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1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2013 The Chromium OS Authors.
4  */
5 
6 #include <common.h>
7 #include <asm/arch/cpu.h>
8 #include <asm/arch/spl.h>
9 #include <asm/arch/clk.h>
10 
11 #define SIGNATURE	0xdeadbeef
12 
13 /* Parameters of early board initialization in SPL */
14 static struct spl_machine_param machine_param
15 		__attribute__((section(".machine_param"))) = {
16 	.signature	= SIGNATURE,
17 	.version	= 1,
18 	.params		= "vmubfasirM",
19 	.size		= sizeof(machine_param),
20 
21 	.mem_iv_size	= 0x1f,
22 	.mem_type	= DDR_MODE_DDR3,
23 
24 	/*
25 	 * Set uboot_size to 0x100000 bytes.
26 	 *
27 	 * This is an overly conservative value chosen to accommodate all
28 	 * possible U-Boot image.  You are advised to set this value to a
29 	 * smaller realistic size via scripts that modifies the .machine_param
30 	 * section of output U-Boot image.
31 	 */
32 	.uboot_size	= 0x100000,
33 
34 	.boot_source	= BOOT_MODE_OM,
35 	.frequency_mhz	= 800,
36 	.arm_freq_mhz	= 900,
37 	.serial_base	= 0x12c30000,
38 	.i2c_base	= 0x12c60000,
39 	.mem_manuf	= MEM_MANUF_SAMSUNG,
40 };
41 
spl_get_machine_params(void)42 struct spl_machine_param *spl_get_machine_params(void)
43 {
44 	if (machine_param.signature != SIGNATURE) {
45 		/* Will hang if SIGNATURE dont match */
46 		while (1)
47 			;
48 	}
49 
50 	return &machine_param;
51 }
52