board/freescale/t4rdb/spl.c

   1 /*
   2  * Copyright 2015 Freescale Semiconductor, Inc.
   3  *
   4  * Author: Chunhe Lan <Chunhe.Lan@freescale.com>
   5  *
   6  * SPDX-License-Identifier:    GPL-2.0+
   7  */
   8
   9 #include <common.h>
  10 #include <console.h>
  11 #include <asm/spl.h>
  12 #include <malloc.h>
  13 #include <ns16550.h>
  14 #include <nand.h>
  15 #include <mmc.h>
  16 #include <fsl_esdhc.h>
  17 #include <i2c.h>
  18
  19 #include "t4rdb.h"
  20
  21 #define FSL_CORENET_CCSR_PORSR1_RCW_MASK        0xFF800000
  22
  23 DECLARE_GLOBAL_DATA_PTR;
  24
  25 phys_size_t get_effective_memsize(void)
  26 {
  27         return CONFIG_SYS_L3_SIZE;
  28 }
  29
  30 unsigned long get_board_sys_clk(void)
  31 {
  32         return CONFIG_SYS_CLK_FREQ;
  33 }
  34
  35 unsigned long get_board_ddr_clk(void)
  36 {
  37         return CONFIG_DDR_CLK_FREQ;
  38 }
  39
  40 void board_init_f(ulong bootflag)
  41 {
  42         u32 plat_ratio, sys_clk, ccb_clk;
  43         ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
  44
  45         /* Memcpy existing GD at CONFIG_SPL_GD_ADDR */
  46         memcpy((void *)CONFIG_SPL_GD_ADDR, (void *)gd, sizeof(gd_t));
  47
  48         /* Update GD pointer */
  49         gd = (gd_t *)(CONFIG_SPL_GD_ADDR);
  50
  51         /* compiler optimization barrier needed for GCC >= 3.4 */
  52         __asm__ __volatile__("" : : : "memory");
  53
  54         console_init_f();
  55
  56         /* initialize selected port with appropriate baud rate */
  57         sys_clk = get_board_sys_clk();
  58         plat_ratio = (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f;
  59         ccb_clk = sys_clk * plat_ratio / 2;
  60
  61         NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
  62                      ccb_clk / 16 / CONFIG_BAUDRATE);
  63
  64         puts("\nSD boot...\n");
  65
  66         relocate_code(CONFIG_SPL_RELOC_STACK, (gd_t *)CONFIG_SPL_GD_ADDR, 0x0);
  67 }
  68
  69 void board_init_r(gd_t *gd, ulong dest_addr)
  70 {
  71         bd_t *bd;
  72
  73         bd = (bd_t *)(gd + sizeof(gd_t));
  74         memset(bd, 0, sizeof(bd_t));
  75         gd->bd = bd;
  76         bd->bi_memstart = CONFIG_SYS_INIT_L3_ADDR;
  77         bd->bi_memsize = CONFIG_SYS_L3_SIZE;
  78
  79         arch_cpu_init();
  80         get_clocks();
  81         mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
  82                         CONFIG_SPL_RELOC_MALLOC_SIZE);
  83         gd->flags |= GD_FLG_FULL_MALLOC_INIT;
  84
  85         mmc_initialize(bd);
  86         mmc_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
  87                            (uchar *)CONFIG_ENV_ADDR);
  88
  89         gd->env_addr  = (ulong)(CONFIG_ENV_ADDR);
  90         gd->env_valid = 1;
  91
  92         i2c_init_all();
  93
  94         initdram();
  95
  96         mmc_boot();
  97 }