Subject: [PATCH V2 2/7] MIPS: BCM63XX: Move DMA descriptor definition into common header file

From: Kevin Cernekee <[email-masked]>
Date: Sun, 08 Jul 2012 19:41:18 -0700

The "IUDMA" engine used by bcm63xx_enet is also used by other blocks,
such as the USB 2.0 device.  Move the definitions into a common file so
that they do not need to be duplicated in each driver.

Signed-off-by: Kevin Cernekee <[email-masked]>
---
 arch/mips/include/asm/mach-bcm63xx/bcm63xx_iudma.h | 34 ++++++++++++++++++++++
 drivers/net/ethernet/broadcom/bcm63xx_enet.h       | 30 +------------------
 2 files changed, 35 insertions(+), 29 deletions(-)
 create mode 100644 arch/mips/include/asm/mach-bcm63xx/bcm63xx_iudma.h

V2:

Move this into a separate, non-enet-related header file.

I'll submit another patch to rename "enet" / "DMADESC" to "IUDMA" after
Maxime's enetsw patches are merged.

diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_iudma.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_iudma.h
new file mode 100644
index 0000000..358cf28
--- /dev/null
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_iudma.h
@@ -0,0 +1,34 @@
+#ifndef BCM63XX_IUDMA_H_
+#define BCM63XX_IUDMA_H_
+
+#include <linux/types.h>
+
+/*
+ * rx/tx dma descriptor
+ */
+struct bcm_enet_desc {
+	u32 len_stat;
+	u32 address;
+};
+
+#define DMADESC_LENGTH_SHIFT	16
+#define DMADESC_LENGTH_MASK	(0xfff << DMADESC_LENGTH_SHIFT)
+#define DMADESC_OWNER_MASK	(1 << 15)
+#define DMADESC_EOP_MASK	(1 << 14)
+#define DMADESC_SOP_MASK	(1 << 13)
+#define DMADESC_ESOP_MASK	(DMADESC_EOP_MASK | DMADESC_SOP_MASK)
+#define DMADESC_WRAP_MASK	(1 << 12)
+
+#define DMADESC_UNDER_MASK	(1 << 9)
+#define DMADESC_APPEND_CRC	(1 << 8)
+#define DMADESC_OVSIZE_MASK	(1 << 4)
+#define DMADESC_RXER_MASK	(1 << 2)
+#define DMADESC_CRC_MASK	(1 << 1)
+#define DMADESC_OV_MASK		(1 << 0)
+#define DMADESC_ERR_MASK	(DMADESC_UNDER_MASK | \
+				DMADESC_OVSIZE_MASK | \
+				DMADESC_RXER_MASK | \
+				DMADESC_CRC_MASK | \
+				DMADESC_OV_MASK)
+
+#endif /* ! BCM63XX_IUDMA_H_ */
diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.h b/drivers/net/ethernet/broadcom/bcm63xx_enet.h
index 0e3048b..133d585 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.h
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.h
@@ -10,6 +10,7 @@
 #include <bcm63xx_regs.h>
 #include <bcm63xx_irq.h>
 #include <bcm63xx_io.h>
+#include <bcm63xx_iudma.h>
 
 /* default number of descriptor */
 #define BCMENET_DEF_RX_DESC	64
@@ -31,35 +32,6 @@
 #define BCMENET_MAX_MTU		2046
 
 /*
- * rx/tx dma descriptor
- */
-struct bcm_enet_desc {
-	u32 len_stat;
-	u32 address;
-};
-
-#define DMADESC_LENGTH_SHIFT	16
-#define DMADESC_LENGTH_MASK	(0xfff << DMADESC_LENGTH_SHIFT)
-#define DMADESC_OWNER_MASK	(1 << 15)
-#define DMADESC_EOP_MASK	(1 << 14)
-#define DMADESC_SOP_MASK	(1 << 13)
-#define DMADESC_ESOP_MASK	(DMADESC_EOP_MASK | DMADESC_SOP_MASK)
-#define DMADESC_WRAP_MASK	(1 << 12)
-
-#define DMADESC_UNDER_MASK	(1 << 9)
-#define DMADESC_APPEND_CRC	(1 << 8)
-#define DMADESC_OVSIZE_MASK	(1 << 4)
-#define DMADESC_RXER_MASK	(1 << 2)
-#define DMADESC_CRC_MASK	(1 << 1)
-#define DMADESC_OV_MASK		(1 << 0)
-#define DMADESC_ERR_MASK	(DMADESC_UNDER_MASK | \
-				DMADESC_OVSIZE_MASK | \
-				DMADESC_RXER_MASK | \
-				DMADESC_CRC_MASK | \
-				DMADESC_OV_MASK)
-
-
-/*
  * MIB Counters register definitions
 */
 #define ETH_MIB_TX_GD_OCTETS			0
-- 
1.7.11.1

---

From: Kevin Cernekee <[email-masked]>
Date: Sun, 08 Jul 2012 19:41:19 -0700

Signed-off-by: Kevin Cernekee <[email-masked]>
---
 arch/mips/include/asm/mach-bcm63xx/bcm63xx_iudma.h |  4 ++++
 arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h  | 12 ++++++++++--
 2 files changed, 14 insertions(+), 2 deletions(-)

V2:

These go into bcm63xx_iudma.h now; see previous post.

Add BUFHALT bit.

Use ENETDMAC_* instead of ENETDMA_* where warranted (the constants are
identical, name change only).

diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_iudma.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_iudma.h
index 358cf28..a5bbff3 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_iudma.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_iudma.h
@@ -11,6 +11,7 @@ struct bcm_enet_desc {
 	u32 address;
 };
 
+/* control */
 #define DMADESC_LENGTH_SHIFT	16
 #define DMADESC_LENGTH_MASK	(0xfff << DMADESC_LENGTH_SHIFT)
 #define DMADESC_OWNER_MASK	(1 << 15)
@@ -18,7 +19,10 @@ struct bcm_enet_desc {
 #define DMADESC_SOP_MASK	(1 << 13)
 #define DMADESC_ESOP_MASK	(DMADESC_EOP_MASK | DMADESC_SOP_MASK)
 #define DMADESC_WRAP_MASK	(1 << 12)
+#define DMADESC_USB_NOZERO_MASK	(1 << 1)
+#define DMADESC_USB_ZERO_MASK	(1 << 0)
 
+/* status */
 #define DMADESC_UNDER_MASK	(1 << 9)
 #define DMADESC_APPEND_CRC	(1 << 8)
 #define DMADESC_OVSIZE_MASK	(1 << 4)
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
index 4ccc2a7..7a10112 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
@@ -670,6 +670,12 @@
 #define ENETDMA_BUFALLOC_FORCE_SHIFT	31
 #define ENETDMA_BUFALLOC_FORCE_MASK	(1 << ENETDMA_BUFALLOC_FORCE_SHIFT)
 
+/* Global interrupt status */
+#define ENETDMA_GLB_IRQSTAT_REG		(0x40)
+
+/* Global interrupt mask */
+#define ENETDMA_GLB_IRQMASK_REG		(0x44)
+
 /* Channel Configuration register */
 #define ENETDMA_CHANCFG_REG(x)		(0x100 + (x) * 0x10)
 #define ENETDMA_CHANCFG_EN_SHIFT	0
@@ -709,9 +715,11 @@
 /* Channel Configuration register */
 #define ENETDMAC_CHANCFG_REG(x)		((x) * 0x10)
 #define ENETDMAC_CHANCFG_EN_SHIFT	0
-#define ENETDMAC_CHANCFG_EN_MASK	(1 << ENETDMA_CHANCFG_EN_SHIFT)
+#define ENETDMAC_CHANCFG_EN_MASK	(1 << ENETDMAC_CHANCFG_EN_SHIFT)
 #define ENETDMAC_CHANCFG_PKTHALT_SHIFT	1
-#define ENETDMAC_CHANCFG_PKTHALT_MASK	(1 << ENETDMA_CHANCFG_PKTHALT_SHIFT)
+#define ENETDMAC_CHANCFG_PKTHALT_MASK	(1 << ENETDMAC_CHANCFG_PKTHALT_SHIFT)
+#define ENETDMAC_CHANCFG_BUFHALT_SHIFT	2
+#define ENETDMAC_CHANCFG_BUFHALT_MASK	(1 << ENETDMAC_CHANCFG_BUFHALT_SHIFT)
 
 /* Interrupt Control/Status register */
 #define ENETDMAC_IR_REG(x)		(0x4 + (x) * 0x10)
-- 
1.7.11.1

---

From: Kevin Cernekee <[email-masked]>
Date: Sun, 08 Jul 2012 19:41:20 -0700

Signed-off-by: Kevin Cernekee <[email-masked]>
---
 arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h  |  75 ++++++++++-
 arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h | 147 ++++++++++++++++++++++
 2 files changed, 221 insertions(+), 1 deletion(-)

V2:

Rename USBDMA IRQs so they are closer to the ENET names.

diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
index c0e6333..1ac5704 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
@@ -120,6 +120,8 @@ enum bcm63xx_regs_set {
 	RSET_OHCI0,
 	RSET_OHCI_PRIV,
 	RSET_USBH_PRIV,
+	RSET_USBD,
+	RSET_USBDMA,
 	RSET_MPI,
 	RSET_PCMCIA,
 	RSET_PCIE,
@@ -162,6 +164,8 @@ enum bcm63xx_regs_set {
 #define RSET_UDC_SIZE			256
 #define RSET_OHCI_SIZE			256
 #define RSET_EHCI_SIZE			256
+#define RSET_USBD_SIZE			256
+#define RSET_USBDMA_SIZE		1280
 #define RSET_PCMCIA_SIZE		12
 #define RSET_M2M_SIZE			256
 #define RSET_ATM_SIZE			4096
@@ -183,10 +187,11 @@ enum bcm63xx_regs_set {
 #define BCM_6328_GPIO_BASE		(0xb0000080)
 #define BCM_6328_SPI_BASE		(0xdeadbeef)
 #define BCM_6328_UDC0_BASE		(0xdeadbeef)
-#define BCM_6328_USBDMA_BASE		(0xdeadbeef)
+#define BCM_6328_USBDMA_BASE		(0xb000c000)
 #define BCM_6328_OHCI0_BASE		(0xb0002600)
 #define BCM_6328_OHCI_PRIV_BASE		(0xdeadbeef)
 #define BCM_6328_USBH_PRIV_BASE		(0xb0002700)
+#define BCM_6328_USBD_BASE		(0xb0002400)
 #define BCM_6328_MPI_BASE		(0xdeadbeef)
 #define BCM_6328_PCMCIA_BASE		(0xdeadbeef)
 #define BCM_6328_PCIE_BASE		(0xb0e40000)
@@ -232,6 +237,7 @@ enum bcm63xx_regs_set {
 #define BCM_6338_OHCI0_BASE		(0xdeadbeef)
 #define BCM_6338_OHCI_PRIV_BASE		(0xfffe3000)
 #define BCM_6338_USBH_PRIV_BASE		(0xdeadbeef)
+#define BCM_6338_USBD_BASE		(0xdeadbeef)
 #define BCM_6338_MPI_BASE		(0xfffe3160)
 #define BCM_6338_PCMCIA_BASE		(0xdeadbeef)
 #define BCM_6338_PCIE_BASE		(0xdeadbeef)
@@ -286,6 +292,7 @@ enum bcm63xx_regs_set {
 #define BCM_6345_OHCI0_BASE		(0xfffe2100)
 #define BCM_6345_OHCI_PRIV_BASE		(0xfffe2200)
 #define BCM_6345_USBH_PRIV_BASE		(0xdeadbeef)
+#define BCM_6345_USBD_BASE		(0xdeadbeef)
 #define BCM_6345_SDRAM_REGS_BASE	(0xfffe2300)
 #define BCM_6345_DSL_BASE		(0xdeadbeef)
 #define BCM_6345_UBUS_BASE		(0xdeadbeef)
@@ -319,9 +326,11 @@ enum bcm63xx_regs_set {
 #define BCM_6348_GPIO_BASE		(0xfffe0400)
 #define BCM_6348_SPI_BASE		(0xfffe0c00)
 #define BCM_6348_UDC0_BASE		(0xfffe1000)
+#define BCM_6348_USBDMA_BASE		(0xdeadbeef)
 #define BCM_6348_OHCI0_BASE		(0xfffe1b00)
 #define BCM_6348_OHCI_PRIV_BASE		(0xfffe1c00)
 #define BCM_6348_USBH_PRIV_BASE		(0xdeadbeef)
+#define BCM_6348_USBD_BASE		(0xdeadbeef)
 #define BCM_6348_MPI_BASE		(0xfffe2000)
 #define BCM_6348_PCMCIA_BASE		(0xfffe2054)
 #define BCM_6348_PCIE_BASE		(0xdeadbeef)
@@ -362,9 +371,11 @@ enum bcm63xx_regs_set {
 #define BCM_6358_GPIO_BASE		(0xfffe0080)
 #define BCM_6358_SPI_BASE		(0xfffe0800)
 #define BCM_6358_UDC0_BASE		(0xfffe0800)
+#define BCM_6358_USBDMA_BASE		(0xdeadbeef)
 #define BCM_6358_OHCI0_BASE		(0xfffe1400)
 #define BCM_6358_OHCI_PRIV_BASE		(0xdeadbeef)
 #define BCM_6358_USBH_PRIV_BASE		(0xfffe1500)
+#define BCM_6358_USBD_BASE		(0xdeadbeef)
 #define BCM_6358_MPI_BASE		(0xfffe1000)
 #define BCM_6358_PCMCIA_BASE		(0xfffe1054)
 #define BCM_6358_PCIE_BASE		(0xdeadbeef)
@@ -406,9 +417,11 @@ enum bcm63xx_regs_set {
 #define BCM_6368_GPIO_BASE		(0xb0000080)
 #define BCM_6368_SPI_BASE		(0xb0000800)
 #define BCM_6368_UDC0_BASE		(0xdeadbeef)
+#define BCM_6368_USBDMA_BASE		(0xb0004800)
 #define BCM_6368_OHCI0_BASE		(0xb0001600)
 #define BCM_6368_OHCI_PRIV_BASE		(0xdeadbeef)
 #define BCM_6368_USBH_PRIV_BASE		(0xb0001700)
+#define BCM_6368_USBD_BASE		(0xb0001400)
 #define BCM_6368_MPI_BASE		(0xb0001000)
 #define BCM_6368_PCMCIA_BASE		(0xb0001054)
 #define BCM_6368_PCIE_BASE		(0xdeadbeef)
@@ -458,6 +471,8 @@ extern const unsigned long *bcm63xx_regs_base;
 	__GEN_RSET_BASE(__cpu, OHCI0)					\
 	__GEN_RSET_BASE(__cpu, OHCI_PRIV)				\
 	__GEN_RSET_BASE(__cpu, USBH_PRIV)				\
+	__GEN_RSET_BASE(__cpu, USBD)					\
+	__GEN_RSET_BASE(__cpu, USBDMA)					\
 	__GEN_RSET_BASE(__cpu, MPI)					\
 	__GEN_RSET_BASE(__cpu, PCMCIA)					\
 	__GEN_RSET_BASE(__cpu, PCIE)					\
@@ -499,6 +514,8 @@ extern const unsigned long *bcm63xx_regs_base;
 	[RSET_OHCI0]		= BCM_## __cpu ##_OHCI0_BASE,		\
 	[RSET_OHCI_PRIV]	= BCM_## __cpu ##_OHCI_PRIV_BASE,	\
 	[RSET_USBH_PRIV]	= BCM_## __cpu ##_USBH_PRIV_BASE,	\
+	[RSET_USBD]		= BCM_## __cpu ##_USBD_BASE,		\
+	[RSET_USBDMA]		= BCM_## __cpu ##_USBDMA_BASE,		\
 	[RSET_MPI]		= BCM_## __cpu ##_MPI_BASE,		\
 	[RSET_PCMCIA]		= BCM_## __cpu ##_PCMCIA_BASE,		\
 	[RSET_PCIE]		= BCM_## __cpu ##_PCIE_BASE,		\
@@ -569,6 +586,13 @@ enum bcm63xx_irq {
 	IRQ_ENET_PHY,
 	IRQ_OHCI0,
 	IRQ_EHCI0,
+	IRQ_USBD,
+	IRQ_USBD_RXDMA0,
+	IRQ_USBD_TXDMA0,
+	IRQ_USBD_RXDMA1,
+	IRQ_USBD_TXDMA1,
+	IRQ_USBD_RXDMA2,
+	IRQ_USBD_TXDMA2,
 	IRQ_ENET0_RXDMA,
 	IRQ_ENET0_TXDMA,
 	IRQ_ENET1_RXDMA,
@@ -604,6 +628,13 @@ enum bcm63xx_irq {
 #define BCM_6328_ENET_PHY_IRQ		(IRQ_INTERNAL_BASE + 12)
 #define BCM_6328_OHCI0_IRQ		(BCM_6328_HIGH_IRQ_BASE + 9)
 #define BCM_6328_EHCI0_IRQ		(BCM_6328_HIGH_IRQ_BASE + 10)
+#define BCM_6328_USBD_IRQ		(IRQ_INTERNAL_BASE + 4)
+#define BCM_6328_USBD_RXDMA0_IRQ	(IRQ_INTERNAL_BASE + 5)
+#define BCM_6328_USBD_TXDMA0_IRQ	(IRQ_INTERNAL_BASE + 6)
+#define BCM_6328_USBD_RXDMA1_IRQ	(IRQ_INTERNAL_BASE + 7)
+#define BCM_6328_USBD_TXDMA1_IRQ	(IRQ_INTERNAL_BASE + 8)
+#define BCM_6328_USBD_RXDMA2_IRQ	(IRQ_INTERNAL_BASE + 9)
+#define BCM_6328_USBD_TXDMA2_IRQ	(IRQ_INTERNAL_BASE + 10)
 #define BCM_6328_PCMCIA_IRQ		0
 #define BCM_6328_ENET0_RXDMA_IRQ	0
 #define BCM_6328_ENET0_TXDMA_IRQ	0
@@ -642,6 +673,13 @@ enum bcm63xx_irq {
 #define BCM_6338_ENET_PHY_IRQ		(IRQ_INTERNAL_BASE + 9)
 #define BCM_6338_OHCI0_IRQ		0
 #define BCM_6338_EHCI0_IRQ		0
+#define BCM_6338_USBD_IRQ		0
+#define BCM_6338_USBD_RXDMA0_IRQ	0
+#define BCM_6338_USBD_TXDMA0_IRQ	0
+#define BCM_6338_USBD_RXDMA1_IRQ	0
+#define BCM_6338_USBD_TXDMA1_IRQ	0
+#define BCM_6338_USBD_RXDMA2_IRQ	0
+#define BCM_6338_USBD_TXDMA2_IRQ	0
 #define BCM_6338_ENET0_RXDMA_IRQ	(IRQ_INTERNAL_BASE + 15)
 #define BCM_6338_ENET0_TXDMA_IRQ	(IRQ_INTERNAL_BASE + 16)
 #define BCM_6338_ENET1_RXDMA_IRQ	0
@@ -673,6 +711,13 @@ enum bcm63xx_irq {
 #define BCM_6345_ENET_PHY_IRQ		(IRQ_INTERNAL_BASE + 12)
 #define BCM_6345_OHCI0_IRQ		0
 #define BCM_6345_EHCI0_IRQ		0
+#define BCM_6345_USBD_IRQ		0
+#define BCM_6345_USBD_RXDMA0_IRQ	0
+#define BCM_6345_USBD_TXDMA0_IRQ	0
+#define BCM_6345_USBD_RXDMA1_IRQ	0
+#define BCM_6345_USBD_TXDMA1_IRQ	0
+#define BCM_6345_USBD_RXDMA2_IRQ	0
+#define BCM_6345_USBD_TXDMA2_IRQ	0
 #define BCM_6345_ENET0_RXDMA_IRQ	(IRQ_INTERNAL_BASE + 13 + 1)
 #define BCM_6345_ENET0_TXDMA_IRQ	(IRQ_INTERNAL_BASE + 13 + 2)
 #define BCM_6345_ENET1_RXDMA_IRQ	0
@@ -704,6 +749,13 @@ enum bcm63xx_irq {
 #define BCM_6348_ENET_PHY_IRQ		(IRQ_INTERNAL_BASE + 9)
 #define BCM_6348_OHCI0_IRQ		(IRQ_INTERNAL_BASE + 12)
 #define BCM_6348_EHCI0_IRQ		0
+#define BCM_6348_USBD_IRQ		0
+#define BCM_6348_USBD_RXDMA0_IRQ	0
+#define BCM_6348_USBD_TXDMA0_IRQ	0
+#define BCM_6348_USBD_RXDMA1_IRQ	0
+#define BCM_6348_USBD_TXDMA1_IRQ	0
+#define BCM_6348_USBD_RXDMA2_IRQ	0
+#define BCM_6348_USBD_TXDMA2_IRQ	0
 #define BCM_6348_ENET0_RXDMA_IRQ	(IRQ_INTERNAL_BASE + 20)
 #define BCM_6348_ENET0_TXDMA_IRQ	(IRQ_INTERNAL_BASE + 21)
 #define BCM_6348_ENET1_RXDMA_IRQ	(IRQ_INTERNAL_BASE + 22)
@@ -735,6 +787,13 @@ enum bcm63xx_irq {
 #define BCM_6358_ENET_PHY_IRQ		(IRQ_INTERNAL_BASE + 9)
 #define BCM_6358_OHCI0_IRQ		(IRQ_INTERNAL_BASE + 5)
 #define BCM_6358_EHCI0_IRQ		(IRQ_INTERNAL_BASE + 10)
+#define BCM_6358_USBD_IRQ		0
+#define BCM_6358_USBD_RXDMA0_IRQ	0
+#define BCM_6358_USBD_TXDMA0_IRQ	0
+#define BCM_6358_USBD_RXDMA1_IRQ	0
+#define BCM_6358_USBD_TXDMA1_IRQ	0
+#define BCM_6358_USBD_RXDMA2_IRQ	0
+#define BCM_6358_USBD_TXDMA2_IRQ	0
 #define BCM_6358_ENET0_RXDMA_IRQ	(IRQ_INTERNAL_BASE + 15)
 #define BCM_6358_ENET0_TXDMA_IRQ	(IRQ_INTERNAL_BASE + 16)
 #define BCM_6358_ENET1_RXDMA_IRQ	(IRQ_INTERNAL_BASE + 17)
@@ -775,6 +834,13 @@ enum bcm63xx_irq {
 #define BCM_6368_ENET_PHY_IRQ		(IRQ_INTERNAL_BASE + 15)
 #define BCM_6368_OHCI0_IRQ		(IRQ_INTERNAL_BASE + 5)
 #define BCM_6368_EHCI0_IRQ		(IRQ_INTERNAL_BASE + 7)
+#define BCM_6368_USBD_IRQ		(IRQ_INTERNAL_BASE + 8)
+#define BCM_6368_USBD_RXDMA0_IRQ	(IRQ_INTERNAL_BASE + 26)
+#define BCM_6368_USBD_TXDMA0_IRQ	(IRQ_INTERNAL_BASE + 27)
+#define BCM_6368_USBD_RXDMA1_IRQ	(IRQ_INTERNAL_BASE + 28)
+#define BCM_6368_USBD_TXDMA1_IRQ	(IRQ_INTERNAL_BASE + 29)
+#define BCM_6368_USBD_RXDMA2_IRQ	(IRQ_INTERNAL_BASE + 30)
+#define BCM_6368_USBD_TXDMA2_IRQ	(IRQ_INTERNAL_BASE + 31)
 #define BCM_6368_PCMCIA_IRQ		0
 #define BCM_6368_ENET0_RXDMA_IRQ	0
 #define BCM_6368_ENET0_TXDMA_IRQ	0
@@ -815,6 +881,13 @@ extern const int *bcm63xx_irqs;
 	[IRQ_ENET_PHY]		= BCM_## __cpu ##_ENET_PHY_IRQ,		\
 	[IRQ_OHCI0]		= BCM_## __cpu ##_OHCI0_IRQ,		\
 	[IRQ_EHCI0]		= BCM_## __cpu ##_EHCI0_IRQ,		\
+	[IRQ_USBD]		= BCM_## __cpu ##_USBD_IRQ,		\
+	[IRQ_USBD_RXDMA0]	= BCM_## __cpu ##_USBD_RXDMA0_IRQ,	\
+	[IRQ_USBD_TXDMA0]	= BCM_## __cpu ##_USBD_TXDMA0_IRQ,	\
+	[IRQ_USBD_RXDMA1]	= BCM_## __cpu ##_USBD_RXDMA1_IRQ,	\
+	[IRQ_USBD_TXDMA1]	= BCM_## __cpu ##_USBD_TXDMA1_IRQ,	\
+	[IRQ_USBD_RXDMA2]	= BCM_## __cpu ##_USBD_RXDMA2_IRQ,	\
+	[IRQ_USBD_TXDMA2]	= BCM_## __cpu ##_USBD_TXDMA2_IRQ,	\
 	[IRQ_ENET0_RXDMA]	= BCM_## __cpu ##_ENET0_RXDMA_IRQ,	\
 	[IRQ_ENET0_TXDMA]	= BCM_## __cpu ##_ENET0_TXDMA_IRQ,	\
 	[IRQ_ENET1_RXDMA]	= BCM_## __cpu ##_ENET1_RXDMA_IRQ,	\
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
index 29654ae..fa74a37 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
@@ -795,6 +795,12 @@
 #define USBH_PRIV_SWAP_OHCI_DATA_SHIFT	0
 #define USBH_PRIV_SWAP_OHCI_DATA_MASK	(1 << USBH_PRIV_SWAP_OHCI_DATA_SHIFT)
 
+#define USBH_PRIV_UTMI_CTL_6368_REG	0x10
+#define USBH_PRIV_UTMI_CTL_NODRIV_SHIFT	12
+#define USBH_PRIV_UTMI_CTL_NODRIV_MASK	(0xf << USBH_PRIV_UTMI_CTL_NODRIV_SHIFT)
+#define USBH_PRIV_UTMI_CTL_HOSTB_SHIFT	0
+#define USBH_PRIV_UTMI_CTL_HOSTB_MASK	(0xf << USBH_PRIV_UTMI_CTL_HOSTB_SHIFT)
+
 #define USBH_PRIV_TEST_6358_REG		0x24
 #define USBH_PRIV_TEST_6368_REG		0x14
 
@@ -803,6 +809,147 @@
 #define USBH_PRIV_SETUP_IOC_MASK	(1 << USBH_PRIV_SETUP_IOC_SHIFT)

+/*************************************************************************
+ * _REG relative to RSET_USBD
+ *************************************************************************/
+
+/* General control */
+#define USBD_CONTROL_REG		0x00
+#define USBD_CONTROL_TXZLENINS_SHIFT	14
+#define USBD_CONTROL_TXZLENINS_MASK	(1 << USBD_CONTROL_TXZLENINS_SHIFT)
+#define USBD_CONTROL_AUTO_CSRS_SHIFT	13
+#define USBD_CONTROL_AUTO_CSRS_MASK	(1 << USBD_CONTROL_AUTO_CSRS_SHIFT)
+#define USBD_CONTROL_RXZSCFG_SHIFT	12
+#define USBD_CONTROL_RXZSCFG_MASK	(1 << USBD_CONTROL_RXZSCFG_SHIFT)
+#define USBD_CONTROL_INIT_SEL_SHIFT	8
+#define USBD_CONTROL_INIT_SEL_MASK	(0xf << USBD_CONTROL_INIT_SEL_SHIFT)
+#define USBD_CONTROL_FIFO_RESET_SHIFT	6
+#define USBD_CONTROL_FIFO_RESET_MASK	(3 << USBD_CONTROL_FIFO_RESET_SHIFT)
+#define USBD_CONTROL_SETUPERRLOCK_SHIFT	5
+#define USBD_CONTROL_SETUPERRLOCK_MASK	(1 << USBD_CONTROL_SETUPERRLOCK_SHIFT)
+#define USBD_CONTROL_DONE_CSRS_SHIFT	0
+#define USBD_CONTROL_DONE_CSRS_MASK	(1 << USBD_CONTROL_DONE_CSRS_SHIFT)
+
+/* Strap options */
+#define USBD_STRAPS_REG			0x04
+#define USBD_STRAPS_APP_SELF_PWR_SHIFT	10
+#define USBD_STRAPS_APP_SELF_PWR_MASK	(1 << USBD_STRAPS_APP_SELF_PWR_SHIFT)
+#define USBD_STRAPS_APP_DISCON_SHIFT	9
+#define USBD_STRAPS_APP_DISCON_MASK	(1 << USBD_STRAPS_APP_DISCON_SHIFT)
+#define USBD_STRAPS_APP_CSRPRGSUP_SHIFT	8
+#define USBD_STRAPS_APP_CSRPRGSUP_MASK	(1 << USBD_STRAPS_APP_CSRPRGSUP_SHIFT)
+#define USBD_STRAPS_APP_RMTWKUP_SHIFT	6
+#define USBD_STRAPS_APP_RMTWKUP_MASK	(1 << USBD_STRAPS_APP_RMTWKUP_SHIFT)
+#define USBD_STRAPS_APP_RAM_IF_SHIFT	7
+#define USBD_STRAPS_APP_RAM_IF_MASK	(1 << USBD_STRAPS_APP_RAM_IF_SHIFT)
+#define USBD_STRAPS_APP_8BITPHY_SHIFT	2
+#define USBD_STRAPS_APP_8BITPHY_MASK	(1 << USBD_STRAPS_APP_8BITPHY_SHIFT)
+#define USBD_STRAPS_SPEED_SHIFT		0
+#define USBD_STRAPS_SPEED_MASK		(3 << USBD_STRAPS_SPEED_SHIFT)
+
+/* Stall control */
+#define USBD_STALL_REG			0x08
+#define USBD_STALL_UPDATE_SHIFT		7
+#define USBD_STALL_UPDATE_MASK		(1 << USBD_STALL_UPDATE_SHIFT)
+#define USBD_STALL_ENABLE_SHIFT		6
+#define USBD_STALL_ENABLE_MASK		(1 << USBD_STALL_ENABLE_SHIFT)
+#define USBD_STALL_EPNUM_SHIFT		0
+#define USBD_STALL_EPNUM_MASK		(0xf << USBD_STALL_EPNUM_SHIFT)
+
+/* General status */
+#define USBD_STATUS_REG			0x0c
+#define USBD_STATUS_SOF_SHIFT		16
+#define USBD_STATUS_SOF_MASK		(0x7ff << USBD_STATUS_SOF_SHIFT)
+#define USBD_STATUS_SPD_SHIFT		12
+#define USBD_STATUS_SPD_MASK		(3 << USBD_STATUS_SPD_SHIFT)
+#define USBD_STATUS_ALTINTF_SHIFT	8
+#define USBD_STATUS_ALTINTF_MASK	(0xf << USBD_STATUS_ALTINTF_SHIFT)
+#define USBD_STATUS_INTF_SHIFT		4
+#define USBD_STATUS_INTF_MASK		(0xf << USBD_STATUS_INTF_SHIFT)
+#define USBD_STATUS_CFG_SHIFT		0
+#define USBD_STATUS_CFG_MASK		(0xf << USBD_STATUS_CFG_SHIFT)
+
+/* Other events */
+#define USBD_EVENTS_REG			0x10
+#define USBD_EVENTS_USB_LINK_SHIFT	10
+#define USBD_EVENTS_USB_LINK_MASK	(1 << USBD_EVENTS_USB_LINK_SHIFT)
+
+/* IRQ status */
+#define USBD_EVENT_IRQ_STATUS_REG	0x14
+
+/* IRQ level (2 bits per IRQ event) */
+#define USBD_EVENT_IRQ_CFG_HI_REG	0x18
+
+#define USBD_EVENT_IRQ_CFG_LO_REG	0x1c
+
+#define USBD_EVENT_IRQ_CFG_SHIFT(x)	((x & 0xf) << 1)
+#define USBD_EVENT_IRQ_CFG_MASK(x)	(3 << USBD_EVENT_IRQ_CFG_SHIFT(x))
+#define USBD_EVENT_IRQ_CFG_RISING(x)	(0 << USBD_EVENT_IRQ_CFG_SHIFT(x))
+#define USBD_EVENT_IRQ_CFG_FALLING(x)	(1 << USBD_EVENT_IRQ_CFG_SHIFT(x))
+
+/* IRQ mask (1=unmasked) */
+#define USBD_EVENT_IRQ_MASK_REG		0x20
+
+/* IRQ bits */
+#define USBD_EVENT_IRQ_USB_LINK		10
+#define USBD_EVENT_IRQ_SETCFG		9
+#define USBD_EVENT_IRQ_SETINTF		8
+#define USBD_EVENT_IRQ_ERRATIC_ERR	7
+#define USBD_EVENT_IRQ_SET_CSRS		6
+#define USBD_EVENT_IRQ_SUSPEND		5
+#define USBD_EVENT_IRQ_EARLY_SUSPEND	4
+#define USBD_EVENT_IRQ_SOF		3
+#define USBD_EVENT_IRQ_ENUM_ON		2
+#define USBD_EVENT_IRQ_SETUP		1
+#define USBD_EVENT_IRQ_USB_RESET	0
+
+/* TX FIFO partitioning */
+#define USBD_TXFIFO_CONFIG_REG		0x40
+#define USBD_TXFIFO_CONFIG_END_SHIFT	16
+#define USBD_TXFIFO_CONFIG_END_MASK	(0xff << USBD_TXFIFO_CONFIG_END_SHIFT)
+#define USBD_TXFIFO_CONFIG_START_SHIFT	0
+#define USBD_TXFIFO_CONFIG_START_MASK	(0xff << USBD_TXFIFO_CONFIG_START_SHIFT)
+
+/* RX FIFO partitioning */
+#define USBD_RXFIFO_CONFIG_REG		0x44
+#define USBD_RXFIFO_CONFIG_END_SHIFT	16
+#define USBD_RXFIFO_CONFIG_END_MASK	(0xff << USBD_TXFIFO_CONFIG_END_SHIFT)
+#define USBD_RXFIFO_CONFIG_START_SHIFT	0
+#define USBD_RXFIFO_CONFIG_START_MASK	(0xff << USBD_TXFIFO_CONFIG_START_SHIFT)
+
+/* TX FIFO/endpoint configuration */
+#define USBD_TXFIFO_EPSIZE_REG		0x48
+
+/* RX FIFO/endpoint configuration */
+#define USBD_RXFIFO_EPSIZE_REG		0x4c
+
+/* Endpoint<->DMA mappings */
+#define USBD_EPNUM_TYPEMAP_REG		0x50
+#define USBD_EPNUM_TYPEMAP_TYPE_SHIFT	8
+#define USBD_EPNUM_TYPEMAP_TYPE_MASK	(0x3 << USBD_EPNUM_TYPEMAP_TYPE_SHIFT)
+#define USBD_EPNUM_TYPEMAP_DMA_CH_SHIFT	0
+#define USBD_EPNUM_TYPEMAP_DMA_CH_MASK	(0xf << USBD_EPNUM_TYPEMAP_DMACH_SHIFT)
+
+/* Misc per-endpoint settings */
+#define USBD_CSR_SETUPADDR_REG		0x80
+#define USBD_CSR_SETUPADDR_DEF		0xb550
+
+#define USBD_CSR_EP_REG(x)		(0x84 + (x) * 4)
+#define USBD_CSR_EP_MAXPKT_SHIFT	19
+#define USBD_CSR_EP_MAXPKT_MASK		(0x7ff << USBD_CSR_EP_MAXPKT_SHIFT)
+#define USBD_CSR_EP_ALTIFACE_SHIFT	15
+#define USBD_CSR_EP_ALTIFACE_MASK	(0xf << USBD_CSR_EP_ALTIFACE_SHIFT)
+#define USBD_CSR_EP_IFACE_SHIFT		11
+#define USBD_CSR_EP_IFACE_MASK		(0xf << USBD_CSR_EP_IFACE_SHIFT)
+#define USBD_CSR_EP_CFG_SHIFT		7
+#define USBD_CSR_EP_CFG_MASK		(0xf << USBD_CSR_EP_CFG_SHIFT)
+#define USBD_CSR_EP_TYPE_SHIFT		5
+#define USBD_CSR_EP_TYPE_MASK		(3 << USBD_CSR_EP_TYPE_SHIFT)
+#define USBD_CSR_EP_DIR_SHIFT		4
+#define USBD_CSR_EP_DIR_MASK		(1 << USBD_CSR_EP_DIR_SHIFT)
+#define USBD_CSR_EP_LOG_SHIFT		0
+#define USBD_CSR_EP_LOG_MASK		(0xf << USBD_CSR_EP_LOG_SHIFT)
+
 
 /*************************************************************************
  * _REG relative to RSET_MPI
-- 
1.7.11.1

---

From: Kevin Cernekee <[email-masked]>
Date: Sun, 08 Jul 2012 19:41:21 -0700

Signed-off-by: Kevin Cernekee <[email-masked]>
---
 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 <[email-masked]>
+ * Copyright (C) 2012 Kevin Cernekee <[email-masked]>
+ * 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