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[PATCH V2 7/7] MIPS: BCM63XX: Create platform_device for USBD

To: ralf@linux-mips.org
Subject: [PATCH V2 7/7] MIPS: BCM63XX: Create platform_device for USBD
From: Kevin Cernekee <cernekee@gmail.com>
Date: Sun, 08 Jul 2012 19:41:21 -0700
Cc: <ffainelli@freebox.fr>, <mbizon@freebox.fr>, <jonas.gorski@gmail.com>, <linux-mips@linux-mips.org>
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Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
---
 arch/mips/bcm63xx/Makefile                         |  2 +-
 arch/mips/bcm63xx/boards/board_bcm963xx.c          | 10 +++
 arch/mips/bcm63xx/dev-usb-usbd.c                   | 72 ++++++++++++++++++++++
 .../asm/mach-bcm63xx/bcm63xx_dev_usb_usbd.h        | 17 +++++
 .../mips/include/asm/mach-bcm63xx/board_bcm963xx.h |  5 ++
 5 files changed, 105 insertions(+), 1 deletion(-)
 create mode 100644 arch/mips/bcm63xx/dev-usb-usbd.c
 create mode 100644 arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_usbd.h

V2:

Use the newly changed IRQ names.

Use platform_device ID -1, as is customary on UDC drivers.

diff --git a/arch/mips/bcm63xx/Makefile b/arch/mips/bcm63xx/Makefile
index 833af72..9bbb30a 100644
--- a/arch/mips/bcm63xx/Makefile
+++ b/arch/mips/bcm63xx/Makefile
@@ -1,6 +1,6 @@
 obj-y          += clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \
                   dev-dsp.o dev-enet.o dev-flash.o dev-pcmcia.o dev-rng.o \
-                  dev-spi.o dev-uart.o dev-wdt.o
+                  dev-spi.o dev-uart.o dev-wdt.o dev-usb-usbd.o
 obj-$(CONFIG_EARLY_PRINTK)     += early_printk.o
 
 obj-y          += boards/
diff --git a/arch/mips/bcm63xx/boards/board_bcm963xx.c 
b/arch/mips/bcm63xx/boards/board_bcm963xx.c
index feb0525..ea4ea77 100644
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
@@ -24,6 +24,7 @@
 #include <bcm63xx_dev_flash.h>
 #include <bcm63xx_dev_pcmcia.h>
 #include <bcm63xx_dev_spi.h>
+#include <bcm63xx_dev_usb_usbd.h>
 #include <board_bcm963xx.h>
 
 #define PFX    "board_bcm963xx: "
@@ -42,6 +43,12 @@ static struct board_info __initdata board_96328avng = {
 
        .has_uart0                      = 1,
        .has_pci                        = 1,
+       .has_usbd                       = 0,
+
+       .usbd = {
+               .use_fullspeed          = 0,
+               .port_no                = 0,
+       },
 
        .leds = {
                {
@@ -888,6 +895,9 @@ int __init board_register_devices(void)
            !board_get_mac_address(board.enet1.mac_addr))
                bcm63xx_enet_register(1, &board.enet1);
 
+       if (board.has_usbd)
+               bcm63xx_usbd_register(&board.usbd);
+
        if (board.has_dsp)
                bcm63xx_dsp_register(&board.dsp);
 
diff --git a/arch/mips/bcm63xx/dev-usb-usbd.c b/arch/mips/bcm63xx/dev-usb-usbd.c
new file mode 100644
index 0000000..cfad216
--- /dev/null
+++ b/arch/mips/bcm63xx/dev-usb-usbd.c
@@ -0,0 +1,72 @@
+/*
+ * 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) 2008 Maxime Bizon <mbizon@freebox.fr>
+ * Copyright (C) 2012 Kevin Cernekee <cernekee@gmail.com>
+ * Copyright (C) 2012 Broadcom Corporation
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <bcm63xx_cpu.h>
+#include <bcm63xx_dev_usb_usbd.h>
+
+static struct resource usbd_resources[] = {
+       {
+               .start          = -1, /* filled at runtime */
+               .end            = -1, /* filled at runtime */
+               .flags          = IORESOURCE_MEM,
+       },
+       {
+               .start          = -1, /* filled at runtime */
+               .end            = -1, /* filled at runtime */
+               .flags          = IORESOURCE_MEM,
+       },
+       {
+               .start          = -1, /* filled at runtime */
+               .flags          = IORESOURCE_IRQ,
+       },
+       {
+               .start          = -1, /* filled at runtime */
+               .end            = -1, /* filled at runtime */
+               .flags          = IORESOURCE_IRQ,
+       },
+};
+
+static u64 usbd_dmamask = DMA_BIT_MASK(32);
+
+static struct platform_device bcm63xx_usbd_device = {
+       .name           = "bcm63xx_udc",
+       .id             = -1,
+       .num_resources  = ARRAY_SIZE(usbd_resources),
+       .resource       = usbd_resources,
+       .dev            = {
+               .dma_mask               = &usbd_dmamask,
+               .coherent_dma_mask      = DMA_BIT_MASK(32),
+       },
+};
+
+int __init bcm63xx_usbd_register(const struct bcm63xx_usbd_platform_data *pd)
+{
+       if (!BCMCPU_IS_6328() && !BCMCPU_IS_6368())
+               return 0;
+
+       usbd_resources[0].start = bcm63xx_regset_address(RSET_USBD);
+       usbd_resources[0].end = usbd_resources[0].start + RSET_USBD_SIZE - 1;
+
+       usbd_resources[1].start = bcm63xx_regset_address(RSET_USBDMA);
+       usbd_resources[1].end = usbd_resources[1].start + RSET_USBDMA_SIZE - 1;
+
+       usbd_resources[2].start = bcm63xx_get_irq_number(IRQ_USBD);
+
+       usbd_resources[3].start = bcm63xx_get_irq_number(IRQ_USBD_RXDMA0);
+       usbd_resources[3].end = bcm63xx_get_irq_number(IRQ_USBD_TXDMA2);
+
+       platform_device_add_data(&bcm63xx_usbd_device, pd, sizeof(*pd));
+
+       return platform_device_register(&bcm63xx_usbd_device);
+}
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_usbd.h 
b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_usbd.h
new file mode 100644
index 0000000..5d6d698
--- /dev/null
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_usbd.h
@@ -0,0 +1,17 @@
+#ifndef BCM63XX_DEV_USB_USBD_H_
+#define BCM63XX_DEV_USB_USBD_H_
+
+/*
+ * usb device platform data
+ */
+struct bcm63xx_usbd_platform_data {
+       /* board can only support full speed (USB 1.1) */
+       int use_fullspeed;
+
+       /* 0-based port index, for chips with >1 USB PHY */
+       int port_no;
+};
+
+int bcm63xx_usbd_register(const struct bcm63xx_usbd_platform_data *pd);
+
+#endif /* BCM63XX_DEV_USB_USBD_H_ */
diff --git a/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h 
b/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
index 474daaa..b0dd4bb 100644
--- a/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
+++ b/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
@@ -5,6 +5,7 @@
 #include <linux/gpio.h>
 #include <linux/leds.h>
 #include <bcm63xx_dev_enet.h>
+#include <bcm63xx_dev_usb_usbd.h>
 #include <bcm63xx_dev_dsp.h>
 
 /*
@@ -44,6 +45,7 @@ struct board_info {
        unsigned int    has_pccard:1;
        unsigned int    has_ohci0:1;
        unsigned int    has_ehci0:1;
+       unsigned int    has_usbd:1;
        unsigned int    has_dsp:1;
        unsigned int    has_uart0:1;
        unsigned int    has_uart1:1;
@@ -52,6 +54,9 @@ struct board_info {
        struct bcm63xx_enet_platform_data enet0;
        struct bcm63xx_enet_platform_data enet1;
 
+       /* USB config */
+       struct bcm63xx_usbd_platform_data usbd;
+
        /* DSP config */
        struct bcm63xx_dsp_platform_data dsp;
 
-- 
1.7.11.1


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