xref: /openbmc/u-boot/arch/arm/mach-at91/matrix.c (revision e8f80a5a)
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/sama5_matrix.h>
11 
matrix_init(void)12 void matrix_init(void)
13 {
14 	struct atmel_matrix *h64mx = (struct atmel_matrix *)ATMEL_BASE_MATRIX0;
15 	struct atmel_matrix *h32mx = (struct atmel_matrix *)ATMEL_BASE_MATRIX1;
16 	int i;
17 
18 	/* DDR port 1 ~ port 7 */
19 	for (i = H64MX_SLAVE_DDRC_PORT1; i <= H64MX_SLAVE_DDRC_PORT7; i++) {
20 		writel(0x000f0f0f, &h64mx->ssr[i]);
21 		writel(0x0000ffff, &h64mx->sassr[i]);
22 		writel(0x0000000f, &h64mx->srtsr[i]);
23 	}
24 
25 	/* EBI CS3 (NANDFlash 128M) and NFC Command Registers(128M) */
26 	writel(0x00c0c0c0, &h32mx->ssr[H32MX_SLAVE_EBI]);
27 	writel(0xff000000, &h32mx->sassr[H32MX_SLAVE_EBI]);
28 	writel(0xff000000, &h32mx->srtsr[H32MX_SLAVE_EBI]);
29 
30 	/* NFC SRAM */
31 	writel(0x00010101, &h32mx->ssr[H32MX_SLAVE_NFC_SRAM]);
32 	writel(0x00000001, &h32mx->sassr[H32MX_SLAVE_NFC_SRAM]);
33 	writel(0x00000001, &h32mx->srtsr[H32MX_SLAVE_NFC_SRAM]);
34 }
35