#include <linux/of_device.h>
#include <linux/of_platform.h>
+#include "of_device_common.h"
+
void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned long size, char *name)
{
unsigned long ret = res->start + offset;
}
EXPORT_SYMBOL(of_iounmap);
-static int node_match(struct device *dev, void *data)
-{
- struct of_device *op = to_of_device(dev);
- struct device_node *dp = data;
-
- return (op->node == dp);
-}
-
-struct of_device *of_find_device_by_node(struct device_node *dp)
-{
- struct device *dev = bus_find_device(&of_platform_bus_type, NULL,
- dp, node_match);
-
- if (dev)
- return to_of_device(dev);
-
- return NULL;
-}
-EXPORT_SYMBOL(of_find_device_by_node);
-
-unsigned int irq_of_parse_and_map(struct device_node *node, int index)
-{
- struct of_device *op = of_find_device_by_node(node);
-
- if (!op || index >= op->num_irqs)
- return 0;
-
- return op->irqs[index];
-}
-EXPORT_SYMBOL(irq_of_parse_and_map);
-
-/* Take the archdata values for IOMMU, STC, and HOSTDATA found in
- * BUS and propagate to all child of_device objects.
- */
-void of_propagate_archdata(struct of_device *bus)
-{
- struct dev_archdata *bus_sd = &bus->dev.archdata;
- struct device_node *bus_dp = bus->node;
- struct device_node *dp;
-
- for (dp = bus_dp->child; dp; dp = dp->sibling) {
- struct of_device *op = of_find_device_by_node(dp);
-
- op->dev.archdata.iommu = bus_sd->iommu;
- op->dev.archdata.stc = bus_sd->stc;
- op->dev.archdata.host_controller = bus_sd->host_controller;
- op->dev.archdata.numa_node = bus_sd->numa_node;
-
- if (dp->child)
- of_propagate_archdata(op);
- }
-}
-
-struct bus_type of_platform_bus_type;
-EXPORT_SYMBOL(of_platform_bus_type);
-
-static inline u64 of_read_addr(const u32 *cell, int size)
-{
- u64 r = 0;
- while (size--)
- r = (r << 32) | *(cell++);
- return r;
-}
-
-static void get_cells(struct device_node *dp, int *addrc, int *sizec)
-{
- if (addrc)
- *addrc = of_n_addr_cells(dp);
- if (sizec)
- *sizec = of_n_size_cells(dp);
-}
-
-/* Max address size we deal with */
-#define OF_MAX_ADDR_CELLS 4
-
-struct of_bus {
- const char *name;
- const char *addr_prop_name;
- int (*match)(struct device_node *parent);
- void (*count_cells)(struct device_node *child,
- int *addrc, int *sizec);
- int (*map)(u32 *addr, const u32 *range,
- int na, int ns, int pna);
- unsigned long (*get_flags)(const u32 *addr, unsigned long);
-};
-
-/*
- * Default translator (generic bus)
- */
-
-static void of_bus_default_count_cells(struct device_node *dev,
- int *addrc, int *sizec)
-{
- get_cells(dev, addrc, sizec);
-}
-
-/* Make sure the least significant 64-bits are in-range. Even
- * for 3 or 4 cell values it is a good enough approximation.
- */
-static int of_out_of_range(const u32 *addr, const u32 *base,
- const u32 *size, int na, int ns)
-{
- u64 a = of_read_addr(addr, na);
- u64 b = of_read_addr(base, na);
-
- if (a < b)
- return 1;
-
- b += of_read_addr(size, ns);
- if (a >= b)
- return 1;
-
- return 0;
-}
-
-static int of_bus_default_map(u32 *addr, const u32 *range,
- int na, int ns, int pna)
-{
- u32 result[OF_MAX_ADDR_CELLS];
- int i;
-
- if (ns > 2) {
- printk("of_device: Cannot handle size cells (%d) > 2.", ns);
- return -EINVAL;
- }
-
- if (of_out_of_range(addr, range, range + na + pna, na, ns))
- return -EINVAL;
-
- /* Start with the parent range base. */
- memcpy(result, range + na, pna * 4);
-
- /* Add in the child address offset. */
- for (i = 0; i < na; i++)
- result[pna - 1 - i] +=
- (addr[na - 1 - i] -
- range[na - 1 - i]);
-
- memcpy(addr, result, pna * 4);
-
- return 0;
-}
-
-static unsigned long of_bus_default_get_flags(const u32 *addr, unsigned long flags)
-{
- if (flags)
- return flags;
- return IORESOURCE_MEM;
-}
-
/*
* PCI bus specific translator
*/
return flags;
}
-/*
- * SBUS bus specific translator
- */
-
-static int of_bus_sbus_match(struct device_node *np)
-{
- struct device_node *dp = np;
-
- while (dp) {
- if (!strcmp(dp->name, "sbus") ||
- !strcmp(dp->name, "sbi"))
- return 1;
-
- /* Have a look at use_1to1_mapping(). We're trying
- * to match SBUS if that's the top-level bus and we
- * don't have some intervening real bus that provides
- * ranges based translations.
- */
- if (of_find_property(dp, "ranges", NULL) != NULL)
- break;
-
- dp = dp->parent;
- }
-
- return 0;
-}
-
-static void of_bus_sbus_count_cells(struct device_node *child,
- int *addrc, int *sizec)
-{
- if (addrc)
- *addrc = 2;
- if (sizec)
- *sizec = 1;
-}
-
/*
* FHC/Central bus specific translator.
*
git.openpandora.org / pandora-kernel.git / blobdiff