xref: /openbmc/u-boot/arch/arm/mach-davinci/spl.c (revision b25f8e21)
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 #ifndef CONFIG_SPL_LIBCOMMON_SUPPORT
20 void puts(const char *str)
21 {
22 	while (*str)
23 		putc(*str++);
24 }
25 
26 void putc(char c)
27 {
28 	if (c == '\n')
29 		NS16550_putc((NS16550_t)(CONFIG_SYS_NS16550_COM1), '\r');
30 
31 	NS16550_putc((NS16550_t)(CONFIG_SYS_NS16550_COM1), c);
32 }
33 #endif /* CONFIG_SPL_LIBCOMMON_SUPPORT */
34 
35 void spl_board_init(void)
36 {
37 #ifdef CONFIG_SOC_DM365
38 	dm36x_lowlevel_init(0);
39 #endif
40 #ifdef CONFIG_SOC_DA8XX
41 	arch_cpu_init();
42 #endif
43 	preloader_console_init();
44 }
45 
46 u32 spl_boot_device(void)
47 {
48 	switch (davinci_syscfg_regs->bootcfg) {
49 #ifdef CONFIG_SPL_NAND_SUPPORT
50 	case DAVINCI_NAND8_BOOT:
51 	case DAVINCI_NAND16_BOOT:
52 		return BOOT_DEVICE_NAND;
53 #endif
54 
55 #ifdef CONFIG_SPL_MMC_SUPPORT
56 	case DAVINCI_SD_OR_MMC_BOOT:
57 	case DAVINCI_MMC_ONLY_BOOT:
58 		return BOOT_DEVICE_MMC1;
59 #endif
60 
61 #ifdef CONFIG_SPL_SPI_FLASH_SUPPORT
62 	case DAVINCI_SPI0_FLASH_BOOT:
63 	case DAVINCI_SPI1_FLASH_BOOT:
64 		return BOOT_DEVICE_SPI;
65 #endif
66 
67 	default:
68 		puts("Unknown boot device\n");
69 		hang();
70 	}
71 }
72