3 * Eran Liberty, Extricom , eran.liberty@gmail.com
5 * SPDX-License-Identifier: GPL-2.0+
8 #include <common.h> /* core U-Boot definitions */
11 int StratixII_ps_fpp_load (Altera_desc * desc, void *buf, size_t bsize,
12 int isSerial, int isSecure);
13 int StratixII_ps_fpp_dump (Altera_desc * desc, void *buf, size_t bsize);
15 /****************************************************************/
16 /* Stratix II Generic Implementation */
17 int StratixII_load (Altera_desc * desc, void *buf, size_t bsize)
19 int ret_val = FPGA_FAIL;
21 switch (desc->iface) {
23 ret_val = StratixII_ps_fpp_load (desc, buf, bsize, 1, 0);
25 case fast_passive_parallel:
26 ret_val = StratixII_ps_fpp_load (desc, buf, bsize, 0, 0);
28 case fast_passive_parallel_security:
29 ret_val = StratixII_ps_fpp_load (desc, buf, bsize, 0, 1);
32 /* Add new interface types here */
34 printf ("%s: Unsupported interface type, %d\n", __FUNCTION__,
40 int StratixII_dump (Altera_desc * desc, void *buf, size_t bsize)
42 int ret_val = FPGA_FAIL;
44 switch (desc->iface) {
46 case fast_passive_parallel:
47 case fast_passive_parallel_security:
48 ret_val = StratixII_ps_fpp_dump (desc, buf, bsize);
50 /* Add new interface types here */
52 printf ("%s: Unsupported interface type, %d\n", __FUNCTION__,
58 int StratixII_info (Altera_desc * desc)
63 int StratixII_ps_fpp_dump (Altera_desc * desc, void *buf, size_t bsize)
65 printf ("Stratix II Fast Passive Parallel dump is not implemented\n");
69 int StratixII_ps_fpp_load (Altera_desc * desc, void *buf, size_t bsize,
70 int isSerial, int isSecure)
72 altera_board_specific_func *fns;
74 int ret_val = FPGA_FAIL;
80 printf ("%s(%d) Altera_desc missing\n", __FUNCTION__, __LINE__);
84 printf ("%s(%d) buffer is missing\n", __FUNCTION__, __LINE__);
88 printf ("%s(%d) size is zero\n", __FUNCTION__, __LINE__);
91 if (!desc->iface_fns) {
93 ("%s(%d) Altera_desc function interface table is missing\n",
94 __FUNCTION__, __LINE__);
97 fns = (altera_board_specific_func *) (desc->iface_fns);
98 cookie = desc->cookie;
101 (fns->config && fns->status && fns->done && fns->data
104 ("%s(%d) Missing some function in the function interface table\n",
105 __FUNCTION__, __LINE__);
109 /* 1. give board specific a chance to do anything before we start */
111 if ((ret_val = fns->pre (cookie)) < 0) {
116 /* from this point on we must fail gracfully by calling lower layer abort */
118 /* 2. Strat burn cycle by deasserting config for t_CFG and waiting t_CF2CK after reaserted */
119 fns->config (0, 1, cookie);
120 udelay (5); /* nCONFIG low pulse width 2usec */
121 fns->config (1, 1, cookie);
122 udelay (100); /* nCONFIG high to first rising edge on DCLK */
124 /* 3. Start the Data cycle with clk deasserted */
126 fns->clk (0, 1, cookie);
128 printf ("loading to fpga ");
129 while (bytecount < bsize) {
130 /* 3.1 check stratix has not signaled us an error */
131 if (fns->status (cookie) != 1) {
133 ("\n%s(%d) Stratix failed (byte transferred till failure 0x%x)\n",
134 __FUNCTION__, __LINE__, bytecount);
140 uint8_t data = buff[bytecount++];
141 for (i = 0; i < 8; i++) {
142 /* 3.2(ps) put data on the bus */
143 fns->data ((data >> i) & 1, 1, cookie);
145 /* 3.3(ps) clock once */
146 fns->clk (1, 1, cookie);
147 fns->clk (0, 1, cookie);
150 /* 3.2(fpp) put data on the bus */
151 fns->data (buff[bytecount++], 1, cookie);
153 /* 3.3(fpp) clock once */
154 fns->clk (1, 1, cookie);
155 fns->clk (0, 1, cookie);
157 /* 3.4(fpp) for secure cycle push 3 more clocks */
158 for (i = 0; isSecure && i < 3; i++) {
159 fns->clk (1, 1, cookie);
160 fns->clk (0, 1, cookie);
164 /* 3.5 while clk is deasserted it is safe to print some progress indication */
165 if ((bytecount % (bsize / 100)) == 0) {
166 printf ("\b\b\b%02d\%", bytecount * 100 / bsize);
170 /* 4. Set one last clock and check conf done signal */
171 fns->clk (1, 1, cookie);
173 if (!fns->done (cookie)) {
174 printf (" error!.\n");
178 printf ("\b\b\b done.\n");
181 /* 5. call lower layer post configuration */
183 if ((ret_val = fns->post (cookie)) < 0) {