Patches by Stephan Linz, 11 Dec 2003:
- more documentation for NIOS port
- new struct nios_pio_t, struct nios_spi_t
- Reconfiguration for NIOS Development Kit DK1C20:
o move board related code from board/dk1c20
to board/altera/dk1c20
o create a new common source path board/altera/common
and move generic flash access stuff into it
o change/expand configuration file DK1C20.h
- Add support for NIOS Development Kit DK1S10
- Add status LED support for NIOS systems
- Add dual 7-segment LED support for Altera NIOS DevKits
diff --git a/board/altera/dk1s10/Makefile b/board/altera/dk1s10/Makefile
new file mode 100644
index 0000000..9182a4e
--- /dev/null
+++ b/board/altera/dk1s10/Makefile
@@ -0,0 +1,48 @@
+#
+# (C) Copyright 2001-2004
+# 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 $(TOPDIR)/config.mk
+
+LIB = lib$(BOARD).a
+
+OBJS := $(BOARD).o flash.o misc.o
+
+SOBJS = vectors.o
+
+$(LIB): $(OBJS) $(SOBJS)
+ $(AR) crv $@ $^
+
+clean:
+ rm -f $(SOBJS) $(OBJS)
+
+distclean: clean
+ rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+ $(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+-include .depend
+
+#########################################################################
diff --git a/board/altera/dk1s10/config.mk b/board/altera/dk1s10/config.mk
new file mode 100644
index 0000000..d200715
--- /dev/null
+++ b/board/altera/dk1s10/config.mk
@@ -0,0 +1,29 @@
+#
+# (C) Copyright 2003
+# Psyent Corporation
+# Scott McNutt <smcnutt@psyent.com>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+TEXT_BASE = 0x018c0000
+
+ifeq ($(debug),1)
+PLATFORM_CPPFLAGS += -DDEBUG
+endif
diff --git a/board/altera/dk1s10/dk1s10.c b/board/altera/dk1s10/dk1s10.c
new file mode 100644
index 0000000..6d7be2d
--- /dev/null
+++ b/board/altera/dk1s10/dk1s10.c
@@ -0,0 +1,50 @@
+/*
+ * (C) Copyright 2003, Psyent Corporation <www.psyent.com>
+ * Scott McNutt <smcnutt@psyent.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>
+#if defined(CONFIG_SEVENSEG)
+#include "../common/sevenseg.h"
+#endif
+
+void _default_hdlr (void)
+{
+ printf ("default_hdlr\n");
+}
+
+int board_pre_init (void)
+{
+ /* init seven segment led display and switch off */
+ sevenseg_set(SEVENSEG_OFF);
+ return 0;
+}
+
+int checkboard (void)
+{
+ puts ("Board: Altera Nios 1S10 Development Kit\n");
+ return 0;
+}
+
+long int initdram (int board_type)
+{
+ return (0);
+}
diff --git a/board/altera/dk1s10/flash.c b/board/altera/dk1s10/flash.c
new file mode 100644
index 0000000..5c70933
--- /dev/null
+++ b/board/altera/dk1s10/flash.c
@@ -0,0 +1,62 @@
+/*
+ * (C) Copyright 2000-2004
+ * 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 <nios.h>
+
+/*
+ * include common flash code (for altera boards)
+ */
+#include "../common/flash.c"
+
+/*---------------------------------------------------------------------*/
+#define BANKSZ (8 * 1024 * 1024)
+#define SECTSZ (64 * 1024)
+#define USERFLASH (2 * 1024 * 1024) /* bottom 2 MB for user */
+
+/*---------------------------------------------------------------------*/
+unsigned long flash_init (void)
+{
+ int i;
+ unsigned long addr;
+ flash_info_t *fli = &flash_info[0];
+
+ fli->size = BANKSZ;
+ fli->sector_count = CFG_MAX_FLASH_SECT;
+ fli->flash_id = FLASH_MAN_AMD + FLASH_AMDLV065D;
+
+ addr = CFG_FLASH_BASE;
+ for (i = 0; i < fli->sector_count; ++i) {
+ fli->start[i] = addr;
+ addr += SECTSZ;
+
+ /* Protect all but 2 MByte user area */
+ if (addr < (CFG_FLASH_BASE + USERFLASH))
+ fli->protect[i] = 0;
+ else
+ fli->protect[i] = 1;
+ }
+
+ return (BANKSZ);
+}
diff --git a/board/altera/dk1s10/misc.c b/board/altera/dk1s10/misc.c
new file mode 100644
index 0000000..f25cdeb
--- /dev/null
+++ b/board/altera/dk1s10/misc.c
@@ -0,0 +1,33 @@
+/*
+ * (C) Copyright 2003, Li-Pro.Net <www.li-pro.net>
+ * Stephan Linz <linz@li-pro.net>
+ *
+ * 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
+ *
+ * board/altera/dk1s10/misc.c
+ *
+ * miscellaneous board interfaces / drivers
+ */
+
+#include <common.h>
+
+#if defined(CONFIG_SEVENSEG)
+#include "../common/sevenseg.h"
+#include "../common/sevenseg.c"
+#endif
diff --git a/board/altera/dk1s10/u-boot.lds b/board/altera/dk1s10/u-boot.lds
new file mode 100644
index 0000000..a7d35af
--- /dev/null
+++ b/board/altera/dk1s10/u-boot.lds
@@ -0,0 +1,69 @@
+/*
+ * (C) Copyright 2003, Psyent Corporation <www.psyent.com>
+ * Scott McNutt <smcnutt@psyent.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
+ */
+
+
+OUTPUT_FORMAT("elf32-nios")
+OUTPUT_ARCH(nios)
+ENTRY(_start)
+
+SECTIONS
+{
+ .text :
+ {
+ cpu/nios/start.o (.text)
+ *(.text)
+ }
+ __text_end = .;
+
+ . = ALIGN(4);
+ .rodata :
+ {
+ *(.rodata)
+ }
+ __rodata_end = .;
+
+ . = ALIGN(4);
+ .data :
+ {
+ *(.data)
+ }
+ . = ALIGN(4);
+ __data_end = .;
+
+ __u_boot_cmd_start = .;
+ .u_boot_cmd :
+ {
+ *(.u_boot_cmd)
+ }
+ . = ALIGN(4);
+ __u_boot_cmd_end = .;
+
+ __bss_start = .;
+ . = ALIGN(4);
+ .bss :
+ {
+ *(.bss)
+ }
+ . = ALIGN(4);
+ __bss_end = .;
+}
diff --git a/board/altera/dk1s10/vectors.S b/board/altera/dk1s10/vectors.S
new file mode 100644
index 0000000..7094eb6
--- /dev/null
+++ b/board/altera/dk1s10/vectors.S
@@ -0,0 +1,122 @@
+/*
+ * (C) Copyright 2003, Psyent Corporation <www.psyent.com>
+ * Scott McNutt <smcnutt@psyent.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
+ */
+
+
+/*************************************************************************
+ * Exception Vector Table
+ *
+ * This could have gone in the cpu soure tree, but the whole point of
+ * Nios is customization -- and polluting the cpu source tree with
+ * board-specific ifdef's really defeats the purpose, no? With this in
+ * the board-specific tree, each board has the freedom to organize
+ * vectors/traps, etc anyway it wants. The init code copies this table
+ * to the proper location.
+ *
+ * Each board can do what it likes here. But there are four "standard"
+ * handlers availble:
+ *
+ * _cwp_lolimit -Handles register window underflows.
+ * _cwp_hilimit -Handles register window overflows.
+ * _timebase_int -Increments the timebase.
+ * _def_xhandler -Default exception handler.
+ *
+ * _timebase_int handles a Nios Timer interrupt and increments the
+ * timestamp used for the get_timer(), reset_timer(), etc. routines. It
+ * expects the timer to be configured like the standard-32 low priority
+ * timer.
+ *
+ * _def_xhandler dispatches exceptions/traps via the external_interrupt()
+ * routine. This lets you use the irq_install_handler() and handle your
+ * interrupts/traps with code written in C.
+ ************************************************************************/
+
+ .data
+ .global _vectors
+ .align 4
+_vectors:
+
+ .long _def_xhandler@h /* Vector 0 - NMI */
+ .long _cwp_lolimit@h /* Vector 1 - underflow */
+ .long _cwp_hilimit@h /* Vector 2 - overflow */
+
+ .long _def_xhandler@h /* Vector 3 - GNUPro debug */
+ .long _def_xhandler@h /* Vector 4 - GNUPro debug */
+ .long _def_xhandler@h /* Vector 5 - GNUPro debug */
+ .long _def_xhandler@h /* Vector 6 - future reserved */
+ .long _def_xhandler@h /* Vector 7 - future reserved */
+ .long _def_xhandler@h /* Vector 8 - future reserved */
+ .long _def_xhandler@h /* Vector 9 - future reserved */
+ .long _def_xhandler@h /* Vector 10 - future reserved */
+ .long _def_xhandler@h /* Vector 11 - future reserved */
+ .long _def_xhandler@h /* Vector 12 - future reserved */
+ .long _def_xhandler@h /* Vector 13 - future reserved */
+ .long _def_xhandler@h /* Vector 14 - future reserved */
+ .long _def_xhandler@h /* Vector 15 - future reserved */
+ .long _def_xhandler@h /* Vector 16 */
+ .long _def_xhandler@h /* Vector 17 */
+ .long _def_xhandler@h /* Vector 18 */
+ .long _def_xhandler@h /* Vector 19 */
+ .long _def_xhandler@h /* Vector 20 */
+ .long _def_xhandler@h /* Vector 21 */
+ .long _def_xhandler@h /* Vector 22 */
+ .long _def_xhandler@h /* Vector 23 */
+ .long _def_xhandler@h /* Vector 24 */
+ .long _def_xhandler@h /* Vector 25 */
+ .long _def_xhandler@h /* Vector 26 */
+ .long _def_xhandler@h /* Vector 27 */
+ .long _def_xhandler@h /* Vector 28 */
+ .long _def_xhandler@h /* Vector 29 */
+ .long _def_xhandler@h /* Vector 30 */
+ .long _def_xhandler@h /* Vector 31 */
+ .long _def_xhandler@h /* Vector 32 */
+ .long _def_xhandler@h /* Vector 33 */
+ .long _def_xhandler@h /* Vector 34 */
+ .long _def_xhandler@h /* Vector 35 */
+ .long _def_xhandler@h /* Vector 36 */
+ .long _def_xhandler@h /* Vector 37 */
+ .long _def_xhandler@h /* Vector 38 */
+ .long _def_xhandler@h /* Vector 39 */
+ .long _def_xhandler@h /* Vector 40 */
+ .long _def_xhandler@h /* Vector 41 */
+ .long _def_xhandler@h /* Vector 42 */
+ .long _def_xhandler@h /* Vector 43 */
+ .long _def_xhandler@h /* Vector 44 */
+ .long _def_xhandler@h /* Vector 45 */
+ .long _def_xhandler@h /* Vector 46 */
+ .long _def_xhandler@h /* Vector 47 */
+ .long _def_xhandler@h /* Vector 48 */
+ .long _def_xhandler@h /* Vector 49 */
+ .long _timebase_int@h /* Vector 50 - lopri timer*/
+ .long _def_xhandler@h /* Vector 51 */
+ .long _def_xhandler@h /* Vector 52 */
+ .long _def_xhandler@h /* Vector 53 */
+ .long _def_xhandler@h /* Vector 54 */
+ .long _def_xhandler@h /* Vector 55 */
+ .long _def_xhandler@h /* Vector 56 */
+ .long _def_xhandler@h /* Vector 57 */
+ .long _def_xhandler@h /* Vector 58 */
+ .long _def_xhandler@h /* Vector 59 */
+ .long _def_xhandler@h /* Vector 60 */
+ .long _def_xhandler@h /* Vector 61 */
+ .long _def_xhandler@h /* Vector 62 */
+ .long _def_xhandler@h /* Vector 63 */