Contributors: 8
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Jeremy Kerr |
104 |
61.90% |
2 |
15.38% |
| Anton Blanchard |
20 |
11.90% |
1 |
7.69% |
| Benjamin Herrenschmidt |
17 |
10.12% |
3 |
23.08% |
| Will Schmidt |
15 |
8.93% |
1 |
7.69% |
| Stephen Rothwell |
5 |
2.98% |
3 |
23.08% |
| Timur Tabi |
3 |
1.79% |
1 |
7.69% |
| Grant C. Likely |
3 |
1.79% |
1 |
7.69% |
| Greg Kroah-Hartman |
1 |
0.60% |
1 |
7.69% |
| Total |
168 |
|
13 |
|
// SPDX-License-Identifier: GPL-2.0
#undef DEBUG
#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 __be32 *dma_window,
unsigned long *busno, unsigned long *phys,
unsigned long *size)
{
u32 cells;
const __be32 *prop;
/* busno is always one cell */
*busno = of_read_number(dma_window, 1);
dma_window++;
prop = of_get_property(dn, "ibm,#dma-address-cells", NULL);
if (!prop)
prop = of_get_property(dn, "#address-cells", NULL);
cells = prop ? of_read_number(prop, 1) : 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 ? of_read_number(prop, 1) : of_n_size_cells(dn);
*size = of_read_number(dma_window, cells);
}