xref: /openbmc/u-boot/drivers/fpga/altera.c (revision 224f7452)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2003
4  * Steven Scholz, imc Measurement & Control, steven.scholz@imc-berlin.de
5  *
6  * (C) Copyright 2002
7  * Rich Ireland, Enterasys Networks, rireland@enterasys.com.
8  */
9 
10 /*
11  *  Altera FPGA support
12  */
13 #include <common.h>
14 #include <errno.h>
15 #include <ACEX1K.h>
16 #include <stratixII.h>
17 
18 /* Define FPGA_DEBUG to 1 to get debug printf's */
19 #define FPGA_DEBUG	0
20 
21 static const struct altera_fpga {
22 	enum altera_family	family;
23 	const char		*name;
24 	int			(*load)(Altera_desc *, const void *, size_t);
25 	int			(*dump)(Altera_desc *, const void *, size_t);
26 	int			(*info)(Altera_desc *);
27 } altera_fpga[] = {
28 #if defined(CONFIG_FPGA_ACEX1K)
29 	{ Altera_ACEX1K, "ACEX1K", ACEX1K_load, ACEX1K_dump, ACEX1K_info },
30 	{ Altera_CYC2,   "ACEX1K", ACEX1K_load, ACEX1K_dump, ACEX1K_info },
31 #elif defined(CONFIG_FPGA_CYCLON2)
32 	{ Altera_ACEX1K, "CycloneII", CYC2_load, CYC2_dump, CYC2_info },
33 	{ Altera_CYC2,   "CycloneII", CYC2_load, CYC2_dump, CYC2_info },
34 #endif
35 #if defined(CONFIG_FPGA_STRATIX_II)
36 	{ Altera_StratixII, "StratixII", StratixII_load,
37 	  StratixII_dump, StratixII_info },
38 #endif
39 #if defined(CONFIG_FPGA_STRATIX_V)
40 	{ Altera_StratixV, "StratixV", stratixv_load, NULL, NULL },
41 #endif
42 #if defined(CONFIG_FPGA_STRATIX10)
43 	{ Intel_FPGA_Stratix10, "Stratix10", stratix10_load, NULL, NULL },
44 #endif
45 #if defined(CONFIG_FPGA_SOCFPGA)
46 	{ Altera_SoCFPGA, "SoC FPGA", socfpga_load, NULL, NULL },
47 #endif
48 };
49 
50 static int altera_validate(Altera_desc *desc, const char *fn)
51 {
52 	if (!desc) {
53 		printf("%s: NULL descriptor!\n", fn);
54 		return -EINVAL;
55 	}
56 
57 	if ((desc->family < min_altera_type) ||
58 	    (desc->family > max_altera_type)) {
59 		printf("%s: Invalid family type, %d\n", fn, desc->family);
60 		return -EINVAL;
61 	}
62 
63 	if ((desc->iface < min_altera_iface_type) ||
64 	    (desc->iface > max_altera_iface_type)) {
65 		printf("%s: Invalid Interface type, %d\n", fn, desc->iface);
66 		return -EINVAL;
67 	}
68 
69 	if (!desc->size) {
70 		printf("%s: NULL part size\n", fn);
71 		return -EINVAL;
72 	}
73 
74 	return 0;
75 }
76 
77 static const struct altera_fpga *
78 altera_desc_to_fpga(Altera_desc *desc, const char *fn)
79 {
80 	int i;
81 
82 	if (altera_validate(desc, fn)) {
83 		printf("%s: Invalid device descriptor\n", fn);
84 		return NULL;
85 	}
86 
87 	for (i = 0; i < ARRAY_SIZE(altera_fpga); i++) {
88 		if (desc->family == altera_fpga[i].family)
89 			break;
90 	}
91 
92 	if (i == ARRAY_SIZE(altera_fpga)) {
93 		printf("%s: Unsupported family type, %d\n", fn, desc->family);
94 		return NULL;
95 	}
96 
97 	return &altera_fpga[i];
98 }
99 
100 int altera_load(Altera_desc *desc, const void *buf, size_t bsize)
101 {
102 	const struct altera_fpga *fpga = altera_desc_to_fpga(desc, __func__);
103 
104 	if (!fpga)
105 		return FPGA_FAIL;
106 
107 	debug_cond(FPGA_DEBUG, "%s: Launching the %s Loader...\n",
108 		   __func__, fpga->name);
109 	if (fpga->load)
110 		return fpga->load(desc, buf, bsize);
111 	return 0;
112 }
113 
114 int altera_dump(Altera_desc *desc, const void *buf, size_t bsize)
115 {
116 	const struct altera_fpga *fpga = altera_desc_to_fpga(desc, __func__);
117 
118 	if (!fpga)
119 		return FPGA_FAIL;
120 
121 	debug_cond(FPGA_DEBUG, "%s: Launching the %s Reader...\n",
122 		   __func__, fpga->name);
123 	if (fpga->dump)
124 		return fpga->dump(desc, buf, bsize);
125 	return 0;
126 }
127 
128 int altera_info(Altera_desc *desc)
129 {
130 	const struct altera_fpga *fpga = altera_desc_to_fpga(desc, __func__);
131 
132 	if (!fpga)
133 		return FPGA_FAIL;
134 
135 	printf("Family:        \t%s\n", fpga->name);
136 
137 	printf("Interface type:\t");
138 	switch (desc->iface) {
139 	case passive_serial:
140 		printf("Passive Serial (PS)\n");
141 		break;
142 	case passive_parallel_synchronous:
143 		printf("Passive Parallel Synchronous (PPS)\n");
144 		break;
145 	case passive_parallel_asynchronous:
146 		printf("Passive Parallel Asynchronous (PPA)\n");
147 		break;
148 	case passive_serial_asynchronous:
149 		printf("Passive Serial Asynchronous (PSA)\n");
150 		break;
151 	case altera_jtag_mode:		/* Not used */
152 		printf("JTAG Mode\n");
153 		break;
154 	case fast_passive_parallel:
155 		printf("Fast Passive Parallel (FPP)\n");
156 		break;
157 	case fast_passive_parallel_security:
158 		printf("Fast Passive Parallel with Security (FPPS)\n");
159 		break;
160 	case secure_device_manager_mailbox:
161 		puts("Secure Device Manager (SDM) Mailbox\n");
162 		break;
163 		/* Add new interface types here */
164 	default:
165 		printf("Unsupported interface type, %d\n", desc->iface);
166 	}
167 
168 	printf("Device Size:   \t%zd bytes\n"
169 	       "Cookie:        \t0x%x (%d)\n",
170 	       desc->size, desc->cookie, desc->cookie);
171 
172 	if (desc->iface_fns) {
173 		printf("Device Function Table @ 0x%p\n", desc->iface_fns);
174 		if (fpga->info)
175 			fpga->info(desc);
176 	} else {
177 		printf("No Device Function Table.\n");
178 	}
179 
180 	return FPGA_SUCCESS;
181 }
182