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

1 files changed, 0 insertions, 226 deletions

diff --git a/board/dk1c20/flash.c b/board/dk1c20/flash.c
deleted file mode 100644
index c64f7dc..0000000
--- a/board/dk1c20/flash.c
+++ /dev/null
@@ -1,226 +0,0 @@
-/*
- * (C) Copyright 2000
- * 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>
-
-/*---------------------------------------------------------------------*/
-#define BANKSZ	(8 * 1024 * 1024)
-#define SECTSZ	(64 * 1024)
-#define USERFLASH (2 * 1024 * 1024)	/* bottom 2 MB for user */
-
-flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
-
-#define FLASH_WORD_SIZE unsigned char
-
-/*---------------------------------------------------------------------*/
-
-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;
-
-	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);
-}
-
-/*--------------------------------------------------------------------*/
-void flash_print_info (flash_info_t * info)
-{
-	int i, k;
-	unsigned long size;
-	int erased;
-	volatile unsigned char *flash;
-
-	printf ("  Size: %ld KB in %d Sectors\n",
-		info->size >> 10, info->sector_count);
-	printf ("  Sector Start Addresses:");
-	for (i = 0; i < info->sector_count; ++i) {
-
-		/* Check if whole sector is erased */
-		if (i != (info->sector_count - 1))
-			size = info->start[i + 1] - info->start[i];
-		else
-			size = info->start[0] + info->size - info->start[i];
-		erased = 1;
-		flash = (volatile unsigned char *) info->start[i];
-		for (k = 0; k < size; k++) {
-			if (*flash++ != 0xff) {
-				erased = 0;
-				break;
-			}
-		}
-
-		/* Print the info */
-		if ((i % 5) == 0)
-			printf ("\n   ");
-		printf (" %08lX%s%s", info->start[i], erased ? " E" : "  ",
-			info->protect[i] ? "RO " : "   ");
-	}
-	printf ("\n");
-}
-
-/*-------------------------------------------------------------------*/
-
-
-int flash_erase (flash_info_t * info, int s_first, int s_last)
-{
-	volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *) (info->start[0]);
-	volatile FLASH_WORD_SIZE *addr2;
-	int prot, sect;
-	int any = 0;
-	unsigned oldpri;
-	ulong start;
-
-	/* Some sanity checking */
-	if ((s_first < 0) || (s_first > s_last)) {
-		printf ("- no sectors to erase\n");
-		return 1;
-	}
-
-	prot = 0;
-	for (sect = s_first; sect <= s_last; ++sect) {
-		if (info->protect[sect]) {
-			prot++;
-		}
-	}
-	if (prot) {
-		printf ("- Warning: %d protected sectors will not be erased!\n",
-			prot);
-	} else {
-		printf ("\n");
-	}
-
-	/* NOTE: disabling interrupts on Nios can be very bad since it
-	 * also disables the LO_LIMIT exception. It's better here to
-	 * set the interrupt priority to 3 & restore it when we're done.
-	 */
-	oldpri = ipri (3);
-
-	/* It's ok to erase multiple sectors provided we don't delay more
-	 * than 50 usec between cmds ... at which point the erase time-out
-	 * occurs. So don't go and put printf() calls in the loop ... it
-	 * won't be very helpful ;-)
-	 */
-	for (sect = s_first; sect <= s_last; sect++) {
-		if (info->protect[sect] == 0) {	/* not protected */
-			addr2 = (FLASH_WORD_SIZE *) (info->start[sect]);
-			*addr = 0xaa;
-			*addr = 0x55;
-			*addr = 0x80;
-			*addr = 0xaa;
-			*addr = 0x55;
-			*addr2 = 0x30;
-			any = 1;
-		}
-	}
-
-	/* Now just wait for 0xff & provide some user feedback while
-	 * we wait.
-	 */
-	if (any) {
-		addr2 = (FLASH_WORD_SIZE *) (info->start[sect]);
-		start = get_timer (0);
-		while (*addr2 != 0xff) {
-			udelay (1000 * 1000);
-			putc ('.');
-			if (get_timer (start) > CFG_FLASH_ERASE_TOUT) {
-				printf ("timeout\n");
-				return 1;
-			}
-		}
-		printf ("\n");
-	}
-
-	/* Restore interrupt priority */
-	ipri (oldpri);
-
-	return 0;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-
-int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
-{
-
-	vu_char *cmd = (vu_char *) info->start[0];
-	vu_char *dst = (vu_char *) addr;
-	unsigned char b;
-	unsigned oldpri;
-	ulong start;
-
-	while (cnt) {
-		/* Check for sufficient erase */
-		b = *src;
-		if ((*dst & b) != b) {
-			printf ("%02x : %02x\n", *dst, b);
-			return (2);
-		}
-
-		/* Disable interrupts other than window underflow
-		 * (interrupt priority 2)
-		 */
-		oldpri = ipri (3);
-		*cmd = 0xaa;
-		*cmd = 0x55;
-		*cmd = 0xa0;
-		*dst = b;
-
-		/* Verify write */
-		start = get_timer (0);
-		while (*dst != b) {
-			if (get_timer (start) > CFG_FLASH_WRITE_TOUT) {
-				ipri (oldpri);
-				return 1;
-			}
-		}
-		dst++;
-		src++;
-		cnt--;
-		ipri (oldpri);
-	}
-
-	return (0);
-}