[LinuxBIOS] [PATCH] amd8111_nic init

[Tao Liu]

Hello,

This patch handles the phy reset pin's polarity. AMD8111's PHY_RESET pin
is active high by default, but some PHY requires active low reset signal.
On mainboards which use 8111's PHY_RESET pin to reset PHY the bios
must select the correct PHY_RST_POL for 8111, otherwise the PHY chip
would always be held in reset state and can't be accessed by software.

I sent a similar patch several months ago but no response on this list,
would someone who has cvs commit right check and apply it?

-- 
Tao


diff -Naur freebios2-20050305-0000/src/include/device/pci_ids.h
freebios2-20050305-0000-lt/src/include/device/pci_ids.h
--- freebios2-20050305-0000/src/include/device/pci_ids.h	2004-12-11
04:50:43.000000000 +0800
+++ freebios2-20050305-0000-lt/src/include/device/pci_ids.h	2005-03-07
15:43:04.000000000 +0800
@@ -418,6 +418,7 @@
 #define PCI_DEVICE_ID_AMD_8111_SMB      0x746a
 #define PCI_DEVICE_ID_AMD_8111_ACPI     0x746b
 
+#define PCI_DEVICE_ID_AMD_8111_NIC	0x7462
 #define PCI_DEVICE_ID_AMD_8111_USB2     0x7463
 #define PCI_DEVICE_ID_AMD_8131_PCIX	0x7450
 #define PCI_DEVICE_ID_AMD_8131_IOAPIC   0x7451
diff -Naur freebios2-20050305-0000/src/southbridge/amd/amd8111/amd8111_nic.c
freebios2-20050305-0000-lt/src/southbridge/amd/amd8111/amd8111_nic.c
--- freebios2-20050305-0000/src/southbridge/amd/amd8111/amd8111_nic.c	2004-10-21
18:44:04.000000000 +0800
+++ freebios2-20050305-0000-lt/src/southbridge/amd/amd8111/amd8111_nic.c	2005-03-18
16:17:04.000000000 +0800
@@ -8,18 +8,82 @@
 #include <device/pci_ops.h>
 #include "amd8111.h"
 
+#define writel(val,addr) (*(volatile uint32_t *)(addr) = (val))
 
+#define CMD3		0x54
+
+typedef enum {
+	VAL3			= (1 << 31),   /* VAL bit for byte 3 */
+	VAL2			= (1 << 23),   /* VAL bit for byte 2 */
+	VAL1			= (1 << 15),   /* VAL bit for byte 1 */
+	VAL0			= (1 << 7),    /* VAL bit for byte 0 */
+}VAL_BITS;
+
+typedef enum {
+	/* VAL3 */
+	ASF_INIT_DONE_ALIAS	= (1 << 29),
+	/* VAL2 */
+	JUMBO			= (1 << 21),
+	VSIZE			= (1 << 20),	
+	VLONLY			= (1 << 19),
+	VL_TAG_DEL		= (1 << 18),	
+	/* VAL1 */
+	EN_PMGR			= (1 << 14),			
+	INTLEVEL		= (1 << 13),
+	FORCE_FULL_DUPLEX	= (1 << 12),	
+	FORCE_LINK_STATUS	= (1 << 11),	
+	APEP			= (1 << 10),	
+	MPPLBA			= (1 << 9),	
+	/* VAL0 */
+	RESET_PHY_PULSE		= (1 << 2),	
+	RESET_PHY		= (1 << 1),	
+	PHY_RST_POL		= (1 << 0),	
+}CMD3_BITS;
+
+static void nic_init(struct device *dev)
+{
+	struct southbridge_amd_amd8111_config *conf;
+	struct resource *resource;
+	void *mmio;
+
+	conf = dev->chip_info;
+	resource = find_resource(dev, PCI_BASE_ADDRESS_0);
+	mmio = (void *)resource->base;
+
+	/* Hard Reset PHY */
+	printk_debug("Reseting PHY... ");
+	if (conf->phy_lowreset) {
+		writel(VAL0 | PHY_RST_POL | RESET_PHY , mmio + CMD3);
+	} else {
+		writel(VAL0 | RESET_PHY, mmio + CMD3);
+	}
+	mdelay(15);
+	writel(RESET_PHY, mmio + CMD3);
+	printk_debug("Done\n");
+}
+
+static void lpci_set_subsystem(device_t dev, unsigned vendor, unsigned device)
+{
+	pci_write_config32(dev, 0xc8,
+		((device & 0xffff) << 16) | (vendor & 0xffff));
+}
+
+static struct pci_operations lops_pci = {
+	.set_subsystem = lpci_set_subsystem,
+};
+	
 static struct device_operations nic_ops  = {
 	.read_resources   = pci_dev_read_resources,
 	.set_resources    = pci_dev_set_resources,
 	.enable_resources = pci_dev_enable_resources,
-	.enable           = amd8111_enable,
-	.init             = 0,
+	.init		  = nic_init,
 	.scan_bus         = 0,
+	.enable		  = amd8111_enable,
+	.ops_pci	  = &lops_pci,
 };
 
 static struct pci_driver nic_driver __pci_driver = {
 	.ops    = &nic_ops,
 	.vendor = PCI_VENDOR_ID_AMD,
-	.device = 0x7462,
+	.device = PCI_DEVICE_ID_AMD_8111_NIC,
 };
diff -Naur freebios2-20050305-0000/src/southbridge/amd/amd8111/chip.h
freebios2-20050305-0000-lt/src/southbridge/amd/amd8111/chip.h
--- freebios2-20050305-0000/src/southbridge/amd/amd8111/chip.h	2004-10-21
18:44:04.000000000 +0800
+++ freebios2-20050305-0000-lt/src/southbridge/amd/amd8111/chip.h	2005-03-07
16:12:27.000000000 +0800
@@ -5,6 +5,7 @@
 {
 	unsigned int ide0_enable : 1;
 	unsigned int ide1_enable : 1;
+	unsigned int phy_lowreset : 1;
 };
 
 struct chip_operations;