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Diffstat (limited to 'board/lantec/lantec.c')
| -rw-r--r-- | board/lantec/lantec.c | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/board/lantec/lantec.c b/board/lantec/lantec.c deleted file mode 100644 index 6d3486c..0000000 --- a/board/lantec/lantec.c +++ /dev/null @@ -1,208 +0,0 @@ -/* - * (C) Copyright 2000, 2001 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * (C) Copyright 2001 - * Torsten Stevens, FHG IMS, stevens@ims.fhg.de - * Bruno Achauer, Exet AG, bruno@exet-ag.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 - */ - -/* - * Derived from ../tqm8xx/tqm8xx.c - */ - -#include <common.h> -#include <mpc8xx.h> - -/* ------------------------------------------------------------------------- */ - -static long int dram_size (long int, long int *, long int); - -/* ------------------------------------------------------------------------- */ - -#define _NOT_USED_ 0xFFFFFFFF - -const uint sdram_table[] = { - /* - * Single Read. (Offset 0 in UPMA RAM) - */ - 0x1f07fc04, 0xeeaefc04, 0x11adfc04, 0xefbbbc00, - 0x1ff77c47, /* last */ - /* - * SDRAM Initialization (offset 5 in UPMA RAM) - * - * This is no UPM entry point. The following definition uses - * the remaining space to establish an initialization - * sequence, which is executed by a RUN command. - * - */ - 0x1ff77c35, 0xefeabc34, 0x1fb57c35, /* last */ - /* - * Burst Read. (Offset 8 in UPMA RAM) - */ - 0x1f07fc04, 0xeeaefc04, 0x10adfc04, 0xf0affc00, - 0xf0affc00, 0xf1affc00, 0xefbbbc00, 0x1ff77c47, /* last */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - /* - * Single Write. (Offset 18 in UPMA RAM) - */ - 0x1f27fc04, 0xeeaebc00, 0x01b93c04, 0x1ff77c47, /* last */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - /* - * Burst Write. (Offset 20 in UPMA RAM) - */ - 0x1f07fc04, 0xeeaebc00, 0x10ad7c00, 0xf0affc00, - 0xf0affc00, 0xe1bbbc04, 0x1ff77c47, /* last */ - _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - /* - * Refresh (Offset 30 in UPMA RAM) - */ - 0x1ff5fc84, 0xfffffc04, 0xfffffc04, 0xfffffc04, - 0xfffffc84, 0xfffffc07, 0xfffffc07, /* last */ - _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - /* - * Exception. (Offset 3c in UPMA RAM) - */ - 0x7ffffc07, /* last */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, -}; - -/* ------------------------------------------------------------------------- */ - - -/* - * Check Board Identity: - * - * Test TQ ID string (TQM8xx...) - * If present, check for "L" type (no second DRAM bank), - * otherwise "L" type is assumed as default. - * - * Return 1 for "L" type, 0 else. - */ - -int checkboard (void) -{ - printf ("Board: Lantec special edition rev.%d\n", CONFIG_LANTEC); - return 0; -} - -/* ------------------------------------------------------------------------- */ - -phys_size_t initdram (int board_type) -{ - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile memctl8xx_t *memctl = &immap->im_memctl; - long int size_b0; - int i; - - /* - * Configure UPMA for SDRAM - */ - upmconfig (UPMA, (uint *) sdram_table, - sizeof (sdram_table) / sizeof (uint)); - - memctl->memc_mptpr = CONFIG_SYS_MPTPR_1BK_8K /* XXX CONFIG_SYS_MPTPR XXX */ ; - - /* burst length=4, burst type=sequential, CAS latency=2 */ - memctl->memc_mar = 0x00000088; - - /* - * Map controller bank 3 to the SDRAM bank at preliminary address. - */ - memctl->memc_or3 = CONFIG_SYS_OR3_PRELIM; - memctl->memc_br3 = CONFIG_SYS_BR3_PRELIM; - - /* initialize memory address register */ - memctl->memc_mamr = CONFIG_SYS_MAMR_8COL; /* refresh not enabled yet */ - - /* mode initialization (offset 5) */ - udelay (200); /* 0x80006105 */ - memctl->memc_mcr = - MCR_OP_RUN | MCR_MB_CS3 | MCR_MLCF (1) | MCR_MAD (0x05); - - /* run 2 refresh sequence with 4-beat refresh burst (offset 0x30) */ - udelay (1); /* 0x80006130 */ - memctl->memc_mcr = - MCR_OP_RUN | MCR_MB_CS3 | MCR_MLCF (1) | MCR_MAD (0x30); - udelay (1); /* 0x80006130 */ - memctl->memc_mcr = - MCR_OP_RUN | MCR_MB_CS3 | MCR_MLCF (1) | MCR_MAD (0x30); - - udelay (1); /* 0x80006106 */ - memctl->memc_mcr = - MCR_OP_RUN | MCR_MB_CS3 | MCR_MLCF (1) | MCR_MAD (0x06); - - memctl->memc_mamr |= MAMR_PTAE; /* refresh enabled */ - - udelay (200); - - /* Need at least 10 DRAM accesses to stabilize */ - for (i = 0; i < 10; ++i) { - volatile unsigned long *addr = - (volatile unsigned long *) SDRAM_BASE3_PRELIM; - unsigned long val; - - val = *(addr + i); - *(addr + i) = val; - } - - /* - * Check Bank 0 Memory Size for re-configuration - */ - size_b0 = dram_size (CONFIG_SYS_MAMR_8COL, - (long *) SDRAM_BASE3_PRELIM, SDRAM_MAX_SIZE); - - memctl->memc_mamr = CONFIG_SYS_MAMR_8COL | MAMR_PTAE; - - /* - * Final mapping: - */ - - memctl->memc_or3 = ((-size_b0) & 0xFFFF0000) | CONFIG_SYS_OR_TIMING_SDRAM; - memctl->memc_br3 = (CONFIG_SYS_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V; - udelay (1000); - - return (size_b0); -} - -/* ------------------------------------------------------------------------- */ - -/* - * Check memory range for valid RAM. A simple memory test determines - * the actually available RAM size between addresses `base' and - * `base + maxsize'. Some (not all) hardware errors are detected: - * - short between address lines - * - short between data lines - */ - -static long int dram_size (long int mamr_value, long int *base, - long int maxsize) -{ - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile memctl8xx_t *memctl = &immap->im_memctl; - - memctl->memc_mamr = mamr_value; - - return (get_ram_size (base, maxsize)); -} |