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)  *  linux/arch/arm/lib/ecard.S
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *  Copyright (C) 1995, 1996 Russell King
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * 27/03/03 Ian Molton Clean up CONFIG_CPU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <linux/linkage.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <asm/assembler.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #define CPSR2SPSR(rt) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 		mrs	rt, cpsr; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 		msr	spsr_cxsf, rt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) @ Purpose: call an expansion card loader to read bytes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) @ Proto  : char read_loader(int offset, char *card_base, char *loader);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) @ Returns: byte read
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) ENTRY(ecard_loader_read)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 		stmfd	sp!, {r4 - r12, lr}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		mov	r11, r1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 		mov	r1, r0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 		CPSR2SPSR(r0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		mov	lr, pc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 		mov	pc, r2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		ldmfd	sp!, {r4 - r12, pc}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) @ Purpose: call an expansion card loader to reset the card
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) @ Proto  : void read_loader(int card_base, char *loader);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) @ Returns: byte read
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) ENTRY(ecard_loader_reset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 		stmfd	sp!, {r4 - r12, lr}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 		mov	r11, r0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 		CPSR2SPSR(r0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 		mov	lr, pc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 		add	pc, r1, #8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 		ldmfd	sp!, {r4 - r12, pc}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)