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authorHuacai Chen <chenhc@lemote.com>2014-03-21 18:44:07 +0800
committerRalf Baechle <ralf@linux-mips.org>2014-03-31 18:17:12 +0200
commit0e476d91244ec6a9f6be3eb1963627340d031f99 (patch)
tree0d90f0b1d4d3a5190100a06ffefa7f547ac63bf8 /arch/mips
parent1299b0e05e106f621fff1504df5251f2a678097e (diff)
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: Huacai Chen <chenhc@lemote.com> Signed-off-by: Hongliang Tao <taohl@lemote.com> Signed-off-by: Hua Yan <yanh@lemote.com> Tested-by: Alex Smith <alex.smith@imgtec.com> Reviewed-by: Alex 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: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/Kconfig29
-rw-r--r--arch/mips/loongson/Kconfig46
-rw-r--r--arch/mips/loongson/Platform1
3 files changed, 75 insertions, 1 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 5a95acafcd05..a5ea11d8ec4e 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1153,6 +1153,18 @@ choice
prompt "CPU type"
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
bool "Loongson 2E"
depends on SYS_HAS_CPU_LOONGSON2E
@@ -1549,6 +1561,10 @@ config CPU_BMIPS5000
select SYS_SUPPORTS_SMP
select SYS_SUPPORTS_HOTPLUG_CPU
+config SYS_HAS_CPU_LOONGSON3
+ bool
+ select CPU_SUPPORTS_CPUFREQ
+
config SYS_HAS_CPU_LOONGSON2E
bool
@@ -1761,7 +1777,7 @@ choice
config PAGE_SIZE_4KB
bool "4kB"
- depends on !CPU_LOONGSON2
+ depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
help
This option select the standard 4kB Linux page size. On some
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,
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
bool
diff --git a/arch/mips/loongson/Kconfig b/arch/mips/loongson/Kconfig
index 263beb9322a8..a5d46f5efe03 100644
--- a/arch/mips/loongson/Kconfig
+++ b/arch/mips/loongson/Kconfig
@@ -59,6 +59,35 @@ config LEMOTE_MACH2F
These family machines include fuloong2f mini PC, yeeloong2f notebook,
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
config CS5536
@@ -86,8 +115,25 @@ config LOONGSON_UART_BASE
default y
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
bool
default n
+config LEFI_FIRMWARE_INTERFACE
+ bool
+
endif # MACH_LOONGSON
diff --git a/arch/mips/loongson/Platform b/arch/mips/loongson/Platform
index 29692e5433b1..6205372b6c2d 100644
--- a/arch/mips/loongson/Platform
+++ b/arch/mips/loongson/Platform
@@ -30,3 +30,4 @@ platform-$(CONFIG_MACH_LOONGSON) += loongson/
cflags-$(CONFIG_MACH_LOONGSON) += -I$(srctree)/arch/mips/include/asm/mach-loongson -mno-branch-likely
load-$(CONFIG_LEMOTE_FULOONG2E) += 0xffffffff80100000
load-$(CONFIG_LEMOTE_MACH2F) += 0xffffffff80200000
+load-$(CONFIG_CPU_LOONGSON3) += 0xffffffff80200000