Revision: linuxbios@linuxbios.org--devel/freebios--devel--2.0--patch-10

Creator:  Yinghai Lu <yhlu@tyan.com>

pci_rom.h  smbus device parent device print


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1929 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

src/devices/device.c

@@ -613,10 +613,13 @@ void dev_initialize(void)
 	struct device *dev;
 
 	printk_info("Initializing devices...\n");
+
         for (dev = all_devices; dev; dev = dev->next) {
                 if (dev->enabled && !dev->initialized &&
                         dev->ops && dev->ops->init)
                 {
+			if(dev->path.type == DEVICE_PATH_I2C)
+				printk_debug("smbus: %s[%d]->",  dev_path(dev->bus->dev), dev->bus->link );
                         printk_debug("%s init\n", dev_path(dev));
                         dev->initialized = 1;
                         dev->ops->init(dev);

src/devices/emulator/pcbios/pcibios.c

@@ -16,7 +16,7 @@ int pcibios_handler()
 	case PCI_BIOS_PRESENT:
 		X86_AH	= 0x00;		/* no config space/special cycle support */
 		X86_AL	= 0x01;		/* config mechanism 1 */
-		X86_EDX = 'P' | 'C' << 8 | 'I' | ' ' << 24;
+		X86_EDX = 'P' | 'C' << 8 | 'I' << 16 | ' ' << 24;
 		X86_EBX = 0x0210;	/* Version 2.10 */
 		X86_ECX = 0xFF00;	/* FixME: Max bus number */
 		X86_EFLAGS &= ~FB_CF;	/* clear carry flag */

src/devices/pci_rom.c

@@ -10,15 +10,15 @@ struct rom_header * pci_rom_probe(struct device *dev)
 	struct rom_header *rom_header;
 	struct pci_data *rom_data;
 
-	rom_address = pci_read_config32(dev, PCI_ROM_ADDRESS);
+        if (dev->on_mainboard) {
-
+                // in case some device PCI_ROM_ADDRESS can not be set or readonly 
-	if (rom_address == 0x00000000 || rom_address == 0xffffffff) {
-		if (dev->on_mainboard && (dev->rom_address!=0) ) {
-			// in case some device PCI_ROM_ADDRESS can not be set 
 		rom_address = dev->rom_address;
         } else {
-			return NULL;
+		rom_address = pci_read_config32(dev, PCI_ROM_ADDRESS);
 	}
+
+	if (rom_address == 0x00000000 || rom_address == 0xffffffff) {
+		return NULL;
 	}
 
 	printk_debug("rom address for %s = %x\n", dev_path(dev), rom_address);
@@ -71,16 +71,25 @@ struct rom_header *pci_rom_load(struct device *dev, struct rom_header *rom_heade
 	struct pci_data * rom_data;
 	unsigned long rom_address;
 	unsigned int rom_size;
+	unsigned int image_size=0;
 
 	rom_address = pci_read_config32(dev, PCI_ROM_ADDRESS);
+
+	do {
+		rom_header = (unsigned char *) rom_header + image_size; // get next image
 	        rom_data = (unsigned char *) rom_header + le32_to_cpu(rom_header->data);
+        	image_size = le32_to_cpu(rom_data->ilen) * 512;
+	} while ((rom_data->type!=0) && (rom_data->indicator!=0));  // make sure we got x86 version
+
+	if(rom_data->type!=0) return NULL;
+
 	rom_size = rom_header->size * 512;
 
 	if (PCI_CLASS_DISPLAY_VGA == rom_data->class_hi) {
 #if CONFIG_CONSOLE_VGA == 1
 		if (dev != vga_pri) return NULL; // only one VGA supported
-		printk_spew("%s, copying VGA ROM Image from %x to %x, %x bytes\n",
+		printk_debug("copying VGA ROM Image from %x to %x, %x bytes\n",
-			    __func__, rom_header, PCI_VGA_RAM_IMAGE_START, rom_size);
+			    rom_header, PCI_VGA_RAM_IMAGE_START, rom_size);
 		memcpy(PCI_VGA_RAM_IMAGE_START, rom_header, rom_size);
 		vga_inited = 1;
 		return (struct rom_header *) (PCI_VGA_RAM_IMAGE_START);

src/devices/root_device.c

@@ -89,6 +89,8 @@ unsigned int scan_static_bus(device_t root, unsigned int max)
 			if (child->ops && child->ops->enable) {
 				child->ops->enable(child);
 			}
+			if (child->path.type == DEVICE_PATH_I2C)	
+				printk_debug("smbus: %s[%d]->",  dev_path(child->bus->dev), child->bus->link );
 			printk_debug("%s %s\n", dev_path(child),
 				     child->enabled?"enabled": "disabled");
 		}

src/drivers/generic/debug/debug_dev.c

@@ -35,9 +35,9 @@ static void print_mem(void)
 static void print_pci_regs_all(void)
 {
         struct device *dev;
-	unsigned char bus, device, function;
+	unsigned bus, device, function;
 
-	for(bus=0; bus<=256; bus++) {
+	for(bus=0; bus<256; bus++) {
 		for(device=0; device<=0x1f; device++) {
 			for (function=0; function<=7; function++){
 				unsigned devfn;

src/include/device/pci_rom.h

@@ -36,4 +36,6 @@ struct  pci_data {
 extern struct rom_header * pci_rom_probe(struct device *dev);
 extern struct rom_header *pci_rom_load(struct device *dev, struct rom_header *rom_header);
 
+extern void pci_dev_init(struct device *dev);
+
 #endif