1 /*
2 * Broadcom BCM63xx VoIP DSP registration
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 *
8 * Copyright (C) 2009 Florian Fainelli <florian@openwrt.org>
9 */
10
11 #include <linux/init.h>
12 #include <linux/kernel.h>
13 #include <linux/platform_device.h>
14
15 #include <bcm63xx_cpu.h>
16 #include <bcm63xx_dev_dsp.h>
17 #include <bcm63xx_regs.h>
18 #include <bcm63xx_io.h>
19
20 static struct resource voip_dsp_resources[] = {
21 {
22 .start = -1, /* filled at runtime */
23 .end = -1, /* filled at runtime */
24 .flags = IORESOURCE_MEM,
25 },
26 {
27 .start = -1, /* filled at runtime */
28 .flags = IORESOURCE_IRQ,
29 },
30 };
31
32 static struct platform_device bcm63xx_voip_dsp_device = {
33 .name = "bcm63xx-voip-dsp",
34 .id = 0,
35 .num_resources = ARRAY_SIZE(voip_dsp_resources),
36 .resource = voip_dsp_resources,
37 };
38
bcm63xx_dsp_register(const struct bcm63xx_dsp_platform_data * pd)39 int __init bcm63xx_dsp_register(const struct bcm63xx_dsp_platform_data *pd)
40 {
41 struct bcm63xx_dsp_platform_data *dpd;
42 u32 val;
43
44 /* Get the memory window */
45 val = bcm_mpi_readl(MPI_CSBASE_REG(pd->cs - 1));
46 val &= MPI_CSBASE_BASE_MASK;
47 voip_dsp_resources[0].start = val;
48 voip_dsp_resources[0].end = val + 0xFFFFFFF;
49 voip_dsp_resources[1].start = pd->ext_irq;
50
51 /* copy given platform data */
52 dpd = bcm63xx_voip_dsp_device.dev.platform_data;
53 memcpy(dpd, pd, sizeof (*pd));
54
55 return platform_device_register(&bcm63xx_voip_dsp_device);
56 }
57