mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-05 20:54:31 +00:00
e2c18e40b1
Spin-table method is used for secondary cores to load 32-bit OS. The architecture information will be got through checking FIT image and saved in the os_arch element of spin-table, then the secondary cores will check os_arch and jump to 32-bit OS or 64-bit OS automatically. Signed-off-by: Alison Wang <alison.wang@nxp.com> Signed-off-by: Chenhui Zhao <chenhui.zhao@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
/*
|
|
* Copyright 2014-2015, Freescale Semiconductor
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#ifndef _FSL_LAYERSCAPE_MP_H
|
|
#define _FSL_LAYERSCAPE_MP_H
|
|
|
|
/*
|
|
* Each spin table element is defined as
|
|
* struct {
|
|
* uint64_t entry_addr;
|
|
* uint64_t status;
|
|
* uint64_t lpid;
|
|
* uint64_t os_arch;
|
|
* };
|
|
* we pad this struct to 64 bytes so each entry is in its own cacheline
|
|
* the actual spin table is an array of these structures
|
|
*/
|
|
#define SPIN_TABLE_ELEM_ENTRY_ADDR_IDX 0
|
|
#define SPIN_TABLE_ELEM_STATUS_IDX 1
|
|
#define SPIN_TABLE_ELEM_LPID_IDX 2
|
|
#define SPIN_TABLE_ELEM_OS_ARCH_IDX 3
|
|
#define WORDS_PER_SPIN_TABLE_ENTRY 8 /* pad to 64 bytes */
|
|
#define SPIN_TABLE_ELEM_SIZE 64
|
|
|
|
#define id_to_core(x) ((x & 3) | (x >> 6))
|
|
#ifndef __ASSEMBLY__
|
|
extern u64 __spin_table[];
|
|
extern u64 __real_cntfrq;
|
|
extern u64 *secondary_boot_code;
|
|
extern size_t __secondary_boot_code_size;
|
|
int fsl_layerscape_wake_seconday_cores(void);
|
|
void *get_spin_tbl_addr(void);
|
|
phys_addr_t determine_mp_bootpg(void);
|
|
void secondary_boot_func(void);
|
|
int is_core_online(u64 cpu_id);
|
|
u32 cpu_pos_mask(void);
|
|
#endif
|
|
|
|
#define IH_ARCH_ARM 2 /* ARM */
|
|
#define IH_ARCH_ARM64 22 /* ARM64 */
|
|
|
|
#endif /* _FSL_LAYERSCAPE_MP_H */
|