1 /*
2  * Copyright (C) 2014 Atmel
3  *		      Bo Shen <voice.shen@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/at91_common.h>
11 #include <asm/arch/at91_pmc.h>
12 #include <asm/arch/clk.h>
13 #include <asm/arch/sama5_matrix.h>
14 #include <asm/arch/sama5_sfr.h>
15 #include <asm/arch/sama5d4.h>
16 
17 char *get_cpu_name()
18 {
19 	unsigned int extension_id = get_extension_chip_id();
20 
21 	if (cpu_is_sama5d4())
22 		switch (extension_id) {
23 		case ARCH_EXID_SAMA5D41:
24 			return "SAMA5D41";
25 		case ARCH_EXID_SAMA5D42:
26 			return "SAMA5D42";
27 		case ARCH_EXID_SAMA5D43:
28 			return "SAMA5D43";
29 		case ARCH_EXID_SAMA5D44:
30 			return "SAMA5D44";
31 		default:
32 			return "Unknown CPU type";
33 		}
34 	else
35 		return "Unknown CPU type";
36 }
37 
38 #ifdef CONFIG_USB_GADGET_ATMEL_USBA
39 void at91_udp_hw_init(void)
40 {
41 	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
42 
43 	/* Enable UPLL clock */
44 	writel(AT91_PMC_UPLLEN | AT91_PMC_BIASEN, &pmc->uckr);
45 	/* Enable UDPHS clock */
46 	at91_periph_clk_enable(ATMEL_ID_UDPHS);
47 }
48 #endif
49 
50 #ifdef CONFIG_SPL_BUILD
51 void matrix_init(void)
52 {
53 	struct atmel_matrix *h64mx = (struct atmel_matrix *)ATMEL_BASE_MATRIX0;
54 	struct atmel_matrix *h32mx = (struct atmel_matrix *)ATMEL_BASE_MATRIX1;
55 	int i;
56 
57 	/* Disable the write protect */
58 	writel(ATMEL_MATRIX_WPMR_WPKEY & ~ATMEL_MATRIX_WPMR_WPEN, &h64mx->wpmr);
59 	writel(ATMEL_MATRIX_WPMR_WPKEY & ~ATMEL_MATRIX_WPMR_WPEN, &h32mx->wpmr);
60 
61 	/* DDR port 1 ~ poart 7, slave number is: 4 ~ 10 */
62 	for (i = 4; i <= 10; i++) {
63 		writel(0x000f0f0f, &h64mx->ssr[i]);
64 		writel(0x0000ffff, &h64mx->sassr[i]);
65 		writel(0x0000000f, &h64mx->srtsr[i]);
66 	}
67 
68 	/* CS3 */
69 	writel(0x00c0c0c0, &h32mx->ssr[3]);
70 	writel(0xff000000, &h32mx->sassr[3]);
71 	writel(0xff000000, &h32mx->srtsr[3]);
72 
73 	/* NFC SRAM */
74 	writel(0x00010101, &h32mx->ssr[4]);
75 	writel(0x00000001, &h32mx->sassr[4]);
76 	writel(0x00000001, &h32mx->srtsr[4]);
77 
78 	/* Enable the write protect */
79 	writel(ATMEL_MATRIX_WPMR_WPKEY | ATMEL_MATRIX_WPMR_WPEN, &h64mx->wpmr);
80 	writel(ATMEL_MATRIX_WPMR_WPKEY | ATMEL_MATRIX_WPMR_WPEN, &h32mx->wpmr);
81 }
82 
83 void redirect_int_from_saic_to_aic(void)
84 {
85 	struct atmel_sfr *sfr = (struct atmel_sfr *)ATMEL_BASE_SFR;
86 	u32 key32;
87 
88 	if (!(readl(&sfr->aicredir) & ATMEL_SFR_AICREDIR_NSAIC)) {
89 		key32 = readl(&sfr->sn1) ^ ATMEL_SFR_AICREDIR_KEY;
90 		writel((key32 | ATMEL_SFR_AICREDIR_NSAIC), &sfr->aicredir);
91 	}
92 }
93 #endif
94