xref: /openbmc/u-boot/arch/arm/mach-zynq/spl.c (revision 63e22517)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2014 - 2017 Xilinx, Inc. Michal Simek
4  */
5 #include <common.h>
6 #include <debug_uart.h>
7 #include <spl.h>
8 
9 #include <asm/io.h>
10 #include <asm/spl.h>
11 #include <asm/arch/hardware.h>
12 #include <asm/arch/sys_proto.h>
13 #include <asm/arch/ps7_init_gpl.h>
14 
15 void board_init_f(ulong dummy)
16 {
17 	ps7_init();
18 
19 	arch_cpu_init();
20 
21 #ifdef CONFIG_DEBUG_UART
22 	/* Uart debug for sure */
23 	debug_uart_init();
24 	puts("Debug uart enabled\n"); /* or printch() */
25 #endif
26 }
27 
28 #ifdef CONFIG_SPL_BOARD_INIT
29 void spl_board_init(void)
30 {
31 	preloader_console_init();
32 	board_init();
33 }
34 #endif
35 
36 u32 spl_boot_device(void)
37 {
38 	u32 mode;
39 
40 	switch ((zynq_slcr_get_boot_mode()) & ZYNQ_BM_MASK) {
41 #ifdef CONFIG_SPL_SPI_SUPPORT
42 	case ZYNQ_BM_QSPI:
43 		puts("qspi boot\n");
44 		mode = BOOT_DEVICE_SPI;
45 		break;
46 #endif
47 	case ZYNQ_BM_NAND:
48 		mode = BOOT_DEVICE_NAND;
49 		break;
50 	case ZYNQ_BM_NOR:
51 		mode = BOOT_DEVICE_NOR;
52 		break;
53 #ifdef CONFIG_SPL_MMC_SUPPORT
54 	case ZYNQ_BM_SD:
55 		puts("mmc boot\n");
56 		mode = BOOT_DEVICE_MMC1;
57 		break;
58 #endif
59 	case ZYNQ_BM_JTAG:
60 		mode = BOOT_DEVICE_RAM;
61 		break;
62 	default:
63 		puts("Unsupported boot mode selected\n");
64 		hang();
65 	}
66 
67 	return mode;
68 }
69 
70 #ifdef CONFIG_SPL_OS_BOOT
71 int spl_start_uboot(void)
72 {
73 	/* boot linux */
74 	return 0;
75 }
76 #endif
77 
78 void spl_board_prepare_for_boot(void)
79 {
80 	ps7_post_config();
81 	debug("SPL bye\n");
82 }
83 
84 #ifdef CONFIG_SPL_LOAD_FIT
85 int board_fit_config_name_match(const char *name)
86 {
87 	/* Just empty function now - can't decide what to choose */
88 	debug("%s: %s\n", __func__, name);
89 
90 	return 0;
91 }
92 #endif
93