1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright 2013-2016, NVIDIA CORPORATION.
4 */
5
6#ifndef _TEGRA186_COMMON_H_
7#define _TEGRA186_COMMON_H_
8
9#include "tegra-common.h"
10
11/*
12 * NS16550 Configuration
13 */
14#define V_NS16550_CLK		408000000	/* 408MHz (pllp_out0) */
15
16/*-----------------------------------------------------------------------
17 * Physical Memory Map
18 */
19
20#undef FDTFILE
21#define BOOTENV_EFI_SET_FDTFILE_FALLBACK                                  \
22        "if test -z \"${fdtfile}\" -a -n \"${soc}\"; then "               \
23          "setenv efi_fdtfile ${vendor}/${soc}-${board}${boardver}.dtb; "           \
24        "fi; "
25
26/*
27 * Memory layout for where various images get loaded by boot scripts:
28 *
29 * scriptaddr can be pretty much anywhere that doesn't conflict with something
30 *   else. Put it above BOOTMAPSZ to eliminate conflicts.
31 *
32 * pxefile_addr_r can be pretty much anywhere that doesn't conflict with
33 *   something else. Put it above BOOTMAPSZ to eliminate conflicts.
34 *
35 * kernel_addr_r must be within the first 128M of RAM in order for the
36 *   kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
37 *   decompress itself to 0x8000 after the start of RAM, kernel_addr_r
38 *   should not overlap that area, or the kernel will have to copy itself
39 *   somewhere else before decompression. Similarly, the address of any other
40 *   data passed to the kernel shouldn't overlap the start of RAM. Pushing
41 *   this up to 16M allows for a sizable kernel to be decompressed below the
42 *   compressed load address.
43 *
44 * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
45 *   the compressed kernel to be up to 16M too.
46 *
47 * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
48 *   for the FDT/DTB to be up to 1M, which is hopefully plenty.
49 */
50#define MEM_LAYOUT_ENV_SETTINGS \
51	"scriptaddr=0x90000000\0" \
52	"pxefile_addr_r=0x90100000\0" \
53	"kernel_addr_r=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \
54	"fdt_addr_r=0x82000000\0" \
55	"ramdisk_addr_r=0x82100000\0"
56
57#endif
58