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1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2011 Freescale Semiconductor, Inc.
4  */
5 #include <common.h>
6 #include <mpc85xx.h>
7 #include <asm/io.h>
8 #include <ns16550.h>
9 #include <nand.h>
10 #include <asm/mmu.h>
11 #include <asm/immap_85xx.h>
12 #include <fsl_ddr_sdram.h>
13 #include <asm/fsl_law.h>
14 #include <asm/global_data.h>
15 
16 DECLARE_GLOBAL_DATA_PTR;
17 
board_init_f(ulong bootflag)18 void board_init_f(ulong bootflag)
19 {
20 	u32 plat_ratio;
21 	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
22 
23 #if defined(CONFIG_SYS_NAND_BR_PRELIM) && defined(CONFIG_SYS_NAND_OR_PRELIM)
24 	set_lbc_br(0, CONFIG_SYS_NAND_BR_PRELIM);
25 	set_lbc_or(0, CONFIG_SYS_NAND_OR_PRELIM);
26 #endif
27 
28 	/* initialize selected port with appropriate baud rate */
29 	plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
30 	plat_ratio >>= 1;
31 	gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
32 
33 	NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
34 			gd->bus_clk / 16 / CONFIG_BAUDRATE);
35 
36 	puts("\nNAND boot... ");
37 
38 	/* copy code to RAM and jump to it - this should not return */
39 	/* NOTE - code has to be copied out of NAND buffer before
40 	 * other blocks can be read.
41 	 */
42 
43 	relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
44 }
45 
board_init_r(gd_t * gd,ulong dest_addr)46 void board_init_r(gd_t *gd, ulong dest_addr)
47 {
48 	puts("\nSecond program loader running in sram...");
49 	nand_boot();
50 }
51 
putc(char c)52 void putc(char c)
53 {
54 	if (c == '\n')
55 		NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r');
56 
57 	NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c);
58 }
59 
puts(const char * str)60 void puts(const char *str)
61 {
62 	while (*str)
63 		putc(*str++);
64 }
65