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authorwdenk <wdenk>2004-01-03 19:43:48 +0000
committerwdenk <wdenk>2004-01-03 19:43:48 +0000
commitc935d3bd8b1c7f681ad58e64bd0548e1b26a7d2f (patch)
tree2529369b185098e6d38627b7500d7450d9bab8f5 /board/altera/dk1s10/flash.c
parent3a473b2a6523db9cdf2b5aed22d9730b4ebc5693 (diff)
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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
Diffstat (limited to 'board/altera/dk1s10/flash.c')
-rw-r--r--board/altera/dk1s10/flash.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/board/altera/dk1s10/flash.c b/board/altera/dk1s10/flash.c
new file mode 100644
index 0000000..5c70933
--- /dev/null
+++ b/board/altera/dk1s10/flash.c
@@ -0,0 +1,62 @@
+/*
+ * (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 <nios.h>
+
+/*
+ * include common flash code (for altera boards)
+ */
+#include "../common/flash.c"
+
+/*---------------------------------------------------------------------*/
+#define BANKSZ (8 * 1024 * 1024)
+#define SECTSZ (64 * 1024)
+#define USERFLASH (2 * 1024 * 1024) /* bottom 2 MB for user */
+
+/*---------------------------------------------------------------------*/
+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 + FLASH_AMDLV065D;
+
+ 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);
+}