[PATCH v2] MIPS: config: Add EcoNet EN751221 defconfig

[PATCH v2] MIPS: config: Add EcoNet EN751221 defconfig

[Caleb James DeLisle]

Add config based on OpenWrt for EN751221 boards.
Of note: EcoNet bootloader has a 7.2MB kernel size limit so
ZBOOT is assumed to be needed in all cases.

Signed-off-by: Caleb James DeLisle <cjd@cjdns.fr>
---
Updated to work after SERIAL_8250 and SERIAL_OF_PLATFORM removed
from Kconfig.
Link: https://lore.kernel.org/linux-mips/20260815235109.666268-1-julianbraha@gmail.com/
---
 MAINTAINERS                                 |   1 +
 arch/mips/configs/econet_en751221_defconfig | 264 ++++++++++++++++++++
 2 files changed, 265 insertions(+)
 create mode 100644 arch/mips/configs/econet_en751221_defconfig

diff --git a/MAINTAINERS b/MAINTAINERS
index 806bd2d80d15..9e2a6dc48f62 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9245,6 +9245,7 @@ F:	Documentation/devicetree/bindings/interrupt-controller/econet,en751221-intc.y
 F:	Documentation/devicetree/bindings/mips/econet.yaml
 F:	Documentation/devicetree/bindings/timer/econet,en751221-timer.yaml
 F:	arch/mips/boot/dts/econet/
+F:	arch/mips/configs/econet_en751221_defconfig
 F:	arch/mips/econet/
 F:	drivers/clocksource/timer-econet-en751221.c
 F:	drivers/irqchip/irq-econet-en751221.c
diff --git a/arch/mips/configs/econet_en751221_defconfig b/arch/mips/configs/econet_en751221_defconfig
new file mode 100644
index 000000000000..b35d33fe4044
--- /dev/null
+++ b/arch/mips/configs/econet_en751221_defconfig
@@ -0,0 +1,264 @@
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_KERNEL_XZ=y
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+# CONFIG_CROSS_MEMORY_ATTACH is not set
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BPF_SYSCALL=y
+CONFIG_BPF_JIT=y
+CONFIG_PREEMPT=y
+CONFIG_CGROUPS=y
+CONFIG_MEMCG=y
+CONFIG_BLK_CGROUP=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CFS_BANDWIDTH=y
+CONFIG_RT_GROUP_SCHED=y
+CONFIG_CGROUP_PIDS=y
+CONFIG_CGROUP_RDMA=y
+CONFIG_CPUSETS=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_CGROUP_BPF=y
+CONFIG_NAMESPACES=y
+# CONFIG_TIME_NS is not set
+CONFIG_USER_NS=y
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_RD_GZIP is not set
+# CONFIG_RD_BZIP2 is not set
+# CONFIG_RD_LZMA is not set
+# CONFIG_RD_XZ is not set
+# CONFIG_RD_LZO is not set
+# CONFIG_RD_LZ4 is not set
+# CONFIG_RD_ZSTD is not set
+# CONFIG_INITRAMFS_PRESERVE_MTIME is not set
+CONFIG_LD_DEAD_CODE_DATA_ELIMINATION=y
+CONFIG_EXPERT=y
+# CONFIG_SGETMASK_SYSCALL is not set
+# CONFIG_IO_URING is not set
+# CONFIG_RSEQ is not set
+# CONFIG_CACHESTAT_SYSCALL is not set
+CONFIG_ECONET=y
+CONFIG_CPU_MIPS32_R2=y
+CONFIG_ZBOOT_LOAD_ADDRESS=0x80020000
+CONFIG_ARCH_FORCE_MAX_ORDER=11
+# CONFIG_MIPS_FP_SUPPORT is not set
+CONFIG_NR_CPUS=2
+CONFIG_HZ_100=y
+CONFIG_MIPS_RAW_APPENDED_DTB=y
+# CONFIG_SCHED_SMT is not set
+CONFIG_JUMP_LABEL=y
+# CONFIG_STACKPROTECTOR_STRONG is not set
+# CONFIG_GCC_PLUGINS is not set
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_BLOCK_LEGACY_AUTOLOAD is not set
+CONFIG_BLK_DEV_THROTTLING=y
+# CONFIG_BLK_DEBUG_FS is not set
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_OF_PARTITION=y
+# CONFIG_MQ_IOSCHED_DEADLINE is not set
+# CONFIG_MQ_IOSCHED_KYBER is not set
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+CONFIG_SLAB_FREELIST_RANDOM=y
+CONFIG_SLAB_FREELIST_HARDENED=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_LRU_GEN=y
+CONFIG_LRU_GEN_ENABLED=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IP_ROUTE_MULTIPATH=y
+CONFIG_IP_ROUTE_VERBOSE=y
+CONFIG_IP_MROUTE=y
+CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
+CONFIG_IP_PIMSM_V1=y
+CONFIG_IP_PIMSM_V2=y
+CONFIG_SYN_COOKIES=y
+# CONFIG_INET_DIAG is not set
+CONFIG_TCP_CONG_ADVANCED=y
+# CONFIG_TCP_CONG_BIC is not set
+# CONFIG_TCP_CONG_WESTWOOD is not set
+# CONFIG_TCP_CONG_HTCP is not set
+# CONFIG_IPV6_SIT is not set
+CONFIG_IPV6_SUBTREES=y
+CONFIG_IPV6_MROUTE=y
+CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y
+CONFIG_IPV6_PIMSM_V2=y
+CONFIG_IPV6_SEG6_LWTUNNEL=y
+CONFIG_MPTCP=y
+CONFIG_NETFILTER=y
+# CONFIG_NETFILTER_EGRESS is not set
+CONFIG_NF_CONNTRACK=m
+CONFIG_NF_CONNTRACK_MARK=y
+CONFIG_NF_CONNTRACK_ZONES=y
+CONFIG_NF_CONNTRACK_PROCFS=y
+CONFIG_NF_CONNTRACK_TIMEOUT=y
+# CONFIG_NF_CT_PROTO_SCTP is not set
+CONFIG_NF_TABLES=m
+CONFIG_NF_TABLES_INET=y
+CONFIG_NF_TABLES_NETDEV=y
+CONFIG_NFT_NUMGEN=m
+CONFIG_NFT_CT=m
+CONFIG_NFT_FLOW_OFFLOAD=m
+CONFIG_NFT_LOG=m
+CONFIG_NFT_LIMIT=m
+CONFIG_NFT_MASQ=m
+CONFIG_NFT_REDIR=m
+CONFIG_NFT_NAT=m
+CONFIG_NFT_QUOTA=m
+CONFIG_NFT_REJECT=m
+CONFIG_NFT_HASH=m
+CONFIG_NFT_FIB_INET=m
+CONFIG_NF_FLOW_TABLE_INET=m
+CONFIG_NF_FLOW_TABLE=m
+CONFIG_NFT_FIB_IPV4=m
+CONFIG_NF_TABLES_ARP=y
+CONFIG_NF_LOG_IPV4=m
+CONFIG_NFT_FIB_IPV6=m
+CONFIG_NF_LOG_IPV6=m
+CONFIG_NF_TABLES_BRIDGE=m
+CONFIG_BRIDGE=y
+CONFIG_BRIDGE_VLAN_FILTERING=y
+CONFIG_VLAN_8021Q=y
+CONFIG_NET_SCHED=y
+CONFIG_NET_SCH_FQ_CODEL=y
+CONFIG_NET_SCH_DEFAULT=y
+CONFIG_DEFAULT_FQ_CODEL=y
+CONFIG_NET_SWITCHDEV=y
+CONFIG_NET_L3_MASTER_DEV=y
+CONFIG_RFKILL=y
+# CONFIG_LWTUNNEL_BPF is not set
+CONFIG_PCI=y
+CONFIG_PCIEPORTBUS=y
+CONFIG_PCIEAER=y
+# CONFIG_PCIEASPM is not set
+CONFIG_PCI_MSI=y
+# CONFIG_VGA_ARB is not set
+CONFIG_PCIE_MEDIATEK=y
+CONFIG_MTD=y
+CONFIG_MTD_BLOCK=y
+CONFIG_MTD_CFI=y
+CONFIG_MTD_CFI_INTELEXT=y
+CONFIG_MTD_CFI_AMDSTD=y
+CONFIG_MTD_COMPLEX_MAPPINGS=y
+CONFIG_MTD_SPI_NAND=y
+CONFIG_MTD_UBI=y
+CONFIG_MTD_UBI_BEB_LIMIT=13
+CONFIG_MTD_UBI_BLOCK=y
+CONFIG_NETDEVICES=y
+# CONFIG_NET_VENDOR_ASIX is not set
+# CONFIG_NET_VENDOR_ENGLEDER is not set
+# CONFIG_NET_VENDOR_FUNGIBLE is not set
+# CONFIG_NET_VENDOR_LITEX is not set
+# CONFIG_NET_VENDOR_MICROSOFT is not set
+# CONFIG_NET_VENDOR_VERTEXCOM is not set
+# CONFIG_NET_VENDOR_WANGXUN is not set
+CONFIG_PPP=m
+CONFIG_PPP_FILTER=y
+CONFIG_PPP_MULTILINK=y
+CONFIG_PPPOE=m
+CONFIG_PPP_ASYNC=m
+# CONFIG_WLAN_VENDOR_ADMTEK is not set
+# CONFIG_WLAN_VENDOR_ATH is not set
+# CONFIG_WLAN_VENDOR_ATMEL is not set
+# CONFIG_WLAN_VENDOR_BROADCOM is not set
+# CONFIG_WLAN_VENDOR_INTEL is not set
+# CONFIG_WLAN_VENDOR_INTERSIL is not set
+# CONFIG_WLAN_VENDOR_MARVELL is not set
+# CONFIG_WLAN_VENDOR_MEDIATEK is not set
+# CONFIG_WLAN_VENDOR_MICROCHIP is not set
+# CONFIG_WLAN_VENDOR_PURELIFI is not set
+# CONFIG_WLAN_VENDOR_RALINK is not set
+# CONFIG_WLAN_VENDOR_REALTEK is not set
+# CONFIG_WLAN_VENDOR_RSI is not set
+# CONFIG_WLAN_VENDOR_SILABS is not set
+# CONFIG_WLAN_VENDOR_ST is not set
+# CONFIG_WLAN_VENDOR_TI is not set
+# CONFIG_WLAN_VENDOR_ZYDAS is not set
+# CONFIG_WLAN_VENDOR_QUANTENNA is not set
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_LEGACY_TIOCSTI is not set
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_OF_PLATFORM=y
+# CONFIG_HW_RANDOM is not set
+# CONFIG_DEVMEM is not set
+CONFIG_SPI=y
+# CONFIG_PTP_1588_CLOCK is not set
+CONFIG_GPIOLIB=y
+# CONFIG_HWMON is not set
+CONFIG_WATCHDOG=y
+CONFIG_MFD_SYSCON=y
+# CONFIG_USB_PCI is not set
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_CLASS_MULTICOLOR=y
+CONFIG_LEDS_GPIO=m
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TIMER=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
+CONFIG_LEDS_TRIGGER_NETDEV=y
+CONFIG_STAGING=y
+# CONFIG_MIPS_PLATFORM_DEVICES is not set
+CONFIG_COMMON_CLK_EN7523=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_RESET_CONTROLLER=y
+CONFIG_PHY_ECONET_PCIE=y
+# CONFIG_DNOTIFY is not set
+CONFIG_FANOTIFY=y
+CONFIG_OVERLAY_FS=y
+# CONFIG_OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW is not set
+# CONFIG_PROC_PAGE_MONITOR is not set
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_JFFS2_FS=y
+CONFIG_JFFS2_SUMMARY=y
+CONFIG_JFFS2_FS_XATTR=y
+CONFIG_JFFS2_COMPRESSION_OPTIONS=y
+CONFIG_UBIFS_FS=y
+CONFIG_SQUASHFS=y
+CONFIG_SQUASHFS_FILE_DIRECT=y
+CONFIG_SQUASHFS_COMPILE_DECOMP_MULTI_PERCPU=y
+# CONFIG_SQUASHFS_ZLIB is not set
+CONFIG_SQUASHFS_XZ=y
+CONFIG_SQUASHFS_EMBEDDED=y
+CONFIG_KEYS=y
+CONFIG_INIT_STACK_NONE=y
+CONFIG_FORTIFY_SOURCE=y
+CONFIG_HARDENED_USERCOPY=y
+CONFIG_LIST_HARDENED=y
+CONFIG_CRYPTO_NULL=y
+CONFIG_CRYPTO_AES=y
+CONFIG_CRYPTO_CCM=y
+CONFIG_CRYPTO_GCM=y
+# CONFIG_CRYPTO_HW is not set
+# CONFIG_XZ_DEC_X86 is not set
+# CONFIG_XZ_DEC_POWERPC is not set
+# CONFIG_XZ_DEC_ARM is not set
+# CONFIG_XZ_DEC_ARMTHUMB is not set
+# CONFIG_XZ_DEC_ARM64 is not set
+# CONFIG_XZ_DEC_SPARC is not set
+# CONFIG_XZ_DEC_RISCV is not set
+CONFIG_PRINTK_TIME=y
+# CONFIG_DEBUG_MISC is not set
+CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
+CONFIG_DEBUG_INFO_REDUCED=y
+CONFIG_FRAME_WARN=1024
+CONFIG_STRIP_ASM_SYMS=y
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_MAGIC_SYSRQ_SERIAL is not set
+CONFIG_DEBUG_FS=y
+# CONFIG_SLUB_DEBUG is not set
+CONFIG_SCHED_STACK_END_CHECK=y
+CONFIG_PANIC_ON_OOPS=y
+CONFIG_PANIC_TIMEOUT=1
+CONFIG_RCU_CPU_STALL_TIMEOUT=60
+# CONFIG_RCU_TRACE is not set
+# CONFIG_FTRACE is not set

base-commit: 3b7711be02612845e44b5e9ef7c0b9f203cf29b6
prerequisite-patch-id: 0f044e47a76450ebb4fe52dc60a6b2f79625bbff
prerequisite-patch-id: 6380783b9da35b966b64c237b0ef50c31c7425d6
-- 
2.39.5

Re: [PATCH v2] MIPS: config: Add EcoNet EN751221 defconfig

[Randy Dunlap]

On 8/17/26 3:03 PM, Caleb James DeLisle wrote:
> Add config based on OpenWrt for EN751221 boards.
> Of note: EcoNet bootloader has a 7.2MB kernel size limit so
> ZBOOT is assumed to be needed in all cases.
> 
> Signed-off-by: Caleb James DeLisle <cjd@cjdns.fr>
> ---
> Updated to work after SERIAL_8250 and SERIAL_OF_PLATFORM removed
> from Kconfig.
> Link: https://lore.kernel.org/linux-mips/20260815235109.666268-1-julianbraha@gmail.com/
> ---
>  MAINTAINERS                                 |   1 +
>  arch/mips/configs/econet_en751221_defconfig | 264 ++++++++++++++++++++
>  2 files changed, 265 insertions(+)
>  create mode 100644 arch/mips/configs/econet_en751221_defconfig
> 
...
> 
> base-commit: 3b7711be02612845e44b5e9ef7c0b9f203cf29b6
> prerequisite-patch-id: 0f044e47a76450ebb4fe52dc60a6b2f79625bbff
> prerequisite-patch-id: 6380783b9da35b966b64c237b0ef50c31c7425d6

Hi,
Can you identify these 2 prerequisite patches?
They are not in linux-next so I can't test this patch.

thanks.
-- 
~Randy

Re: [PATCH v2] MIPS: config: Add EcoNet EN751221 defconfig

[Caleb James DeLisle]

On 28/08/2026 01:48, Randy Dunlap wrote:
>
> On 8/17/26 3:03 PM, Caleb James DeLisle wrote:
>> Add config based on OpenWrt for EN751221 boards.
>> Of note: EcoNet bootloader has a 7.2MB kernel size limit so
>> ZBOOT is assumed to be needed in all cases.
>>
>> Signed-off-by: Caleb James DeLisle <cjd@cjdns.fr>
>> ---
>> Updated to work after SERIAL_8250 and SERIAL_OF_PLATFORM removed
>> from Kconfig.
>> Link: https://lore.kernel.org/linux-mips/20260815235109.666268-1-julianbraha@gmail.com/
>> ---
>>   MAINTAINERS                                 |   1 +
>>   arch/mips/configs/econet_en751221_defconfig | 264 ++++++++++++++++++++
>>   2 files changed, 265 insertions(+)
>>   create mode 100644 arch/mips/configs/econet_en751221_defconfig
>>
> ...
>> base-commit: 3b7711be02612845e44b5e9ef7c0b9f203cf29b6
>> prerequisite-patch-id: 0f044e47a76450ebb4fe52dc60a6b2f79625bbff
>> prerequisite-patch-id: 6380783b9da35b966b64c237b0ef50c31c7425d6
> Hi,
> Can you identify these 2 prerequisite patches?
> They are not in linux-next so I can't test this patch.


Ahh, I'm sorry for not being clearer about this in the message.

The first (0f044e47a76450ebb4fe52dc60a6b2f79625bbff) is 
2077ccb9baa2cbbbccf5f0d8c2196dd9d5e43399, i.e. 
https://patch.msgid.link/20260702150704.265282-1-cjd@cjdns.fr which is 
in (at least) next-20260827 but not in mips-next. I included it so I 
could verify PCIe works on the device.

6380783b9da35b966b64c237b0ef50c31c7425d6 is the patch I mentioned: 
https://lore.kernel.org/linux-mips/20260815235109.666268-1-julianbraha@gmail.com/ 
which I applied to verify it works without needing the symbols that the 
goal was to remove.

That said, this should definitely build without either of these patches 
which is why I neglected to explain them in any more detail.

Thanks,

Caleb

>
> thanks.

Re: [PATCH v2] MIPS: config: Add EcoNet EN751221 defconfig

[Randy Dunlap]

On 8/28/26 3:40 AM, Caleb James DeLisle wrote:
> 
> On 28/08/2026 01:48, Randy Dunlap wrote:
>>
>> On 8/17/26 3:03 PM, Caleb James DeLisle wrote:
>>> Add config based on OpenWrt for EN751221 boards.
>>> Of note: EcoNet bootloader has a 7.2MB kernel size limit so
>>> ZBOOT is assumed to be needed in all cases.
>>>
>>> Signed-off-by: Caleb James DeLisle <cjd@cjdns.fr>
>>> ---
>>> Updated to work after SERIAL_8250 and SERIAL_OF_PLATFORM removed
>>> from Kconfig.
>>> Link: https://lore.kernel.org/linux-mips/20260815235109.666268-1-julianbraha@gmail.com/
>>> ---
>>>   MAINTAINERS                                 |   1 +
>>>   arch/mips/configs/econet_en751221_defconfig | 264 ++++++++++++++++++++
>>>   2 files changed, 265 insertions(+)
>>>   create mode 100644 arch/mips/configs/econet_en751221_defconfig
>>>
>> ...
>>> base-commit: 3b7711be02612845e44b5e9ef7c0b9f203cf29b6
>>> prerequisite-patch-id: 0f044e47a76450ebb4fe52dc60a6b2f79625bbff
>>> prerequisite-patch-id: 6380783b9da35b966b64c237b0ef50c31c7425d6
>> Hi,
>> Can you identify these 2 prerequisite patches?
>> They are not in linux-next so I can't test this patch.
> 
> 
> Ahh, I'm sorry for not being clearer about this in the message.
> 
> The first (0f044e47a76450ebb4fe52dc60a6b2f79625bbff) is 2077ccb9baa2cbbbccf5f0d8c2196dd9d5e43399, i.e. https://patch.msgid.link/20260702150704.265282-1-cjd@cjdns.fr which is in (at least) next-20260827 but not in mips-next. I included it so I could verify PCIe works on the device.
> 
> 6380783b9da35b966b64c237b0ef50c31c7425d6 is the patch I mentioned: https://lore.kernel.org/linux-mips/20260815235109.666268-1-julianbraha@gmail.com/ which I applied to verify it works without needing the symbols that the goal was to remove.
> 
> That said, this should definitely build without either of these patches which is why I neglected to explain them in any more detail.

Ah, right you are. Thanks.

Tested-by: Randy Dunlap <rdunlap@infradead.org>

-- 
~Randy

Re: [PATCH v2] MIPS: config: Add EcoNet EN751221 defconfig

[Thomas Bogendoerfer]

On Mon, Aug 17, 2026 at 10:03:44PM +0000, Caleb James DeLisle wrote:
> Add config based on OpenWrt for EN751221 boards.
> Of note: EcoNet bootloader has a 7.2MB kernel size limit so
> ZBOOT is assumed to be needed in all cases.
> 
> Signed-off-by: Caleb James DeLisle <cjd@cjdns.fr>
> ---
> Updated to work after SERIAL_8250 and SERIAL_OF_PLATFORM removed
> from Kconfig.
> Link: https://lore.kernel.org/linux-mips/20260815235109.666268-1-julianbraha@gmail.com/
> ---
>  MAINTAINERS                                 |   1 +
>  arch/mips/configs/econet_en751221_defconfig | 264 ++++++++++++++++++++
>  2 files changed, 265 insertions(+)
>  create mode 100644 arch/mips/configs/econet_en751221_defconfig

applied to mips-fixes

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]