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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-29 21:27:19 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-29 21:27:19 -0400
commit7e5b2db77b05746613516599c916a8cc2e321077 (patch)
treec3ec333ff7b77bcc8e456a3a3d19bf20f5c651b8 /arch/mips/pci/pci.c
parent227d1e4319ffd8729781941d92f4ae4d85beecd9 (diff)
parentc819baf31f5f91fbb06b2c93de2d5b8c8d096f3f (diff)
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle: "The whole series has been sitting in -next for quite a while with no complaints. The last change to the series was before the weekend the removal of an SPI patch which Grant - even though previously acked by himself - appeared to raise objections. So I removed it until the situation is clarified. Other than that all the patches have the acks from their respective maintainers, all MIPS and x86 defconfigs are building fine and I'm not aware of any problems introduced by this series. Among the key features for this patch series is a sizable patchset for Lantiq which among other things introduces support for Lantiq's flagship product, the FALCON SOC. It also means that the opensource developers behind this patchset have overtaken Lantiq's competing inhouse development team that was working behind closed doors. Less noteworthy the ath79 patchset which adds support for a few more chip variants, cleanups and fixes. Finally the usual dose of tweaking of generic code." Fix up trivial conflicts in arch/mips/lantiq/xway/gpio_{ebu,stp}.c where printk spelling fixes clashed with file move and eventual removal of the printk. * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (81 commits) MIPS: lantiq: remove orphaned code MIPS: Remove all -Wall and almost all -Werror usage from arch/mips. MIPS: lantiq: implement support for FALCON soc MTD: MIPS: lantiq: verify that the NOR interface is available on falcon soc MTD: MIPS: lantiq: implement OF support watchdog: MIPS: lantiq: implement OF support and minor fixes SERIAL: MIPS: lantiq: implement OF support GPIO: MIPS: lantiq: convert gpio-stp-xway to OF GPIO: MIPS: lantiq: convert gpio-mm-lantiq to OF and of_mm_gpio GPIO: MIPS: lantiq: move gpio-stp and gpio-ebu to the subsystem folder MIPS: pci: convert lantiq driver to OF MIPS: lantiq: convert dma to platform driver MIPS: lantiq: implement support for clkdev api MIPS: lantiq: drop ltq_gpio_request() and gpio_to_irq() OF: MIPS: lantiq: implement irq_domain support OF: MIPS: lantiq: implement OF support MIPS: lantiq: drop mips_machine support OF: PCI: const usage needed by MIPS MIPS: Cavium: Remove smp_reserve_lock. MIPS: Move cache setup to setup_arch(). ...
Diffstat (limited to 'arch/mips/pci/pci.c')
-rw-r--r--arch/mips/pci/pci.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index 0514866fa925..271e8c4a54c7 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -16,6 +16,7 @@
16#include <linux/init.h> 16#include <linux/init.h>
17#include <linux/types.h> 17#include <linux/types.h>
18#include <linux/pci.h> 18#include <linux/pci.h>
19#include <linux/of_address.h>
19 20
20#include <asm/cpu-info.h> 21#include <asm/cpu-info.h>
21 22
@@ -114,9 +115,63 @@ static void __devinit pcibios_scanbus(struct pci_controller *hose)
114 pci_bus_assign_resources(bus); 115 pci_bus_assign_resources(bus);
115 pci_enable_bridges(bus); 116 pci_enable_bridges(bus);
116 } 117 }
118 bus->dev.of_node = hose->of_node;
117 } 119 }
118} 120}
119 121
122#ifdef CONFIG_OF
123void __devinit pci_load_of_ranges(struct pci_controller *hose,
124 struct device_node *node)
125{
126 const __be32 *ranges;
127 int rlen;
128 int pna = of_n_addr_cells(node);
129 int np = pna + 5;
130
131 pr_info("PCI host bridge %s ranges:\n", node->full_name);
132 ranges = of_get_property(node, "ranges", &rlen);
133 if (ranges == NULL)
134 return;
135 hose->of_node = node;
136
137 while ((rlen -= np * 4) >= 0) {
138 u32 pci_space;
139 struct resource *res = NULL;
140 u64 addr, size;
141
142 pci_space = be32_to_cpup(&ranges[0]);
143 addr = of_translate_address(node, ranges + 3);
144 size = of_read_number(ranges + pna + 3, 2);
145 ranges += np;
146 switch ((pci_space >> 24) & 0x3) {
147 case 1: /* PCI IO space */
148 pr_info(" IO 0x%016llx..0x%016llx\n",
149 addr, addr + size - 1);
150 hose->io_map_base =
151 (unsigned long)ioremap(addr, size);
152 res = hose->io_resource;
153 res->flags = IORESOURCE_IO;
154 break;
155 case 2: /* PCI Memory space */
156 case 3: /* PCI 64 bits Memory space */
157 pr_info(" MEM 0x%016llx..0x%016llx\n",
158 addr, addr + size - 1);
159 res = hose->mem_resource;
160 res->flags = IORESOURCE_MEM;
161 break;
162 }
163 if (res != NULL) {
164 res->start = addr;
165 res->name = node->full_name;
166 res->end = res->start + size - 1;
167 res->parent = NULL;
168 res->sibling = NULL;
169 res->child = NULL;
170 }
171 }
172}
173#endif
174
120static DEFINE_MUTEX(pci_scan_mutex); 175static DEFINE_MUTEX(pci_scan_mutex);
121 176
122void __devinit register_pci_controller(struct pci_controller *hose) 177void __devinit register_pci_controller(struct pci_controller *hose)