diff options
Diffstat (limited to 'arch/mips/bcm63xx/dev-dsp.c')
-rw-r--r-- | arch/mips/bcm63xx/dev-dsp.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/mips/bcm63xx/dev-dsp.c b/arch/mips/bcm63xx/dev-dsp.c new file mode 100644 index 000000000000..da46d1d3c77c --- /dev/null +++ b/arch/mips/bcm63xx/dev-dsp.c | |||
@@ -0,0 +1,56 @@ | |||
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 | |||
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 | } | ||