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author | wdenk <wdenk> | 2004-07-01 16:30:44 +0000 |
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committer | wdenk <wdenk> | 2004-07-01 16:30:44 +0000 |
commit | 39539887ea7dc298c98ac1fddd38551dfa335120 (patch) | |
tree | 31e3bc0bd93cead0c977b8fd26ede7d06f70e0a1 /board/evb4510/evb4510.c | |
parent | e94d2cd9d1dc0f58b18e7c31fc9345129b1a44fb (diff) | |
download | u-boot-imx-39539887ea7dc298c98ac1fddd38551dfa335120.zip u-boot-imx-39539887ea7dc298c98ac1fddd38551dfa335120.tar.gz u-boot-imx-39539887ea7dc298c98ac1fddd38551dfa335120.tar.bz2 |
* Code cleanup (ARM mostly)
* Patch by Curt Brune, 17 May 2004:
- Add support for Samsung S3C4510B CPU (ARM7tdmi based SoC)
- Add support for ESPD-Inc. EVB4510 Board
Diffstat (limited to 'board/evb4510/evb4510.c')
-rw-r--r-- | board/evb4510/evb4510.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/board/evb4510/evb4510.c b/board/evb4510/evb4510.c new file mode 100644 index 0000000..72d1f4e --- /dev/null +++ b/board/evb4510/evb4510.c @@ -0,0 +1,86 @@ +/* + * Copyright (c) 2004 Cucy Systems (http://www.cucy.com) + * Curt Brune <curt@cucy.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 <common.h> +#include <asm/hardware.h> +#include <command.h> + +/* ------------------------------------------------------------------------- */ + + +#define PUT_LED(val) (PUT_REG(REG_IOPDATA, (~val)&0xFF)) +#define GET_LED() ((~GET_REG( REG_IOPDATA)) & 0xFF) +#define SET_LED(val) { u32 led = GET_LED(); led |= 1 << (val); PUT_LED( led); } +#define CLR_LED(val) { u32 led = GET_LED(); led &= ~(1 << (val)); PUT_LED( led); } + +/* + * Miscelaneous platform dependent initialisations + */ + +int board_init (void) +{ + DECLARE_GLOBAL_DATA_PTR; + + icache_enable(); + + /* address for the kernel command line */ + gd->bd->bi_boot_params = 0x800; + + /* enable board LEDs for output */ + PUT_REG( REG_IOPDATA, 0x0); + PUT_REG( REG_IOPMODE, 0xFFFF); + PUT_REG( REG_IOPDATA, 0xFF); + + /* enable LED 7 to show we're alive */ + SET_LED( 7); + + /* configure free running timer 1 */ + /* Stop timer 1 */ + CLR_REG( REG_TMOD, TM1_RUN); + + /* Configure for toggle mode */ + SET_REG( REG_TMOD, TM1_TOGGLE); + + /* Load Timer data register with count down value */ + PUT_REG( REG_TDATA1, 0xFFFFFFFF); + + /* Clear timer counter register */ + PUT_REG( REG_TCNT1, 0x0); + + /* Start timer -- count down timer */ + SET_REG( REG_TMOD, TM1_RUN); + + return 0; +} + +int dram_init (void) +{ + DECLARE_GLOBAL_DATA_PTR; + gd->bd->bi_dram[0].start = PHYS_SDRAM_1; + gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; +#if CONFIG_NR_DRAM_BANKS == 2 + gd->bd->bi_dram[1].start = PHYS_SDRAM_2; + gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE; +#endif + return 0; +} |