Merge tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:
 "DeviceTree updates for 3.13.  This is a bit larger pull request than
  usual for this cycle with lots of clean-up.

   - Cross arch clean-up and consolidation of early DT scanning code.
   - Clean-up and removal of arch prom.h headers.  Makes arch specific
     prom.h optional on all but Sparc.
   - Addition of interrupts-extended property for devices connected to
     multiple interrupt controllers.
   - Refactoring of DT interrupt parsing code in preparation for
     deferred probe of interrupts.
   - ARM cpu and cpu topology bindings documentation.
   - Various DT vendor binding documentation updates"

* tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (82 commits)
  powerpc: add missing explicit OF includes for ppc
  dt/irq: add empty of_irq_count for !OF_IRQ
  dt: disable self-tests for !OF_IRQ
  of: irq: Fix interrupt-map entry matching
  MIPS: Netlogic: replace early_init_devtree() call
  of: Add Panasonic Corporation vendor prefix
  of: Add Chunghwa Picture Tubes Ltd. vendor prefix
  of: Add AU Optronics Corporation vendor prefix
  of/irq: Fix potential buffer overflow
  of/irq: Fix bug in interrupt parsing refactor.
  of: set dma_mask to point to coherent_dma_mask
  of: add vendor prefix for PHYTEC Messtechnik GmbH
  DT: sort vendor-prefixes.txt
  of: Add vendor prefix for Cadence
  of: Add empty for_each_available_child_of_node() macro definition
  arm/versatile: Fix versatile irq specifications.
  of/irq: create interrupts-extended property
  microblaze/pci: Drop PowerPC-ism from irq parsing
  of/irq: Create of_irq_parse_and_map_pci() to consolidate arch code.
  of/irq: Use irq_of_parse_and_map()
  ...

10 files changed, 24 insertions, 112 deletions

diff --git a/arch/mips/include/asm/netlogic/xlp-hal/xlp.h b/arch/mips/include/asm/netlogic/xlp-hal/xlp.h
index 17daffb280a3..470f2095b346 100644
--- a/arch/mips/include/asm/netlogic/xlp-hal/xlp.h
+++ b/arch/mips/include/asm/netlogic/xlp-hal/xlp.h
@@ -69,6 +69,7 @@ void nlm_hal_init(void);
 int xlp_get_dram_map(int n, uint64_t *dram_map);
 
 /* Device tree related */
+void xlp_early_init_devtree(void);
 void *xlp_dt_init(void *fdtp);
 
 static inline int cpu_is_xlpii(void)
diff --git a/arch/mips/include/asm/prom.h b/arch/mips/include/asm/prom.h
index 1e7e0961064b..ccd2b75f152c 100644
--- a/arch/mips/include/asm/prom.h
+++ b/arch/mips/include/asm/prom.h
@@ -17,22 +17,8 @@
 #include <linux/types.h>
 #include <asm/bootinfo.h>
 
-extern int early_init_dt_scan_memory_arch(unsigned long node,
-        const char *uname, int depth, void *data);
-
 extern void device_tree_init(void);
 
-static inline unsigned long pci_address_to_pio(phys_addr_t address)
-{
-        /*
-         * The ioport address can be directly used by inX() / outX()
-         */
-        BUG_ON(address > IO_SPACE_LIMIT);
-
-        return (unsigned long) address;
-}
-#define pci_address_to_pio pci_address_to_pio
-
 struct boot_param_header;
 
 extern void __dt_setup_arch(struct boot_param_header *bph);
diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c
index 0fa0b69cdd53..3c3b0df8f48d 100644
--- a/arch/mips/kernel/prom.c
+++ b/arch/mips/kernel/prom.c
@@ -13,12 +13,9 @@
 #include <linux/errno.h>
 #include <linux/types.h>
 #include <linux/bootmem.h>
-#include <linux/initrd.h>
 #include <linux/debugfs.h>
 #include <linux/of.h>
 #include <linux/of_fdt.h>
-#include <linux/of_irq.h>
-#include <linux/of_platform.h>
 
 #include <asm/page.h>
 #include <asm/prom.h>
@@ -40,13 +37,6 @@ char *mips_get_machine_name(void)
 }
 
 #ifdef CONFIG_OF
-int __init early_init_dt_scan_memory_arch(unsigned long node,
-                                          const char *uname, int depth,
-                                          void *data)
-{
-        return early_init_dt_scan_memory(node, uname, depth, data);
-}
-
 void __init early_init_dt_add_memory_arch(u64 base, u64 size)
 {
         return add_memory_region(base, size, BOOT_MEM_RAM);
@@ -57,57 +47,11 @@ void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
         return __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS));
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init early_init_dt_setup_initrd_arch(u64 start, u64 end)
-{
-        initrd_start = (unsigned long)__va(start);
-        initrd_end = (unsigned long)__va(end);
-        initrd_below_start_ok = 1;
-}
-#endif
-
-int __init early_init_dt_scan_model(unsigned long node, const char *uname,
-                                    int depth, void *data)
-{
-        if (!depth) {
-                char *model = of_get_flat_dt_prop(node, "model", NULL);
-
-                if (model)
-                        mips_set_machine_name(model);
-        }
-        return 0;
-}
-
-void __init early_init_devtree(void *params)
-{
-        /* Setup flat device-tree pointer */
-        initial_boot_params = params;
-
-        /* Retrieve various informations from the /chosen node of the
-         * device-tree, including the platform type, initrd location and
-         * size, and more ...
-         */
-        of_scan_flat_dt(early_init_dt_scan_chosen, arcs_cmdline);
-
-
-        /* Scan memory nodes */
-        of_scan_flat_dt(early_init_dt_scan_root, NULL);
-        of_scan_flat_dt(early_init_dt_scan_memory_arch, NULL);
-
-        /* try to load the mips machine name */
-        of_scan_flat_dt(early_init_dt_scan_model, NULL);
-}
-
 void __init __dt_setup_arch(struct boot_param_header *bph)
 {
-        if (be32_to_cpu(bph->magic) != OF_DT_HEADER) {
-                pr_err("DTB has bad magic, ignoring builtin OF DTB\n");
-
+        if (!early_init_dt_scan(bph))
                 return;
-        }
-
-        initial_boot_params = bph;
 
-        early_init_devtree(initial_boot_params);
+        mips_set_machine_name(of_flat_dt_get_machine_name());
 }
 #endif
diff --git a/arch/mips/lantiq/prom.c b/arch/mips/lantiq/prom.c
index 49c460370285..19686c5bc5ed 100644
--- a/arch/mips/lantiq/prom.c
+++ b/arch/mips/lantiq/prom.c
@@ -14,6 +14,7 @@
 
 #include <asm/bootinfo.h>
 #include <asm/time.h>
+#include <asm/prom.h>
 
 #include <lantiq.h>
 
diff --git a/arch/mips/mti-sead3/sead3-setup.c b/arch/mips/mti-sead3/sead3-setup.c
index b5059dc899f4..928ba84c8a78 100644
--- a/arch/mips/mti-sead3/sead3-setup.c
+++ b/arch/mips/mti-sead3/sead3-setup.c
@@ -10,6 +10,8 @@
 #include <linux/of_fdt.h>
 #include <linux/bootmem.h>
 
+#include <asm/prom.h>
+
 #include <asm/mips-boards/generic.h>
 
 const char *get_system_type(void)
diff --git a/arch/mips/netlogic/xlp/dt.c b/arch/mips/netlogic/xlp/dt.c
index 88df445dda76..8316d5454b17 100644
--- a/arch/mips/netlogic/xlp/dt.c
+++ b/arch/mips/netlogic/xlp/dt.c
@@ -39,8 +39,11 @@
 #include <linux/of_platform.h>
 #include <linux/of_device.h>
 
+#include <asm/prom.h>
+
 extern u32 __dtb_xlp_evp_begin[], __dtb_xlp_svp_begin[],
         __dtb_xlp_fvp_begin[], __dtb_start[];
+static void *xlp_fdt_blob;
 
 void __init *xlp_dt_init(void *fdtp)
 {
@@ -67,19 +70,26 @@ void __init *xlp_dt_init(void *fdtp)
                         break;
                 }
         }
-        initial_boot_params = fdtp;
+        xlp_fdt_blob = fdtp;
         return fdtp;
 }
 
+void __init xlp_early_init_devtree(void)
+{
+        __dt_setup_arch(xlp_fdt_blob);
+        strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
+}
+
 void __init device_tree_init(void)
 {
         unsigned long base, size;
+        struct boot_param_header *fdtp = xlp_fdt_blob;
 
-        if (!initial_boot_params)
+        if (!fdtp)
                 return;
 
-        base = virt_to_phys((void *)initial_boot_params);
-        size = be32_to_cpu(initial_boot_params->totalsize);
+        base = virt_to_phys(fdtp);
+        size = be32_to_cpu(fdtp->totalsize);
 
         /* Before we do anything, lets reserve the dt blob */
         reserve_bootmem(base, size, BOOTMEM_DEFAULT);
diff --git a/arch/mips/netlogic/xlp/setup.c b/arch/mips/netlogic/xlp/setup.c
index 76a7131e486e..6d981bb337ec 100644
--- a/arch/mips/netlogic/xlp/setup.c
+++ b/arch/mips/netlogic/xlp/setup.c
@@ -98,7 +98,7 @@ void __init plat_mem_setup(void)
         pm_power_off    = nlm_linux_exit;
 
         /* memory and bootargs from DT */
-        early_init_devtree(initial_boot_params);
+        xlp_early_init_devtree();
 
         if (boot_mem_map.nr_map == 0) {
                 pr_info("Using DRAM BARs for memory map.\n");
diff --git a/arch/mips/pci/fixup-lantiq.c b/arch/mips/pci/fixup-lantiq.c
index 6c829df28dc7..c2ce41ea61d7 100644
--- a/arch/mips/pci/fixup-lantiq.c
+++ b/arch/mips/pci/fixup-lantiq.c
@@ -25,16 +25,5 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
 
 int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-        struct of_irq dev_irq;
-        int irq;
-
-        if (of_irq_map_pci(dev, &dev_irq)) {
-                dev_err(&dev->dev, "trying to map irq for unknown slot:%d pin:%d\n",
-                        slot, pin);
-                return 0;
-        }
-        irq = irq_create_of_mapping(dev_irq.controller, dev_irq.specifier,
-                                        dev_irq.size);
-        dev_info(&dev->dev, "SLOT:%d PIN:%d IRQ:%d\n", slot, pin, irq);
-        return irq;
+        return of_irq_parse_and_map_pci(dev, slot, pin);
 }
diff --git a/arch/mips/pci/pci-rt3883.c b/arch/mips/pci/pci-rt3883.c
index 95c9d41382e7..adeff2bfe4cd 100644
--- a/arch/mips/pci/pci-rt3883.c
+++ b/arch/mips/pci/pci-rt3883.c
@@ -583,29 +583,7 @@ err_put_intc_node:
 
 int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-        struct of_irq dev_irq;
-        int err;
-        int irq;
-
-        err = of_irq_map_pci(dev, &dev_irq);
-        if (err) {
-                pr_err("pci %s: unable to get irq map, err=%d\n",
-                       pci_name((struct pci_dev *) dev), err);
-                return 0;
-        }
-
-        irq = irq_create_of_mapping(dev_irq.controller,
-                                    dev_irq.specifier,
-                                    dev_irq.size);
-
-        if (irq == 0)
-                pr_crit("pci %s: no irq found for pin %u\n",
-                        pci_name((struct pci_dev *) dev), pin);
-        else
-                pr_info("pci %s: using irq %d for pin %u\n",
-                        pci_name((struct pci_dev *) dev), irq, pin);
-
-        return irq;
+        return of_irq_parse_and_map_pci(dev, slot, pin);
 }
 
 int pcibios_plat_dev_init(struct pci_dev *dev)
diff --git a/arch/mips/ralink/of.c b/arch/mips/ralink/of.c
index 15f21ea96121..eccc5526155e 100644
--- a/arch/mips/ralink/of.c
+++ b/arch/mips/ralink/of.c
@@ -21,6 +21,7 @@
 #include <asm/reboot.h>
 #include <asm/bootinfo.h>
 #include <asm/addrspace.h>
+#include <asm/prom.h>
 
 #include "common.h"