Add support for the VIA VT8237R southbridge.

Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Acked-by: <corey.osgood@gmail.com>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2907 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 89 insertions, 0 deletions

diff --git a/src/southbridge/via/vt8237r/vt8237r.c b/src/southbridge/via/vt8237r/vt8237r.c
new file mode 100644
index 0000000000..f810de2c19
--- /dev/null
+++ b/src/southbridge/via/vt8237r/vt8237r.c
@@ -0,0 +1,89 @@
+/*
+ * This file is part of the LinuxBIOS project.
+ *
+ * Copyright (C) 2007 Rudolf Marek <r.marek@assembler.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License v2 as published by
+ * the Free Software Foundation.
+ *
+ * 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 <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ops.h>
+#include <device/pci_ids.h>
+#include <pc80/keyboard.h>
+#include "chip.h"
+
+/*
+ * Datasheet: http://www.via.com.tw/en/downloads/datasheets/chipsets/
+ *		VT8237R_SouthBridge_Revision2.06_Lead-Free.zip
+ */
+
+void hard_reset(void)
+{
+	printk_err("NO HARD RESET ON VT8237R! FIX ME!\n");
+}
+
+#if DEFAULT_CONSOLE_LOGLEVEL > 7
+void writeback(struct device *dev, u16 where, u8 what)
+{
+	u8 regval;
+
+	pci_write_config8(dev, where, what);
+	regval = pci_read_config8(dev, where);
+
+	if (regval != what) {
+		print_debug("Writeback to ");
+		print_debug_hex8(where);
+		print_debug("failed ");
+		print_debug_hex8(regval);
+		print_debug("\n ");	/* TODO: Drop the space? */
+	}
+}
+#else
+void writeback(struct device *dev, u16 where, u8 what)
+{
+	pci_write_config8(dev, where, what);
+}
+#endif
+
+void dump_south(device_t dev)
+{
+	int i, j;
+
+	for (i = 0; i < 256; i += 16) {
+		printk_debug("%02x: ", i);
+		for (j = 0; j < 16; j++) {
+			printk_debug("%02x ",
+				     pci_read_config8(dev, i + j));
+		}
+		printk_debug("\n");
+	}
+}
+
+static void vt8237r_enable(struct device *dev)
+{
+	struct southbridge_via_vt8237r_config *sb =
+	(struct southbridge_via_vt8237r_config *) dev->chip_info;
+
+	pci_write_config8(dev, 0x50, sb->fn_ctrl_lo);
+	pci_write_config8(dev, 0x51, sb->fn_ctrl_hi);
+
+	/* TODO: If SATA is disabled, move IDE to fn0 to conform PCI specs. */
+}
+
+struct chip_operations southbridge_via_vt8237r_ops = {
+	CHIP_NAME("VIA VT8237R Southbridge")
+	.enable_dev = vt8237r_enable,
+};