linux_old1/arch/arm/mach-tegra/Kconfig

117 lines
3.0 KiB
Plaintext
Raw Normal View History

if ARCH_TEGRA
comment "NVIDIA Tegra options"
config ARCH_TEGRA_2x_SOC
bool "Enable support for Tegra20 family"
select CPU_V7
select ARM_GIC
select ARCH_REQUIRE_GPIOLIB
select PINCTRL
select PINCTRL_TEGRA20
select USB_ARCH_HAS_EHCI if USB_SUPPORT
select USB_ULPI if USB
select USB_ULPI_VIEWPORT if USB_SUPPORT
select ARM_ERRATA_720789
select ARM_ERRATA_742230
select ARM_ERRATA_751472
select ARM_ERRATA_754327
select ARM_ERRATA_764369
select PL310_ERRATA_727915 if CACHE_L2X0
select PL310_ERRATA_769419 if CACHE_L2X0
select CPU_FREQ_TABLE if CPU_FREQ
help
Support for NVIDIA Tegra AP20 and T20 processors, based on the
ARM CortexA9MP CPU and the ARM PL310 L2 cache controller
config ARCH_TEGRA_3x_SOC
bool "Enable support for Tegra30 family"
select CPU_V7
select ARM_GIC
select ARCH_REQUIRE_GPIOLIB
select PINCTRL
select PINCTRL_TEGRA30
select USB_ARCH_HAS_EHCI if USB_SUPPORT
select USB_ULPI if USB
select USB_ULPI_VIEWPORT if USB_SUPPORT
select ARM_ERRATA_743622
select ARM_ERRATA_751472
select ARM_ERRATA_754322
select ARM_ERRATA_764369
select PL310_ERRATA_769419 if CACHE_L2X0
select CPU_FREQ_TABLE if CPU_FREQ
help
Support for NVIDIA Tegra T30 processor family, based on the
ARM CortexA9MP CPU and the ARM PL310 L2 cache controller
config TEGRA_PCI
bool "PCI Express support"
depends on ARCH_TEGRA_2x_SOC
select PCI
config TEGRA_AHB
bool "Enable AHB driver for NVIDIA Tegra SoCs"
default y
help
Adds AHB configuration functionality for NVIDIA Tegra SoCs,
which controls AHB bus master arbitration and some
perfomance parameters(priority, prefech size).
comment "Tegra board type"
choice
ARM: tegra: uncompress.h: Implement TEGRA_DEBUG_UART_AUTO_ODMDATA Tegra has 5 UARTS which could be used for low-level debug output. Commit fe26398 "ARM: tegra: uncompress.h: Choose a UART at runtime" implemented one method for the kernel to automatically determine which of these to use at run-time, so that the same DEBUG_LL-enabled kernel image could be used across multiple Tegra boards. The required bootloader-side setup for that option is implemented in NVIDIA's various downstream U-Boot branches, but the U-Boot maintainers have refused to accept it upstream. This change implements an alternative automatic UART selection option using ODMDATA. This is a 32-bit value programmed into Tegra's boot memory which provides a few pieces of basic board-specific information, including a field that indicates the console UART. Setting up this value is part of the standard Tegra boot architecture, and so requires no Tegra-specific hacks in the bootloader's UART driver. Note that in theory, the format of ODMDATA is board-specific. However, in practice all boards use the same location/size/values for the UART field. ODMDATA[19:18] (which drive the type of debug console) is more problematic, since some boards use value 2 for UART and others use 3. This patch just accepts either value; if this doesn't work well for a given board, I'd suggest simply not enabling this debug option when building for that board. Note that the kernel assumes the bootloader has already set up any required pinmux settings for the UART; there is no way the kernel can do this for itself prior to knowing which board it's running on. In practice, people using this feature are highly likely to be using bootloaders that have indeed configured the pinmux. This assumption existed prior to this patch. Signed-off-by: Stephen Warren <swarren@nvidia.com>
2012-03-27 02:49:57 +08:00
prompt "Default low-level debug console UART"
default TEGRA_DEBUG_UART_NONE
config TEGRA_DEBUG_UART_NONE
bool "None"
config TEGRA_DEBUG_UARTA
bool "UART-A"
config TEGRA_DEBUG_UARTB
bool "UART-B"
config TEGRA_DEBUG_UARTC
bool "UART-C"
config TEGRA_DEBUG_UARTD
bool "UART-D"
config TEGRA_DEBUG_UARTE
bool "UART-E"
endchoice
ARM: tegra: uncompress.h: Implement TEGRA_DEBUG_UART_AUTO_ODMDATA Tegra has 5 UARTS which could be used for low-level debug output. Commit fe26398 "ARM: tegra: uncompress.h: Choose a UART at runtime" implemented one method for the kernel to automatically determine which of these to use at run-time, so that the same DEBUG_LL-enabled kernel image could be used across multiple Tegra boards. The required bootloader-side setup for that option is implemented in NVIDIA's various downstream U-Boot branches, but the U-Boot maintainers have refused to accept it upstream. This change implements an alternative automatic UART selection option using ODMDATA. This is a 32-bit value programmed into Tegra's boot memory which provides a few pieces of basic board-specific information, including a field that indicates the console UART. Setting up this value is part of the standard Tegra boot architecture, and so requires no Tegra-specific hacks in the bootloader's UART driver. Note that in theory, the format of ODMDATA is board-specific. However, in practice all boards use the same location/size/values for the UART field. ODMDATA[19:18] (which drive the type of debug console) is more problematic, since some boards use value 2 for UART and others use 3. This patch just accepts either value; if this doesn't work well for a given board, I'd suggest simply not enabling this debug option when building for that board. Note that the kernel assumes the bootloader has already set up any required pinmux settings for the UART; there is no way the kernel can do this for itself prior to knowing which board it's running on. In practice, people using this feature are highly likely to be using bootloaders that have indeed configured the pinmux. This assumption existed prior to this patch. Signed-off-by: Stephen Warren <swarren@nvidia.com>
2012-03-27 02:49:57 +08:00
choice
prompt "Automatic low-level debug console UART"
default TEGRA_DEBUG_UART_AUTO_NONE
config TEGRA_DEBUG_UART_AUTO_NONE
bool "None"
config TEGRA_DEBUG_UART_AUTO_ODMDATA
bool "Via ODMDATA"
help
Automatically determines which UART to use for low-level debug based
on the ODMDATA value. This value is part of the BCT, and is written
to the boot memory device using nvflash, or other flashing tool.
When bits 19:18 are 3, then bits 17:15 indicate which UART to use;
0/1/2/3/4 are UART A/B/C/D/E.
config TEGRA_DEBUG_UART_AUTO_SCRATCH
bool "Via UART scratch register"
help
Automatically determines which UART to use for low-level debug based
on the UART scratch register value. Some bootloaders put ASCII 'D'
in this register when they initialize their own console UART output.
Using this option allows the kernel to automatically pick the same
UART.
endchoice
config TEGRA_EMC_SCALING_ENABLE
bool "Enable scaling the memory frequency"
endif