- struct device_node *dp = NULL, *boot_disp = NULL;
-
-#if defined(CONFIG_BOOTX_TEXT) && defined(CONFIG_PPC32)
- struct device_node *macos_display = NULL;
-#endif
- if (fb_get_options("offb", NULL))
- return -ENODEV;
-
-#if defined(CONFIG_BOOTX_TEXT) && defined(CONFIG_PPC32)
- /* If we're booted from BootX... */
- if (boot_infos != 0) {
- unsigned long addr =
- (unsigned long) boot_infos->dispDeviceBase;
- u32 *addrp;
- u64 daddr, dsize;
- unsigned int flags;
-
- /* find the device node corresponding to the macos display */
- while ((dp = of_find_node_by_type(dp, "display"))) {
- int i;
-
- /*
- * Look for an AAPL,address property first.
- */
- unsigned int na;
- unsigned int *ap =
- (unsigned int *)get_property(dp, "AAPL,address",
- &na);
- if (ap != 0) {
- for (na /= sizeof(unsigned int); na > 0;
- --na, ++ap)
- if (*ap <= addr &&
- addr < *ap + 0x1000000) {
- macos_display = dp;
- goto foundit;
- }
- }
-
- /*
- * See if the display address is in one of the address
- * ranges for this display.
- */
- i = 0;
- for (;;) {
- addrp = of_get_address(dp, i++, &dsize, &flags);
- if (addrp == NULL)
- break;
- if (!(flags & IORESOURCE_MEM))
- continue;
- daddr = of_translate_address(dp, addrp);
- if (daddr == OF_BAD_ADDR)
- continue;
- if (daddr <= addr && addr < (daddr + dsize)) {
- macos_display = dp;
- goto foundit;
- }
- }
- foundit:
- if (macos_display) {
- printk(KERN_INFO "MacOS display is %s\n",
- dp->full_name);
- break;
- }
- }
-
- /* initialize it */
- offb_init_fb(macos_display ? macos_display->
- name : "MacOS display",
- macos_display ? macos_display->
- full_name : "MacOS display",
- boot_infos->dispDeviceRect[2],
- boot_infos->dispDeviceRect[3],
- boot_infos->dispDeviceDepth,
- boot_infos->dispDeviceRowBytes, addr, NULL);
- }
-#endif /* defined(CONFIG_BOOTX_TEXT) && defined(CONFIG_PPC32) */
-
- for (dp = NULL; (dp = of_find_node_by_type(dp, "display"));) {
- if (get_property(dp, "linux,opened", NULL) &&
- get_property(dp, "linux,boot-display", NULL)) {
- boot_disp = dp;
- offb_init_nodriver(dp);
- }
- }
- for (dp = NULL; (dp = of_find_node_by_type(dp, "display"));) {
- if (get_property(dp, "linux,opened", NULL) &&
- dp != boot_disp)
- offb_init_nodriver(dp);
- }
-
- return 0;
-}
-
-
-static void __init offb_init_nodriver(struct device_node *dp)
-{
- int *pp, i;
- unsigned int len;
- int width = 640, height = 480, depth = 8, pitch;
- unsigned int flags, rsize, *up;
- u64 address = OF_BAD_ADDR;
- u32 *addrp;
- u64 asize;
-
- if ((pp = (int *) get_property(dp, "depth", &len)) != NULL
- && len == sizeof(int))
- depth = *pp;
- if ((pp = (int *) get_property(dp, "width", &len)) != NULL
- && len == sizeof(int))
- width = *pp;
- if ((pp = (int *) get_property(dp, "height", &len)) != NULL
- && len == sizeof(int))
- height = *pp;
- if ((pp = (int *) get_property(dp, "linebytes", &len)) != NULL
- && len == sizeof(int)) {
- pitch = *pp;
- if (pitch == 1)
- pitch = 0x1000;
- } else
- pitch = width;
-
- rsize = (unsigned long)pitch * (unsigned long)height *
- (unsigned long)(depth / 8);
-
- /* Try to match device to a PCI device in order to get a properly
- * translated address rather then trying to decode the open firmware
- * stuff in various incorrect ways
- */
-#ifdef CONFIG_PCI
- /* First try to locate the PCI device if any */
- {
- struct pci_dev *pdev = NULL;
-
- for_each_pci_dev(pdev) {
- if (dp == pci_device_to_OF_node(pdev))
- break;
- }
- if (pdev) {
- for (i = 0; i < 6 && address == OF_BAD_ADDR; i++) {
- if ((pci_resource_flags(pdev, i) &
- IORESOURCE_MEM) &&
- (pci_resource_len(pdev, i) >= rsize))
- address = pci_resource_start(pdev, i);
- }
- pci_dev_put(pdev);
- }
- }
-#endif /* CONFIG_PCI */
-
- /* This one is dodgy, we may drop it ... */
- if (address == OF_BAD_ADDR &&
- (up = (unsigned *) get_property(dp, "address", &len)) != NULL &&
- len == sizeof(unsigned int))
- address = (u64) * up;
-
- if (address == OF_BAD_ADDR) {
- for (i = 0; (addrp = of_get_address(dp, i, &asize, &flags))
- != NULL; i++) {
- if (!(flags & IORESOURCE_MEM))
- continue;
- if (asize >= pitch * height * depth / 8)
- break;
- }
- if (addrp == NULL) {
- printk(KERN_ERR
- "no framebuffer address found for %s\n",
- dp->full_name);
- return;
- }
- address = of_translate_address(dp, addrp);
- if (address == OF_BAD_ADDR) {
- printk(KERN_ERR
- "can't translate framebuffer address for %s\n",
- dp->full_name);
- return;
- }
-
- /* kludge for valkyrie */
- if (strcmp(dp->name, "valkyrie") == 0)
- address += 0x1000;
- }
- offb_init_fb(dp->name, dp->full_name, width, height, depth,
- pitch, address, dp);
-