xref: /openbmc/u-boot/drivers/fpga/altera.c (revision 85231c08)
1 /*
2  * (C) Copyright 2003
3  * Steven Scholz, imc Measurement & Control, steven.scholz@imc-berlin.de
4  *
5  * (C) Copyright 2002
6  * Rich Ireland, Enterasys Networks, rireland@enterasys.com.
7  *
8  * SPDX-License-Identifier:	GPL-2.0+
9  */
10 
11 /*
12  *  Altera FPGA support
13  */
14 #include <common.h>
15 #include <errno.h>
16 #include <ACEX1K.h>
17 #include <stratixII.h>
18 
19 /* Define FPGA_DEBUG to 1 to get debug printf's */
20 #define FPGA_DEBUG	0
21 
22 static const struct altera_fpga {
23 	enum altera_family	family;
24 	const char		*name;
25 	int			(*load)(Altera_desc *, const void *, size_t);
26 	int			(*dump)(Altera_desc *, const void *, size_t);
27 	int			(*info)(Altera_desc *);
28 } altera_fpga[] = {
29 #if defined(CONFIG_FPGA_ACEX1K)
30 	{ Altera_ACEX1K, "ACEX1K", ACEX1K_load, ACEX1K_dump, ACEX1K_info },
31 	{ Altera_CYC2,   "ACEX1K", ACEX1K_load, ACEX1K_dump, ACEX1K_info },
32 #elif defined(CONFIG_FPGA_CYCLON2)
33 	{ Altera_ACEX1K, "CycloneII", CYC2_load, CYC2_dump, CYC2_info },
34 	{ Altera_CYC2,   "CycloneII", CYC2_load, CYC2_dump, CYC2_info },
35 #endif
36 #if defined(CONFIG_FPGA_STRATIX_II)
37 	{ Altera_StratixII, "StratixII", StratixII_load,
38 	  StratixII_dump, StratixII_info },
39 #endif
40 #if defined(CONFIG_FPGA_STRATIX_V)
41 	{ Altera_StratixV, "StratixV", stratixv_load, NULL, NULL },
42 #endif
43 #if defined(CONFIG_FPGA_SOCFPGA)
44 	{ Altera_SoCFPGA, "SoC FPGA", socfpga_load, NULL, NULL },
45 #endif
46 };
47 
48 static int altera_validate(Altera_desc *desc, const char *fn)
49 {
50 	if (!desc) {
51 		printf("%s: NULL descriptor!\n", fn);
52 		return -EINVAL;
53 	}
54 
55 	if ((desc->family < min_altera_type) ||
56 	    (desc->family > max_altera_type)) {
57 		printf("%s: Invalid family type, %d\n", fn, desc->family);
58 		return -EINVAL;
59 	}
60 
61 	if ((desc->iface < min_altera_iface_type) ||
62 	    (desc->iface > max_altera_iface_type)) {
63 		printf("%s: Invalid Interface type, %d\n", fn, desc->iface);
64 		return -EINVAL;
65 	}
66 
67 	if (!desc->size) {
68 		printf("%s: NULL part size\n", fn);
69 		return -EINVAL;
70 	}
71 
72 	return 0;
73 }
74 
75 static const struct altera_fpga *
76 altera_desc_to_fpga(Altera_desc *desc, const char *fn)
77 {
78 	int i;
79 
80 	if (altera_validate(desc, fn)) {
81 		printf("%s: Invalid device descriptor\n", fn);
82 		return NULL;
83 	}
84 
85 	for (i = 0; i < ARRAY_SIZE(altera_fpga); i++) {
86 		if (desc->family == altera_fpga[i].family)
87 			break;
88 	}
89 
90 	if (i == ARRAY_SIZE(altera_fpga)) {
91 		printf("%s: Unsupported family type, %d\n", fn, desc->family);
92 		return NULL;
93 	}
94 
95 	return &altera_fpga[i];
96 }
97 
98 int altera_load(Altera_desc *desc, const void *buf, size_t bsize)
99 {
100 	const struct altera_fpga *fpga = altera_desc_to_fpga(desc, __func__);
101 
102 	if (!fpga)
103 		return FPGA_FAIL;
104 
105 	debug_cond(FPGA_DEBUG, "%s: Launching the %s Loader...\n",
106 		   __func__, fpga->name);
107 	if (fpga->load)
108 		return fpga->load(desc, buf, bsize);
109 	return 0;
110 }
111 
112 int altera_dump(Altera_desc *desc, const void *buf, size_t bsize)
113 {
114 	const struct altera_fpga *fpga = altera_desc_to_fpga(desc, __func__);
115 
116 	if (!fpga)
117 		return FPGA_FAIL;
118 
119 	debug_cond(FPGA_DEBUG, "%s: Launching the %s Reader...\n",
120 		   __func__, fpga->name);
121 	if (fpga->dump)
122 		return fpga->dump(desc, buf, bsize);
123 	return 0;
124 }
125 
126 int altera_info(Altera_desc *desc)
127 {
128 	const struct altera_fpga *fpga = altera_desc_to_fpga(desc, __func__);
129 
130 	if (!fpga)
131 		return FPGA_FAIL;
132 
133 	printf("Family:        \t%s\n", fpga->name);
134 
135 	printf("Interface type:\t");
136 	switch (desc->iface) {
137 	case passive_serial:
138 		printf("Passive Serial (PS)\n");
139 		break;
140 	case passive_parallel_synchronous:
141 		printf("Passive Parallel Synchronous (PPS)\n");
142 		break;
143 	case passive_parallel_asynchronous:
144 		printf("Passive Parallel Asynchronous (PPA)\n");
145 		break;
146 	case passive_serial_asynchronous:
147 		printf("Passive Serial Asynchronous (PSA)\n");
148 		break;
149 	case altera_jtag_mode:		/* Not used */
150 		printf("JTAG Mode\n");
151 		break;
152 	case fast_passive_parallel:
153 		printf("Fast Passive Parallel (FPP)\n");
154 		break;
155 	case fast_passive_parallel_security:
156 		printf("Fast Passive Parallel with Security (FPPS)\n");
157 		break;
158 		/* Add new interface types here */
159 	default:
160 		printf("Unsupported interface type, %d\n", desc->iface);
161 	}
162 
163 	printf("Device Size:   \t%zd bytes\n"
164 	       "Cookie:        \t0x%x (%d)\n",
165 	       desc->size, desc->cookie, desc->cookie);
166 
167 	if (desc->iface_fns) {
168 		printf("Device Function Table @ 0x%p\n", desc->iface_fns);
169 		if (fpga->info)
170 			fpga->info(desc);
171 	} else {
172 		printf("No Device Function Table.\n");
173 	}
174 
175 	return FPGA_SUCCESS;
176 }
177