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