u-boot/arch/powerpc/include/asm/mp.h

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright 2009-2010 Freescale Semiconductor, Inc.
 */

#ifndef _ASM_MP_H_
#define _ASM_MP_H_

#include <lmb.h>

void setup_mp(void);
void cpu_mp_lmb_reserve(struct lmb *lmb);
u32 determine_mp_bootpg(unsigned int *pagesize);
int is_core_disabled(int nr);

#ifdef CONFIG_E6500
#define thread_to_core(x) (x >> 1)
#else
#define thread_to_core(x) (x)
#endif

#endif
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 21:58:06 +00:00			`/* SPDX-License-Identifier: GPL-2.0+ */`
86xx: Cleanup MP support * Use CONFIG_MP instead of CONFIG_NUM_CPUS to match 85xx * Introduce determine_mp_bootpg() helper. We'll need this to address a bug introduced in v2009.03 with 86xx MP booting. We have to make sure to reserve the region of memory used for the MP bootpg() so other u-boot code doesn't use it. * Added dummy versions of cpu_reset(), cpu_status() & cpu_release() to allow cmd_mp.c to build and work. In the future we should look at implementing all these functions. This could be common w/85xx if we use spin tables on 86xx. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> 2009-04-01 04:02:38 +00:00			`/*`
powerpc/8xxx: Add is_core_disabled to remove disabled cores from dtb If we explicitly disabled a core remove it from the dtb we pass on to the kernel. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> 2010-06-10 03:33:53 +00:00			`* Copyright 2009-2010 Freescale Semiconductor, Inc.`
86xx: Cleanup MP support * Use CONFIG_MP instead of CONFIG_NUM_CPUS to match 85xx * Introduce determine_mp_bootpg() helper. We'll need this to address a bug introduced in v2009.03 with 86xx MP booting. We have to make sure to reserve the region of memory used for the MP bootpg() so other u-boot code doesn't use it. * Added dummy versions of cpu_reset(), cpu_status() & cpu_release() to allow cmd_mp.c to build and work. In the future we should look at implementing all these functions. This could be common w/85xx if we use spin tables on 86xx. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> 2009-04-01 04:02:38 +00:00			`*/`

			`#ifndef _ASM_MP_H_`
			`#define _ASM_MP_H_`

			`#include <lmb.h>`

			`void setup_mp(void);`
			`void cpu_mp_lmb_reserve(struct lmb *lmb);`
powerpc/mpc85xx: software workaround for DDR erratum A-004468 Boot space translation utilizes the pre-translation address to select the DDR controller target. However, the post-translation address will be presented to the selected DDR controller. It is possible that the pre- translation address selects one DDR controller but the post-translation address exists in a different DDR controller when using certain DDR controller interleaving modes. The device may fail to boot under these circumstances. Note that a DDR MSE error will not be detected since DDR controller bounds registers are programmed to be the same when configured for DDR controller interleaving. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com> 2012-10-08 07:44:25 +00:00			`u32 determine_mp_bootpg(unsigned int *pagesize);`
powerpc/8xxx: Add is_core_disabled to remove disabled cores from dtb If we explicitly disabled a core remove it from the dtb we pass on to the kernel. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> 2010-06-10 03:33:53 +00:00			`int is_core_disabled(int nr);`
86xx: Cleanup MP support * Use CONFIG_MP instead of CONFIG_NUM_CPUS to match 85xx * Introduce determine_mp_bootpg() helper. We'll need this to address a bug introduced in v2009.03 with 86xx MP booting. We have to make sure to reserve the region of memory used for the MP bootpg() so other u-boot code doesn't use it. * Added dummy versions of cpu_reset(), cpu_status() & cpu_release() to allow cmd_mp.c to build and work. In the future we should look at implementing all these functions. This could be common w/85xx if we use spin tables on 86xx. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> 2009-04-01 04:02:38 +00:00
powerpc/mpc8xxx: fix core id for multicore booting For the cores with multiple threads, we need to figure out which physical core a thread belongs. To match the core ids, update PIR registers and spin tables. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Andy Fleming <afleming@freescale.com> 2012-08-17 08:20:26 +00:00			`#ifdef CONFIG_E6500`
			`#define thread_to_core(x) (x >> 1)`
			`#else`
			`#define thread_to_core(x) (x)`
			`#endif`

86xx: Cleanup MP support * Use CONFIG_MP instead of CONFIG_NUM_CPUS to match 85xx * Introduce determine_mp_bootpg() helper. We'll need this to address a bug introduced in v2009.03 with 86xx MP booting. We have to make sure to reserve the region of memory used for the MP bootpg() so other u-boot code doesn't use it. * Added dummy versions of cpu_reset(), cpu_status() & cpu_release() to allow cmd_mp.c to build and work. In the future we should look at implementing all these functions. This could be common w/85xx if we use spin tables on 86xx. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> 2009-04-01 04:02:38 +00:00			`#endif`