LXR uboot/board/freescale/c29xpcie/spl

   1/* Copyright 2013 Freescale Semiconductor, Inc.
   2 *
   3 * SPDX-License-Identifier:    GPL-2.0+
   4 */
   5
   6#include <common.h>
   7#include <mpc85xx.h>
   8#include <asm/io.h>
   9#include <ns16550.h>
  10#include <nand.h>
  11#include <asm/mmu.h>
  12#include <asm/immap_85xx.h>
  13#include <asm/fsl_law.h>
  14#include <asm/global_data.h>
  15
  16DECLARE_GLOBAL_DATA_PTR;
  17
  18void board_init_f(ulong bootflag)
  19{
  20        u32 plat_ratio;
  21        ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
  22
  23#if defined(CONFIG_SYS_NAND_BR_PRELIM) && defined(CONFIG_SYS_NAND_OR_PRELIM)
  24        set_lbc_br(0, CONFIG_SYS_NAND_BR_PRELIM);
  25        set_lbc_or(0, CONFIG_SYS_NAND_OR_PRELIM);
  26#endif
  27
  28        /* initialize selected port with appropriate baud rate */
  29        plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
  30        plat_ratio >>= 1;
  31        gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
  32
  33        NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
  34                     gd->bus_clk / 16 / CONFIG_BAUDRATE);
  35
  36        puts("\nNAND boot...\n");
  37
  38        /* copy code to RAM and jump to it - this should not return */
  39        /* NOTE - code has to be copied out of NAND buffer before
  40         * other blocks can be read.
  41         */
  42        relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
  43}
  44
  45void board_init_r(gd_t *gd, ulong dest_addr)
  46{
  47        puts("SPL\n");
  48        nand_boot();
  49}
  50
  51void putc(char c)
  52{
  53        if (c == '\n')
  54                NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r');
  55
  56        NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c);
  57}
  58
  59void puts(const char *str)
  60{
  61        while (*str)
  62                putc(*str++);
  63}
  64