1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2016 Google, Inc
4  * Written by Simon Glass <sjg@chromium.org>
5  */
6 
7 #include <common.h>
8 #include <bloblist.h>
9 #include <cpu_func.h>
10 #include <debug_uart.h>
11 #include <handoff.h>
12 #include <init.h>
13 #include <log.h>
14 #include <asm/global_data.h>
15 #include <asm/mtrr.h>
16 
misc_init_r(void)17 int misc_init_r(void)
18 {
19 	return 0;
20 }
21 
dram_init(void)22 int dram_init(void)
23 {
24 	struct spl_handoff *ho;
25 
26 	ho = bloblist_find(BLOBLISTT_SPL_HANDOFF, sizeof(*ho));
27 	if (!ho)
28 		return log_msg_ret("Missing SPL hand-off info", -ENOENT);
29 	handoff_load_dram_size(ho);
30 #ifdef CONFIG_TPL
31 	/* TODO(sjg@chromium.org): MTRR cannot be adjusted without a hang */
32 	mtrr_add_request(MTRR_TYPE_WRBACK, 0, 2ULL << 30);
33 #else
34 	mtrr_add_request(MTRR_TYPE_WRBACK, 0, gd->ram_size);
35 	mtrr_commit(true);
36 #endif
37 
38 	return 0;
39 }
40 
checkcpu(void)41 int checkcpu(void)
42 {
43 	return 0;
44 }
45 
print_cpuinfo(void)46 int print_cpuinfo(void)
47 {
48 	return 0;
49 }
50 
board_debug_uart_init(void)51 void board_debug_uart_init(void)
52 {
53 }
54 
dram_init_banksize(void)55 int dram_init_banksize(void)
56 {
57 	struct spl_handoff *ho;
58 
59 	ho = bloblist_find(BLOBLISTT_SPL_HANDOFF, sizeof(*ho));
60 	if (!ho)
61 		return log_msg_ret("Missing SPL hand-off info", -ENOENT);
62 	handoff_load_dram_banks(ho);
63 
64 	return 0;
65 }
66