xref: /openbmc/u-boot/drivers/fpga/altera.c (revision f91281b1)
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_SOCFPGA)
41 	{ Altera_SoCFPGA, "SoC FPGA", socfpga_load, NULL, NULL },
42 #endif
43 };
44 
45 static int altera_validate(Altera_desc *desc, const char *fn)
46 {
47 	if (!desc) {
48 		printf("%s: NULL descriptor!\n", fn);
49 		return -EINVAL;
50 	}
51 
52 	if ((desc->family < min_altera_type) ||
53 	    (desc->family > max_altera_type)) {
54 		printf("%s: Invalid family type, %d\n", fn, desc->family);
55 		return -EINVAL;
56 	}
57 
58 	if ((desc->iface < min_altera_iface_type) ||
59 	    (desc->iface > max_altera_iface_type)) {
60 		printf("%s: Invalid Interface type, %d\n", fn, desc->iface);
61 		return -EINVAL;
62 	}
63 
64 	if (!desc->size) {
65 		printf("%s: NULL part size\n", fn);
66 		return -EINVAL;
67 	}
68 
69 	return 0;
70 }
71 
72 static const struct altera_fpga *
73 altera_desc_to_fpga(Altera_desc *desc, const char *fn)
74 {
75 	int i;
76 
77 	if (altera_validate(desc, fn)) {
78 		printf("%s: Invalid device descriptor\n", fn);
79 		return NULL;
80 	}
81 
82 	for (i = 0; i < ARRAY_SIZE(altera_fpga); i++) {
83 		if (desc->family == altera_fpga[i].family)
84 			break;
85 	}
86 
87 	if (i == ARRAY_SIZE(altera_fpga)) {
88 		printf("%s: Unsupported family type, %d\n", fn, desc->family);
89 		return NULL;
90 	}
91 
92 	return &altera_fpga[i];
93 }
94 
95 int altera_load(Altera_desc *desc, const void *buf, size_t bsize)
96 {
97 	const struct altera_fpga *fpga = altera_desc_to_fpga(desc, __func__);
98 
99 	if (!fpga)
100 		return FPGA_FAIL;
101 
102 	debug_cond(FPGA_DEBUG, "%s: Launching the %s Loader...\n",
103 		   __func__, fpga->name);
104 	if (fpga->load)
105 		return fpga->load(desc, buf, bsize);
106 	return 0;
107 }
108 
109 int altera_dump(Altera_desc *desc, const void *buf, size_t bsize)
110 {
111 	const struct altera_fpga *fpga = altera_desc_to_fpga(desc, __func__);
112 
113 	if (!fpga)
114 		return FPGA_FAIL;
115 
116 	debug_cond(FPGA_DEBUG, "%s: Launching the %s Reader...\n",
117 		   __func__, fpga->name);
118 	if (fpga->dump)
119 		return fpga->dump(desc, buf, bsize);
120 	return 0;
121 }
122 
123 int altera_info(Altera_desc *desc)
124 {
125 	const struct altera_fpga *fpga = altera_desc_to_fpga(desc, __func__);
126 
127 	if (!fpga)
128 		return FPGA_FAIL;
129 
130 	printf("Family:        \t%s\n", fpga->name);
131 
132 	printf("Interface type:\t");
133 	switch (desc->iface) {
134 	case passive_serial:
135 		printf("Passive Serial (PS)\n");
136 		break;
137 	case passive_parallel_synchronous:
138 		printf("Passive Parallel Synchronous (PPS)\n");
139 		break;
140 	case passive_parallel_asynchronous:
141 		printf("Passive Parallel Asynchronous (PPA)\n");
142 		break;
143 	case passive_serial_asynchronous:
144 		printf("Passive Serial Asynchronous (PSA)\n");
145 		break;
146 	case altera_jtag_mode:		/* Not used */
147 		printf("JTAG Mode\n");
148 		break;
149 	case fast_passive_parallel:
150 		printf("Fast Passive Parallel (FPP)\n");
151 		break;
152 	case fast_passive_parallel_security:
153 		printf("Fast Passive Parallel with Security (FPPS)\n");
154 		break;
155 		/* Add new interface types here */
156 	default:
157 		printf("Unsupported interface type, %d\n", desc->iface);
158 	}
159 
160 	printf("Device Size:   \t%zd bytes\n"
161 	       "Cookie:        \t0x%x (%d)\n",
162 	       desc->size, desc->cookie, desc->cookie);
163 
164 	if (desc->iface_fns) {
165 		printf("Device Function Table @ 0x%p\n", desc->iface_fns);
166 		if (fpga->info)
167 			fpga->info(desc);
168 	} else {
169 		printf("No Device Function Table.\n");
170 	}
171 
172 	return FPGA_SUCCESS;
173 }
174