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Message-Id: <1352709169-3481-11-git-send-email-chenhc@lemote.com> Date: Mon, 12 Nov 2012 16:32:46 +0800 From: Huacai Chen <chenhc@...ote.com> To: Ralf Baechle <ralf@...ux-mips.org> Cc: linux-mips@...ux-mips.org, linux-kernel@...r.kernel.org, Fuxin Zhang <zhangfx@...ote.com>, Zhangjin Wu <wuzhangjin@...il.com>, Huacai Chen <chenhc@...ote.com>, Hongliang Tao <taohl@...ote.com>, Hua Yan <yanh@...ote.com> Subject: [PATCH V8 10/13] MIPS: Loongson: Add Loongson-3 Kconfig options Added Kconfig options include: Loongson-3 CPU and machine definition, CPU cache features, UEFI-like firmware interface, HT-linked PCI, and big memory support. Signed-off-by: Huacai Chen <chenhc@...ote.com> Signed-off-by: Hongliang Tao <taohl@...ote.com> Signed-off-by: Hua Yan <yanh@...ote.com> --- arch/mips/Kconfig | 28 +++++++++++++++++++++++ arch/mips/loongson/Kconfig | 52 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 80 insertions(+), 0 deletions(-) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index dba9390..2606c89 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1590,6 +1590,18 @@ config CPU_LOONGSON2 select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM +config CPU_LOONGSON3 + bool "Loongson 3 CPU" + depends on SYS_HAS_CPU_LOONGSON3 + select CPU_SUPPORTS_32BIT_KERNEL + select CPU_SUPPORTS_64BIT_KERNEL + select CPU_SUPPORTS_HIGHMEM + select WEAK_ORDERING + select WEAK_REORDERING_BEYOND_LLSC + help + The Loongson 3 processor implements the MIPS III instruction set + with many extensions. + config CPU_LOONGSON1 bool select CPU_MIPS32 @@ -1616,6 +1628,11 @@ config SYS_HAS_CPU_LOONGSON2F select CPU_SUPPORTS_ADDRWINCFG if 64BIT select CPU_SUPPORTS_UNCACHED_ACCELERATED +config SYS_HAS_CPU_LOONGSON3 + bool + select CPU_SUPPORTS_CPUFREQ + select CPU_SUPPORTS_COHERENT_CACHE + config SYS_HAS_CPU_LOONGSON1B bool @@ -1753,6 +1770,8 @@ config CPU_SUPPORTS_HUGEPAGES bool config CPU_SUPPORTS_UNCACHED_ACCELERATED bool +config CPU_SUPPORTS_COHERENT_CACHE + bool config MIPS_PGD_C0_CONTEXT bool default y if 64BIT && CPU_MIPSR2 @@ -2420,6 +2439,15 @@ 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" + 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 unless you are using Loongson 2E/2F based + machines. + config PCI_DOMAINS bool diff --git a/arch/mips/loongson/Kconfig b/arch/mips/loongson/Kconfig index 263beb9..dd951b8 100644 --- a/arch/mips/loongson/Kconfig +++ b/arch/mips/loongson/Kconfig @@ -59,6 +59,33 @@ 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 I8259 + select IRQ_CPU + select SYS_HAS_CPU_LOONGSON3 + select SYS_HAS_EARLY_PRINTK + select SYS_SUPPORTS_SMP + select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_64BIT_KERNEL + select SYS_SUPPORTS_HIGHMEM + select SYS_SUPPORTS_LITTLE_ENDIAN + select LOONGSON_MC146818 + select UEFI_FIRMWARE_INTERFACE + help + Lemote Loongson 3A family machines utilize the 3A revision of + Loongson processor and RS780/SBX00 chipset. endchoice config CS5536 @@ -86,8 +113,33 @@ config LOONGSON_UART_BASE default y depends on EARLY_PRINTK || SERIAL_8250 +config LOONGSON_BIGMEM + bool "Soft IOMMU Support for Big Memory (>4GB)" + depends on CPU_LOONGSON3 + select SWIOTLB + select ZONE_DMA32 + +config IOMMU_HELPER + bool + +config NEED_SG_DMA_LENGTH + bool + +config SWIOTLB + bool + select IOMMU_HELPER + select NEED_SG_DMA_LENGTH + select NEED_DMA_MAP_STATE + config LOONGSON_MC146818 bool default n +config ARCH_SPARSEMEM_ENABLE + bool + select SPARSEMEM_STATIC + +config UEFI_FIRMWARE_INTERFACE + bool + endif # MACH_LOONGSON -- 1.7.7.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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