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_minimal.c 5 * original copyright follows: 6 * Copyright 2011 Freescale Semiconductor, Inc. 7 * 8 * SPDX-License-Identifier: GPL-2.0+ 9 */ 10 11 #include <common.h> 12 #include <ns16550.h> 13 #include <asm/io.h> 14 #include <nand.h> 15 #include <linux/compiler.h> 16 #include <asm/fsl_law.h> 17 #include <fsl_ddr_sdram.h> 18 #include <asm/global_data.h> 19 20 DECLARE_GLOBAL_DATA_PTR; 21 22 void board_init_f(ulong bootflag) 23 { 24 u32 plat_ratio; 25 ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR; 26 27 #if defined(CONFIG_SYS_NAND_BR_PRELIM) && defined(CONFIG_SYS_NAND_OR_PRELIM) 28 set_lbc_br(0, CONFIG_SYS_NAND_BR_PRELIM); 29 set_lbc_or(0, CONFIG_SYS_NAND_OR_PRELIM); 30 #endif 31 32 /* initialize selected port with appropriate baud rate */ 33 plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO; 34 plat_ratio >>= 1; 35 gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio; 36 37 NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1, 38 gd->bus_clk / 16 / CONFIG_BAUDRATE); 39 40 puts("\nNAND boot... "); 41 42 /* copy code to RAM and jump to it - this should not return */ 43 /* NOTE - code has to be copied out of NAND buffer before 44 * other blocks can be read. 45 */ 46 relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE); 47 } 48 49 void board_init_r(gd_t *gd, ulong dest_addr) 50 { 51 puts("\nSecond program loader running in sram..."); 52 nand_boot(); 53 } 54 55 void putc(char c) 56 { 57 if (c == '\n') 58 NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r'); 59 60 NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c); 61 } 62 63 void puts(const char *str) 64 { 65 while (*str) 66 putc(*str++); 67 } 68