mirror of
https://github.com/smaeul/u-boot.git
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ab86f72c35
Change the implementation for arm926 to relocate the code to an arbitrary address in RAM. Adapt the TX25 (i.MX25), magnesium board to test the changes. On the tx25 board TEXT_BASE is set to the final relocation address to prevent one more copying of u-boot code when relocating. More info see: doc/README.arm-relocation da850 board: Tested-by: Ben Gardiner <bengardiner@nanometrics.ca> Portions of this work were supported by funding from the CE Linux Forum. Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Ben Gardiner <bengardiner@nanometrics.ca>
93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
/*
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* Copyright (C) 2007 Sascha Hauer, Pengutronix
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* Copyright (C) 2008,2009 Eric Jarrige <jorasse@users.sourceforge.net>
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* Copyright (C) 2009 Ilya Yanok <yanok@emcraft.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/imx-regs.h>
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DECLARE_GLOBAL_DATA_PTR;
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int board_init (void)
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{
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struct gpio_regs *regs = (struct gpio_regs *)IMX_GPIO_BASE;
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#if defined(CONFIG_SYS_NAND_LARGEPAGE)
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struct system_control_regs *sc_regs =
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(struct system_control_regs *)IMX_SYSTEM_CTL_BASE;
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#endif
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gd->bd->bi_arch_number = MACH_TYPE_IMX27LITE;
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gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
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#ifdef CONFIG_MXC_UART
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mx27_uart_init_pins();
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#endif
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#ifdef CONFIG_FEC_MXC
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mx27_fec_init_pins();
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imx_gpio_mode((GPIO_PORTC | GPIO_OUT | GPIO_PUEN | GPIO_GPIO | 31));
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writel(readl(®s->port[PORTC].dr) | (1 << 31),
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®s->port[PORTC].dr);
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#endif
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#ifdef CONFIG_MXC_MMC
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#if defined(CONFIG_MAGNESIUM)
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mx27_sd1_init_pins();
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#else
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mx27_sd2_init_pins();
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#endif
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#endif
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#if defined(CONFIG_SYS_NAND_LARGEPAGE)
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/*
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* set in FMCR NF_FMS Bit(5) to 1
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* (NAND Flash with 2 Kbyte page size)
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*/
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writel(readl(&sc_regs->fmcr) | (1 << 5), &sc_regs->fmcr);
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#endif
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return 0;
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}
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int dram_init (void)
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{
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/* dram_init must store complete ramsize in gd->ram_size */
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gd->ram_size = get_ram_size((volatile void *)CONFIG_SYS_SDRAM_BASE,
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PHYS_SDRAM_1_SIZE);
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return 0;
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}
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void dram_init_banksize(void)
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{
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gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
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gd->bd->bi_dram[0].size = get_ram_size((volatile void *)CONFIG_SYS_SDRAM_BASE,
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PHYS_SDRAM_1_SIZE);
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#if CONFIG_NR_DRAM_BANKS > 1
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gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
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gd->bd->bi_dram[1].size = get_ram_size((volatile void *)PHYS_SDRAM_2,
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PHYS_SDRAM_2_SIZE);
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#endif
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}
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int checkboard(void)
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{
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puts ("Board: ");
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puts(CONFIG_BOARDNAME);
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return 0;
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}
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