xref: /openbmc/u-boot/arch/arm/mach-zynq/spl.c (revision 48263504)
1 /*
2  * (C) Copyright 2014 Xilinx, Inc. Michal Simek
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 #include <common.h>
7 #include <debug_uart.h>
8 #include <spl.h>
9 
10 #include <asm/io.h>
11 #include <asm/spl.h>
12 #include <asm/arch/hardware.h>
13 #include <asm/arch/sys_proto.h>
14 #include <asm/arch/ps7_init_gpl.h>
15 
16 DECLARE_GLOBAL_DATA_PTR;
17 
18 void board_init_f(ulong dummy)
19 {
20 	ps7_init();
21 
22 	arch_cpu_init();
23 	/*
24 	 * The debug UART can be used from this point:
25 	 * debug_uart_init();
26 	 * printch('x');
27 	 */
28 }
29 
30 #ifdef CONFIG_SPL_BOARD_INIT
31 void spl_board_init(void)
32 {
33 	preloader_console_init();
34 	board_init();
35 }
36 #endif
37 
38 u32 spl_boot_device(void)
39 {
40 	u32 mode;
41 
42 	switch ((zynq_slcr_get_boot_mode()) & ZYNQ_BM_MASK) {
43 #ifdef CONFIG_SPL_SPI_SUPPORT
44 	case ZYNQ_BM_QSPI:
45 		puts("qspi boot\n");
46 		mode = BOOT_DEVICE_SPI;
47 		break;
48 #endif
49 	case ZYNQ_BM_NAND:
50 		mode = BOOT_DEVICE_NAND;
51 		break;
52 	case ZYNQ_BM_NOR:
53 		mode = BOOT_DEVICE_NOR;
54 		break;
55 #ifdef CONFIG_SPL_MMC_SUPPORT
56 	case ZYNQ_BM_SD:
57 		puts("mmc boot\n");
58 		mode = BOOT_DEVICE_MMC1;
59 		break;
60 #endif
61 	case ZYNQ_BM_JTAG:
62 		mode = BOOT_DEVICE_RAM;
63 		break;
64 	default:
65 		puts("Unsupported boot mode selected\n");
66 		hang();
67 	}
68 
69 	return mode;
70 }
71 
72 #ifdef CONFIG_SPL_MMC_SUPPORT
73 u32 spl_boot_mode(const u32 boot_device)
74 {
75 	return MMCSD_MODE_FS;
76 }
77 #endif
78 
79 #ifdef CONFIG_SPL_OS_BOOT
80 int spl_start_uboot(void)
81 {
82 	/* boot linux */
83 	return 0;
84 }
85 #endif
86 
87 void spl_board_prepare_for_boot(void)
88 {
89 	ps7_post_config();
90 	debug("SPL bye\n");
91 }
92 
93 #ifdef CONFIG_SPL_LOAD_FIT
94 int board_fit_config_name_match(const char *name)
95 {
96 	/* Just empty function now - can't decide what to choose */
97 	debug("%s: %s\n", __func__, name);
98 
99 	return 0;
100 }
101 #endif
102