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)  *  PS3 bootwrapper entry.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *  Copyright (C) 2007 Sony Computer Entertainment Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *  Copyright 2007 Sony Corp.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include "ppc_asm.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	.machine "ppc64"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	.text
^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)  * __system_reset_overlay - The PS3 first stage entry.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)  * The bootwraper build script copies the 512 bytes at symbol
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)  * __system_reset_overlay to offset 0x100 of the rom image.  This symbol
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)  * must occupy 512 or less bytes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  * The PS3 has a single processor with two threads.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	.globl __system_reset_overlay
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) __system_reset_overlay:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	/* Switch to 32-bit mode. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	mfmsr	r9
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	clrldi	r9,r9,1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	mtmsrd	r9
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	nop
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	/* Get thread number in r3 and branch. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	mfspr	r3, 0x88
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	cntlzw.	r3, r3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	beq	1f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	/* Secondary goes to __secondary_hold in kernel. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	li	r4, 0x60
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	mtctr	r4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	bctr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	/* Primary delays then goes to _zimage_start in wrapper. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	or	31, 31, 31 /* db16cyc */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	or	31, 31, 31 /* db16cyc */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	lis	r4, _zimage_start@ha
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	addi	r4, r4, _zimage_start@l
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 	mtctr	r4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	bctr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	. = __system_reset_overlay + 512
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)  * __system_reset_kernel - Place holder for the kernel reset vector.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)  * The bootwrapper build script copies 512 bytes from offset 0x100
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)  * of the rom image to the symbol __system_reset_kernel.  At runtime
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)  * the bootwrapper program copies the 512 bytes at __system_reset_kernel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)  * to ram address 0x100.  This symbol must occupy 512 bytes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 	.globl __system_reset_kernel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) __system_reset_kernel:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 	. = __system_reset_kernel + 512