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 <environment.h> 12 #include <asm/spl.h> 13 #include <malloc.h> 14 #include <ns16550.h> 15 #include <nand.h> 16 #include <mmc.h> 17 #include <fsl_esdhc.h> 18 #include <i2c.h> 19 20 #include "t4rdb.h" 21 22 #define FSL_CORENET_CCSR_PORSR1_RCW_MASK 0xFF800000 23 24 DECLARE_GLOBAL_DATA_PTR; 25 26 phys_size_t get_effective_memsize(void) 27 { 28 return CONFIG_SYS_L3_SIZE; 29 } 30 31 unsigned long get_board_sys_clk(void) 32 { 33 return CONFIG_SYS_CLK_FREQ; 34 } 35 36 unsigned long get_board_ddr_clk(void) 37 { 38 return CONFIG_DDR_CLK_FREQ; 39 } 40 41 void board_init_f(ulong bootflag) 42 { 43 u32 plat_ratio, sys_clk, ccb_clk; 44 ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR; 45 46 /* Memcpy existing GD at CONFIG_SPL_GD_ADDR */ 47 memcpy((void *)CONFIG_SPL_GD_ADDR, (void *)gd, sizeof(gd_t)); 48 49 /* Update GD pointer */ 50 gd = (gd_t *)(CONFIG_SPL_GD_ADDR); 51 52 /* compiler optimization barrier needed for GCC >= 3.4 */ 53 __asm__ __volatile__("" : : : "memory"); 54 55 console_init_f(); 56 57 /* initialize selected port with appropriate baud rate */ 58 sys_clk = get_board_sys_clk(); 59 plat_ratio = (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f; 60 ccb_clk = sys_clk * plat_ratio / 2; 61 62 NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1, 63 ccb_clk / 16 / CONFIG_BAUDRATE); 64 65 puts("\nSD boot...\n"); 66 67 relocate_code(CONFIG_SPL_RELOC_STACK, (gd_t *)CONFIG_SPL_GD_ADDR, 0x0); 68 } 69 70 void board_init_r(gd_t *gd, ulong dest_addr) 71 { 72 bd_t *bd; 73 74 bd = (bd_t *)(gd + sizeof(gd_t)); 75 memset(bd, 0, sizeof(bd_t)); 76 gd->bd = bd; 77 bd->bi_memstart = CONFIG_SYS_INIT_L3_ADDR; 78 bd->bi_memsize = CONFIG_SYS_L3_SIZE; 79 80 arch_cpu_init(); 81 get_clocks(); 82 mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR, 83 CONFIG_SPL_RELOC_MALLOC_SIZE); 84 gd->flags |= GD_FLG_FULL_MALLOC_INIT; 85 86 mmc_initialize(bd); 87 mmc_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, 88 (uchar *)CONFIG_ENV_ADDR); 89 90 gd->env_addr = (ulong)(CONFIG_ENV_ADDR); 91 gd->env_valid = ENV_VALID; 92 93 i2c_init_all(); 94 95 dram_init(); 96 97 mmc_boot(); 98 } 99