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author | Harald Seiler <hws@denx.de> | 2020-12-15 18:47:52 +0300 |
---|---|---|
committer | Tom Rini <trini@konsulko.com> | 2021-03-02 22:03:02 +0300 |
commit | 35b65dd8ef3d37a088ee9169763a4d891aed618d (patch) | |
tree | c99fa5faa4f958d693f1deb2de9356064e78e437 /arch/arm/mach-at91 | |
parent | 3394f398b5f37d930b9ae1b6638fe26b0cc735d8 (diff) | |
download | u-boot-35b65dd8ef3d37a088ee9169763a4d891aed618d.tar.xz |
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>
Diffstat (limited to 'arch/arm/mach-at91')
-rw-r--r-- | arch/arm/mach-at91/arm920t/reset.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-at91/arm926ejs/reset.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-at91/armv7/reset.c | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/mach-at91/arm920t/reset.c b/arch/arm/mach-at91/arm920t/reset.c index d92bc57d66..91e375146a 100644 --- a/arch/arm/mach-at91/arm920t/reset.c +++ b/arch/arm/mach-at91/arm920t/reset.c @@ -24,7 +24,7 @@ void __attribute__((weak)) board_reset(void) /* true empty function for defining weak symbol */ } -void reset_cpu(ulong ignored) +void reset_cpu(void) { at91_st_t *st = (at91_st_t *) ATMEL_BASE_ST; diff --git a/arch/arm/mach-at91/arm926ejs/reset.c b/arch/arm/mach-at91/arm926ejs/reset.c index 56fbbd991e..6acbfa3301 100644 --- a/arch/arm/mach-at91/arm926ejs/reset.c +++ b/arch/arm/mach-at91/arm926ejs/reset.c @@ -12,7 +12,7 @@ #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; diff --git a/arch/arm/mach-at91/armv7/reset.c b/arch/arm/mach-at91/armv7/reset.c index 8f4c81d1af..1ea415ea9e 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; |