From c33ead0f7c493581d316afb48c2d300c16cd51a6 Mon Sep 17 00:00:00 2001
From: florian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Wed, 1 Jul 2009 21:00:41 +0000
Subject: [brcm63xx] add the infrastructure to use a MPI/GPIO connected VoIP
 DSP

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@16650 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 .../brcm63xx/files/arch/mips/bcm63xx/dev-dsp.c     | 56 ++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 target/linux/brcm63xx/files/arch/mips/bcm63xx/dev-dsp.c

(limited to 'target/linux/brcm63xx/files/arch/mips/bcm63xx/dev-dsp.c')

diff --git a/target/linux/brcm63xx/files/arch/mips/bcm63xx/dev-dsp.c b/target/linux/brcm63xx/files/arch/mips/bcm63xx/dev-dsp.c
new file mode 100644
index 000000000..08a2f75c2
--- /dev/null
+++ b/target/linux/brcm63xx/files/arch/mips/bcm63xx/dev-dsp.c
@@ -0,0 +1,56 @@
+/*
+ * Broadcom BCM63xx VoIP DSP registration
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2009 Florian Fainelli <florian@openwrt.org> 
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+
+#include <bcm63xx_cpu.h>
+#include <bcm63xx_dev_dsp.h>
+#include <bcm63xx_regs.h>
+#include <bcm63xx_io.h>
+
+static struct resource voip_dsp_resources[] = {
+	{
+		.start		= -1, /* filled at runtime */
+		.end		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device bcm63xx_voip_dsp_device = {
+	.name		= "bcm63xx-voip-dsp",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(voip_dsp_resources),
+	.resource	= voip_dsp_resources,
+};
+
+int __init bcm63xx_dsp_register(const struct bcm63xx_dsp_platform_data *pd)
+{
+	struct bcm63xx_dsp_platform_data *dpd;
+	u32 val;
+
+	/* Get the memory window */
+	val = bcm_mpi_readl(MPI_CSBASE_REG(pd->cs - 1));
+	val &= MPI_CSBASE_BASE_MASK;
+	voip_dsp_resources[0].start = val;
+	voip_dsp_resources[0].end = val + 0xFFFFFFF;
+	voip_dsp_resources[1].start = pd->ext_irq;
+
+	/* copy given platform data */
+	dpd = bcm63xx_voip_dsp_device.dev.platform_data;
+	memcpy(dpd, pd, sizeof (*pd));
+
+	return platform_device_register(&bcm63xx_voip_dsp_device);
+}
-- 
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