- Apply 11_24_a_s1_core.diff from

  https://openbios.org/roundup/linuxbios/issue24
- fix up for via epia-m



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2110 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

2 files changed, 458 insertions, 0 deletions

diff --git a/src/southbridge/amd/amd8132/Config.lb b/src/southbridge/amd/amd8132/Config.lb
new file mode 100644
index 0000000000..ea045ab76d
--- /dev/null
+++ b/src/southbridge/amd/amd8132/Config.lb
@@ -0,0 +1 @@
+driver amd8132_bridge.o
diff --git a/src/southbridge/amd/amd8132/amd8132_bridge.c b/src/southbridge/amd/amd8132/amd8132_bridge.c
new file mode 100644
index 0000000000..129d2af0ff
--- /dev/null
+++ b/src/southbridge/amd/amd8132/amd8132_bridge.c
@@ -0,0 +1,457 @@
+/*============================================================================
+Copyright 2005 ADVANCED MICRO DEVICES, INC. All Rights Reserved.
+This software and any related documentation (the "Materials") are the
+confidential proprietary information of AMD. Unless otherwise provided in a
+software agreement specifically licensing the Materials, the Materials are
+provided in confidence and may not be distributed, modified, or reproduced in
+whole or in part by any means.
+LIMITATION OF LIABILITY: THE MATERIALS ARE PROVIDED "AS IS" WITHOUT ANY
+EXPRESS OR IMPLIED WARRANTY OF ANY KIND, INCLUDING BUT NOT LIMITED TO
+WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT, TITLE, FITNESS FOR ANY
+PARTICULAR PURPOSE, OR WARRANTIES ARISING FROM CONDUCT, COURSE OF DEALING, OR
+USAGE OF TRADE. IN NO EVENT SHALL AMD OR ITS LICENSORS BE LIABLE FOR ANY
+DAMAGES WHATSOEVER (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS,
+BUSINESS INTERRUPTION, OR LOSS OF INFORMATION) ARISING OUT OF THE USE OF OR
+INABILITY TO USE THE MATERIALS, EVEN IF AMD HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES. BECAUSE SOME JURISDICTIONS PROHIBIT THE EXCLUSION
+OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, THE ABOVE
+LIMITATION MAY NOT APPLY TO YOU.
+AMD does not assume any responsibility for any errors which may appear in the
+Materials nor any responsibility to support or update the Materials. AMD
+retains the right to modify the Materials at any time, without notice, and is
+not obligated to provide such modified Materials to you.
+NO SUPPORT OBLIGATION: AMD is not obligated to furnish, support, or make any
+further information, software, technical information, know-how, or show-how
+available to you.
+U.S. GOVERNMENT RESTRICTED RIGHTS: The Materials are provided with "RESTRICTED
+RIGHTS." Use, duplication, or disclosure by the Government is subject to the
+restrictions as set forth in FAR 52.227-14 and DFAR 252.227-7013, et seq., or
+its successor. Use of the Materials by the Government constitutes
+acknowledgement of AMD's proprietary rights in them.
+============================================================================*/
+//@DOC
+// in amd8132_bridge.c
+/*
+$1.0$
+*/
+// Description: amd 8132 support
+// by yhlu
+//
+//============================================================================
+
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+#include <pc80/mc146818rtc.h>
+#include <device/pci_def.h>
+#include <device/pcix.h>
+
+#define NMI_OFF 0
+
+#define NPUML 0xD9	/* Non prefetchable upper memory limit */
+#define NPUMB 0xD8	/* Non prefetchable upper memory base */
+
+static void amd8132_walk_children(struct bus *bus,
+	void (*visit)(device_t dev, void *ptr), void *ptr)
+{
+	device_t child;
+	for(child = bus->children; child; child = child->sibling)
+	{
+		if (child->path.type != DEVICE_PATH_PCI) {
+			continue;
+		}
+		if (child->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
+			amd8132_walk_children(&child->link[0], visit, ptr);
+		}
+		visit(child, ptr);
+	}
+}
+
+struct amd8132_bus_info {
+	unsigned sstatus;
+	unsigned rev;
+	int master_devices;
+	int max_func;
+};
+
+static void amd8132_count_dev(device_t dev, void *ptr)
+{
+	struct amd8132_bus_info *info = ptr;
+	/* Don't count pci bridges */
+	if (dev->hdr_type != PCI_HEADER_TYPE_BRIDGE) {
+		info->master_devices++;
+	}
+	if (PCI_FUNC(dev->path.u.pci.devfn) > info->max_func) {
+		info->max_func = PCI_FUNC(dev->path.u.pci.devfn);
+	}
+}
+
+
+static void amd8132_pcix_tune_dev(device_t dev, void *ptr)
+{
+	struct amd8132_bus_info *info = ptr;
+	unsigned cap;
+	unsigned status, cmd, orig_cmd;
+	unsigned max_read, max_tran;
+	int  sibs;
+
+	if (dev->hdr_type != PCI_HEADER_TYPE_NORMAL) {
+		return;
+	}
+	cap = pci_find_capability(dev, PCI_CAP_ID_PCIX);
+	if (!cap) {
+		return;
+	}
+	/* How many siblings does this device have? */
+	sibs = info->master_devices - 1;
+
+	printk_debug("%s AMD8132 PCI-X tuning\n", dev_path(dev));
+	status = pci_read_config32(dev, cap + PCI_X_STATUS);
+	orig_cmd = cmd = pci_read_config16(dev,cap + PCI_X_CMD);
+
+	max_read = (status & PCI_X_STATUS_MAX_READ) >> 21;
+	max_tran = (status & PCI_X_STATUS_MAX_SPLIT) >> 23;
+
+	if (info->rev == 0x01) { // only a1 need it 
+		/* Errata #53 Limit the number of split transactions to avoid starvation */
+		if (sibs >= 2) {
+			/* At most 2 outstanding split transactions when we have
+			* 3 or more bus master devices on the bus.
+			*/
+			if (max_tran > 1) {
+				max_tran = 1;
+			}
+		}
+		else if (sibs == 1) {
+			/* At most 4 outstanding split transactions when we have
+			* 2 bus master devices on the bus.
+			*/
+			if (max_tran > 3) {
+				max_tran = 3;
+			}
+		}
+		else {
+			/* At most 8 outstanding split transactions when we have
+			* only one bus master device on the bus.
+			*/
+			if (max_tran > 4) {
+				max_tran = 4;
+			}
+		}
+	}
+
+	if (max_read != ((cmd & PCI_X_CMD_MAX_READ) >> 2)) {
+		cmd &= ~PCI_X_CMD_MAX_READ;
+		cmd |= max_read << 2;
+		}
+	if (max_tran != ((cmd & PCI_X_CMD_MAX_SPLIT) >> 4)) {
+		cmd &= ~PCI_X_CMD_MAX_SPLIT;
+		cmd |= max_tran << 4;
+	}
+
+        /* Don't attempt to handle PCI-X errors */
+        cmd &= ~PCI_X_CMD_DPERR_E;
+        if (orig_cmd != cmd) {
+                pci_write_config16(dev, cap + PCI_X_CMD, cmd);
+        }
+
+
+}
+static unsigned int amd8132_scan_bus(struct bus *bus,
+	unsigned min_devfn, unsigned max_devfn, unsigned int max)
+{
+	struct amd8132_bus_info info;
+	unsigned pos;
+
+
+	/* Find the children on the bus */
+	max = pci_scan_bus(bus, min_devfn, max_devfn, max);
+
+	/* Find the revision of the 8132 */
+	info.rev = pci_read_config8(bus->dev, PCI_CLASS_REVISION);
+
+	/* Find the pcix capability and get the secondary bus status */
+	pos = pci_find_capability(bus->dev, PCI_CAP_ID_PCIX);
+	info.sstatus = pci_read_config16(bus->dev, pos + PCI_X_SEC_STATUS);
+
+	/* Print the PCI-X bus speed */
+	printk_debug("PCI: %02x: %s sstatus=%04x rev=%02x \n", bus->secondary, pcix_speed(info.sstatus), info.sstatus, info.rev);
+
+
+	/* Examine the bus and find out how loaded it is */
+	info.max_func = 0;
+	info.master_devices  = 0;
+	amd8132_walk_children(bus, amd8132_count_dev, &info);
+
+#if 0
+	/* Disable the bus if there are no devices on it 
+	 */
+	if (!bus->children)
+	{
+		unsigned pcix_misc;
+		/* Disable all of my children */
+		disable_children(bus);
+
+		/* Remember the device is disabled */
+		bus->dev->enabled = 0;
+
+		/* Disable the PCI-X clocks */
+		pcix_misc = pci_read_config32(bus->dev, 0x40);
+		pcix_misc &= ~(0x1f << 16);
+		pci_write_config32(bus->dev, 0x40, pcix_misc);
+		
+		return max;
+	}
+#endif
+
+	/* If we are in conventional PCI mode nothing more is necessary.
+	 */
+	if (PCI_X_SSTATUS_MFREQ(info.sstatus) == PCI_X_SSTATUS_CONVENTIONAL_PCI) {
+		return max;
+	}
+
+	/* Tune the devices on the bus */
+	amd8132_walk_children(bus, amd8132_pcix_tune_dev, &info);
+
+	return max;
+}
+
+static unsigned int amd8132_scan_bridge(device_t dev, unsigned int max)
+{
+	return do_pci_scan_bridge(dev, max, amd8132_scan_bus);
+}
+
+
+static void amd8132_pcix_init(device_t dev)
+{
+	uint32_t dword;
+	uint8_t byte;
+	unsigned chip_rev;
+        
+	/* Find the revision of the 8132 */
+        chip_rev = pci_read_config8(dev, PCI_CLASS_REVISION);
+
+	/* Enable memory write and invalidate ??? */
+	dword = pci_read_config32(dev, 0x04);
+        dword |= 0x10;
+	dword &= ~(1<<6); // PERSP Parity Error Response
+        pci_write_config32(dev, 0x04, dword);
+
+	if (chip_rev == 0x01) {
+		/* Errata #37 */
+		byte = pci_read_config8(dev, 0x0c);
+		if(byte == 0x08 )
+			pci_write_config8(dev, 0x0c, 0x10);
+
+#if 0
+		/* Errata #59*/
+		dword = pci_read_config32(dev, 0x40);
+		dword &= ~(1<<31);
+		pci_write_config32(dev, 0x40, dword);
+#endif
+
+	}
+
+	/* Set up error reporting, enable all */
+	/* system error enable */
+	dword = pci_read_config32(dev, 0x04);
+        dword |= (1<<8);
+        pci_write_config32(dev, 0x04, dword);
+ 	
+	/* system and error parity enable */
+	dword = pci_read_config32(dev, 0x3c);
+        dword |= (3<<16);
+        pci_write_config32(dev, 0x3c, dword);
+
+        dword = pci_read_config32(dev, 0x40);
+//        dword &= ~(1<<31); /* WriteChainEnable */
+	dword |= (1<<31); 
+	dword |= (1<<7);// must set to 1
+	dword |= (3<<21); //PCIErrorSerrDisable
+        pci_write_config32(dev, 0x40, dword);
+
+        /* EXTARB = 1, COMPAT = 0 */
+        dword = pci_read_config32(dev, 0x48);
+        dword |= (1<<3);
+	dword &= ~(1<<0);
+	dword |= (1<<15); //CLEARPCILOG_L
+	dword |= (1<<19); //PERR FATAL Enable
+	dword |= (1<<22); // SERR FATAL Enable
+	dword |= (1<<23); // LPMARBENABLE
+	dword |= (0x61<<24); //LPMARBCOUNT
+        pci_write_config32(dev, 0x48, dword);
+
+        dword = pci_read_config32(dev, 0x4c);
+        dword |= (1<<6); //intial prefetch for memory read line request
+	dword |= (1<<9); //continuous prefetch Enable for memory read line request
+        pci_write_config32(dev, 0x4c, dword);
+
+
+       /* Disable Single-Bit-Error Correction [30] = 0 */
+        dword = pci_read_config32(dev, 0x70);
+        dword &= ~(1<<30);
+        pci_write_config32(dev, 0x70, dword);
+
+	//link
+        dword = pci_read_config32(dev, 0xd4);
+        dword |= (0x5c<<16);
+        pci_write_config32(dev, 0xd4, dword);
+
+        /* TxSlack0 [16:17] = 0, RxHwLookahdEn0 [18] = 1, TxSlack1 [24:25] = 0, RxHwLookahdEn1 [26] = 1 */
+        dword = pci_read_config32(dev, 0xdc);
+	dword |= (1<<1) |  (1<<4); // stream disable 1 to 0 , DBLINSRATE
+        dword |= (1<<18)|(1<<26);
+        dword &= ~((3<<16)|(3<<24));
+        pci_write_config32(dev, 0xdc, dword);
+
+	/* Set up CRC flood enable */
+	dword = pci_read_config32(dev, 0xc0);
+	if(dword) {  /* do device A only */
+#if 0
+		dword = pci_read_config32(dev, 0xc4);
+		dword |= (1<<1);
+		pci_write_config32(dev, 0xc4, dword);
+		dword = pci_read_config32(dev, 0xc8);
+		dword |= (1<<1);
+		pci_write_config32(dev, 0xc8, dword);
+#endif
+
+	        if (chip_rev == 0x11) {
+        	        /* [18] Clock Gate Enable = 1 */
+                	dword = pci_read_config32(dev, 0xf0);
+	                dword |= 0x00040008;
+        	        pci_write_config32(dev, 0xf0, dword);
+	        }
+
+	}
+	return;
+}
+
+#define BRIDGE_40_BIT_SUPPORT 0
+#if BRIDGE_40_BIT_SUPPORT
+static void bridge_read_resources(struct device *dev)
+{
+	struct resource *res;
+	pci_bus_read_resources(dev);
+	res = find_resource(dev, PCI_MEMORY_BASE);	
+	if (res) {
+		res->limit = 0xffffffffffULL;
+	}
+}
+
+static void bridge_set_resources(struct device *dev)
+{
+	struct resource *res;
+	res = find_resource(dev, PCI_MEMORY_BASE);
+	if (res) {
+		resource_t base, end;
+		/* set the memory range */
+		dev->command |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
+		res->flags |= IORESOURCE_STORED;
+		compute_allocate_resource(&dev->link[0], res,
+			IORESOURCE_MEM | IORESOURCE_PREFETCH,
+			IORESOURCE_MEM);
+		base = res->base;
+		end  = resource_end(res);
+		pci_write_config16(dev, PCI_MEMORY_BASE, base >> 16);
+		pci_write_config8(dev, NPUML, (base >> 32) & 0xff);
+		pci_write_config16(dev, PCI_MEMORY_LIMIT, end >> 16);
+		pci_write_config8(dev, NPUMB, (end >> 32) & 0xff);
+
+		report_resource_stored(dev, res, "");
+	}
+	pci_dev_set_resources(dev);
+}
+#endif /* BRIDGE_40_BIT_SUPPORT */
+
+static struct device_operations pcix_ops  = {
+#if BRIDGE_40_BIT_SUPPORT
+        .read_resources   = bridge_read_resources,
+        .set_resources    = bridge_set_resources,
+#else
+        .read_resources   = pci_bus_read_resources,
+        .set_resources    = pci_dev_set_resources,
+#endif
+	.enable_resources = pci_bus_enable_resources,
+        .init             = amd8132_pcix_init,
+        .scan_bus         = amd8132_scan_bridge,
+	.reset_bus        = pci_bus_reset,
+};
+
+static struct pci_driver pcix_driver __pci_driver = {
+        .ops    = &pcix_ops,
+        .vendor = PCI_VENDOR_ID_AMD,
+        .device = 0x7458,
+};
+
+static void ioapic_enable(device_t dev)
+{
+	uint32_t value;
+
+	value = pci_read_config32(dev, 0x44);
+	if (dev->enabled) {
+		value |= ((1 << 1) | (1 << 0));
+	} else {
+		value &= ~((1 << 1) | (1 << 0));
+	}
+	pci_write_config32(dev, 0x44, value);
+}
+static void amd8132_ioapic_init(device_t dev)
+{
+        uint32_t dword;
+        unsigned chip_rev;
+
+        /* Find the revision of the 8132 */
+        chip_rev = pci_read_config8(dev, PCI_CLASS_REVISION);
+
+        if (chip_rev == 0x01) {
+#if 0
+                /* Errata #43 */
+                dword = pci_read_config32(dev, 0xc8);
+		dword |= (0x3<<23);
+		pci_write_config32(dev, 0xc8, dword);
+#endif
+
+        }
+
+
+        if( (chip_rev == 0x11) ||(chip_rev == 0x12) ) {
+                //for b1 b2
+                /* Errata #73 */
+                dword = pci_read_config32(dev, 0x80);
+                dword |= (0x1f<<5);
+                pci_write_config32(dev, 0x80, dword);
+                dword = pci_read_config32(dev, 0x88);
+                dword |= (0x1f<<5);
+                pci_write_config32(dev, 0x88, dword);
+
+                /* Errata #74 */
+                dword = pci_read_config32(dev, 0x7c);
+                dword &= ~(0x3<<30);
+                dword |= (0x01<<30);
+                pci_write_config32(dev, 0x7c, dword);
+        }
+
+}
+
+static struct pci_operations pci_ops_pci_dev = {
+	.set_subsystem    = pci_dev_set_subsystem,
+};
+static struct device_operations ioapic_ops = {
+	.read_resources   = pci_dev_read_resources,
+	.set_resources    = pci_dev_set_resources,
+	.enable_resources = pci_dev_enable_resources,
+	.init             = amd8132_ioapic_init,
+	.scan_bus         = 0,
+	.enable           = ioapic_enable,
+	.ops_pci          = &pci_ops_pci_dev,
+};
+
+static struct pci_driver ioapic_driver __pci_driver = {
+	.ops    = &ioapic_ops,
+	.vendor = PCI_VENDOR_ID_AMD,
+	.device = 0x7459,
+	
+};