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/*
* Copyright 2009 Freescale Semiconductor, Inc.
*
* 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 <ns16550.h>
#include <asm/io.h>
#include <nand.h>
u32 sysclk_tbl[] = {
33333000, 39999600, 49999500, 66666000,
83332500, 99999000, 133332000, 166665000
};
void board_init_f(ulong bootflag)
{
int px_spd;
u32 plat_ratio, bus_clk, sys_clk;
ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
ccsr_lbc_t *lbc = (void *)CONFIG_SYS_MPC85xx_LBC_ADDR;
#if defined(CONFIG_SYS_BR3_PRELIM) && defined(CONFIG_SYS_OR3_PRELIM)
/* for FPGA */
out_be32(&lbc->br3, CONFIG_SYS_BR3_PRELIM);
out_be32(&lbc->or3, CONFIG_SYS_OR3_PRELIM);
#else
#error CONFIG_SYS_BR3_PRELIM, CONFIG_SYS_OR3_PRELIM must be defined
#endif
/* initialize selected port with appropriate baud rate */
px_spd = in_8((unsigned char *)(PIXIS_BASE + PIXIS_SPD));
sys_clk = sysclk_tbl[px_spd & PIXIS_SPD_SYSCLK];
plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
bus_clk = sys_clk * plat_ratio / 2;
NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
bus_clk / 16 / CONFIG_BAUDRATE);
puts("\nNAND boot... ");
/* copy code to RAM and jump to it - this should not return */
/* NOTE - code has to be copied out of NAND buffer before
* other blocks can be read.
*/
relocate_code(CONFIG_SYS_NAND_U_BOOT_RELOC_SP, 0,
CONFIG_SYS_NAND_U_BOOT_RELOC);
}
void board_init_r(gd_t *gd, ulong dest_addr)
{
nand_boot();
}
void putc(char c)
{
if (c == '\n')
NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r');
NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c);
}
void puts(const char *str)
{
while (*str)
putc(*str++);
}
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