ARC: Build system: Makefiles, Kconfig, Linker script
Arnd in his review pointed out that arch Kconfig organisation has several deficiencies: * Build time entries for things which can be runtime extracted from DT (e.g. SDRAM size, core clk frequency..) * Not multi-platform-image-build friendly (choice .. endchoice constructs) * cpu variants support (750/770) is exclusive. The first 2 have been fixed in subsequent patches. Due to the nature of the 750 and 770, it is not possible to build for both together, w/o special runtime glue code which would hurt performance. Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Sam Ravnborg <sam@ravnborg.org> Acked-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Vineet Gupta
parent
79a033c6b9
commit
cfdbc2e16e
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obj-y += kernel/
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obj-y += mm/
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@ -0,0 +1,328 @@
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#
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# Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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#
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config ARC
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def_bool y
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select ARCH_NO_VIRT_TO_BUS
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# ARC Busybox based initramfs absolutely relies on DEVTMPFS for /dev
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select DEVTMPFS if !INITRAMFS_SOURCE=""
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select GENERIC_ATOMIC64
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select GENERIC_CLOCKEVENTS
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select GENERIC_FIND_FIRST_BIT
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# for now, we don't need GENERIC_IRQ_PROBE, CONFIG_GENERIC_IRQ_CHIP
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select GENERIC_IRQ_SHOW
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select GENERIC_PENDING_IRQ if SMP
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select GENERIC_SMP_IDLE_THREAD
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select HAVE_GENERIC_HARDIRQS
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select MODULES_USE_ELF_RELA
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config SCHED_OMIT_FRAME_POINTER
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def_bool y
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config GENERIC_CSUM
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def_bool y
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config RWSEM_GENERIC_SPINLOCK
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def_bool y
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config ARCH_FLATMEM_ENABLE
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def_bool y
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config MMU
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def_bool y
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config NO_IOPORT
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def_bool y
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config GENERIC_CALIBRATE_DELAY
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def_bool y
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config GENERIC_HWEIGHT
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def_bool y
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config BINFMT_ELF
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def_bool y
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config HAVE_LATENCYTOP_SUPPORT
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def_bool y
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config NO_DMA
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def_bool n
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source "init/Kconfig"
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source "kernel/Kconfig.freezer"
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menu "ARC Architecture Configuration"
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choice
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prompt "ARC Platform"
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default ARC_PLAT_FPGA_LEGACY
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config ARC_PLAT_FPGA_LEGACY
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bool "\"Legacy\" ARC FPGA dev platform"
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help
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Support for ARC development platforms, provided by Synopsys.
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These are based on FPGA or ISS. e.g.
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- ARCAngel4
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- ML509
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- MetaWare ISS
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#New platform adds here
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endchoice
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menu "ARC CPU Configuration"
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choice
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prompt "ARC Core"
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default ARC_CPU_770
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config ARC_CPU_750D
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bool "ARC750D"
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help
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Support for ARC750 core
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config ARC_CPU_770
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bool "ARC770"
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select ARC_CPU_REL_4_10
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help
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Support for ARC770 core introduced with Rel 4.10 (Summer 2011)
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This core has a bunch of cool new features:
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-MMU-v3: Variable Page Sz (4k, 8k, 16k), bigger J-TLB (128x4)
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Shared Address Spaces (for sharing TLB entires in MMU)
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-Caches: New Prog Model, Region Flush
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-Insns: endian swap, load-locked/store-conditional, time-stamp-ctr
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endchoice
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config CPU_BIG_ENDIAN
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bool "Enable Big Endian Mode"
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default n
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help
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Build kernel for Big Endian Mode of ARC CPU
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menuconfig ARC_CACHE
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bool "Enable Cache Support"
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default y
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if ARC_CACHE
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config ARC_CACHE_LINE_SHIFT
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int "Cache Line Length (as power of 2)"
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range 5 7
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default "6"
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help
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Starting with ARC700 4.9, Cache line length is configurable,
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This option specifies "N", with Line-len = 2 power N
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So line lengths of 32, 64, 128 are specified by 5,6,7, respectively
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Linux only supports same line lengths for I and D caches.
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config ARC_HAS_ICACHE
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bool "Use Instruction Cache"
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default y
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config ARC_HAS_DCACHE
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bool "Use Data Cache"
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default y
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config ARC_CACHE_PAGES
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bool "Per Page Cache Control"
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default y
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depends on ARC_HAS_ICACHE || ARC_HAS_DCACHE
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help
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This can be used to over-ride the global I/D Cache Enable on a
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per-page basis (but only for pages accessed via MMU such as
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Kernel Virtual address or User Virtual Address)
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TLB entries have a per-page Cache Enable Bit.
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Note that Global I/D ENABLE + Per Page DISABLE works but corollary
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Global DISABLE + Per Page ENABLE won't work
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endif #ARC_CACHE
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config ARC_HAS_HW_MPY
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bool "Use Hardware Multiplier (Normal or Faster XMAC)"
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default y
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help
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Influences how gcc generates code for MPY operations.
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If enabled, MPYxx insns are generated, provided by Standard/XMAC
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Multipler. Otherwise software multipy lib is used
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choice
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prompt "ARC700 MMU Version"
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default ARC_MMU_V3 if ARC_CPU_770
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default ARC_MMU_V2 if ARC_CPU_750D
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config ARC_MMU_V1
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bool "MMU v1"
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help
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Orig ARC700 MMU
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config ARC_MMU_V2
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bool "MMU v2"
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help
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Fixed the deficiency of v1 - possible thrashing in memcpy sceanrio
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when 2 D-TLB and 1 I-TLB entries index into same 2way set.
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config ARC_MMU_V3
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bool "MMU v3"
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depends on ARC_CPU_770
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help
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Introduced with ARC700 4.10: New Features
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Variable Page size (1k-16k), var JTLB size 128 x (2 or 4)
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Shared Address Spaces (SASID)
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endchoice
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choice
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prompt "MMU Page Size"
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default ARC_PAGE_SIZE_8K
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config ARC_PAGE_SIZE_8K
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bool "8KB"
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help
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Choose between 8k vs 16k
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config ARC_PAGE_SIZE_16K
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bool "16KB"
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depends on ARC_MMU_V3
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config ARC_PAGE_SIZE_4K
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bool "4KB"
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depends on ARC_MMU_V3
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endchoice
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config ARC_FPU_SAVE_RESTORE
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bool "Enable FPU state persistence across context switch"
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default n
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help
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Double Precision Floating Point unit had dedictaed regs which
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need to be saved/restored across context-switch.
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Note that ARC FPU is overly simplistic, unlike say x86, which has
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hardware pieces to allow software to conditionally save/restore,
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based on actual usage of FPU by a task. Thus our implemn does
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this for all tasks in system.
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menuconfig ARC_CPU_REL_4_10
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bool "Enable support for Rel 4.10 features"
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default n
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help
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-ARC770 (and dependent features) enabled
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-ARC750 also shares some of the new features with 770
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config ARC_HAS_LLSC
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bool "Insn: LLOCK/SCOND (efficient atomic ops)"
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default y
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depends on ARC_CPU_770
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# if SMP, enable LLSC ONLY if ARC implementation has coherent atomics
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depends on !SMP || ARC_HAS_COH_LLSC
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config ARC_HAS_SWAPE
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bool "Insn: SWAPE (endian-swap)"
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default y
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depends on ARC_CPU_REL_4_10
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config ARC_HAS_RTSC
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bool "Insn: RTSC (64-bit r/o cycle counter)"
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default y
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depends on ARC_CPU_REL_4_10
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endmenu # "ARC CPU Configuration"
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menu "Platform Board Configuration"
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source "arch/arc/plat-arcfpga/Kconfig"
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#New platform adds here
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config ARC_PLAT_CLK
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int "Clk speed in Hz"
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default "80000000"
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config LINUX_LINK_BASE
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hex "Linux Link Address"
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default "0x80000000"
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help
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ARC700 divides the 32 bit phy address space into two equal halves
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-Lower 2G (0 - 0x7FFF_FFFF ) is user virtual, translated by MMU
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-Upper 2G (0x8000_0000 onwards) is untranslated, for kernel
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Typically Linux kernel is linked at the start of untransalted addr,
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hence the default value of 0x8zs.
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However some customers have peripherals mapped at this addr, so
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Linux needs to be scooted a bit.
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If you don't know what the above means, leave this setting alone.
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config ARC_PLAT_SDRAM_SIZE
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hex "SD RAM Size"
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default "0x10000000"
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help
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Implies the amount of SDRAM/DRAM Linux is going to claim/own.
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The actual memory itself could be larger than this number. But for
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all software purposes, this is the amt of memory.
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endmenu # "Platform Board Configuration"
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config ARC_STACK_NONEXEC
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bool "Make stack non-executable"
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default n
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help
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To disable the execute permissions of stack/heap of processes
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which are enabled by default.
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config HZ
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int "Timer Frequency"
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default 100
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menuconfig ARC_DBG
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bool "ARC debugging"
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default y
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config ARC_DBG_TLB_PARANOIA
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bool "Paranoia Checks in Low Level TLB Handlers"
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depends on ARC_DBG
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default n
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config ARC_DBG_TLB_MISS_COUNT
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bool "Profile TLB Misses"
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default n
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select DEBUG_FS
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depends on ARC_DBG
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help
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Counts number of I and D TLB Misses and exports them via Debugfs
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The counters can be cleared via Debugfs as well
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config CMDLINE
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string "Kernel command line to built-in"
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default "print-fatal-signals=1"
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help
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The default command line which will be appended to the optional
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u-boot provided command line (see below)
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config CMDLINE_UBOOT
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bool "Support U-boot kernel command line passing"
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default n
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help
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If you are using U-boot (www.denx.de) and wish to pass the kernel
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command line from the U-boot environment to the Linux kernel then
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switch this option on.
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ARC U-boot will setup the cmdline in RAM/flash and set r2 to point
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to it. kernel startup code will copy the string into cmdline buffer
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and also append CONFIG_CMDLINE.
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source "kernel/Kconfig.preempt"
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endmenu # "ARC Architecture Configuration"
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source "mm/Kconfig"
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source "net/Kconfig"
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source "drivers/Kconfig"
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source "fs/Kconfig"
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source "arch/arc/Kconfig.debug"
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source "security/Kconfig"
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source "crypto/Kconfig"
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source "lib/Kconfig"
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@ -0,0 +1,34 @@
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menu "Kernel hacking"
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source "lib/Kconfig.debug"
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config EARLY_PRINTK
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bool "Early printk" if EMBEDDED
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default y
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help
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Write kernel log output directly into the VGA buffer or to a serial
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port.
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This is useful for kernel debugging when your machine crashes very
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early before the console code is initialized. For normal operation
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it is not recommended because it looks ugly and doesn't cooperate
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with klogd/syslogd or the X server. You should normally N here,
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unless you want to debug such a crash.
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config DEBUG_STACKOVERFLOW
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bool "Check for stack overflows"
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depends on DEBUG_KERNEL
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help
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This option will cause messages to be printed if free stack space
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drops below a certain limit.
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config 16KSTACKS
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bool "Use 16Kb for kernel stacks instead of 8Kb"
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help
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If you say Y here the kernel will use a 16Kb stacksize for the
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kernel stack attached to each process/thread. The default is 8K.
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This increases the resident kernel footprint and will cause less
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threads to run on the system and also increase the pressure
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on the VM subsystem for higher order allocations.
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endmenu
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@ -0,0 +1,115 @@
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#
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# Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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#
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UTS_MACHINE := arc
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KBUILD_DEFCONFIG := fpga_defconfig
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# For ARC FPGA Platforms
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platform-$(CONFIG_ARC_PLAT_FPGA_LEGACY) := arcfpga
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#New platform adds here
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PLATFORM := $(platform-y)
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export PLATFORM
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cflags-y += -Iarch/arc/plat-$(PLATFORM)/include
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cflags-y += -mA7 -fno-common -pipe -fno-builtin -D__linux__
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atleast_gcc44 := $(call cc-ifversion, -gt, 0402, y)
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cflags-$(atleast_gcc44) += -fsection-anchors
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cflags-$(CONFIG_ARC_HAS_LLSC) += -mlock
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cflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape
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cflags-$(CONFIG_ARC_HAS_RTSC) += -mrtsc
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cflags-$(CONFIG_ARC_DW2_UNWIND) += -fasynchronous-unwind-tables
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ifndef CONFIG_CC_OPTIMIZE_FOR_SIZE
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# Generic build system uses -O2, we want -O3
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cflags-y += -O3
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endif
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# small data is default for elf32 tool-chain. If not usable, disable it
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# This also allows repurposing GP as scratch reg to gcc reg allocator
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disable_small_data := y
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cflags-$(disable_small_data) += -mno-sdata -fcall-used-gp
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cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mbig-endian
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ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
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# STAR 9000518362:
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# arc-linux-uclibc-ld (buildroot) or arceb-elf32-ld (EZChip) don't accept
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# --build-id w/o "-marclinux".
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# Default arc-elf32-ld is OK
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ldflags-y += -marclinux
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ARC_LIBGCC := -mA7
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cflags-$(CONFIG_ARC_HAS_HW_MPY) += -multcost=16
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ifndef CONFIG_ARC_HAS_HW_MPY
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cflags-y += -mno-mpy
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# newlib for ARC700 assumes MPY to be always present, which is generally true
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# However, if someone really doesn't want MPY, we need to use the 600 ver
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# which coupled with -mno-mpy will use mpy emulation
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# With gcc 4.4.7, -mno-mpy is enough to make any other related adjustments,
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# e.g. increased cost of MPY. With gcc 4.2.1 this had to be explicitly hinted
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ARC_LIBGCC := -marc600
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ifneq ($(atleast_gcc44),y)
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cflags-y += -multcost=30
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endif
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endif
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LIBGCC := $(shell $(CC) $(ARC_LIBGCC) $(cflags-y) --print-libgcc-file-name)
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# Modules with short calls might break for calls into builtin-kernel
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KBUILD_CFLAGS_MODULE += -mlong-calls
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# Finally dump eveything into kernel build system
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KBUILD_CFLAGS += $(cflags-y)
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KBUILD_AFLAGS += $(KBUILD_CFLAGS)
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LDFLAGS += $(ldflags-y)
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# Needed for Linker script preprocessing
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KBUILD_CPPFLAGS += -Iarch/arc/plat-$(PLATFORM)/include
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head-y := arch/arc/kernel/head.o
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# See arch/arc/Kbuild for content of core part of the kernel
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core-y += arch/arc/
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# w/o this ifneq, make ARCH=arc clean was crapping out
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ifneq ($(platform-y),)
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core-y += arch/arc/plat-$(PLATFORM)/
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endif
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libs-y += arch/arc/lib/ $(LIBGCC)
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#default target for make without any arguements.
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KBUILD_IMAGE := bootpImage
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all: $(KBUILD_IMAGE)
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boot := arch/arc/boot
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bootpImage: vmlinux
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uImage: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
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archclean:
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$(Q)$(MAKE) $(clean)=$(boot)
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# Hacks to enable final link due to absence of link-time branch relexation
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# and gcc choosing optimal(shorter) branches at -O3
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#
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# vineetg Feb 2010: -mlong-calls switched off for overall kernel build
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# However lib/decompress_inflate.o (.init.text) calls
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# zlib_inflate_workspacesize (.text) causing relocation errors.
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# Thus forcing all exten calls in this file to be long calls
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export CFLAGS_decompress_inflate.o = -mmedium-calls
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export CFLAGS_initramfs.o = -mmedium-calls
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@ -0,0 +1,26 @@
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targets := vmlinux.bin vmlinux.bin.gz uImage
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# uImage build relies on mkimage being availble on your host for ARC target
|
||||
# You will need to build u-boot for ARC, rename mkimage to arc-elf32-mkimage
|
||||
# and make sure it's reacable from your PATH
|
||||
MKIMAGE := $(srctree)/scripts/mkuboot.sh
|
||||
|
||||
OBJCOPYFLAGS= -O binary -R .note -R .note.gnu.build-id -R .comment -S
|
||||
|
||||
LINUX_START_TEXT = $$(readelf -h vmlinux | \
|
||||
grep "Entry point address" | grep -o 0x.*)
|
||||
|
||||
UIMAGE_LOADADDR = $(CONFIG_LINUX_LINK_BASE)
|
||||
UIMAGE_ENTRYADDR = $(LINUX_START_TEXT)
|
||||
UIMAGE_COMPRESSION = gzip
|
||||
|
||||
$(obj)/vmlinux.bin: vmlinux FORCE
|
||||
$(call if_changed,objcopy)
|
||||
|
||||
$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
|
||||
$(call if_changed,gzip)
|
||||
|
||||
$(obj)/uImage: $(obj)/vmlinux.bin.gz FORCE
|
||||
$(call if_changed,uimage)
|
||||
|
||||
PHONY += FORCE
|
||||
|
|
@ -33,6 +33,7 @@ generic-y += mman.h
|
|||
generic-y += msgbuf.h
|
||||
generic-y += param.h
|
||||
generic-y += parport.h
|
||||
generic-y += pci.h
|
||||
generic-y += percpu.h
|
||||
generic-y += poll.h
|
||||
generic-y += posix_types.h
|
||||
|
|
|
|||
|
|
@ -0,0 +1,16 @@
|
|||
#
|
||||
# Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License version 2 as
|
||||
# published by the Free Software Foundation.
|
||||
|
||||
obj-y := arcksyms.o setup.o irq.o time.o reset.o ptrace.o entry.o process.o
|
||||
obj-y += signal.o traps.o sys.o troubleshoot.o stacktrace.o clk.o
|
||||
|
||||
obj-$(CONFIG_ARC_FPU_SAVE_RESTORE) += fpu.o
|
||||
CFLAGS_fpu.o += -mdpfp
|
||||
|
||||
obj-y += ctx_sw_asm.o
|
||||
|
||||
extra-y := vmlinux.lds head.o
|
||||
|
|
@ -0,0 +1,56 @@
|
|||
/*
|
||||
* arcksyms.c - Exporting symbols not exportable from their own sources
|
||||
*
|
||||
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
|
||||
/* libgcc functions, not part of kernel sources */
|
||||
extern void __ashldi3(void);
|
||||
extern void __ashrdi3(void);
|
||||
extern void __divsi3(void);
|
||||
extern void __divsf3(void);
|
||||
extern void __lshrdi3(void);
|
||||
extern void __modsi3(void);
|
||||
extern void __muldi3(void);
|
||||
extern void __ucmpdi2(void);
|
||||
extern void __udivsi3(void);
|
||||
extern void __umodsi3(void);
|
||||
extern void __cmpdi2(void);
|
||||
extern void __fixunsdfsi(void);
|
||||
extern void __muldf3(void);
|
||||
extern void __divdf3(void);
|
||||
extern void __floatunsidf(void);
|
||||
extern void __floatunsisf(void);
|
||||
|
||||
EXPORT_SYMBOL(__ashldi3);
|
||||
EXPORT_SYMBOL(__ashrdi3);
|
||||
EXPORT_SYMBOL(__divsi3);
|
||||
EXPORT_SYMBOL(__divsf3);
|
||||
EXPORT_SYMBOL(__lshrdi3);
|
||||
EXPORT_SYMBOL(__modsi3);
|
||||
EXPORT_SYMBOL(__muldi3);
|
||||
EXPORT_SYMBOL(__ucmpdi2);
|
||||
EXPORT_SYMBOL(__udivsi3);
|
||||
EXPORT_SYMBOL(__umodsi3);
|
||||
EXPORT_SYMBOL(__cmpdi2);
|
||||
EXPORT_SYMBOL(__fixunsdfsi);
|
||||
EXPORT_SYMBOL(__muldf3);
|
||||
EXPORT_SYMBOL(__divdf3);
|
||||
EXPORT_SYMBOL(__floatunsidf);
|
||||
EXPORT_SYMBOL(__floatunsisf);
|
||||
|
||||
/* ARC optimised assembler routines */
|
||||
EXPORT_SYMBOL(memset);
|
||||
EXPORT_SYMBOL(memcpy);
|
||||
EXPORT_SYMBOL(memcmp);
|
||||
EXPORT_SYMBOL(strchr);
|
||||
EXPORT_SYMBOL(strcpy);
|
||||
EXPORT_SYMBOL(strcmp);
|
||||
EXPORT_SYMBOL(strlen);
|
||||
|
|
@ -0,0 +1,61 @@
|
|||
/*
|
||||
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <linux/sched.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/thread_info.h>
|
||||
#include <linux/kbuild.h>
|
||||
#include <asm/hardirq.h>
|
||||
#include <asm/page.h>
|
||||
#include <asm/ptrace.h>
|
||||
|
||||
int main(void)
|
||||
{
|
||||
DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
|
||||
DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, stack));
|
||||
|
||||
BLANK();
|
||||
|
||||
DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp));
|
||||
DEFINE(THREAD_CALLEE_REG, offsetof(struct thread_struct, callee_reg));
|
||||
DEFINE(THREAD_FAULT_ADDR,
|
||||
offsetof(struct thread_struct, fault_address));
|
||||
|
||||
BLANK();
|
||||
|
||||
DEFINE(THREAD_INFO_FLAGS, offsetof(struct thread_info, flags));
|
||||
DEFINE(THREAD_INFO_PREEMPT_COUNT,
|
||||
offsetof(struct thread_info, preempt_count));
|
||||
|
||||
BLANK();
|
||||
|
||||
DEFINE(TASK_ACT_MM, offsetof(struct task_struct, active_mm));
|
||||
DEFINE(TASK_TGID, offsetof(struct task_struct, tgid));
|
||||
|
||||
DEFINE(MM_CTXT, offsetof(struct mm_struct, context));
|
||||
DEFINE(MM_PGD, offsetof(struct mm_struct, pgd));
|
||||
|
||||
DEFINE(MM_CTXT_ASID, offsetof(mm_context_t, asid));
|
||||
|
||||
BLANK();
|
||||
|
||||
DEFINE(PT_status32, offsetof(struct pt_regs, status32));
|
||||
DEFINE(PT_orig_r8, offsetof(struct pt_regs, orig_r8));
|
||||
DEFINE(PT_sp, offsetof(struct pt_regs, sp));
|
||||
DEFINE(PT_r0, offsetof(struct pt_regs, r0));
|
||||
DEFINE(PT_r1, offsetof(struct pt_regs, r1));
|
||||
DEFINE(PT_r2, offsetof(struct pt_regs, r2));
|
||||
DEFINE(PT_r3, offsetof(struct pt_regs, r3));
|
||||
DEFINE(PT_r4, offsetof(struct pt_regs, r4));
|
||||
DEFINE(PT_r5, offsetof(struct pt_regs, r5));
|
||||
DEFINE(PT_r6, offsetof(struct pt_regs, r6));
|
||||
DEFINE(PT_r7, offsetof(struct pt_regs, r7));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,116 @@
|
|||
/*
|
||||
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <asm-generic/vmlinux.lds.h>
|
||||
#include <asm/cache.h>
|
||||
#include <asm/page.h>
|
||||
#include <asm/thread_info.h>
|
||||
#include <plat/memmap.h>
|
||||
|
||||
OUTPUT_ARCH(arc)
|
||||
ENTRY(_stext)
|
||||
|
||||
#ifdef CONFIG_CPU_BIG_ENDIAN
|
||||
jiffies = jiffies_64 + 4;
|
||||
#else
|
||||
jiffies = jiffies_64;
|
||||
#endif
|
||||
|
||||
SECTIONS
|
||||
{
|
||||
. = CONFIG_LINUX_LINK_BASE;
|
||||
|
||||
_int_vec_base_lds = .;
|
||||
.vector : {
|
||||
*(.vector)
|
||||
. = ALIGN(PAGE_SIZE);
|
||||
}
|
||||
|
||||
/*
|
||||
* The reason for having a seperate subsection .init.ramfs is to
|
||||
* prevent objump from including it in kernel dumps
|
||||
*
|
||||
* Reason for having .init.ramfs above .init is to make sure that the
|
||||
* binary blob is tucked away to one side, reducing the displacement
|
||||
* between .init.text and .text, avoiding any possible relocation
|
||||
* errors because of calls from .init.text to .text
|
||||
* Yes such calls do exist. e.g.
|
||||
* decompress_inflate.c:gunzip( ) -> zlib_inflate_workspace( )
|
||||
*/
|
||||
|
||||
__init_begin = .;
|
||||
|
||||
.init.ramfs : { INIT_RAM_FS }
|
||||
|
||||
. = ALIGN(PAGE_SIZE);
|
||||
_stext = .;
|
||||
|
||||
HEAD_TEXT_SECTION
|
||||
INIT_TEXT_SECTION(L1_CACHE_BYTES)
|
||||
|
||||
/* INIT_DATA_SECTION open-coded: special INIT_RAM_FS handling */
|
||||
.init.data : {
|
||||
INIT_DATA
|
||||
INIT_SETUP(L1_CACHE_BYTES)
|
||||
INIT_CALLS
|
||||
CON_INITCALL
|
||||
SECURITY_INITCALL
|
||||
}
|
||||
|
||||
PERCPU_SECTION(L1_CACHE_BYTES)
|
||||
|
||||
/*
|
||||
* .exit.text is discard at runtime, not link time, to deal with
|
||||
* references from .debug_frame
|
||||
* It will be init freed, being inside [__init_start : __init_end]
|
||||
*/
|
||||
.exit.text : { EXIT_TEXT }
|
||||
.exit.data : { EXIT_DATA }
|
||||
|
||||
. = ALIGN(PAGE_SIZE);
|
||||
__init_end = .;
|
||||
|
||||
.text : {
|
||||
_text = .;
|
||||
TEXT_TEXT
|
||||
SCHED_TEXT
|
||||
LOCK_TEXT
|
||||
KPROBES_TEXT
|
||||
*(.fixup)
|
||||
*(.gnu.warning)
|
||||
}
|
||||
EXCEPTION_TABLE(L1_CACHE_BYTES)
|
||||
_etext = .;
|
||||
|
||||
_sdata = .;
|
||||
RO_DATA_SECTION(PAGE_SIZE)
|
||||
|
||||
/*
|
||||
* 1. this is .data essentially
|
||||
* 2. THREAD_SIZE for init.task, must be kernel-stk sz aligned
|
||||
*/
|
||||
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
|
||||
|
||||
_edata = .;
|
||||
|
||||
BSS_SECTION(0, 0, 0)
|
||||
|
||||
NOTES
|
||||
|
||||
. = ALIGN(PAGE_SIZE);
|
||||
_end = . ;
|
||||
|
||||
STABS_DEBUG
|
||||
DWARF_DEBUG
|
||||
DISCARDS
|
||||
|
||||
.arcextmap 0 : {
|
||||
*(.gnu.linkonce.arcextmap.*)
|
||||
*(.arcextmap.*)
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
#
|
||||
# Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License version 2 as
|
||||
# published by the Free Software Foundation.
|
||||
|
||||
lib-y := strchr-700.o strcmp.o strcpy-700.o strlen.o
|
||||
lib-y += memcmp.o memcpy-700.o memset.o
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
#
|
||||
# Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License version 2 as
|
||||
# published by the Free Software Foundation.
|
||||
#
|
||||
|
||||
obj-y := extable.o ioremap.o dma.o fault.o init.o
|
||||
obj-y += tlb.o tlbex.o cache_arc700.o
|
||||
|
|
@ -0,0 +1,33 @@
|
|||
#
|
||||
# Copyright (C) 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License version 2 as
|
||||
# published by the Free Software Foundation.
|
||||
#
|
||||
|
||||
if ARC_PLAT_FPGA_LEGACY
|
||||
|
||||
choice
|
||||
prompt "FPGA Board"
|
||||
|
||||
config ARC_BOARD_ANGEL4
|
||||
bool "ARC Angel4"
|
||||
help
|
||||
ARC Angel4 FPGA Ref Platform (Xilinx Virtex Based)
|
||||
|
||||
config ARC_BOARD_ML509
|
||||
bool "ML509"
|
||||
help
|
||||
ARC ML509 FPGA Ref Platform (Xilinx Virtex-5 Based)
|
||||
|
||||
endchoice
|
||||
|
||||
config ARC_SERIAL_BAUD
|
||||
int "UART Baud rate"
|
||||
default "115200"
|
||||
depends on SERIAL_ARC || SERIAL_ARC_CONSOLE
|
||||
help
|
||||
Baud rate for the ARC UART
|
||||
|
||||
endif
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
#
|
||||
# Copyright (C) 2011-2012 Synopsys, Inc. (www.synopsys.com)
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License version 2 as
|
||||
# published by the Free Software Foundation.
|
||||
#
|
||||
|
||||
obj-y := platform.o irq.o
|
||||
Loading…
Reference in New Issue