diff options
| author | Song Gao <gaosong@loongson.cn> | 2024-04-26 17:15:45 +0800 |
|---|---|---|
| committer | Song Gao <gaosong@loongson.cn> | 2024-04-29 10:25:56 +0800 |
| commit | 975a5afe376c192b1e5d5e3eff435ac8188fe41c (patch) | |
| tree | e5997bd2c32faf42f681dceb22dbba4d6af2abd9 /hw/loongarch | |
| parent | a0663efd81e6252b12ea716d13db10fdd022435b (diff) | |
hw/loongarch: fdt adds Extend I/O Interrupt Controller
fdt adds Extend I/O Interrupt Controller,
we use 'loongson,ls2k2000-eiointc'.
See:
https://github.com/torvalds/linux/blob/v6.7/drivers/irqchip/irq-loongson-eiointc.c
https://lore.kernel.org/r/764e02d924094580ac0f1d15535f4b98308705c6.1683279769.git.zhoubinbin@loongson.cn
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20240426091551.2397867-12-gaosong@loongson.cn>
Diffstat (limited to 'hw/loongarch')
| -rw-r--r-- | hw/loongarch/virt.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 88cdcb6f91..094b9d2e60 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -123,6 +123,31 @@ static void fdt_add_cpuic_node(LoongArchMachineState *lams, g_free(nodename); } +static void fdt_add_eiointc_node(LoongArchMachineState *lams, + uint32_t *cpuintc_phandle, + uint32_t *eiointc_phandle) +{ + MachineState *ms = MACHINE(lams); + char *nodename; + hwaddr extioi_base = APIC_BASE; + hwaddr extioi_size = EXTIOI_SIZE; + + *eiointc_phandle = qemu_fdt_alloc_phandle(ms->fdt); + nodename = g_strdup_printf("/eiointc@%" PRIx64, extioi_base); + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", *eiointc_phandle); + qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", + "loongson,ls2k2000-eiointc"); + qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0); + qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 1); + qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent", + *cpuintc_phandle); + qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupts", 3); + qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 0x0, + extioi_base, 0x0, extioi_size); + g_free(nodename); +} + static void fdt_add_flash_node(LoongArchMachineState *lams) { MachineState *ms = MACHINE(lams); @@ -545,7 +570,7 @@ static void loongarch_irq_init(LoongArchMachineState *lams) CPULoongArchState *env; CPUState *cpu_state; int cpu, pin, i, start, num; - uint32_t cpuintc_phandle; + uint32_t cpuintc_phandle, eiointc_phandle; /* * The connection of interrupts: @@ -614,6 +639,9 @@ static void loongarch_irq_init(LoongArchMachineState *lams) } } + /* Add Extend I/O Interrupt Controller node */ + fdt_add_eiointc_node(lams, &cpuintc_phandle, &eiointc_phandle); + pch_pic = qdev_new(TYPE_LOONGARCH_PCH_PIC); num = VIRT_PCH_PIC_IRQ_NUM; qdev_prop_set_uint32(pch_pic, "pch_pic_irq_num", num); |