mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 01:38:22 +00:00
9814fb272f
With commit 06985289d4 ("watchdog: Implement generic watchdog_reset()
version") the init sequence has changed in arch_misc_init(), resulting
in a re-appearance of the d-cache issue on MT7688 boards (e.g. gardena).
When this happens, the first (or sometimes later ones as well) TFTP
command hangs and does not complete correctly. This leads to the
assumption that the d-cache is not in a clean state once the ethernet
driver is called (d-cache is used here for the buffers). The old work-
around with the cache flush somehow does not work any more now with
the new code change.
Unfortunately adding CONFIG_SYS_MALLOC_CLEAR_ON_INIT also did not fix
this issue. With v2019.07-rc3 it shows again. The time of accessing
the data seems to be very important here. It needs to be "very late"
in the boot process.
Testing has shown, that copying a 64KiB area in DDR at a very late
bootup time, directly before calling into the prompt, fixes this issue.
Flushing of the complete d-cache does not seem to necessary, as this
copy alone seems to fix this problem.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
481 lines
11 KiB
Text
481 lines
11 KiB
Text
menu "MIPS architecture"
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depends on MIPS
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config SYS_ARCH
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default "mips"
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config SYS_CPU
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default "mips32" if CPU_MIPS32
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default "mips64" if CPU_MIPS64
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choice
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prompt "Target select"
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optional
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config TARGET_QEMU_MIPS
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bool "Support qemu-mips"
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select ROM_EXCEPTION_VECTORS
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select SUPPORTS_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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select SUPPORTS_CPU_MIPS64_R1
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select SUPPORTS_CPU_MIPS64_R2
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select SUPPORTS_LITTLE_ENDIAN
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config TARGET_MALTA
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bool "Support malta"
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select DM
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select DM_SERIAL
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select DYNAMIC_IO_PORT_BASE
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select MIPS_CM
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select MIPS_INSERT_BOOT_CONFIG
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select MIPS_L1_CACHE_SHIFT_6
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select MIPS_L2_CACHE
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select OF_CONTROL
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select OF_ISA_BUS
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select ROM_EXCEPTION_VECTORS
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select SUPPORTS_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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select SUPPORTS_CPU_MIPS32_R6
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select SUPPORTS_CPU_MIPS64_R1
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select SUPPORTS_CPU_MIPS64_R2
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select SUPPORTS_CPU_MIPS64_R6
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select SUPPORTS_LITTLE_ENDIAN
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select SWAP_IO_SPACE
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imply CMD_DM
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config TARGET_VCT
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bool "Support vct"
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select ROM_EXCEPTION_VECTORS
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select SUPPORTS_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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select SYS_MIPS_CACHE_INIT_RAM_LOAD
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config ARCH_ATH79
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bool "Support QCA/Atheros ath79"
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select DM
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select OF_CONTROL
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imply CMD_DM
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config ARCH_MSCC
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bool "Support MSCC VCore-III"
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select OF_CONTROL
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select DM
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config ARCH_BMIPS
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bool "Support BMIPS SoCs"
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select CLK
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select CPU
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select DM
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select OF_CONTROL
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select RAM
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select SYSRESET
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imply CMD_DM
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config ARCH_MTMIPS
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bool "Support MediaTek MIPS platforms"
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imply CMD_DM
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select DISPLAY_CPUINFO
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select DM
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imply DM_ETH
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imply DM_GPIO
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select DM_SERIAL
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imply DM_SPI
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imply DM_SPI_FLASH
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select LAST_STAGE_INIT
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select MIPS_TUNE_24KC
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select OF_CONTROL
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select ROM_EXCEPTION_VECTORS
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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select SUPPORTS_LITTLE_ENDIAN
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select SYSRESET
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config ARCH_JZ47XX
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bool "Support Ingenic JZ47xx"
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select SUPPORT_SPL
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select OF_CONTROL
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select DM
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config MACH_PIC32
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bool "Support Microchip PIC32"
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select DM
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select OF_CONTROL
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imply CMD_DM
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config TARGET_BOSTON
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bool "Support Boston"
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select DM
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select DM_SERIAL
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select MIPS_CM
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select MIPS_L1_CACHE_SHIFT_6
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select MIPS_L2_CACHE
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select OF_BOARD_SETUP
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select OF_CONTROL
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select ROM_EXCEPTION_VECTORS
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select SUPPORTS_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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select SUPPORTS_CPU_MIPS32_R6
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select SUPPORTS_CPU_MIPS64_R1
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select SUPPORTS_CPU_MIPS64_R2
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select SUPPORTS_CPU_MIPS64_R6
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select SUPPORTS_LITTLE_ENDIAN
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imply CMD_DM
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config TARGET_XILFPGA
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bool "Support Imagination Xilfpga"
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select DM
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select DM_ETH
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select DM_GPIO
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select DM_SERIAL
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select MIPS_L1_CACHE_SHIFT_4
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select OF_CONTROL
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select ROM_EXCEPTION_VECTORS
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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select SUPPORTS_LITTLE_ENDIAN
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imply CMD_DM
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help
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This supports IMGTEC MIPSfpga platform
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endchoice
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source "board/imgtec/boston/Kconfig"
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source "board/imgtec/malta/Kconfig"
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source "board/imgtec/xilfpga/Kconfig"
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source "board/micronas/vct/Kconfig"
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source "board/qemu-mips/Kconfig"
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source "arch/mips/mach-ath79/Kconfig"
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source "arch/mips/mach-mscc/Kconfig"
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source "arch/mips/mach-bmips/Kconfig"
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source "arch/mips/mach-jz47xx/Kconfig"
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source "arch/mips/mach-pic32/Kconfig"
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source "arch/mips/mach-mtmips/Kconfig"
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if MIPS
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choice
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prompt "Endianness selection"
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help
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Some MIPS boards can be configured for either little or big endian
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byte order. These modes require different U-Boot images. In general there
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is one preferred byteorder for a particular system but some systems are
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just as commonly used in the one or the other endianness.
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config SYS_BIG_ENDIAN
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bool "Big endian"
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depends on SUPPORTS_BIG_ENDIAN
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config SYS_LITTLE_ENDIAN
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bool "Little endian"
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depends on SUPPORTS_LITTLE_ENDIAN
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endchoice
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choice
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prompt "CPU selection"
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default CPU_MIPS32_R2
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config CPU_MIPS32_R1
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bool "MIPS32 Release 1"
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depends on SUPPORTS_CPU_MIPS32_R1
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select 32BIT
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help
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Choose this option to build an U-Boot for release 1 through 5 of the
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MIPS32 architecture.
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config CPU_MIPS32_R2
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bool "MIPS32 Release 2"
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depends on SUPPORTS_CPU_MIPS32_R2
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select 32BIT
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help
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Choose this option to build an U-Boot for release 2 through 5 of the
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MIPS32 architecture.
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config CPU_MIPS32_R6
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bool "MIPS32 Release 6"
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depends on SUPPORTS_CPU_MIPS32_R6
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select 32BIT
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help
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Choose this option to build an U-Boot for release 6 or later of the
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MIPS32 architecture.
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config CPU_MIPS64_R1
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bool "MIPS64 Release 1"
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depends on SUPPORTS_CPU_MIPS64_R1
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select 64BIT
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help
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Choose this option to build a kernel for release 1 through 5 of the
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MIPS64 architecture.
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config CPU_MIPS64_R2
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bool "MIPS64 Release 2"
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depends on SUPPORTS_CPU_MIPS64_R2
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select 64BIT
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help
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Choose this option to build a kernel for release 2 through 5 of the
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MIPS64 architecture.
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config CPU_MIPS64_R6
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bool "MIPS64 Release 6"
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depends on SUPPORTS_CPU_MIPS64_R6
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select 64BIT
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help
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Choose this option to build a kernel for release 6 or later of the
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MIPS64 architecture.
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endchoice
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menu "General setup"
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config ROM_EXCEPTION_VECTORS
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bool "Build U-Boot image with exception vectors"
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help
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Enable this to include exception vectors in the U-Boot image. This is
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required if the U-Boot entry point is equal to the address of the
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CPU reset exception vector (e.g. U-Boot as ROM loader in Qemu,
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U-Boot booted from parallel NOR flash).
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Disable this, if the U-Boot image is booted from DRAM (e.g. by SPL).
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In that case the image size will be reduced by 0x500 bytes.
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config MIPS_CM_BASE
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hex "MIPS CM GCR Base Address"
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depends on MIPS_CM
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default 0x16100000 if TARGET_BOSTON
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default 0x1fbf8000
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help
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The physical base address at which to map the MIPS Coherence Manager
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Global Configuration Registers (GCRs). This should be set such that
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the GCRs occupy a region of the physical address space which is
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otherwise unused, or at minimum that software doesn't need to access.
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config MIPS_CACHE_INDEX_BASE
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hex "Index base address for cache initialisation"
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default 0x80000000 if CPU_MIPS32
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default 0xffffffff80000000 if CPU_MIPS64
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help
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This is the base address for a memory block, which is used for
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initialising the cache lines. This is also the base address of a memory
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block which is used for loading and filling cache lines when
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SYS_MIPS_CACHE_INIT_RAM_LOAD is selected.
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Normally this is CKSEG0. If the MIPS system needs to move this block
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to some SRAM or ScratchPad RAM, adapt this option accordingly.
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config MIPS_RELOCATION_TABLE_SIZE
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hex "Relocation table size"
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range 0x100 0x10000
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default "0x8000"
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---help---
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A table of relocation data will be appended to the U-Boot binary
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and parsed in relocate_code() to fix up all offsets in the relocated
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U-Boot.
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This option allows the amount of space reserved for the table to be
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adjusted in a range from 256 up to 64k. The default is 32k and should
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be ok in most cases. Reduce this value to shrink the size of U-Boot
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binary.
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The build will fail and a valid size suggested if this is too small.
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If unsure, leave at the default value.
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endmenu
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menu "OS boot interface"
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config MIPS_BOOT_CMDLINE_LEGACY
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bool "Hand over legacy command line to Linux kernel"
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default y
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help
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Enable this option if you want U-Boot to hand over the Yamon-style
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command line to the kernel. All bootargs will be prepared as argc/argv
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compatible list. The argument count (argc) is stored in register $a0.
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The address of the argument list (argv) is stored in register $a1.
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config MIPS_BOOT_ENV_LEGACY
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bool "Hand over legacy environment to Linux kernel"
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default y
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help
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Enable this option if you want U-Boot to hand over the Yamon-style
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environment to the kernel. Information like memory size, initrd
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address and size will be prepared as zero-terminated key/value list.
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The address of the environment is stored in register $a2.
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config MIPS_BOOT_FDT
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bool "Hand over a flattened device tree to Linux kernel"
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default n
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help
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Enable this option if you want U-Boot to hand over a flattened
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device tree to the kernel. According to UHI register $a0 will be set
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to -2 and the FDT address is stored in $a1.
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endmenu
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config SUPPORTS_BIG_ENDIAN
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bool
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config SUPPORTS_LITTLE_ENDIAN
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bool
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config SUPPORTS_CPU_MIPS32_R1
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bool
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config SUPPORTS_CPU_MIPS32_R2
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bool
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config SUPPORTS_CPU_MIPS32_R6
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bool
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config SUPPORTS_CPU_MIPS64_R1
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bool
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config SUPPORTS_CPU_MIPS64_R2
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bool
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config SUPPORTS_CPU_MIPS64_R6
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bool
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config CPU_MIPS32
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bool
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default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
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config CPU_MIPS64
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bool
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default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
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config MIPS_TUNE_4KC
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bool
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config MIPS_TUNE_14KC
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bool
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config MIPS_TUNE_24KC
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bool
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config MIPS_TUNE_34KC
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bool
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config MIPS_TUNE_74KC
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bool
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config 32BIT
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bool
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config 64BIT
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bool
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config SWAP_IO_SPACE
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bool
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config SYS_MIPS_CACHE_INIT_RAM_LOAD
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bool
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config MIPS_INIT_STACK_IN_SRAM
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bool
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default n
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help
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Select this if the initial stack frame could be setup in SRAM.
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Normally the initial stack frame is set up in DRAM which is often
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only available after lowlevel_init. With this option the initial
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stack frame and the early C environment is set up before
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lowlevel_init. Thus lowlevel_init does not need to be implemented
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in assembler.
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config SYS_DCACHE_SIZE
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int
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default 0
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help
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The total size of the L1 Dcache, if known at compile time.
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config SYS_DCACHE_LINE_SIZE
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int
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default 0
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help
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The size of L1 Dcache lines, if known at compile time.
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config SYS_ICACHE_SIZE
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int
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default 0
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help
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The total size of the L1 ICache, if known at compile time.
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config SYS_ICACHE_LINE_SIZE
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int
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default 0
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help
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The size of L1 Icache lines, if known at compile time.
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config SYS_CACHE_SIZE_AUTO
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def_bool y if SYS_DCACHE_SIZE = 0 && SYS_ICACHE_SIZE = 0 && \
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SYS_DCACHE_LINE_SIZE = 0 && SYS_ICACHE_LINE_SIZE = 0
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help
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Select this (or let it be auto-selected by not defining any cache
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sizes) in order to allow U-Boot to automatically detect the sizes
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of caches at runtime. This has a small cost in code size & runtime
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so if you know the cache configuration for your system at compile
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time it would be beneficial to configure it.
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config MIPS_L1_CACHE_SHIFT_4
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bool
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config MIPS_L1_CACHE_SHIFT_5
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bool
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config MIPS_L1_CACHE_SHIFT_6
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bool
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config MIPS_L1_CACHE_SHIFT_7
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bool
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config MIPS_L1_CACHE_SHIFT
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int
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default "7" if MIPS_L1_CACHE_SHIFT_7
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default "6" if MIPS_L1_CACHE_SHIFT_6
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default "5" if MIPS_L1_CACHE_SHIFT_5
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default "4" if MIPS_L1_CACHE_SHIFT_4
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default "5"
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config MIPS_L2_CACHE
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bool
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help
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Select this if your system includes an L2 cache and you want U-Boot
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to initialise & maintain it.
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config DYNAMIC_IO_PORT_BASE
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bool
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config MIPS_CM
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bool
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help
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Select this if your system contains a MIPS Coherence Manager and you
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wish U-Boot to configure it or make use of it to retrieve system
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information such as cache configuration.
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config MIPS_INSERT_BOOT_CONFIG
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bool
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default n
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help
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Enable this to insert some board-specific boot configuration in
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the U-Boot binary at offset 0x10.
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config MIPS_BOOT_CONFIG_WORD0
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hex
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depends on MIPS_INSERT_BOOT_CONFIG
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default 0x420 if TARGET_MALTA
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default 0x0
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help
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Value which is inserted as boot config word 0.
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config MIPS_BOOT_CONFIG_WORD1
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hex
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depends on MIPS_INSERT_BOOT_CONFIG
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default 0x0
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help
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Value which is inserted as boot config word 1.
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endif
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endmenu
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