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Matthew McClintockcd99caa2013-02-18 10:02:19 +00001/*
2 * Copyright 2011 Freescale Semiconductor, Inc.
3 *
Wolfgang Denkd79de1d2013-07-08 09:37:19 +02004 * SPDX-License-Identifier: GPL-2.0+
Matthew McClintockcd99caa2013-02-18 10:02:19 +00005 */
6
7#include <common.h>
8#include <ns16550.h>
9#include <asm/io.h>
10#include <nand.h>
11#include <asm/fsl_law.h>
York Sunf0626592013-09-30 09:22:09 -070012#include <fsl_ddr_sdram.h>
Matthew McClintockcd99caa2013-02-18 10:02:19 +000013
14
Matthew McClintockcd99caa2013-02-18 10:02:19 +000015const static u32 sysclk_tbl[] = {
16 66666000, 7499900, 83332500, 8999900,
17 99999000, 11111000, 12499800, 13333200
18};
19
20void board_init_f(ulong bootflag)
21{
22 int px_spd;
23 u32 plat_ratio, sys_clk, bus_clk;
24 ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
25
Ying Zhang9c2e84f2013-08-16 15:16:16 +080026#if defined(CONFIG_SYS_NAND_BR_PRELIM) && defined(CONFIG_SYS_NAND_OR_PRELIM)
27 set_lbc_br(0, CONFIG_SYS_NAND_BR_PRELIM);
28 set_lbc_or(0, CONFIG_SYS_NAND_OR_PRELIM);
29#endif
Matthew McClintockcd99caa2013-02-18 10:02:19 +000030 /* for FPGA */
31 set_lbc_br(2, CONFIG_SYS_BR2_PRELIM);
32 set_lbc_or(2, CONFIG_SYS_OR2_PRELIM);
33
34 /* initialize selected port with appropriate baud rate */
35 px_spd = in_8((unsigned char *)(PIXIS_BASE + PIXIS_SPD));
36 sys_clk = sysclk_tbl[px_spd & PIXIS_SPD_SYSCLK_MASK];
37 plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
38 bus_clk = sys_clk * plat_ratio / 2;
39
40 NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
41 bus_clk / 16 / CONFIG_BAUDRATE);
42
43 puts("\nNAND boot... ");
44
Matthew McClintockcd99caa2013-02-18 10:02:19 +000045 /* copy code to RAM and jump to it - this should not return */
46 /* NOTE - code has to be copied out of NAND buffer before
47 * other blocks can be read.
48 */
49 relocate_code(CONFIG_SPL_RELOC_STACK, 0,
50 CONFIG_SPL_RELOC_TEXT_BASE);
51}
52
53void board_init_r(gd_t *gd, ulong dest_addr)
54{
Ying Zhang9c2e84f2013-08-16 15:16:16 +080055 puts("\nSecond program loader running in sram...");
Matthew McClintockcd99caa2013-02-18 10:02:19 +000056 nand_boot();
57}
58
59void putc(char c)
60{
61 if (c == '\n')
62 NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r');
63
64 NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c);
65}
66
67void puts(const char *str)
68{
69 while (*str)
70 putc(*str++);
71}