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      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/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	= 1700,
     37 	.serial_base	= 0x12c30000,
     38 	.i2c_base	= 0x12c60000,
     39 	.mem_manuf	= MEM_MANUF_SAMSUNG,
     40 };
     41 
     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