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e6a9ed04 MS |
1 | /* |
2 | * Copyright 2015 - 2016 Xilinx, Inc. | |
3 | * | |
4 | * Michal Simek <michal.simek@xilinx.com> | |
5 | * | |
6 | * SPDX-License-Identifier: GPL-2.0+ | |
7 | */ | |
8 | ||
9 | #include <common.h> | |
10 | #include <debug_uart.h> | |
11 | #include <spl.h> | |
12 | ||
13 | #include <asm/io.h> | |
14 | #include <asm/spl.h> | |
15 | #include <asm/arch/hardware.h> | |
16 | #include <asm/arch/sys_proto.h> | |
17 | ||
18 | void board_init_f(ulong dummy) | |
19 | { | |
20 | psu_init(); | |
21 | board_early_init_r(); | |
22 | ||
23 | #ifdef CONFIG_DEBUG_UART | |
24 | /* Uart debug for sure */ | |
25 | debug_uart_init(); | |
26 | puts("Debug uart enabled\n"); /* or printch() */ | |
27 | #endif | |
28 | /* Delay is required for clocks to be propagated */ | |
29 | udelay(1000000); | |
30 | ||
31 | /* Clear the BSS */ | |
32 | memset(__bss_start, 0, __bss_end - __bss_start); | |
33 | ||
34 | /* No need to call timer init - it is empty for ZynqMP */ | |
35 | board_init_r(NULL, 0); | |
36 | } | |
37 | ||
38 | #ifdef CONFIG_SPL_BOARD_INIT | |
39 | void spl_board_init(void) | |
40 | { | |
41 | preloader_console_init(); | |
42 | board_init(); | |
43 | } | |
44 | #endif | |
45 | ||
46 | u32 spl_boot_device(void) | |
47 | { | |
48 | u32 reg = 0; | |
49 | u8 bootmode; | |
50 | ||
51 | reg = readl(&crlapb_base->boot_mode); | |
52 | bootmode = reg & BOOT_MODES_MASK; | |
53 | ||
54 | switch (bootmode) { | |
55 | case JTAG_MODE: | |
56 | return BOOT_DEVICE_RAM; | |
57 | #ifdef CONFIG_SPL_MMC_SUPPORT | |
58 | case EMMC_MODE: | |
59 | case SD_MODE: | |
60 | case SD_MODE1: | |
61 | return BOOT_DEVICE_MMC1; | |
62 | #endif | |
63 | default: | |
64 | printf("Invalid Boot Mode:0x%x\n", bootmode); | |
65 | break; | |
66 | } | |
67 | ||
68 | return 0; | |
69 | } | |
70 | ||
2b1cdafa | 71 | u32 spl_boot_mode(const u32 boot_device) |
e6a9ed04 MS |
72 | { |
73 | switch (spl_boot_device()) { | |
74 | case BOOT_DEVICE_RAM: | |
75 | return 0; | |
76 | case BOOT_DEVICE_MMC1: | |
77 | return MMCSD_MODE_FS; | |
78 | default: | |
79 | puts("spl: error: unsupported device\n"); | |
80 | hang(); | |
81 | } | |
82 | } | |
83 | ||
84 | __weak void psu_init(void) | |
85 | { | |
86 | /* | |
87 | * This function is overridden by the one in | |
88 | * board/xilinx/zynqmp/(platform)/psu_init_gpl.c, if it exists. | |
89 | */ | |
90 | } | |
91 | ||
92 | #ifdef CONFIG_SPL_OS_BOOT | |
93 | int spl_start_uboot(void) | |
94 | { | |
95 | return 0; | |
96 | } | |
97 | #endif | |
98 | ||
99 | #ifdef CONFIG_SPL_LOAD_FIT | |
100 | int board_fit_config_name_match(const char *name) | |
101 | { | |
102 | /* Just empty function now - can't decide what to choose */ | |
103 | debug("%s: %s\n", __func__, name); | |
104 | ||
105 | return 0; | |
106 | } | |
107 | #endif |