xref: /openbmc/u-boot/arch/arm/mach-davinci/spl.c (revision ad3098f7)
1 /*
2  * Copyright (C) 2011
3  * Heiko Schocher, DENX Software Engineering, hs@denx.de.
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 #include <common.h>
8 #include <config.h>
9 #include <spl.h>
10 #include <asm/u-boot.h>
11 #include <asm/utils.h>
12 #include <nand.h>
13 #include <asm/arch/dm365_lowlevel.h>
14 #include <ns16550.h>
15 #include <malloc.h>
16 #include <spi_flash.h>
17 #include <mmc.h>
18 
19 DECLARE_GLOBAL_DATA_PTR;
20 
21 #ifndef CONFIG_SPL_LIBCOMMON_SUPPORT
22 void puts(const char *str)
23 {
24 	while (*str)
25 		putc(*str++);
26 }
27 
28 void putc(char c)
29 {
30 	if (c == '\n')
31 		NS16550_putc((NS16550_t)(CONFIG_SYS_NS16550_COM1), '\r');
32 
33 	NS16550_putc((NS16550_t)(CONFIG_SYS_NS16550_COM1), c);
34 }
35 #endif /* CONFIG_SPL_LIBCOMMON_SUPPORT */
36 
37 void spl_board_init(void)
38 {
39 #ifdef CONFIG_SOC_DM365
40 	dm36x_lowlevel_init(0);
41 #endif
42 #ifdef CONFIG_SOC_DA8XX
43 	arch_cpu_init();
44 #endif
45 	preloader_console_init();
46 }
47 
48 u32 spl_boot_mode(void)
49 {
50 	return MMCSD_MODE_RAW;
51 }
52 
53 u32 spl_boot_device(void)
54 {
55 #ifdef CONFIG_SPL_NAND_SIMPLE
56 	return BOOT_DEVICE_NAND;
57 #elif defined(CONFIG_SPL_SPI_LOAD)
58 	return BOOT_DEVICE_SPI;
59 #elif defined(CONFIG_SPL_MMC_LOAD)
60 	return BOOT_DEVICE_MMC1;
61 #else
62 	puts("Unknown boot device\n");
63 	hang();
64 #endif
65 }
66