Initial revision

1 files changed, 227 insertions, 0 deletions

diff --git a/board/cradle/cradle.c b/board/cradle/cradle.c
new file mode 100644
index 0000000..f599a31
--- /dev/null
+++ b/board/cradle/cradle.c
@@ -0,0 +1,227 @@
+/*
+ * (C) Copyright 2002
+ * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.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 <asm/arch/pxa-regs.h>
+#include <common.h>
+
+/* ------------------------------------------------------------------------- */
+
+
+/* local prototypes */
+void set_led (int led, int color);
+void error_code_halt (int code);
+int init_sio (int led, unsigned long base);
+inline void cradle_outb (unsigned short val, unsigned long base,
+			 unsigned long reg);
+inline unsigned char cradle_inb (unsigned long base, unsigned long reg);
+inline void sleep (int i);
+
+inline void
+/**********************************************************/
+sleep (int i)
+/**********************************************************/
+{
+	while (i--) {
+		udelay (1000000);
+	}
+}
+
+void
+/**********************************************************/
+error_code_halt (int code)
+/**********************************************************/
+{
+	while (1) {
+		led_code (code, RED);
+		sleep (1);
+		led_code (0, OFF);
+		sleep (1);
+	}
+}
+
+void
+/**********************************************************/
+led_code (int code, int color)
+/**********************************************************/
+{
+	int i;
+
+	code &= 0xf;		/* only 4 leds */
+
+	for (i = 0; i < 4; i++) {
+		if (code & (1 << i)) {
+			set_led (i, color);
+		} else {
+			set_led (i, OFF);
+		}
+	}
+}
+
+void
+/**********************************************************/
+set_led (int led, int color)
+/**********************************************************/
+{
+	int shift = led * 2;
+	unsigned long mask = 0x3 << shift;
+
+	CRADLE_LED_CLR_REG = mask;	/* clear bits */
+	CRADLE_LED_SET_REG = (color << shift);	/* set bits */
+	udelay (5000);
+}
+
+inline void
+/**********************************************************/
+cradle_outb (unsigned short val, unsigned long base, unsigned long reg)
+/**********************************************************/
+{
+	*(volatile unsigned short *) (base + (reg * 2)) = val;
+}
+
+inline unsigned char
+/**********************************************************/
+cradle_inb (unsigned long base, unsigned long reg)
+/**********************************************************/
+{
+	unsigned short val;
+
+	val = *(volatile unsigned short *) (base + (reg * 2));
+	return (val & 0xff);
+}
+
+int
+/**********************************************************/
+init_sio (int led, unsigned long base)
+/**********************************************************/
+{
+	unsigned char val;
+
+	set_led (led, YELLOW);
+	val = cradle_inb (base, CRADLE_SIO_INDEX);
+	val = cradle_inb (base, CRADLE_SIO_INDEX);
+	if (val != 0) {
+		set_led (led, RED);
+		return -1;
+	}
+
+	/* map SCC2 to COM1 */
+	cradle_outb (0x01, base, CRADLE_SIO_INDEX);
+	cradle_outb (0x00, base, CRADLE_SIO_DATA);
+
+	/* enable SCC2 extended regs */
+	cradle_outb (0x40, base, CRADLE_SIO_INDEX);
+	cradle_outb (0xa0, base, CRADLE_SIO_DATA);
+
+	/* enable SCC2 clock multiplier */
+	cradle_outb (0x51, base, CRADLE_SIO_INDEX);
+	cradle_outb (0x04, base, CRADLE_SIO_DATA);
+
+	/* enable SCC2 */
+	cradle_outb (0x00, base, CRADLE_SIO_INDEX);
+	cradle_outb (0x04, base, CRADLE_SIO_DATA);
+
+	/* map SCC2 DMA to channel 0 */
+	cradle_outb (0x4f, base, CRADLE_SIO_INDEX);
+	cradle_outb (0x09, base, CRADLE_SIO_DATA);
+
+	/* read ID from SIO to check operation */
+	cradle_outb (0xe4, base, 0x3f8 + 0x3);
+	val = cradle_inb (base, 0x3f8 + 0x0);
+	if ((val & 0xf0) != 0x20) {
+		set_led (led, RED);
+		/* disable SCC2 */
+		cradle_outb (0, base, CRADLE_SIO_INDEX);
+		cradle_outb (0, base, CRADLE_SIO_DATA);
+		return -1;
+	}
+	/* set back to bank 0 */
+	cradle_outb (0, base, 0x3f8 + 0x3);
+	set_led (led, GREEN);
+	return 0;
+}
+
+/*
+ * Miscelaneous platform dependent initialisations
+ */
+
+int
+/**********************************************************/
+board_post_init (void)
+/**********************************************************/
+{
+	return (0);
+}
+
+int
+/**********************************************************/
+board_init (void)
+/**********************************************************/
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	led_code (0xf, YELLOW);
+
+	/* arch number of HHP Cradle */
+	gd->bd->bi_arch_number = 174;
+
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = 0xa0000100;
+
+	/* Init SIOs to enable SCC2 */
+	udelay (100000);		/* delay makes it look neat */
+	init_sio (0, CRADLE_SIO1_PHYS);
+	udelay (100000);
+	init_sio (1, CRADLE_SIO2_PHYS);
+	udelay (100000);
+	init_sio (2, CRADLE_SIO3_PHYS);
+	udelay (100000);
+	set_led (3, GREEN);
+
+	return 1;
+}
+
+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;
+	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
+	gd->bd->bi_dram[1].size  = PHYS_SDRAM_2_SIZE;
+	gd->bd->bi_dram[2].start = PHYS_SDRAM_3;
+	gd->bd->bi_dram[2].size  = PHYS_SDRAM_3_SIZE;
+	gd->bd->bi_dram[3].start = PHYS_SDRAM_4;
+	gd->bd->bi_dram[3].size  = PHYS_SDRAM_4_SIZE;
+
+	return (PHYS_SDRAM_1_SIZE +
+		PHYS_SDRAM_2_SIZE +
+		PHYS_SDRAM_3_SIZE +
+		PHYS_SDRAM_4_SIZE );
+}