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f45210d6 MM |
1 | /* |
2 | * Copyright 2011 Freescale Semiconductor, Inc. | |
3 | * | |
1a459660 | 4 | * SPDX-License-Identifier: GPL-2.0+ |
f45210d6 MM |
5 | */ |
6 | ||
7 | #include <common.h> | |
8 | #include <ns16550.h> | |
9 | #include <asm/io.h> | |
10 | #include <nand.h> | |
11 | #include <asm/fsl_law.h> | |
5614e71b | 12 | #include <fsl_ddr_sdram.h> |
f45210d6 MM |
13 | |
14 | ||
f45210d6 MM |
15 | const static u32 sysclk_tbl[] = { |
16 | 66666000, 7499900, 83332500, 8999900, | |
17 | 99999000, 11111000, 12499800, 13333200 | |
18 | }; | |
19 | ||
20 | void 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 | ||
5d97fe2a YZ |
26 | #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 | |
f45210d6 MM |
30 | /* 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 | ||
f45210d6 MM |
45 | /* 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 | ||
53 | void board_init_r(gd_t *gd, ulong dest_addr) | |
54 | { | |
5d97fe2a | 55 | puts("\nSecond program loader running in sram..."); |
f45210d6 MM |
56 | nand_boot(); |
57 | } | |
58 | ||
59 | void 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 | ||
67 | void puts(const char *str) | |
68 | { | |
69 | while (*str) | |
70 | putc(*str++); | |
71 | } |