* Patch by Steven Scholz, 10 Oct 2003

  - Add support for Altera FPGA ACEX1K

* Patches by Thomas Lange, 09 Oct 2003:
  - Endian swap ATA identity for all big endian CPUs, not just PPC
  - MIPS only: New option CONFIG_MEMSIZE_IN_BYTES for passing memsize
    args to linux
  - add support for dbau1x00 board (MIPS32)

7 files changed, 465 insertions, 0 deletions

diff --git a/board/dbau1x00/Makefile b/board/dbau1x00/Makefile
new file mode 100644
index 0000000..d1cdc6b
--- /dev/null
+++ b/board/dbau1x00/Makefile
@@ -0,0 +1,41 @@
+#
+# (C) Copyright 2003
+# 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	= $(BOARD).o flash.o
+SOBJS	= memsetup.o
+
+$(LIB):	.depend $(OBJS) $(SOBJS)
+	$(AR) crv $@ $(OBJS) $(SOBJS)
+
+#########################################################################
+
+.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+		$(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################
diff --git a/board/dbau1x00/README b/board/dbau1x00/README
new file mode 100644
index 0000000..024fbbe
--- /dev/null
+++ b/board/dbau1x00/README
@@ -0,0 +1,53 @@
+By Thomas.Lange@corelatus.se 2003-10-06
+----------------------------------------
+DbAu1000 is a development board from AMD containing
+an Alchemy AU1000 with mips32 core.
+
+Limitations & comments
+----------------------
+I assume that you set board to BIG endian!
+Little endian not tested, most probably broken.
+
+I named the board dbau1x00, to allow
+support for all three development boards
+some day ( dbau1000, dbau1100 and dbau1500 ).
+
+I only have a dbau1000, so all testing is limited
+to this board!
+
+The board has two different flash banks, that can
+be selected via dip switch. This makes it possible
+to test new bootloaders without thrashing the YAMON
+boot loader deliviered with board.
+
+Ethernet only supported for mac0.
+
+Pcmcia only supported for slot 0, only 3.3V.
+
+Pcmcia IDE tested with Sandisk Compact Flash and
+IBM microdrive.
+
+###################################
+########     NOTE!!!!!!   #########
+###################################
+If you partition a disk on another system (e.g. laptop),
+all bytes will be swapped on 16bit level when using
+PCMCIA!!!!
+
+This is probably due to an error in Au1000 chip.
+
+Solution:
+
+a) Boot via network and partition disk directly from
+dbau1x00. The endian will then be correct.
+
+b) Partition disk on "laptop" and fill it with all files
+you need. Then write a simple program that endian swaps
+whole disk,
+
+Example:
+Original "laptop" byte order:
+B0 B1 B2 B3 B4 B5 B6 B7 B8 B9...
+
+Dbau1000 byte order will then be:
+B1 B0 B3 B2 B5 B4 B7 B6 B9 B8...
diff --git a/board/dbau1x00/config.mk b/board/dbau1x00/config.mk
new file mode 100644
index 0000000..39eb60a
--- /dev/null
+++ b/board/dbau1x00/config.mk
@@ -0,0 +1,32 @@
+#
+# (C) Copyright 2003
+# 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
+#
+
+#
+# AMD development board AMD Alchemy DbAu1x00, MIPS32 core
+#
+
+# ROM version
+TEXT_BASE = 0xbfc00000
+
+# RAM version
+#TEXT_BASE = 0x80100000
diff --git a/board/dbau1x00/dbau1x00.c b/board/dbau1x00/dbau1x00.c
new file mode 100644
index 0000000..3b6fcec
--- /dev/null
+++ b/board/dbau1x00/dbau1x00.c
@@ -0,0 +1,110 @@
+/*
+ * (C) Copyright 2003
+ * Thomas.Lange@corelatus.se
+ *
+ * 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 <asm/au1x00.h>
+#include <asm/mipsregs.h>
+
+long int initdram(int board_type)
+{
+	/* Sdram is setup by assembler code */
+	/* If memory could be changed, we should return the true value here */
+	return 64*1024*1024;
+}
+
+#define BCSR_PCMCIA_PC0DRVEN		0x0010
+#define BCSR_PCMCIA_PC0RST		0x0080
+
+/* In cpu/mips/cpu.c */
+void write_one_tlb( int index, u32 pagemask, u32 hi, u32 low0, u32 low1 );
+
+int checkboard (void)
+{
+	u16 status;
+	volatile u32 *pcmcia_bcsr = (u32*)(DB1000_BCSR_ADDR+0x10);
+	volatile u32 *phy = (u32*)(DB1000_BCSR_ADDR+0xC);
+	volatile u32 *sys_counter = (volatile u32*)SYS_COUNTER_CNTRL;
+	u32 proc_id;
+
+	*sys_counter = 0x100; /* Enable 32 kHz oscillator for RTC/TOY */
+
+	proc_id = read_32bit_cp0_register(CP0_PRID);
+
+	switch(proc_id>>24){
+	case 0:
+	  puts("Board: Merlot (DbAu1000)\n");
+	  printf("CPU: Au1000 396 MHz, id: 0x%02x, rev: 0x%02x\n",
+		 (proc_id>>8)&0xFF,proc_id&0xFF);
+	  break;
+	default:
+	  printf("Unsupported cpu %d, proc_id=0x%x\n",proc_id>>24,proc_id);
+	}
+#ifdef CONFIG_IDE_PCMCIA
+	/* Enable 3.3 V on slot 0 ( VCC )
+	   No 5V */
+	status = 4;
+	*pcmcia_bcsr = status;
+
+	status |= BCSR_PCMCIA_PC0DRVEN;
+	*pcmcia_bcsr = status;
+	au_sync();
+
+	udelay(300*1000);
+
+	status |= BCSR_PCMCIA_PC0RST;
+	*pcmcia_bcsr = status;
+	au_sync();
+
+	udelay(100*1000);
+
+	/* PCMCIA is on a 36 bit physical address.
+	   We need to map it into a 32 bit addresses */
+
+#if 0
+	/* We dont need theese unless we run whole pcmcia package */
+	write_one_tlb(20,                 /* index */
+		      0x01ffe000,         /* Pagemask, 16 MB pages */
+		      CFG_PCMCIA_IO_BASE, /* Hi */
+		      0x3C000017,         /* Lo0 */
+		      0x3C200017);        /* Lo1 */
+
+	write_one_tlb(21,                   /* index */
+		      0x01ffe000,           /* Pagemask, 16 MB pages */
+		      CFG_PCMCIA_ATTR_BASE, /* Hi */
+		      0x3D000017,           /* Lo0 */
+		      0x3D200017);          /* Lo1 */
+#endif
+	write_one_tlb(22,                   /* index */
+		      0x01ffe000,           /* Pagemask, 16 MB pages */
+		      CFG_PCMCIA_MEM_ADDR,  /* Hi */
+		      0x3E000017,           /* Lo0 */
+		      0x3E200017);          /* Lo1 */
+
+	/* Release reset of ethernet PHY chips */
+	/* Always do this, because linux does not know about it */
+	*phy = 3;
+
+	return 0;
+#endif
+}
diff --git a/board/dbau1x00/flash.c b/board/dbau1x00/flash.c
new file mode 100644
index 0000000..3cf29e8
--- /dev/null
+++ b/board/dbau1x00/flash.c
@@ -0,0 +1,43 @@
+/*
+ * (C) Copyright 2003
+ * 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>
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];	/* info for FLASH chips */
+
+/*-----------------------------------------------------------------------
+ * flash_init()
+ *
+ * sets up flash_info and returns size of FLASH (bytes)
+ */
+unsigned long flash_init (void)
+{
+	printf ("Skipping flash_init\n");
+	return (0);
+}
+
+int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
+{
+	printf ("write_buff not implemented\n");
+	return (-1);
+}
diff --git a/board/dbau1x00/memsetup.S b/board/dbau1x00/memsetup.S
new file mode 100644
index 0000000..34ba2da
--- /dev/null
+++ b/board/dbau1x00/memsetup.S
@@ -0,0 +1,118 @@
+/* Memory sub-system initialization code */
+
+#include <config.h>
+#include <version.h>
+#include <asm/regdef.h>
+#include <asm/au1x00.h>
+
+	.globl	memsetup
+memsetup:
+	/* First setup pll:s to make serial work ok */
+	/* We have a 12 MHz crystal */
+        li              t0, SYS_CPUPLL
+        li              t1, 0x21 /* 396 MHz */
+        sw              t1, 0(t0)
+        sync
+        nop
+
+        /* Setup AUX PLL */
+	li              t0, SYS_AUXPLL
+	li              t1, 8 /* 96 MHz */
+        sw              t1, 0(t0) /* aux pll */
+        sync
+
+/* SDCS 0,1 SDRAM */
+	li		t0, MEM_SDMODE0
+	li		t1, 0x005522AA
+	sw		t1, 0(t0)
+
+	li              t0, MEM_SDMODE1
+	li		t1, 0x005522AA
+	sw		t1, 0(t0)
+
+	li              t0, MEM_SDADDR0
+	li		t1, 0x001003F8
+	sw		t1, 0(t0)
+
+
+	li              t0, MEM_SDADDR1
+	li		t1, 0x001023F8
+	sw		t1, 0(t0)
+	sync
+
+	li              t0, MEM_SDREFCFG
+	li		t1, 0x64000C24 /* Disable */
+	sw		t1, 0(t0)
+	sync
+
+	li              t0, MEM_SDPRECMD
+	sw		zero, 0(t0)
+	sync
+
+	li              t0, MEM_SDAUTOREF
+	sw		zero, 0(t0)
+	sync
+	sw		zero, 0(t0)
+	sync
+
+	li              t0, MEM_SDREFCFG
+	li		t1, 0x66000C24 /* Enable */
+	sw		t1, 0(t0)
+	sync
+
+	li              t0, MEM_SDWRMD0
+	li		t1, 0x00000033
+	sw		t1, 0(t0)
+	sync
+
+	li              t0, MEM_SDWRMD1
+	li		t1, 0x00000033
+	sw		t1, 0(t0)
+	sync
+
+	/*  Static memory controller */
+
+	/* RCE0 AMD 29LV640M MirrorBit Flash */
+	li              t0, MEM_STCFG0
+	li		t1, 0x00000003
+	sw		t1, 0(t0)
+
+	li		t0, MEM_STTIME0
+	li		t1, 0x22080b20
+	sw		t1, 0(t0)
+
+	li		t0, MEM_STADDR0
+	li		t1, 0x11E03F80
+	sw		t1, 0(t0)
+
+	/* RCE1 CPLD Board Logic */
+	li		t0, MEM_STCFG1
+	li		t1, 0x00000080
+	sw		t1, 0(t0)
+
+	li		t0, MEM_STTIME1
+	li		t1, 0x22080a20
+	sw		t1, 0(t0)
+
+	li		t0, MEM_STADDR1
+	li		t1, 0x10c03f00
+	sw		t1, 0(t0)
+
+	/* RCE3 PCMCIA 250ns */
+	li		t0, MEM_STCFG3
+	li		t1, 0x00000002
+	sw		t1, 0(t0)
+
+
+	li		t0, MEM_STTIME3
+	li		t1, 0x280E3E07
+	sw		t1, 0(t0)
+
+	li		t0, MEM_STADDR3
+	li		t1, 0x10000000
+	sw		t1, 0(t0)
+
+	sync
+
+	j	ra
+	nop
diff --git a/board/dbau1x00/u-boot.lds b/board/dbau1x00/u-boot.lds
new file mode 100644
index 0000000..a2d19a8
--- /dev/null
+++ b/board/dbau1x00/u-boot.lds
@@ -0,0 +1,68 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk 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
+ */
+
+/*
+OUTPUT_FORMAT("elf32-bigmips", "elf32-bigmips", "elf32-bigmips")
+*/
+OUTPUT_FORMAT("elf32-tradbigmips", "elf32-tradbigmips", "elf32-tradbigmips")
+OUTPUT_ARCH(mips)
+ENTRY(_start)
+SECTIONS
+{
+	. = 0x00000000;
+
+	. = ALIGN(4);
+	.text       :
+	{
+	  *(.text)
+	}
+
+	. = ALIGN(4);
+	.rodata  : { *(.rodata) }
+
+	. = ALIGN(4);
+	.data  : { *(.data) }
+
+	. = ALIGN(4);
+	.sdata  : { *(.sdata) }
+
+	_gp = ALIGN(16);
+
+	__got_start = .;
+	.got  : { *(.got) }
+	__got_end = .;
+
+	.sdata  : { *(.sdata) }
+
+	__u_boot_cmd_start = .;
+	.u_boot_cmd : { *(.u_boot_cmd) }
+	__u_boot_cmd_end = .;
+
+	uboot_end_data = .;
+	num_got_entries = (__got_end - __got_start) >> 2;
+
+	. = ALIGN(4);
+	.sbss  : { *(.sbss) }
+	.bss  : { *(.bss) }
+	uboot_end = .;
+}