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Commit 0e476d91 authored by Huacai Chen's avatar Huacai Chen Committed by Ralf Baechle
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MIPS: Loongson: Add Loongson-3 Kconfig options 



Added Kconfig options include: Loongson-3 CPU and machine definition,
CPU cache features, UEFI-like firmware interface (LEFI), HT-linked PCI,
and swiotlb support.

Signed-off-by: default avatarHuacai Chen <chenhc@lemote.com>
Signed-off-by: default avatarHongliang Tao <taohl@lemote.com>
Signed-off-by: default avatarHua Yan <yanh@lemote.com>
Tested-by: default avatarAlex Smith <alex.smith@imgtec.com>
Reviewed-by: default avatarAlex Smith <alex.smith@imgtec.com>
Cc: John Crispin <john@phrozen.org>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/6637


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 1299b0e0

arch/mips/Kconfig

+28 −1
Original line number Original line Diff line number Diff line
@@ -1153,6 +1153,18 @@ choice 
	prompt "CPU type"

	prompt "CPU type"

	default CPU_R4X00

	default CPU_R4X00





config CPU_LOONGSON3

	bool "Loongson 3 CPU"

	depends on SYS_HAS_CPU_LOONGSON3

	select CPU_SUPPORTS_64BIT_KERNEL

	select CPU_SUPPORTS_HIGHMEM

	select CPU_SUPPORTS_HUGEPAGES

	select WEAK_ORDERING

	select WEAK_REORDERING_BEYOND_LLSC

	help

		The Loongson 3 processor implements the MIPS64R2 instruction

		set with many extensions.



config CPU_LOONGSON2E

config CPU_LOONGSON2E

	bool "Loongson 2E"

	bool "Loongson 2E"

	depends on SYS_HAS_CPU_LOONGSON2E

	depends on SYS_HAS_CPU_LOONGSON2E
@@ -1549,6 +1561,10 @@ config CPU_BMIPS5000 
	select SYS_SUPPORTS_SMP

	select SYS_SUPPORTS_SMP

	select SYS_SUPPORTS_HOTPLUG_CPU

	select SYS_SUPPORTS_HOTPLUG_CPU





config SYS_HAS_CPU_LOONGSON3

	bool

	select CPU_SUPPORTS_CPUFREQ



config SYS_HAS_CPU_LOONGSON2E

config SYS_HAS_CPU_LOONGSON2E

	bool

	bool
@@ -1761,7 +1777,7 @@ choice 




config PAGE_SIZE_4KB

config PAGE_SIZE_4KB

	bool "4kB"

	bool "4kB"

	depends on !CPU_LOONGSON2

	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3

	help

	help

	 This option select the standard 4kB Linux page size.  On some

	 This option select the standard 4kB Linux page size.  On some

	 R3000-family processors this is the only available page size.  Using

	 R3000-family processors this is the only available page size.  Using
@@ -2493,6 +2509,17 @@ config PCI 
	  your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,

	  your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,

	  say Y, otherwise N.

	  say Y, otherwise N.





config HT_PCI

	bool "Support for HT-linked PCI"

	default y

	depends on CPU_LOONGSON3

	select PCI

	select PCI_DOMAINS

	help

	  Loongson family machines use Hyper-Transport bus for inter-core

	  connection and device connection. The PCI bus is a subordinate

	  linked at HT. Choose Y for Loongson-3 based machines.



config PCI_DOMAINS

config PCI_DOMAINS

	bool

	bool

arch/mips/loongson/Kconfig

+46 −0
Original line number Original line Diff line number Diff line
@@ -59,6 +59,35 @@ config LEMOTE_MACH2F 




	  These family machines include fuloong2f mini PC, yeeloong2f notebook,

	  These family machines include fuloong2f mini PC, yeeloong2f notebook,

	  LingLoong allinone PC and so forth.

	  LingLoong allinone PC and so forth.



config LEMOTE_MACH3A

	bool "Lemote Loongson 3A family machines"

	select ARCH_SPARSEMEM_ENABLE

	select GENERIC_ISA_DMA_SUPPORT_BROKEN

	select GENERIC_HARDIRQS_NO__DO_IRQ

	select BOOT_ELF32

	select BOARD_SCACHE

	select CSRC_R4K

	select CEVT_R4K

	select CPU_HAS_WB

	select HW_HAS_PCI

	select ISA

	select HT_PCI

	select I8259

	select IRQ_CPU

	select NR_CPUS_DEFAULT_4

	select SYS_HAS_CPU_LOONGSON3

	select SYS_HAS_EARLY_PRINTK

	select SYS_SUPPORTS_SMP

	select SYS_SUPPORTS_64BIT_KERNEL

	select SYS_SUPPORTS_HIGHMEM

	select SYS_SUPPORTS_LITTLE_ENDIAN

	select LOONGSON_MC146818

	select ZONE_DMA32

	select LEFI_FIRMWARE_INTERFACE

	help

		Lemote Loongson 3A family machines utilize the 3A revision of

		Loongson processor and RS780/SBX00 chipset.

endchoice

endchoice





config CS5536

config CS5536
@@ -86,8 +115,25 @@ config LOONGSON_UART_BASE 
	default y

	default y

	depends on EARLY_PRINTK || SERIAL_8250

	depends on EARLY_PRINTK || SERIAL_8250





config IOMMU_HELPER

	bool



config NEED_SG_DMA_LENGTH

	bool



config SWIOTLB

	bool "Soft IOMMU Support for All-Memory DMA"

	default y

	depends on CPU_LOONGSON3

	select IOMMU_HELPER

	select NEED_SG_DMA_LENGTH

	select NEED_DMA_MAP_STATE



config LOONGSON_MC146818

config LOONGSON_MC146818

	bool

	bool

	default n

	default n





config LEFI_FIRMWARE_INTERFACE

	bool



endif # MACH_LOONGSON
 
endif # MACH_LOONGSON

arch/mips/loongson/Platform

+1 −0
Original line number Original line Diff line number Diff line
@@ -30,3 +30,4 @@ platform-$(CONFIG_MACH_LOONGSON) += loongson/ 
cflags-$(CONFIG_MACH_LOONGSON) += -I$(srctree)/arch/mips/include/asm/mach-loongson -mno-branch-likely

cflags-$(CONFIG_MACH_LOONGSON) += -I$(srctree)/arch/mips/include/asm/mach-loongson -mno-branch-likely

load-$(CONFIG_LEMOTE_FULOONG2E) += 0xffffffff80100000

load-$(CONFIG_LEMOTE_FULOONG2E) += 0xffffffff80100000

load-$(CONFIG_LEMOTE_MACH2F) += 0xffffffff80200000

load-$(CONFIG_LEMOTE_MACH2F) += 0xffffffff80200000

load-$(CONFIG_CPU_LOONGSON3) += 0xffffffff80200000