diff options
| author | Shiji Yang <[email protected]> | 2025-07-27 13:55:20 +0800 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2026-02-03 12:51:37 -0600 |
| commit | 80a3572f9bc3fdd8f0b0fa73f2f853da71b059eb (patch) | |
| tree | 35c3f76ab2e19a1fe7f4647df2d09f18797fa95d | |
| parent | 00618f72126eace8f291eb3d15b337b891be4055 (diff) | |
mips: mtmips: add CPU reset support for MT7628
Allow the system to reset the CPU without calling the reset
controller. This patch also removed the default SYSRESET controller
for MT7628, as it is now optional.
Signed-off-by: Shiji Yang <[email protected]>
| -rw-r--r-- | arch/mips/mach-mtmips/Kconfig | 3 | ||||
| -rw-r--r-- | arch/mips/mach-mtmips/mt7628/init.c | 8 | ||||
| -rw-r--r-- | arch/mips/mach-mtmips/mt7628/mt7628.h | 1 |
3 files changed, 9 insertions, 3 deletions
diff --git a/arch/mips/mach-mtmips/Kconfig b/arch/mips/mach-mtmips/Kconfig index 9c190cfc6ff..a8c8be8ad43 100644 --- a/arch/mips/mach-mtmips/Kconfig +++ b/arch/mips/mach-mtmips/Kconfig @@ -104,8 +104,6 @@ config SOC_MT7628 select PINCTRL_MT7628 select PINCONF select MTK_SERIAL - select SYSRESET - select SYSRESET_RESETCTL select SPL_SEPARATE_BSS if SPL select SPL_INIT_STACK_WITHOUT_MALLOC_F if SPL select SPL_LOADER_SUPPORT if SPL @@ -113,7 +111,6 @@ config SOC_MT7628 select SPL_SIMPLE_BUS if SPL_DM select SPL_DM_SERIAL if SPL_DM select SPL_CLK if SPL_DM && SPL_SERIAL - select SPL_SYSRESET if SPL_DM select SPL_OF_LIBFDT if SPL_OF_CONTROL help This supports MediaTek MT7628/MT7688. diff --git a/arch/mips/mach-mtmips/mt7628/init.c b/arch/mips/mach-mtmips/mt7628/init.c index 2996fd9ef4e..a0e731121c9 100644 --- a/arch/mips/mach-mtmips/mt7628/init.c +++ b/arch/mips/mach-mtmips/mt7628/init.c @@ -110,3 +110,11 @@ ulong notrace get_tbclk(void) { return gd->arch.timer_freq; } + +void _machine_restart(void) +{ + void __iomem *sysc = ioremap_nocache(SYSCTL_BASE, SYSCTL_SIZE); + + while (1) + writel(SYS_RST, sysc + SYSCTL_RSTCTL_REG); +} diff --git a/arch/mips/mach-mtmips/mt7628/mt7628.h b/arch/mips/mach-mtmips/mt7628/mt7628.h index 391880b014e..aac6e1278b2 100644 --- a/arch/mips/mach-mtmips/mt7628/mt7628.h +++ b/arch/mips/mach-mtmips/mt7628/mt7628.h @@ -49,6 +49,7 @@ #define SYSCTL_RSTCTL_REG 0x34 #define MC_RST 0x400 +#define SYS_RST 0x01 #define SYSCTL_AGPIO_CFG_REG 0x3c #define EPHY_GPIO_AIO_EN_S 17 |