[PATCH 3/3] MIPS: CI20: Enable SMP with two CPUs
From: Florian Fainelli
Date: Thu Nov 05 2026 - 16:14:55 EST
From: 周琰杰 (Zhou Yanjie) <zhouyanjie@xxxxxxxxxxxxxx>
Enable both JZ4780 cores now that the generic Ingenic platform provides
secondary CPU reset and mailbox support. The existing device tree
already reserves TCU channels for both per-CPU clock events.
Rebase Zhou Yanjie's original defconfig update onto the current CI20
configuration. The resulting image brought up both cores on the board.
The rebase and validation used Codex assistance.
Link: https://lists.openwall.net/linux-kernel/2020/05/19/739
Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
---
arch/mips/configs/ci20_defconfig | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/mips/configs/ci20_defconfig b/arch/mips/configs/ci20_defconfig
index 90536cab417e..09d65094b1bd 100644
--- a/arch/mips/configs/ci20_defconfig
+++ b/arch/mips/configs/ci20_defconfig
@@ -22,6 +22,8 @@ CONFIG_EXPERT=y
CONFIG_MACH_INGENIC_SOC=y
CONFIG_JZ4780_CI20=y
CONFIG_HIGHMEM=y
+CONFIG_SMP=y
+CONFIG_NR_CPUS=2
CONFIG_HZ_100=y
# CONFIG_SUSPEND is not set
# CONFIG_SECCOMP is not set
--
2.53.0