cpu(ulong ignored)
+void reset_cpu(void)
{
at91_rstc_t *rstc = (at91_rstc_t *)ATMEL_BASE_RSTC;