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openwrt/target/linux/brcm2708/patches-3.10/0027-Add-FIQ-patch-to-dwc_otg-driver.-Enable-with-dwc_otg.patch
Florian Fainelli 6918ea2484 brcm2708: update 3.10 patches with raspberrypi/rpi-3.10.y of 27 Apr. 2014 
Update the 3.10 rasperry patches by rebasing raspberry/rpi-3.10-y
against linux-stable/v3.10.49.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 42678
2014-09-27 19:10:51 +00:00

1163 lines
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From 5e4c6e64d0c5fd6adc6c68cc1366f0f7c0ad84ba Mon Sep 17 00:00:00 2001
From: popcornmix <popcornmix@gmail.com>
Date: Wed, 3 Jul 2013 00:46:42 +0100
Subject: [PATCH 027/196] Add FIQ patch to dwc_otg driver. Enable with
dwc_otg.fiq_fix_enable=1. Should give about 10% more ARM performance. Thanks
to Gordon and Costas
---
arch/arm/Kconfig | 1 +
arch/arm/include/asm/fiq.h | 1 +
arch/arm/kernel/fiq.c | 1 +
arch/arm/kernel/fiqasm.S | 7 ++
arch/arm/mach-bcm2708/armctrl.c | 19 ++-
arch/arm/mach-bcm2708/bcm2708.c | 29 ++++-
arch/arm/mach-bcm2708/include/mach/irqs.h | 159 +++++++++++++-------------
arch/arm/mach-bcm2708/include/mach/platform.h | 2 +
drivers/usb/host/dwc_otg/Makefile | 1 +
drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c | 14 ++-
drivers/usb/host/dwc_otg/dwc_otg_dbg.h | 1 +
drivers/usb/host/dwc_otg/dwc_otg_driver.c | 37 +++++-
drivers/usb/host/dwc_otg/dwc_otg_hcd.c | 5 +
drivers/usb/host/dwc_otg/dwc_otg_hcd.h | 2 +-
drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h | 5 +
drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c | 154 ++++++++++++++++++++++---
drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c | 45 ++++++++
drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c | 20 +++-
drivers/usb/host/dwc_otg/dwc_otg_mphi_fix.c | 113 ++++++++++++++++++
drivers/usb/host/dwc_otg/dwc_otg_mphi_fix.h | 36 ++++++
drivers/usb/host/dwc_otg/dwc_otg_os_dep.h | 3 +
21 files changed, 545 insertions(+), 110 deletions(-)
create mode 100755 drivers/usb/host/dwc_otg/dwc_otg_mphi_fix.c
create mode 100755 drivers/usb/host/dwc_otg/dwc_otg_mphi_fix.h
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index eb291c7..5468f1f 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -373,6 +373,7 @@ config ARCH_BCM2708
select ARM_ERRATA_411920
select MACH_BCM2708
select VC4
+ select FIQ
help
This enables support for Broadcom BCM2708 boards.
diff --git a/arch/arm/include/asm/fiq.h b/arch/arm/include/asm/fiq.h
index d493d0b..f1a131b 100644
--- a/arch/arm/include/asm/fiq.h
+++ b/arch/arm/include/asm/fiq.h
@@ -42,6 +42,7 @@ extern void disable_fiq(int fiq);
/* helpers defined in fiqasm.S: */
extern void __set_fiq_regs(unsigned long const *regs);
extern void __get_fiq_regs(unsigned long *regs);
+extern void __FIQ_Branch(unsigned long *regs);
static inline void set_fiq_regs(struct pt_regs const *regs)
{
diff --git a/arch/arm/kernel/fiq.c b/arch/arm/kernel/fiq.c
index 25442f4..74ff4ba 100644
--- a/arch/arm/kernel/fiq.c
+++ b/arch/arm/kernel/fiq.c
@@ -145,6 +145,7 @@ void disable_fiq(int fiq)
EXPORT_SYMBOL(set_fiq_handler);
EXPORT_SYMBOL(__set_fiq_regs); /* defined in fiqasm.S */
EXPORT_SYMBOL(__get_fiq_regs); /* defined in fiqasm.S */
+EXPORT_SYMBOL(__FIQ_Branch); /* defined in fiqasm.S */
EXPORT_SYMBOL(claim_fiq);
EXPORT_SYMBOL(release_fiq);
EXPORT_SYMBOL(enable_fiq);
diff --git a/arch/arm/kernel/fiqasm.S b/arch/arm/kernel/fiqasm.S
index 207f9d6..93eddfe 100644
--- a/arch/arm/kernel/fiqasm.S
+++ b/arch/arm/kernel/fiqasm.S
@@ -25,6 +25,9 @@
ENTRY(__set_fiq_regs)
mov r2, #PSR_I_BIT | PSR_F_BIT | FIQ_MODE
mrs r1, cpsr
+@@@@@@@@@@@@@@@ hack: enable the fiq here to keep usb driver happy
+ and r1, #~PSR_F_BIT
+@@@@@@@@@@@@@@@ endhack: (need to find better place for this to happen)
msr cpsr_c, r2 @ select FIQ mode
mov r0, r0 @ avoid hazard prior to ARMv4
ldmia r0!, {r8 - r12}
@@ -47,3 +50,7 @@ ENTRY(__get_fiq_regs)
mov r0, r0 @ avoid hazard prior to ARMv4
mov pc, lr
ENDPROC(__get_fiq_regs)
+
+ENTRY(__FIQ_Branch)
+ mov pc, r8
+ENDPROC(__FIQ_Branch)
diff --git a/arch/arm/mach-bcm2708/armctrl.c b/arch/arm/mach-bcm2708/armctrl.c
index da18725..274aa30 100644
--- a/arch/arm/mach-bcm2708/armctrl.c
+++ b/arch/arm/mach-bcm2708/armctrl.c
@@ -52,8 +52,12 @@ static void armctrl_mask_irq(struct irq_data *d)
0
};
- unsigned int data = (unsigned int)irq_get_chip_data(d->irq);
- writel(1 << (data & 0x1f), __io_address(disables[(data >> 5) & 0x3]));
+ if (d->irq >= FIQ_START) {
+ writel(0, __io_address(ARM_IRQ_FAST));
+ } else {
+ unsigned int data = (unsigned int)irq_get_chip_data(d->irq);
+ writel(1 << (data & 0x1f), __io_address(disables[(data >> 5) & 0x3]));
+ }
}
static void armctrl_unmask_irq(struct irq_data *d)
@@ -65,8 +69,14 @@ static void armctrl_unmask_irq(struct irq_data *d)
0
};
- unsigned int data = (unsigned int)irq_get_chip_data(d->irq);
- writel(1 << (data & 0x1f), __io_address(enables[(data >> 5) & 0x3]));
+ if (d->irq >= FIQ_START) {
+ unsigned int data =
+ (unsigned int)irq_get_chip_data(d->irq) - FIQ_START;
+ writel(0x80 | data, __io_address(ARM_IRQ_FAST));
+ } else {
+ unsigned int data = (unsigned int)irq_get_chip_data(d->irq);
+ writel(1 << (data & 0x1f), __io_address(enables[(data >> 5) & 0x3]));
+ }
}
#if defined(CONFIG_PM)
@@ -204,5 +214,6 @@ int __init armctrl_init(void __iomem * base, unsigned int irq_start,
}
armctrl_pm_register(base, irq_start, resume_sources);
+ init_FIQ(FIQ_START);
return 0;
}
diff --git a/arch/arm/mach-bcm2708/bcm2708.c b/arch/arm/mach-bcm2708/bcm2708.c
index 18f7ede..b9aa2de 100644
--- a/arch/arm/mach-bcm2708/bcm2708.c
+++ b/arch/arm/mach-bcm2708/bcm2708.c
@@ -309,12 +309,32 @@ static struct resource bcm2708_usb_resources[] = {
.flags = IORESOURCE_MEM,
},
[1] = {
- .start = IRQ_USB,
- .end = IRQ_USB,
+ .start = MPHI_BASE,
+ .end = MPHI_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [2] = {
+ .start = IRQ_HOSTPORT,
+ .end = IRQ_HOSTPORT,
.flags = IORESOURCE_IRQ,
},
};
+bool fiq_fix_enable = true;
+
+static struct resource bcm2708_usb_resources_no_fiq_fix[] = {
+ [0] = {
+ .start = USB_BASE,
+ .end = USB_BASE + SZ_128K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_USB,
+ .end = IRQ_USB,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
static u64 usb_dmamask = DMA_BIT_MASK(DMA_MASK_BITS_COMMON);
static struct platform_device bcm2708_usb_device = {
@@ -642,6 +662,11 @@ void __init bcm2708_init(void)
#endif
bcm_register_device(&bcm2708_systemtimer_device);
bcm_register_device(&bcm2708_fb_device);
+ if (!fiq_fix_enable)
+ {
+ bcm2708_usb_device.resource = bcm2708_usb_resources_no_fiq_fix;
+ bcm2708_usb_device.num_resources = ARRAY_SIZE(bcm2708_usb_resources_no_fiq_fix);
+ }
bcm_register_device(&bcm2708_usb_device);
bcm_register_device(&bcm2708_uart1_device);
bcm_register_device(&bcm2708_powerman_device);
diff --git a/arch/arm/mach-bcm2708/include/mach/irqs.h b/arch/arm/mach-bcm2708/include/mach/irqs.h
index e8bb068..9aaedf1 100644
--- a/arch/arm/mach-bcm2708/include/mach/irqs.h
+++ b/arch/arm/mach-bcm2708/include/mach/irqs.h
@@ -106,91 +106,94 @@
#define IRQ_PENDING1 (IRQ_ARMCTRL_START + INTERRUPT_PENDING1)
#define IRQ_PENDING2 (IRQ_ARMCTRL_START + INTERRUPT_PENDING2)
+#define FIQ_START HARD_IRQS
+
/*
* FIQ interrupts definitions are the same as the INT definitions.
*/
-#define FIQ_TIMER0 INT_TIMER0
-#define FIQ_TIMER1 INT_TIMER1
-#define FIQ_TIMER2 INT_TIMER2
-#define FIQ_TIMER3 INT_TIMER3
-#define FIQ_CODEC0 INT_CODEC0
-#define FIQ_CODEC1 INT_CODEC1
-#define FIQ_CODEC2 INT_CODEC2
-#define FIQ_JPEG INT_JPEG
-#define FIQ_ISP INT_ISP
-#define FIQ_USB INT_USB
-#define FIQ_3D INT_3D
-#define FIQ_TRANSPOSER INT_TRANSPOSER
-#define FIQ_MULTICORESYNC0 INT_MULTICORESYNC0
-#define FIQ_MULTICORESYNC1 INT_MULTICORESYNC1
-#define FIQ_MULTICORESYNC2 INT_MULTICORESYNC2
-#define FIQ_MULTICORESYNC3 INT_MULTICORESYNC3
-#define FIQ_DMA0 INT_DMA0
-#define FIQ_DMA1 INT_DMA1
-#define FIQ_DMA2 INT_DMA2
-#define FIQ_DMA3 INT_DMA3
-#define FIQ_DMA4 INT_DMA4
-#define FIQ_DMA5 INT_DMA5
-#define FIQ_DMA6 INT_DMA6
-#define FIQ_DMA7 INT_DMA7
-#define FIQ_DMA8 INT_DMA8
-#define FIQ_DMA9 INT_DMA9
-#define FIQ_DMA10 INT_DMA10
-#define FIQ_DMA11 INT_DMA11
-#define FIQ_DMA12 INT_DMA12
-#define FIQ_AUX INT_AUX
-#define FIQ_ARM INT_ARM
-#define FIQ_VPUDMA INT_VPUDMA
-#define FIQ_HOSTPORT INT_HOSTPORT
-#define FIQ_VIDEOSCALER INT_VIDEOSCALER
-#define FIQ_CCP2TX INT_CCP2TX
-#define FIQ_SDC INT_SDC
-#define FIQ_DSI0 INT_DSI0
-#define FIQ_AVE INT_AVE
-#define FIQ_CAM0 INT_CAM0
-#define FIQ_CAM1 INT_CAM1
-#define FIQ_HDMI0 INT_HDMI0
-#define FIQ_HDMI1 INT_HDMI1
-#define FIQ_PIXELVALVE1 INT_PIXELVALVE1
-#define FIQ_I2CSPISLV INT_I2CSPISLV
-#define FIQ_DSI1 INT_DSI1
-#define FIQ_PWA0 INT_PWA0
-#define FIQ_PWA1 INT_PWA1
-#define FIQ_CPR INT_CPR
-#define FIQ_SMI INT_SMI
-#define FIQ_GPIO0 INT_GPIO0
-#define FIQ_GPIO1 INT_GPIO1
-#define FIQ_GPIO2 INT_GPIO2
-#define FIQ_GPIO3 INT_GPIO3
-#define FIQ_I2C INT_I2C
-#define FIQ_SPI INT_SPI
-#define FIQ_I2SPCM INT_I2SPCM
-#define FIQ_SDIO INT_SDIO
-#define FIQ_UART INT_UART
-#define FIQ_SLIMBUS INT_SLIMBUS
-#define FIQ_VEC INT_VEC
-#define FIQ_CPG INT_CPG
-#define FIQ_RNG INT_RNG
-#define FIQ_ARASANSDIO INT_ARASANSDIO
-#define FIQ_AVSPMON INT_AVSPMON
+#define FIQ_TIMER0 (FIQ_START+INTERRUPT_TIMER0)
+#define FIQ_TIMER1 (FIQ_START+INTERRUPT_TIMER1)
+#define FIQ_TIMER2 (FIQ_START+INTERRUPT_TIMER2)
+#define FIQ_TIMER3 (FIQ_START+INTERRUPT_TIMER3)
+#define FIQ_CODEC0 (FIQ_START+INTERRUPT_CODEC0)
+#define FIQ_CODEC1 (FIQ_START+INTERRUPT_CODEC1)
+#define FIQ_CODEC2 (FIQ_START+INTERRUPT_CODEC2)
+#define FIQ_JPEG (FIQ_START+INTERRUPT_JPEG)
+#define FIQ_ISP (FIQ_START+INTERRUPT_ISP)
+#define FIQ_USB (FIQ_START+INTERRUPT_USB)
+#define FIQ_3D (FIQ_START+INTERRUPT_3D)
+#define FIQ_TRANSPOSER (FIQ_START+INTERRUPT_TRANSPOSER)
+#define FIQ_MULTICORESYNC0 (FIQ_START+INTERRUPT_MULTICORESYNC0)
+#define FIQ_MULTICORESYNC1 (FIQ_START+INTERRUPT_MULTICORESYNC1)
+#define FIQ_MULTICORESYNC2 (FIQ_START+INTERRUPT_MULTICORESYNC2)
+#define FIQ_MULTICORESYNC3 (FIQ_START+INTERRUPT_MULTICORESYNC3)
+#define FIQ_DMA0 (FIQ_START+INTERRUPT_DMA0)
+#define FIQ_DMA1 (FIQ_START+INTERRUPT_DMA1)
+#define FIQ_DMA2 (FIQ_START+INTERRUPT_DMA2)
+#define FIQ_DMA3 (FIQ_START+INTERRUPT_DMA3)
+#define FIQ_DMA4 (FIQ_START+INTERRUPT_DMA4)
+#define FIQ_DMA5 (FIQ_START+INTERRUPT_DMA5)
+#define FIQ_DMA6 (FIQ_START+INTERRUPT_DMA6)
+#define FIQ_DMA7 (FIQ_START+INTERRUPT_DMA7)
+#define FIQ_DMA8 (FIQ_START+INTERRUPT_DMA8)
+#define FIQ_DMA9 (FIQ_START+INTERRUPT_DMA9)
+#define FIQ_DMA10 (FIQ_START+INTERRUPT_DMA10)
+#define FIQ_DMA11 (FIQ_START+INTERRUPT_DMA11)
+#define FIQ_DMA12 (FIQ_START+INTERRUPT_DMA12)
+#define FIQ_AUX (FIQ_START+INTERRUPT_AUX)
+#define FIQ_ARM (FIQ_START+INTERRUPT_ARM)
+#define FIQ_VPUDMA (FIQ_START+INTERRUPT_VPUDMA)
+#define FIQ_HOSTPORT (FIQ_START+INTERRUPT_HOSTPORT)
+#define FIQ_VIDEOSCALER (FIQ_START+INTERRUPT_VIDEOSCALER)
+#define FIQ_CCP2TX (FIQ_START+INTERRUPT_CCP2TX)
+#define FIQ_SDC (FIQ_START+INTERRUPT_SDC)
+#define FIQ_DSI0 (FIQ_START+INTERRUPT_DSI0)
+#define FIQ_AVE (FIQ_START+INTERRUPT_AVE)
+#define FIQ_CAM0 (FIQ_START+INTERRUPT_CAM0)
+#define FIQ_CAM1 (FIQ_START+INTERRUPT_CAM1)
+#define FIQ_HDMI0 (FIQ_START+INTERRUPT_HDMI0)
+#define FIQ_HDMI1 (FIQ_START+INTERRUPT_HDMI1)
+#define FIQ_PIXELVALVE1 (FIQ_START+INTERRUPT_PIXELVALVE1)
+#define FIQ_I2CSPISLV (FIQ_START+INTERRUPT_I2CSPISLV)
+#define FIQ_DSI1 (FIQ_START+INTERRUPT_DSI1)
+#define FIQ_PWA0 (FIQ_START+INTERRUPT_PWA0)
+#define FIQ_PWA1 (FIQ_START+INTERRUPT_PWA1)
+#define FIQ_CPR (FIQ_START+INTERRUPT_CPR)
+#define FIQ_SMI (FIQ_START+INTERRUPT_SMI)
+#define FIQ_GPIO0 (FIQ_START+INTERRUPT_GPIO0)
+#define FIQ_GPIO1 (FIQ_START+INTERRUPT_GPIO1)
+#define FIQ_GPIO2 (FIQ_START+INTERRUPT_GPIO2)
+#define FIQ_GPIO3 (FIQ_START+INTERRUPT_GPIO3)
+#define FIQ_I2C (FIQ_START+INTERRUPT_I2C)
+#define FIQ_SPI (FIQ_START+INTERRUPT_SPI)
+#define FIQ_I2SPCM (FIQ_START+INTERRUPT_I2SPCM)
+#define FIQ_SDIO (FIQ_START+INTERRUPT_SDIO)
+#define FIQ_UART (FIQ_START+INTERRUPT_UART)
+#define FIQ_SLIMBUS (FIQ_START+INTERRUPT_SLIMBUS)
+#define FIQ_VEC (FIQ_START+INTERRUPT_VEC)
+#define FIQ_CPG (FIQ_START+INTERRUPT_CPG)
+#define FIQ_RNG (FIQ_START+INTERRUPT_RNG)
+#define FIQ_ARASANSDIO (FIQ_START+INTERRUPT_ARASANSDIO)
+#define FIQ_AVSPMON (FIQ_START+INTERRUPT_AVSPMON)
-#define FIQ_ARM_TIMER INT_ARM_TIMER
-#define FIQ_ARM_MAILBOX INT_ARM_MAILBOX
-#define FIQ_ARM_DOORBELL_0 INT_ARM_DOORBELL_0
-#define FIQ_ARM_DOORBELL_1 INT_ARM_DOORBELL_1
-#define FIQ_VPU0_HALTED INT_VPU0_HALTED
-#define FIQ_VPU1_HALTED INT_VPU1_HALTED
-#define FIQ_ILLEGAL_TYPE0 INT_ILLEGAL_TYPE0
-#define FIQ_ILLEGAL_TYPE1 INT_ILLEGAL_TYPE1
-#define FIQ_PENDING1 INT_PENDING1
-#define FIQ_PENDING2 INT_PENDING2
+#define FIQ_ARM_TIMER (FIQ_START+INTERRUPT_ARM_TIMER)
+#define FIQ_ARM_MAILBOX (FIQ_START+INTERRUPT_ARM_MAILBOX)
+#define FIQ_ARM_DOORBELL_0 (FIQ_START+INTERRUPT_ARM_DOORBELL_0)
+#define FIQ_ARM_DOORBELL_1 (FIQ_START+INTERRUPT_ARM_DOORBELL_1)
+#define FIQ_VPU0_HALTED (FIQ_START+INTERRUPT_VPU0_HALTED)
+#define FIQ_VPU1_HALTED (FIQ_START+INTERRUPT_VPU1_HALTED)
+#define FIQ_ILLEGAL_TYPE0 (FIQ_START+INTERRUPT_ILLEGAL_TYPE0)
+#define FIQ_ILLEGAL_TYPE1 (FIQ_START+INTERRUPT_ILLEGAL_TYPE1)
+#define FIQ_PENDING1 (FIQ_START+INTERRUPT_PENDING1)
+#define FIQ_PENDING2 (FIQ_START+INTERRUPT_PENDING2)
-#define HARD_IRQS (64 + 21)
-#define GPIO_IRQ_START HARD_IRQS
+#define GPIO_IRQ_START (HARD_IRQS + FIQ_IRQS)
-#define GPIO_IRQS 32*5
+#define HARD_IRQS (64 + 21)
+#define FIQ_IRQS (64 + 21)
+#define GPIO_IRQS (32*5)
-#define NR_IRQS HARD_IRQS+GPIO_IRQS
+#define NR_IRQS HARD_IRQS+FIQ_IRQS+GPIO_IRQS
#endif /* _BCM2708_IRQS_H_ */
diff --git a/arch/arm/mach-bcm2708/include/mach/platform.h b/arch/arm/mach-bcm2708/include/mach/platform.h
index 4d3c15d..89e72d1 100644
--- a/arch/arm/mach-bcm2708/include/mach/platform.h
+++ b/arch/arm/mach-bcm2708/include/mach/platform.h
@@ -56,7 +56,9 @@
*/
#define BCM2708_PERI_BASE 0x20000000
+#define IC0_BASE (BCM2708_PERI_BASE + 0x2000)
#define ST_BASE (BCM2708_PERI_BASE + 0x3000) /* System Timer */
+#define MPHI_BASE (BCM2708_PERI_BASE + 0x6000) /* Message -based Parallel Host Interface */
#define DMA_BASE (BCM2708_PERI_BASE + 0x7000) /* DMA controller */
#define ARM_BASE (BCM2708_PERI_BASE + 0xB000) /* BCM2708 ARM control block */
#define PM_BASE (BCM2708_PERI_BASE + 0x100000) /* Power Management, Reset controller and Watchdog registers */
diff --git a/drivers/usb/host/dwc_otg/Makefile b/drivers/usb/host/dwc_otg/Makefile
index c4c6e4e..6bd6a2e 100644
--- a/drivers/usb/host/dwc_otg/Makefile
+++ b/drivers/usb/host/dwc_otg/Makefile
@@ -36,6 +36,7 @@ dwc_otg-objs += dwc_otg_cil.o dwc_otg_cil_intr.o
dwc_otg-objs += dwc_otg_pcd_linux.o dwc_otg_pcd.o dwc_otg_pcd_intr.o
dwc_otg-objs += dwc_otg_hcd.o dwc_otg_hcd_linux.o dwc_otg_hcd_intr.o dwc_otg_hcd_queue.o dwc_otg_hcd_ddma.o
dwc_otg-objs += dwc_otg_adp.o
+dwc_otg-objs += dwc_otg_mphi_fix.o
ifneq ($(CFI),)
dwc_otg-objs += dwc_otg_cfi.o
endif
diff --git a/drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c b/drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c
index 21804c4..b861b55 100644
--- a/drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c
+++ b/drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c
@@ -45,6 +45,9 @@
#include "dwc_otg_driver.h"
#include "dwc_otg_pcd.h"
#include "dwc_otg_hcd.h"
+#include "dwc_otg_mphi_fix.h"
+
+extern bool fiq_fix_enable;
#ifdef DEBUG
inline const char *op_state_str(dwc_otg_core_if_t * core_if)
@@ -1351,10 +1354,15 @@ static inline uint32_t dwc_otg_read_common_intr(dwc_otg_core_if_t * core_if)
gintsts.d32, gintmsk.d32);
}
#endif
- if (gahbcfg.b.glblintrmsk)
+ if (!fiq_fix_enable){
+ if (gahbcfg.b.glblintrmsk)
+ return ((gintsts.d32 & gintmsk.d32) & gintmsk_common.d32);
+ else
+ return 0;
+ }
+ else {
return ((gintsts.d32 & gintmsk.d32) & gintmsk_common.d32);
- else
- return 0;
+ }
}
diff --git a/drivers/usb/host/dwc_otg/dwc_otg_dbg.h b/drivers/usb/host/dwc_otg/dwc_otg_dbg.h
index 8681aa9..2ff1532 100644
--- a/drivers/usb/host/dwc_otg/dwc_otg_dbg.h
+++ b/drivers/usb/host/dwc_otg/dwc_otg_dbg.h
@@ -49,6 +49,7 @@ static inline uint32_t SET_DEBUG_LEVEL(const uint32_t new)
return old;
}
+#define DBG_USER (0x1)
/** When debug level has the DBG_CIL bit set, display CIL Debug messages. */
#define DBG_CIL (0x2)
/** When debug level has the DBG_CILV bit set, display CIL Verbose debug
diff --git a/drivers/usb/host/dwc_otg/dwc_otg_driver.c b/drivers/usb/host/dwc_otg/dwc_otg_driver.c
index e7f99e1..3ac720b 100644
--- a/drivers/usb/host/dwc_otg/dwc_otg_driver.c
+++ b/drivers/usb/host/dwc_otg/dwc_otg_driver.c
@@ -64,6 +64,8 @@ bool microframe_schedule=true;
static const char dwc_driver_name[] = "dwc_otg";
+extern void* dummy_send;
+
extern int pcd_init(
#ifdef LM_INTERFACE
struct lm_device *_dev
@@ -238,6 +240,10 @@ static struct dwc_otg_driver_module_params dwc_otg_module_params = {
.adp_enable = -1,
};
+//Global variable to switch the fiq fix on or off (declared in bcm2708.c)
+extern bool fiq_fix_enable;
+
+
/**
* This function shows the Driver Version.
*/
@@ -779,17 +785,33 @@ static int dwc_otg_driver_probe(
_dev->resource->start,
_dev->resource->end - _dev->resource->start + 1);
#if 1
- if (!request_mem_region(_dev->resource->start,
- _dev->resource->end - _dev->resource->start + 1,
+ if (!request_mem_region(_dev->resource[0].start,
+ _dev->resource[0].end - _dev->resource[0].start + 1,
"dwc_otg")) {
dev_dbg(&_dev->dev, "error reserving mapped memory\n");
retval = -EFAULT;
goto fail;
}
- dwc_otg_device->os_dep.base = ioremap_nocache(_dev->resource->start,
- _dev->resource->end -
- _dev->resource->start+1);
+ dwc_otg_device->os_dep.base = ioremap_nocache(_dev->resource[0].start,
+ _dev->resource[0].end -
+ _dev->resource[0].start+1);
+ if (fiq_fix_enable)
+ {
+ if (!request_mem_region(_dev->resource[1].start,
+ _dev->resource[1].end - _dev->resource[1].start + 1,
+ "dwc_otg")) {
+ dev_dbg(&_dev->dev, "error reserving mapped memory\n");
+ retval = -EFAULT;
+ goto fail;
+ }
+
+ dwc_otg_device->os_dep.mphi_base = ioremap_nocache(_dev->resource[1].start,
+ _dev->resource[1].end -
+ _dev->resource[1].start + 1);
+ dummy_send = (void *) kmalloc(16, GFP_ATOMIC);
+ }
+
#else
{
struct map_desc desc = {
@@ -1063,6 +1085,7 @@ static int __init dwc_otg_driver_init(void)
printk(KERN_ERR "%s retval=%d\n", __func__, retval);
return retval;
}
+ printk(KERN_DEBUG "dwc_otg: FIQ %s\n", fiq_fix_enable ? "enabled":"disabled");
error = driver_create_file(drv, &driver_attr_version);
#ifdef DEBUG
@@ -1343,6 +1366,10 @@ MODULE_PARM_DESC(otg_ver, "OTG revision supported 0=OTG 1.3 1=OTG 2.0");
module_param(microframe_schedule, bool, 0444);
MODULE_PARM_DESC(microframe_schedule, "Enable the microframe scheduler");
+
+module_param(fiq_fix_enable, bool, 0444);
+MODULE_PARM_DESC(fiq_fix_enable, "Enable the fiq fix");
+
/** @page "Module Parameters"
*
* The following parameters may be specified when starting the module.
diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c
index 434d0c4..20f989e 100644
--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c
+++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c
@@ -53,6 +53,8 @@ static int last_sel_trans_num_avail_hc_at_start = 0;
static int last_sel_trans_num_avail_hc_at_end = 0;
#endif /* DEBUG_HOST_CHANNELS */
+extern int g_next_sched_frame, g_np_count, g_np_sent;
+
dwc_otg_hcd_t *dwc_otg_hcd_alloc_hcd(void)
{
return DWC_ALLOC(sizeof(dwc_otg_hcd_t));
@@ -407,6 +409,7 @@ static int dwc_otg_hcd_sleep_cb(void *p)
}
#endif
+
/**
* HCD Callback function for Remote Wakeup.
*
@@ -1330,6 +1333,8 @@ dwc_otg_transaction_type_e dwc_otg_hcd_select_transactions(dwc_otg_hcd_t * hcd)
&qh->qh_list_entry);
DWC_SPINUNLOCK_IRQRESTORE(channel_lock, flags);
+ g_np_sent++;
+
if (ret_val == DWC_OTG_TRANSACTION_NONE) {
ret_val = DWC_OTG_TRANSACTION_NON_PERIODIC;
} else {
diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd.h b/drivers/usb/host/dwc_otg/dwc_otg_hcd.h
index 8075595..dd30f47 100644
--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd.h
+++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.h
@@ -594,7 +594,7 @@ extern void dwc_otg_hcd_queue_transactions(dwc_otg_hcd_t * hcd,
/** @name Interrupt Handler Functions */
/** @{ */
extern int32_t dwc_otg_hcd_handle_intr(dwc_otg_hcd_t * dwc_otg_hcd);
-extern int32_t dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd_t * dwc_otg_hcd);
+extern int32_t dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd_t * dwc_otg_hcd, int32_t);
extern int32_t dwc_otg_hcd_handle_rx_status_q_level_intr(dwc_otg_hcd_t *
dwc_otg_hcd);
extern int32_t dwc_otg_hcd_handle_np_tx_fifo_empty_intr(dwc_otg_hcd_t *
diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h b/drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h
index b3dc806..04ca4c2 100644
--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h
+++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h
@@ -113,6 +113,11 @@ extern void dwc_otg_hcd_remove(dwc_otg_hcd_t * hcd);
*/
extern int32_t dwc_otg_hcd_handle_intr(dwc_otg_hcd_t * dwc_otg_hcd);
+/** This function is used to handle the fast interrupt
+ *
+ */
+extern void __attribute__ ((naked)) dwc_otg_hcd_handle_fiq(void);
+
/**
* Returns private data set by
* dwc_otg_hcd_set_priv_data function.
diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c
index 63c1b55..f1658fa 100644
--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c
+++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c
@@ -34,6 +34,11 @@
#include "dwc_otg_hcd.h"
#include "dwc_otg_regs.h"
+#include "dwc_otg_mphi_fix.h"
+
+#include <linux/jiffies.h>
+#include <mach/hardware.h>
+
extern bool microframe_schedule;
@@ -41,36 +46,105 @@ extern bool microframe_schedule;
* This file contains the implementation of the HCD Interrupt handlers.
*/
+/*
+ * Some globals to communicate between the FIQ and INTERRUPT
+ */
+
+void * dummy_send;
+mphi_regs_t c_mphi_regs;
+int fiq_done, int_done;
+int g_next_sched_frame, g_np_count, g_np_sent, g_work_expected;
+static int mphi_int_count = 0 ;
+
+extern bool fiq_fix_enable;
+
+void __attribute__ ((naked)) dwc_otg_hcd_handle_fiq(void)
+{
+ gintsts_data_t gintsts;
+ hfnum_data_t hfnum;
+
+ /* entry takes care to store registers we will be treading on here */
+ asm __volatile__ (
+ "mov ip, sp ;"
+ /* stash FIQ and normal regs */
+ "stmdb sp!, {r0-r12, lr};"
+ /* !! THIS SETS THE FRAME, adjust to > sizeof locals */
+ "sub fp, ip, #256 ;"
+ );
+
+ fiq_done++;
+ gintsts.d32 = FIQ_READ_IO_ADDRESS(USB_BASE + 0x14) & FIQ_READ_IO_ADDRESS(USB_BASE + 0x18);
+ hfnum.d32 = FIQ_READ_IO_ADDRESS(USB_BASE + 0x408);
+
+ if(gintsts.d32)
+ {
+ if(gintsts.b.sofintr && g_np_count == g_np_sent && dwc_frame_num_gt(g_next_sched_frame, hfnum.b.frnum))
+ {
+ /*
+ * If np_count != np_sent that means we need to queue non-periodic (bulk) packets this packet
+ * g_next_sched_frame is the next frame we have periodic packets for
+ *
+ * if neither of these are required for this frame then just clear the interrupt
+ */
+ gintsts.d32 = 0;
+ gintsts.b.sofintr = 1;
+ FIQ_WRITE_IO_ADDRESS((USB_BASE + 0x14), gintsts.d32);
+
+ g_work_expected = 0;
+ }
+ else
+ {
+ g_work_expected = 1;
+ /* To enable the MPHI interrupt (INT 32)
+ */
+ FIQ_WRITE( c_mphi_regs.outdda, (int) dummy_send);
+ FIQ_WRITE( c_mphi_regs.outddb, (1 << 29));
+
+ mphi_int_count++;
+ /* Clear the USB global interrupt so we don't just sit in the FIQ */
+ FIQ_MODIFY_IO_ADDRESS((USB_BASE + 0x8),1,0);
+
+ }
+ }
+ mb();
+
+ /* exit back to normal mode restoring everything */
+ asm __volatile__ (
+ /* return FIQ regs back to pristine state
+ * and get normal regs back
+ */
+ "ldmia sp!, {r0-r12, lr};"
+
+ /* return */
+ "subs pc, lr, #4;"
+ );
+}
+
/** This function handles interrupts for the HCD. */
int32_t dwc_otg_hcd_handle_intr(dwc_otg_hcd_t * dwc_otg_hcd)
{
int retval = 0;
+ static int last_time;
dwc_otg_core_if_t *core_if = dwc_otg_hcd->core_if;
gintsts_data_t gintsts;
+ hfnum_data_t hfnum;
+
#ifdef DEBUG
dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
- //GRAYG: debugging
- if (NULL == global_regs) {
- DWC_DEBUGPL(DBG_HCD, "**** NULL regs: dwc_otg_hcd=%p "
- "core_if=%p\n",
- dwc_otg_hcd, global_regs);
- return retval;
- }
#endif
/* Exit from ISR if core is hibernated */
if (core_if->hibernation_suspend == 1) {
- return retval;
+ goto exit_handler_routine;
}
DWC_SPINLOCK(dwc_otg_hcd->lock);
/* Check if HOST Mode */
if (dwc_otg_is_host_mode(core_if)) {
gintsts.d32 = dwc_otg_read_core_intr(core_if);
if (!gintsts.d32) {
- DWC_SPINUNLOCK(dwc_otg_hcd->lock);
- return 0;
+ goto exit_handler_routine;
}
#ifdef DEBUG
/* Don't print debug message in the interrupt handler on SOF */
@@ -88,9 +162,14 @@ int32_t dwc_otg_hcd_handle_intr(dwc_otg_hcd_t * dwc_otg_hcd)
"DWC OTG HCD Interrupt Detected gintsts&gintmsk=0x%08x core_if=%p\n",
gintsts.d32, core_if);
#endif
-
- if (gintsts.b.sofintr) {
- retval |= dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd);
+ hfnum.d32 = DWC_READ_REG32(&dwc_otg_hcd->core_if->host_if->host_global_regs->hfnum);
+ if (gintsts.b.sofintr && g_np_count == g_np_sent && dwc_frame_num_gt(g_next_sched_frame, hfnum.b.frnum))
+ {
+ /* Note, we should never get here if the FIQ is doing it's job properly*/
+ retval |= dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd, g_work_expected);
+ }
+ else if (gintsts.b.sofintr) {
+ retval |= dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd, g_work_expected);
}
if (gintsts.b.rxstsqlvl) {
retval |=
@@ -138,11 +217,37 @@ int32_t dwc_otg_hcd_handle_intr(dwc_otg_hcd_t * dwc_otg_hcd)
#endif
}
+
+exit_handler_routine:
+
+ if (fiq_fix_enable)
+ {
+ /* Clear the MPHI interrupt */
+ DWC_WRITE_REG32(c_mphi_regs.intstat, (1<<16));
+ if (mphi_int_count >= 60)
+ {
+ DWC_WRITE_REG32(c_mphi_regs.ctrl, ((1<<31) + (1<<16)));
+ DWC_WRITE_REG32(c_mphi_regs.ctrl, (1<<31));
+ mphi_int_count = 0;
+ }
+ int_done++;
+ if((jiffies / HZ) > last_time)
+ {
+ /* Once a second output the fiq and irq numbers, useful for debug */
+ last_time = jiffies / HZ;
+ DWC_DEBUGPL(DBG_USER, "int_done = %d fiq_done = %d\n", int_done, fiq_done);
+ }
+
+ /* Re-Enable FIQ interrupt from USB peripheral */
+ DWC_MODIFY_REG32((uint32_t *)IO_ADDRESS(USB_BASE + 0x8), 0 , 1);
+ }
+
DWC_SPINUNLOCK(dwc_otg_hcd->lock);
return retval;
}
#ifdef DWC_TRACK_MISSED_SOFS
+
#warning Compiling code to track missed SOFs
#define FRAME_NUM_ARRAY_SIZE 1000
/**
@@ -182,13 +287,15 @@ static inline void track_missed_sofs(uint16_t curr_frame_number)
* (micro)frame. Periodic transactions may be queued to the controller for the
* next (micro)frame.
*/
-int32_t dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd_t * hcd)
+int32_t dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd_t * hcd, int32_t work_expected)
{
hfnum_data_t hfnum;
dwc_list_link_t *qh_entry;
dwc_otg_qh_t *qh;
dwc_otg_transaction_type_e tr_type;
gintsts_data_t gintsts = {.d32 = 0 };
+ int did_something = 0;
+ int32_t next_sched_frame = -1;
hfnum.d32 =
DWC_READ_REG32(&hcd->core_if->host_if->host_global_regs->hfnum);
@@ -218,12 +325,30 @@ int32_t dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd_t * hcd)
*/
DWC_LIST_MOVE_HEAD(&hcd->periodic_sched_ready,
&qh->qh_list_entry);
+
+ did_something = 1;
+ }
+ else
+ {
+ if(next_sched_frame < 0 || dwc_frame_num_le(qh->sched_frame, next_sched_frame))
+ {
+ next_sched_frame = qh->sched_frame;
+ }
}
}
+
+ g_next_sched_frame = next_sched_frame;
+
tr_type = dwc_otg_hcd_select_transactions(hcd);
if (tr_type != DWC_OTG_TRANSACTION_NONE) {
dwc_otg_hcd_queue_transactions(hcd, tr_type);
+ did_something = 1;
}
+ if(work_expected && !did_something)
+ DWC_DEBUGPL(DBG_USER, "Nothing to do !! frame = %x, g_next_sched_frame = %x\n", (int) hfnum.b.frnum, g_next_sched_frame);
+ if(!work_expected && did_something)
+ DWC_DEBUGPL(DBG_USER, "Unexpected work done !! frame = %x, g_next_sched_frame = %x\n", (int) hfnum.b.frnum, g_next_sched_frame);
+
/* Clear interrupt */
gintsts.b.sofintr = 1;
@@ -2102,5 +2227,4 @@ int32_t dwc_otg_hcd_handle_hc_n_intr(dwc_otg_hcd_t * dwc_otg_hcd, uint32_t num)
return retval;
}
-
#endif /* DWC_DEVICE_ONLY */
diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c
index 4a985a6..9702f81 100644
--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c
+++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c
@@ -1,3 +1,4 @@
+
/* ==========================================================================
* $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd_linux.c $
* $Revision: #20 $
@@ -50,6 +51,7 @@
#include <linux/dma-mapping.h>
#include <linux/version.h>
#include <asm/io.h>
+#include <asm/fiq.h>
#include <linux/usb.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35)
#include <../drivers/usb/core/hcd.h>
@@ -67,6 +69,8 @@
#include "dwc_otg_dbg.h"
#include "dwc_otg_driver.h"
#include "dwc_otg_hcd.h"
+#include "dwc_otg_mphi_fix.h"
+
/**
* Gets the endpoint number from a _bEndpointAddress argument. The endpoint is
* qualified with its direction (possible 32 endpoints per device).
@@ -76,6 +80,8 @@
static const char dwc_otg_hcd_name[] = "dwc_otg_hcd";
+extern bool fiq_fix_enable;
+
/** @name Linux HC Driver API Functions */
/** @{ */
/* manage i/o requests, device state */
@@ -366,6 +372,12 @@ static struct dwc_otg_hcd_function_ops hcd_fops = {
.get_b_hnp_enable = _get_b_hnp_enable,
};
+static struct fiq_handler fh = {
+ .name = "usb_fiq",
+};
+static uint8_t fiqStack[1024];
+
+extern mphi_regs_t c_mphi_regs;
/**
* Initializes the HCD. This function allocates memory for and initializes the
* static parts of the usb_hcd and dwc_otg_hcd structures. It also registers the
@@ -379,6 +391,7 @@ int hcd_init(dwc_bus_dev_t *_dev)
dwc_otg_device_t *otg_dev = DWC_OTG_BUSDRVDATA(_dev);
int retval = 0;
u64 dmamask;
+ struct pt_regs regs;
DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD INIT otg_dev=%p\n", otg_dev);
@@ -396,6 +409,18 @@ int hcd_init(dwc_bus_dev_t *_dev)
pci_set_consistent_dma_mask(_dev, dmamask);
#endif
+ if (fiq_fix_enable)
+ {
+ // Set up fiq
+ claim_fiq(&fh);
+ set_fiq_handler(__FIQ_Branch, 4);
+ memset(&regs,0,sizeof(regs));
+ regs.ARM_r8 = (long)dwc_otg_hcd_handle_fiq;
+ regs.ARM_r9 = (long)0;
+ regs.ARM_sp = (long)fiqStack + sizeof(fiqStack) - 4;
+ set_fiq_regs(&regs);
+ }
+
/*
* Allocate memory for the base HCD plus the DWC OTG HCD.
* Initialize the base HCD.
@@ -415,6 +440,26 @@ int hcd_init(dwc_bus_dev_t *_dev)
hcd->regs = otg_dev->os_dep.base;
+ if (fiq_fix_enable)
+ {
+ //Set the mphi periph to the required registers
+ c_mphi_regs.base = otg_dev->os_dep.mphi_base;
+ c_mphi_regs.ctrl = otg_dev->os_dep.mphi_base + 0x4c;
+ c_mphi_regs.outdda = otg_dev->os_dep.mphi_base + 0x28;
+ c_mphi_regs.outddb = otg_dev->os_dep.mphi_base + 0x2c;
+ c_mphi_regs.intstat = otg_dev->os_dep.mphi_base + 0x50;
+
+ //Enable mphi peripheral
+ writel((1<<31),c_mphi_regs.ctrl);
+#ifdef DEBUG
+ if (readl(c_mphi_regs.ctrl) & 0x80000000)
+ DWC_DEBUGPL(DBG_USER, "MPHI periph has been enabled\n");
+ else
+ DWC_DEBUGPL(DBG_USER, "MPHI periph has NOT been enabled\n");
+#endif
+ // Enable FIQ interrupt from USB peripheral
+ enable_fiq(INTERRUPT_VC_USB);
+ }
/* Initialize the DWC OTG HCD. */
dwc_otg_hcd = dwc_otg_hcd_alloc_hcd();
if (!dwc_otg_hcd) {
diff --git a/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c b/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c
index 08c1669..ac10323 100644
--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c
+++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c
@@ -572,6 +572,9 @@ static int check_max_xfer_size(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
return status;
}
+
+extern int g_next_sched_frame, g_np_count, g_np_sent;
+
/**
* Schedules an interrupt or isochronous transfer in the periodic schedule.
*
@@ -630,8 +633,13 @@ static int schedule_periodic(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
DWC_LIST_INSERT_TAIL(&hcd->periodic_sched_ready, &qh->qh_list_entry);
}
else {
- /* Always start in the inactive schedule. */
- DWC_LIST_INSERT_TAIL(&hcd->periodic_sched_inactive, &qh->qh_list_entry);
+ if(DWC_LIST_EMPTY(&hcd->periodic_sched_inactive) || dwc_frame_num_le(qh->sched_frame, g_next_sched_frame))
+ {
+ g_next_sched_frame = qh->sched_frame;
+
+ }
+ /* Always start in the inactive schedule. */
+ DWC_LIST_INSERT_TAIL(&hcd->periodic_sched_inactive, &qh->qh_list_entry);
}
if (!microframe_schedule) {
@@ -645,6 +653,7 @@ static int schedule_periodic(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
return status;
}
+
/**
* This function adds a QH to either the non periodic or periodic schedule if
* it is not already in the schedule. If the QH is already in the schedule, no
@@ -667,6 +676,7 @@ int dwc_otg_hcd_qh_add(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
/* Always start in the inactive schedule. */
DWC_LIST_INSERT_TAIL(&hcd->non_periodic_sched_inactive,
&qh->qh_list_entry);
+ g_np_count++;
} else {
status = schedule_periodic(hcd, qh);
if ( !hcd->periodic_qh_count ) {
@@ -767,6 +777,7 @@ void dwc_otg_hcd_qh_deactivate(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh,
if (sched_next_periodic_split) {
qh->sched_frame = frame_number;
+
if (dwc_frame_num_le(frame_number,
dwc_frame_num_inc
(qh->start_split_frame,
@@ -815,6 +826,11 @@ void dwc_otg_hcd_qh_deactivate(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh,
DWC_LIST_MOVE_HEAD(&hcd->periodic_sched_ready,
&qh->qh_list_entry);
} else {
+ if(!dwc_frame_num_le(g_next_sched_frame, qh->sched_frame))
+ {
+ g_next_sched_frame = qh->sched_frame;
+ }
+
DWC_LIST_MOVE_HEAD
(&hcd->periodic_sched_inactive,
&qh->qh_list_entry);
diff --git a/drivers/usb/host/dwc_otg/dwc_otg_mphi_fix.c b/drivers/usb/host/dwc_otg/dwc_otg_mphi_fix.c
new file mode 100755
index 0000000..b70ca68
--- /dev/null
+++ b/drivers/usb/host/dwc_otg/dwc_otg_mphi_fix.c
@@ -0,0 +1,113 @@
+#include "dwc_otg_regs.h"
+#include "dwc_otg_dbg.h"
+
+void dwc_debug_print_core_int_reg(gintsts_data_t gintsts, const char* function_name)
+{
+ DWC_DEBUGPL(DBG_USER, "*** Debugging from within the %s function: ***\n"
+ "curmode: %1i Modemismatch: %1i otgintr: %1i sofintr: %1i\n"
+ "rxstsqlvl: %1i nptxfempty : %1i ginnakeff: %1i goutnakeff: %1i\n"
+ "ulpickint: %1i i2cintr: %1i erlysuspend:%1i usbsuspend: %1i\n"
+ "usbreset: %1i enumdone: %1i isooutdrop: %1i eopframe: %1i\n"
+ "restoredone: %1i epmismatch: %1i inepint: %1i outepintr: %1i\n"
+ "incomplisoin:%1i incomplisoout:%1i fetsusp: %1i resetdet: %1i\n"
+ "portintr: %1i hcintr: %1i ptxfempty: %1i lpmtranrcvd:%1i\n"
+ "conidstschng:%1i disconnect: %1i sessreqintr:%1i wkupintr: %1i\n",
+ function_name,
+ gintsts.b.curmode,
+ gintsts.b.modemismatch,
+ gintsts.b.otgintr,
+ gintsts.b.sofintr,
+ gintsts.b.rxstsqlvl,
+ gintsts.b.nptxfempty,
+ gintsts.b.ginnakeff,
+ gintsts.b.goutnakeff,
+ gintsts.b.ulpickint,
+ gintsts.b.i2cintr,
+ gintsts.b.erlysuspend,
+ gintsts.b.usbsuspend,
+ gintsts.b.usbreset,
+ gintsts.b.enumdone,
+ gintsts.b.isooutdrop,
+ gintsts.b.eopframe,
+ gintsts.b.restoredone,
+ gintsts.b.epmismatch,
+ gintsts.b.inepint,
+ gintsts.b.outepintr,
+ gintsts.b.incomplisoin,
+ gintsts.b.incomplisoout,
+ gintsts.b.fetsusp,
+ gintsts.b.resetdet,
+ gintsts.b.portintr,
+ gintsts.b.hcintr,
+ gintsts.b.ptxfempty,
+ gintsts.b.lpmtranrcvd,
+ gintsts.b.conidstschng,
+ gintsts.b.disconnect,
+ gintsts.b.sessreqintr,
+ gintsts.b.wkupintr);
+ return;
+}
+
+void dwc_debug_core_int_mask(gintmsk_data_t gintmsk, const char* function_name)
+{
+ DWC_DEBUGPL(DBG_USER, "Interrupt Mask status (called from %s) :\n"
+ "modemismatch: %1i otgintr: %1i sofintr: %1i rxstsqlvl: %1i\n"
+ "nptxfempty: %1i ginnakeff: %1i goutnakeff: %1i ulpickint: %1i\n"
+ "i2cintr: %1i erlysuspend:%1i usbsuspend: %1i usbreset: %1i\n"
+ "enumdone: %1i isooutdrop: %1i eopframe: %1i restoredone: %1i\n"
+ "epmismatch: %1i inepintr: %1i outepintr: %1i incomplisoin:%1i\n"
+ "incomplisoout:%1i fetsusp: %1i resetdet: %1i portintr: %1i\n"
+ "hcintr: %1i ptxfempty: %1i lpmtranrcvd:%1i conidstschng:%1i\n"
+ "disconnect: %1i sessreqintr:%1i wkupintr: %1i\n",
+ function_name,
+ gintmsk.b.modemismatch,
+ gintmsk.b.otgintr,
+ gintmsk.b.sofintr,
+ gintmsk.b.rxstsqlvl,
+ gintmsk.b.nptxfempty,
+ gintmsk.b.ginnakeff,
+ gintmsk.b.goutnakeff,
+ gintmsk.b.ulpickint,
+ gintmsk.b.i2cintr,
+ gintmsk.b.erlysuspend,
+ gintmsk.b.usbsuspend,
+ gintmsk.b.usbreset,
+ gintmsk.b.enumdone,
+ gintmsk.b.isooutdrop,
+ gintmsk.b.eopframe,
+ gintmsk.b.restoredone,
+ gintmsk.b.epmismatch,
+ gintmsk.b.inepintr,
+ gintmsk.b.outepintr,
+ gintmsk.b.incomplisoin,
+ gintmsk.b.incomplisoout,
+ gintmsk.b.fetsusp,
+ gintmsk.b.resetdet,
+ gintmsk.b.portintr,
+ gintmsk.b.hcintr,
+ gintmsk.b.ptxfempty,
+ gintmsk.b.lpmtranrcvd,
+ gintmsk.b.conidstschng,
+ gintmsk.b.disconnect,
+ gintmsk.b.sessreqintr,
+ gintmsk.b.wkupintr);
+ return;
+}
+
+void dwc_debug_otg_int(gotgint_data_t gotgint, const char* function_name)
+{
+ DWC_DEBUGPL(DBG_USER, "otg int register (from %s function):\n"
+ "sesenddet:%1i sesreqsucstschung:%2i hstnegsucstschng:%1i\n"
+ "hstnegdet:%1i adevtoutchng: %2i debdone: %1i\n"
+ "mvic: %1i\n",
+ function_name,
+ gotgint.b.sesenddet,
+ gotgint.b.sesreqsucstschng,
+ gotgint.b.hstnegsucstschng,
+ gotgint.b.hstnegdet,
+ gotgint.b.adevtoutchng,
+ gotgint.b.debdone,
+ gotgint.b.mvic);
+
+ return;
+}
diff --git a/drivers/usb/host/dwc_otg/dwc_otg_mphi_fix.h b/drivers/usb/host/dwc_otg/dwc_otg_mphi_fix.h
new file mode 100755
index 0000000..22f28e1
--- /dev/null
+++ b/drivers/usb/host/dwc_otg/dwc_otg_mphi_fix.h
@@ -0,0 +1,36 @@
+#ifndef __DWC_OTG_MPHI_FIX_H__
+#define __DWC_OTG_MPHI_FIX_H__
+
+#define FIQ_WRITE_IO_ADDRESS(_addr_,_data_) *(volatile uint32_t *) IO_ADDRESS(_addr_) = _data_
+#define FIQ_READ_IO_ADDRESS(_addr_) *(volatile uint32_t *) IO_ADDRESS(_addr_)
+#define FIQ_MODIFY_IO_ADDRESS(_addr_,_clear_,_set_) FIQ_WRITE_IO_ADDRESS(_addr_ , (FIQ_READ_IO_ADDRESS(_addr_)&~_clear_)|_set_)
+#define FIQ_WRITE(_addr_,_data_) *(volatile uint32_t *) _addr_ = _data_
+
+typedef struct {
+ volatile void* base;
+ volatile void* ctrl;
+ volatile void* outdda;
+ volatile void* outddb;
+ volatile void* intstat;
+} mphi_regs_t;
+
+void dwc_debug_print_core_int_reg(gintsts_data_t gintsts, const char* function_name);
+void dwc_debug_core_int_mask(gintsts_data_t gintmsk, const char* function_name);
+void dwc_debug_otg_int(gotgint_data_t gotgint, const char* function_name);
+
+
+
+#ifdef DEBUG
+#define DWC_DBG_PRINT_CORE_INT(_arg_) dwc_debug_print_core_int_reg(_arg_,__func__)
+#define DWC_DBG_PRINT_CORE_INT_MASK(_arg_) dwc_debug_core_int_mask(_arg_,__func__)
+#define DWC_DBG_PRINT_OTG_INT(_arg_) dwc_debug_otg_int(_arg_,__func__)
+
+#else
+#define DWC_DBG_PRINT_CORE_INT(_arg_)
+#define DWC_DBG_PRINT_CORE_INT_MASK(_arg_)
+#define DWC_DBG_PRINT_OTG_INT(_arg_)
+
+
+#endif
+
+#endif
diff --git a/drivers/usb/host/dwc_otg/dwc_otg_os_dep.h b/drivers/usb/host/dwc_otg/dwc_otg_os_dep.h
index a7e9076..bb1c42d 100644
--- a/drivers/usb/host/dwc_otg/dwc_otg_os_dep.h
+++ b/drivers/usb/host/dwc_otg/dwc_otg_os_dep.h
@@ -97,6 +97,9 @@ typedef struct os_dependent {
/** Register offset for Diagnostic API */
uint32_t reg_offset;
+ /** Base address for MPHI peripheral */
+ void *mphi_base;
+
#ifdef LM_INTERFACE
struct lm_device *lmdev;
#elif defined(PCI_INTERFACE)
--
1.9.1
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