1 /* Copyright 2013 Freescale Semiconductor, Inc.
2  *
3  * SPDX-License-Identifier:    GPL-2.0+
4  */
5 
6 #include <common.h>
7 #include <mpc85xx.h>
8 #include <asm/io.h>
9 #include <ns16550.h>
10 #include <nand.h>
11 #include <asm/mmu.h>
12 #include <asm/immap_85xx.h>
13 #include <asm/fsl_law.h>
14 #include <asm/global_data.h>
15 
16 DECLARE_GLOBAL_DATA_PTR;
17 
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...\n");
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 	relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
43 }
44 
45 void board_init_r(gd_t *gd, ulong dest_addr)
46 {
47 	puts("SPL\n");
48 	nand_boot();
49 }
50 
51 void putc(char c)
52 {
53 	if (c == '\n')
54 		NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r');
55 
56 	NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c);
57 }
58 
59 void puts(const char *str)
60 {
61 	while (*str)
62 		putc(*str++);
63 }
64