upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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83 lines
2.2 KiB
83 lines
2.2 KiB
14 years ago
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/*
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* Copyright 2009-2010 Freescale Semiconductor, Inc.
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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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*
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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 <ns16550.h>
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#include <asm/io.h>
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#include <nand.h>
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u32 sysclk_tbl[] = {
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33333000, 39999600, 49999500, 66666000,
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83332500, 99999000, 133332000, 166665000
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};
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void board_init_f(ulong bootflag)
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{
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int px_spd;
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u32 plat_ratio, bus_clk, sys_clk;
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ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
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#if defined(CONFIG_SYS_BR3_PRELIM) && defined(CONFIG_SYS_OR3_PRELIM)
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/* for FPGA */
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set_lbc_br(3, CONFIG_SYS_BR3_PRELIM);
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set_lbc_or(3, CONFIG_SYS_OR3_PRELIM);
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#else
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#error CONFIG_SYS_BR3_PRELIM, CONFIG_SYS_OR3_PRELIM must be defined
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#endif
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/* initialize selected port with appropriate baud rate */
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px_spd = in_8((unsigned char *)(PIXIS_BASE + PIXIS_SPD));
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sys_clk = sysclk_tbl[px_spd & PIXIS_SPD_SYSCLK_MASK];
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plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
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bus_clk = sys_clk * plat_ratio / 2;
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NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
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bus_clk / 16 / CONFIG_BAUDRATE);
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puts("\nNAND boot... ");
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/* copy code to RAM and jump to it - this should not return */
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/* NOTE - code has to be copied out of NAND buffer before
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* other blocks can be read.
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*/
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relocate_code(CONFIG_SYS_NAND_U_BOOT_RELOC_SP, 0,
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CONFIG_SYS_NAND_U_BOOT_RELOC);
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}
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void board_init_r(gd_t *gd, ulong dest_addr)
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{
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nand_boot();
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}
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void putc(char c)
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{
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if (c == '\n')
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NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r');
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NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c);
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}
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void puts(const char *str)
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{
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while (*str)
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putc(*str++);
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}
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