1 // SPDX-License-Identifier: GPL-2.0+
2 /* Copyright 2013 Freescale Semiconductor, Inc.
3  */
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 <asm/fsl_law.h>
13 #include <asm/global_data.h>
14 
15 DECLARE_GLOBAL_DATA_PTR;
16 
17 void board_init_f(ulong bootflag)
18 {
19 	u32 plat_ratio;
20 	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
21 
22 #if defined(CONFIG_SYS_NAND_BR_PRELIM) && defined(CONFIG_SYS_NAND_OR_PRELIM)
23 	set_lbc_br(0, CONFIG_SYS_NAND_BR_PRELIM);
24 	set_lbc_or(0, CONFIG_SYS_NAND_OR_PRELIM);
25 #endif
26 
27 	/* initialize selected port with appropriate baud rate */
28 	plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
29 	plat_ratio >>= 1;
30 	gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
31 
32 	NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
33 		     gd->bus_clk / 16 / CONFIG_BAUDRATE);
34 
35 	puts("\nNAND boot...\n");
36 
37 	/* copy code to RAM and jump to it - this should not return */
38 	/* NOTE - code has to be copied out of NAND buffer before
39 	 * other blocks can be read.
40 	 */
41 	relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
42 }
43 
44 void board_init_r(gd_t *gd, ulong dest_addr)
45 {
46 	puts("SPL\n");
47 	nand_boot();
48 }
49 
50 void putc(char c)
51 {
52 	if (c == '\n')
53 		NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r');
54 
55 	NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c);
56 }
57 
58 void puts(const char *str)
59 {
60 	while (*str)
61 		putc(*str++);
62 }
63