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Currently, code of Loongson-2/3 is under loongson directory and code of
Loongson-1 is under loongson1 directory. Besides, there are Kconfig
options such as MACH_LOONGSON and MACH_LOONGSON1. This naming style is
very ugly and confusing. Since Loongson-2/3 are both 64-bit general-
purpose CPU while Loongson-1 is 32-bit SoC, we rename both file names
and Kconfig symbols from loongson/loongson1 to loongson64/loongson32.
[[email protected]: Resolve a number of simple conflicts.]
Signed-off-by: Huacai Chen <[email protected]>
Cc: Steven J. Hill <[email protected]>
Cc: [email protected]
Cc: Fuxin Zhang <[email protected]>
Cc: Zhangjin Wu <[email protected]>
Cc: Kelvin Cheung <[email protected]>
Patchwork: https://patchwork.linux-mips.org/patch/9790/
Signed-off-by: Ralf Baechle <[email protected]>
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The new UEFI-like firmware interface (LEFI, i.e. Loongson Unified
Firmware Interface) has 3 advantages:
1, Firmware export a physical memory map which is similar to X86's
E820 map, so prom_init_memory() will be more elegant that #ifdef
clauses can be removed.
2, Firmware export a pci irq routing table, we no longer need pci
irq routing fixup in kernel's code.
3, Firmware has a built-in vga bios, and its address is exported,
the linux kernel no longer need an embedded blob.
With the LEFI interface, Loongson-3A/2G and all their successors can use
a unified kernel. All Loongson-based machines support this new interface
except 2E/2F series.
Signed-off-by: Huacai Chen <[email protected]>
Signed-off-by: Hongliang Tao <[email protected]>
Signed-off-by: Hua Yan <[email protected]>
Tested-by: Alex Smith <[email protected]>
Reviewed-by: Alex Smith <[email protected]>
Cc: John Crispin <[email protected]>
Cc: Steven J. Hill <[email protected]>
Cc: Aurelien Jarno <[email protected]>
Cc: [email protected]
Cc: Fuxin Zhang <[email protected]>
Cc: Zhangjin Wu <[email protected]>
Patchwork: https://patchwork.linux-mips.org/patch/6632
Signed-off-by: Ralf Baechle <[email protected]>
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Signed-off-by: Ralf Baechle <[email protected]>
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Having received another series of whitespace patches I decided to do this
once and for all rather than dealing with this kind of patches trickling
in forever.
Signed-off-by: Ralf Baechle <[email protected]>
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The -mfix-loongson2f-jump option provided by latest CVS binutils have fixed
the out-of-order issue of Loongson-2F described in chapter 15 of the
Loongson2F User Manual [1, 2], but introduced some problems.
The option changes all of the jump target to "addr & 0xcfffffff" through the
at($1) register, but for the reboot address of Loongson 2F 0xbfc00000 this is
wrong. Avoids the problem via telling the assembler to not use the $at
register.
[1] Loongson2F User Manual (Chinese Version)
http://www.loongson.cn/uploadfile/file/200808211
[2] English Version of Chapter 15:
http://groups.google.com.hk/group/loongson-dev/msg/e0d2e220958f10a6?dmode=source
Reported-and-tested-by: Liu Shiwei <[email protected]>
Signed-off-by: Wu Zhangjin <[email protected]>
Cc: linux-mips <[email protected]>
Patchwork: http://patchwork.linux-mips.org/patch/1109/
Signed-off-by: Ralf Baechle <[email protected]>
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In the old source code, I have let halt and poweroff do the same action,
but in reality, they have different meanings.
As the manpage of shutdown shows:
-r Reboot after shutdown.
-H Halt action is to halt or drop into boot monitor on systems that support it.
-P Halt action is to turn off the power.
and in the real world, some machines(e.g. NAS) did not provide a power
button and the shutdown works as reset, so, we need to provide a
mechanism to let the users turn off the power safely without breaking
the system, such a mechanism is "halt", which only put the system into a
dead loop or a power-save mode and print some information to the screen
to tell the users to turn off the power safely.
$ shutdown -hH now /* loongson_halt, not turn off the power */
$ shutdown -hP now /* loongson_poweroff, work as poweroff */
Signed-off-by: Wu Zhangjin <[email protected]>
Tested-by: Liu Shiwei <[email protected]>
Cc: Liu Shiwei <[email protected]>
Cc: linux-mips <[email protected]>
Patchwork: http://patchwork.linux-mips.org/patch/883/
Signed-off-by: Ralf Baechle <[email protected]>
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Currently [email protected] is not usable; change it to [email protected].
Signed-off-by: Wu Zhangjin <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Patchwork: http://patchwork.linux-mips.org/patch/829/
Signed-off-by: Ralf Baechle <[email protected]>
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Use the new unreachable() macro instead of while(1);
Signed-off-by: Wu Zhangjin <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Patchwork: http://patchwork.linux-mips.org/patch/823/
Signed-off-by: Ralf Baechle <[email protected]>
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The built-in Loongson 2E/2F northbridge in is bonito64-compatible but not
identical with it. To avoid influencing the original bonito64 support and
make the loongson support more maintainable, it's better to separate the
Bonito64 code from the Loongson code.
This also prepares the kernel for the coming Loongson 2f machines family
support.
Signed-off-by: Wu Zhangjin <[email protected]>
Cc: Linux-MIPS <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: Zhang Le <[email protected]>
Cc: [email protected],
Signed-off-by: Ralf Baechle <[email protected]>
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To share common loongson source code between all of the loongson-based
machines. there is a need to split it out of the fuloong-2e/ directory.
at the same time, other according tuning is needed. the machine-specific
parts are defined as macros in relative header file, pci.h, mem.h,
machine.h.
Signed-off-by: Wu Zhangjin <[email protected]>
Signed-off-by: Ralf Baechle <[email protected]>
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