From c7ba99c8c18a606b95a89366bc4fd94a8295772f Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Thu, 12 May 2016 13:32:55 -0600 Subject: ARM: tegra: add core Tegra186 support This adds the bare minimum code to support Tegra186, with UART and eMMC working. The empty gpio.h is required because includes it. A future cleanup round may be able to solve this for all Tegra generations at once. mach-tegra/Makefile is adjusted not to compile anything for Tegra186, but instead to defer everything to mach-tegra/tegra186/Makefile. This allows the SoC code to pick-and-choose which of the C files in the "common" mach-tegra/ directory to compile in based on the SoC's needs. Most of the code is not valid for Tegra186, and this approach removes the need for mach-tegra/Makefile to contain many SoC-specific ifdefs. This approach may be applied to all other Tegra SoCs in a future cleanup round. board186.c is introduced to replace board.c and board2.c. These files currently contain a slew of SoC- and board-specific code that is not valid for Tegra186. This approach avoids adding yet more ifdefs to those files. A future cleanup round may refactor most of board*.c into board-/ SoC-specific functions files thus allowing the top-level functions like board_init_early_f to be shared again. Signed-off-by: Stephen Warren Reviewed-by: Simon Glass Signed-off-by: Tom Warren --- include/configs/tegra186-common.h | 71 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 include/configs/tegra186-common.h (limited to 'include/configs/tegra186-common.h') diff --git a/include/configs/tegra186-common.h b/include/configs/tegra186-common.h new file mode 100644 index 0000000..aa7b9d0 --- /dev/null +++ b/include/configs/tegra186-common.h @@ -0,0 +1,71 @@ +/* + * Copyright 2013-2016, NVIDIA CORPORATION. + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef _TEGRA186_COMMON_H_ +#define _TEGRA186_COMMON_H_ + +#include "tegra-common.h" + +/* Cortex-A57 uses a cache line size of 64 bytes */ +#define CONFIG_SYS_CACHELINE_SIZE 64 + +/* + * NS16550 Configuration + */ +#define V_NS16550_CLK 408000000 /* 408MHz (pllp_out0) */ + +/* + * Miscellaneous configurable options + */ +#define CONFIG_STACKBASE 0x82800000 /* 40MB */ + +/*----------------------------------------------------------------------- + * Physical Memory Map + */ + +#define CONFIG_SYS_TEXT_BASE 0x80080000 + +/* Generic Interrupt Controller */ +#define CONFIG_GICV2 + +/* + * Memory layout for where various images get loaded by boot scripts: + * + * scriptaddr can be pretty much anywhere that doesn't conflict with something + * else. Put it above BOOTMAPSZ to eliminate conflicts. + * + * pxefile_addr_r can be pretty much anywhere that doesn't conflict with + * something else. Put it above BOOTMAPSZ to eliminate conflicts. + * + * kernel_addr_r must be within the first 128M of RAM in order for the + * kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will + * decompress itself to 0x8000 after the start of RAM, kernel_addr_r + * should not overlap that area, or the kernel will have to copy itself + * somewhere else before decompression. Similarly, the address of any other + * data passed to the kernel shouldn't overlap the start of RAM. Pushing + * this up to 16M allows for a sizable kernel to be decompressed below the + * compressed load address. + * + * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for + * the compressed kernel to be up to 16M too. + * + * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows + * for the FDT/DTB to be up to 1M, which is hopefully plenty. + */ +#define CONFIG_LOADADDR 0x80080000 +#define MEM_LAYOUT_ENV_SETTINGS \ + "scriptaddr=0x90000000\0" \ + "pxefile_addr_r=0x90100000\0" \ + "kernel_addr_r=" __stringify(CONFIG_LOADADDR) "\0" \ + "fdt_addr_r=0x82000000\0" \ + "ramdisk_addr_r=0x82100000\0" + +/* Defines for SPL */ +#define CONFIG_SPL_TEXT_BASE 0x80108000 +#define CONFIG_SYS_SPL_MALLOC_START 0x80090000 +#define CONFIG_SPL_STACK 0x800ffffc + +#endif -- cgit v1.1