ramips: port patches to linux-3.6

Signed-off-by: Daniel Golle <dgolle@allnet.de>

 create mode 100644 target/linux/ramips/patches-3.6/001-mips-add-cp0-compare-irq-function.patch
 create mode 100644 target/linux/ramips/patches-3.6/010-mtd_fix_cfi_cmdset_0002_erase_status_check.patch
 create mode 100644 target/linux/ramips/patches-3.6/011-mtd-cfi_cmdset_0002-force-word-write.patch
 create mode 100644 target/linux/ramips/patches-3.6/100-mips-ralink-core.patch
 create mode 100644 target/linux/ramips/patches-3.6/101-rt288x_serial_driver_hack.patch
 create mode 100644 target/linux/ramips/patches-3.6/102-rt288x-pci-driver-hook.patch
 create mode 100644 target/linux/ramips/patches-3.6/103-ethernet.patch
 create mode 100644 target/linux/ramips/patches-3.6/104-ramips-watchdog-driver.patch
 create mode 100644 target/linux/ramips/patches-3.6/105-ramips-spi-driver.patch
 create mode 100644 target/linux/ramips/patches-3.6/105-usb_dwc_otg.patch
 create mode 100644 target/linux/ramips/patches-3.6/106-rt3883-pci-support.patch
 create mode 100644 target/linux/ramips/patches-3.6/200-rt3883-ehci-glue.patch
 create mode 100644 target/linux/ramips/patches-3.6/201-rt3883-ohci-glue.patch

SVN-Revision: 34108

13 files changed, 414 insertions, 0 deletions

diff --git a/target/linux/ramips/patches-3.6/001-mips-add-cp0-compare-irq-function.patch b/target/linux/ramips/patches-3.6/001-mips-add-cp0-compare-irq-function.patch
new file mode 100644
index 0000000000..41e5e8e212
--- /dev/null
+++ b/target/linux/ramips/patches-3.6/001-mips-add-cp0-compare-irq-function.patch
@@ -0,0 +1,29 @@
+--- a/arch/mips/kernel/traps.c
++++ b/arch/mips/kernel/traps.c
+@@ -54,6 +54,7 @@
+ #include <asm/types.h>
+ #include <asm/stacktrace.h>
+ #include <asm/uasm.h>
++#include <asm/time.h>
+ 
+ extern void check_wait(void);
+ extern asmlinkage void r4k_wait(void);
+@@ -1598,6 +1599,8 @@ void __cpuinit per_cpu_trap_init(bool is
+ 	if (cpu_has_mips_r2) {
+ 		cp0_compare_irq_shift = CAUSEB_TI - CAUSEB_IP;
+ 		cp0_compare_irq = (read_c0_intctl() >> INTCTLB_IPTI) & 7;
++		if (get_c0_compare_irq)
++			cp0_compare_irq = get_c0_compare_irq();
+ 		cp0_perfcount_irq = (read_c0_intctl() >> INTCTLB_IPPCI) & 7;
+ 		if (cp0_perfcount_irq == cp0_compare_irq)
+ 			cp0_perfcount_irq = -1;
+--- a/arch/mips/include/asm/time.h
++++ b/arch/mips/include/asm/time.h
+@@ -52,6 +52,7 @@ extern int (*perf_irq)(void);
+  */
+ #ifdef CONFIG_CEVT_R4K_LIB
+ extern unsigned int __weak get_c0_compare_int(void);
++extern unsigned int __weak get_c0_compare_irq(void);
+ extern int r4k_clockevent_init(void);
+ #endif
+ 
diff --git a/target/linux/ramips/patches-3.6/010-mtd_fix_cfi_cmdset_0002_erase_status_check.patch b/target/linux/ramips/patches-3.6/010-mtd_fix_cfi_cmdset_0002_erase_status_check.patch
new file mode 100644
index 0000000000..8d3dec9e53
--- /dev/null
+++ b/target/linux/ramips/patches-3.6/010-mtd_fix_cfi_cmdset_0002_erase_status_check.patch
@@ -0,0 +1,20 @@
+--- a/drivers/mtd/chips/cfi_cmdset_0002.c
++++ b/drivers/mtd/chips/cfi_cmdset_0002.c
+@@ -1860,7 +1860,7 @@ static int __xipram do_erase_chip(struct
+ 			chip->erase_suspended = 0;
+ 		}
+ 
+-		if (chip_ready(map, adr))
++		if (chip_good(map, adr, map_word_ff(map)))
+ 			break;
+ 
+ 		if (time_after(jiffies, timeo)) {
+@@ -1949,7 +1949,7 @@ static int __xipram do_erase_oneblock(st
+ 			chip->erase_suspended = 0;
+ 		}
+ 
+-		if (chip_ready(map, adr)) {
++		if (chip_good(map, adr, map_word_ff(map))) {
+ 			xip_enable(map, chip, adr);
+ 			break;
+ 		}
diff --git a/target/linux/ramips/patches-3.6/011-mtd-cfi_cmdset_0002-force-word-write.patch b/target/linux/ramips/patches-3.6/011-mtd-cfi_cmdset_0002-force-word-write.patch
new file mode 100644
index 0000000000..e60bdf5595
--- /dev/null
+++ b/target/linux/ramips/patches-3.6/011-mtd-cfi_cmdset_0002-force-word-write.patch
@@ -0,0 +1,63 @@
+Index: linux-3.6.6/drivers/mtd/chips/cfi_cmdset_0002.c
+===================================================================
+--- linux-3.6.6.orig/drivers/mtd/chips/cfi_cmdset_0002.c
++++ linux-3.6.6/drivers/mtd/chips/cfi_cmdset_0002.c
+@@ -39,7 +39,7 @@
+ #include <linux/mtd/xip.h>
+ 
+ #define AMD_BOOTLOC_BUG
+-#define FORCE_WORD_WRITE 0
++#define FORCE_WORD_WRITE 1
+ 
+ #define MAX_WORD_RETRIES 3
+ 
+@@ -50,7 +50,9 @@
+ 
+ static int cfi_amdstd_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
+ static int cfi_amdstd_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
++#if !FORCE_WORD_WRITE
+ static int cfi_amdstd_write_buffers(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
++#endif
+ static int cfi_amdstd_erase_chip(struct mtd_info *, struct erase_info *);
+ static int cfi_amdstd_erase_varsize(struct mtd_info *, struct erase_info *);
+ static void cfi_amdstd_sync (struct mtd_info *);
+@@ -186,6 +188,7 @@ static void fixup_amd_bootblock(struct m
+ }
+ #endif
+ 
++#if !FORCE_WORD_WRITE
+ static void fixup_use_write_buffers(struct mtd_info *mtd)
+ {
+ 	struct map_info *map = mtd->priv;
+@@ -195,6 +198,7 @@ static void fixup_use_write_buffers(stru
+ 		mtd->_write = cfi_amdstd_write_buffers;
+ 	}
+ }
++#endif /* !FORCE_WORD_WRITE */
+ 
+ /* Atmel chips don't use the same PRI format as AMD chips */
+ static void fixup_convert_atmel_pri(struct mtd_info *mtd)
+@@ -1376,6 +1380,7 @@ static int cfi_amdstd_write_words(struct
+ /*
+  * FIXME: interleaved mode not tested, and probably not supported!
+  */
++#if !FORCE_WORD_WRITE
+ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip,
+ 				    unsigned long adr, const u_char *buf,
+ 				    int len)
+@@ -1488,7 +1493,6 @@ static int __xipram do_write_buffer(stru
+ 	return ret;
+ }
+ 
+-
+ static int cfi_amdstd_write_buffers(struct mtd_info *mtd, loff_t to, size_t len,
+ 				    size_t *retlen, const u_char *buf)
+ {
+@@ -1563,6 +1567,7 @@ static int cfi_amdstd_write_buffers(stru
+ 
+ 	return 0;
+ }
++#endif /* !FORCE_WORD_WRITE */
+ 
+ /*
+  * Wait for the flash chip to become ready to write data
diff --git a/target/linux/ramips/patches-3.6/100-mips-ralink-core.patch b/target/linux/ramips/patches-3.6/100-mips-ralink-core.patch
new file mode 100644
index 0000000000..11982ce3b1
--- /dev/null
+++ b/target/linux/ramips/patches-3.6/100-mips-ralink-core.patch
@@ -0,0 +1,39 @@
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -99,6 +99,9 @@ config ATH79
+ 	help
+ 	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
+ 
++config MIPS_RALINK
++	bool "Ralink MIPS SoC based boards"
++
+ config BCM47XX
+ 	bool "Broadcom BCM47XX based boards"
+ 	select CEVT_R4K
+@@ -846,6 +849,7 @@ source "arch/mips/jz4740/Kconfig"
+ source "arch/mips/lantiq/Kconfig"
+ source "arch/mips/lasat/Kconfig"
+ source "arch/mips/pmc-sierra/Kconfig"
++source "arch/mips/ralink/Kconfig"
+ source "arch/mips/powertv/Kconfig"
+ source "arch/mips/sgi-ip27/Kconfig"
+ source "arch/mips/sibyte/Kconfig"
+@@ -1188,7 +1192,7 @@ config BOOT_ELF32
+ 
+ config MIPS_L1_CACHE_SHIFT
+ 	int
+-	default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
++	default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || RALINK_RT288X
+ 	default "6" if MIPS_CPU_SCACHE
+ 	default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
+ 	default "5"
+--- a/arch/mips/Kbuild.platforms
++++ b/arch/mips/Kbuild.platforms
+@@ -22,6 +22,7 @@ platforms += pmc-sierra
+ platforms += pnx833x
+ platforms += pnx8550
+ platforms += powertv
++platforms += ralink
+ platforms += rb532
+ platforms += sgi-ip22
+ platforms += sgi-ip27
diff --git a/target/linux/ramips/patches-3.6/101-rt288x_serial_driver_hack.patch b/target/linux/ramips/patches-3.6/101-rt288x_serial_driver_hack.patch
new file mode 100644
index 0000000000..5f059cd1b7
--- /dev/null
+++ b/target/linux/ramips/patches-3.6/101-rt288x_serial_driver_hack.patch
@@ -0,0 +1,89 @@
+--- a/drivers/tty/serial/8250/Kconfig
++++ b/drivers/tty/serial/8250/Kconfig
+@@ -249,6 +249,14 @@ config SERIAL_8250_ACORN
+ 	  system, say Y to this option.  The driver can handle 1, 2, or 3 port
+ 	  cards.  If unsure, say N.
+ 
++config SERIAL_8250_RT288X
++	bool "Ralink RT288x/RT305x/RT3662/RT3883 serial port support"
++	depends on SERIAL_8250 != n && (SOC_RT288X || SOC_RT305X || SOC_RT3883)
++	help
++	  If you have a Ralink RT288x/RT305x SoC based board and want to use the
++	  serial port, say Y to this option. The driver can handle up to 2 serial
++	  ports. If unsure, say N.
++
+ config SERIAL_8250_RM9K
+ 	bool "Support for MIPS RM9xxx integrated serial port"
+ 	depends on SERIAL_8250 != n && SERIAL_RM9000
+--- a/include/linux/serial_core.h
++++ b/include/linux/serial_core.h
+@@ -325,7 +325,7 @@ struct uart_port {
+ #define UPIO_HUB6		(1)
+ #define UPIO_MEM		(2)
+ #define UPIO_MEM32		(3)
+-#define UPIO_AU			(4)			/* Au1x00 type IO */
++#define UPIO_AU			(4)			/* Au1x00 and RT288x type IO */
+ #define UPIO_TSI		(5)			/* Tsi108/109 type IO */
+ #define UPIO_RM9000		(6)			/* RM9000 type IO */
+ 
+--- a/drivers/tty/serial/8250/8250.c
++++ b/drivers/tty/serial/8250/8250.c
+@@ -305,9 +305,9 @@ static void default_serial_dl_write(stru
+ 	serial_out(up, UART_DLM, value >> 8 & 0xff);
+ }
+ 
+-#ifdef CONFIG_MIPS_ALCHEMY
++#if defined CONFIG_MIPS_ALCHEMY || defined (CONFIG_SERIAL_8250_RT288X)
+ 
+-/* Au1x00 UART hardware has a weird register layout */
++/* Au1x00 and RT288x UART hardware has a weird register layout */
+ static const u8 au_io_in_map[] = {
+ 	[UART_RX]  = 0,
+ 	[UART_IER] = 2,
+@@ -486,7 +486,7 @@ static void set_io_from_upio(struct uart
+ 		break;
+ #endif
+ 
+-#ifdef CONFIG_MIPS_ALCHEMY
++#if defined(CONFIG_MIPS_ALCHEMY) || defined(CONFIG_SERIAL_8250_RT288X)
+ 	case UPIO_AU:
+ 		p->serial_in = au_serial_in;
+ 		p->serial_out = au_serial_out;
+@@ -698,22 +698,19 @@ static int size_fifo(struct uart_8250_po
+  */
+ static unsigned int autoconfig_read_divisor_id(struct uart_8250_port *p)
+ {
+-	unsigned char old_dll, old_dlm, old_lcr;
++	unsigned char old_lcr;
++	unsigned int old_dl;
+ 	unsigned int id;
+ 
+ 	old_lcr = serial_in(p, UART_LCR);
+ 	serial_out(p, UART_LCR, UART_LCR_CONF_MODE_A);
+ 
+-	old_dll = serial_in(p, UART_DLL);
+-	old_dlm = serial_in(p, UART_DLM);
++	old_dl = serial_dl_read(p);
+ 
+-	serial_out(p, UART_DLL, 0);
+-	serial_out(p, UART_DLM, 0);
++	serial_dl_write(p, 0);
++	id = serial_dl_read(p);
+ 
+-	id = serial_in(p, UART_DLL) | serial_in(p, UART_DLM) << 8;
+-
+-	serial_out(p, UART_DLL, old_dll);
+-	serial_out(p, UART_DLM, old_dlm);
++	serial_dl_write(p, old_dl);
+ 	serial_out(p, UART_LCR, old_lcr);
+ 
+ 	return id;
+@@ -839,7 +836,7 @@ static int broken_efr(struct uart_8250_p
+ 	/*
+ 	 * Exar ST16C2550 "A2" devices incorrectly detect as
+ 	 * having an EFR, and report an ID of 0x0201.  See
+-	 * http://linux.derkeiler.com/Mailing-Lists/Kernel/2004-11/4812.html 
++	 * http://linux.derkeiler.com/Mailing-Lists/Kernel/2004-11/4812.html
+ 	 */
+ 	if (autoconfig_read_divisor_id(up) == 0x0201 && size_fifo(up) == 16)
+ 		return 1;
diff --git a/target/linux/ramips/patches-3.6/102-rt288x-pci-driver-hook.patch b/target/linux/ramips/patches-3.6/102-rt288x-pci-driver-hook.patch
new file mode 100644
index 0000000000..a76603f144
--- /dev/null
+++ b/target/linux/ramips/patches-3.6/102-rt288x-pci-driver-hook.patch
@@ -0,0 +1,10 @@
+--- a/arch/mips/pci/Makefile
++++ b/arch/mips/pci/Makefile
+@@ -21,6 +21,7 @@ obj-$(CONFIG_BCM63XX)		+= pci-bcm63xx.o
+ obj-$(CONFIG_MIPS_ALCHEMY)	+= pci-alchemy.o
+ obj-$(CONFIG_SOC_AR71XX)	+= pci-ar71xx.o
+ obj-$(CONFIG_PCI_AR724X)	+= pci-ar724x.o
++obj-$(CONFIG_SOC_RT288X)	+= pci-rt288x.o
+ 
+ #
+ # These are still pretty much in the old state, watch, go blind.
diff --git a/target/linux/ramips/patches-3.6/103-ethernet.patch b/target/linux/ramips/patches-3.6/103-ethernet.patch
new file mode 100644
index 0000000000..a3b402fb8e
--- /dev/null
+++ b/target/linux/ramips/patches-3.6/103-ethernet.patch
@@ -0,0 +1,20 @@
+--- a/drivers/net/ethernet/Kconfig
++++ b/drivers/net/ethernet/Kconfig
+@@ -145,6 +145,7 @@ source "drivers/net/ethernet/packetengin
+ source "drivers/net/ethernet/pasemi/Kconfig"
+ source "drivers/net/ethernet/qlogic/Kconfig"
+ source "drivers/net/ethernet/racal/Kconfig"
++source "drivers/net/ethernet/ramips/Kconfig"
+ source "drivers/net/ethernet/realtek/Kconfig"
+ source "drivers/net/ethernet/renesas/Kconfig"
+ source "drivers/net/ethernet/rdc/Kconfig"
+--- a/drivers/net/ethernet/Makefile
++++ b/drivers/net/ethernet/Makefile
+@@ -55,6 +55,7 @@ obj-$(CONFIG_NET_PACKET_ENGINE) += packe
+ obj-$(CONFIG_NET_VENDOR_PASEMI) += pasemi/
+ obj-$(CONFIG_NET_VENDOR_QLOGIC) += qlogic/
+ obj-$(CONFIG_NET_VENDOR_RACAL) += racal/
++obj-$(CONFIG_NET_RAMIPS) += ramips/
+ obj-$(CONFIG_NET_VENDOR_REALTEK) += realtek/
+ obj-$(CONFIG_SH_ETH) += renesas/
+ obj-$(CONFIG_NET_VENDOR_RDC) += rdc/
diff --git a/target/linux/ramips/patches-3.6/104-ramips-watchdog-driver.patch b/target/linux/ramips/patches-3.6/104-ramips-watchdog-driver.patch
new file mode 100644
index 0000000000..a7df80b804
--- /dev/null
+++ b/target/linux/ramips/patches-3.6/104-ramips-watchdog-driver.patch
@@ -0,0 +1,26 @@
+--- a/drivers/watchdog/Kconfig
++++ b/drivers/watchdog/Kconfig
+@@ -1064,6 +1064,13 @@ config LANTIQ_WDT
+ 	help
+ 	  Hardware driver for the Lantiq SoC Watchdog Timer.
+ 
++config RAMIPS_WDT
++	tristate "Ralink RT288X/RT305X Watchdog Timer"
++	depends on (SOC_RT288X || SOC_RT305X || SOC_RT3883)
++	help
++	  Hardware driver for the built-in watchdog timer on the
++	  Ralink RT288X/RT305X SoCs.
++
+ # PARISC Architecture
+ 
+ # POWERPC Architecture
+--- a/drivers/watchdog/Makefile
++++ b/drivers/watchdog/Makefile
+@@ -132,6 +132,7 @@ obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
+ obj-$(CONFIG_OCTEON_WDT) += octeon-wdt.o
+ octeon-wdt-y := octeon-wdt-main.o octeon-wdt-nmi.o
+ obj-$(CONFIG_LANTIQ_WDT) += lantiq_wdt.o
++obj-$(CONFIG_RAMIPS_WDT) += ramips_wdt.o
+ 
+ # PARISC Architecture
+ 
diff --git a/target/linux/ramips/patches-3.6/105-ramips-spi-driver.patch b/target/linux/ramips/patches-3.6/105-ramips-spi-driver.patch
new file mode 100644
index 0000000000..913a7d3aae
--- /dev/null
+++ b/target/linux/ramips/patches-3.6/105-ramips-spi-driver.patch
@@ -0,0 +1,25 @@
+--- a/drivers/spi/Kconfig
++++ b/drivers/spi/Kconfig
+@@ -309,6 +309,12 @@ config SPI_RSPI
+ 	help
+ 	  SPI driver for Renesas RSPI blocks.
+ 
++config SPI_RAMIPS
++	tristate "Ralink RT288x/RT305x/RT3662 SPI Controller"
++	depends on (SOC_RT288X || SOC_RT305X || SOC_RT3883)
++	help
++	  This selects a driver for the Ralink RT288x/RT305x SPI Controller.
++
+ config SPI_S3C24XX
+ 	tristate "Samsung S3C24XX series SPI"
+ 	depends on ARCH_S3C24XX && EXPERIMENTAL
+--- a/drivers/spi/Makefile
++++ b/drivers/spi/Makefile
+@@ -47,6 +47,7 @@ obj-$(CONFIG_SPI_PL022)			+= spi-pl022.o
+ obj-$(CONFIG_SPI_PPC4xx)		+= spi-ppc4xx.o
+ obj-$(CONFIG_SPI_PXA2XX)		+= spi-pxa2xx.o
+ obj-$(CONFIG_SPI_PXA2XX_PCI)		+= spi-pxa2xx-pci.o
++obj-$(CONFIG_SPI_RAMIPS)		+= spi-ramips.o
+ obj-$(CONFIG_SPI_RSPI)			+= spi-rspi.o
+ obj-$(CONFIG_SPI_S3C24XX)		+= spi-s3c24xx-hw.o
+ spi-s3c24xx-hw-y			:= spi-s3c24xx.o
diff --git a/target/linux/ramips/patches-3.6/105-usb_dwc_otg.patch b/target/linux/ramips/patches-3.6/105-usb_dwc_otg.patch
new file mode 100644
index 0000000000..9f32893c66
--- /dev/null
+++ b/target/linux/ramips/patches-3.6/105-usb_dwc_otg.patch
@@ -0,0 +1,20 @@
+--- a/drivers/usb/Kconfig
++++ b/drivers/usb/Kconfig
+@@ -187,4 +187,6 @@ source "drivers/usb/gadget/Kconfig"
+ 
+ source "drivers/usb/otg/Kconfig"
+ 
++source "drivers/usb/dwc_otg/Kconfig"
++
+ endif # USB_SUPPORT
+--- a/drivers/usb/Makefile
++++ b/drivers/usb/Makefile
+@@ -52,6 +52,8 @@ obj-$(CONFIG_EARLY_PRINTK_DBGP)	+= early
+ obj-$(CONFIG_USB_ATM)		+= atm/
+ obj-$(CONFIG_USB_SPEEDTOUCH)	+= atm/
+ 
++obj-$(CONFIG_DWC_OTG)		+= dwc_otg/
++
+ obj-$(CONFIG_USB_MUSB_HDRC)	+= musb/
+ obj-$(CONFIG_USB_CHIPIDEA)	+= chipidea/
+ obj-$(CONFIG_USB_RENESAS_USBHS)	+= renesas_usbhs/
diff --git a/target/linux/ramips/patches-3.6/106-rt3883-pci-support.patch b/target/linux/ramips/patches-3.6/106-rt3883-pci-support.patch
new file mode 100644
index 0000000000..9f5ef9f73f
--- /dev/null
+++ b/target/linux/ramips/patches-3.6/106-rt3883-pci-support.patch
@@ -0,0 +1,10 @@
+--- a/arch/mips/pci/Makefile
++++ b/arch/mips/pci/Makefile
+@@ -22,6 +22,7 @@ obj-$(CONFIG_MIPS_ALCHEMY)	+= pci-alchem
+ obj-$(CONFIG_SOC_AR71XX)	+= pci-ar71xx.o
+ obj-$(CONFIG_PCI_AR724X)	+= pci-ar724x.o
+ obj-$(CONFIG_SOC_RT288X)	+= pci-rt288x.o
++obj-$(CONFIG_SOC_RT3883)	+= pci-rt3883.o
+ 
+ #
+ # These are still pretty much in the old state, watch, go blind.
diff --git a/target/linux/ramips/patches-3.6/200-rt3883-ehci-glue.patch b/target/linux/ramips/patches-3.6/200-rt3883-ehci-glue.patch
new file mode 100644
index 0000000000..2e1439c2ab
--- /dev/null
+++ b/target/linux/ramips/patches-3.6/200-rt3883-ehci-glue.patch
@@ -0,0 +1,32 @@
+--- a/drivers/usb/host/Kconfig
++++ b/drivers/usb/host/Kconfig
+@@ -235,6 +235,15 @@ config USB_EHCI_ATH79
+ 	  Enables support for the built-in EHCI controller present
+ 	  on the Atheros AR7XXX/AR9XXX SoCs.
+ 
++config USB_EHCI_RT3883
++	bool "EHCI support for Ralink RT3662/RT3883 SoCs"
++	depends on USB_EHCI_HCD && ( SOC_RT3883 || SOC_RT305X )
++	select USB_EHCI_ROOT_HUB_TT
++	default y
++	---help---
++	  Enables support for the built-in EHCI controller present
++	  on the Ralink RT3883 SoC.
++
+ config USB_OXU210HP_HCD
+ 	tristate "OXU210HP HCD support"
+ 	depends on USB
+--- a/drivers/usb/host/ehci-hcd.c
++++ b/drivers/usb/host/ehci-hcd.c
+@@ -1339,6 +1339,11 @@ MODULE_LICENSE ("GPL");
+ #define PLATFORM_DRIVER		ehci_platform_driver
+ #endif
+ 
++#ifdef CONFIG_USB_EHCI_RT3883
++#include "ehci-rt3883.c"
++#define PLATFORM_DRIVER		ehci_rt3883_driver
++#endif
++
+ #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
+     !defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) && \
+     !defined(XILINX_OF_PLATFORM_DRIVER)
diff --git a/target/linux/ramips/patches-3.6/201-rt3883-ohci-glue.patch b/target/linux/ramips/patches-3.6/201-rt3883-ohci-glue.patch
new file mode 100644
index 0000000000..d55bac4fed
--- /dev/null
+++ b/target/linux/ramips/patches-3.6/201-rt3883-ohci-glue.patch
@@ -0,0 +1,31 @@
+--- a/drivers/usb/host/Kconfig
++++ b/drivers/usb/host/Kconfig
+@@ -342,6 +342,14 @@ config USB_OHCI_ATH79
+ 	  Enables support for the built-in OHCI controller present on the
+ 	  Atheros AR71XX/AR7240 SoCs.
+ 
++config USB_OHCI_RT3883
++	bool "USB OHCI support for the Ralink RT3883 SoCs"
++	depends on USB_OHCI_HCD && ( SOC_RT3883 || SOC_RT305X )
++	default y
++	help
++	  Enables support for the built-in OHCI controller present on the
++	  Ralink RT3883 SoC.
++
+ config USB_OHCI_HCD_PPC_SOC
+ 	bool "OHCI support for on-chip PPC USB controller"
+ 	depends on USB_OHCI_HCD && (STB03xxx || PPC_MPC52xx)
+--- a/drivers/usb/host/ohci-hcd.c
++++ b/drivers/usb/host/ohci-hcd.c
+@@ -1120,6 +1120,11 @@ MODULE_LICENSE ("GPL");
+ #define PLATFORM_DRIVER		ohci_platform_driver
+ #endif
+ 
++#ifdef CONFIG_USB_OHCI_RT3883
++#include "ohci-rt3883.c"
++#define PLATFORM_DRIVER		ohci_rt3883_driver
++#endif
++
+ #if	!defined(PCI_DRIVER) &&		\
+ 	!defined(PLATFORM_DRIVER) &&	\
+ 	!defined(OMAP1_PLATFORM_DRIVER) &&	\