* Patch by George G. Davis, 02 Apr 2004:

  add support for Intel Assabet board

1 files changed, 121 insertions, 0 deletions

diff --git a/board/assabet/assabet.c b/board/assabet/assabet.c
new file mode 100644
index 0000000..0958c33
--- /dev/null
+++ b/board/assabet/assabet.c
@@ -0,0 +1,121 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * 2004 (c) MontaVista Software, Inc.
+ *
+ * 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 <SA-1100.h>
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Board dependent initialisation
+ */
+
+#define ECOR			0x8000
+#define ECOR_RESET		0x80
+#define ECOR_LEVEL_IRQ		0x40
+#define ECOR_WR_ATTRIB		0x04
+#define ECOR_ENABLE		0x01
+
+#define ECSR			0x8002
+#define ECSR_IOIS8		0x20
+#define ECSR_PWRDWN		0x04
+#define ECSR_INT		0x02
+#define SMC_IO_SHIFT		2
+#define NCR_0           	(*((volatile u_char *)(0x100000a0)))
+#define NCR_ENET_OSC_EN		(1<<3)
+
+static inline u8
+readb(volatile u8 * p)
+{
+	return *p;
+}
+
+static inline void
+writeb(u8 v, volatile u8 * p)
+{
+	*p = v;
+}
+
+static void
+smc_init(void)
+{
+	u8 ecor;
+	u8 ecsr;
+	volatile u8 *addr = (volatile u8 *)(0x18000000 + (1 << 25));
+
+	NCR_0 |= NCR_ENET_OSC_EN;
+	udelay(100);
+
+	ecor = readb(addr + (ECOR << SMC_IO_SHIFT)) & ~ECOR_RESET;
+	writeb(ecor | ECOR_RESET, addr + (ECOR << SMC_IO_SHIFT));
+	udelay(100);
+
+	/*
+	 * The device will ignore all writes to the enable bit while
+	 * reset is asserted, even if the reset bit is cleared in the
+	 * same write.  Must clear reset first, then enable the device.
+	 */
+	writeb(ecor, addr + (ECOR << SMC_IO_SHIFT));
+	writeb(ecor | ECOR_ENABLE, addr + (ECOR << SMC_IO_SHIFT));
+
+	/*
+	 * Set the appropriate byte/word mode.
+	 */
+	ecsr = readb(addr + (ECSR << SMC_IO_SHIFT)) & ~ECSR_IOIS8;
+	ecsr |= ECSR_IOIS8;
+	writeb(ecsr, addr + (ECSR << SMC_IO_SHIFT));
+	udelay(100);
+}
+
+static void
+neponset_init(void)
+{
+	smc_init();
+}
+
+int
+board_init(void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	gd->bd->bi_arch_number = 25;	/* Intel Assabet Board */
+	gd->bd->bi_boot_params = 0xc0000100;
+
+	neponset_init();
+
+	return 0;
+}
+
+int
+dram_init(void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+
+	return (0);
+}