alistair23-linux/arch/microblaze/kernel/prom_parse.c
Michal Simek d64af918fe microblaze: Do not use module.h in files which are not modules
Based on the patch:
"lib: reduce the use of module.h wherever possible"
(sha1: 8bc3bcc93a)
fix all microblaze files which are not modules.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2013-02-12 11:24:45 +01:00

36 lines
909 B
C

#undef DEBUG
#include <linux/export.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/ioport.h>
#include <linux/etherdevice.h>
#include <linux/of_address.h>
#include <asm/prom.h>
void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
unsigned long *busno, unsigned long *phys, unsigned long *size)
{
const u32 *dma_window;
u32 cells;
const unsigned char *prop;
dma_window = dma_window_prop;
/* busno is always one cell */
*busno = *(dma_window++);
prop = of_get_property(dn, "ibm,#dma-address-cells", NULL);
if (!prop)
prop = of_get_property(dn, "#address-cells", NULL);
cells = prop ? *(u32 *)prop : of_n_addr_cells(dn);
*phys = of_read_number(dma_window, cells);
dma_window += cells;
prop = of_get_property(dn, "ibm,#dma-size-cells", NULL);
cells = prop ? *(u32 *)prop : of_n_size_cells(dn);
*size = of_read_number(dma_window, cells);
}