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/cpu/arm926ejs/armada100/timer.c b/arch/arm/cpu/arm926ejs/armada100/timer.c
index ec73393..6d77ad3 100644
--- a/arch/arm/cpu/arm926ejs/armada100/timer.c
+++ b/arch/arm/cpu/arm926ejs/armada100/timer.c
@@ -142,7 +142,7 @@
* 2. Write key value to TMP_WSAR reg.
* 3. Perform write operation.
*/
-void reset_cpu(unsigned long ignored)
+void reset_cpu(void)
{
struct armd1mpmu_registers *mpmu =
(struct armd1mpmu_registers *) ARMD1_MPMU_BASE;
diff --git a/arch/arm/cpu/arm926ejs/mx25/reset.c b/arch/arm/cpu/arm926ejs/mx25/reset.c
index 38df1c9..7844a99 100644
--- a/arch/arm/cpu/arm926ejs/mx25/reset.c
+++ b/arch/arm/cpu/arm926ejs/mx25/reset.c
@@ -23,7 +23,7 @@
/*
* Reset the cpu by setting up the watchdog timer and let it time out
*/
-void reset_cpu(ulong ignored)
+void reset_cpu(void)
{
struct wdog_regs *regs = (struct wdog_regs *)IMX_WDT_BASE;
/* Disable watchdog and set Time-Out field to 0 */
diff --git a/arch/arm/cpu/arm926ejs/mx27/reset.c b/arch/arm/cpu/arm926ejs/mx27/reset.c
index 320b0a6..496fb30 100644
--- a/arch/arm/cpu/arm926ejs/mx27/reset.c
+++ b/arch/arm/cpu/arm926ejs/mx27/reset.c
@@ -23,7 +23,7 @@
/*
* Reset the cpu by setting up the watchdog timer and let it time out
*/
-void reset_cpu(ulong ignored)
+void reset_cpu(void)
{
struct wdog_regs *regs = (struct wdog_regs *)IMX_WDT_BASE;
/* Disable watchdog and set Time-Out field to 0 */
diff --git a/arch/arm/cpu/arm926ejs/mxs/mxs.c b/arch/arm/cpu/arm926ejs/mxs/mxs.c
index c936213..344b9b4 100644
--- a/arch/arm/cpu/arm926ejs/mxs/mxs.c
+++ b/arch/arm/cpu/arm926ejs/mxs/mxs.c
@@ -32,9 +32,9 @@
/* Lowlevel init isn't used on i.MX28, so just have a dummy here */
__weak void lowlevel_init(void) {}
-void reset_cpu(ulong ignored) __attribute__((noreturn));
+void reset_cpu(void) __attribute__((noreturn));
-void reset_cpu(ulong ignored)
+void reset_cpu(void)
{
struct mxs_rtc_regs *rtc_regs =
(struct mxs_rtc_regs *)MXS_RTC_BASE;
diff --git a/arch/arm/cpu/arm926ejs/spear/reset.c b/arch/arm/cpu/arm926ejs/spear/reset.c
index a316540..97a624e 100644
--- a/arch/arm/cpu/arm926ejs/spear/reset.c
+++ b/arch/arm/cpu/arm926ejs/spear/reset.c
@@ -11,7 +11,7 @@
#include <asm/arch/spr_syscntl.h>
#include <linux/delay.h>
-void reset_cpu(ulong ignored)
+void reset_cpu(void)
{
struct syscntl_regs *syscntl_regs_p =
(struct syscntl_regs *)CONFIG_SPEAR_SYSCNTLBASE;