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@xxxxxxxxxx> Signed-off-by: Hongliang Tao <taohl@xxxxxxxxxx> Signed-off-by: Hua Yan <yanh@xxxxxxxxxx> Tested-by: Alex Smith <alex.smith@xxxxxxxxxx> Reviewed-by: Alex Smith <alex.smith@xxxxxxxxxx> --- arch/mips/Kconfig | 29 ++++++++++++++++++++++++++- arch/mips/loongson/Kconfig | 46 +++++++++++++++++++++++++++++++++++++++++++ arch/mips/loongson/Platform | 1 + 3 files changed, 75 insertions(+), 1 deletions(-) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index be78fedf..b6c44ce 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 @@ -2499,6 +2515,17 @@ 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 263beb9..a5d46f5 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 29692e5..6205372 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 -- 1.7.7.3
