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author | Wolfgang Denk <wd@denx.de> | 2009-08-04 21:54:11 +0200 |
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committer | Wolfgang Denk <wd@denx.de> | 2009-08-04 21:54:11 +0200 |
commit | cb32ed1fc298875845f166d326a3f2704a0d5364 (patch) | |
tree | 0bfddffa6c6457f87fffd4dd49ebf9698d45bf87 /board/freescale/m5208evbe/m5208evbe.c | |
parent | 06bffc6ea52d4b390843d295d438b2037d12e5fd (diff) | |
parent | 052c08916532d1d9c2f69eb9229709c7b2fc1f02 (diff) | |
download | u-boot-imx-cb32ed1fc298875845f166d326a3f2704a0d5364.zip u-boot-imx-cb32ed1fc298875845f166d326a3f2704a0d5364.tar.gz u-boot-imx-cb32ed1fc298875845f166d326a3f2704a0d5364.tar.bz2 |
Merge branch 'next' of git://git.denx.de/u-boot-coldfire
Diffstat (limited to 'board/freescale/m5208evbe/m5208evbe.c')
-rw-r--r-- | board/freescale/m5208evbe/m5208evbe.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/board/freescale/m5208evbe/m5208evbe.c b/board/freescale/m5208evbe/m5208evbe.c new file mode 100644 index 0000000..5f99e2f --- /dev/null +++ b/board/freescale/m5208evbe/m5208evbe.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 M5208EVBe\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); +} |