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
board_init_f(ulong bootflag)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
board_init_r(gd_t * gd,ulong dest_addr)44 void board_init_r(gd_t *gd, ulong dest_addr)
45 {
46 puts("SPL\n");
47 nand_boot();
48 }
49
putc(char c)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
puts(const char * str)58 void puts(const char *str)
59 {
60 while (*str)
61 putc(*str++);
62 }
63