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authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2008-10-31 12:26:55 +0100
committerWolfgang Denk <wd@denx.de>2008-12-05 22:41:33 +0100
commitc8aa7dfc18f7cc90d0aea6c7becbb67dfc5bba4b (patch)
treed9292e4adfabed6d397a3c301f7eb23677fdc12d /drivers/fpga
parent90665e3d97948000f98846ded37c921c7ae67dd7 (diff)
downloadu-boot-linaro-c8aa7dfc18f7cc90d0aea6c7becbb67dfc5bba4b.tar.gz
FPGA: move fpga drivers to drivers/fpga
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Diffstat (limited to 'drivers/fpga')
-rw-r--r--drivers/fpga/ACEX1K.c362
-rw-r--r--drivers/fpga/Makefile58
-rw-r--r--drivers/fpga/altera.c283
-rw-r--r--drivers/fpga/cyclon2.c301
-rw-r--r--drivers/fpga/fpga.c335
-rw-r--r--drivers/fpga/spartan2.c663
-rw-r--r--drivers/fpga/spartan3.c668
-rw-r--r--drivers/fpga/stratixII.c231
-rw-r--r--drivers/fpga/virtex2.c554
-rw-r--r--drivers/fpga/xilinx.c307
10 files changed, 3762 insertions, 0 deletions
diff --git a/drivers/fpga/ACEX1K.c b/drivers/fpga/ACEX1K.c
new file mode 100644
index 000000000..3f7967782
--- /dev/null
+++ b/drivers/fpga/ACEX1K.c
@@ -0,0 +1,362 @@
+/*
+ * (C) Copyright 2003
+ * Steven Scholz, imc Measurement & Control, steven.scholz@imc-berlin.de
+ *
+ * (C) Copyright 2002
+ * 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
+ *
+ */
+
+#include <common.h> /* core U-Boot definitions */
+#include <ACEX1K.h> /* ACEX device family */
+
+/* Define FPGA_DEBUG to get debug printf's */
+#ifdef FPGA_DEBUG
+#define PRINTF(fmt,args...) printf (fmt ,##args)
+#else
+#define PRINTF(fmt,args...)
+#endif
+
+/* Note: The assumption is that we cannot possibly run fast enough to
+ * overrun the device (the Slave Parallel mode can free run at 50MHz).
+ * If there is a need to operate slower, define CONFIG_FPGA_DELAY in
+ * the board config file to slow things down.
+ */
+#ifndef CONFIG_FPGA_DELAY
+#define CONFIG_FPGA_DELAY()
+#endif
+
+#ifndef CONFIG_SYS_FPGA_WAIT
+#define CONFIG_SYS_FPGA_WAIT CONFIG_SYS_HZ/10 /* 100 ms */
+#endif
+
+static int ACEX1K_ps_load( Altera_desc *desc, void *buf, size_t bsize );
+static int ACEX1K_ps_dump( Altera_desc *desc, void *buf, size_t bsize );
+/* static int ACEX1K_ps_info( Altera_desc *desc ); */
+static int ACEX1K_ps_reloc( Altera_desc *desc, ulong reloc_offset );
+
+/* ------------------------------------------------------------------------- */
+/* ACEX1K Generic Implementation */
+int ACEX1K_load (Altera_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL;
+
+ switch (desc->iface) {
+ case passive_serial:
+ PRINTF ("%s: Launching Passive Serial Loader\n", __FUNCTION__);
+ ret_val = ACEX1K_ps_load (desc, buf, bsize);
+ break;
+
+ /* Add new interface types here */
+
+ default:
+ printf ("%s: Unsupported interface type, %d\n",
+ __FUNCTION__, desc->iface);
+ }
+
+ return ret_val;
+}
+
+int ACEX1K_dump (Altera_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL;
+
+ switch (desc->iface) {
+ case passive_serial:
+ PRINTF ("%s: Launching Passive Serial Dump\n", __FUNCTION__);
+ ret_val = ACEX1K_ps_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 ACEX1K_info( Altera_desc *desc )
+{
+ return FPGA_SUCCESS;
+}
+
+
+int ACEX1K_reloc (Altera_desc * desc, ulong reloc_offset)
+{
+ int ret_val = FPGA_FAIL; /* assume a failure */
+
+ if (desc->family != Altera_ACEX1K) {
+ printf ("%s: Unsupported family type, %d\n",
+ __FUNCTION__, desc->family);
+ return FPGA_FAIL;
+ } else
+ switch (desc->iface) {
+ case passive_serial:
+ ret_val = ACEX1K_ps_reloc (desc, reloc_offset);
+ break;
+
+ /* Add new interface types here */
+
+ default:
+ printf ("%s: Unsupported interface type, %d\n",
+ __FUNCTION__, desc->iface);
+ }
+
+ return ret_val;
+}
+
+
+/* ------------------------------------------------------------------------- */
+/* ACEX1K Passive Serial Generic Implementation */
+
+static int ACEX1K_ps_load (Altera_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL; /* assume the worst */
+ Altera_ACEX1K_Passive_Serial_fns *fn = desc->iface_fns;
+ int i;
+
+ PRINTF ("%s: start with interface functions @ 0x%p\n",
+ __FUNCTION__, fn);
+
+ if (fn) {
+ size_t bytecount = 0;
+ unsigned char *data = (unsigned char *) buf;
+ int cookie = desc->cookie; /* make a local copy */
+ unsigned long ts; /* timestamp */
+
+ PRINTF ("%s: Function Table:\n"
+ "ptr:\t0x%p\n"
+ "struct: 0x%p\n"
+ "config:\t0x%p\n"
+ "status:\t0x%p\n"
+ "clk:\t0x%p\n"
+ "data:\t0x%p\n"
+ "done:\t0x%p\n\n",
+ __FUNCTION__, &fn, fn, fn->config, fn->status,
+ fn->clk, fn->data, fn->done);
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ printf ("Loading FPGA Device %d...", cookie);
+#endif
+
+ /*
+ * Run the pre configuration function if there is one.
+ */
+ if (*fn->pre) {
+ (*fn->pre) (cookie);
+ }
+
+ /* Establish the initial state */
+ (*fn->config) (TRUE, TRUE, cookie); /* Assert nCONFIG */
+
+ udelay(2); /* T_cfg > 2us */
+
+ /* nSTATUS should be asserted now */
+ (*fn->done) (cookie);
+ if ( !(*fn->status) (cookie) ) {
+ puts ("** nSTATUS is not asserted.\n");
+ (*fn->abort) (cookie);
+ return FPGA_FAIL;
+ }
+
+ (*fn->config) (FALSE, TRUE, cookie); /* Deassert nCONFIG */
+ udelay(2); /* T_cf2st1 < 4us */
+
+ /* Wait for nSTATUS to be released (i.e. deasserted) */
+ ts = get_timer (0); /* get current time */
+ do {
+ CONFIG_FPGA_DELAY ();
+ if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */
+ puts ("** Timeout waiting for STATUS to go high.\n");
+ (*fn->abort) (cookie);
+ return FPGA_FAIL;
+ }
+ (*fn->done) (cookie);
+ } while ((*fn->status) (cookie));
+
+ /* Get ready for the burn */
+ CONFIG_FPGA_DELAY ();
+
+ /* Load the data */
+ while (bytecount < bsize) {
+ unsigned char val=0;
+#ifdef CONFIG_SYS_FPGA_CHECK_CTRLC
+ if (ctrlc ()) {
+ (*fn->abort) (cookie);
+ return FPGA_FAIL;
+ }
+#endif
+ /* Altera detects an error if INIT goes low (active)
+ while DONE is low (inactive) */
+#if 0 /* not yet implemented */
+ if ((*fn->done) (cookie) == 0 && (*fn->init) (cookie)) {
+ puts ("** CRC error during FPGA load.\n");
+ (*fn->abort) (cookie);
+ return (FPGA_FAIL);
+ }
+#endif
+ val = data [bytecount ++ ];
+ i = 8;
+ do {
+ /* Deassert the clock */
+ (*fn->clk) (FALSE, TRUE, cookie);
+ CONFIG_FPGA_DELAY ();
+ /* Write data */
+ (*fn->data) ( (val & 0x01), TRUE, cookie);
+ CONFIG_FPGA_DELAY ();
+ /* Assert the clock */
+ (*fn->clk) (TRUE, TRUE, cookie);
+ CONFIG_FPGA_DELAY ();
+ val >>= 1;
+ i --;
+ } while (i > 0);
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ if (bytecount % (bsize / 40) == 0)
+ putc ('.'); /* let them know we are alive */
+#endif
+ }
+
+ CONFIG_FPGA_DELAY ();
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ putc (' '); /* terminate the dotted line */
+#endif
+
+ /*
+ * Checking FPGA's CONF_DONE signal - correctly booted ?
+ */
+
+ if ( ! (*fn->done) (cookie) ) {
+ puts ("** Booting failed! CONF_DONE is still deasserted.\n");
+ (*fn->abort) (cookie);
+ return (FPGA_FAIL);
+ }
+
+ /*
+ * "DCLK must be clocked an additional 10 times fpr ACEX 1K..."
+ */
+
+ for (i = 0; i < 12; i++) {
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */
+ }
+
+ ret_val = FPGA_SUCCESS;
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ if (ret_val == FPGA_SUCCESS) {
+ puts ("Done.\n");
+ }
+ else {
+ puts ("Fail.\n");
+ }
+#endif
+ (*fn->post) (cookie);
+
+ } else {
+ printf ("%s: NULL Interface function table!\n", __FUNCTION__);
+ }
+
+ return ret_val;
+}
+
+static int ACEX1K_ps_dump (Altera_desc * desc, void *buf, size_t bsize)
+{
+ /* Readback is only available through the Slave Parallel and */
+ /* boundary-scan interfaces. */
+ printf ("%s: Passive Serial Dumping is unavailable\n",
+ __FUNCTION__);
+ return FPGA_FAIL;
+}
+
+static int ACEX1K_ps_reloc (Altera_desc * desc, ulong reloc_offset)
+{
+ int ret_val = FPGA_FAIL; /* assume the worst */
+ Altera_ACEX1K_Passive_Serial_fns *fn_r, *fn =
+ (Altera_ACEX1K_Passive_Serial_fns *) (desc->iface_fns);
+
+ if (fn) {
+ ulong addr;
+
+ /* Get the relocated table address */
+ addr = (ulong) fn + reloc_offset;
+ fn_r = (Altera_ACEX1K_Passive_Serial_fns *) addr;
+
+ if (!fn_r->relocated) {
+
+ if (memcmp (fn_r, fn,
+ sizeof (Altera_ACEX1K_Passive_Serial_fns))
+ == 0) {
+ /* good copy of the table, fix the descriptor pointer */
+ desc->iface_fns = fn_r;
+ } else {
+ PRINTF ("%s: Invalid function table at 0x%p\n",
+ __FUNCTION__, fn_r);
+ return FPGA_FAIL;
+ }
+
+ PRINTF ("%s: Relocating descriptor at 0x%p\n", __FUNCTION__,
+ desc);
+
+ addr = (ulong) (fn->pre) + reloc_offset;
+ fn_r->pre = (Altera_pre_fn) addr;
+
+ addr = (ulong) (fn->config) + reloc_offset;
+ fn_r->config = (Altera_config_fn) addr;
+
+ addr = (ulong) (fn->status) + reloc_offset;
+ fn_r->status = (Altera_status_fn) addr;
+
+ addr = (ulong) (fn->done) + reloc_offset;
+ fn_r->done = (Altera_done_fn) addr;
+
+ addr = (ulong) (fn->clk) + reloc_offset;
+ fn_r->clk = (Altera_clk_fn) addr;
+
+ addr = (ulong) (fn->data) + reloc_offset;
+ fn_r->data = (Altera_data_fn) addr;
+
+ addr = (ulong) (fn->abort) + reloc_offset;
+ fn_r->abort = (Altera_abort_fn) addr;
+
+ addr = (ulong) (fn->post) + reloc_offset;
+ fn_r->post = (Altera_post_fn) addr;
+
+ fn_r->relocated = TRUE;
+
+ } else {
+ /* this table has already been moved */
+ /* XXX - should check to see if the descriptor is correct */
+ desc->iface_fns = fn_r;
+ }
+
+ ret_val = FPGA_SUCCESS;
+ } else {
+ printf ("%s: NULL Interface function table!\n", __FUNCTION__);
+ }
+
+ return ret_val;
+
+}
diff --git a/drivers/fpga/Makefile b/drivers/fpga/Makefile
new file mode 100644
index 000000000..52d8e2432
--- /dev/null
+++ b/drivers/fpga/Makefile
@@ -0,0 +1,58 @@
+#
+# (C) Copyright 2008
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# 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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB := $(obj)libfpga.a
+
+ifdef CONFIG_FPGA
+COBJS-y += fpga.o
+COBJS-$(CONFIG_FPGA_SPARTAN2) += spartan2.o
+COBJS-$(CONFIG_FPGA_SPARTAN3) += spartan3.o
+COBJS-$(CONFIG_FPGA_VIRTEX2) += virtex2.o
+COBJS-$(CONFIG_FPGA_XILINX) += xilinx.o
+ifdef CONFIG_FPGA_ALTERA
+COBJS-y += altera.o
+COBJS-$(CONFIG_FPGA_ACEX1K) += ACEX1K.o
+COBJS-$(CONFIG_FPGA_CYCLON2) += cyclon2.o
+COBJS-$(CONFIG_FPGA_STRATIX_II) += stratixII.o
+endif
+endif
+
+COBJS := $(COBJS-y)
+SRCS := $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+
+all: $(LIB)
+
+$(LIB): $(obj).depend $(OBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS)
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/drivers/fpga/altera.c b/drivers/fpga/altera.c
new file mode 100644
index 000000000..09dc0b22e
--- /dev/null
+++ b/drivers/fpga/altera.c
@@ -0,0 +1,283 @@
+/*
+ * (C) Copyright 2003
+ * Steven Scholz, imc Measurement & Control, steven.scholz@imc-berlin.de
+ *
+ * (C) Copyright 2002
+ * 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
+ *
+ */
+
+/*
+ * Altera FPGA support
+ */
+#include <common.h>
+#include <ACEX1K.h>
+#include <stratixII.h>
+
+/* Define FPGA_DEBUG to get debug printf's */
+/* #define FPGA_DEBUG */
+
+#ifdef FPGA_DEBUG
+#define PRINTF(fmt,args...) printf (fmt ,##args)
+#else
+#define PRINTF(fmt,args...)
+#endif
+
+/* Local Static Functions */
+static int altera_validate (Altera_desc * desc, const char *fn);
+
+/* ------------------------------------------------------------------------- */
+int altera_load( Altera_desc *desc, void *buf, size_t bsize )
+{
+ int ret_val = FPGA_FAIL; /* assume a failure */
+
+ if (!altera_validate (desc, (char *)__FUNCTION__)) {
+ printf ("%s: Invalid device descriptor\n", __FUNCTION__);
+ } else {
+ switch (desc->family) {
+ case Altera_ACEX1K:
+ case Altera_CYC2:
+#if defined(CONFIG_FPGA_ACEX1K)
+ PRINTF ("%s: Launching the ACEX1K Loader...\n",
+ __FUNCTION__);
+ ret_val = ACEX1K_load (desc, buf, bsize);
+#elif defined(CONFIG_FPGA_CYCLON2)
+ PRINTF ("%s: Launching the CYCLON II Loader...\n",
+ __FUNCTION__);
+ ret_val = CYC2_load (desc, buf, bsize);
+#else
+ printf ("%s: No support for ACEX1K devices.\n",
+ __FUNCTION__);
+#endif
+ break;
+
+#if defined(CONFIG_FPGA_STRATIX_II)
+ case Altera_StratixII:
+ PRINTF ("%s: Launching the Stratix II Loader...\n",
+ __FUNCTION__);
+ ret_val = StratixII_load (desc, buf, bsize);
+ break;
+#endif
+ default:
+ printf ("%s: Unsupported family type, %d\n",
+ __FUNCTION__, desc->family);
+ }
+ }
+
+ return ret_val;
+}
+
+int altera_dump( Altera_desc *desc, void *buf, size_t bsize )
+{
+ int ret_val = FPGA_FAIL; /* assume a failure */
+
+ if (!altera_validate (desc, (char *)__FUNCTION__)) {
+ printf ("%s: Invalid device descriptor\n", __FUNCTION__);
+ } else {
+ switch (desc->family) {
+ case Altera_ACEX1K:
+#if defined(CONFIG_FPGA_ACEX)
+ PRINTF ("%s: Launching the ACEX1K Reader...\n",
+ __FUNCTION__);
+ ret_val = ACEX1K_dump (desc, buf, bsize);
+#else
+ printf ("%s: No support for ACEX1K devices.\n",
+ __FUNCTION__);
+#endif
+ break;
+
+#if defined(CONFIG_FPGA_STRATIX_II)
+ case Altera_StratixII:
+ PRINTF ("%s: Launching the Stratix II Reader...\n",
+ __FUNCTION__);
+ ret_val = StratixII_dump (desc, buf, bsize);
+ break;
+#endif
+ default:
+ printf ("%s: Unsupported family type, %d\n",
+ __FUNCTION__, desc->family);
+ }
+ }
+
+ return ret_val;
+}
+
+int altera_info( Altera_desc *desc )
+{
+ int ret_val = FPGA_FAIL;
+
+ if (altera_validate (desc, (char *)__FUNCTION__)) {
+ printf ("Family: \t");
+ switch (desc->family) {
+ case Altera_ACEX1K:
+ printf ("ACEX1K\n");
+ break;
+ case Altera_CYC2:
+ printf ("CYCLON II\n");
+ break;
+ case Altera_StratixII:
+ printf ("Stratix II\n");
+ break;
+ /* Add new family types here */
+ default:
+ printf ("Unknown family type, %d\n", desc->family);
+ }
+
+ printf ("Interface type:\t");
+ switch (desc->iface) {
+ case passive_serial:
+ printf ("Passive Serial (PS)\n");
+ break;
+ case passive_parallel_synchronous:
+ printf ("Passive Parallel Synchronous (PPS)\n");
+ break;
+ case passive_parallel_asynchronous:
+ printf ("Passive Parallel Asynchronous (PPA)\n");
+ break;
+ case passive_serial_asynchronous:
+ printf ("Passive Serial Asynchronous (PSA)\n");
+ break;
+ case altera_jtag_mode: /* Not used */
+ printf ("JTAG Mode\n");
+ break;
+ case fast_passive_parallel:
+ printf ("Fast Passive Parallel (FPP)\n");
+ break;
+ case fast_passive_parallel_security:
+ printf
+ ("Fast Passive Parallel with Security (FPPS) \n");
+ break;
+ /* Add new interface types here */
+ default:
+ printf ("Unsupported interface type, %d\n", desc->iface);
+ }
+
+ printf ("Device Size: \t%d bytes\n"
+ "Cookie: \t0x%x (%d)\n",
+ desc->size, desc->cookie, desc->cookie);
+
+ if (desc->iface_fns) {
+ printf ("Device Function Table @ 0x%p\n", desc->iface_fns);
+ switch (desc->family) {
+ case Altera_ACEX1K:
+ case Altera_CYC2:
+#if defined(CONFIG_FPGA_ACEX1K)
+ ACEX1K_info (desc);
+#elif defined(CONFIG_FPGA_CYCLON2)
+ CYC2_info (desc);
+#else
+ /* just in case */
+ printf ("%s: No support for ACEX1K devices.\n",
+ __FUNCTION__);
+#endif
+ break;
+#if defined(CONFIG_FPGA_STRATIX_II)
+ case Altera_StratixII:
+ StratixII_info (desc);
+ break;
+#endif
+ /* Add new family types here */
+ default:
+ /* we don't need a message here - we give one up above */
+ break;
+ }
+ } else {
+ printf ("No Device Function Table.\n");
+ }
+
+ ret_val = FPGA_SUCCESS;
+ } else {
+ printf ("%s: Invalid device descriptor\n", __FUNCTION__);
+ }
+
+ return ret_val;
+}
+
+int altera_reloc( Altera_desc *desc, ulong reloc_offset)
+{
+ int ret_val = FPGA_FAIL; /* assume a failure */
+
+ if (!altera_validate (desc, (char *)__FUNCTION__)) {
+ printf ("%s: Invalid device descriptor\n", __FUNCTION__);
+ } else {
+ switch (desc->family) {
+ case Altera_ACEX1K:
+#if defined(CONFIG_FPGA_ACEX1K)
+ ret_val = ACEX1K_reloc (desc, reloc_offset);
+#else
+ printf ("%s: No support for ACEX devices.\n",
+ __FUNCTION__);
+#endif
+ break;
+#if defined(CONFIG_FPGA_STRATIX_II)
+ case Altera_StratixII:
+ ret_val = StratixII_reloc (desc, reloc_offset);
+ break;
+#endif
+ case Altera_CYC2:
+#if defined(CONFIG_FPGA_CYCLON2)
+ ret_val = CYC2_reloc (desc, reloc_offset);
+#else
+ printf ("%s: No support for CYCLON II devices.\n",
+ __FUNCTION__);
+#endif
+ break;
+ /* Add new family types here */
+ default:
+ printf ("%s: Unsupported family type, %d\n",
+ __FUNCTION__, desc->family);
+ }
+ }
+
+ return ret_val;
+}
+
+/* ------------------------------------------------------------------------- */
+
+static int altera_validate (Altera_desc * desc, const char *fn)
+{
+ int ret_val = FALSE;
+
+ if (desc) {
+ if ((desc->family > min_altera_type) &&
+ (desc->family < max_altera_type)) {
+ if ((desc->iface > min_altera_iface_type) &&
+ (desc->iface < max_altera_iface_type)) {
+ if (desc->size) {
+ ret_val = TRUE;
+ } else {
+ printf ("%s: NULL part size\n", fn);
+ }
+ } else {
+ printf ("%s: Invalid Interface type, %d\n",
+ fn, desc->iface);
+ }
+ } else {
+ printf ("%s: Invalid family type, %d\n", fn, desc->family);
+ }
+ } else {
+ printf ("%s: NULL descriptor!\n", fn);
+ }
+
+ return ret_val;
+}
+
+/* ------------------------------------------------------------------------- */
diff --git a/drivers/fpga/cyclon2.c b/drivers/fpga/cyclon2.c
new file mode 100644
index 000000000..3ed64b279
--- /dev/null
+++ b/drivers/fpga/cyclon2.c
@@ -0,0 +1,301 @@
+/*
+ * (C) Copyright 2006
+ * Heiko Schocher, hs@denx.de
+ * Based on ACE1XK.c
+ *
+ * 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
+ *
+ */
+
+#include <common.h> /* core U-Boot definitions */
+#include <altera.h>
+#include <ACEX1K.h> /* ACEX device family */
+
+/* Define FPGA_DEBUG to get debug printf's */
+#ifdef FPGA_DEBUG
+#define PRINTF(fmt,args...) printf (fmt ,##args)
+#else
+#define PRINTF(fmt,args...)
+#endif
+
+/* Note: The assumption is that we cannot possibly run fast enough to
+ * overrun the device (the Slave Parallel mode can free run at 50MHz).
+ * If there is a need to operate slower, define CONFIG_FPGA_DELAY in
+ * the board config file to slow things down.
+ */
+#ifndef CONFIG_FPGA_DELAY
+#define CONFIG_FPGA_DELAY()
+#endif
+
+#ifndef CONFIG_SYS_FPGA_WAIT
+#define CONFIG_SYS_FPGA_WAIT CONFIG_SYS_HZ/10 /* 100 ms */
+#endif
+
+static int CYC2_ps_load( Altera_desc *desc, void *buf, size_t bsize );
+static int CYC2_ps_dump( Altera_desc *desc, void *buf, size_t bsize );
+/* static int CYC2_ps_info( Altera_desc *desc ); */
+static int CYC2_ps_reloc( Altera_desc *desc, ulong reloc_offset );
+
+/* ------------------------------------------------------------------------- */
+/* CYCLON2 Generic Implementation */
+int CYC2_load (Altera_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL;
+
+ switch (desc->iface) {
+ case passive_serial:
+ PRINTF ("%s: Launching Passive Serial Loader\n", __FUNCTION__);
+ ret_val = CYC2_ps_load (desc, buf, bsize);
+ break;
+
+ /* Add new interface types here */
+
+ default:
+ printf ("%s: Unsupported interface type, %d\n",
+ __FUNCTION__, desc->iface);
+ }
+
+ return ret_val;
+}
+
+int CYC2_dump (Altera_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL;
+
+ switch (desc->iface) {
+ case passive_serial:
+ PRINTF ("%s: Launching Passive Serial Dump\n", __FUNCTION__);
+ ret_val = CYC2_ps_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 CYC2_info( Altera_desc *desc )
+{
+ return FPGA_SUCCESS;
+}
+
+int CYC2_reloc (Altera_desc * desc, ulong reloc_offset)
+{
+ int ret_val = FPGA_FAIL; /* assume a failure */
+
+ if (desc->family != Altera_CYC2) {
+ printf ("%s: Unsupported family type, %d\n",
+ __FUNCTION__, desc->family);
+ return FPGA_FAIL;
+ } else
+ switch (desc->iface) {
+ case passive_serial:
+ ret_val = CYC2_ps_reloc (desc, reloc_offset);
+ break;
+
+ /* Add new interface types here */
+
+ default:
+ printf ("%s: Unsupported interface type, %d\n",
+ __FUNCTION__, desc->iface);
+ }
+
+ return ret_val;
+}
+
+/* ------------------------------------------------------------------------- */
+/* CYCLON2 Passive Serial Generic Implementation */
+static int CYC2_ps_load (Altera_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL; /* assume the worst */
+ Altera_CYC2_Passive_Serial_fns *fn = desc->iface_fns;
+ int ret = 0;
+
+ PRINTF ("%s: start with interface functions @ 0x%p\n",
+ __FUNCTION__, fn);
+
+ if (fn) {
+ int cookie = desc->cookie; /* make a local copy */
+ unsigned long ts; /* timestamp */
+
+ PRINTF ("%s: Function Table:\n"
+ "ptr:\t0x%p\n"
+ "struct: 0x%p\n"
+ "config:\t0x%p\n"
+ "status:\t0x%p\n"
+ "write:\t0x%p\n"
+ "done:\t0x%p\n\n",
+ __FUNCTION__, &fn, fn, fn->config, fn->status,
+ fn->write, fn->done);
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ printf ("Loading FPGA Device %d...", cookie);
+#endif
+
+ /*
+ * Run the pre configuration function if there is one.
+ */
+ if (*fn->pre) {
+ (*fn->pre) (cookie);
+ }
+
+ /* Establish the initial state */
+ (*fn->config) (TRUE, TRUE, cookie); /* Assert nCONFIG */
+
+ udelay(2); /* T_cfg > 2us */
+
+ /* Wait for nSTATUS to be asserted */
+ ts = get_timer (0); /* get current time */
+ do {
+ CONFIG_FPGA_DELAY ();
+ if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */
+ puts ("** Timeout waiting for STATUS to go high.\n");
+ (*fn->abort) (cookie);
+ return FPGA_FAIL;
+ }
+ } while (!(*fn->status) (cookie));
+
+ /* Get ready for the burn */
+ CONFIG_FPGA_DELAY ();
+
+ ret = (*fn->write) (buf, bsize, TRUE, cookie);
+ if (ret) {
+ puts ("** Write failed.\n");
+ (*fn->abort) (cookie);
+ return FPGA_FAIL;
+ }
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ puts(" OK? ...");
+#endif
+
+ CONFIG_FPGA_DELAY ();
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ putc (' '); /* terminate the dotted line */
+#endif
+
+ /*
+ * Checking FPGA's CONF_DONE signal - correctly booted ?
+ */
+
+ if ( ! (*fn->done) (cookie) ) {
+ puts ("** Booting failed! CONF_DONE is still deasserted.\n");
+ (*fn->abort) (cookie);
+ return (FPGA_FAIL);
+ }
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ puts(" OK\n");
+#endif
+
+ ret_val = FPGA_SUCCESS;
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ if (ret_val == FPGA_SUCCESS) {
+ puts ("Done.\n");
+ }
+ else {
+ puts ("Fail.\n");
+ }
+#endif
+ (*fn->post) (cookie);
+
+ } else {
+ printf ("%s: NULL Interface function table!\n", __FUNCTION__);
+ }
+
+ return ret_val;
+}
+
+static int CYC2_ps_dump (Altera_desc * desc, void *buf, size_t bsize)
+{
+ /* Readback is only available through the Slave Parallel and */
+ /* boundary-scan interfaces. */
+ printf ("%s: Passive Serial Dumping is unavailable\n",
+ __FUNCTION__);
+ return FPGA_FAIL;
+}
+
+static int CYC2_ps_reloc (Altera_desc * desc, ulong reloc_offset)
+{
+ int ret_val = FPGA_FAIL; /* assume the worst */
+ Altera_CYC2_Passive_Serial_fns *fn_r, *fn =
+ (Altera_CYC2_Passive_Serial_fns *) (desc->iface_fns);
+
+ if (fn) {
+ ulong addr;
+
+ /* Get the relocated table address */
+ addr = (ulong) fn + reloc_offset;
+ fn_r = (Altera_CYC2_Passive_Serial_fns *) addr;
+
+ if (!fn_r->relocated) {
+
+ if (memcmp (fn_r, fn,
+ sizeof (Altera_CYC2_Passive_Serial_fns))
+ == 0) {
+ /* good copy of the table, fix the descriptor pointer */
+ desc->iface_fns = fn_r;
+ } else {
+ PRINTF ("%s: Invalid function table at 0x%p\n",
+ __FUNCTION__, fn_r);
+ return FPGA_FAIL;
+ }
+
+ PRINTF ("%s: Relocating descriptor at 0x%p\n", __FUNCTION__,
+ desc);
+
+ addr = (ulong) (fn->pre) + reloc_offset;
+ fn_r->pre = (Altera_pre_fn) addr;
+
+ addr = (ulong) (fn->config) + reloc_offset;
+ fn_r->config = (Altera_config_fn) addr;
+
+ addr = (ulong) (fn->status) + reloc_offset;
+ fn_r->status = (Altera_status_fn) addr;
+
+ addr = (ulong) (fn->done) + reloc_offset;
+ fn_r->done = (Altera_done_fn) addr;
+
+ addr = (ulong) (fn->write) + reloc_offset;
+ fn_r->write = (Altera_write_fn) addr;
+
+ addr = (ulong) (fn->abort) + reloc_offset;
+ fn_r->abort = (Altera_abort_fn) addr;
+
+ addr = (ulong) (fn->post) + reloc_offset;
+ fn_r->post = (Altera_post_fn) addr;
+
+ fn_r->relocated = TRUE;
+
+ } else {
+ /* this table has already been moved */
+ /* XXX - should check to see if the descriptor is correct */
+ desc->iface_fns = fn_r;
+ }
+
+ ret_val = FPGA_SUCCESS;
+ } else {
+ printf ("%s: NULL Interface function table!\n", __FUNCTION__);
+ }
+
+ return ret_val;
+}
diff --git a/drivers/fpga/fpga.c b/drivers/fpga/fpga.c
new file mode 100644
index 000000000..67a6c300c
--- /dev/null
+++ b/drivers/fpga/fpga.c
@@ -0,0 +1,335 @@
+/*
+ * (C) Copyright 2002
+ * 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
+ *
+ */
+
+/*
+ * Generic FPGA support
+ */
+#include <common.h> /* core U-Boot definitions */
+#include <xilinx.h> /* xilinx specific definitions */
+#include <altera.h> /* altera specific definitions */
+
+#if 0
+#define FPGA_DEBUG /* define FPGA_DEBUG to get debug messages */
+#endif
+
+/* Local definitions */
+#ifndef CONFIG_MAX_FPGA_DEVICES
+#define CONFIG_MAX_FPGA_DEVICES 5
+#endif
+
+/* Enable/Disable debug console messages */
+#ifdef FPGA_DEBUG
+#define PRINTF(fmt,args...) printf (fmt ,##args)
+#else
+#define PRINTF(fmt,args...)
+#endif
+
+/* Local static data */
+static ulong relocation_offset = 0;
+static int next_desc = FPGA_INVALID_DEVICE;
+static fpga_desc desc_table[CONFIG_MAX_FPGA_DEVICES];
+
+/* Local static functions */
+static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_get_desc( int devnum );
+static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_validate( int devnum, void *buf,
+ size_t bsize, char *fn );
+static int fpga_dev_info( int devnum );
+
+
+/* ------------------------------------------------------------------------- */
+
+/* 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 __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_get_desc( int devnum )
+{
+ fpga_desc *desc = (fpga_desc * )NULL;
+
+ if (( devnum >= 0 ) && (devnum < next_desc )) {
+ desc = &desc_table[devnum];
+ PRINTF( "%s: found fpga descriptor #%d @ 0x%p\n",
+ __FUNCTION__, devnum, desc );
+ }
+
+ return desc;
+}
+
+
+/* fpga_validate
+ * generic parameter checking code
+ */
+static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_validate( int devnum, void *buf,
+ size_t bsize, char *fn )
+{
+ 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 ) {
+ PRINTF( "%s: Device Descriptor @ 0x%p\n",
+ __FUNCTION__, 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 *)__FUNCTION__, "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 *)__FUNCTION__, "Altera devices" );
+#endif
+ break;
+ default:
+ printf( "%s: Invalid or unsupported device type %d\n",
+ __FUNCTION__, desc->devtype );
+ }
+ } else {
+ printf( "%s: Invalid device number %d\n",
+ __FUNCTION__, devnum );
+ }
+
+ return ret_val;
+}
+
+
+/* fpga_reloc
+ * generic multiplexing code
+ */
+int fpga_reloc( fpga_type devtype, void *desc, ulong reloc_off )
+{
+ int ret_val = FPGA_FAIL;
+
+ PRINTF( "%s: Relocating Device of type %d @ 0x%p with offset %lx\n",
+ __FUNCTION__, devtype, desc, reloc_off );
+
+ switch ( devtype ) {
+ case fpga_xilinx:
+#if defined(CONFIG_FPGA_XILINX)
+ ret_val = xilinx_reloc( desc, reloc_off );
+#else
+ fpga_no_sup( (char *)__FUNCTION__, "Xilinx devices" );
+#endif
+ break;
+ case fpga_altera:
+#if defined(CONFIG_FPGA_ALTERA)
+ ret_val = altera_reloc( desc, reloc_off );
+#else
+ fpga_no_sup( (char *)__FUNCTION__, "Altera devices" );
+#endif
+ break;
+ default:
+ printf( "%s: Invalid or unsupported device type %d\n",
+ __FUNCTION__, devtype );
+ }
+
+ 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( ulong reloc_off )
+{
+ relocation_offset = reloc_off;
+ next_desc = 0;
+ memset( desc_table, 0, sizeof(desc_table));
+
+ PRINTF( "%s: CONFIG_FPGA = 0x%x\n", __FUNCTION__, CONFIG_FPGA );
+}
+
+/* fpga_count
+ * Basic interface function to get the current number of devices available.
+ */
+int fpga_count( void )
+{
+ return next_desc;
+}
+
+/* fpga_add
+ * Attempts to relocate the device/board specific interface code
+ * to the proper RAM locations and adds 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", __FUNCTION__ );
+ } else if (( devtype > fpga_min_type ) && ( devtype < fpga_undefined )) {
+ if ( desc ) {
+ if ( next_desc < CONFIG_MAX_FPGA_DEVICES ) {
+ if ( fpga_reloc( devtype, desc, relocation_offset )
+ == FPGA_SUCCESS ) {
+ devnum = next_desc;
+ desc_table[next_desc].devtype = devtype;
+ desc_table[next_desc++].devdesc = desc;
+ } else {
+ printf( "%s: Unable to relocate device interface table!\n",
+ __FUNCTION__ );
+ }
+ } else {
+ printf( "%s: Exceeded Max FPGA device count\n", __FUNCTION__ );
+ }
+ } else {
+ printf( "%s: NULL device descriptor\n", __FUNCTION__ );
+ }
+ } else {
+ printf( "%s: Unsupported FPGA type %d\n", __FUNCTION__, devtype );
+ }
+
+ return devnum;
+}
+
+/*
+ * Generic multiplexing code
+ */
+int fpga_load( int devnum, void *buf, size_t bsize )
+{
+ int ret_val = FPGA_FAIL; /* assume failure */
+ fpga_desc * desc = fpga_validate( devnum, buf, bsize, (char *)__FUNCTION__ );
+
+ 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 *)__FUNCTION__, "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 *)__FUNCTION__, "Altera devices" );
+#endif
+ break;
+ default:
+ printf( "%s: Invalid or unsupported device type %d\n",
+ __FUNCTION__, desc->devtype );
+ }
+ }
+
+ return ret_val;
+}
+
+/* fpga_dump
+ * generic multiplexing code
+ */
+int fpga_dump( int devnum, void *buf, size_t bsize )
+{
+ int ret_val = FPGA_FAIL; /* assume failure */
+ fpga_desc * desc = fpga_validate( devnum, buf, bsize, (char *)__FUNCTION__ );
+
+ 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 *)__FUNCTION__, "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 *)__FUNCTION__, "Altera devices" );
+#endif
+ break;
+ default:
+ printf( "%s: Invalid or unsupported device type %d\n",
+ __FUNCTION__, 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", __FUNCTION__ );
+ return FPGA_FAIL;
+ }
+ }
+ else return fpga_dev_info( devnum );
+}
+
+/* ------------------------------------------------------------------------- */
diff --git a/drivers/fpga/spartan2.c b/drivers/fpga/spartan2.c
new file mode 100644
index 000000000..f5ba7fc04
--- /dev/null
+++ b/drivers/fpga/spartan2.c
@@ -0,0 +1,663 @@
+/*
+ * (C) Copyright 2002
+ * 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
+ *
+ */
+
+#include <common.h> /* core U-Boot definitions */
+#include <spartan2.h> /* Spartan-II device family */
+
+/* Define FPGA_DEBUG to get debug printf's */
+#ifdef FPGA_DEBUG
+#define PRINTF(fmt,args...) printf (fmt ,##args)
+#else
+#define PRINTF(fmt,args...)
+#endif
+
+#undef CONFIG_SYS_FPGA_CHECK_BUSY
+#undef CONFIG_SYS_FPGA_PROG_FEEDBACK
+
+/* Note: The assumption is that we cannot possibly run fast enough to
+ * overrun the device (the Slave Parallel mode can free run at 50MHz).
+ * If there is a need to operate slower, define CONFIG_FPGA_DELAY in
+ * the board config file to slow things down.
+ */
+#ifndef CONFIG_FPGA_DELAY
+#define CONFIG_FPGA_DELAY()
+#endif
+
+#ifndef CONFIG_SYS_FPGA_WAIT
+#define CONFIG_SYS_FPGA_WAIT CONFIG_SYS_HZ/100 /* 10 ms */
+#endif
+
+static int Spartan2_sp_load( Xilinx_desc *desc, void *buf, size_t bsize );
+static int Spartan2_sp_dump( Xilinx_desc *desc, void *buf, size_t bsize );
+/* static int Spartan2_sp_info( Xilinx_desc *desc ); */
+static int Spartan2_sp_reloc( Xilinx_desc *desc, ulong reloc_offset );
+
+static int Spartan2_ss_load( Xilinx_desc *desc, void *buf, size_t bsize );
+static int Spartan2_ss_dump( Xilinx_desc *desc, void *buf, size_t bsize );
+/* static int Spartan2_ss_info( Xilinx_desc *desc ); */
+static int Spartan2_ss_reloc( Xilinx_desc *desc, ulong reloc_offset );
+
+/* ------------------------------------------------------------------------- */
+/* Spartan-II Generic Implementation */
+int Spartan2_load (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL;
+
+ switch (desc->iface) {
+ case slave_serial:
+ PRINTF ("%s: Launching Slave Serial Load\n", __FUNCTION__);
+ ret_val = Spartan2_ss_load (desc, buf, bsize);
+ break;
+
+ case slave_parallel:
+ PRINTF ("%s: Launching Slave Parallel Load\n", __FUNCTION__);
+ ret_val = Spartan2_sp_load (desc, buf, bsize);
+ break;
+
+ default:
+ printf ("%s: Unsupported interface type, %d\n",
+ __FUNCTION__, desc->iface);
+ }
+
+ return ret_val;
+}
+
+int Spartan2_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL;
+
+ switch (desc->iface) {
+ case slave_serial:
+ PRINTF ("%s: Launching Slave Serial Dump\n", __FUNCTION__);
+ ret_val = Spartan2_ss_dump (desc, buf, bsize);
+ break;
+
+ case slave_parallel:
+ PRINTF ("%s: Launching Slave Parallel Dump\n", __FUNCTION__);
+ ret_val = Spartan2_sp_dump (desc, buf, bsize);
+ break;
+
+ default:
+ printf ("%s: Unsupported interface type, %d\n",
+ __FUNCTION__, desc->iface);
+ }
+
+ return ret_val;
+}
+
+int Spartan2_info( Xilinx_desc *desc )
+{
+ return FPGA_SUCCESS;
+}
+
+
+int Spartan2_reloc (Xilinx_desc * desc, ulong reloc_offset)
+{
+ int ret_val = FPGA_FAIL; /* assume a failure */
+
+ if (desc->family != Xilinx_Spartan2) {
+ printf ("%s: Unsupported family type, %d\n",
+ __FUNCTION__, desc->family);
+ return FPGA_FAIL;
+ } else
+ switch (desc->iface) {
+ case slave_serial:
+ ret_val = Spartan2_ss_reloc (desc, reloc_offset);
+ break;
+
+ case slave_parallel:
+ ret_val = Spartan2_sp_reloc (desc, reloc_offset);
+ break;
+
+ default:
+ printf ("%s: Unsupported interface type, %d\n",
+ __FUNCTION__, desc->iface);
+ }
+
+ return ret_val;
+}
+
+
+/* ------------------------------------------------------------------------- */
+/* Spartan-II Slave Parallel Generic Implementation */
+
+static int Spartan2_sp_load (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL; /* assume the worst */
+ Xilinx_Spartan2_Slave_Parallel_fns *fn = desc->iface_fns;
+
+ PRINTF ("%s: start with interface functions @ 0x%p\n",
+ __FUNCTION__, fn);
+
+ if (fn) {
+ size_t bytecount = 0;
+ unsigned char *data = (unsigned char *) buf;
+ int cookie = desc->cookie; /* make a local copy */
+ unsigned long ts; /* timestamp */
+
+ PRINTF ("%s: Function Table:\n"
+ "ptr:\t0x%p\n"
+ "struct: 0x%p\n"
+ "pre: 0x%p\n"
+ "pgm:\t0x%p\n"
+ "init:\t0x%p\n"
+ "err:\t0x%p\n"
+ "clk:\t0x%p\n"
+ "cs:\t0x%p\n"
+ "wr:\t0x%p\n"
+ "read data:\t0x%p\n"
+ "write data:\t0x%p\n"
+ "busy:\t0x%p\n"
+ "abort:\t0x%p\n",
+ "post:\t0x%p\n\n",
+ __FUNCTION__, &fn, fn, fn->pre, fn->pgm, fn->init, fn->err,
+ fn->clk, fn->cs, fn->wr, fn->rdata, fn->wdata, fn->busy,
+ fn->abort, fn->post);
+
+ /*
+ * This code is designed to emulate the "Express Style"
+ * Continuous Data Loading in Slave Parallel Mode for
+ * the Spartan-II Family.
+ */
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ printf ("Loading FPGA Device %d...\n", cookie);
+#endif
+ /*
+ * Run the pre configuration function if there is one.
+ */
+ if (*fn->pre) {
+ (*fn->pre) (cookie);
+ }
+
+ /* Establish the initial state */
+ (*fn->pgm) (TRUE, TRUE, cookie); /* Assert the program, commit */
+
+ /* Get ready for the burn */
+ CONFIG_FPGA_DELAY ();
+ (*fn->pgm) (FALSE, TRUE, cookie); /* Deassert the program, commit */
+
+ ts = get_timer (0); /* get current time */
+ /* Now wait for INIT and BUSY to go high */
+ do {
+ CONFIG_FPGA_DELAY ();
+ if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */
+ puts ("** Timeout waiting for INIT to clear.\n");
+ (*fn->abort) (cookie); /* abort the burn */
+ return FPGA_FAIL;
+ }
+ } while ((*fn->init) (cookie) && (*fn->busy) (cookie));
+
+ (*fn->wr) (TRUE, TRUE, cookie); /* Assert write, commit */
+ (*fn->cs) (TRUE, TRUE, cookie); /* Assert chip select, commit */
+ (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */
+
+ /* Load the data */
+ while (bytecount < bsize) {
+ /* XXX - do we check for an Ctrl-C press in here ??? */
+ /* XXX - Check the error bit? */
+
+ (*fn->wdata) (data[bytecount++], TRUE, cookie); /* write the data */
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */
+
+#ifdef CONFIG_SYS_FPGA_CHECK_BUSY
+ ts = get_timer (0); /* get current time */
+ while ((*fn->busy) (cookie)) {
+ /* XXX - we should have a check in here somewhere to
+ * make sure we aren't busy forever... */
+
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */
+
+ if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */
+ puts ("** Timeout waiting for BUSY to clear.\n");
+ (*fn->abort) (cookie); /* abort the burn */
+ return FPGA_FAIL;
+ }
+ }
+#endif
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ if (bytecount % (bsize / 40) == 0)
+ putc ('.'); /* let them know we are alive */
+#endif
+ }
+
+ CONFIG_FPGA_DELAY ();
+ (*fn->cs) (FALSE, TRUE, cookie); /* Deassert the chip select */
+ (*fn->wr) (FALSE, TRUE, cookie); /* Deassert the write pin */
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ putc ('\n'); /* terminate the dotted line */
+#endif
+
+ /* now check for done signal */
+ ts = get_timer (0); /* get current time */
+ ret_val = FPGA_SUCCESS;
+ while ((*fn->done) (cookie) == FPGA_FAIL) {
+ /* XXX - we should have a check in here somewhere to
+ * make sure we aren't busy forever... */
+
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */
+
+ if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */
+ puts ("** Timeout waiting for DONE to clear.\n");
+ (*fn->abort) (cookie); /* abort the burn */
+ ret_val = FPGA_FAIL;
+ break;
+ }
+ }
+
+ if (ret_val == FPGA_SUCCESS) {
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ puts ("Done.\n");
+#endif
+ }
+ /*
+ * Run the post configuration function if there is one.
+ */
+ if (*fn->post) {
+ (*fn->post) (cookie);
+ }
+
+ else {
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ puts ("Fail.\n");
+#endif
+ }
+
+ } else {
+ printf ("%s: NULL Interface function table!\n", __FUNCTION__);
+ }
+
+ return ret_val;
+}
+
+static int Spartan2_sp_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL; /* assume the worst */
+ Xilinx_Spartan2_Slave_Parallel_fns *fn = desc->iface_fns;
+
+ if (fn) {
+ unsigned char *data = (unsigned char *) buf;
+ size_t bytecount = 0;
+ int cookie = desc->cookie; /* make a local copy */
+
+ printf ("Starting Dump of FPGA Device %d...\n", cookie);
+
+ (*fn->cs) (TRUE, TRUE, cookie); /* Assert chip select, commit */
+ (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */
+
+ /* dump the data */
+ while (bytecount < bsize) {
+ /* XXX - do we check for an Ctrl-C press in here ??? */
+
+ (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */
+ (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */
+ (*fn->rdata) (&(data[bytecount++]), cookie); /* read the data */
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ if (bytecount % (bsize / 40) == 0)
+ putc ('.'); /* let them know we are alive */
+#endif
+ }
+
+ (*fn->cs) (FALSE, FALSE, cookie); /* Deassert the chip select */
+ (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */
+ (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ putc ('\n'); /* terminate the dotted line */
+#endif
+ puts ("Done.\n");
+
+ /* XXX - checksum the data? */
+ } else {
+ printf ("%s: NULL Interface function table!\n", __FUNCTION__);
+ }
+
+ return ret_val;
+}
+
+
+static int Spartan2_sp_reloc (Xilinx_desc * desc, ulong reloc_offset)
+{
+ int ret_val = FPGA_FAIL; /* assume the worst */
+ Xilinx_Spartan2_Slave_Parallel_fns *fn_r, *fn =
+ (Xilinx_Spartan2_Slave_Parallel_fns *) (desc->iface_fns);
+
+ if (fn) {
+ ulong addr;
+
+ /* Get the relocated table address */
+ addr = (ulong) fn + reloc_offset;
+ fn_r = (Xilinx_Spartan2_Slave_Parallel_fns *) addr;
+
+ if (!fn_r->relocated) {
+
+ if (memcmp (fn_r, fn,
+ sizeof (Xilinx_Spartan2_Slave_Parallel_fns))
+ == 0) {
+ /* good copy of the table, fix the descriptor pointer */
+ desc->iface_fns = fn_r;
+ } else {
+ PRINTF ("%s: Invalid function table at 0x%p\n",
+ __FUNCTION__, fn_r);
+ return FPGA_FAIL;
+ }
+
+ PRINTF ("%s: Relocating descriptor at 0x%p\n", __FUNCTION__,
+ desc);
+
+ addr = (ulong) (fn->pre) + reloc_offset;
+ fn_r->pre = (Xilinx_pre_fn) addr;
+
+ addr = (ulong) (fn->pgm) + reloc_offset;
+ fn_r->pgm = (Xilinx_pgm_fn) addr;
+
+ addr = (ulong) (fn->init) + reloc_offset;
+ fn_r->init = (Xilinx_init_fn) addr;
+
+ addr = (ulong) (fn->done) + reloc_offset;
+ fn_r->done = (Xilinx_done_fn) addr;
+
+ addr = (ulong) (fn->clk) + reloc_offset;
+ fn_r->clk = (Xilinx_clk_fn) addr;
+
+ addr = (ulong) (fn->err) + reloc_offset;
+ fn_r->err = (Xilinx_err_fn) addr;
+
+ addr = (ulong) (fn->cs) + reloc_offset;
+ fn_r->cs = (Xilinx_cs_fn) addr;
+
+ addr = (ulong) (fn->wr) + reloc_offset;
+ fn_r->wr = (Xilinx_wr_fn) addr;
+
+ addr = (ulong) (fn->rdata) + reloc_offset;
+ fn_r->rdata = (Xilinx_rdata_fn) addr;
+
+ addr = (ulong) (fn->wdata) + reloc_offset;
+ fn_r->wdata = (Xilinx_wdata_fn) addr;
+
+ addr = (ulong) (fn->busy) + reloc_offset;
+ fn_r->busy = (Xilinx_busy_fn) addr;
+
+ addr = (ulong) (fn->abort) + reloc_offset;
+ fn_r->abort = (Xilinx_abort_fn) addr;
+
+ addr = (ulong) (fn->post) + reloc_offset;
+ fn_r->post = (Xilinx_post_fn) addr;
+
+ fn_r->relocated = TRUE;
+
+ } else {
+ /* this table has already been moved */
+ /* XXX - should check to see if the descriptor is correct */
+ desc->iface_fns = fn_r;
+ }
+
+ ret_val = FPGA_SUCCESS;
+ } else {
+ printf ("%s: NULL Interface function table!\n", __FUNCTION__);
+ }
+
+ return ret_val;
+
+}
+
+/* ------------------------------------------------------------------------- */
+
+static int Spartan2_ss_load (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL; /* assume the worst */
+ Xilinx_Spartan2_Slave_Serial_fns *fn = desc->iface_fns;
+ int i;
+ unsigned char val;
+
+ PRINTF ("%s: start with interface functions @ 0x%p\n",
+ __FUNCTION__, fn);
+
+ if (fn) {
+ size_t bytecount = 0;
+ unsigned char *data = (unsigned char *) buf;
+ int cookie = desc->cookie; /* make a local copy */
+ unsigned long ts; /* timestamp */
+
+ PRINTF ("%s: Function Table:\n"
+ "ptr:\t0x%p\n"
+ "struct: 0x%p\n"
+ "pgm:\t0x%p\n"
+ "init:\t0x%p\n"
+ "clk:\t0x%p\n"
+ "wr:\t0x%p\n"
+ "done:\t0x%p\n\n",
+ __FUNCTION__, &fn, fn, fn->pgm, fn->init,
+ fn->clk, fn->wr, fn->done);
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ printf ("Loading FPGA Device %d...\n", cookie);
+#endif
+
+ /*
+ * Run the pre configuration function if there is one.
+ */
+ if (*fn->pre) {
+ (*fn->pre) (cookie);
+ }
+
+ /* Establish the initial state */
+ (*fn->pgm) (TRUE, TRUE, cookie); /* Assert the program, commit */
+
+ /* Wait for INIT state (init low) */
+ ts = get_timer (0); /* get current time */
+ do {
+ CONFIG_FPGA_DELAY ();
+ if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */
+ puts ("** Timeout waiting for INIT to start.\n");
+ return FPGA_FAIL;
+ }
+ } while (!(*fn->init) (cookie));
+
+ /* Get ready for the burn */
+ CONFIG_FPGA_DELAY ();
+ (*fn->pgm) (FALSE, TRUE, cookie); /* Deassert the program, commit */
+
+ ts = get_timer (0); /* get current time */
+ /* Now wait for INIT to go high */
+ do {
+ CONFIG_FPGA_DELAY ();
+ if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */
+ puts ("** Timeout waiting for INIT to clear.\n");
+ return FPGA_FAIL;
+ }
+ } while ((*fn->init) (cookie));
+
+ /* Load the data */
+ while (bytecount < bsize) {
+
+ /* Xilinx detects an error if INIT goes low (active)
+ while DONE is low (inactive) */
+ if ((*fn->done) (cookie) == 0 && (*fn->init) (cookie)) {
+ puts ("** CRC error during FPGA load.\n");
+ return (FPGA_FAIL);
+ }
+ val = data [bytecount ++];
+ i = 8;
+ do {
+ /* Deassert the clock */
+ (*fn->clk) (FALSE, TRUE, cookie);
+ CONFIG_FPGA_DELAY ();
+ /* Write data */
+ (*fn->wr) ((val & 0x80), TRUE, cookie);
+ CONFIG_FPGA_DELAY ();
+ /* Assert the clock */
+ (*fn->clk) (TRUE, TRUE, cookie);
+ CONFIG_FPGA_DELAY ();
+ val <<= 1;
+ i --;
+ } while (i > 0);
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ if (bytecount % (bsize / 40) == 0)
+ putc ('.'); /* let them know we are alive */
+#endif
+ }
+
+ CONFIG_FPGA_DELAY ();
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ putc ('\n'); /* terminate the dotted line */
+#endif
+
+ /* now check for done signal */
+ ts = get_timer (0); /* get current time */
+ ret_val = FPGA_SUCCESS;
+ (*fn->wr) (TRUE, TRUE, cookie);
+
+ while (! (*fn->done) (cookie)) {
+ /* XXX - we should have a check in here somewhere to
+ * make sure we aren't busy forever... */
+
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */
+
+ putc ('*');
+
+ if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */
+ puts ("** Timeout waiting for DONE to clear.\n");
+ ret_val = FPGA_FAIL;
+ break;
+ }
+ }
+ putc ('\n'); /* terminate the dotted line */
+
+ /*
+ * Run the post configuration function if there is one.
+ */
+ if (*fn->post) {
+ (*fn->post) (cookie);
+ }
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ if (ret_val == FPGA_SUCCESS) {
+ puts ("Done.\n");
+ }
+ else {
+ puts ("Fail.\n");
+ }
+#endif
+
+ } else {
+ printf ("%s: NULL Interface function table!\n", __FUNCTION__);
+ }
+
+ return ret_val;
+}
+
+static int Spartan2_ss_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ /* Readback is only available through the Slave Parallel and */
+ /* boundary-scan interfaces. */
+ printf ("%s: Slave Serial Dumping is unavailable\n",
+ __FUNCTION__);
+ return FPGA_FAIL;
+}
+
+static int Spartan2_ss_reloc (Xilinx_desc * desc, ulong reloc_offset)
+{
+ int ret_val = FPGA_FAIL; /* assume the worst */
+ Xilinx_Spartan2_Slave_Serial_fns *fn_r, *fn =
+ (Xilinx_Spartan2_Slave_Serial_fns *) (desc->iface_fns);
+
+ if (fn) {
+ ulong addr;
+
+ /* Get the relocated table address */
+ addr = (ulong) fn + reloc_offset;
+ fn_r = (Xilinx_Spartan2_Slave_Serial_fns *) addr;
+
+ if (!fn_r->relocated) {
+
+ if (memcmp (fn_r, fn,
+ sizeof (Xilinx_Spartan2_Slave_Serial_fns))
+ == 0) {
+ /* good copy of the table, fix the descriptor pointer */
+ desc->iface_fns = fn_r;
+ } else {
+ PRINTF ("%s: Invalid function table at 0x%p\n",
+ __FUNCTION__, fn_r);
+ return FPGA_FAIL;
+ }
+
+ PRINTF ("%s: Relocating descriptor at 0x%p\n", __FUNCTION__,
+ desc);
+
+ if (fn->pre) {
+ addr = (ulong) (fn->pre) + reloc_offset;
+ fn_r->pre = (Xilinx_pre_fn) addr;
+ }
+
+ addr = (ulong) (fn->pgm) + reloc_offset;
+ fn_r->pgm = (Xilinx_pgm_fn) addr;
+
+ addr = (ulong) (fn->init) + reloc_offset;
+ fn_r->init = (Xilinx_init_fn) addr;
+
+ addr = (ulong) (fn->done) + reloc_offset;
+ fn_r->done = (Xilinx_done_fn) addr;
+
+ addr = (ulong) (fn->clk) + reloc_offset;
+ fn_r->clk = (Xilinx_clk_fn) addr;
+
+ addr = (ulong) (fn->wr) + reloc_offset;
+ fn_r->wr = (Xilinx_wr_fn) addr;
+
+ if (fn->post) {
+ addr = (ulong) (fn->post) + reloc_offset;
+ fn_r->post = (Xilinx_post_fn) addr;
+ }
+
+ fn_r->relocated = TRUE;
+
+ } else {
+ /* this table has already been moved */
+ /* XXX - should check to see if the descriptor is correct */
+ desc->iface_fns = fn_r;
+ }
+
+ ret_val = FPGA_SUCCESS;
+ } else {
+ printf ("%s: NULL Interface function table!\n", __FUNCTION__);
+ }
+
+ return ret_val;
+
+}
diff --git a/drivers/fpga/spartan3.c b/drivers/fpga/spartan3.c
new file mode 100644
index 000000000..9ce41f1d2
--- /dev/null
+++ b/drivers/fpga/spartan3.c
@@ -0,0 +1,668 @@
+/*
+ * (C) Copyright 2002
+ * 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
+ *
+ */
+
+/*
+ * Configuration support for Xilinx Spartan3 devices. Based
+ * on spartan2.c (Rich Ireland, rireland@enterasys.com).
+ */
+
+#include <common.h> /* core U-Boot definitions */
+#include <spartan3.h> /* Spartan-II device family */
+
+/* Define FPGA_DEBUG to get debug printf's */
+#ifdef FPGA_DEBUG
+#define PRINTF(fmt,args...) printf (fmt ,##args)
+#else
+#define PRINTF(fmt,args...)
+#endif
+
+#undef CONFIG_SYS_FPGA_CHECK_BUSY
+#undef CONFIG_SYS_FPGA_PROG_FEEDBACK
+
+/* Note: The assumption is that we cannot possibly run fast enough to
+ * overrun the device (the Slave Parallel mode can free run at 50MHz).
+ * If there is a need to operate slower, define CONFIG_FPGA_DELAY in
+ * the board config file to slow things down.
+ */
+#ifndef CONFIG_FPGA_DELAY
+#define CONFIG_FPGA_DELAY()
+#endif
+
+#ifndef CONFIG_SYS_FPGA_WAIT
+#define CONFIG_SYS_FPGA_WAIT CONFIG_SYS_HZ/100 /* 10 ms */
+#endif
+
+static int Spartan3_sp_load( Xilinx_desc *desc, void *buf, size_t bsize );
+static int Spartan3_sp_dump( Xilinx_desc *desc, void *buf, size_t bsize );
+/* static int Spartan3_sp_info( Xilinx_desc *desc ); */
+static int Spartan3_sp_reloc( Xilinx_desc *desc, ulong reloc_offset );
+
+static int Spartan3_ss_load( Xilinx_desc *desc, void *buf, size_t bsize );
+static int Spartan3_ss_dump( Xilinx_desc *desc, void *buf, size_t bsize );
+/* static int Spartan3_ss_info( Xilinx_desc *desc ); */
+static int Spartan3_ss_reloc( Xilinx_desc *desc, ulong reloc_offset );
+
+/* ------------------------------------------------------------------------- */
+/* Spartan-II Generic Implementation */
+int Spartan3_load (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL;
+
+ switch (desc->iface) {
+ case slave_serial:
+ PRINTF ("%s: Launching Slave Serial Load\n", __FUNCTION__);
+ ret_val = Spartan3_ss_load (desc, buf, bsize);
+ break;
+
+ case slave_parallel:
+ PRINTF ("%s: Launching Slave Parallel Load\n", __FUNCTION__);
+ ret_val = Spartan3_sp_load (desc, buf, bsize);
+ break;
+
+ default:
+ printf ("%s: Unsupported interface type, %d\n",
+ __FUNCTION__, desc->iface);
+ }
+
+ return ret_val;
+}
+
+int Spartan3_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL;
+
+ switch (desc->iface) {
+ case slave_serial:
+ PRINTF ("%s: Launching Slave Serial Dump\n", __FUNCTION__);
+ ret_val = Spartan3_ss_dump (desc, buf, bsize);
+ break;
+
+ case slave_parallel:
+ PRINTF ("%s: Launching Slave Parallel Dump\n", __FUNCTION__);
+ ret_val = Spartan3_sp_dump (desc, buf, bsize);
+ break;
+
+ default:
+ printf ("%s: Unsupported interface type, %d\n",
+ __FUNCTION__, desc->iface);
+ }
+
+ return ret_val;
+}
+
+int Spartan3_info( Xilinx_desc *desc )
+{
+ return FPGA_SUCCESS;
+}
+
+
+int Spartan3_reloc (Xilinx_desc * desc, ulong reloc_offset)
+{
+ int ret_val = FPGA_FAIL; /* assume a failure */
+
+ if (desc->family != Xilinx_Spartan3) {
+ printf ("%s: Unsupported family type, %d\n",
+ __FUNCTION__, desc->family);
+ return FPGA_FAIL;
+ } else
+ switch (desc->iface) {
+ case slave_serial:
+ ret_val = Spartan3_ss_reloc (desc, reloc_offset);
+ break;
+
+ case slave_parallel:
+ ret_val = Spartan3_sp_reloc (desc, reloc_offset);
+ break;
+
+ default:
+ printf ("%s: Unsupported interface type, %d\n",
+ __FUNCTION__, desc->iface);
+ }
+
+ return ret_val;
+}
+
+
+/* ------------------------------------------------------------------------- */
+/* Spartan-II Slave Parallel Generic Implementation */
+
+static int Spartan3_sp_load (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL; /* assume the worst */
+ Xilinx_Spartan3_Slave_Parallel_fns *fn = desc->iface_fns;
+
+ PRINTF ("%s: start with interface functions @ 0x%p\n",
+ __FUNCTION__, fn);
+
+ if (fn) {
+ size_t bytecount = 0;
+ unsigned char *data = (unsigned char *) buf;
+ int cookie = desc->cookie; /* make a local copy */
+ unsigned long ts; /* timestamp */
+
+ PRINTF ("%s: Function Table:\n"
+ "ptr:\t0x%p\n"
+ "struct: 0x%p\n"
+ "pre: 0x%p\n"
+ "pgm:\t0x%p\n"
+ "init:\t0x%p\n"
+ "err:\t0x%p\n"
+ "clk:\t0x%p\n"
+ "cs:\t0x%p\n"
+ "wr:\t0x%p\n"
+ "read data:\t0x%p\n"
+ "write data:\t0x%p\n"
+ "busy:\t0x%p\n"
+ "abort:\t0x%p\n",
+ "post:\t0x%p\n\n",
+ __FUNCTION__, &fn, fn, fn->pre, fn->pgm, fn->init, fn->err,
+ fn->clk, fn->cs, fn->wr, fn->rdata, fn->wdata, fn->busy,
+ fn->abort, fn->post);
+
+ /*
+ * This code is designed to emulate the "Express Style"
+ * Continuous Data Loading in Slave Parallel Mode for
+ * the Spartan-II Family.
+ */
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ printf ("Loading FPGA Device %d...\n", cookie);
+#endif
+ /*
+ * Run the pre configuration function if there is one.
+ */
+ if (*fn->pre) {
+ (*fn->pre) (cookie);
+ }
+
+ /* Establish the initial state */
+ (*fn->pgm) (TRUE, TRUE, cookie); /* Assert the program, commit */
+
+ /* Get ready for the burn */
+ CONFIG_FPGA_DELAY ();
+ (*fn->pgm) (FALSE, TRUE, cookie); /* Deassert the program, commit */
+
+ ts = get_timer (0); /* get current time */
+ /* Now wait for INIT and BUSY to go high */
+ do {
+ CONFIG_FPGA_DELAY ();
+ if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */
+ puts ("** Timeout waiting for INIT to clear.\n");
+ (*fn->abort) (cookie); /* abort the burn */
+ return FPGA_FAIL;
+ }
+ } while ((*fn->init) (cookie) && (*fn->busy) (cookie));
+
+ (*fn->wr) (TRUE, TRUE, cookie); /* Assert write, commit */
+ (*fn->cs) (TRUE, TRUE, cookie); /* Assert chip select, commit */
+ (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */
+
+ /* Load the data */
+ while (bytecount < bsize) {
+ /* XXX - do we check for an Ctrl-C press in here ??? */
+ /* XXX - Check the error bit? */
+
+ (*fn->wdata) (data[bytecount++], TRUE, cookie); /* write the data */
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */
+
+#ifdef CONFIG_SYS_FPGA_CHECK_BUSY
+ ts = get_timer (0); /* get current time */
+ while ((*fn->busy) (cookie)) {
+ /* XXX - we should have a check in here somewhere to
+ * make sure we aren't busy forever... */
+
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */
+
+ if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */
+ puts ("** Timeout waiting for BUSY to clear.\n");
+ (*fn->abort) (cookie); /* abort the burn */
+ return FPGA_FAIL;
+ }
+ }
+#endif
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ if (bytecount % (bsize / 40) == 0)
+ putc ('.'); /* let them know we are alive */
+#endif
+ }
+
+ CONFIG_FPGA_DELAY ();
+ (*fn->cs) (FALSE, TRUE, cookie); /* Deassert the chip select */
+ (*fn->wr) (FALSE, TRUE, cookie); /* Deassert the write pin */
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ putc ('\n'); /* terminate the dotted line */
+#endif
+
+ /* now check for done signal */
+ ts = get_timer (0); /* get current time */
+ ret_val = FPGA_SUCCESS;
+ while ((*fn->done) (cookie) == FPGA_FAIL) {
+ /* XXX - we should have a check in here somewhere to
+ * make sure we aren't busy forever... */
+
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */
+
+ if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */
+ puts ("** Timeout waiting for DONE to clear.\n");
+ (*fn->abort) (cookie); /* abort the burn */
+ ret_val = FPGA_FAIL;
+ break;
+ }
+ }
+
+ if (ret_val == FPGA_SUCCESS) {
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ puts ("Done.\n");
+#endif
+ }
+ /*
+ * Run the post configuration function if there is one.
+ */
+ if (*fn->post) {
+ (*fn->post) (cookie);
+ }
+
+ else {
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ puts ("Fail.\n");
+#endif
+ }
+
+ } else {
+ printf ("%s: NULL Interface function table!\n", __FUNCTION__);
+ }
+
+ return ret_val;
+}
+
+static int Spartan3_sp_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL; /* assume the worst */
+ Xilinx_Spartan3_Slave_Parallel_fns *fn = desc->iface_fns;
+
+ if (fn) {
+ unsigned char *data = (unsigned char *) buf;
+ size_t bytecount = 0;
+ int cookie = desc->cookie; /* make a local copy */
+
+ printf ("Starting Dump of FPGA Device %d...\n", cookie);
+
+ (*fn->cs) (TRUE, TRUE, cookie); /* Assert chip select, commit */
+ (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */
+
+ /* dump the data */
+ while (bytecount < bsize) {
+ /* XXX - do we check for an Ctrl-C press in here ??? */
+
+ (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */
+ (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */
+ (*fn->rdata) (&(data[bytecount++]), cookie); /* read the data */
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ if (bytecount % (bsize / 40) == 0)
+ putc ('.'); /* let them know we are alive */
+#endif
+ }
+
+ (*fn->cs) (FALSE, FALSE, cookie); /* Deassert the chip select */
+ (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */
+ (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ putc ('\n'); /* terminate the dotted line */
+#endif
+ puts ("Done.\n");
+
+ /* XXX - checksum the data? */
+ } else {
+ printf ("%s: NULL Interface function table!\n", __FUNCTION__);
+ }
+
+ return ret_val;
+}
+
+
+static int Spartan3_sp_reloc (Xilinx_desc * desc, ulong reloc_offset)
+{
+ int ret_val = FPGA_FAIL; /* assume the worst */
+ Xilinx_Spartan3_Slave_Parallel_fns *fn_r, *fn =
+ (Xilinx_Spartan3_Slave_Parallel_fns *) (desc->iface_fns);
+
+ if (fn) {
+ ulong addr;
+
+ /* Get the relocated table address */
+ addr = (ulong) fn + reloc_offset;
+ fn_r = (Xilinx_Spartan3_Slave_Parallel_fns *) addr;
+
+ if (!fn_r->relocated) {
+
+ if (memcmp (fn_r, fn,
+ sizeof (Xilinx_Spartan3_Slave_Parallel_fns))
+ == 0) {
+ /* good copy of the table, fix the descriptor pointer */
+ desc->iface_fns = fn_r;
+ } else {
+ PRINTF ("%s: Invalid function table at 0x%p\n",
+ __FUNCTION__, fn_r);
+ return FPGA_FAIL;
+ }
+
+ PRINTF ("%s: Relocating descriptor at 0x%p\n", __FUNCTION__,
+ desc);
+
+ addr = (ulong) (fn->pre) + reloc_offset;
+ fn_r->pre = (Xilinx_pre_fn) addr;
+
+ addr = (ulong) (fn->pgm) + reloc_offset;
+ fn_r->pgm = (Xilinx_pgm_fn) addr;
+
+ addr = (ulong) (fn->init) + reloc_offset;
+ fn_r->init = (Xilinx_init_fn) addr;
+
+ addr = (ulong) (fn->done) + reloc_offset;
+ fn_r->done = (Xilinx_done_fn) addr;
+
+ addr = (ulong) (fn->clk) + reloc_offset;
+ fn_r->clk = (Xilinx_clk_fn) addr;
+
+ addr = (ulong) (fn->err) + reloc_offset;
+ fn_r->err = (Xilinx_err_fn) addr;
+
+ addr = (ulong) (fn->cs) + reloc_offset;
+ fn_r->cs = (Xilinx_cs_fn) addr;
+
+ addr = (ulong) (fn->wr) + reloc_offset;
+ fn_r->wr = (Xilinx_wr_fn) addr;
+
+ addr = (ulong) (fn->rdata) + reloc_offset;
+ fn_r->rdata = (Xilinx_rdata_fn) addr;
+
+ addr = (ulong) (fn->wdata) + reloc_offset;
+ fn_r->wdata = (Xilinx_wdata_fn) addr;
+
+ addr = (ulong) (fn->busy) + reloc_offset;
+ fn_r->busy = (Xilinx_busy_fn) addr;
+
+ addr = (ulong) (fn->abort) + reloc_offset;
+ fn_r->abort = (Xilinx_abort_fn) addr;
+
+ addr = (ulong) (fn->post) + reloc_offset;
+ fn_r->post = (Xilinx_post_fn) addr;
+
+ fn_r->relocated = TRUE;
+
+ } else {
+ /* this table has already been moved */
+ /* XXX - should check to see if the descriptor is correct */
+ desc->iface_fns = fn_r;
+ }
+
+ ret_val = FPGA_SUCCESS;
+ } else {
+ printf ("%s: NULL Interface function table!\n", __FUNCTION__);
+ }
+
+ return ret_val;
+
+}
+
+/* ------------------------------------------------------------------------- */
+
+static int Spartan3_ss_load (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL; /* assume the worst */
+ Xilinx_Spartan3_Slave_Serial_fns *fn = desc->iface_fns;
+ int i;
+ unsigned char val;
+
+ PRINTF ("%s: start with interface functions @ 0x%p\n",
+ __FUNCTION__, fn);
+
+ if (fn) {
+ size_t bytecount = 0;
+ unsigned char *data = (unsigned char *) buf;
+ int cookie = desc->cookie; /* make a local copy */
+ unsigned long ts; /* timestamp */
+
+ PRINTF ("%s: Function Table:\n"
+ "ptr:\t0x%p\n"
+ "struct: 0x%p\n"
+ "pgm:\t0x%p\n"
+ "init:\t0x%p\n"
+ "clk:\t0x%p\n"
+ "wr:\t0x%p\n"
+ "done:\t0x%p\n\n",
+ __FUNCTION__, &fn, fn, fn->pgm, fn->init,
+ fn->clk, fn->wr, fn->done);
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ printf ("Loading FPGA Device %d...\n", cookie);
+#endif
+
+ /*
+ * Run the pre configuration function if there is one.
+ */
+ if (*fn->pre) {
+ (*fn->pre) (cookie);
+ }
+
+ /* Establish the initial state */
+ (*fn->pgm) (TRUE, TRUE, cookie); /* Assert the program, commit */
+
+ /* Wait for INIT state (init low) */
+ ts = get_timer (0); /* get current time */
+ do {
+ CONFIG_FPGA_DELAY ();
+ if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */
+ puts ("** Timeout waiting for INIT to start.\n");
+ return FPGA_FAIL;
+ }
+ } while (!(*fn->init) (cookie));
+
+ /* Get ready for the burn */
+ CONFIG_FPGA_DELAY ();
+ (*fn->pgm) (FALSE, TRUE, cookie); /* Deassert the program, commit */
+
+ ts = get_timer (0); /* get current time */
+ /* Now wait for INIT to go high */
+ do {
+ CONFIG_FPGA_DELAY ();
+ if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */
+ puts ("** Timeout waiting for INIT to clear.\n");
+ return FPGA_FAIL;
+ }
+ } while ((*fn->init) (cookie));
+
+ /* Load the data */
+ while (bytecount < bsize) {
+
+ /* Xilinx detects an error if INIT goes low (active)
+ while DONE is low (inactive) */
+ if ((*fn->done) (cookie) == 0 && (*fn->init) (cookie)) {
+ puts ("** CRC error during FPGA load.\n");
+ return (FPGA_FAIL);
+ }
+ val = data [bytecount ++];
+ i = 8;
+ do {
+ /* Deassert the clock */
+ (*fn->clk) (FALSE, TRUE, cookie);
+ CONFIG_FPGA_DELAY ();
+ /* Write data */
+ (*fn->wr) ((val & 0x80), TRUE, cookie);
+ CONFIG_FPGA_DELAY ();
+ /* Assert the clock */
+ (*fn->clk) (TRUE, TRUE, cookie);
+ CONFIG_FPGA_DELAY ();
+ val <<= 1;
+ i --;
+ } while (i > 0);
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ if (bytecount % (bsize / 40) == 0)
+ putc ('.'); /* let them know we are alive */
+#endif
+ }
+
+ CONFIG_FPGA_DELAY ();
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ putc ('\n'); /* terminate the dotted line */
+#endif
+
+ /* now check for done signal */
+ ts = get_timer (0); /* get current time */
+ ret_val = FPGA_SUCCESS;
+ (*fn->wr) (TRUE, TRUE, cookie);
+
+ while (! (*fn->done) (cookie)) {
+ /* XXX - we should have a check in here somewhere to
+ * make sure we aren't busy forever... */
+
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */
+
+ putc ('*');
+
+ if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */
+ puts ("** Timeout waiting for DONE to clear.\n");
+ ret_val = FPGA_FAIL;
+ break;
+ }
+ }
+ putc ('\n'); /* terminate the dotted line */
+
+ /*
+ * Run the post configuration function if there is one.
+ */
+ if (*fn->post) {
+ (*fn->post) (cookie);
+ }
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ if (ret_val == FPGA_SUCCESS) {
+ puts ("Done.\n");
+ }
+ else {
+ puts ("Fail.\n");
+ }
+#endif
+
+ } else {
+ printf ("%s: NULL Interface function table!\n", __FUNCTION__);
+ }
+
+ return ret_val;
+}
+
+static int Spartan3_ss_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ /* Readback is only available through the Slave Parallel and */
+ /* boundary-scan interfaces. */
+ printf ("%s: Slave Serial Dumping is unavailable\n",
+ __FUNCTION__);
+ return FPGA_FAIL;
+}
+
+static int Spartan3_ss_reloc (Xilinx_desc * desc, ulong reloc_offset)
+{
+ int ret_val = FPGA_FAIL; /* assume the worst */
+ Xilinx_Spartan3_Slave_Serial_fns *fn_r, *fn =
+ (Xilinx_Spartan3_Slave_Serial_fns *) (desc->iface_fns);
+
+ if (fn) {
+ ulong addr;
+
+ /* Get the relocated table address */
+ addr = (ulong) fn + reloc_offset;
+ fn_r = (Xilinx_Spartan3_Slave_Serial_fns *) addr;
+
+ if (!fn_r->relocated) {
+
+ if (memcmp (fn_r, fn,
+ sizeof (Xilinx_Spartan3_Slave_Serial_fns))
+ == 0) {
+ /* good copy of the table, fix the descriptor pointer */
+ desc->iface_fns = fn_r;
+ } else {
+ PRINTF ("%s: Invalid function table at 0x%p\n",
+ __FUNCTION__, fn_r);
+ return FPGA_FAIL;
+ }
+
+ PRINTF ("%s: Relocating descriptor at 0x%p\n", __FUNCTION__,
+ desc);
+
+ if (fn->pre) {
+ addr = (ulong) (fn->pre) + reloc_offset;
+ fn_r->pre = (Xilinx_pre_fn) addr;
+ }
+
+ addr = (ulong) (fn->pgm) + reloc_offset;
+ fn_r->pgm = (Xilinx_pgm_fn) addr;
+
+ addr = (ulong) (fn->init) + reloc_offset;
+ fn_r->init = (Xilinx_init_fn) addr;
+
+ addr = (ulong) (fn->done) + reloc_offset;
+ fn_r->done = (Xilinx_done_fn) addr;
+
+ addr = (ulong) (fn->clk) + reloc_offset;
+ fn_r->clk = (Xilinx_clk_fn) addr;
+
+ addr = (ulong) (fn->wr) + reloc_offset;
+ fn_r->wr = (Xilinx_wr_fn) addr;
+
+ if (fn->post) {
+ addr = (ulong) (fn->post) + reloc_offset;
+ fn_r->post = (Xilinx_post_fn) addr;
+ }
+
+ fn_r->relocated = TRUE;
+
+ } else {
+ /* this table has already been moved */
+ /* XXX - should check to see if the descriptor is correct */
+ desc->iface_fns = fn_r;
+ }
+
+ ret_val = FPGA_SUCCESS;
+ } else {
+ printf ("%s: NULL Interface function table!\n", __FUNCTION__);
+ }
+
+ return ret_val;
+
+}
diff --git a/drivers/fpga/stratixII.c b/drivers/fpga/stratixII.c
new file mode 100644
index 000000000..7556dbfb3
--- /dev/null
+++ b/drivers/fpga/stratixII.c
@@ -0,0 +1,231 @@
+/*
+ * (C) Copyright 2007
+ * Eran Liberty, Extricom , eran.liberty@gmail.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
+ *
+ */
+
+#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_reloc (Altera_desc * desc, ulong reloc_offset)
+{
+ int i;
+ uint32_t dest = (uint32_t) desc & 0xff000000;
+
+ /* we assume a relocated code and non relocated code has different upper 8 bits */
+ if (dest != ((uint32_t) desc->iface_fns & 0xff000000)) {
+ desc->iface_fns =
+ (void *)((uint32_t) (desc->iface_fns) + reloc_offset);
+ }
+ for (i = 0; i < sizeof (altera_board_specific_func) / sizeof (void *);
+ i++) {
+ if (dest !=
+ ((uint32_t) (((void **)(desc->iface_fns))[i]) & 0xff000000))
+ {
+ ((void **)(desc->iface_fns))[i] =
+ (void
+ *)(((uint32_t) (((void **)(desc->iface_fns))[i])) +
+ reloc_offset);
+ }
+ }
+ 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;
+}
diff --git a/drivers/fpga/virtex2.c b/drivers/fpga/virtex2.c
new file mode 100644
index 000000000..50d092184
--- /dev/null
+++ b/drivers/fpga/virtex2.c
@@ -0,0 +1,554 @@
+/*
+ * (C) Copyright 2002
+ * Rich Ireland, Enterasys Networks, rireland@enterasys.com.
+ * Keith Outwater, keith_outwater@mvis.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
+ *
+ */
+
+/*
+ * Configuration support for Xilinx Virtex2 devices. Based
+ * on spartan2.c (Rich Ireland, rireland@enterasys.com).
+ */
+
+#include <common.h>
+#include <virtex2.h>
+
+#if 0
+#define FPGA_DEBUG
+#endif
+
+#ifdef FPGA_DEBUG
+#define PRINTF(fmt,args...) printf (fmt ,##args)
+#else
+#define PRINTF(fmt,args...)
+#endif
+
+/*
+ * If the SelectMap interface can be overrun by the processor, define
+ * CONFIG_SYS_FPGA_CHECK_BUSY and/or CONFIG_FPGA_DELAY in the board configuration
+ * file and add board-specific support for checking BUSY status. By default,
+ * assume that the SelectMap interface cannot be overrun.
+ */
+#ifndef CONFIG_SYS_FPGA_CHECK_BUSY
+#undef CONFIG_SYS_FPGA_CHECK_BUSY
+#endif
+
+#ifndef CONFIG_FPGA_DELAY
+#define CONFIG_FPGA_DELAY()
+#endif
+
+#ifndef CONFIG_SYS_FPGA_PROG_FEEDBACK
+#define CONFIG_SYS_FPGA_PROG_FEEDBACK
+#endif
+
+/*
+ * Don't allow config cycle to be interrupted
+ */
+#ifndef CONFIG_SYS_FPGA_CHECK_CTRLC
+#undef CONFIG_SYS_FPGA_CHECK_CTRLC
+#endif
+
+/*
+ * Check for errors during configuration by default
+ */
+#ifndef CONFIG_SYS_FPGA_CHECK_ERROR
+#define CONFIG_SYS_FPGA_CHECK_ERROR
+#endif
+
+/*
+ * The default timeout in mS for INIT_B to deassert after PROG_B has
+ * been deasserted. Per the latest Virtex II Handbook (page 347), the
+ * max time from PORG_B deassertion to INIT_B deassertion is 4uS per
+ * data frame for the XC2V8000. The XC2V8000 has 2860 data frames
+ * which yields 11.44 mS. So let's make it bigger in order to handle
+ * an XC2V1000, if anyone can ever get ahold of one.
+ */
+#ifndef CONFIG_SYS_FPGA_WAIT_INIT
+#define CONFIG_SYS_FPGA_WAIT_INIT CONFIG_SYS_HZ/2 /* 500 ms */
+#endif
+
+/*
+ * The default timeout for waiting for BUSY to deassert during configuration.
+ * This is normally not necessary since for most reasonable configuration
+ * clock frequencies (i.e. 66 MHz or less), BUSY monitoring is unnecessary.
+ */
+#ifndef CONFIG_SYS_FPGA_WAIT_BUSY
+#define CONFIG_SYS_FPGA_WAIT_BUSY CONFIG_SYS_HZ/200 /* 5 ms*/
+#endif
+
+/* Default timeout for waiting for FPGA to enter operational mode after
+ * configuration data has been written.
+ */
+#ifndef CONFIG_SYS_FPGA_WAIT_CONFIG
+#define CONFIG_SYS_FPGA_WAIT_CONFIG CONFIG_SYS_HZ/5 /* 200 ms */
+#endif
+
+static int Virtex2_ssm_load (Xilinx_desc * desc, void *buf, size_t bsize);
+static int Virtex2_ssm_dump (Xilinx_desc * desc, void *buf, size_t bsize);
+static int Virtex2_ssm_reloc (Xilinx_desc * desc, ulong reloc_offset);
+
+static int Virtex2_ss_load (Xilinx_desc * desc, void *buf, size_t bsize);
+static int Virtex2_ss_dump (Xilinx_desc * desc, void *buf, size_t bsize);
+static int Virtex2_ss_reloc (Xilinx_desc * desc, ulong reloc_offset);
+
+int Virtex2_load (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL;
+
+ switch (desc->iface) {
+ case slave_serial:
+ PRINTF ("%s: Launching Slave Serial Load\n", __FUNCTION__);
+ ret_val = Virtex2_ss_load (desc, buf, bsize);
+ break;
+
+ case slave_selectmap:
+ PRINTF ("%s: Launching Slave Parallel Load\n", __FUNCTION__);
+ ret_val = Virtex2_ssm_load (desc, buf, bsize);
+ break;
+
+ default:
+ printf ("%s: Unsupported interface type, %d\n",
+ __FUNCTION__, desc->iface);
+ }
+ return ret_val;
+}
+
+int Virtex2_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL;
+
+ switch (desc->iface) {
+ case slave_serial:
+ PRINTF ("%s: Launching Slave Serial Dump\n", __FUNCTION__);
+ ret_val = Virtex2_ss_dump (desc, buf, bsize);
+ break;
+
+ case slave_parallel:
+ PRINTF ("%s: Launching Slave Parallel Dump\n", __FUNCTION__);
+ ret_val = Virtex2_ssm_dump (desc, buf, bsize);
+ break;
+
+ default:
+ printf ("%s: Unsupported interface type, %d\n",
+ __FUNCTION__, desc->iface);
+ }
+ return ret_val;
+}
+
+int Virtex2_info (Xilinx_desc * desc)
+{
+ return FPGA_SUCCESS;
+}
+
+int Virtex2_reloc (Xilinx_desc * desc, ulong reloc_offset)
+{
+ int ret_val = FPGA_FAIL;
+
+ if (desc->family != Xilinx_Virtex2) {
+ printf ("%s: Unsupported family type, %d\n",
+ __FUNCTION__, desc->family);
+ return FPGA_FAIL;
+ } else
+ switch (desc->iface) {
+ case slave_serial:
+ ret_val = Virtex2_ss_reloc (desc, reloc_offset);
+ break;
+
+ case slave_selectmap:
+ ret_val = Virtex2_ssm_reloc (desc, reloc_offset);
+ break;
+
+ default:
+ printf ("%s: Unsupported interface type, %d\n",
+ __FUNCTION__, desc->iface);
+ }
+ return ret_val;
+}
+
+/*
+ * Virtex-II Slave SelectMap configuration loader. Configuration via
+ * SelectMap is as follows:
+ * 1. Set the FPGA's PROG_B line low.
+ * 2. Set the FPGA's PROG_B line high. Wait for INIT_B to go high.
+ * 3. Write data to the SelectMap port. If INIT_B goes low at any time
+ * this process, a configuration error (most likely CRC failure) has
+ * ocurred. At this point a status word may be read from the
+ * SelectMap interface to determine the source of the problem (You
+ * could, for instance, put this in your 'abort' function handler).
+ * 4. After all data has been written, test the state of the FPGA
+ * INIT_B and DONE lines. If both are high, configuration has
+ * succeeded. Congratulations!
+ */
+static int Virtex2_ssm_load (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL;
+ Xilinx_Virtex2_Slave_SelectMap_fns *fn = desc->iface_fns;
+
+ PRINTF ("%s:%d: Start with interface functions @ 0x%p\n",
+ __FUNCTION__, __LINE__, fn);
+
+ if (fn) {
+ size_t bytecount = 0;
+ unsigned char *data = (unsigned char *) buf;
+ int cookie = desc->cookie;
+ unsigned long ts;
+
+ /* Gotta split this one up (so the stack won't blow??) */
+ PRINTF ("%s:%d: Function Table:\n"
+ " base 0x%p\n"
+ " struct 0x%p\n"
+ " pre 0x%p\n"
+ " prog 0x%p\n"
+ " init 0x%p\n"
+ " error 0x%p\n",
+ __FUNCTION__, __LINE__,
+ &fn, fn, fn->pre, fn->pgm, fn->init, fn->err);
+ PRINTF (" clock 0x%p\n"
+ " cs 0x%p\n"
+ " write 0x%p\n"
+ " rdata 0x%p\n"
+ " wdata 0x%p\n"
+ " busy 0x%p\n"
+ " abort 0x%p\n"
+ " post 0x%p\n\n",
+ fn->clk, fn->cs, fn->wr, fn->rdata, fn->wdata,
+ fn->busy, fn->abort, fn->post);
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ printf ("Initializing FPGA Device %d...\n", cookie);
+#endif
+ /*
+ * Run the pre configuration function if there is one.
+ */
+ if (*fn->pre) {
+ (*fn->pre) (cookie);
+ }
+
+ /*
+ * Assert the program line. The minimum pulse width for
+ * Virtex II devices is 300 nS (Tprogram parameter in datasheet).
+ * There is no maximum value for the pulse width. Check to make
+ * sure that INIT_B goes low after assertion of PROG_B
+ */
+ (*fn->pgm) (TRUE, TRUE, cookie);
+ udelay (10);
+ ts = get_timer (0);
+ do {
+ if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT_INIT) {
+ printf ("%s:%d: ** Timeout after %d ticks waiting for INIT"
+ " to assert.\n", __FUNCTION__, __LINE__,
+ CONFIG_SYS_FPGA_WAIT_INIT);
+ (*fn->abort) (cookie);
+ return FPGA_FAIL;
+ }
+ } while (!(*fn->init) (cookie));
+
+ (*fn->pgm) (FALSE, TRUE, cookie);
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (TRUE, TRUE, cookie);
+
+ /*
+ * Start a timer and wait for INIT_B to go high
+ */
+ ts = get_timer (0);
+ do {
+ CONFIG_FPGA_DELAY ();
+ if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT_INIT) {
+ printf ("%s:%d: ** Timeout after %d ticks waiting for INIT"
+ " to deassert.\n", __FUNCTION__, __LINE__,
+ CONFIG_SYS_FPGA_WAIT_INIT);
+ (*fn->abort) (cookie);
+ return FPGA_FAIL;
+ }
+ } while ((*fn->init) (cookie) && (*fn->busy) (cookie));
+
+ (*fn->wr) (TRUE, TRUE, cookie);
+ (*fn->cs) (TRUE, TRUE, cookie);
+
+ udelay (10000);
+
+ /*
+ * Load the data byte by byte
+ */
+ while (bytecount < bsize) {
+#ifdef CONFIG_SYS_FPGA_CHECK_CTRLC
+ if (ctrlc ()) {
+ (*fn->abort) (cookie);
+ return FPGA_FAIL;
+ }
+#endif
+
+ if ((*fn->done) (cookie) == FPGA_SUCCESS) {
+ PRINTF ("%s:%d:done went active early, bytecount = %d\n",
+ __FUNCTION__, __LINE__, bytecount);
+ break;
+ }
+
+#ifdef CONFIG_SYS_FPGA_CHECK_ERROR
+ if ((*fn->init) (cookie)) {
+ printf ("\n%s:%d: ** Error: INIT asserted during"
+ " configuration\n", __FUNCTION__, __LINE__);
+ printf ("%d = buffer offset, %d = buffer size\n",
+ bytecount, bsize);
+ (*fn->abort) (cookie);
+ return FPGA_FAIL;
+ }
+#endif
+
+ (*fn->wdata) (data[bytecount++], TRUE, cookie);
+ CONFIG_FPGA_DELAY ();
+
+ /*
+ * Cycle the clock pin
+ */
+ (*fn->clk) (FALSE, TRUE, cookie);
+ CONFIG_FPGA_DELAY ();
+ (*fn->clk) (TRUE, TRUE, cookie);
+
+#ifdef CONFIG_SYS_FPGA_CHECK_BUSY
+ ts = get_timer (0);
+ while ((*fn->busy) (cookie)) {
+ if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT_BUSY) {
+ printf ("%s:%d: ** Timeout after %d ticks waiting for"
+ " BUSY to deassert\n",
+ __FUNCTION__, __LINE__, CONFIG_SYS_FPGA_WAIT_BUSY);
+ (*fn->abort) (cookie);
+ return FPGA_FAIL;
+ }
+ }
+#endif
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ if (bytecount % (bsize / 40) == 0)
+ putc ('.');
+#endif
+ }
+
+ /*
+ * Finished writing the data; deassert FPGA CS_B and WRITE_B signals.
+ */
+ CONFIG_FPGA_DELAY ();
+ (*fn->cs) (FALSE, TRUE, cookie);
+ (*fn->wr) (FALSE, TRUE, cookie);
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ putc ('\n');
+#endif
+
+ /*
+ * Check for successful configuration. FPGA INIT_B and DONE should
+ * both be high upon successful configuration.
+ */
+ ts = get_timer (0);
+ ret_val = FPGA_SUCCESS;
+ while (((*fn->done) (cookie) == FPGA_FAIL) || (*fn->init) (cookie)) {
+ if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT_CONFIG) {
+ printf ("%s:%d: ** Timeout after %d ticks waiting for DONE to"
+ "assert and INIT to deassert\n",
+ __FUNCTION__, __LINE__, CONFIG_SYS_FPGA_WAIT_CONFIG);
+ (*fn->abort) (cookie);
+ ret_val = FPGA_FAIL;
+ break;
+ }
+ }
+
+ if (ret_val == FPGA_SUCCESS) {
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ printf ("Initialization of FPGA device %d complete\n", cookie);
+#endif
+ /*
+ * Run the post configuration function if there is one.
+ */
+ if (*fn->post) {
+ (*fn->post) (cookie);
+ }
+ } else {
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ printf ("** Initialization of FPGA device %d FAILED\n",
+ cookie);
+#endif
+ }
+ } else {
+ printf ("%s:%d: NULL Interface function table!\n",
+ __FUNCTION__, __LINE__);
+ }
+ return ret_val;
+}
+
+/*
+ * Read the FPGA configuration data
+ */
+static int Virtex2_ssm_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL;
+ Xilinx_Virtex2_Slave_SelectMap_fns *fn = desc->iface_fns;
+
+ if (fn) {
+ unsigned char *data = (unsigned char *) buf;
+ size_t bytecount = 0;
+ int cookie = desc->cookie;
+
+ printf ("Starting Dump of FPGA Device %d...\n", cookie);
+
+ (*fn->cs) (TRUE, TRUE, cookie);
+ (*fn->clk) (TRUE, TRUE, cookie);
+
+ while (bytecount < bsize) {
+#ifdef CONFIG_SYS_FPGA_CHECK_CTRLC
+ if (ctrlc ()) {
+ (*fn->abort) (cookie);
+ return FPGA_FAIL;
+ }
+#endif
+ /*
+ * Cycle the clock and read the data
+ */
+ (*fn->clk) (FALSE, TRUE, cookie);
+ (*fn->clk) (TRUE, TRUE, cookie);
+ (*fn->rdata) (&(data[bytecount++]), cookie);
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ if (bytecount % (bsize / 40) == 0)
+ putc ('.');
+#endif
+ }
+
+ /*
+ * Deassert CS_B and cycle the clock to deselect the device.
+ */
+ (*fn->cs) (FALSE, FALSE, cookie);
+ (*fn->clk) (FALSE, TRUE, cookie);
+ (*fn->clk) (TRUE, TRUE, cookie);
+
+#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
+ putc ('\n');
+#endif
+ puts ("Done.\n");
+ } else {
+ printf ("%s:%d: NULL Interface function table!\n",
+ __FUNCTION__, __LINE__);
+ }
+ return ret_val;
+}
+
+/*
+ * Relocate the addresses in the function table from FLASH (or ROM,
+ * or whatever) to RAM.
+ */
+static int Virtex2_ssm_reloc (Xilinx_desc * desc, ulong reloc_offset)
+{
+ ulong addr;
+ int ret_val = FPGA_FAIL;
+ Xilinx_Virtex2_Slave_SelectMap_fns *fn_r, *fn =
+ (Xilinx_Virtex2_Slave_SelectMap_fns *) (desc->iface_fns);
+
+ if (fn) {
+ /*
+ * Get the relocated table address
+ */
+ addr = (ulong) fn + reloc_offset;
+ fn_r = (Xilinx_Virtex2_Slave_SelectMap_fns *) addr;
+
+ /*
+ * Check to see if the table has already been relocated. If not, do
+ * a sanity check to make sure there is a faithful copy of the
+ * FLASH based function table in RAM, then adjust the table.
+ */
+ if (!fn_r->relocated) {
+ if (memcmp
+ (fn_r, fn, sizeof (Xilinx_Virtex2_Slave_SelectMap_fns))
+ == 0) {
+ desc->iface_fns = fn_r;
+ } else {
+ PRINTF ("%s:%d: Invalid function table at 0x%p\n",
+ __FUNCTION__, __LINE__, fn_r);
+ return FPGA_FAIL;
+ }
+
+ PRINTF ("%s:%d: Relocating descriptor at 0x%p\n",
+ __FUNCTION__, __LINE__, desc);
+
+ addr = (ulong) (fn->pre) + reloc_offset;
+ fn_r->pre = (Xilinx_pre_fn) addr;
+ addr = (ulong) (fn->pgm) + reloc_offset;
+ fn_r->pgm = (Xilinx_pgm_fn) addr;
+ addr = (ulong) (fn->init) + reloc_offset;
+ fn_r->init = (Xilinx_init_fn) addr;
+ addr = (ulong) (fn->done) + reloc_offset;
+ fn_r->done = (Xilinx_done_fn) addr;
+ addr = (ulong) (fn->err) + reloc_offset;
+ fn_r->err = (Xilinx_err_fn) addr;
+ addr = (ulong) (fn->clk) + reloc_offset;
+ fn_r->clk = (Xilinx_clk_fn) addr;
+ addr = (ulong) (fn->cs) + reloc_offset;
+ fn_r->cs = (Xilinx_cs_fn) addr;
+ addr = (ulong) (fn->wr) + reloc_offset;
+ fn_r->wr = (Xilinx_wr_fn) addr;
+ addr = (ulong) (fn->rdata) + reloc_offset;
+ fn_r->rdata = (Xilinx_rdata_fn) addr;
+ addr = (ulong) (fn->wdata) + reloc_offset;
+ fn_r->wdata = (Xilinx_wdata_fn) addr;
+ addr = (ulong) (fn->busy) + reloc_offset;
+ fn_r->busy = (Xilinx_busy_fn) addr;
+ addr = (ulong) (fn->abort) + reloc_offset;
+ fn_r->abort = (Xilinx_abort_fn) addr;
+ addr = (ulong) (fn->post) + reloc_offset;
+ fn_r->post = (Xilinx_post_fn) addr;
+ fn_r->relocated = TRUE;
+ } else {
+ printf ("%s:%d: Function table @0x%p has already been relocated\n", __FUNCTION__, __LINE__, fn_r);
+ desc->iface_fns = fn_r;
+ }
+ ret_val = FPGA_SUCCESS;
+ } else {
+ printf ("%s: NULL Interface function table!\n", __FUNCTION__);
+ }
+ return ret_val;
+}
+
+static int Virtex2_ss_load (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ printf ("%s: Slave Serial Loading is unsupported\n", __FUNCTION__);
+ return FPGA_FAIL;
+}
+
+static int Virtex2_ss_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ printf ("%s: Slave Serial Dumping is unsupported\n", __FUNCTION__);
+ return FPGA_FAIL;
+}
+
+static int Virtex2_ss_reloc (Xilinx_desc * desc, ulong reloc_offset)
+{
+ int ret_val = FPGA_FAIL;
+ Xilinx_Virtex2_Slave_Serial_fns *fn =
+ (Xilinx_Virtex2_Slave_Serial_fns *) (desc->iface_fns);
+
+ if (fn) {
+ printf ("%s:%d: Slave Serial Loading is unsupported\n",
+ __FUNCTION__, __LINE__);
+ } else {
+ printf ("%s:%d: NULL Interface function table!\n",
+ __FUNCTION__, __LINE__);
+ }
+ return ret_val;
+}
+
+/* vim: set ts=4 tw=78: */
diff --git a/drivers/fpga/xilinx.c b/drivers/fpga/xilinx.c
new file mode 100644
index 000000000..7b5e8c5bb
--- /dev/null
+++ b/drivers/fpga/xilinx.c
@@ -0,0 +1,307 @@
+/*
+ * (C) Copyright 2002
+ * Rich Ireland, Enterasys Networks, rireland@enterasys.com.
+ * Keith Outwater, keith_outwater@mvis.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
+ *
+ */
+
+/*
+ * Xilinx FPGA support
+ */
+
+#include <common.h>
+#include <virtex2.h>
+#include <spartan2.h>
+#include <spartan3.h>
+
+#if 0
+#define FPGA_DEBUG
+#endif
+
+/* Define FPGA_DEBUG to get debug printf's */
+#ifdef FPGA_DEBUG
+#define PRINTF(fmt,args...) printf (fmt ,##args)
+#else
+#define PRINTF(fmt,args...)
+#endif
+
+/* Local Static Functions */
+static int xilinx_validate (Xilinx_desc * desc, char *fn);
+
+/* ------------------------------------------------------------------------- */
+
+int xilinx_load (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL; /* assume a failure */
+
+ if (!xilinx_validate (desc, (char *)__FUNCTION__)) {
+ printf ("%s: Invalid device descriptor\n", __FUNCTION__);
+ } else
+ switch (desc->family) {
+ case Xilinx_Spartan2:
+#if defined(CONFIG_FPGA_SPARTAN2)
+ PRINTF ("%s: Launching the Spartan-II Loader...\n",
+ __FUNCTION__);
+ ret_val = Spartan2_load (desc, buf, bsize);
+#else
+ printf ("%s: No support for Spartan-II devices.\n",
+ __FUNCTION__);
+#endif
+ break;
+ case Xilinx_Spartan3:
+#if defined(CONFIG_FPGA_SPARTAN3)
+ PRINTF ("%s: Launching the Spartan-III Loader...\n",
+ __FUNCTION__);
+ ret_val = Spartan3_load (desc, buf, bsize);
+#else
+ printf ("%s: No support for Spartan-III devices.\n",
+ __FUNCTION__);
+#endif
+ break;
+ case Xilinx_Virtex2:
+#if defined(CONFIG_FPGA_VIRTEX2)
+ PRINTF ("%s: Launching the Virtex-II Loader...\n",
+ __FUNCTION__);
+ ret_val = Virtex2_load (desc, buf, bsize);
+#else
+ printf ("%s: No support for Virtex-II devices.\n",
+ __FUNCTION__);
+#endif
+ break;
+
+ default:
+ printf ("%s: Unsupported family type, %d\n",
+ __FUNCTION__, desc->family);
+ }
+
+ return ret_val;
+}
+
+int xilinx_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+{
+ int ret_val = FPGA_FAIL; /* assume a failure */
+
+ if (!xilinx_validate (desc, (char *)__FUNCTION__)) {
+ printf ("%s: Invalid device descriptor\n", __FUNCTION__);
+ } else
+ switch (desc->family) {
+ case Xilinx_Spartan2:
+#if defined(CONFIG_FPGA_SPARTAN2)
+ PRINTF ("%s: Launching the Spartan-II Reader...\n",
+ __FUNCTION__);
+ ret_val = Spartan2_dump (desc, buf, bsize);
+#else
+ printf ("%s: No support for Spartan-II devices.\n",
+ __FUNCTION__);
+#endif
+ break;
+ case Xilinx_Spartan3:
+#if defined(CONFIG_FPGA_SPARTAN3)
+ PRINTF ("%s: Launching the Spartan-III Reader...\n",
+ __FUNCTION__);
+ ret_val = Spartan3_dump (desc, buf, bsize);
+#else
+ printf ("%s: No support for Spartan-III devices.\n",
+ __FUNCTION__);
+#endif
+ break;
+ case Xilinx_Virtex2:
+#if defined( CONFIG_FPGA_VIRTEX2)
+ PRINTF ("%s: Launching the Virtex-II Reader...\n",
+ __FUNCTION__);
+ ret_val = Virtex2_dump (desc, buf, bsize);
+#else
+ printf ("%s: No support for Virtex-II devices.\n",
+ __FUNCTION__);
+#endif
+ break;
+
+ default:
+ printf ("%s: Unsupported family type, %d\n",
+ __FUNCTION__, desc->family);
+ }
+
+ return ret_val;
+}
+
+int xilinx_info (Xilinx_desc * desc)
+{
+ int ret_val = FPGA_FAIL;
+
+ if (xilinx_validate (desc, (char *)__FUNCTION__)) {
+ printf ("Family: \t");
+ switch (desc->family) {
+ case Xilinx_Spartan2:
+ printf ("Spartan-II\n");
+ break;
+ case Xilinx_Spartan3:
+ printf ("Spartan-III\n");
+ break;
+ case Xilinx_Virtex2:
+ printf ("Virtex-II\n");
+ break;
+ /* Add new family types here */
+ default:
+ printf ("Unknown family type, %d\n", desc->family);
+ }
+
+ printf ("Interface type:\t");
+ switch (desc->iface) {
+ case slave_serial:
+ printf ("Slave Serial\n");
+ break;
+ case master_serial: /* Not used */
+ printf ("Master Serial\n");
+ break;
+ case slave_parallel:
+ printf ("Slave Parallel\n");
+ break;
+ case jtag_mode: /* Not used */
+ printf ("JTAG Mode\n");
+ break;
+ case slave_selectmap:
+ printf ("Slave SelectMap Mode\n");
+ break;
+ case master_selectmap:
+ printf ("Master SelectMap Mode\n");
+ break;
+ /* Add new interface types here */
+ default:
+ printf ("Unsupported interface type, %d\n", desc->iface);
+ }
+
+ printf ("Device Size: \t%d bytes\n"
+ "Cookie: \t0x%x (%d)\n",
+ desc->size, desc->cookie, desc->cookie);
+
+ if (desc->iface_fns) {
+ printf ("Device Function Table @ 0x%p\n", desc->iface_fns);
+ switch (desc->family) {
+ case Xilinx_Spartan2:
+#if defined(CONFIG_FPGA_SPARTAN2)
+ Spartan2_info (desc);
+#else
+ /* just in case */
+ printf ("%s: No support for Spartan-II devices.\n",
+ __FUNCTION__);
+#endif
+ break;
+ case Xilinx_Spartan3:
+#if defined(CONFIG_FPGA_SPARTAN3)
+ Spartan3_info (desc);
+#else
+ /* just in case */
+ printf ("%s: No support for Spartan-III devices.\n",
+ __FUNCTION__);
+#endif
+ break;
+ case Xilinx_Virtex2:
+#if defined(CONFIG_FPGA_VIRTEX2)
+ Virtex2_info (desc);
+#else
+ /* just in case */
+ printf ("%s: No support for Virtex-II devices.\n",
+ __FUNCTION__);
+#endif
+ break;
+ /* Add new family types here */
+ default:
+ /* we don't need a message here - we give one up above */
+ ;
+ }
+ } else
+ printf ("No Device Function Table.\n");
+
+ ret_val = FPGA_SUCCESS;
+ } else {
+ printf ("%s: Invalid device descriptor\n", __FUNCTION__);
+ }
+
+ return ret_val;
+}
+
+int xilinx_reloc (Xilinx_desc * desc, ulong reloc_offset)
+{
+ int ret_val = FPGA_FAIL; /* assume a failure */
+
+ if (!xilinx_validate (desc, (char *)__FUNCTION__)) {
+ printf ("%s: Invalid device descriptor\n", __FUNCTION__);
+ } else
+ switch (desc->family) {
+ case Xilinx_Spartan2:
+#if defined(CONFIG_FPGA_SPARTAN2)
+ ret_val = Spartan2_reloc (desc, reloc_offset);
+#else
+ printf ("%s: No support for Spartan-II devices.\n",
+ __FUNCTION__);
+#endif
+ break;
+ case Xilinx_Spartan3:
+#if defined(CONFIG_FPGA_SPARTAN3)
+ ret_val = Spartan3_reloc (desc, reloc_offset);
+#else
+ printf ("%s: No support for Spartan-III devices.\n",
+ __FUNCTION__);
+#endif
+ break;
+ case Xilinx_Virtex2:
+#if defined(CONFIG_FPGA_VIRTEX2)
+ ret_val = Virtex2_reloc (desc, reloc_offset);
+#else
+ printf ("%s: No support for Virtex-II devices.\n",
+ __FUNCTION__);
+#endif
+ break;
+ /* Add new family types here */
+ default:
+ printf ("%s: Unsupported family type, %d\n",
+ __FUNCTION__, desc->family);
+ }
+
+ return ret_val;
+}
+
+
+/* ------------------------------------------------------------------------- */
+
+static int xilinx_validate (Xilinx_desc * desc, char *fn)
+{
+ int ret_val = FALSE;
+
+ if (desc) {
+ if ((desc->family > min_xilinx_type) &&
+ (desc->family < max_xilinx_type)) {
+ if ((desc->iface > min_xilinx_iface_type) &&
+ (desc->iface < max_xilinx_iface_type)) {
+ if (desc->size) {
+ ret_val = TRUE;
+ } else
+ printf ("%s: NULL part size\n", fn);
+ } else
+ printf ("%s: Invalid Interface type, %d\n",
+ fn, desc->iface);
+ } else
+ printf ("%s: Invalid family type, %d\n", fn, desc->family);
+ } else
+ printf ("%s: NULL descriptor!\n", fn);
+
+ return ret_val;
+}