arm: at91/spl: atmel_sfr: move saic redirect to separate file
[oweals/u-boot.git] / arch / arm / mach-at91 / atmel_sfr.c
1 /*
2  * Copyright (C) 2015 Atmel Corporation
3  *                    Wenyou Yang <wenyou.yang@atmel.com>
4  *
5  * SPDX-License-Identifier:     GPL-2.0+
6  */
7
8 #include <common.h>
9 #include <asm/io.h>
10 #include <asm/arch/sama5_sfr.h>
11
12 void redirect_int_from_saic_to_aic(void)
13 {
14         struct atmel_sfr *sfr = (struct atmel_sfr *)ATMEL_BASE_SFR;
15         u32 key32;
16
17         if (!(readl(&sfr->aicredir) & ATMEL_SFR_AICREDIR_NSAIC)) {
18                 key32 = readl(&sfr->sn1) ^ ATMEL_SFR_AICREDIR_KEY;
19                 writel((key32 | ATMEL_SFR_AICREDIR_NSAIC), &sfr->aicredir);
20         }
21 }