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authorFlorian Fainelli <florian@openwrt.org>2009-07-01 21:00:41 +0000
committerFlorian Fainelli <florian@openwrt.org>2009-07-01 21:00:41 +0000
commit0bda624fc7068c5090c97a6cacd0f9617d9c57b5 (patch)
tree1a667a98d90555ead32cd514e521d13d7c951536 /target/linux/brcm63xx/files/arch
parentd97b12f8b7a274a104cca079d235cddddb0f4a27 (diff)
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add the infrastructure to use a MPI/GPIO connected VoIP DSP
SVN-Revision: 16650
Diffstat (limited to 'target/linux/brcm63xx/files/arch')
-rw-r--r--target/linux/brcm63xx/files/arch/mips/bcm63xx/Makefile1
-rw-r--r--target/linux/brcm63xx/files/arch/mips/bcm63xx/boards/board_bcm963xx.c23
-rw-r--r--target/linux/brcm63xx/files/arch/mips/bcm63xx/dev-dsp.c56
3 files changed, 79 insertions, 1 deletions
diff --git a/target/linux/brcm63xx/files/arch/mips/bcm63xx/Makefile b/target/linux/brcm63xx/files/arch/mips/bcm63xx/Makefile
index d121274cc3..b9343a8d6c 100644
--- a/target/linux/brcm63xx/files/arch/mips/bcm63xx/Makefile
+++ b/target/linux/brcm63xx/files/arch/mips/bcm63xx/Makefile
@@ -7,6 +7,7 @@ obj-y += dev-usb-udc.o
obj-y += dev-enet.o
obj-y += dev-wdt.o
obj-y += dev-spi.o
+obj-y += dev-dsp.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
obj-y += boards/
diff --git a/target/linux/brcm63xx/files/arch/mips/bcm63xx/boards/board_bcm963xx.c b/target/linux/brcm63xx/files/arch/mips/bcm63xx/boards/board_bcm963xx.c
index 18389983a7..b9ff9759eb 100644
--- a/target/linux/brcm63xx/files/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/target/linux/brcm63xx/files/arch/mips/bcm63xx/boards/board_bcm963xx.c
@@ -24,6 +24,7 @@
#include <bcm63xx_dev_uart.h>
#include <bcm63xx_dev_wdt.h>
#include <bcm63xx_dev_enet.h>
+#include <bcm63xx_dev_dsp.h>
#include <bcm63xx_dev_pcmcia.h>
#include <bcm63xx_dev_usb_ohci.h>
#include <bcm63xx_dev_usb_ehci.h>
@@ -114,6 +115,14 @@ static struct board_info __initdata board_96348gw_10 = {
.has_ohci0 = 1,
.has_pccard = 1,
.has_ehci0 = 1,
+
+ .has_dsp = 1,
+ .dsp = {
+ .gpio_rst = 6,
+ .gpio_int = 34,
+ .cs = 2,
+ .ext_irq = 2,
+ },
};
static struct board_info __initdata board_96348gw_11 = {
@@ -157,7 +166,15 @@ static struct board_info __initdata board_96348gw = {
.force_duplex_full = 1,
},
- .has_ohci0 = 1,
+ .has_ohci0 = 1,
+ .has_dsp = 1,
+
+ .dsp = {
+ .gpio_rst = 6,
+ .gpio_int = 34,
+ .ext_irq = 2,
+ .cs = 2,
+ },
};
static struct board_info __initdata board_FAST2404 = {
@@ -559,6 +576,10 @@ int __init board_register_devices(void)
if (board.has_udc0)
bcm63xx_udc_register();
+
+ if (board.has_dsp)
+ bcm63xx_dsp_register(&board.dsp);
+
/* Generate MAC address for WLAN and
* register our SPROM */
#ifdef CONFIG_PCI
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 0000000000..08a2f75c2a
--- /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);
+}