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8ae6e79ee0
EN751221 is a 34Kc so it has two VPEs (threads) but MIPS_SMP_MT
requires VEIC to be enabled in the interrupt controller, which only
became supported in
commit 2ee2a685ee ("irqchip/econet-en751221: Support MIPS 34Kc VEIC mode")
Register SMP_MT on startup and override init_secondary with CPU
interrupt unmasking as required by the EN751221 VEIC intc hardware.
Signed-off-by: Caleb James DeLisle <cjd@cjdns.fr>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
49 lines
1.4 KiB
Plaintext
49 lines
1.4 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
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if ECONET
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choice
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prompt "EcoNet SoC selection"
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default SOC_ECONET_EN751221
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help
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Select EcoNet MIPS SoC type. Individual SoCs within a family are
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very similar, so is it enough to select the right family, and
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then customize to the specific SoC using the device tree only.
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config SOC_ECONET_EN751221
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bool "EN751221 family"
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select COMMON_CLK
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select ECONET_EN751221_INTC
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select HAVE_PCI
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select IRQ_MIPS_CPU
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select PCI_DRIVERS_GENERIC
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select SYS_SUPPORTS_MULTITHREADING
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help
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The EN751221 family includes EN7512, RN7513, EN7521, EN7526.
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They are based on single core MIPS 34Kc processors. To boot
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this kernel, you will need a device tree such as
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MIPS_RAW_APPENDED_DTB=y, and a root filesystem.
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endchoice
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choice
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prompt "Devicetree selection"
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default DTB_ECONET_NONE
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help
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Select the devicetree.
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config DTB_ECONET_NONE
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bool "None"
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config DTB_ECONET_SMARTFIBER_XP8421_B
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bool "EN751221 SmartFiber XP8421-B"
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depends on SOC_ECONET_EN751221
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select BUILTIN_DTB
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help
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The SmartFiber XP8421-B is a device based on the EN751221 SoC.
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It has 512MB of memory and 256MB of NAND flash. This kernel
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needs only an appended initramfs to boot. It can be loaded
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through XMODEM and booted from memory in the bootloader, or
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it can be packed in tclinux.trx format and written to flash.
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endchoice
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endif
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