--- /dev/null
+/*
+ * (C) Copyright 2002
+ * Rich Ireland, Enterasys Networks, rireland@enterasys.com.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+/* Generic FPGA support */
+#include <common.h> /* core U-Boot definitions */
+#include <xilinx.h> /* xilinx specific definitions */
+#include <altera.h> /* altera specific definitions */
+#include <lattice.h>
+
+/* Local definitions */
+#ifndef CONFIG_MAX_FPGA_DEVICES
+#define CONFIG_MAX_FPGA_DEVICES 5
+#endif
+
+/* Local static data */
+static int next_desc = FPGA_INVALID_DEVICE;
+static fpga_desc desc_table[CONFIG_MAX_FPGA_DEVICES];
+
+/*
+ * fpga_no_sup
+ * 'no support' message function
+ */
+static void fpga_no_sup(char *fn, char *msg)
+{
+ if (fn && msg)
+ printf("%s: No support for %s.\n", fn, msg);
+ else if (msg)
+ printf("No support for %s.\n", msg);
+ else
+ printf("No FPGA suport!\n");
+}
+
+
+/* fpga_get_desc
+ * map a device number to a descriptor
+ */
+static const fpga_desc *const fpga_get_desc(int devnum)
+{
+ fpga_desc *desc = (fpga_desc *)NULL;
+
+ if ((devnum >= 0) && (devnum < next_desc)) {
+ desc = &desc_table[devnum];
+ debug("%s: found fpga descriptor #%d @ 0x%p\n",
+ __func__, devnum, desc);
+ }
+
+ return desc;
+}
+
+/*
+ * fpga_validate
+ * generic parameter checking code
+ */
+const fpga_desc *const fpga_validate(int devnum, const void *buf,
+ size_t bsize, char *fn)
+{
+ const fpga_desc *desc = fpga_get_desc(devnum);
+
+ if (!desc)
+ printf("%s: Invalid device number %d\n", fn, devnum);
+
+ if (!buf) {
+ printf("%s: Null buffer.\n", fn);
+ return (fpga_desc * const)NULL;
+ }
+ return desc;
+}
+
+/*
+ * fpga_dev_info
+ * generic multiplexing code
+ */
+static int fpga_dev_info(int devnum)
+{
+ int ret_val = FPGA_FAIL; /* assume failure */
+ const fpga_desc * const desc = fpga_get_desc(devnum);
+
+ if (desc) {
+ debug("%s: Device Descriptor @ 0x%p\n",
+ __func__, desc->devdesc);
+
+ switch (desc->devtype) {
+ case fpga_xilinx:
+#if defined(CONFIG_FPGA_XILINX)
+ printf("Xilinx Device\nDescriptor @ 0x%p\n", desc);
+ ret_val = xilinx_info(desc->devdesc);
+#else
+ fpga_no_sup((char *)__func__, "Xilinx devices");
+#endif
+ break;
+ case fpga_altera:
+#if defined(CONFIG_FPGA_ALTERA)
+ printf("Altera Device\nDescriptor @ 0x%p\n", desc);
+ ret_val = altera_info(desc->devdesc);
+#else
+ fpga_no_sup((char *)__func__, "Altera devices");
+#endif
+ break;
+ case fpga_lattice:
+#if defined(CONFIG_FPGA_LATTICE)
+ printf("Lattice Device\nDescriptor @ 0x%p\n", desc);
+ ret_val = lattice_info(desc->devdesc);
+#else
+ fpga_no_sup((char *)__func__, "Lattice devices");
+#endif
+ break;
+ default:
+ printf("%s: Invalid or unsupported device type %d\n",
+ __func__, desc->devtype);
+ }
+ } else {
+ printf("%s: Invalid device number %d\n", __func__, devnum);
+ }
+
+ return ret_val;
+}
+
+/*
+ * fgpa_init is usually called from misc_init_r() and MUST be called
+ * before any of the other fpga functions are used.
+ */
+void fpga_init(void)
+{
+ next_desc = 0;
+ memset(desc_table, 0, sizeof(desc_table));
+
+ debug("%s\n", __func__);
+}
+
+/*
+ * fpga_count
+ * Basic interface function to get the current number of devices available.
+ */
+int fpga_count(void)
+{
+ return next_desc;
+}
+
+/*
+ * fpga_add
+ * Add the device descriptor to the device table.
+ */
+int fpga_add(fpga_type devtype, void *desc)
+{
+ int devnum = FPGA_INVALID_DEVICE;
+
+ if (next_desc < 0) {
+ printf("%s: FPGA support not initialized!\n", __func__);
+ } else if ((devtype > fpga_min_type) && (devtype < fpga_undefined)) {
+ if (desc) {
+ if (next_desc < CONFIG_MAX_FPGA_DEVICES) {
+ devnum = next_desc;
+ desc_table[next_desc].devtype = devtype;
+ desc_table[next_desc++].devdesc = desc;
+ } else {
+ printf("%s: Exceeded Max FPGA device count\n",
+ __func__);
+ }
+ } else {
+ printf("%s: NULL device descriptor\n", __func__);
+ }
+ } else {
+ printf("%s: Unsupported FPGA type %d\n", __func__, devtype);
+ }
+
+ return devnum;
+}
+
+/*
+ * Convert bitstream data and load into the fpga
+ */
+int __weak fpga_loadbitstream(int devnum, char *fpgadata, size_t size)
+{
+ printf("Bitstream support not implemented for this FPGA device\n");
+ return FPGA_FAIL;
+}
+
+/*
+ * Generic multiplexing code
+ */
+int fpga_load(int devnum, const void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL; /* assume failure */
+ const fpga_desc *desc = fpga_validate(devnum, buf, bsize,
+ (char *)__func__);
+
+ if (desc) {
+ switch (desc->devtype) {
+ case fpga_xilinx:
+#if defined(CONFIG_FPGA_XILINX)
+ ret_val = xilinx_load(desc->devdesc, buf, bsize);
+#else
+ fpga_no_sup((char *)__func__, "Xilinx devices");
+#endif
+ break;
+ case fpga_altera:
+#if defined(CONFIG_FPGA_ALTERA)
+ ret_val = altera_load(desc->devdesc, buf, bsize);
+#else
+ fpga_no_sup((char *)__func__, "Altera devices");
+#endif
+ break;
+ case fpga_lattice:
+#if defined(CONFIG_FPGA_LATTICE)
+ ret_val = lattice_load(desc->devdesc, buf, bsize);
+#else
+ fpga_no_sup((char *)__func__, "Lattice devices");
+#endif
+ break;
+ default:
+ printf("%s: Invalid or unsupported device type %d\n",
+ __func__, desc->devtype);
+ }
+ }
+
+ return ret_val;
+}
+
+/*
+ * fpga_dump
+ * generic multiplexing code
+ */
+int fpga_dump(int devnum, const void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL; /* assume failure */
+ const fpga_desc *desc = fpga_validate(devnum, buf, bsize,
+ (char *)__func__);
+
+ if (desc) {
+ switch (desc->devtype) {
+ case fpga_xilinx:
+#if defined(CONFIG_FPGA_XILINX)
+ ret_val = xilinx_dump(desc->devdesc, buf, bsize);
+#else
+ fpga_no_sup((char *)__func__, "Xilinx devices");
+#endif
+ break;
+ case fpga_altera:
+#if defined(CONFIG_FPGA_ALTERA)
+ ret_val = altera_dump(desc->devdesc, buf, bsize);
+#else
+ fpga_no_sup((char *)__func__, "Altera devices");
+#endif
+ break;
+ case fpga_lattice:
+#if defined(CONFIG_FPGA_LATTICE)
+ ret_val = lattice_dump(desc->devdesc, buf, bsize);
+#else
+ fpga_no_sup((char *)__func__, "Lattice devices");
+#endif
+ break;
+ default:
+ printf("%s: Invalid or unsupported device type %d\n",
+ __func__, desc->devtype);
+ }
+ }
+
+ return ret_val;
+}
+
+/*
+ * fpga_info
+ * front end to fpga_dev_info. If devnum is invalid, report on all
+ * available devices.
+ */
+int fpga_info(int devnum)
+{
+ if (devnum == FPGA_INVALID_DEVICE) {
+ if (next_desc > 0) {
+ int dev;
+
+ for (dev = 0; dev < next_desc; dev++)
+ fpga_dev_info(dev);
+
+ return FPGA_SUCCESS;
+ } else {
+ printf("%s: No FPGA devices available.\n", __func__);
+ return FPGA_FAIL;
+ }
+ }
+
+ return fpga_dev_info(devnum);
+}
Code Review / kvmfornfv.git / blobdiff