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usr
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src
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linux-headers-5.15.0-190
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arch
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powerpc
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platforms
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8xx
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/usr/src/linux-headers-5.15.0-190/arch/powerpc/platforms/8xx
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/usr/src/linux-headers-5.15.0-190/arch/powerpc/platforms/8xx/Kconfig
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# SPDX-License-Identifier: GPL-2.0 config CPM1 bool select CPM choice prompt "8xx Machine Type" depends on PPC_8xx default MPC885ADS config MPC8XXFADS bool "FADS" config MPC86XADS bool "MPC86XADS" select CPM1 help MPC86x Application Development System by Freescale Semiconductor. The MPC86xADS is meant to serve as a platform for s/w and h/w development around the MPC86X processor families. config MPC885ADS bool "MPC885ADS" select CPM1 select OF_DYNAMIC help Freescale Semiconductor MPC885 Application Development System (ADS). Also known as DUET. The MPC885ADS is meant to serve as a platform for s/w and h/w development around the MPC885 processor family. config PPC_EP88XC bool "Embedded Planet EP88xC (a.k.a. CWH-PPC-885XN-VE)" select CPM1 help This enables support for the Embedded Planet EP88xC board. This board is also resold by Freescale as the QUICCStart MPC885 Evaluation System and/or the CWH-PPC-885XN-VE. config PPC_ADDER875 bool "Analogue & Micro Adder 875" select CPM1 help This enables support for the Analogue & Micro Adder 875 board. config TQM8XX bool "TQM8XX" select CPM1 help support for the mpc8xx based boards from TQM. endchoice menu "Freescale Ethernet driver platform-specific options" depends on (FS_ENET && MPC885ADS) config MPC8xx_SECOND_ETH bool "Second Ethernet channel" depends on MPC885ADS default y help This enables support for second Ethernet on MPC885ADS and MPC86xADS boards. The latter will use SCC1, for 885ADS you can select it below. choice prompt "Second Ethernet channel" depends on MPC8xx_SECOND_ETH default MPC8xx_SECOND_ETH_FEC2 config MPC8xx_SECOND_ETH_FEC2 bool "FEC2" depends on MPC885ADS help Enable FEC2 to serve as 2-nd Ethernet channel. Note that SMC2 (often 2-nd UART) will not work if this is enabled. config MPC8xx_SECOND_ETH_SCC3 bool "SCC3" depends on MPC885ADS help Enable SCC3 to serve as 2-nd Ethernet channel. Note that SMC1 (often 1-nd UART) will not work if this is enabled. endchoice endmenu # # MPC8xx Communication options # menu "MPC8xx CPM Options" depends on PPC_8xx # This doesn't really belong here, but it is convenient to ask # 8xx specific questions. comment "Generic MPC8xx Options" config 8xx_GPIO bool "GPIO API Support" select GPIOLIB help Saying Y here will cause the ports on an MPC8xx processor to be used with the GPIO API. If you say N here, the kernel needs less memory. If in doubt, say Y here. config 8xx_CPU15 bool "CPU15 Silicon Errata" depends on !HUGETLB_PAGE default y help This enables a workaround for erratum CPU15 on MPC8xx chips. This bug can cause incorrect code execution under certain circumstances. This workaround adds some overhead (a TLB miss every time execution crosses a page boundary), and you may wish to disable it if you have worked around the bug in the compiler (by not placing conditional branches or branches to LR or CTR in the last word of a page, with a target of the last cache line in the next page), or if you have used some other workaround. If in doubt, say Y here. choice prompt "Microcode patch selection" default NO_UCODE_PATCH help Help not implemented yet, coming soon. config NO_UCODE_PATCH bool "None" config USB_SOF_UCODE_PATCH bool "USB SOF patch" help Help not implemented yet, coming soon. config I2C_SPI_UCODE_PATCH bool "I2C/SPI relocation patch" help Help not implemented yet, coming soon. config I2C_SPI_SMC1_UCODE_PATCH bool "I2C/SPI/SMC1 relocation patch" help Help not implemented yet, coming soon. config SMC_UCODE_PATCH bool "SMC relocation patch" help This microcode relocates SMC1 and SMC2 parameter RAMs at offset 0x1ec0 and 0x1fc0 to allow extended parameter RAM for SCC3 and SCC4. endchoice config UCODE_PATCH bool default y depends on !NO_UCODE_PATCH menu "8xx advanced setup" depends on PPC_8xx config PIN_TLB bool "Pinned Kernel TLBs" depends on ADVANCED_OPTIONS help On the 8xx, we have 32 instruction TLBs and 32 data TLBs. In each table 4 TLBs can be pinned. It reduces the amount of usable TLBs to 28 (ie by 12%). That's the reason why we make it selectable. This option does nothing, it just activate the selection of what to pin. config PIN_TLB_DATA bool "Pinned TLB for DATA" depends on PIN_TLB default y help This pins the first 32 Mbytes of memory with 8M pages. config PIN_TLB_IMMR bool "Pinned TLB for IMMR" depends on PIN_TLB default y help This pins the IMMR area with a 512kbytes page. In case CONFIG_PIN_TLB_DATA is also selected, it will reduce CONFIG_PIN_TLB_DATA to 24 Mbytes. endmenu endmenu
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