diff options
| -rw-r--r-- | arch/x86/kernel/devicetree.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c index 2739d5613a38..dbb3bda40af9 100644 --- a/arch/x86/kernel/devicetree.c +++ b/arch/x86/kernel/devicetree.c @@ -11,6 +11,7 @@ #include <linux/of_platform.h> #include <linux/slab.h> +#include <asm/hpet.h> #include <asm/irq_controller.h> #include <asm/apic.h> @@ -98,6 +99,23 @@ void __init add_dtb(u64 data) initial_dtb = data + offsetof(struct setup_data, data); } +static void __init dtb_setup_hpet(void) +{ + struct device_node *dn; + struct resource r; + int ret; + + dn = of_find_compatible_node(NULL, NULL, "intel,ce4100-hpet"); + if (!dn) + return; + ret = of_address_to_resource(dn, 0, &r); + if (ret) { + WARN_ON(1); + return; + } + hpet_address = r.start; +} + static void __init dtb_lapic_setup(void) { #ifdef CONFIG_X86_LOCAL_APIC @@ -197,5 +215,6 @@ void __init x86_dtb_get_config(unsigned int unused) of_scan_flat_dt(early_init_dt_scan_root, NULL); unflatten_device_tree(); + dtb_setup_hpet(); dtb_apic_setup(); } |