Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * arch/arm/mach-spear13XX/headsmp.S
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Picked from realview
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * Copyright (c) 2012 ST Microelectronics Limited
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * Shiraz Hashim <shiraz.linux.kernel@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/linkage.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	__INIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  * spear13xx specific entry point for secondary CPUs. This provides
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  * a "holding pen" into which all secondary cores are held until we're
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)  * ready for them to initialise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) ENTRY(spear13xx_secondary_startup)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	mrc	p15, 0, r0, c0, c0, 5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	and	r0, r0, #15
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	adr	r4, 1f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	ldmia	r4, {r5, r6}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	sub	r4, r4, r5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	add	r6, r6, r4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) pen:	ldr	r7, [r6]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	cmp	r7, r0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	bne	pen
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	/* re-enable coherency */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	mrc	p15, 0, r0, c1, c0, 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	orr	r0, r0, #(1 << 6) | (1 << 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	mcr	p15, 0, r0, c1, c0, 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	 * we've been released from the holding pen: secondary_stack
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	 * should now contain the SVC stack for this core
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	b	secondary_startup
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	.align
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 1:	.long	.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	.long	spear_pen_release
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) ENDPROC(spear13xx_secondary_startup)