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>

2 files changed, 2 insertions, 2 deletions

diff --git a/arch/arm/mach-uniphier/arm32/psci.c b/arch/arm/mach-uniphier/arm32/psci.c
index a4d260aece..fbb6ebca77 100644
--- a/arch/arm/mach-uniphier/arm32/psci.c
+++ b/arch/arm/mach-uniphier/arm32/psci.c
@@ -158,5 +158,5 @@ s32 __secure psci_cpu_on(u32 function_id, u32 cpuid, u32 entry_point,
 
 void __secure psci_system_reset(void)
 {
-	reset_cpu(0);
+	reset_cpu();
 }
diff --git a/arch/arm/mach-uniphier/reset.c b/arch/arm/mach-uniphier/reset.c
index 5fffd23e9a..dddb48ec4a 100644
--- a/arch/arm/mach-uniphier/reset.c
+++ b/arch/arm/mach-uniphier/reset.c
@@ -18,7 +18,7 @@
 #define __SECURE
 #endif
 
-void __SECURE reset_cpu(unsigned long ignored)
+void __SECURE reset_cpu(void)
 {
 	u32 tmp;