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