From 1ac559d4aa358f63b48c62b564224c06feeb4e36 Mon Sep 17 00:00:00 2001 From: TsiChungLiew Date: Mon, 14 Jan 2008 17:19:54 -0600 Subject: ColdFire: Add M5373EVB platform support - 1 Signed-off-by: TsiChungLiew Signed-off by: John Rigby --- board/freescale/m5373evb/m5373evb.c | 88 +++++++++++++++++++++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 board/freescale/m5373evb/m5373evb.c (limited to 'board/freescale/m5373evb/m5373evb.c') diff --git a/board/freescale/m5373evb/m5373evb.c b/board/freescale/m5373evb/m5373evb.c new file mode 100644 index 0000000..26b87b9 --- /dev/null +++ b/board/freescale/m5373evb/m5373evb.c @@ -0,0 +1,88 @@ +/* + * (C) Copyright 2000-2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright (C) 2004-2007 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 +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +int checkboard(void) +{ + puts("Board: "); + puts("Freescale FireEngine 5373 EVB\n"); + return 0; +}; + +long int initdram(int board_type) +{ + volatile sdram_t *sdram = (volatile sdram_t *)(MMAP_SDRAM); + u32 dramsize, i; + + dramsize = CFG_SDRAM_SIZE * 0x100000; + + for (i = 0x13; i < 0x20; i++) { + if (dramsize == (1 << i)) + break; + } + i--; + + sdram->cs0 = (CFG_SDRAM_BASE | i); + sdram->cfg1 = CFG_SDRAM_CFG1; + sdram->cfg2 = CFG_SDRAM_CFG2; + + /* Issue PALL */ + sdram->ctrl = CFG_SDRAM_CTRL | 2; + + /* Issue LEMR */ + sdram->mode = CFG_SDRAM_EMOD; + sdram->mode = (CFG_SDRAM_MODE | 0x04000000); + + udelay(500); + + /* Issue PALL */ + sdram->ctrl = (CFG_SDRAM_CTRL | 2); + + /* Perform two refresh cycles */ + sdram->ctrl = CFG_SDRAM_CTRL | 4; + sdram->ctrl = CFG_SDRAM_CTRL | 4; + + sdram->mode = CFG_SDRAM_MODE; + + sdram->ctrl = (CFG_SDRAM_CTRL & ~0x80000000) | 0x10000c00; + + udelay(100); + + return dramsize; +}; + +int testdram(void) +{ + /* TODO: XXX XXX XXX */ + printf("DRAM test not implemented!\n"); + + return (0); +} -- cgit v1.1