This code provides southbridge initialization for SB800 south bridges. It is dependent on the AMD CIMx/SB800 code.

Signed-off-by: Frank Vibrans <frank.vibrans@amd.com>
Acked-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Acked-by: Marc Jones <marcj303@gmail.com>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6346 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 64 insertions, 0 deletions

diff --git a/src/southbridge/amd/cimx_wrapper/sb800/early.c b/src/southbridge/amd/cimx_wrapper/sb800/early.c
new file mode 100644
index 000000000..40a18ccd4
--- /dev/null
+++ b/src/southbridge/amd/cimx_wrapper/sb800/early.c
@@ -0,0 +1,64 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+
+//#include <config.h>
+#include <stdint.h>
+#include <device/pci_ids.h>
+#include <arch/io.h>		/* inl, outl */
+#include <arch/romcc_io.h>	/* device_t */
+#include "SBPLATFORM.h"
+#include "SbEarly.h"
+#include "cfg.h"		/*sb800_cimx_config*/
+
+
+/**
+ * @brief Get SouthBridge device number
+ * @param[in] bus target bus number
+ * @return southbridge device number
+ */
+u32 get_sbdn(u32 bus)
+{
+	device_t dev;
+
+	//dev = PCI_DEV(bus, 0x14, 0);
+	dev = pci_locate_device_on_bus(
+			PCI_ID(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SB800_SM),
+			bus);
+
+	return (dev >> 15) & 0x1f;
+}
+
+
+/**
+ * @brief South Bridge CIMx romstage entry,
+ *        wrapper of sbPowerOnInit entry point.
+ */
+void sb_poweron_init(void)
+{
+	AMDSBCFG sb_early_cfg;
+
+	sb800_cimx_config(&sb_early_cfg);
+	//sb_early_cfg.StdHeader.Func = SB_POWERON_INIT;
+	//AmdSbDispatcher(&sb_early_cfg);
+	//TODO
+	//AMD_IMAGE_HEADER was missing, when using AmdSbDispatcher,
+	// VerifyImage() will fail, LocateImage() take minitues to find the image.
+	sbPowerOnInit(&sb_early_cfg);
+}