--- /dev/null
+/*
+ * (C) Copyright 2007
+ * Eran Liberty, Extricom , eran.liberty@gmail.com
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h> /* core U-Boot definitions */
+#include <altera.h>
+
+int StratixII_ps_fpp_load (Altera_desc * desc, void *buf, size_t bsize,
+ int isSerial, int isSecure);
+int StratixII_ps_fpp_dump (Altera_desc * desc, void *buf, size_t bsize);
+
+/****************************************************************/
+/* Stratix II Generic Implementation */
+int StratixII_load (Altera_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL;
+
+ switch (desc->iface) {
+ case passive_serial:
+ ret_val = StratixII_ps_fpp_load (desc, buf, bsize, 1, 0);
+ break;
+ case fast_passive_parallel:
+ ret_val = StratixII_ps_fpp_load (desc, buf, bsize, 0, 0);
+ break;
+ case fast_passive_parallel_security:
+ ret_val = StratixII_ps_fpp_load (desc, buf, bsize, 0, 1);
+ break;
+
+ /* Add new interface types here */
+ default:
+ printf ("%s: Unsupported interface type, %d\n", __FUNCTION__,
+ desc->iface);
+ }
+ return ret_val;
+}
+
+int StratixII_dump (Altera_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL;
+
+ switch (desc->iface) {
+ case passive_serial:
+ case fast_passive_parallel:
+ case fast_passive_parallel_security:
+ ret_val = StratixII_ps_fpp_dump (desc, buf, bsize);
+ break;
+ /* Add new interface types here */
+ default:
+ printf ("%s: Unsupported interface type, %d\n", __FUNCTION__,
+ desc->iface);
+ }
+ return ret_val;
+}
+
+int StratixII_info (Altera_desc * desc)
+{
+ return FPGA_SUCCESS;
+}
+
+int StratixII_ps_fpp_dump (Altera_desc * desc, void *buf, size_t bsize)
+{
+ printf ("Stratix II Fast Passive Parallel dump is not implemented\n");
+ return FPGA_FAIL;
+}
+
+int StratixII_ps_fpp_load (Altera_desc * desc, void *buf, size_t bsize,
+ int isSerial, int isSecure)
+{
+ altera_board_specific_func *fns;
+ int cookie;
+ int ret_val = FPGA_FAIL;
+ int bytecount;
+ char *buff = buf;
+ int i;
+
+ if (!desc) {
+ printf ("%s(%d) Altera_desc missing\n", __FUNCTION__, __LINE__);
+ return FPGA_FAIL;
+ }
+ if (!buff) {
+ printf ("%s(%d) buffer is missing\n", __FUNCTION__, __LINE__);
+ return FPGA_FAIL;
+ }
+ if (!bsize) {
+ printf ("%s(%d) size is zero\n", __FUNCTION__, __LINE__);
+ return FPGA_FAIL;
+ }
+ if (!desc->iface_fns) {
+ printf
+ ("%s(%d) Altera_desc function interface table is missing\n",
+ __FUNCTION__, __LINE__);
+ return FPGA_FAIL;
+ }
+ fns = (altera_board_specific_func *) (desc->iface_fns);
+ cookie = desc->cookie;
+
+ if (!
+ (fns->config && fns->status && fns->done && fns->data
+ && fns->abort)) {
+ printf
+ ("%s(%d) Missing some function in the function interface table\n",
+ __FUNCTION__, __LINE__);
+ return FPGA_FAIL;
+ }
+
+ /* 1. give board specific a chance to do anything before we start */
+ if (fns->pre) {
+ if ((ret_val = fns->pre (cookie)) < 0) {
+ return ret_val;
+ }
+ }
+
+ /* from this point on we must fail gracfully by calling lower layer abort */
+
+ /* 2. Strat burn cycle by deasserting config for t_CFG and waiting t_CF2CK after reaserted */
+ fns->config (0, 1, cookie);
+ udelay (5); /* nCONFIG low pulse width 2usec */
+ fns->config (1, 1, cookie);
+ udelay (100); /* nCONFIG high to first rising edge on DCLK */
+
+ /* 3. Start the Data cycle with clk deasserted */
+ bytecount = 0;
+ fns->clk (0, 1, cookie);
+
+ printf ("loading to fpga ");
+ while (bytecount < bsize) {
+ /* 3.1 check stratix has not signaled us an error */
+ if (fns->status (cookie) != 1) {
+ printf
+ ("\n%s(%d) Stratix failed (byte transfered till failure 0x%x)\n",
+ __FUNCTION__, __LINE__, bytecount);
+ fns->abort (cookie);
+ return FPGA_FAIL;
+ }
+ if (isSerial) {
+ int i;
+ uint8_t data = buff[bytecount++];
+ for (i = 0; i < 8; i++) {
+ /* 3.2(ps) put data on the bus */
+ fns->data ((data >> i) & 1, 1, cookie);
+
+ /* 3.3(ps) clock once */
+ fns->clk (1, 1, cookie);
+ fns->clk (0, 1, cookie);
+ }
+ } else {
+ /* 3.2(fpp) put data on the bus */
+ fns->data (buff[bytecount++], 1, cookie);
+
+ /* 3.3(fpp) clock once */
+ fns->clk (1, 1, cookie);
+ fns->clk (0, 1, cookie);
+
+ /* 3.4(fpp) for secure cycle push 3 more clocks */
+ for (i = 0; isSecure && i < 3; i++) {
+ fns->clk (1, 1, cookie);
+ fns->clk (0, 1, cookie);
+ }
+ }
+
+ /* 3.5 while clk is deasserted it is safe to print some progress indication */
+ if ((bytecount % (bsize / 100)) == 0) {
+ printf ("\b\b\b%02d\%", bytecount * 100 / bsize);
+ }
+ }
+
+ /* 4. Set one last clock and check conf done signal */
+ fns->clk (1, 1, cookie);
+ udelay (100);
+ if (!fns->done (cookie)) {
+ printf (" error!.\n");
+ fns->abort (cookie);
+ return FPGA_FAIL;
+ } else {
+ printf ("\b\b\b done.\n");
+ }
+
+ /* 5. call lower layer post configuration */
+ if (fns->post) {
+ if ((ret_val = fns->post (cookie)) < 0) {
+ fns->abort (cookie);
+ return ret_val;
+ }
+ }
+
+ return FPGA_SUCCESS;
+}
Code Review / kvmfornfv.git / blobdiff