LXR uboot/board/Arcturus/ucp1020/spl.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright 2013-2015 Arcturus Networks, Inc.
   4 *           http://www.arcturusnetworks.com/products/ucp1020/
   5 * based on board/freescale/p1_p2_rdb_pc/spl.c
   6 * original copyright follows:
   7 * Copyright 2013 Freescale Semiconductor, Inc.
   8 */
   9
  10#include <common.h>
  11#include <clock_legacy.h>
  12#include <console.h>
  13#include <env.h>
  14#include <env_internal.h>
  15#include <init.h>
  16#include <ns16550.h>
  17#include <malloc.h>
  18#include <mmc.h>
  19#include <nand.h>
  20#include <i2c.h>
  21#include <fsl_esdhc.h>
  22#include <spi_flash.h>
  23
  24DECLARE_GLOBAL_DATA_PTR;
  25
  26static const u32 sysclk_tbl[] = {
  27        66666000, 7499900, 83332500, 8999900,
  28        99999000, 11111000, 12499800, 13333200
  29};
  30
  31phys_size_t get_effective_memsize(void)
  32{
  33        return CONFIG_SYS_L2_SIZE;
  34}
  35
  36void board_init_f(ulong bootflag)
  37{
  38        u32 plat_ratio, bus_clk;
  39        ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
  40
  41        console_init_f();
  42
  43        /* Set pmuxcr to allow both i2c1 and i2c2 */
  44        setbits_be32(&gur->pmuxcr, in_be32(&gur->pmuxcr) | 0x1000);
  45        setbits_be32(&gur->pmuxcr,
  46                     in_be32(&gur->pmuxcr) | MPC85xx_PMUXCR_SD_DATA);
  47
  48        /* Read back the register to synchronize the write. */
  49        in_be32(&gur->pmuxcr);
  50
  51#ifdef CONFIG_SPL_SPI_BOOT
  52        clrbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_SD_DATA);
  53#endif
  54
  55        /* initialize selected port with appropriate baud rate */
  56        plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
  57        plat_ratio >>= 1;
  58        bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
  59        gd->bus_clk = bus_clk;
  60
  61        NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
  62                     bus_clk / 16 / CONFIG_BAUDRATE);
  63#ifdef CONFIG_SPL_MMC_BOOT
  64        puts("\nSD boot...\n");
  65#elif defined(CONFIG_SPL_SPI_BOOT)
  66        puts("\nSPI Flash boot...\n");
  67#endif
  68
  69        /* copy code to RAM and jump to it - this should not return */
  70        /* NOTE - code has to be copied out of NAND buffer before
  71         * other blocks can be read.
  72         */
  73        relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
  74}
  75
  76void board_init_r(gd_t *gd, ulong dest_addr)
  77{
  78        /* Pointer is writable since we allocated a register for it */
  79        gd = (gd_t *)CONFIG_SPL_GD_ADDR;
  80        bd_t *bd;
  81
  82        memset(gd, 0, sizeof(gd_t));
  83        bd = (bd_t *)(CONFIG_SPL_GD_ADDR + sizeof(gd_t));
  84        memset(bd, 0, sizeof(bd_t));
  85        gd->bd = bd;
  86        bd->bi_memstart = CONFIG_SYS_INIT_L2_ADDR;
  87        bd->bi_memsize = CONFIG_SYS_L2_SIZE;
  88
  89        arch_cpu_init();
  90        get_clocks();
  91        mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
  92                        CONFIG_SPL_RELOC_MALLOC_SIZE);
  93
  94#ifndef CONFIG_SPL_NAND_BOOT
  95        env_init();
  96#endif
  97#ifdef CONFIG_SPL_MMC_BOOT
  98        mmc_initialize(bd);
  99#endif
 100        /* relocate environment function pointers etc. */
 101#ifdef CONFIG_SPL_NAND_BOOT
 102        nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
 103                            (uchar *)CONFIG_ENV_ADDR);
 104        gd->env_addr = (ulong)(CONFIG_ENV_ADDR);
 105        gd->env_valid = ENV_VALID;
 106#else
 107        env_relocate();
 108#endif
 109
 110#ifdef CONFIG_SYS_I2C
 111        i2c_init_all();
 112#else
 113        i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
 114#endif
 115
 116        dram_init();
 117#ifdef CONFIG_SPL_NAND_BOOT
 118        puts("Tertiary program loader running in sram...");
 119#else
 120        puts("Second program loader running in sram...\n");
 121#endif
 122
 123#ifdef CONFIG_SPL_MMC_BOOT
 124        mmc_boot();
 125#elif defined(CONFIG_SPL_NAND_BOOT)
 126        nand_boot();
 127#endif
 128}
 129