Merge with /home/wd/git/u-boot/custodian/u-boot-blackfin

1 files changed, 276 insertions, 0 deletions

diff --git a/board/bf533-stamp/bf533-stamp.c b/board/bf533-stamp/bf533-stamp.c
new file mode 100644
index 0000000..2f6e751
--- /dev/null
+++ b/board/bf533-stamp/bf533-stamp.c
@@ -0,0 +1,276 @@
+/*
+ * U-boot - stamp.c STAMP board specific routines
+ *
+ * Copyright (c) 2005 blackfin.uclinux.org
+ *
+ * (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 <asm/mem_init.h>
+#include <asm/io.h>
+#include "bf533-stamp.h"
+
+#define STATUS_LED_OFF 0
+#define STATUS_LED_ON  1
+
+#ifdef CONFIG_SHOW_BOOT_PROGRESS
+# define SHOW_BOOT_PROGRESS(arg)	show_boot_progress(arg)
+#else
+# define SHOW_BOOT_PROGRESS(arg)
+#endif
+
+int checkboard(void)
+{
+#if (BFIN_CPU == ADSP_BF531)
+	printf("CPU:   ADSP BF531 Rev.: 0.%d\n", *pCHIPID >> 28);
+#elif (BFIN_CPU == ADSP_BF532)
+	printf("CPU:   ADSP BF532 Rev.: 0.%d\n", *pCHIPID >> 28);
+#else
+	printf("CPU:   ADSP BF533 Rev.: 0.%d\n", *pCHIPID >> 28);
+#endif
+	printf("Board: ADI BF533 Stamp board\n");
+	printf("       Support: http://blackfin.uclinux.org/\n");
+	return 0;
+}
+
+long int initdram(int board_type)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+#ifdef DEBUG
+	printf("SDRAM attributes:\n");
+	printf
+	    ("  tRCD:%d Cycles; tRP:%d Cycles; tRAS:%d Cycles; tWR:%d Cycles; "
+	     "CAS Latency:%d cycles\n", (SDRAM_tRCD >> 15), (SDRAM_tRP >> 11),
+	     (SDRAM_tRAS >> 6), (SDRAM_tWR >> 19), (SDRAM_CL >> 2));
+	printf("SDRAM Begin: 0x%x\n", CFG_SDRAM_BASE);
+	printf("Bank size = %d MB\n", 128);
+#endif
+	gd->bd->bi_memstart = CFG_SDRAM_BASE;
+	gd->bd->bi_memsize = CFG_MAX_RAM_SIZE;
+	return (gd->bd->bi_memsize);
+}
+
+void swap_to(int device_id)
+{
+
+	if (device_id == ETHERNET) {
+		*pFIO_DIR = PF0;
+		sync();
+		*pFIO_FLAG_S = PF0;
+		sync();
+	} else if (device_id == FLASH) {
+		*pFIO_DIR = (PF4 | PF3 | PF2 | PF1 | PF0);
+		*pFIO_FLAG_S = (PF4 | PF3 | PF2);
+		*pFIO_MASKA_D = (PF8 | PF6 | PF5);
+		*pFIO_MASKB_D = (PF7);
+		*pFIO_POLAR = (PF8 | PF6 | PF5);
+		*pFIO_EDGE = (PF8 | PF7 | PF6 | PF5);
+		*pFIO_INEN = (PF8 | PF7 | PF6 | PF5);
+		*pFIO_FLAG_D = (PF4 | PF3 | PF2);
+		sync();
+	} else {
+		printf("Unknown bank to switch\n");
+	}
+
+	return;
+}
+
+#if defined(CONFIG_MISC_INIT_R)
+/* miscellaneous platform dependent initialisations */
+int misc_init_r(void)
+{
+	int i;
+	int cf_stat = 0;
+
+	/* Check whether CF card is inserted */
+	*pFIO_EDGE = FIO_EDGE_CF_BITS;
+	*pFIO_POLAR = FIO_POLAR_CF_BITS;
+	for (i = 0; i < 0x300; i++)
+		asm("nop;");
+
+	if ((*pFIO_FLAG_S) & CF_STAT_BITS) {
+		cf_stat = 0;
+	} else {
+		cf_stat = 1;
+	}
+
+	*pFIO_EDGE = FIO_EDGE_BITS;
+	*pFIO_POLAR = FIO_POLAR_BITS;
+
+	if (cf_stat) {
+		printf("Booting from COMPACT flash\n");
+
+		/* Set cycle time for CF */
+		*(volatile unsigned long *)ambctl1 = CF_AMBCTL1VAL;
+
+		for (i = 0; i < 0x1000; i++)
+			asm("nop;");
+		for (i = 0; i < 0x1000; i++)
+			asm("nop;");
+		for (i = 0; i < 0x1000; i++)
+			asm("nop;");
+
+		serial_setbrg();
+		ide_init();
+
+		setenv("bootargs", "");
+		setenv("bootcmd",
+		       "fatload ide 0:1 0x1000000 uImage-stamp;bootm 0x1000000;bootm 0x20100000");
+	} else {
+		printf("Booting from FLASH\n");
+	}
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_STAMP_CF
+
+void cf_outb(unsigned char val, volatile unsigned char *addr)
+{
+	/*
+	 * Set PF1 PF0 respectively to 0 1 to divert address
+	 * to the expansion memory banks
+	 */
+	*pFIO_FLAG_S = CF_PF0;
+	*pFIO_FLAG_C = CF_PF1;
+	sync();
+
+	*(addr) = val;
+	sync();
+
+	/* Setback PF1 PF0 to 0 0 to address external
+	 * memory banks  */
+	*(volatile unsigned short *)pFIO_FLAG_C = CF_PF1_PF0;
+	sync();
+}
+
+unsigned char cf_inb(volatile unsigned char *addr)
+{
+	volatile unsigned char c;
+
+	*pFIO_FLAG_S = CF_PF0;
+	*pFIO_FLAG_C = CF_PF1;
+	sync();
+
+	c = *(addr);
+	sync();
+
+	*pFIO_FLAG_C = CF_PF1_PF0;
+	sync();
+
+	return c;
+}
+
+void cf_insw(unsigned short *sect_buf, unsigned short *addr, int words)
+{
+	int i;
+
+	*pFIO_FLAG_S = CF_PF0;
+	*pFIO_FLAG_C = CF_PF1;
+	sync();
+
+	for (i = 0; i < words; i++) {
+		*(sect_buf + i) = *(addr);
+		sync();
+	}
+
+	*pFIO_FLAG_C = CF_PF1_PF0;
+	sync();
+}
+
+void cf_outsw(unsigned short *addr, unsigned short *sect_buf, int words)
+{
+	int i;
+
+	*pFIO_FLAG_S = CF_PF0;
+	*pFIO_FLAG_C = CF_PF1;
+	sync();
+
+	for (i = 0; i < words; i++) {
+		*(addr) = *(sect_buf + i);
+		sync();
+	}
+
+	*pFIO_FLAG_C = CF_PF1_PF0;
+	sync();
+}
+#endif
+
+void stamp_led_set(int LED1, int LED2, int LED3)
+{
+	*pFIO_INEN &= ~(PF2 | PF3 | PF4);
+	*pFIO_DIR |= (PF2 | PF3 | PF4);
+
+	if (LED1 == STATUS_LED_OFF)
+		*pFIO_FLAG_S = PF2;
+	else
+		*pFIO_FLAG_C = PF2;
+	if (LED2 == STATUS_LED_OFF)
+		*pFIO_FLAG_S = PF3;
+	else
+		*pFIO_FLAG_C = PF3;
+	if (LED3 == STATUS_LED_OFF)
+		*pFIO_FLAG_S = PF4;
+	else
+		*pFIO_FLAG_C = PF4;
+	sync();
+}
+
+void show_boot_progress(int status)
+{
+	switch (status) {
+	case 1:
+		stamp_led_set(STATUS_LED_OFF, STATUS_LED_OFF, STATUS_LED_ON);
+		break;
+	case 2:
+		stamp_led_set(STATUS_LED_OFF, STATUS_LED_ON, STATUS_LED_OFF);
+		break;
+	case 3:
+		stamp_led_set(STATUS_LED_OFF, STATUS_LED_ON, STATUS_LED_ON);
+		break;
+	case 4:
+		stamp_led_set(STATUS_LED_ON, STATUS_LED_OFF, STATUS_LED_OFF);
+		break;
+	case 5:
+	case 6:
+		stamp_led_set(STATUS_LED_ON, STATUS_LED_OFF, STATUS_LED_ON);
+		break;
+	case 7:
+	case 8:
+		stamp_led_set(STATUS_LED_ON, STATUS_LED_ON, STATUS_LED_OFF);
+		break;
+	case 9:
+	case 10:
+	case 11:
+	case 12:
+	case 13:
+	case 14:
+	case 15:
+		stamp_led_set(STATUS_LED_OFF, STATUS_LED_OFF, STATUS_LED_OFF);
+		break;
+	default:
+		stamp_led_set(STATUS_LED_ON, STATUS_LED_ON, STATUS_LED_ON);
+		break;
+	}
+}