1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright (C) 2015 Atmel Corporation
4 *		      Wenyou Yang <wenyou.yang@atmel.com>
5 */
6
7#include <common.h>
8#include <asm/hardware.h>
9#include <asm/io.h>
10#include <asm/arch/at91_sfr.h>
11
12#if defined(CONFIG_SAMA5D2) || defined(CONFIG_SAMA5D4)
13void redirect_int_from_saic_to_aic(void)
14{
15	struct atmel_sfr *sfr = (struct atmel_sfr *)ATMEL_BASE_SFR;
16	u32 key32;
17
18	if (!(readl(&sfr->aicredir) & ATMEL_SFR_AICREDIR_NSAIC)) {
19		key32 = readl(&sfr->sn1) ^ ATMEL_SFR_AICREDIR_KEY;
20		writel((key32 | ATMEL_SFR_AICREDIR_NSAIC), &sfr->aicredir);
21	}
22}
23
24void configure_2nd_sram_as_l2_cache(void)
25{
26	struct atmel_sfr *sfr = (struct atmel_sfr *)ATMEL_BASE_SFR;
27
28	writel(1, &sfr->l2cc_hramc);
29}
30#endif
31
32void configure_ddrcfg_input_buffers(bool open)
33{
34	struct atmel_sfr *sfr = (struct atmel_sfr *)ATMEL_BASE_SFR;
35
36	if (open)
37		writel(ATMEL_SFR_DDRCFG_FDQIEN | ATMEL_SFR_DDRCFG_FDQSIEN,
38		       &sfr->ddrcfg);
39	else
40		writel(0, &sfr->ddrcfg);
41}
42