X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=arch%2Fx86%2Fcpu%2Fioapic.c;h=01ade76a5868bc4dce7752c9a68a5a9de63a7702;hb=748ff5350ae880ea01d3d72214122c3552a5185f;hp=112a9c63b449233ce67ad3358704c4092d38514d;hpb=3d232878289bf59e83c6b152407a01f6e0fb790b;p=oweals%2Fu-boot.git

diff --git a/arch/x86/cpu/ioapic.c b/arch/x86/cpu/ioapic.c
index 112a9c63b4..01ade76a58 100644
--- a/arch/x86/cpu/ioapic.c
+++ b/arch/x86/cpu/ioapic.c
@@ -1,12 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
 #include <asm/io.h>
 #include <asm/ioapic.h>
+#include <asm/lapic.h>
 
 u32 io_apic_read(u32 reg)
 {
@@ -19,3 +19,18 @@ void io_apic_write(u32 reg, u32 val)
 	writel(reg, IO_APIC_INDEX);
 	writel(val, IO_APIC_DATA);
 }
+
+void io_apic_set_id(int ioapic_id)
+{
+	int bsp_lapicid = lapicid();
+
+	debug("IOAPIC: Initialising IOAPIC at %08x\n", IO_APIC_ADDR);
+	debug("IOAPIC: Bootstrap Processor Local APIC = %#02x\n", bsp_lapicid);
+
+	if (ioapic_id) {
+		debug("IOAPIC: ID = 0x%02x\n", ioapic_id);
+		/* Set IOAPIC ID if it has been specified */
+		io_apic_write(0x00, (io_apic_read(0x00) & 0xf0ffffff) |
+			      (ioapic_id << 24));
+	}
+}