1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright 2011 Freescale Semiconductor, Inc.
4 */
5
6 #include <common.h>
7 #include <clock_legacy.h>
8 #include <init.h>
9 #include <ns16550.h>
10 #include <asm/io.h>
11 #include <nand.h>
12 #include <linux/compiler.h>
13 #include <asm/fsl_law.h>
14 #include <fsl_ddr_sdram.h>
15 #include <asm/global_data.h>
16
17 DECLARE_GLOBAL_DATA_PTR;
18
board_init_f(ulong bootflag)19 void board_init_f(ulong bootflag)
20 {
21 u32 plat_ratio;
22 ccsr_gur_t *gur = (void *)CFG_SYS_MPC85xx_GUTS_ADDR;
23
24 #if defined(CFG_SYS_NAND_BR_PRELIM) && defined(CFG_SYS_NAND_OR_PRELIM)
25 set_lbc_br(0, CFG_SYS_NAND_BR_PRELIM);
26 set_lbc_or(0, CFG_SYS_NAND_OR_PRELIM);
27 #endif
28
29 /* initialize selected port with appropriate baud rate */
30 plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
31 plat_ratio >>= 1;
32 gd->bus_clk = get_board_sys_clk() * plat_ratio;
33
34 ns16550_init((struct ns16550 *)CFG_SYS_NS16550_COM1,
35 gd->bus_clk / 16 / CONFIG_BAUDRATE);
36
37 puts("\nNAND boot... ");
38
39 /* copy code to RAM and jump to it - this should not return */
40 /* NOTE - code has to be copied out of NAND buffer before
41 * other blocks can be read.
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((struct ns16550 *)CFG_SYS_NS16550_COM1, '\r');
56
57 ns16550_putc((struct ns16550 *)CFG_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