diff options
Diffstat (limited to 'arch/mips/qemu')
| -rw-r--r-- | arch/mips/qemu/Makefile | 2 | ||||
| -rw-r--r-- | arch/mips/qemu/q-reset.c | 34 | ||||
| -rw-r--r-- | arch/mips/qemu/q-setup.c | 4 |
3 files changed, 39 insertions, 1 deletions
diff --git a/arch/mips/qemu/Makefile b/arch/mips/qemu/Makefile index 730f459..078cd30 100644 --- a/arch/mips/qemu/Makefile +++ b/arch/mips/qemu/Makefile @@ -2,6 +2,6 @@ # Makefile for Qemu specific kernel interface routines under Linux. # -obj-y = q-firmware.o q-irq.o q-mem.o q-setup.o +obj-y = q-firmware.o q-irq.o q-mem.o q-setup.o q-reset.o obj-$(CONFIG_SMP) += q-smp.o diff --git a/arch/mips/qemu/q-reset.c b/arch/mips/qemu/q-reset.c new file mode 100644 index 0000000..c04ebcf --- /dev/null +++ b/arch/mips/qemu/q-reset.c @@ -0,0 +1,34 @@ +#include <linux/config.h> + +#include <asm/io.h> +#include <asm/reboot.h> +#include <asm/cacheflush.h> +#include <asm/qemu.h> + +static void qemu_machine_restart(char *command) +{ + volatile unsigned int *reg = (unsigned int *)QEMU_RESTART_REG; + + set_c0_status(ST0_BEV | ST0_ERL); + change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED); + flush_cache_all(); + write_c0_wired(0); + *reg = 42; + while (1) + cpu_wait(); +} + +static void qemu_machine_halt(void) +{ + volatile unsigned int *reg = (unsigned int *)QEMU_HALT_REG; + + *reg = 42; + while (1) + cpu_wait(); +} + +void qemu_reboot_setup(void) +{ + _machine_restart = qemu_machine_restart; + _machine_halt = qemu_machine_halt; +} diff --git a/arch/mips/qemu/q-setup.c b/arch/mips/qemu/q-setup.c index 022eb1a..f27155b 100644 --- a/arch/mips/qemu/q-setup.c +++ b/arch/mips/qemu/q-setup.c @@ -2,6 +2,8 @@ #include <asm/io.h> #include <asm/time.h> +extern void qemu_reboot_setup(void); + #define QEMU_PORT_BASE 0xb4000000 const char *get_system_type(void) @@ -22,4 +24,6 @@ void __init plat_setup(void) { set_io_port_base(QEMU_PORT_BASE); board_timer_setup = qemu_timer_setup; + + qemu_reboot_setup(); } |
