powerpc/ppc4xx: Add fpgad command for dumping gdsys fpga registers

Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>

diff --git a/common/Makefile b/common/Makefile
index 87ba82e204b8353eef0c05b1f25b43820d889e32..288690bca5f46ae68e2e099b36fa746f676ebc71 100644 (file)
--- a/common/Makefile
+++ b/common/Makefile
@@ -92,6 +92,7 @@ COBJS-$(CONFIG_CMD_FLASH) += cmd_flash.o
 ifdef CONFIG_FPGA
 COBJS-$(CONFIG_CMD_FPGA) += cmd_fpga.o
 endif
+COBJS-$(CONFIG_CMD_FPGAD) += cmd_fpgad.o
 COBJS-$(CONFIG_CMD_FS_GENERIC) += cmd_fs.o
 COBJS-$(CONFIG_CMD_FUSE) += cmd_fuse.o
 COBJS-$(CONFIG_CMD_GETTIME) += cmd_gettime.o

diff --git a/common/cmd_fpgad.c b/common/cmd_fpgad.c
new file mode 100644 (file)
index 0000000..07536ff
--- /dev/null
+++ b/common/cmd_fpgad.c
@@ -0,0 +1,100 @@
+/*
+ * (C) Copyright 2013
+ * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
+ *
+ * based on cmd_mem.c
+ * (C) Copyright 2000
+ * 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 <common.h>
+#include <command.h>
+
+#include <gdsys_fpga.h>
+
+static uint    dp_last_fpga;
+static uint    dp_last_addr;
+static uint    dp_last_length = 0x40;
+
+/*
+ * FPGA Memory Display
+ *
+ * Syntax:
+ *     fpgad {fpga} {addr} {len}
+ */
+#define DISP_LINE_LEN  16
+int do_fpga_md(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+       unsigned int k;
+       unsigned int fpga;
+       ulong   addr, length;
+       int rc = 0;
+       u16     linebuf[DISP_LINE_LEN/sizeof(u16)];
+
+       /*
+        * We use the last specified parameters, unless new ones are
+        * entered.
+        */
+       fpga = dp_last_fpga;
+       addr = dp_last_addr;
+       length = dp_last_length;
+
+       if (argc < 3)
+               return CMD_RET_USAGE;
+
+       if ((flag & CMD_FLAG_REPEAT) == 0) {
+               /*
+                * FPGA is specified since argc > 2
+                */
+               fpga = simple_strtoul(argv[1], NULL, 16);
+
+               /*
+                * Address is specified since argc > 2
+                */
+               addr = simple_strtoul(argv[2], NULL, 16);
+
+               /*
+                * If another parameter, it is the length to display.
+                * Length is the number of objects, not number of bytes.
+                */
+               if (argc > 3)
+                       length = simple_strtoul(argv[3], NULL, 16);
+       }
+
+       /* Print the lines. */
+       for (k = 0; k < DISP_LINE_LEN / sizeof(u16); ++k)
+               fpga_get_reg(fpga, (u16 *)fpga_ptr[fpga] + k, k * sizeof(u16),
+                            &linebuf[k]);
+       print_buffer(addr, (void *)linebuf, sizeof(u16),
+                    length, DISP_LINE_LEN / sizeof(u16));
+       addr += sizeof(u16)*length;
+
+       dp_last_fpga = fpga;
+       dp_last_addr = addr;
+       dp_last_length = length;
+       return rc;
+}
+
+U_BOOT_CMD(
+       fpgad,  4,      1,      do_fpga_md,
+       "fpga register display",
+       "fpga address [# of objects]"
+);