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author | TsiChung Liew <Tsi-Chung.Liew@freescale.com> | 2008-08-11 15:26:43 +0000 |
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committer | John Rigby <jrigby@freescale.com> | 2008-08-14 12:31:56 -0600 |
commit | 10db3a17a278dd3a27668b31cb32cdd1476e9513 (patch) | |
tree | 272e325441c7c218070802ba55da71aa76ff59d6 /board/m5282evb/m5282evb.c | |
parent | 56df091d391f74bbf2dc2f7931f9f3c8f23529e4 (diff) | |
download | u-boot-imx-10db3a17a278dd3a27668b31cb32cdd1476e9513.zip u-boot-imx-10db3a17a278dd3a27668b31cb32cdd1476e9513.tar.gz u-boot-imx-10db3a17a278dd3a27668b31cb32cdd1476e9513.tar.bz2 |
ColdFire: Move m5282evb from board to board/freescale
Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
Diffstat (limited to 'board/m5282evb/m5282evb.c')
-rw-r--r-- | board/m5282evb/m5282evb.c | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/board/m5282evb/m5282evb.c b/board/m5282evb/m5282evb.c deleted file mode 100644 index 50e5e77..0000000 --- a/board/m5282evb/m5282evb.c +++ /dev/null @@ -1,93 +0,0 @@ -/* - * (C) Copyright 2000-2003 - * 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/immap.h> - -DECLARE_GLOBAL_DATA_PTR; - -int checkboard (void) -{ - puts ("Board: Freescale M5282EVB Evaluation Board\n"); - return 0; -} - -phys_size_t initdram (int board_type) -{ - u32 dramsize, i, dramclk; - - dramsize = CFG_SDRAM_SIZE * 0x100000; - for (i = 0x13; i < 0x20; i++) { - if (dramsize == (1 << i)) - break; - } - i--; - - if (!(MCFSDRAMC_DACR0 & MCFSDRAMC_DACR_RE)) - { - dramclk = gd->bus_clk / (CFG_HZ * CFG_HZ); - - /* Initialize DRAM Control Register: DCR */ - MCFSDRAMC_DCR = (0 - | MCFSDRAMC_DCR_RTIM_6 - | MCFSDRAMC_DCR_RC((15 * dramclk)>>4)); - - /* Initialize DACR0 */ - MCFSDRAMC_DACR0 = (0 - | MCFSDRAMC_DACR_BASE(CFG_SDRAM_BASE) - | MCFSDRAMC_DACR_CASL(1) - | MCFSDRAMC_DACR_CBM(3) - | MCFSDRAMC_DACR_PS_32); - - /* Initialize DMR0 */ - MCFSDRAMC_DMR0 = (0 - | ((dramsize - 1) & 0xFFFC0000) - | MCFSDRAMC_DMR_V); - - /* Set IP (bit 3) in DACR */ - MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_IP; - - /* Wait 30ns to allow banks to precharge */ - for (i = 0; i < 5; i++) { - asm ("nop"); - } - - /* Write to this block to initiate precharge */ - *(u32 *)(CFG_SDRAM_BASE) = 0xA5A59696; - - /* Set RE (bit 15) in DACR */ - MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_RE; - - /* Wait for at least 8 auto refresh cycles to occur */ - for (i = 0; i < 2000; i++) { - asm(" nop"); - } - - /* Finish the configuration by issuing the IMRS. */ - MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_IMRS; - - /* Write to the SDRAM Mode Register */ - *(u32 *)(CFG_SDRAM_BASE + 0x400) = 0xA5A59696; - } - return dramsize; -} |