linux.git/arch/loongarch/boot, branch master Linux kernel source tree LoongArch: Adjust build infrastructure for 32BIT/64BIT 2026-04-22T07:44:26+00:00 Huacai Chen chenhuacai@loongson.cn 2026-04-22T07:44:26+00:00 3d9aba6618d115750729bba2d1f8af180bd7d3bd Adjust build infrastructure (Kconfig, Makefile and ld scripts) to let us enable both 32BIT/64BIT kernel build. Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> 
Adjust build infrastructure (Kconfig, Makefile and ld scripts) to let
us enable both 32BIT/64BIT kernel build.

Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
LoongArch: dts: loongson-2k1000: Add nand controller support 2026-02-10T11:31:33+00:00 Binbin Zhou zhoubinbin@loongson.cn 2026-02-10T11:31:33+00:00 92860256402cce9fa6268763365f5333a56c1428 The module is supported, enable it. Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> 
The module is supported, enable it.

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
LoongArch: dts: loongson-2k0500: Add nand controller support 2026-02-10T11:31:21+00:00 Binbin Zhou zhoubinbin@loongson.cn 2026-02-10T11:31:21+00:00 4fd5ca0f2c626f59f131c62df1dba9ccf39f074d The module is supported, enable it. Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> 
The module is supported, enable it.

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
LoongArch: dts: loongson-2k1000: Fix i2c-gpio node names 2026-01-17T02:56:53+00:00 Binbin Zhou zhoubinbin@loongson.cn 2026-01-17T02:56:53+00:00 14ea5a3625881d79f75418c66e3a7d98db8518e1 The binding wants the node to be named "i2c-number", but those are named "i2c-gpio-number" instead. Thus rename those to i2c-0, i2c-1 to adhere to the binding and suppress dtbs_check warnings. Cc: stable@vger.kernel.org Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> 
The binding wants the node to be named "i2c-number", but those are named
"i2c-gpio-number" instead.

Thus rename those to i2c-0, i2c-1 to adhere to the binding and suppress
dtbs_check warnings.

Cc: stable@vger.kernel.org
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
LoongArch: dts: loongson-2k2000: Add default interrupt controller address cells 2026-01-17T02:56:53+00:00 Binbin Zhou zhoubinbin@loongson.cn 2026-01-17T02:56:53+00:00 e65df3f77ecd59d3a8647d19df82b22a6ce210a9 Add missing address-cells 0 to the Local I/O, Extend I/O and PCH-PIC Interrupt Controller node to silence W=1 warning: loongson-2k2000.dtsi:364.5-49: Warning (interrupt_map): /bus@10000000/pcie@1a000000/pcie@9,0:interrupt-map: Missing property '#address-cells' in node /bus@10000000/interrupt-controller@10000000, using 0 as fallback Value '0' is correct because: 1. The LIO/EIO/PCH interrupt controller does not have children, 2. interrupt-map property (in PCI node) consists of five components and the fourth component "parent unit address", which size is defined by '#address-cells' of the node pointed to by the interrupt-parent component, is not used (=0) Cc: stable@vger.kernel.org Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> 
Add missing address-cells 0 to the Local I/O, Extend I/O and PCH-PIC
Interrupt Controller node to silence W=1 warning:

  loongson-2k2000.dtsi:364.5-49: Warning (interrupt_map): /bus@10000000/pcie@1a000000/pcie@9,0:interrupt-map:
    Missing property '#address-cells' in node /bus@10000000/interrupt-controller@10000000, using 0 as fallback

Value '0' is correct because:
1. The LIO/EIO/PCH interrupt controller does not have children,
2. interrupt-map property (in PCI node) consists of five components and
   the fourth component "parent unit address", which size is defined by
   '#address-cells' of the node pointed to by the interrupt-parent
   component, is not used (=0)

Cc: stable@vger.kernel.org
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
LoongArch: dts: loongson-2k1000: Add default interrupt controller address cells 2026-01-17T02:56:53+00:00 Binbin Zhou zhoubinbin@loongson.cn 2026-01-17T02:56:53+00:00 81e8cb7e504a5adbcc48f7f954bf3c2aa9b417f8 Add missing address-cells 0 to the Local I/O interrupt controller node to silence W=1 warning: loongson-2k1000.dtsi:498.5-55: Warning (interrupt_map): /bus@10000000/pcie@1a000000/pcie@9,0:interrupt-map: Missing property '#address-cells' in node /bus@10000000/interrupt-controller@1fe01440, using 0 as fallback Value '0' is correct because: 1. The Local I/O interrupt controller does not have children, 2. interrupt-map property (in PCI node) consists of five components and the fourth component "parent unit address", which size is defined by '#address-cells' of the node pointed to by the interrupt-parent component, is not used (=0) Cc: stable@vger.kernel.org Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> 
Add missing address-cells 0 to the Local I/O interrupt controller node
to silence W=1 warning:

  loongson-2k1000.dtsi:498.5-55: Warning (interrupt_map): /bus@10000000/pcie@1a000000/pcie@9,0:interrupt-map:
    Missing property '#address-cells' in node /bus@10000000/interrupt-controller@1fe01440, using 0 as fallback

Value '0' is correct because:
1. The Local I/O interrupt controller does not have children,
2. interrupt-map property (in PCI node) consists of five components and
   the fourth component "parent unit address", which size is defined by
   '#address-cells' of the node pointed to by the interrupt-parent
   component, is not used (=0)

Cc: stable@vger.kernel.org
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
LoongArch: dts: loongson-2k0500: Add default interrupt controller address cells 2026-01-17T02:56:52+00:00 Binbin Zhou zhoubinbin@loongson.cn 2026-01-17T02:56:52+00:00 c4461754e6fe7e12a3ff198cce4707e3e20e43d4 Add missing address-cells 0 to the Local I/O and Extend I/O interrupt controller node to silence W=1 warning: loongson-2k0500.dtsi:513.5-51: Warning (interrupt_map): /bus@10000000/pcie@1a000000/pcie@0,0:interrupt-map: Missing property '#address-cells' in node /bus@10000000/interrupt-controller@1fe11600, using 0 as fallback Value '0' is correct because: 1. The Local I/O & Extend I/O interrupt controller do not have children, 2. interrupt-map property (in PCI node) consists of five components and the fourth component "parent unit address", which size is defined by '#address-cells' of the node pointed to by the interrupt-parent component, is not used (=0) Cc: stable@vger.kernel.org Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> 
Add missing address-cells 0 to the Local I/O and Extend I/O interrupt
controller node to silence W=1 warning:

  loongson-2k0500.dtsi:513.5-51: Warning (interrupt_map): /bus@10000000/pcie@1a000000/pcie@0,0:interrupt-map:
    Missing property '#address-cells' in node /bus@10000000/interrupt-controller@1fe11600, using 0 as fallback

Value '0' is correct because:
1. The Local I/O & Extend I/O interrupt controller do not have children,
2. interrupt-map property (in PCI node) consists of five components and
   the fourth component "parent unit address", which size is defined by
   '#address-cells' of the node pointed to by the interrupt-parent
   component, is not used (=0)

Cc: stable@vger.kernel.org
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
LoongArch: dts: Describe PCI sideband IRQ through interrupt-extended 2026-01-17T02:56:52+00:00 Yao Zi me@ziyao.cc 2026-01-17T02:56:52+00:00 762cf75bec2ad9d17899087899a34336b1757238 SoC integrated peripherals on LS2K1000 and LS2K2000 could be discovered as PCI devices, but require sideband interrupts to function, which are previously described by interrupts and interrupt-parent properties. However, pci/pci-device.yaml allows interrupts property to only specify PCI INTx interrupts, not sideband ones. Convert these devices to use interrupt-extended property, which describes sideband interrupts used by PCI devices since dt-schema commit e6ea659d2baa ("schemas: pci-device: Allow interrupts-extended for sideband interrupts"), eliminating dtbs_check warnings. Cc: stable@vger.kernel.org Fixes: 30a5532a3206 ("LoongArch: dts: DeviceTree for Loongson-2K1000") Signed-off-by: Yao Zi <me@ziyao.cc> Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> 
SoC integrated peripherals on LS2K1000 and LS2K2000 could be discovered
as PCI devices, but require sideband interrupts to function, which are
previously described by interrupts and interrupt-parent properties.

However, pci/pci-device.yaml allows interrupts property to only specify
PCI INTx interrupts, not sideband ones. Convert these devices to use
interrupt-extended property, which describes sideband interrupts used by
PCI devices since dt-schema commit e6ea659d2baa ("schemas: pci-device:
Allow interrupts-extended for sideband interrupts"), eliminating
dtbs_check warnings.

Cc: stable@vger.kernel.org
Fixes: 30a5532a3206 ("LoongArch: dts: DeviceTree for Loongson-2K1000")
Signed-off-by: Yao Zi <me@ziyao.cc>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
LoongArch: dts: Add uart new compatible string 2025-11-26T12:15:17+00:00 Binbin Zhou zhoubinbin@loongson.cn 2025-10-11T07:16:49+00:00 13532b5186a7aa4dfd9885355c6af7562b75dd7f Add loongson,ls2k*-uart compatible string on uarts. Co-developed-by: Haowei Zheng <zhenghaowei@loongson.cn> Signed-off-by: Haowei Zheng <zhenghaowei@loongson.cn> Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Reviewed-by: Huacai Chen <chenhuacai@loongson.cn> Link: https://patch.msgid.link/8e0c08459fa5bddefd898648fea28a9f2fde701a.1760166651.git.zhoubinbin@loongson.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Add loongson,ls2k*-uart compatible string on uarts.

Co-developed-by: Haowei Zheng <zhenghaowei@loongson.cn>
Signed-off-by: Haowei Zheng <zhenghaowei@loongson.cn>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Link: https://patch.msgid.link/8e0c08459fa5bddefd898648fea28a9f2fde701a.1760166651.git.zhoubinbin@loongson.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
LoongArch: dts: Add eMMC/SDIO controller support to Loongson-2K2000 2025-08-05T11:00:22+00:00 Binbin Zhou zhoubinbin@loongson.cn 2025-08-05T11:00:22+00:00 d3eece04f3021a782f02fb435c32142d130d5585 The Loongson-2K2000 integrates one eMMC controller and one SDIO controller. The module is supported now, enable it. Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> 
The Loongson-2K2000 integrates one eMMC controller and one SDIO controller.

The module is supported now, enable it.

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>