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path: root/target/linux/brcm47xx/patches-2.6.23/690-mips-allow-pciregister-after-boot.patch
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Diffstat (limited to 'target/linux/brcm47xx/patches-2.6.23/690-mips-allow-pciregister-after-boot.patch')
-rw-r--r--target/linux/brcm47xx/patches-2.6.23/690-mips-allow-pciregister-after-boot.patch159
1 files changed, 0 insertions, 159 deletions
diff --git a/target/linux/brcm47xx/patches-2.6.23/690-mips-allow-pciregister-after-boot.patch b/target/linux/brcm47xx/patches-2.6.23/690-mips-allow-pciregister-after-boot.patch
deleted file mode 100644
index b6b5c26..0000000
--- a/target/linux/brcm47xx/patches-2.6.23/690-mips-allow-pciregister-after-boot.patch
+++ /dev/null
@@ -1,159 +0,0 @@
-Allow registering PCI devices after early boot.
-
-This is an ugly hack and needs to be rewritten before going upstream.
---- a/arch/mips/pci/pci.c
-+++ b/arch/mips/pci/pci.c
-@@ -21,6 +21,17 @@
- */
- int pci_probe_only;
-
-+/*
-+ * Indicate whether PCI-bios init was already done.
-+ */
-+static int pcibios_init_done;
-+
-+/*
-+ * The currently used busnumber.
-+ */
-+static int next_busno;
-+static int need_domain_info;
-+
- #define PCI_ASSIGN_ALL_BUSSES 1
-
- unsigned int pci_probe = PCI_ASSIGN_ALL_BUSSES;
-@@ -75,8 +86,32 @@
- res->start = start;
- }
-
--void __devinit register_pci_controller(struct pci_controller *hose)
-+/* Most MIPS systems have straight-forward swizzling needs. */
-+
-+static inline u8 bridge_swizzle(u8 pin, u8 slot)
-+{
-+ return (((pin - 1) + slot) % 4) + 1;
-+}
-+
-+static u8 common_swizzle(struct pci_dev *dev, u8 *pinp)
- {
-+ u8 pin = *pinp;
-+
-+ while (dev->bus->parent) {
-+ pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn));
-+ /* Move up the chain of bridges. */
-+ dev = dev->bus->self;
-+ }
-+ *pinp = pin;
-+
-+ /* The slot is the slot of the last bridge. */
-+ return PCI_SLOT(dev->devfn);
-+}
-+
-+void register_pci_controller(struct pci_controller *hose)
-+{
-+ struct pci_bus *bus;
-+
- if (request_resource(&iomem_resource, hose->mem_resource) < 0)
- goto out;
- if (request_resource(&ioport_resource, hose->io_resource) < 0) {
-@@ -84,9 +119,6 @@
- goto out;
- }
-
-- *hose_tail = hose;
-- hose_tail = &hose->next;
--
- /*
- * Do not panic here but later - this might hapen before console init.
- */
-@@ -94,41 +126,47 @@
- printk(KERN_WARNING
- "registering PCI controller with io_map_base unset\n");
- }
-- return;
-
--out:
-- printk(KERN_WARNING
-- "Skipping PCI bus scan due to resource conflict\n");
--}
-+ if (pcibios_init_done) {
-+ //TODO
-
--/* Most MIPS systems have straight-forward swizzling needs. */
-+ printk(KERN_INFO "Registering a PCI bus after boot\n");
-
--static inline u8 bridge_swizzle(u8 pin, u8 slot)
--{
-- return (((pin - 1) + slot) % 4) + 1;
--}
-+ if (!hose->iommu)
-+ PCI_DMA_BUS_IS_PHYS = 1;
-
--static u8 __init common_swizzle(struct pci_dev *dev, u8 *pinp)
--{
-- u8 pin = *pinp;
-+ bus = pci_scan_bus(next_busno, hose->pci_ops, hose);
-+ hose->bus = bus;
-+ need_domain_info = need_domain_info || hose->index;
-+ hose->need_domain_info = need_domain_info;
-+ if (bus) {
-+ next_busno = bus->subordinate + 1;
-+ /* Don't allow 8-bit bus number overflow inside the hose -
-+ reserve some space for bridges. */
-+ if (next_busno > 224) {
-+ next_busno = 0;
-+ need_domain_info = 1;
-+ }
-+ }
-+ if (!pci_probe_only)
-+ pci_assign_unassigned_resources();
-+ pci_fixup_irqs(common_swizzle, pcibios_map_irq);
-+ } else {
-+ *hose_tail = hose;
-+ hose_tail = &hose->next;
-+ }
-
-- while (dev->bus->parent) {
-- pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn));
-- /* Move up the chain of bridges. */
-- dev = dev->bus->self;
-- }
-- *pinp = pin;
-+ return;
-
-- /* The slot is the slot of the last bridge. */
-- return PCI_SLOT(dev->devfn);
-+out:
-+ printk(KERN_WARNING
-+ "Skipping PCI bus scan due to resource conflict\n");
- }
-
- static int __init pcibios_init(void)
- {
- struct pci_controller *hose;
- struct pci_bus *bus;
-- int next_busno;
-- int need_domain_info = 0;
-
- /* Scan all of the recorded PCI controllers. */
- for (next_busno = 0, hose = hose_head; hose; hose = hose->next) {
-@@ -157,6 +195,7 @@
- if (!pci_probe_only)
- pci_assign_unassigned_resources();
- pci_fixup_irqs(common_swizzle, pcibios_map_irq);
-+ pcibios_init_done = 1;
-
- return 0;
- }
---- a/drivers/ssb/main.c
-+++ b/drivers/ssb/main.c
-@@ -1185,9 +1185,7 @@
- /* ssb must be initialized after PCI but before the ssb drivers.
- * That means we must use some initcall between subsys_initcall
- * and device_initcall. */
--//FIXME on embedded we need to be early to make sure we can register
--// a new PCI bus, if needed.
--subsys_initcall(ssb_modinit);
-+fs_initcall(ssb_modinit);
-
- static void __exit ssb_modexit(void)
- {