1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright 2011 Freescale Semiconductor, Inc.
4 */
5 #include <common.h>
6 #include <clock_legacy.h>
7 #include <init.h>
8 #include <mpc85xx.h>
9 #include <asm/io.h>
10 #include <ns16550.h>
11 #include <nand.h>
12 #include <asm/mmu.h>
13 #include <asm/immap_85xx.h>
14 #include <fsl_ddr_sdram.h>
15 #include <asm/fsl_law.h>
16 #include <asm/global_data.h>
17
18 DECLARE_GLOBAL_DATA_PTR;
19
board_init_f(ulong bootflag)20 void board_init_f(ulong bootflag)
21 {
22 u32 plat_ratio;
23 ccsr_gur_t *gur = (void *)CFG_SYS_MPC85xx_GUTS_ADDR;
24
25 #if defined(CFG_SYS_NAND_BR_PRELIM) && defined(CFG_SYS_NAND_OR_PRELIM)
26 set_lbc_br(0, CFG_SYS_NAND_BR_PRELIM);
27 set_lbc_or(0, CFG_SYS_NAND_OR_PRELIM);
28 #endif
29
30 /* initialize selected port with appropriate baud rate */
31 plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
32 plat_ratio >>= 1;
33 gd->bus_clk = get_board_sys_clk() * plat_ratio;
34
35 ns16550_init((struct ns16550 *)CFG_SYS_NS16550_COM1,
36 gd->bus_clk / 16 / CONFIG_BAUDRATE);
37
38 puts("\nNAND boot... ");
39
40 /* copy code to RAM and jump to it - this should not return */
41 /* NOTE - code has to be copied out of NAND buffer before
42 * other blocks can be read.
43 */
44
45 relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
46 }
47
board_init_r(gd_t * gd,ulong dest_addr)48 void board_init_r(gd_t *gd, ulong dest_addr)
49 {
50 puts("\nSecond program loader running in sram...");
51 nand_boot();
52 }
53
putc(char c)54 void putc(char c)
55 {
56 if (c == '\n')
57 ns16550_putc((struct ns16550 *)CFG_SYS_NS16550_COM1, '\r');
58
59 ns16550_putc((struct ns16550 *)CFG_SYS_NS16550_COM1, c);
60 }
61
puts(const char * str)62 void puts(const char *str)
63 {
64 while (*str)
65 putc(*str++);
66 }
67