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authorArnd Bergmann <arnd@arndb.de>2016-01-28 17:17:02 +0100
committerFelipe Balbi <balbi@kernel.org>2016-03-04 15:14:28 +0200
commitc5418a0b98c1ff7ae6f3d0b248d9120368156f4a (patch)
treeade40d5475fc1219bae9a6011c0b358494c9bb65 /drivers/usb
parent21a596c17b2738fc0f13dd4cdfb6f42c397109ac (diff)
downloadblackbird-op-linux-c5418a0b98c1ff7ae6f3d0b248d9120368156f4a.tar.gz
blackbird-op-linux-c5418a0b98c1ff7ae6f3d0b248d9120368156f4a.zip
usb: gadget: pxa25x_udc: move register definitions from arch
ixp4xx and pxa25x both use this driver and provide a slightly different set of register definitions for it. Aside from that, the definition in the ixp4xx-regs.h header conflicts with the on in the pxa27x device driver when compile-testing that: In file included from ../drivers/usb/gadget/udc/pxa27x_udc.c:37:0: ../drivers/usb/gadget/udc/pxa27x_udc.h:26:0: warning: "UDCCR" redefined #define UDCCR 0x0000 /* UDC Control Register */ ^ In file included from ../arch/arm/mach-ixp4xx/include/mach/hardware.h:27:0, from ../arch/arm/mach-ixp4xx/include/mach/io.h:18, from ../arch/arm/include/asm/io.h:194, from ../include/linux/io.h:25, from ../include/linux/irq.h:24, from ../drivers/usb/gadget/udc/pxa27x_udc.c:23: ../arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h:415:0: note: this is the location of the previous definition #define UDCCR IXP4XX_USB_REG(IXP4XX_USB_BASE_VIRT+0x0000) This addresses both issues by moving all the definitions into the pxa25x_udc driver itself. It turns out the only difference between them was 'UDCCS_IO_ROF', and that could well be a mistake when it was incorrectly copied from pxa25x to ixp4xx. Acked-by: Krzysztof Halasa <khalasa@piap.pl> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Felipe Balbi <balbi@kernel.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/gadget/udc/pxa25x_udc.c161
1 files changed, 155 insertions, 6 deletions
diff --git a/drivers/usb/gadget/udc/pxa25x_udc.c b/drivers/usb/gadget/udc/pxa25x_udc.c
index b82cb14850b6..26537f50374d 100644
--- a/drivers/usb/gadget/udc/pxa25x_udc.c
+++ b/drivers/usb/gadget/udc/pxa25x_udc.c
@@ -48,18 +48,167 @@
#include <linux/usb/gadget.h>
#include <linux/usb/otg.h>
-/*
- * This driver is PXA25x only. Grab the right register definitions.
- */
-#ifdef CONFIG_ARCH_PXA
-#include <mach/pxa25x-udc.h>
#include <mach/hardware.h>
-#endif
#ifdef CONFIG_ARCH_LUBBOCK
#include <mach/lubbock.h>
#endif
+#ifdef CONFIG_ARCH_IXP4XX
+#define __UDC_REG(x) (*((volatile u32 *)(IXP4XX_USB_BASE_VIRT + (x))))
+#endif
+
+#ifdef CONFIG_ARCH_PXA
+#define __UDC_REG(x) __REG(0x40600000 + (x))
+#endif
+
+#define UDCCR __UDC_REG(0x0000) /* UDC Control Register */
+#define UDC_RES1 __UDC_REG(0x0004) /* UDC Undocumented - Reserved1 */
+#define UDC_RES2 __UDC_REG(0x0008) /* UDC Undocumented - Reserved2 */
+#define UDC_RES3 __UDC_REG(0x000C) /* UDC Undocumented - Reserved3 */
+#define UDCCS0 __UDC_REG(0x0010) /* UDC Endpoint 0 Control/Status Register */
+#define UDCCS1 __UDC_REG(0x0014) /* UDC Endpoint 1 (IN) Control/Status Register */
+#define UDCCS2 __UDC_REG(0x0018) /* UDC Endpoint 2 (OUT) Control/Status Register */
+#define UDCCS3 __UDC_REG(0x001C) /* UDC Endpoint 3 (IN) Control/Status Register */
+#define UDCCS4 __UDC_REG(0x0020) /* UDC Endpoint 4 (OUT) Control/Status Register */
+#define UDCCS5 __UDC_REG(0x0024) /* UDC Endpoint 5 (Interrupt) Control/Status Register */
+#define UDCCS6 __UDC_REG(0x0028) /* UDC Endpoint 6 (IN) Control/Status Register */
+#define UDCCS7 __UDC_REG(0x002C) /* UDC Endpoint 7 (OUT) Control/Status Register */
+#define UDCCS8 __UDC_REG(0x0030) /* UDC Endpoint 8 (IN) Control/Status Register */
+#define UDCCS9 __UDC_REG(0x0034) /* UDC Endpoint 9 (OUT) Control/Status Register */
+#define UDCCS10 __UDC_REG(0x0038) /* UDC Endpoint 10 (Interrupt) Control/Status Register */
+#define UDCCS11 __UDC_REG(0x003C) /* UDC Endpoint 11 (IN) Control/Status Register */
+#define UDCCS12 __UDC_REG(0x0040) /* UDC Endpoint 12 (OUT) Control/Status Register */
+#define UDCCS13 __UDC_REG(0x0044) /* UDC Endpoint 13 (IN) Control/Status Register */
+#define UDCCS14 __UDC_REG(0x0048) /* UDC Endpoint 14 (OUT) Control/Status Register */
+#define UDCCS15 __UDC_REG(0x004C) /* UDC Endpoint 15 (Interrupt) Control/Status Register */
+#define UFNRH __UDC_REG(0x0060) /* UDC Frame Number Register High */
+#define UFNRL __UDC_REG(0x0064) /* UDC Frame Number Register Low */
+#define UBCR2 __UDC_REG(0x0068) /* UDC Byte Count Reg 2 */
+#define UBCR4 __UDC_REG(0x006c) /* UDC Byte Count Reg 4 */
+#define UBCR7 __UDC_REG(0x0070) /* UDC Byte Count Reg 7 */
+#define UBCR9 __UDC_REG(0x0074) /* UDC Byte Count Reg 9 */
+#define UBCR12 __UDC_REG(0x0078) /* UDC Byte Count Reg 12 */
+#define UBCR14 __UDC_REG(0x007c) /* UDC Byte Count Reg 14 */
+#define UDDR0 __UDC_REG(0x0080) /* UDC Endpoint 0 Data Register */
+#define UDDR1 __UDC_REG(0x0100) /* UDC Endpoint 1 Data Register */
+#define UDDR2 __UDC_REG(0x0180) /* UDC Endpoint 2 Data Register */
+#define UDDR3 __UDC_REG(0x0200) /* UDC Endpoint 3 Data Register */
+#define UDDR4 __UDC_REG(0x0400) /* UDC Endpoint 4 Data Register */
+#define UDDR5 __UDC_REG(0x00A0) /* UDC Endpoint 5 Data Register */
+#define UDDR6 __UDC_REG(0x0600) /* UDC Endpoint 6 Data Register */
+#define UDDR7 __UDC_REG(0x0680) /* UDC Endpoint 7 Data Register */
+#define UDDR8 __UDC_REG(0x0700) /* UDC Endpoint 8 Data Register */
+#define UDDR9 __UDC_REG(0x0900) /* UDC Endpoint 9 Data Register */
+#define UDDR10 __UDC_REG(0x00C0) /* UDC Endpoint 10 Data Register */
+#define UDDR11 __UDC_REG(0x0B00) /* UDC Endpoint 11 Data Register */
+#define UDDR12 __UDC_REG(0x0B80) /* UDC Endpoint 12 Data Register */
+#define UDDR13 __UDC_REG(0x0C00) /* UDC Endpoint 13 Data Register */
+#define UDDR14 __UDC_REG(0x0E00) /* UDC Endpoint 14 Data Register */
+#define UDDR15 __UDC_REG(0x00E0) /* UDC Endpoint 15 Data Register */
+
+#define UICR0 __UDC_REG(0x0050) /* UDC Interrupt Control Register 0 */
+#define UICR1 __UDC_REG(0x0054) /* UDC Interrupt Control Register 1 */
+
+#define USIR0 __UDC_REG(0x0058) /* UDC Status Interrupt Register 0 */
+#define USIR1 __UDC_REG(0x005C) /* UDC Status Interrupt Register 1 */
+
+#define UDCCR_UDE (1 << 0) /* UDC enable */
+#define UDCCR_UDA (1 << 1) /* UDC active */
+#define UDCCR_RSM (1 << 2) /* Device resume */
+#define UDCCR_RESIR (1 << 3) /* Resume interrupt request */
+#define UDCCR_SUSIR (1 << 4) /* Suspend interrupt request */
+#define UDCCR_SRM (1 << 5) /* Suspend/resume interrupt mask */
+#define UDCCR_RSTIR (1 << 6) /* Reset interrupt request */
+#define UDCCR_REM (1 << 7) /* Reset interrupt mask */
+
+#define UDCCS0_OPR (1 << 0) /* OUT packet ready */
+#define UDCCS0_IPR (1 << 1) /* IN packet ready */
+#define UDCCS0_FTF (1 << 2) /* Flush Tx FIFO */
+#define UDCCS0_DRWF (1 << 3) /* Device remote wakeup feature */
+#define UDCCS0_SST (1 << 4) /* Sent stall */
+#define UDCCS0_FST (1 << 5) /* Force stall */
+#define UDCCS0_RNE (1 << 6) /* Receive FIFO no empty */
+#define UDCCS0_SA (1 << 7) /* Setup active */
+
+#define UDCCS_BI_TFS (1 << 0) /* Transmit FIFO service */
+#define UDCCS_BI_TPC (1 << 1) /* Transmit packet complete */
+#define UDCCS_BI_FTF (1 << 2) /* Flush Tx FIFO */
+#define UDCCS_BI_TUR (1 << 3) /* Transmit FIFO underrun */
+#define UDCCS_BI_SST (1 << 4) /* Sent stall */
+#define UDCCS_BI_FST (1 << 5) /* Force stall */
+#define UDCCS_BI_TSP (1 << 7) /* Transmit short packet */
+
+#define UDCCS_BO_RFS (1 << 0) /* Receive FIFO service */
+#define UDCCS_BO_RPC (1 << 1) /* Receive packet complete */
+#define UDCCS_BO_DME (1 << 3) /* DMA enable */
+#define UDCCS_BO_SST (1 << 4) /* Sent stall */
+#define UDCCS_BO_FST (1 << 5) /* Force stall */
+#define UDCCS_BO_RNE (1 << 6) /* Receive FIFO not empty */
+#define UDCCS_BO_RSP (1 << 7) /* Receive short packet */
+
+#define UDCCS_II_TFS (1 << 0) /* Transmit FIFO service */
+#define UDCCS_II_TPC (1 << 1) /* Transmit packet complete */
+#define UDCCS_II_FTF (1 << 2) /* Flush Tx FIFO */
+#define UDCCS_II_TUR (1 << 3) /* Transmit FIFO underrun */
+#define UDCCS_II_TSP (1 << 7) /* Transmit short packet */
+
+#define UDCCS_IO_RFS (1 << 0) /* Receive FIFO service */
+#define UDCCS_IO_RPC (1 << 1) /* Receive packet complete */
+#ifdef CONFIG_ARCH_IXP4XX /* FIXME: is this right?, datasheed says '2' */
+#define UDCCS_IO_ROF (1 << 3) /* Receive overflow */
+#endif
+#ifdef CONFIG_ARCH_PXA
+#define UDCCS_IO_ROF (1 << 2) /* Receive overflow */
+#endif
+#define UDCCS_IO_DME (1 << 3) /* DMA enable */
+#define UDCCS_IO_RNE (1 << 6) /* Receive FIFO not empty */
+#define UDCCS_IO_RSP (1 << 7) /* Receive short packet */
+
+#define UDCCS_INT_TFS (1 << 0) /* Transmit FIFO service */
+#define UDCCS_INT_TPC (1 << 1) /* Transmit packet complete */
+#define UDCCS_INT_FTF (1 << 2) /* Flush Tx FIFO */
+#define UDCCS_INT_TUR (1 << 3) /* Transmit FIFO underrun */
+#define UDCCS_INT_SST (1 << 4) /* Sent stall */
+#define UDCCS_INT_FST (1 << 5) /* Force stall */
+#define UDCCS_INT_TSP (1 << 7) /* Transmit short packet */
+
+#define UICR0_IM0 (1 << 0) /* Interrupt mask ep 0 */
+#define UICR0_IM1 (1 << 1) /* Interrupt mask ep 1 */
+#define UICR0_IM2 (1 << 2) /* Interrupt mask ep 2 */
+#define UICR0_IM3 (1 << 3) /* Interrupt mask ep 3 */
+#define UICR0_IM4 (1 << 4) /* Interrupt mask ep 4 */
+#define UICR0_IM5 (1 << 5) /* Interrupt mask ep 5 */
+#define UICR0_IM6 (1 << 6) /* Interrupt mask ep 6 */
+#define UICR0_IM7 (1 << 7) /* Interrupt mask ep 7 */
+
+#define UICR1_IM8 (1 << 0) /* Interrupt mask ep 8 */
+#define UICR1_IM9 (1 << 1) /* Interrupt mask ep 9 */
+#define UICR1_IM10 (1 << 2) /* Interrupt mask ep 10 */
+#define UICR1_IM11 (1 << 3) /* Interrupt mask ep 11 */
+#define UICR1_IM12 (1 << 4) /* Interrupt mask ep 12 */
+#define UICR1_IM13 (1 << 5) /* Interrupt mask ep 13 */
+#define UICR1_IM14 (1 << 6) /* Interrupt mask ep 14 */
+#define UICR1_IM15 (1 << 7) /* Interrupt mask ep 15 */
+
+#define USIR0_IR0 (1 << 0) /* Interrupt request ep 0 */
+#define USIR0_IR1 (1 << 1) /* Interrupt request ep 1 */
+#define USIR0_IR2 (1 << 2) /* Interrupt request ep 2 */
+#define USIR0_IR3 (1 << 3) /* Interrupt request ep 3 */
+#define USIR0_IR4 (1 << 4) /* Interrupt request ep 4 */
+#define USIR0_IR5 (1 << 5) /* Interrupt request ep 5 */
+#define USIR0_IR6 (1 << 6) /* Interrupt request ep 6 */
+#define USIR0_IR7 (1 << 7) /* Interrupt request ep 7 */
+
+#define USIR1_IR8 (1 << 0) /* Interrupt request ep 8 */
+#define USIR1_IR9 (1 << 1) /* Interrupt request ep 9 */
+#define USIR1_IR10 (1 << 2) /* Interrupt request ep 10 */
+#define USIR1_IR11 (1 << 3) /* Interrupt request ep 11 */
+#define USIR1_IR12 (1 << 4) /* Interrupt request ep 12 */
+#define USIR1_IR13 (1 << 5) /* Interrupt request ep 13 */
+#define USIR1_IR14 (1 << 6) /* Interrupt request ep 14 */
+#define USIR1_IR15 (1 << 7) /* Interrupt request ep 15 */
+
/*
* This driver handles the USB Device Controller (UDC) in Intel's PXA 25x
* series processors. The UDC for the IXP 4xx series is very similar.
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