mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-24 11:59:46 +09:00
06264a79b4
Trimslice currently stores its environment at 512KiB into the SPI flash chip. The U-Boot binary has grown such that the size of the boot image (which includes the Tegra BCT, padding, and the U-Boot binary) is slightly larger than 512K now. Consequently, writing the boot image to flash corrupts the saved environment, and equally, writing to or erasing the environment will corrupt the bootloader, which in turn will cause the Tegra boot ROM to enter recovery mode during boot, making it look as if the system is non-operational. Note that tegra-uboot-flasher writes to the environment during the flashing process. Solve this by moving the environment as high as possible in flash. This will allow the U-Boot binary to roughly double in size before this problem is hit again, at which point there's nothing we can do anyway since the binary won't fit into flash. 99% of other Tegra boards store the environment in eMMC and use a negative value for CONFIG_ENV_OFFSET, which already automatically places the environment as near the end of boot flash as possible. The 1 remaining board hard-codes CONFIG_ENV_OFFSET to 2MiB, which allows for plenty more bloat. Reported-by: Stephen L Arnold <nerdboy@gentoo.org> Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
62 lines
1.3 KiB
C
62 lines
1.3 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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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __CONFIG_H
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#define __CONFIG_H
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#include <linux/sizes.h>
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#include "tegra20-common.h"
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/* High-level configuration options */
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#define CONFIG_TEGRA_BOARD_STRING "Compulab Trimslice"
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/* Board-specific serial config */
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#define CONFIG_TEGRA_ENABLE_UARTA
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#define CONFIG_TEGRA_UARTA_GPU
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#define CONFIG_SYS_NS16550_COM1 NV_PA_APB_UARTA_BASE
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#define CONFIG_MACH_TYPE MACH_TYPE_TRIMSLICE
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/* SPI */
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#define CONFIG_SF_DEFAULT_MODE SPI_MODE_0
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/* I2C */
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#define CONFIG_SYS_I2C_TEGRA
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/* SD/MMC */
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#define CONFIG_MMC
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#define CONFIG_GENERIC_MMC
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#define CONFIG_TEGRA_MMC
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/* Environment in SPI */
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#define CONFIG_ENV_IS_IN_SPI_FLASH
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#define CONFIG_ENV_SPI_MAX_HZ 48000000
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#define CONFIG_ENV_SPI_MODE SPI_MODE_0
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#define CONFIG_ENV_SECT_SIZE CONFIG_ENV_SIZE
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/* 1MiB flash, environment located as high as possible */
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#define CONFIG_ENV_OFFSET (SZ_1M - CONFIG_ENV_SIZE)
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/* USB Host support */
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#define CONFIG_USB_EHCI
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#define CONFIG_USB_EHCI_TEGRA
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#define CONFIG_USB_STORAGE
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/* USB networking support */
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#define CONFIG_USB_HOST_ETHER
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#define CONFIG_USB_ETHER_ASIX
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/* PCI host support */
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#define CONFIG_PCI
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#define CONFIG_PCI_PNP
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#define CONFIG_CMD_PCI
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/* General networking support */
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#include "tegra-common-post.h"
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#endif /* __CONFIG_H */
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