x86: acpi: Deduplicate acpi_fill_madt() implementation

In Baytrail and Quark support code acpi_fill_madt() is identical.

Deduplicate its implementation by moving to lib/acpi_tables.c.

At the same time mark acpi_fill_madt() with __weak attribute to keep a
possibility to override it in platform code

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

arch/x86/cpu/baytrail/acpi.c

@@ -11,8 +11,6 @@
 #include <asm/acpi_s3.h>
 #include <asm/acpi_table.h>
 #include <asm/io.h>
-#include <asm/ioapic.h>
-#include <asm/mpspec.h>
 #include <asm/tables.h>
 #include <asm/arch/global_nvs.h>
 #include <asm/arch/iomap.h>
@@ -141,33 +139,6 @@ void acpi_create_fadt(struct acpi_fadt *fadt, struct acpi_facs *facs,
 	header->checksum = table_compute_checksum(fadt, header->length);
 }
 
-static int acpi_create_madt_irq_overrides(u32 current)
-{
-	struct acpi_madt_irqoverride *irqovr;
-	u16 sci_flags = MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH;
-	int length = 0;
-
-	irqovr = (void *)current;
-	length += acpi_create_madt_irqoverride(irqovr, 0, 0, 2, 0);
-
-	irqovr = (void *)(current + length);
-	length += acpi_create_madt_irqoverride(irqovr, 0, 9, 9, sci_flags);
-
-	return length;
-}
-
-u32 acpi_fill_madt(u32 current)
-{
-	current += acpi_create_madt_lapics(current);
-
-	current += acpi_create_madt_ioapic((struct acpi_madt_ioapic *)current,
-			io_apic_read(IO_APIC_ID) >> 24, IO_APIC_ADDR, 0);
-
-	current += acpi_create_madt_irq_overrides(current);
-
-	return current;
-}
-
 void acpi_create_gnvs(struct acpi_global_nvs *gnvs)
 {
 	struct udevice *dev;

arch/x86/cpu/quark/acpi.c

@@ -6,8 +6,6 @@
 
 #include <common.h>
 #include <asm/acpi_table.h>
-#include <asm/ioapic.h>
-#include <asm/mpspec.h>
 #include <asm/tables.h>
 #include <asm/arch/global_nvs.h>
 #include <asm/arch/iomap.h>
@@ -136,33 +134,6 @@ void acpi_create_fadt(struct acpi_fadt *fadt, struct acpi_facs *facs,
 	header->checksum = table_compute_checksum(fadt, header->length);
 }
 
-static int acpi_create_madt_irq_overrides(u32 current)
-{
-	struct acpi_madt_irqoverride *irqovr;
-	u16 sci_flags = MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH;
-	int length = 0;
-
-	irqovr = (void *)current;
-	length += acpi_create_madt_irqoverride(irqovr, 0, 0, 2, 0);
-
-	irqovr = (void *)(current + length);
-	length += acpi_create_madt_irqoverride(irqovr, 0, 9, 9, sci_flags);
-
-	return length;
-}
-
-u32 acpi_fill_madt(u32 current)
-{
-	current += acpi_create_madt_lapics(current);
-
-	current += acpi_create_madt_ioapic((struct acpi_madt_ioapic *)current,
-			io_apic_read(IO_APIC_ID) >> 24, IO_APIC_ADDR, 0);
-
-	current += acpi_create_madt_irq_overrides(current);
-
-	return current;
-}
-
 void acpi_create_gnvs(struct acpi_global_nvs *gnvs)
 {
 	/* quark is a uni-processor */

arch/x86/lib/acpi_table.c

@@ -15,7 +15,9 @@
 #include <asm/acpi/global_nvs.h>
 #include <asm/acpi_table.h>
 #include <asm/io.h>
+#include <asm/ioapic.h>
 #include <asm/lapic.h>
+#include <asm/mpspec.h>
 #include <asm/tables.h>
 #include <asm/arch/global_nvs.h>
 
@@ -241,6 +243,33 @@ int acpi_create_madt_lapic_nmi(struct acpi_madt_lapic_nmi *lapic_nmi,
 	return lapic_nmi->length;
 }
 
+static int acpi_create_madt_irq_overrides(u32 current)
+{
+	struct acpi_madt_irqoverride *irqovr;
+	u16 sci_flags = MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH;
+	int length = 0;
+
+	irqovr = (void *)current;
+	length += acpi_create_madt_irqoverride(irqovr, 0, 0, 2, 0);
+
+	irqovr = (void *)(current + length);
+	length += acpi_create_madt_irqoverride(irqovr, 0, 9, 9, sci_flags);
+
+	return length;
+}
+
+__weak u32 acpi_fill_madt(u32 current)
+{
+	current += acpi_create_madt_lapics(current);
+
+	current += acpi_create_madt_ioapic((struct acpi_madt_ioapic *)current,
+			io_apic_read(IO_APIC_ID) >> 24, IO_APIC_ADDR, 0);
+
+	current += acpi_create_madt_irq_overrides(current);
+
+	return current;
+}
+
 static void acpi_create_madt(struct acpi_madt *madt)
 {
 	struct acpi_table_header *header = &(madt->header);