linux-mips
[Top] [All Lists]

[PATCH V15 09/12] MIPS: Loongson: Add Loongson-3 Kconfig options

To: Ralf Baechle <ralf@linux-mips.org>
Subject: [PATCH V15 09/12] MIPS: Loongson: Add Loongson-3 Kconfig options
From: Huacai Chen <chenhc@lemote.com>
Date: Sun, 15 Dec 2013 20:14:33 +0800
Cc: John Crispin <john@phrozen.org>, "Steven J. Hill" <Steven.Hill@imgtec.com>, linux-mips@linux-mips.org, Fuxin Zhang <zhangfx@lemote.com>, Zhangjin Wu <wuzhangjin@gmail.com>, Huacai Chen <chenhc@lemote.com>, Hongliang Tao <taohl@lemote.com>, Hua Yan <yanh@lemote.com>
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=2lsyoCNVlc/aC2eNvC9NFNG3LWEYyaIKIGsN/f1UfX0=; b=OXaqX6AH0JBvu4ffTMuFF9TWvRAzrxkA2JaZr9WNpgf3tdfmiWHkniehli/dUIvip2 +aceUhd7ecWXKnwqrdap8WvI7BcwHcAreFs/oK/t9akgiprH+pWrjX9X3lFDaXq7++ui ZhOCcoOUbVUGpQrEJL485rNA1m8V35zD+SsLkQ3yuK/eOTztlQIJyFYIxP765djwHMaT 5rNc1xtEQpDu58t8T5jOcR/5K6nuqARw/X6tSYPHX1jkt0V/44iJOzjaKK7QD9XZwYOQ so8KYnu1LNMXnSZywNi6z0R74+XBb07grp+g7mLM7TegYA0cfmvOPz7xTxIKYhP/EhP+ kljA==
In-reply-to: <1387109676-540-1-git-send-email-chenhc@lemote.com>
List-archive: <http://www.linux-mips.org/archives/linux-mips/>
List-help: <mailto:ecartis@linux-mips.org?Subject=help>
List-id: linux-mips <linux-mips.eddie.linux-mips.org>
List-owner: <mailto:ralf@linux-mips.org>
List-post: <mailto:linux-mips@linux-mips.org>
List-software: Ecartis version 1.0.0
List-subscribe: <mailto:ecartis@linux-mips.org?subject=subscribe%20linux-mips>
List-unsubscribe: <mailto:ecartis@linux-mips.org?subject=unsubscribe%20linux-mips>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <1387109676-540-1-git-send-email-chenhc@lemote.com>
Sender: linux-mips-bounce@linux-mips.org
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@lemote.com>
Signed-off-by: Hongliang Tao <taohl@lemote.com>
Signed-off-by: Hua Yan <yanh@lemote.com>
---
 arch/mips/Kconfig           |   29 ++++++++++++++++++++++++++++
 arch/mips/loongson/Kconfig  |   44 +++++++++++++++++++++++++++++++++++++++++++
 arch/mips/loongson/Platform |    1 +
 3 files changed, 74 insertions(+), 0 deletions(-)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 17cc7ff..2c447a7 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1487,6 +1487,19 @@ config CPU_LOONGSON2
        select CPU_SUPPORTS_HIGHMEM
        select CPU_SUPPORTS_HUGEPAGES
 
+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 CPU_SUPPORTS_HUGEPAGES
+       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
@@ -1513,6 +1526,11 @@ 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
 
@@ -1647,6 +1665,8 @@ 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 && !CPU_XLP
@@ -2373,6 +2393,15 @@ 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..91fa7cf 100644
--- a/arch/mips/loongson/Kconfig
+++ b/arch/mips/loongson/Kconfig
@@ -59,6 +59,34 @@ 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 ZONE_DMA32 if 64BIT
+       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 +114,24 @@ 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 Big Memory (>4GB)"
+       depends on CPU_LOONGSON3
+       select IOMMU_HELPER
+       select NEED_SG_DMA_LENGTH
+       select NEED_DMA_MAP_STATE
+
 config LOONGSON_MC146818
        bool
        default n
 
+config UEFI_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


<Prev in Thread] Current Thread [Next in Thread>