1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (c) 2012 The Chromium OS Authors.
4  */
5 
6 #include <common.h>
7 #include <asm/arch/spl.h>
8 
9 #define SIGNATURE	0xdeadbeef
10 
11 /* Parameters of early board initialization in SPL */
12 static struct spl_machine_param machine_param
13 		__attribute__((section(".machine_param"))) = {
14 	.signature	= SIGNATURE,
15 	.version	= 1,
16 	.params		= "vmubfasirM",
17 	.size		= sizeof(machine_param),
18 
19 	.mem_iv_size	= 0x1f,
20 	.mem_type	= DDR_MODE_DDR3,
21 
22 	/*
23 	 * Set uboot_size to 0x100000 bytes.
24 	 *
25 	 * This is an overly conservative value chosen to accommodate all
26 	 * possible U-Boot image.  You are advised to set this value to a
27 	 * smaller realistic size via scripts that modifies the .machine_param
28 	 * section of output U-Boot image.
29 	 */
30 	.uboot_size	= 0x100000,
31 
32 	.boot_source	= BOOT_MODE_OM,
33 	.frequency_mhz	= 800,
34 	.arm_freq_mhz	= 1000,
35 	.serial_base	= 0x12c30000,
36 	.i2c_base	= 0x12c60000,
37 	.mem_manuf	= MEM_MANUF_SAMSUNG,
38 };
39 
40 struct spl_machine_param *spl_get_machine_params(void)
41 {
42 	if (machine_param.signature != SIGNATURE) {
43 		/* Will hang if SIGNATURE dont match */
44 		while (1)
45 			;
46 	}
47 
48 	return &machine_param;
49 }
50