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-rw-r--r--u-boot/common/cmd_fpga.c386
1 files changed, 386 insertions, 0 deletions
diff --git a/u-boot/common/cmd_fpga.c b/u-boot/common/cmd_fpga.c
new file mode 100644
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--- /dev/null
+++ b/u-boot/common/cmd_fpga.c
@@ -0,0 +1,386 @@
+/*
+ * (C) Copyright 2000, 2001
+ * Rich Ireland, Enterasys Networks, rireland@enterasys.com.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+/*
+ * FPGA support
+ */
+#include <common.h>
+#include <command.h>
+#if defined(CONFIG_CMD_NET)
+#include <net.h>
+#endif
+#include <fpga.h>
+#include <malloc.h>
+
+#if 0
+#define FPGA_DEBUG
+#endif
+
+#ifdef FPGA_DEBUG
+#define PRINTF(fmt,args...) printf (fmt ,##args)
+#else
+#define PRINTF(fmt,args...)
+#endif
+
+/* Local functions */
+static int fpga_get_op (char *opstr);
+
+/* Local defines */
+#define FPGA_NONE -1
+#define FPGA_INFO 0
+#define FPGA_LOAD 1
+#define FPGA_LOADB 2
+#define FPGA_DUMP 3
+#define FPGA_LOADMK 4
+
+/* Convert bitstream data and load into the fpga */
+int fpga_loadbitstream(unsigned long dev, char* fpgadata, size_t size)
+{
+#if defined(CONFIG_FPGA_XILINX)
+ unsigned int length;
+ unsigned int swapsize;
+ char buffer[80];
+ unsigned char *dataptr;
+ unsigned int i;
+ int rc;
+
+ dataptr = (unsigned char *)fpgadata;
+
+ /* skip the first bytes of the bitsteam, their meaning is unknown */
+ length = (*dataptr << 8) + *(dataptr+1);
+ dataptr+=2;
+ dataptr+=length;
+
+ /* get design name (identifier, length, string) */
+ length = (*dataptr << 8) + *(dataptr+1);
+ dataptr+=2;
+ if (*dataptr++ != 0x61) {
+ PRINTF ("%s: Design name identifier not recognized in bitstream\n",
+ __FUNCTION__ );
+ return FPGA_FAIL;
+ }
+
+ length = (*dataptr << 8) + *(dataptr+1);
+ dataptr+=2;
+ for(i=0;i<length;i++)
+ buffer[i] = *dataptr++;
+
+ printf(" design filename = \"%s\"\n", buffer);
+
+ /* get part number (identifier, length, string) */
+ if (*dataptr++ != 0x62) {
+ printf("%s: Part number identifier not recognized in bitstream\n",
+ __FUNCTION__ );
+ return FPGA_FAIL;
+ }
+
+ length = (*dataptr << 8) + *(dataptr+1);
+ dataptr+=2;
+ for(i=0;i<length;i++)
+ buffer[i] = *dataptr++;
+ printf(" part number = \"%s\"\n", buffer);
+
+ /* get date (identifier, length, string) */
+ if (*dataptr++ != 0x63) {
+ printf("%s: Date identifier not recognized in bitstream\n",
+ __FUNCTION__);
+ return FPGA_FAIL;
+ }
+
+ length = (*dataptr << 8) + *(dataptr+1);
+ dataptr+=2;
+ for(i=0;i<length;i++)
+ buffer[i] = *dataptr++;
+ printf(" date = \"%s\"\n", buffer);
+
+ /* get time (identifier, length, string) */
+ if (*dataptr++ != 0x64) {
+ printf("%s: Time identifier not recognized in bitstream\n",__FUNCTION__);
+ return FPGA_FAIL;
+ }
+
+ length = (*dataptr << 8) + *(dataptr+1);
+ dataptr+=2;
+ for(i=0;i<length;i++)
+ buffer[i] = *dataptr++;
+ printf(" time = \"%s\"\n", buffer);
+
+ /* get fpga data length (identifier, length) */
+ if (*dataptr++ != 0x65) {
+ printf("%s: Data length identifier not recognized in bitstream\n",
+ __FUNCTION__);
+ return FPGA_FAIL;
+ }
+ swapsize = ((unsigned int) *dataptr <<24) +
+ ((unsigned int) *(dataptr+1) <<16) +
+ ((unsigned int) *(dataptr+2) <<8 ) +
+ ((unsigned int) *(dataptr+3) ) ;
+ dataptr+=4;
+ printf(" bytes in bitstream = %d\n", swapsize);
+
+ rc = fpga_load(dev, dataptr, swapsize);
+ return rc;
+#else
+ printf("Bitstream support only for Xilinx devices\n");
+ return FPGA_FAIL;
+#endif
+}
+
+/* ------------------------------------------------------------------------- */
+/* command form:
+ * fpga <op> <device number> <data addr> <datasize>
+ * where op is 'load', 'dump', or 'info'
+ * If there is no device number field, the fpga environment variable is used.
+ * If there is no data addr field, the fpgadata environment variable is used.
+ * The info command requires no data address field.
+ */
+int do_fpga (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
+{
+ int op, dev = FPGA_INVALID_DEVICE;
+ size_t data_size = 0;
+ void *fpga_data = NULL;
+ char *devstr = getenv ("fpga");
+ char *datastr = getenv ("fpgadata");
+ int rc = FPGA_FAIL;
+ int wrong_parms = 0;
+#if defined (CONFIG_FIT)
+ const char *fit_uname = NULL;
+ ulong fit_addr;
+#endif
+
+ if (devstr)
+ dev = (int) simple_strtoul (devstr, NULL, 16);
+ if (datastr)
+ fpga_data = (void *) simple_strtoul (datastr, NULL, 16);
+
+ switch (argc) {
+ case 5: /* fpga <op> <dev> <data> <datasize> */
+ data_size = simple_strtoul (argv[4], NULL, 16);
+
+ case 4: /* fpga <op> <dev> <data> */
+#if defined(CONFIG_FIT)
+ if (fit_parse_subimage (argv[3], (ulong)fpga_data,
+ &fit_addr, &fit_uname)) {
+ fpga_data = (void *)fit_addr;
+ debug ("* fpga: subimage '%s' from FIT image at 0x%08lx\n",
+ fit_uname, fit_addr);
+ } else
+#endif
+ {
+ fpga_data = (void *) simple_strtoul (argv[3], NULL, 16);
+ debug ("* fpga: cmdline image address = 0x%08lx\n", (ulong)fpga_data);
+ }
+ PRINTF ("%s: fpga_data = 0x%x\n", __FUNCTION__, (uint) fpga_data);
+
+ case 3: /* fpga <op> <dev | data addr> */
+ dev = (int) simple_strtoul (argv[2], NULL, 16);
+ PRINTF ("%s: device = %d\n", __FUNCTION__, dev);
+ /* FIXME - this is a really weak test */
+ if ((argc == 3) && (dev > fpga_count ())) { /* must be buffer ptr */
+ PRINTF ("%s: Assuming buffer pointer in arg 3\n",
+ __FUNCTION__);
+
+#if defined(CONFIG_FIT)
+ if (fit_parse_subimage (argv[2], (ulong)fpga_data,
+ &fit_addr, &fit_uname)) {
+ fpga_data = (void *)fit_addr;
+ debug ("* fpga: subimage '%s' from FIT image at 0x%08lx\n",
+ fit_uname, fit_addr);
+ } else
+#endif
+ {
+ fpga_data = (void *) dev;
+ debug ("* fpga: cmdline image address = 0x%08lx\n", (ulong)fpga_data);
+ }
+
+ PRINTF ("%s: fpga_data = 0x%x\n",
+ __FUNCTION__, (uint) fpga_data);
+ dev = FPGA_INVALID_DEVICE; /* reset device num */
+ }
+
+ case 2: /* fpga <op> */
+ op = (int) fpga_get_op (argv[1]);
+ break;
+
+ default:
+ PRINTF ("%s: Too many or too few args (%d)\n",
+ __FUNCTION__, argc);
+ op = FPGA_NONE; /* force usage display */
+ break;
+ }
+
+ if (dev == FPGA_INVALID_DEVICE) {
+ puts("FPGA device not specified\n");
+ op = FPGA_NONE;
+ }
+
+ switch (op) {
+ case FPGA_NONE:
+ case FPGA_INFO:
+ break;
+ case FPGA_LOAD:
+ case FPGA_LOADB:
+ case FPGA_DUMP:
+ if (!fpga_data || !data_size)
+ wrong_parms = 1;
+ break;
+ case FPGA_LOADMK:
+ if (!fpga_data)
+ wrong_parms = 1;
+ break;
+ }
+
+ if (wrong_parms) {
+ puts("Wrong parameters for FPGA request\n");
+ op = FPGA_NONE;
+ }
+
+ switch (op) {
+ case FPGA_NONE:
+ return cmd_usage(cmdtp);
+
+ case FPGA_INFO:
+ rc = fpga_info (dev);
+ break;
+
+ case FPGA_LOAD:
+ rc = fpga_load (dev, fpga_data, data_size);
+ break;
+
+ case FPGA_LOADB:
+ rc = fpga_loadbitstream(dev, fpga_data, data_size);
+ break;
+
+ case FPGA_LOADMK:
+ switch (genimg_get_format (fpga_data)) {
+ case IMAGE_FORMAT_LEGACY:
+ {
+ image_header_t *hdr = (image_header_t *)fpga_data;
+ ulong data;
+
+ data = (ulong)image_get_data (hdr);
+ data_size = image_get_data_size (hdr);
+ rc = fpga_load (dev, (void *)data, data_size);
+ }
+ break;
+#if defined(CONFIG_FIT)
+ case IMAGE_FORMAT_FIT:
+ {
+ const void *fit_hdr = (const void *)fpga_data;
+ int noffset;
+ void *fit_data;
+
+ if (fit_uname == NULL) {
+ puts ("No FIT subimage unit name\n");
+ return 1;
+ }
+
+ if (!fit_check_format (fit_hdr)) {
+ puts ("Bad FIT image format\n");
+ return 1;
+ }
+
+ /* get fpga component image node offset */
+ noffset = fit_image_get_node (fit_hdr, fit_uname);
+ if (noffset < 0) {
+ printf ("Can't find '%s' FIT subimage\n", fit_uname);
+ return 1;
+ }
+
+ /* verify integrity */
+ if (!fit_image_check_hashes (fit_hdr, noffset)) {
+ puts ("Bad Data Hash\n");
+ return 1;
+ }
+
+ /* get fpga subimage data address and length */
+ if (fit_image_get_data (fit_hdr, noffset, &fit_data, &data_size)) {
+ puts ("Could not find fpga subimage data\n");
+ return 1;
+ }
+
+ rc = fpga_load (dev, fit_data, data_size);
+ }
+ break;
+#endif
+ default:
+ puts ("** Unknown image type\n");
+ rc = FPGA_FAIL;
+ break;
+ }
+ break;
+
+ case FPGA_DUMP:
+ rc = fpga_dump (dev, fpga_data, data_size);
+ break;
+
+ default:
+ printf ("Unknown operation\n");
+ return cmd_usage(cmdtp);
+ }
+ return (rc);
+}
+
+/*
+ * Map op to supported operations. We don't use a table since we
+ * would just have to relocate it from flash anyway.
+ */
+static int fpga_get_op (char *opstr)
+{
+ int op = FPGA_NONE;
+
+ if (!strcmp ("info", opstr)) {
+ op = FPGA_INFO;
+ } else if (!strcmp ("loadb", opstr)) {
+ op = FPGA_LOADB;
+ } else if (!strcmp ("load", opstr)) {
+ op = FPGA_LOAD;
+ } else if (!strcmp ("loadmk", opstr)) {
+ op = FPGA_LOADMK;
+ } else if (!strcmp ("dump", opstr)) {
+ op = FPGA_DUMP;
+ }
+
+ if (op == FPGA_NONE) {
+ printf ("Unknown fpga operation \"%s\"\n", opstr);
+ }
+ return op;
+}
+
+U_BOOT_CMD (fpga, 6, 1, do_fpga,
+ "loadable FPGA image support",
+ "[operation type] [device number] [image address] [image size]\n"
+ "fpga operations:\n"
+ " dump\t[dev]\t\t\tLoad device to memory buffer\n"
+ " info\t[dev]\t\t\tlist known device information\n"
+ " load\t[dev] [address] [size]\tLoad device from memory buffer\n"
+ " loadb\t[dev] [address] [size]\t"
+ "Load device from bitstream buffer (Xilinx only)\n"
+ " loadmk [dev] [address]\tLoad device generated with mkimage"
+#if defined(CONFIG_FIT)
+ "\n"
+ "\tFor loadmk operating on FIT format uImage address must include\n"
+ "\tsubimage unit name in the form of addr:<subimg_uname>"
+#endif
+);
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