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author | wdenk <wdenk> | 2003-06-28 17:24:46 +0000 |
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committer | wdenk <wdenk> | 2003-06-28 17:24:46 +0000 |
commit | d1cbe85b084ce543ba0b09def03a1b20940e6c03 (patch) | |
tree | 1cbfceb46952e902208d58595d163143d6038e8a /board/sl8245/sl8245.c | |
parent | 8bde7f776c77b343aca29b8c7b58464d915ac245 (diff) | |
download | u-boot-imx-d1cbe85b084ce543ba0b09def03a1b20940e6c03.zip u-boot-imx-d1cbe85b084ce543ba0b09def03a1b20940e6c03.tar.gz u-boot-imx-d1cbe85b084ce543ba0b09def03a1b20940e6c03.tar.bz2 |
Merge from "stable branch", tag LABEL_2003_06_28_1800-stable:
- Allow to call sysmon function interactively
- PIC on LWMON board needs delay after power-on
- Add missing RSR definitions for MPC8xx
- Improve log buffer handling: guarantee clean reset after power-on
- Add support for EXBITGEN board
- Add support for SL8245 board
Diffstat (limited to 'board/sl8245/sl8245.c')
-rw-r--r-- | board/sl8245/sl8245.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/board/sl8245/sl8245.c b/board/sl8245/sl8245.c new file mode 100644 index 0000000..1a30b4c --- /dev/null +++ b/board/sl8245/sl8245.c @@ -0,0 +1,86 @@ +/* + * (C) Copyright 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 <mpc824x.h> + +int checkboard (void) +{ + ulong busfreq = get_bus_freq(0); + char buf[32]; + + printf("Board: SL8245, local bus @ %s MHz\n", strmhz(buf, busfreq)); + return 0; +} + +long int initdram (int board_type) +{ +#ifndef CFG_RAMBOOT + int i, cnt; + volatile uchar * base= CFG_SDRAM_BASE; + volatile ulong * addr; + ulong save[32]; + ulong val, ret = 0; + + for (i=0, cnt=(CFG_MAX_RAM_SIZE / sizeof(long)) >> 1; cnt > 0; cnt >>= 1) { + addr = (volatile ulong *)base + cnt; + save[i++] = *addr; + *addr = ~cnt; + } + + addr = (volatile ulong *)base; + save[i] = *addr; + *addr = 0; + + if (*addr != 0) { + *addr = save[i]; + goto Done; + } + + for (cnt = 1; cnt < CFG_MAX_RAM_SIZE / sizeof(long); cnt <<= 1) { + addr = (volatile ulong *)base + cnt; + val = *addr; + *addr = save[--i]; + if (val != ~cnt) { + ulong new_bank0_end = cnt * sizeof(long) - 1; + ulong mear1 = mpc824x_mpc107_getreg(MEAR1); + ulong emear1 = mpc824x_mpc107_getreg(EMEAR1); + mear1 = (mear1 & 0xFFFFFF00) | + ((new_bank0_end & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT); + emear1 = (emear1 & 0xFFFFFF00) | + ((new_bank0_end & MICR_ADDR_MASK) >> MICR_EADDR_SHIFT); + mpc824x_mpc107_setreg(MEAR1, mear1); + mpc824x_mpc107_setreg(EMEAR1, emear1); + + ret = cnt * sizeof(long); + goto Done; + } + } + + ret = CFG_MAX_RAM_SIZE; +Done: + return ret; +#else + return CFG_MAX_RAM_SIZE; +#endif +} |