u-boot.git/arch/powerpc/lib/traps.c, branch master Unnamed repository; edit this file 'description' to name the repository. ppc: Add a reset_cpu() function 2023-12-21T21:07:52+00:00 Simon Glass sjg@chromium.org 2023-12-16T03:14:07+00:00 5ee545a9db7455abec8c33bae0cbda0b1c3b66d4 The current do_reset() is called from a command context. Add a function which can be used from anywhere, as is done on ARM. This is only needed if CONFIG_SYSRESET is disabled. Since there are lots of reset functions, this one actually just calls do_reset(). Future refactoring could correct this. Signed-off-by: Simon Glass <sjg@chromium.org> 
The current do_reset() is called from a command context. Add a function
which can be used from anywhere, as is done on ARM.

This is only needed if CONFIG_SYSRESET is disabled.

Since there are lots of reset functions, this one actually just calls
do_reset(). Future refactoring could correct this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Revert "powerpc: fix regression in arch_initr_trap()" 2021-06-23T12:45:03+00:00 Tom Rini trini@konsulko.com 2021-06-03T13:39:00+00:00 8f0f26eb59006846348b59e1e9eca98b24cea333 With the changes in commit 588efcdd72fc ("powerpc: Don't use relative include for config.h in global_data.h") fixing the root of the problem, we no longer need this re-inclusion. This reverts commit f6c0d365d3e8ee8e4fd3ebe2ed957c2bca9d3328. Cc: Matt Merhar <mattmerhar@protonmail.com> Signed-off-by: Tom Rini <trini@konsulko.com> 
With the changes in commit 588efcdd72fc ("powerpc: Don't use relative
include for config.h in global_data.h") fixing the root of the problem,
we no longer need this re-inclusion.

This reverts commit f6c0d365d3e8ee8e4fd3ebe2ed957c2bca9d3328.

Cc: Matt Merhar <mattmerhar@protonmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
powerpc: fix regression in arch_initr_trap() 2021-05-26T21:26:07+00:00 Matt Merhar mattmerhar@protonmail.com 2021-05-17T17:32:48+00:00 f6c0d365d3e8ee8e4fd3ebe2ed957c2bca9d3328 The assembly output of the arch_initr_trap() function differed by a single byte after common.h was removed from traps.c: fff49a18 <arch_initr_trap>: fff49a18: 94 21 ff f0 stwu r1,-16(r1) fff49a1c: 7c 08 02 a6 mflr r0 fff49a20: 90 01 00 14 stw r0,20(r1) -fff49a24: 80 62 00 44 lwz r3,68(r2) +fff49a24: 80 62 00 38 lwz r3,56(r2) fff49a28: 4b ff 76 19 bl fff41040 <trap_init> fff49a2c: 80 01 00 14 lwz r0,20(r1) fff49a30: 38 60 00 00 li r3,0 fff49a34: 38 21 00 10 addi r1,r1,16 fff49a38: 7c 08 03 a6 mtlr r0 This was causing a consistent hard lockup during the MMC read / loading of the QoriQ FMan firmware on a P2041RDB board. Re-adding the header causes identical assembly to be emitted and allows the firmware loading and subsequent boot to succeed. Fixes: 401d1c4f5d ("common: Drop asm/global_data.h from common header") Signed-off-by: Matt Merhar <mattmerhar@protonmail.com> 
The assembly output of the arch_initr_trap() function differed by a
single byte after common.h was removed from traps.c:

 fff49a18 <arch_initr_trap>:
 fff49a18:      94 21 ff f0     stwu    r1,-16(r1)
 fff49a1c:      7c 08 02 a6     mflr    r0
 fff49a20:      90 01 00 14     stw     r0,20(r1)
-fff49a24:      80 62 00 44     lwz     r3,68(r2)
+fff49a24:      80 62 00 38     lwz     r3,56(r2)
 fff49a28:      4b ff 76 19     bl      fff41040 <trap_init>
 fff49a2c:      80 01 00 14     lwz     r0,20(r1)
 fff49a30:      38 60 00 00     li      r3,0
 fff49a34:      38 21 00 10     addi    r1,r1,16
 fff49a38:      7c 08 03 a6     mtlr    r0

This was causing a consistent hard lockup during the MMC read / loading
of the QoriQ FMan firmware on a P2041RDB board.

Re-adding the header causes identical assembly to be emitted and allows
the firmware loading and subsequent boot to succeed.

Fixes: 401d1c4f5d ("common: Drop asm/global_data.h from common header")
Signed-off-by: Matt Merhar <mattmerhar@protonmail.com>
common: Drop asm/global_data.h from common header 2021-02-02T20:33:42+00:00 Simon Glass sjg@chromium.org 2020-10-31T03:38:53+00:00 401d1c4f5d2d29c4bc4beaec95402ca23eb63295 Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com> 
Move this out of the common header and include it only where needed.  In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly.   Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
common: board_r: Drop arch-specific ifdefs around initr_trap 2021-01-15T19:36:12+00:00 Ovidiu Panait ovidiu.panait@windriver.com 2020-11-28T08:43:18+00:00 130845bac11ecd542587b2d2ce2b2fe87f112f1d In order to remove the arch-specific ifdefs around initr_trap, introduce arch_initr_trap weak initcall. Implementations for ppc/m68k/mips have been moved to arch/<arch>/lib/traps.c Default implementation is a nop stub. Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> 
In order to remove the arch-specific ifdefs around initr_trap, introduce
arch_initr_trap weak initcall. Implementations for ppc/m68k/mips have
been moved to arch/<arch>/lib/traps.c

Default implementation is a nop stub.

Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>