From f60df20aa966c3de850afafe3cce70a51d0b261c Mon Sep 17 00:00:00 2001
From: Miao Yan <yanmiaobest@gmail.com>
Date: Thu, 7 Jan 2016 01:32:00 -0800
Subject: x86: qemu: add fw_cfg support

The QEMU fw_cfg interface allows the guest to retrieve various data
information from QEMU. For example, APCI/SMBios tables, number of online
cpus, kernel data and command line, etc.

This patch adds support for QEMU fw_cfg interface.

Signed-off-by: Miao Yan <yanmiaobest@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
---
 arch/x86/cpu/qemu/qemu.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'arch/x86/cpu/qemu/qemu.c')

diff --git a/arch/x86/cpu/qemu/qemu.c b/arch/x86/cpu/qemu/qemu.c
index 1f93f72dc8d..46111c9cf05 100644
--- a/arch/x86/cpu/qemu/qemu.c
+++ b/arch/x86/cpu/qemu/qemu.c
@@ -11,6 +11,7 @@
 #include <asm/processor.h>
 #include <asm/arch/device.h>
 #include <asm/arch/qemu.h>
+#include <asm/fw_cfg.h>
 
 static bool i440fx;
 
@@ -57,6 +58,8 @@ static void qemu_chipset_init(void)
 		x86_pci_write_config32(PCI_BDF(0, 0, 0), PCIEX_BAR,
 				       CONFIG_PCIE_ECAM_BASE | BAR_EN);
 	}
+
+	qemu_fwcfg_init();
 }
 
 int arch_cpu_init(void)
-- 
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