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)
redirect_int_from_saic_to_aic(void)13 void 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 
configure_2nd_sram_as_l2_cache(void)24 void 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 
configure_ddrcfg_input_buffers(bool open)32 void 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 
43