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/Ethereal-msm8939-beta9/arch/mips/bcm63xx/dev-dsp.c

https://bitbucket.org/MilosStamenkovic95/etherealos
C | 56 lines | 37 code | 8 blank | 11 comment | 0 complexity | 2e9ec14f0e5345d41904c9c0e0363ecb MD5 | raw file
 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
20static 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
32static struct platform_device bcm63xx_voip_dsp_device = {
33	.name		= "bcm63xx-voip-dsp",
34	.id		= -1,
35	.num_resources	= ARRAY_SIZE(voip_dsp_resources),
36	.resource	= voip_dsp_resources,
37};
38
39int __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}