mirror of
https://github.com/AsahiLinux/u-boot
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c44bb3a30f
Tegra20 has a Cortex A9 r1p1, and Tegra30 has a Cortex A9 r2p9. As such, some CPU errata exist, and must be worked around. These must be worked around in the bootloader, since in general, the kernel (especially a multi-platform kernel) needs to support being launched in non-secure mode (normal world), and hence may not be able to write to the CP15 register to enable these workarounds. Signed-off-by: Stephen Warren <swarren@nvidia.com>
95 lines
3.1 KiB
C
95 lines
3.1 KiB
C
/*
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* (C) Copyright 2010-2012
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* NVIDIA Corporation <www.nvidia.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#ifndef _TEGRA30_COMMON_H_
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#define _TEGRA30_COMMON_H_
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#include "tegra-common.h"
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/*
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* Errata configuration
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*/
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#define CONFIG_ARM_ERRATA_743622
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#define CONFIG_ARM_ERRATA_751472
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/*
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* NS16550 Configuration
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*/
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#define V_NS16550_CLK 408000000 /* 408MHz (pllp_out0) */
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/*
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* High Level Configuration Options
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*/
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#define CONFIG_TEGRA30 /* in a NVidia Tegra30 core */
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/* Environment information, boards can override if required */
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#define CONFIG_LOADADDR 0x80408000 /* def. location for kernel */
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/*
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* Miscellaneous configurable options
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*/
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#define CONFIG_SYS_LOAD_ADDR 0x80A00800 /* default */
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#define CONFIG_STACKBASE 0x82800000 /* 40MB */
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/*-----------------------------------------------------------------------
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* Physical Memory Map
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*/
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#define CONFIG_SYS_TEXT_BASE 0x8010E000
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/*
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* Memory layout for where various images get loaded by boot scripts:
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*
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* scriptaddr can be pretty much anywhere that doesn't conflict with something
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* else. Put it above BOOTMAPSZ to eliminate conflicts.
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*
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* kernel_addr_r must be within the first 128M of RAM in order for the
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* kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
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* decompress itself to 0x8000 after the start of RAM, kernel_addr_r
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* should not overlap that area, or the kernel will have to copy itself
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* somewhere else before decompression. Similarly, the address of any other
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* data passed to the kernel shouldn't overlap the start of RAM. Pushing
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* this up to 16M allows for a sizable kernel to be decompressed below the
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* compressed load address.
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*
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* fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
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* the compressed kernel to be up to 16M too.
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*
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* ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
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* for the FDT/DTB to be up to 1M, which is hopefully plenty.
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*/
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#define MEM_LAYOUT_ENV_SETTINGS \
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"scriptaddr=0x90000000\0" \
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"kernel_addr_r=0x81000000\0" \
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"fdt_addr_r=0x82000000\0" \
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"ramdisk_addr_r=0x82100000\0"
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/* Defines for SPL */
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#define CONFIG_SPL_TEXT_BASE 0x80108000
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#define CONFIG_SYS_SPL_MALLOC_START 0x80090000
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#define CONFIG_SPL_STACK 0x800ffffc
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#define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/tegra30/u-boot-spl.lds"
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/* Total I2C ports on Tegra30 */
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#define TEGRA_I2C_NUM_CONTROLLERS 5
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#endif /* _TEGRA30_COMMON_H_ */
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