xref: /openbmc/u-boot/arch/arm/mach-zynq/spl.c (revision 872cfa20)
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 #if defined(CONFIG_ARCH_EARLY_INIT_R) && defined(CONFIG_SPL_FPGA_SUPPORT)
33 	arch_early_init_r();
34 #endif
35 	board_init();
36 }
37 #endif
38 
39 u32 spl_boot_device(void)
40 {
41 	u32 mode;
42 
43 	switch ((zynq_slcr_get_boot_mode()) & ZYNQ_BM_MASK) {
44 #ifdef CONFIG_SPL_SPI_SUPPORT
45 	case ZYNQ_BM_QSPI:
46 		puts("qspi boot\n");
47 		mode = BOOT_DEVICE_SPI;
48 		break;
49 #endif
50 	case ZYNQ_BM_NAND:
51 		mode = BOOT_DEVICE_NAND;
52 		break;
53 	case ZYNQ_BM_NOR:
54 		mode = BOOT_DEVICE_NOR;
55 		break;
56 #ifdef CONFIG_SPL_MMC_SUPPORT
57 	case ZYNQ_BM_SD:
58 		puts("mmc boot\n");
59 		mode = BOOT_DEVICE_MMC1;
60 		break;
61 #endif
62 	case ZYNQ_BM_JTAG:
63 		mode = BOOT_DEVICE_RAM;
64 		break;
65 	default:
66 		puts("Unsupported boot mode selected\n");
67 		hang();
68 	}
69 
70 	return mode;
71 }
72 
73 #ifdef CONFIG_SPL_OS_BOOT
74 int spl_start_uboot(void)
75 {
76 	/* boot linux */
77 	return 0;
78 }
79 #endif
80 
81 void spl_board_prepare_for_boot(void)
82 {
83 	ps7_post_config();
84 	debug("SPL bye\n");
85 }
86 
87 #ifdef CONFIG_SPL_LOAD_FIT
88 int board_fit_config_name_match(const char *name)
89 {
90 	/* Just empty function now - can't decide what to choose */
91 	debug("%s: %s\n", __func__, name);
92 
93 	return 0;
94 }
95 #endif
96