board/freescale/t208xqds/spl.c

   1 /* Copyright 2013 Freescale Semiconductor, Inc.
   2  *
   3  * SPDX-License-Identifier:    GPL-2.0+
   4  */
   5
   6 #include <common.h>
   7 #include <console.h>
   8 #include <malloc.h>
   9 #include <ns16550.h>
  10 #include <nand.h>
  11 #include <i2c.h>
  12 #include <mmc.h>
  13 #include <fsl_esdhc.h>
  14 #include <spi_flash.h>
  15 #include "../common/qixis.h"
  16 #include "t208xqds_qixis.h"
  17 #include "../common/spl.h"
  18
  19 DECLARE_GLOBAL_DATA_PTR;
  20
  21 phys_size_t get_effective_memsize(void)
  22 {
  23         return CONFIG_SYS_L3_SIZE;
  24 }
  25
  26 unsigned long get_board_sys_clk(void)
  27 {
  28         u8 sysclk_conf = QIXIS_READ(brdcfg[1]);
  29
  30         switch (sysclk_conf & 0x0F) {
  31         case QIXIS_SYSCLK_83:
  32                 return 83333333;
  33         case QIXIS_SYSCLK_100:
  34                 return 100000000;
  35         case QIXIS_SYSCLK_125:
  36                 return 125000000;
  37         case QIXIS_SYSCLK_133:
  38                 return 133333333;
  39         case QIXIS_SYSCLK_150:
  40                 return 150000000;
  41         case QIXIS_SYSCLK_160:
  42                 return 160000000;
  43         case QIXIS_SYSCLK_166:
  44                 return 166666666;
  45         }
  46         return 66666666;
  47 }
  48
  49 unsigned long get_board_ddr_clk(void)
  50 {
  51         u8 ddrclk_conf = QIXIS_READ(brdcfg[1]);
  52
  53         switch ((ddrclk_conf & 0x30) >> 4) {
  54         case QIXIS_DDRCLK_100:
  55                 return 100000000;
  56         case QIXIS_DDRCLK_125:
  57                 return 125000000;
  58         case QIXIS_DDRCLK_133:
  59                 return 133333333;
  60         }
  61         return 66666666;
  62 }
  63
  64 void board_init_f(ulong bootflag)
  65 {
  66         u32 plat_ratio, sys_clk, ccb_clk;
  67         ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
  68
  69         /* Memcpy existing GD at CONFIG_SPL_GD_ADDR */
  70         memcpy((void *)CONFIG_SPL_GD_ADDR, (void *)gd, sizeof(gd_t));
  71
  72         /* Update GD pointer */
  73         gd = (gd_t *)(CONFIG_SPL_GD_ADDR);
  74
  75         console_init_f();
  76
  77         /* initialize selected port with appropriate baud rate */
  78         sys_clk = get_board_sys_clk();
  79         plat_ratio = (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f;
  80         ccb_clk = sys_clk * plat_ratio / 2;
  81
  82         NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
  83                      ccb_clk / 16 / CONFIG_BAUDRATE);
  84
  85 #if defined(CONFIG_SPL_MMC_BOOT)
  86         puts("\nSD boot...\n");
  87 #elif defined(CONFIG_SPL_SPI_BOOT)
  88         puts("\nSPI boot...\n");
  89 #elif defined(CONFIG_SPL_NAND_BOOT)
  90         puts("\nNAND boot...\n");
  91 #endif
  92
  93         relocate_code(CONFIG_SPL_RELOC_STACK, (gd_t *)CONFIG_SPL_GD_ADDR, 0x0);
  94 }
  95
  96 void board_init_r(gd_t *gd, ulong dest_addr)
  97 {
  98         bd_t *bd;
  99
 100         bd = (bd_t *)(gd + sizeof(gd_t));
 101         memset(bd, 0, sizeof(bd_t));
 102         gd->bd = bd;
 103         bd->bi_memstart = CONFIG_SYS_INIT_L3_ADDR;
 104         bd->bi_memsize = CONFIG_SYS_L3_SIZE;
 105
 106         probecpu();
 107         get_clocks();
 108         mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
 109                         CONFIG_SPL_RELOC_MALLOC_SIZE);
 110         gd->flags |= GD_FLG_FULL_MALLOC_INIT;
 111
 112 #ifdef CONFIG_SPL_NAND_BOOT
 113         nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
 114                             (uchar *)CONFIG_ENV_ADDR);
 115 #endif
 116 #ifdef CONFIG_SPL_MMC_BOOT
 117         mmc_initialize(bd);
 118         mmc_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
 119                            (uchar *)CONFIG_ENV_ADDR);
 120 #endif
 121 #ifdef CONFIG_SPL_SPI_BOOT
 122         fsl_spi_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
 123                                (uchar *)CONFIG_ENV_ADDR);
 124 #endif
 125
 126         gd->env_addr  = (ulong)(CONFIG_ENV_ADDR);
 127         gd->env_valid = 1;
 128
 129         i2c_init_all();
 130
 131         gd->ram_size = initdram(0);
 132
 133 #ifdef CONFIG_SPL_MMC_BOOT
 134         mmc_boot();
 135 #elif defined(CONFIG_SPL_SPI_BOOT)
 136         fsl_spi_boot();
 137 #elif defined(CONFIG_SPL_NAND_BOOT)
 138         nand_boot();
 139 #endif
 140 }