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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- /*
- * Copyright 2011 Freescale Semiconductor, Inc.
- * Copyright 2011 Linaro Ltd.
- */
- #include <linux/linkage.h>
- #include <linux/init.h>
- #include <asm/assembler.h>
- .arch armv7-a
- diag_reg_offset:
- .word g_diag_reg - .
- .macro set_diag_reg
- adr r0, diag_reg_offset
- ldr r1, [r0]
- add r1, r1, r0 @ r1 = physical &g_diag_reg
- ldr r0, [r1]
- mcr p15, 0, r0, c15, c0, 1 @ write diagnostic register
- .endm
- ENTRY(v7_secondary_startup)
- ARM_BE8(setend be) @ go BE8 if entered LE
- mrc p15, 0, r0, c0, c0, 0
- lsl r0, r0, #16
- lsr r0, r0, #20
- /* 0xc07 is cortex A7's ID */
- mov r1, #0xc00
- orr r1, #0x7
- cmp r0, r1
- beq secondary_startup
- set_diag_reg
- b secondary_startup
- ENDPROC(v7_secondary_startup)
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