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8b0044ff OZ |
1 | /* |
2 | * Copyright 2013-2015 Arcturus Networks, Inc. | |
3 | * http://www.arcturusnetworks.com/products/ucp1020/ | |
4 | * based on board/freescale/p1_p2_rdb_pc/spl_minimal.c | |
5 | * original copyright follows: | |
6 | * Copyright 2011 Freescale Semiconductor, Inc. | |
7 | * | |
8 | * SPDX-License-Identifier: GPL-2.0+ | |
9 | */ | |
10 | ||
11 | #include <common.h> | |
12 | #include <ns16550.h> | |
13 | #include <asm/io.h> | |
14 | #include <nand.h> | |
15 | #include <linux/compiler.h> | |
16 | #include <asm/fsl_law.h> | |
17 | #include <fsl_ddr_sdram.h> | |
18 | #include <asm/global_data.h> | |
19 | ||
20 | DECLARE_GLOBAL_DATA_PTR; | |
21 | ||
22 | void board_init_f(ulong bootflag) | |
23 | { | |
24 | u32 plat_ratio; | |
25 | ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR; | |
26 | ||
27 | #if defined(CONFIG_SYS_NAND_BR_PRELIM) && defined(CONFIG_SYS_NAND_OR_PRELIM) | |
28 | set_lbc_br(0, CONFIG_SYS_NAND_BR_PRELIM); | |
29 | set_lbc_or(0, CONFIG_SYS_NAND_OR_PRELIM); | |
30 | #endif | |
31 | ||
32 | /* initialize selected port with appropriate baud rate */ | |
33 | plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO; | |
34 | plat_ratio >>= 1; | |
35 | gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio; | |
36 | ||
37 | NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1, | |
38 | gd->bus_clk / 16 / CONFIG_BAUDRATE); | |
39 | ||
40 | puts("\nNAND boot... "); | |
41 | ||
42 | /* copy code to RAM and jump to it - this should not return */ | |
43 | /* NOTE - code has to be copied out of NAND buffer before | |
44 | * other blocks can be read. | |
45 | */ | |
46 | relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE); | |
47 | } | |
48 | ||
49 | void board_init_r(gd_t *gd, ulong dest_addr) | |
50 | { | |
51 | puts("\nSecond program loader running in sram..."); | |
52 | nand_boot(); | |
53 | } | |
54 | ||
55 | void putc(char c) | |
56 | { | |
57 | if (c == '\n') | |
58 | NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r'); | |
59 | ||
60 | NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c); | |
61 | } | |
62 | ||
63 | void puts(const char *str) | |
64 | { | |
65 | while (*str) | |
66 | putc(*str++); | |
67 | } |