bfac084723
While T210 boards all have 38.4MHz crystals, per the TRM, the only supported configuration is to divide the crystal frequency by 2 to generate clk_m, which is what feeds the ARM generic timers amongst other things. Fix the value of COUNTER_FREQUENCY to reflect this divide-by-2. When I queried the 19.2 value in Tom's original T210 patches, I wasn't aware of this extra divide-by-2, and didn't notice any effect from the incorrect value, since its only used if U-Boot is booted in EL3, whereas I'm booting it in EL2. Reported-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
/*
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* (C) Copyright 2013-2015
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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 _P2371_2180_H
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#define _P2371_2180_H
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#include <linux/sizes.h>
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#include "tegra210-common.h"
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/* High-level configuration options */
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#define V_PROMPT "Tegra210 (P2371-2180) # "
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#define CONFIG_TEGRA_BOARD_STRING "NVIDIA P2371-2180"
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/* Board-specific serial config */
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#define CONFIG_TEGRA_ENABLE_UARTA
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/* I2C */
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#define CONFIG_SYS_I2C_TEGRA
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#define CONFIG_CMD_I2C
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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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#define CONFIG_CMD_MMC
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/* Environment in eMMC, at the end of 2nd "boot sector" */
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#define CONFIG_ENV_IS_IN_MMC
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#define CONFIG_SYS_MMC_ENV_DEV 0
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#define CONFIG_SYS_MMC_ENV_PART 2
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#define CONFIG_ENV_OFFSET (-CONFIG_ENV_SIZE)
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/* SPI */
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#define CONFIG_SPI_FLASH_WINBOND
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#define CONFIG_SF_DEFAULT_MODE SPI_MODE_0
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#define CONFIG_SF_DEFAULT_SPEED 24000000
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#define CONFIG_CMD_SPI
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#define CONFIG_CMD_SF
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#define CONFIG_SPI_FLASH_SIZE (4 << 20)
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/* USB2.0 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_MAX_CONTROLLER_COUNT 1
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#define CONFIG_USB_STORAGE
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#define CONFIG_CMD_USB
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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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/* General networking support */
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#define CONFIG_CMD_DHCP
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#include "tegra-common-usb-gadget.h"
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#include "tegra-common-post.h"
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/* Crystal is 38.4MHz. clk_m runs at half that rate */
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#define COUNTER_FREQUENCY 19200000
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#endif /* _P2371_2180_H */
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