Thanks to the great efforts of Morgan Tsai of SiS we support the SiS966
southbridge now:
From: Morgan Tsai <my_tsai@sis.com>
It supports SiS761GX / SiS966 chipset, only for AMD K8 platform so far.
Due to integrated VGA sharing system memory, some code in southbridge
folder have to init northbridge.
Copyright (C) 2007 Morgan Tsai <my_tsai@sis.com>
Copyright (C) 2007 Silicon Integrated Systems Corp. (SiS)
Change Log:
Newly support GIGABYTE GA-2761GXDK
CPU type: AMD AM2 socket
Northbridge: SiS 761GX
Southbridge: SiS 966
SuperIO: ITE8716F
Signed-off-by: Morgan Tsai <my_tsai@sis.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2902 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
diff --git a/src/southbridge/sis/sis966/sis966_ide.c b/src/southbridge/sis/sis966/sis966_ide.c
new file mode 100644
index 0000000..0b2b343
--- /dev/null
+++ b/src/southbridge/sis/sis966/sis966_ide.c
@@ -0,0 +1,175 @@
+/*
+ * This file is part of the LinuxBIOS project.
+ *
+ * Copyright (C) 2004 Tyan Computer
+ * Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer.
+ * Copyright (C) 2006,2007 AMD
+ * Written by Yinghai Lu <yinghai.lu@amd.com> for AMD.
+ * Copyright (C) 2007 Silicon Integrated Systems Corp. (SiS)
+ * Written by Morgan Tsai <my_tsai@sis.com> for SiS.
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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_ids.h>
+#include <device/pci_ops.h>
+#include <arch/io.h>
+#include "sis966.h"
+
+uint8_t SiS_SiS5513_init[49][3]={
+{0x04, 0xFF, 0x05},
+{0x0D, 0xFF, 0x80},
+{0x2C, 0xFF, 0x39},
+{0x2D, 0xFF, 0x10},
+{0x2E, 0xFF, 0x13},
+{0x2F, 0xFF, 0x55},
+{0x50, 0xFF, 0xA2},
+{0x51, 0xFF, 0x21},
+{0x53, 0xFF, 0x21},
+{0x54, 0xFF, 0x2A},
+{0x55, 0xFF, 0x96},
+{0x52, 0xFF, 0xA2},
+{0x56, 0xFF, 0x81},
+{0x57, 0xFF, 0xC0},
+{0x60, 0xFF, 0xFB},
+{0x61, 0xFF, 0xAA},
+{0x62, 0xFF, 0xFB},
+{0x63, 0xFF, 0xAA},
+{0x81, 0xFF, 0xB3},
+{0x82, 0xFF, 0x72},
+{0x83, 0xFF, 0x40},
+{0x85, 0xFF, 0xB3},
+{0x86, 0xFF, 0x72},
+{0x87, 0xFF, 0x40},
+{0x94, 0xFF, 0xC0},
+{0x95, 0xFF, 0x08},
+{0x96, 0xFF, 0xC0},
+{0x97, 0xFF, 0x08},
+{0x98, 0xFF, 0xCC},
+{0x99, 0xFF, 0x04},
+{0x9A, 0xFF, 0x0C},
+{0x9B, 0xFF, 0x14},
+{0xA0, 0xFF, 0x11},
+{0x57, 0xFF, 0xD0},
+
+{0xD8, 0xFE, 0x01}, // Com reset
+{0xC8, 0xFE, 0x01},
+{0xC4, 0xFF, 0xFF}, // Clear status
+{0xC5, 0xFF, 0xFF},
+{0xC6, 0xFF, 0xFF},
+{0xC7, 0xFF, 0xFF},
+{0xD4, 0xFF, 0xFF},
+{0xD5, 0xFF, 0xFF},
+{0xD6, 0xFF, 0xFF},
+{0xD7, 0xFF, 0xFF},
+
+
+{0x2C, 0xFF, 0x39}, // set subsystem ID
+{0x2D, 0xFF, 0x10},
+{0x2E, 0xFF, 0x13},
+{0x2F, 0xFF, 0x55},
+
+
+{0x00, 0x00, 0x00} //End of table
+};
+
+static void ide_init(struct device *dev)
+{
+ struct southbridge_sis_sis966_config *conf;
+ /* Enable ide devices so the linux ide driver will work */
+ uint32_t dword;
+ uint16_t word;
+ uint8_t byte;
+ conf = dev->chip_info;
+
+
+
+printk_debug("ide_init:---------->\n");
+
+
+//-------------- enable IDE (SiS5513) -------------------------
+{
+ uint8_t temp8;
+ int i=0;
+ while(SiS_SiS5513_init[i][0] != 0)
+ { temp8 = pci_read_config8(dev, SiS_SiS5513_init[i][0]);
+ temp8 &= SiS_SiS5513_init[i][1];
+ temp8 |= SiS_SiS5513_init[i][2];
+ pci_write_config8(dev, SiS_SiS5513_init[i][0], temp8);
+ i++;
+ };
+}
+//-----------------------------------------------------------
+
+ word = pci_read_config16(dev, 0x50);
+ /* Ensure prefetch is disabled */
+ word &= ~((1 << 15) | (1 << 13));
+ if (conf->ide1_enable) {
+ /* Enable secondary ide interface */
+ word |= (1<<0);
+ printk_debug("IDE1 \t");
+ }
+ if (conf->ide0_enable) {
+ /* Enable primary ide interface */
+ word |= (1<<1);
+ printk_debug("IDE0\n");
+ }
+
+ word |= (1<<12);
+ word |= (1<<14);
+
+ pci_write_config16(dev, 0x50, word);
+
+
+ byte = 0x20 ; // Latency: 64-->32
+ pci_write_config8(dev, 0xd, byte);
+
+ dword = pci_read_config32(dev, 0xf8);
+ dword |= 12;
+ pci_write_config32(dev, 0xf8, dword);
+#if CONFIG_PCI_ROM_RUN == 1
+ pci_dev_init(dev);
+#endif
+
+}
+
+static void lpci_set_subsystem(device_t dev, unsigned vendor, unsigned device)
+{
+ pci_write_config32(dev, 0x40,
+ ((device & 0xffff) << 16) | (vendor & 0xffff));
+}
+static struct pci_operations lops_pci = {
+ .set_subsystem = lpci_set_subsystem,
+};
+
+static struct device_operations ide_ops = {
+ .read_resources = pci_dev_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .enable_resources = pci_dev_enable_resources,
+ .init = ide_init,
+ .scan_bus = 0,
+// .enable = sis966_enable,
+ .ops_pci = &lops_pci,
+};
+
+static struct pci_driver ide_driver __pci_driver = {
+ .ops = &ide_ops,
+ .vendor = PCI_VENDOR_ID_SIS,
+ .device = PCI_DEVICE_ID_SIS_SIS966_IDE,
+};
+