LXR uboot/board/Arcturus/ucp1020/spl

   1/*
   2 * Copyright 2013-2015 Arcturus Networks, Inc.
   3 *           http://www.arcturusnetworks.com/products/ucp1020/
   4 * based on board/freescale/p1_p2_rdb_pc/spl_minimal.c
   5 * original copyright follows:
   6 * Copyright 2011 Freescale Semiconductor, Inc.
   7 *
   8 * SPDX-License-Identifier:     GPL-2.0+
   9 */
  10
  11#include <common.h>
  12#include <ns16550.h>
  13#include <asm/io.h>
  14#include <nand.h>
  15#include <linux/compiler.h>
  16#include <asm/fsl_law.h>
  17#include <fsl_ddr_sdram.h>
  18#include <asm/global_data.h>
  19
  20DECLARE_GLOBAL_DATA_PTR;
  21
  22void board_init_f(ulong bootflag)
  23{
  24        u32 plat_ratio;
  25        ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
  26
  27#if defined(CONFIG_SYS_NAND_BR_PRELIM) && defined(CONFIG_SYS_NAND_OR_PRELIM)
  28        set_lbc_br(0, CONFIG_SYS_NAND_BR_PRELIM);
  29        set_lbc_or(0, CONFIG_SYS_NAND_OR_PRELIM);
  30#endif
  31
  32        /* initialize selected port with appropriate baud rate */
  33        plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
  34        plat_ratio >>= 1;
  35        gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
  36
  37        NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
  38                     gd->bus_clk / 16 / CONFIG_BAUDRATE);
  39
  40        puts("\nNAND boot... ");
  41
  42        /* copy code to RAM and jump to it - this should not return */
  43        /* NOTE - code has to be copied out of NAND buffer before
  44         * other blocks can be read.
  45         */
  46        relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
  47}
  48
  49void board_init_r(gd_t *gd, ulong dest_addr)
  50{
  51        puts("\nSecond program loader running in sram...");
  52        nand_boot();
  53}
  54
  55void putc(char c)
  56{
  57        if (c == '\n')
  58                NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r');
  59
  60        NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c);
  61}
  62
  63void puts(const char *str)
  64{
  65        while (*str)
  66                putc(*str++);
  67}
  68