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authorTsiChung Liew <Tsi-Chung.Liew@freescale.com>2008-10-22 11:38:21 +0000
committerJohn Rigby <jrigby@freescale.com>2008-11-03 09:45:58 -0700
commit536e7dac16769954915a484e682a2efb28699133 (patch)
tree62971477e14f4790541fa7bec56f3bbf54c0b3fa /board/freescale/m53017evb/m53017evb.c
parenta21d0c2cc9add8894d971ab791f4032f077db817 (diff)
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ColdFire: Add MCF5301x CPU and M53017EVB support
Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
Diffstat (limited to 'board/freescale/m53017evb/m53017evb.c')
-rw-r--r--board/freescale/m53017evb/m53017evb.c94
1 files changed, 94 insertions, 0 deletions
diff --git a/board/freescale/m53017evb/m53017evb.c b/board/freescale/m53017evb/m53017evb.c
new file mode 100644
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--- /dev/null
+++ b/board/freescale/m53017evb/m53017evb.c
@@ -0,0 +1,94 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright (C) 2004-2008 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ *
+ * 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 <config.h>
+#include <common.h>
+#include <asm/immap.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkboard(void)
+{
+ puts("Board: ");
+ puts("Freescale M53017EVB\n");
+ return 0;
+};
+
+phys_size_t initdram(int board_type)
+{
+ volatile sdram_t *sdram = (volatile sdram_t *)(MMAP_SDRAM);
+ u32 dramsize, i;
+
+ dramsize = CONFIG_SYS_SDRAM_SIZE * 0x100000;
+
+ for (i = 0x13; i < 0x20; i++) {
+ if (dramsize == (1 << i))
+ break;
+ }
+ i--;
+
+ sdram->cs0 = (CONFIG_SYS_SDRAM_BASE | i);
+#ifdef CONFIG_SYS_SDRAM_BASE1
+ sdram->cs1 = (CONFIG_SYS_SDRAM_BASE | i);
+#endif
+ sdram->cfg1 = CONFIG_SYS_SDRAM_CFG1;
+ sdram->cfg2 = CONFIG_SYS_SDRAM_CFG2;
+
+ udelay(500);
+
+ /* Issue PALL */
+ sdram->ctrl = (CONFIG_SYS_SDRAM_CTRL | 2);
+ asm("nop");
+
+ /* Perform two refresh cycles */
+ sdram->ctrl = CONFIG_SYS_SDRAM_CTRL | 4;
+ sdram->ctrl = CONFIG_SYS_SDRAM_CTRL | 4;
+ asm("nop");
+
+ /* Issue LEMR */
+ sdram->mode = CONFIG_SYS_SDRAM_MODE;
+ asm("nop");
+ sdram->mode = CONFIG_SYS_SDRAM_EMOD;
+ asm("nop");
+
+ sdram->ctrl = (CONFIG_SYS_SDRAM_CTRL | 2);
+ asm("nop");
+
+ sdram->ctrl = (CONFIG_SYS_SDRAM_CTRL & ~0x80000000) | 0x10000F00;
+ asm("nop");
+
+ udelay(100);
+
+ return dramsize;
+};
+
+int testdram(void)
+{
+ /* TODO: XXX XXX XXX */
+ printf("DRAM test not implemented!\n");
+
+ return (0);
+}