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Re: [PATCH 00/14] MIPS: Add Loongson-3 based machines support.

To: Huacai Chen <>
Subject: Re: [PATCH 00/14] MIPS: Add Loongson-3 based machines support.
From: LIU Qi <>
Date: Fri, 15 Jun 2012 21:10:23 +0800
Cc: Ralf Baechle <>,, Fuxin Zhang <>, Zhangjin Wu <>, Huacai Chen <>, Hongliang Tao <>, Hua Yan <>
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User-agent: Mutt/1.5.21 (2010-09-15)
On Fri, Jun 15, 2012 at 04:09:47PM +0800, Huacai Chen wrote:
 > This patchset is for git repository git://
 > ralf/linux. Loongson-3 is a multi-core MIPS family CPU, it is MIPS64R2
 > compatible and has the same IMP field (0x6300) as Loongson-2. These
 > patches make Linux kernel support Loongson-3 CPU and Loongson-3 based
 > computers (including Laptop, Mini-ITX, All-In-One PC, etc.)
 > Huacai Chen(14):
 >  MIPS: Loongson: Add basic Loongson 3 CPU support.
 >  MIPS: Loongson 3: Add Lemote-3A machtypes definition.
 >  MIPS: Loongson: Make Loongson 3 to use BCD format for RTC.
 >  MIPS: Loongson: Add UEFI-like firmware interface support.
 >  MIPS: Loongson 3: Add HT-linked PCI support.
 >  MIPS: Loongson 3: Add IRQ init and dispatch support.
 >  MIPS: Loongson 3: Add serial port support.
 >  MIPS: Loongson: Add swiotlb to support big memory (>4GB).
 >  ata: Use 32bit DMA in AHCI for Loongson 3.
 >  drm/radeon: Make radeon card usable for Loongson.
 >  ALSA: Make hda sound card usable for Loongson.
 >  MIPS: Loongson 3: Add Loongson-3 SMP support.
 >  MIPS: Loongson 3: Add CPU Hotplug support.
 >  MIPS: Loongson: Add a Loongson 3 default config file.
 > Signed-off-by: Huacai Chen <>
 > Signed-off-by: Hongliang Tao <>
 > Signed-off-by: Hua Yan <>

The compiled kernel with your patches just doesn't boot. I tested with
the Loongson3 laptop and mini-itx. Do they need the newer PMON version
with UEFI-like interface support to boot the system?


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