x86: ce4100: Use OF to setup devices

Use device tree information to setup IO_APIC configuration, interrupt
routing, HPET and everything else which cannot be enumerated by other
means.

Signed-off-by: Sebastian Andrzej Siewior <[e-mail]>
Signed-off-by: Dirk Brandewie <[e-mail]>
Acked-by: Grant Likely <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]
LKML-Reference: <[e-mail]>
Signed-off-by: Thomas Gleixner <[e-mail]>

arch/x86/platform/ce4100/ce4100.c

···
 #include <linux/serial_reg.h>
 #include <linux/serial_8250.h>
 
+#include <asm/prom.h>
 #include <asm/setup.h>
+#include <asm/i8259.h>
 #include <asm/io.h>
+#include <asm/io_apic.h>
 
 static int ce4100_i8042_detect(void)
 {
 	return 0;
 }
 
-static void __init sdv_find_smp_config(void)
-{
-}
-
 #ifdef CONFIG_SERIAL_8250
-
 
 static unsigned int mem_serial_in(struct uart_port *p, int offset)
 {
···
 	sdv_serial_fixup();
 }
 
+#ifdef CONFIG_X86_IO_APIC
+static void __cpuinit sdv_pci_init(void)
+{
+	x86_of_pci_init();
+	/* We can't set this earlier, because we need to calibrate the timer */
+	legacy_pic = &null_legacy_pic;
+}
+#endif
+
 /*
  * CE4100 specific x86_init function overrides and early setup
  * calls.
···
 	x86_init.oem.arch_setup = sdv_arch_setup;
 	x86_platform.i8042_detect = ce4100_i8042_detect;
 	x86_init.resources.probe_roms = x86_init_noop;
-	x86_init.mpparse.get_smp_config = x86_init_uint_noop;
-	x86_init.mpparse.find_smp_config = sdv_find_smp_config;
+	x86_init.mpparse.get_smp_config = x86_dtb_get_config;
+	x86_init.mpparse.find_smp_config = x86_dtb_find_config;
+
+#ifdef CONFIG_X86_IO_APIC
+	x86_init.pci.init_irq = sdv_pci_init;
+	x86_init.mpparse.setup_ioapic_ids = setup_ioapic_ids_from_mpc_nocheck;
+#endif
 }