xref: /openbmc/u-boot/board/samsung/arndale/arndale_spl.c (revision 83d290c56fab2d38cd1ab4c4cc7099559c1d5046)
1*83d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+
2a2ac68fbSChander Kashyap /*
3a2ac68fbSChander Kashyap  * Copyright (c) 2012 The Chromium OS Authors.
4a2ac68fbSChander Kashyap  */
5a2ac68fbSChander Kashyap 
6a2ac68fbSChander Kashyap #include <common.h>
7a2ac68fbSChander Kashyap #include <asm/arch/spl.h>
8a2ac68fbSChander Kashyap 
9a2ac68fbSChander Kashyap #define SIGNATURE	0xdeadbeef
10a2ac68fbSChander Kashyap 
11a2ac68fbSChander Kashyap /* Parameters of early board initialization in SPL */
12a2ac68fbSChander Kashyap static struct spl_machine_param machine_param
13a2ac68fbSChander Kashyap 		__attribute__((section(".machine_param"))) = {
14a2ac68fbSChander Kashyap 	.signature	= SIGNATURE,
15a2ac68fbSChander Kashyap 	.version	= 1,
16a2ac68fbSChander Kashyap 	.params		= "vmubfasirM",
17a2ac68fbSChander Kashyap 	.size		= sizeof(machine_param),
18a2ac68fbSChander Kashyap 
19a2ac68fbSChander Kashyap 	.mem_iv_size	= 0x1f,
20a2ac68fbSChander Kashyap 	.mem_type	= DDR_MODE_DDR3,
21a2ac68fbSChander Kashyap 
22a2ac68fbSChander Kashyap 	/*
23a2ac68fbSChander Kashyap 	 * Set uboot_size to 0x100000 bytes.
24a2ac68fbSChander Kashyap 	 *
25a2ac68fbSChander Kashyap 	 * This is an overly conservative value chosen to accommodate all
26a2ac68fbSChander Kashyap 	 * possible U-Boot image.  You are advised to set this value to a
27a2ac68fbSChander Kashyap 	 * smaller realistic size via scripts that modifies the .machine_param
28a2ac68fbSChander Kashyap 	 * section of output U-Boot image.
29a2ac68fbSChander Kashyap 	 */
30a2ac68fbSChander Kashyap 	.uboot_size	= 0x100000,
31a2ac68fbSChander Kashyap 
32a2ac68fbSChander Kashyap 	.boot_source	= BOOT_MODE_OM,
33a2ac68fbSChander Kashyap 	.frequency_mhz	= 800,
34a2ac68fbSChander Kashyap 	.arm_freq_mhz	= 1000,
35a2ac68fbSChander Kashyap 	.serial_base	= 0x12c30000,
36a2ac68fbSChander Kashyap 	.i2c_base	= 0x12c60000,
37a2ac68fbSChander Kashyap 	.mem_manuf	= MEM_MANUF_SAMSUNG,
38a2ac68fbSChander Kashyap };
39a2ac68fbSChander Kashyap 
spl_get_machine_params(void)40a2ac68fbSChander Kashyap struct spl_machine_param *spl_get_machine_params(void)
41a2ac68fbSChander Kashyap {
42a2ac68fbSChander Kashyap 	if (machine_param.signature != SIGNATURE) {
43a2ac68fbSChander Kashyap 		/* Will hang if SIGNATURE dont match */
44a2ac68fbSChander Kashyap 		while (1)
45a2ac68fbSChander Kashyap 			;
46a2ac68fbSChander Kashyap 	}
47a2ac68fbSChander Kashyap 
48a2ac68fbSChander Kashyap 	return &machine_param;
49a2ac68fbSChander Kashyap }
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