arch/mips/cpu/cpu.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * (C) Copyright 2003
 * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
 */

#include <common.h>
#include <command.h>
#include <init.h>
#include <linux/compiler.h>
#include <asm/cache.h>
#include <asm/mipsregs.h>
#include <asm/reboot.h>

#if !CONFIG_IS_ENABLED(SYSRESET)
void __weak _machine_restart(void)
{
	fprintf(stderr, "*** reset failed ***\n");

	while (1)
		/* NOP */;
}

int do_reset(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
	_machine_restart();

	return 0;
}
#endif

int arch_cpu_init(void)
{
	mips_cache_probe();
	return 0;
}
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> 2018-05-06 17:58:06 -04:00			`// SPDX-License-Identifier: GPL-2.0+`
MIPS: add board qemu-mips64 support Both big-endian and little-endian are tested with below commands: Rom version: (Default, Now we config it as rom version) qemu-system-mips64el -M mips -bios u-boot.bin -cpu MIPS64R2-generic -nographic qemu-system-mips64 -M mips -bios u-boot.bin -cpu MIPS64R2-generic -nographic Ram version: qemu-system-mips64el -M mips -cpu MIPS64R2-generic -kernel u-boot -nographic qemu-system-mips64 -M mips -cpu MIPS64R2-generic -kernel u-boot -nographic Signed-off-by: Zhizhou Zhang <etou.zh@gmail.com> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> 2012-10-16 15:02:08 +02:00			`/*`
			`* (C) Copyright 2003`
			`* Wolfgang Denk, DENX Software Engineering, <wd@denx.de>`
			`*/`

			`#include <common.h>`
			`#include <command.h>`
common: Drop init.h from common header Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org> 2020-05-10 11:40:02 -06:00			`#include <init.h>`
MIPS: unify CPU code in arch/mips/cpu/ Unify and move code in arch/mips/cpu/mips[32\|64]/ to arch/mips/cpu/. The CPU specific config.mk files need to remain until CONFIG_STANDALONE_LOAD_ADDR is converted to a global Kconfig symbol. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> 2015-01-29 14:56:20 +01:00			`#include <linux/compiler.h>`
MIPS: Probe cache line sizes once during boot Rather than probing the cache line sizes on every call of any cache maintenance function, probe them once during boot & store the values in the global data structure for later use. This will reduce the overhead of the cache maintenance functions, which isn't a big deal yet but becomes more important once L2 caches which may expose their properties via coprocessor 2 or the CM are supported. Signed-off-by: Paul Burton <paul.burton@imgtec.com> 2016-09-21 11:18:48 +01:00			`#include <asm/cache.h>`
MIPS: add board qemu-mips64 support Both big-endian and little-endian are tested with below commands: Rom version: (Default, Now we config it as rom version) qemu-system-mips64el -M mips -bios u-boot.bin -cpu MIPS64R2-generic -nographic qemu-system-mips64 -M mips -bios u-boot.bin -cpu MIPS64R2-generic -nographic Ram version: qemu-system-mips64el -M mips -cpu MIPS64R2-generic -kernel u-boot -nographic qemu-system-mips64 -M mips -cpu MIPS64R2-generic -kernel u-boot -nographic Signed-off-by: Zhizhou Zhang <etou.zh@gmail.com> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> 2012-10-16 15:02:08 +02:00			`#include <asm/mipsregs.h>`
			`#include <asm/reboot.h>`

mips: enable _machine_restart for spl The sysreset driver has a config CONFIG_SPL_SYSRESET for the spl stage. Change CONFIG_SYSRESET to CONFIG_IS_ENABLED(SYSRESET) will give spl a chance to use _machine_restart instead of the sysreset driver. Reviewed-by: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Weijie Gao <weijie.gao@mediatek.com> 2020-11-12 16:35:38 +08:00			`#if !CONFIG_IS_ENABLED(SYSRESET)`
MIPS: unify CPU code in arch/mips/cpu/ Unify and move code in arch/mips/cpu/mips[32\|64]/ to arch/mips/cpu/. The CPU specific config.mk files need to remain until CONFIG_STANDALONE_LOAD_ADDR is converted to a global Kconfig symbol. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> 2015-01-29 14:56:20 +01:00			`void __weak _machine_restart(void)`
MIPS: add board qemu-mips64 support Both big-endian and little-endian are tested with below commands: Rom version: (Default, Now we config it as rom version) qemu-system-mips64el -M mips -bios u-boot.bin -cpu MIPS64R2-generic -nographic qemu-system-mips64 -M mips -bios u-boot.bin -cpu MIPS64R2-generic -nographic Ram version: qemu-system-mips64el -M mips -cpu MIPS64R2-generic -kernel u-boot -nographic qemu-system-mips64 -M mips -cpu MIPS64R2-generic -kernel u-boot -nographic Signed-off-by: Zhizhou Zhang <etou.zh@gmail.com> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> 2012-10-16 15:02:08 +02:00			`{`
			`fprintf(stderr, "* reset failed *\n");`

			`while (1)`
			`/* NOP */;`
			`}`

command: Remove the cmd_tbl_t typedef We should not use typedefs in U-Boot. They cannot be used as forward declarations which means that header files must include the full header to access them. Drop the typedef and rename the struct to remove the _s suffix which is now not useful. This requires quite a few header-file additions. Signed-off-by: Simon Glass <sjg@chromium.org> 2020-05-10 11:40:03 -06:00			`int do_reset(struct cmd_tbl cmdtp, int flag, int argc, char const argv[])`
MIPS: add board qemu-mips64 support Both big-endian and little-endian are tested with below commands: Rom version: (Default, Now we config it as rom version) qemu-system-mips64el -M mips -bios u-boot.bin -cpu MIPS64R2-generic -nographic qemu-system-mips64 -M mips -bios u-boot.bin -cpu MIPS64R2-generic -nographic Ram version: qemu-system-mips64el -M mips -cpu MIPS64R2-generic -kernel u-boot -nographic qemu-system-mips64 -M mips -cpu MIPS64R2-generic -kernel u-boot -nographic Signed-off-by: Zhizhou Zhang <etou.zh@gmail.com> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> 2012-10-16 15:02:08 +02:00			`{`
			`_machine_restart();`

			`return 0;`
			`}`
MIPS: allow using generic sysreset drivers Avoid duplicating do_reset definition if SYSRESET is enabled for MIPS Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> 2017-04-25 00:39:15 +02:00			`#endif`
MIPS: add board qemu-mips64 support Both big-endian and little-endian are tested with below commands: Rom version: (Default, Now we config it as rom version) qemu-system-mips64el -M mips -bios u-boot.bin -cpu MIPS64R2-generic -nographic qemu-system-mips64 -M mips -bios u-boot.bin -cpu MIPS64R2-generic -nographic Ram version: qemu-system-mips64el -M mips -cpu MIPS64R2-generic -kernel u-boot -nographic qemu-system-mips64 -M mips -cpu MIPS64R2-generic -kernel u-boot -nographic Signed-off-by: Zhizhou Zhang <etou.zh@gmail.com> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> 2012-10-16 15:02:08 +02:00
MIPS: Probe cache line sizes once during boot Rather than probing the cache line sizes on every call of any cache maintenance function, probe them once during boot & store the values in the global data structure for later use. This will reduce the overhead of the cache maintenance functions, which isn't a big deal yet but becomes more important once L2 caches which may expose their properties via coprocessor 2 or the CM are supported. Signed-off-by: Paul Burton <paul.burton@imgtec.com> 2016-09-21 11:18:48 +01:00			`int arch_cpu_init(void)`
			`{`
			`mips_cache_probe();`
			`return 0;`
			`}`