1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright 2011 Freescale Semiconductor, Inc.
4 */
5
6 #include <common.h>
7 #include <init.h>
8 #include <ns16550.h>
9 #include <asm/io.h>
10 #include <nand.h>
11 #include <linux/compiler.h>
12 #include <asm/fsl_law.h>
13 #include <fsl_ddr_sdram.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((struct ns16550 *)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 relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
43 }
44
board_init_r(gd_t * gd,ulong dest_addr)45 void board_init_r(gd_t *gd, ulong dest_addr)
46 {
47 puts("\nSecond program loader running in sram...");
48 nand_boot();
49 }
50
putc(char c)51 void putc(char c)
52 {
53 if (c == '\n')
54 ns16550_putc((struct ns16550 *)CONFIG_SYS_NS16550_COM1, '\r');
55
56 ns16550_putc((struct ns16550 *)CONFIG_SYS_NS16550_COM1, c);
57 }
58
puts(const char * str)59 void puts(const char *str)
60 {
61 while (*str)
62 putc(*str++);
63 }
64