From: David Brownell <[EMAIL PROTECTED]>
Also remove support for the manually modified EVM which tried
using a "real GPIO" for VBUS switching.
Signed-off-by: David Brownell <[EMAIL PROTECTED]>
---
arch/arm/mach-davinci/Makefile | 2 +-
arch/arm/mach-davinci/board-evm.c | 58 +--------
arch/arm/mach-davinci/include/mach/common.h | 3 +
arch/arm/mach-davinci/include/mach/hdrc_cnf.h | 165 -------------------------
arch/arm/mach-davinci/usb.c | 116 +++++++++++++++++
drivers/usb/musb/cppi_dma.h | 4 +-
drivers/usb/musb/davinci.c | 14 --
7 files changed, 125 insertions(+), 237 deletions(-)
delete mode 100644 arch/arm/mach-davinci/include/mach/hdrc_cnf.h
create mode 100644 arch/arm/mach-davinci/usb.c
diff --git a/arch/arm/mach-davinci/Makefile b/arch/arm/mach-davinci/Makefile
index 8a6b664..7428e48 100644
--- a/arch/arm/mach-davinci/Makefile
+++ b/arch/arm/mach-davinci/Makefile
@@ -5,7 +5,7 @@
# Common objects
obj-y := time.o irq.o clock.o serial.o io.o id.o psc.o \
- gpio.o mux.o dma.o devices.o common.o
+ gpio.o mux.o dma.o devices.o common.o usb.o
# Board specific
obj-$(CONFIG_MACH_DAVINCI_EVM) += board-evm.o
diff --git a/arch/arm/mach-davinci/board-evm.c
b/arch/arm/mach-davinci/board-evm.c
index 686593f..1b2a68e 100644
--- a/arch/arm/mach-davinci/board-evm.c
+++ b/arch/arm/mach-davinci/board-evm.c
@@ -151,57 +151,6 @@ static struct platform_device davinci_fb_device = {
};
#endif
-/*
- * USB
- */
-#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
-
-#include <linux/usb/musb.h>
-
-static struct musb_hdrc_platform_data usb_data = {
-#if defined(CONFIG_USB_MUSB_OTG)
- /* OTG requires a Mini-AB connector */
- .mode = MUSB_OTG,
-#elif defined(CONFIG_USB_MUSB_PERIPHERAL)
- .mode = MUSB_PERIPHERAL,
-#elif defined(CONFIG_USB_MUSB_HOST)
- .mode = MUSB_HOST,
-#endif
- /* irlml6401 switches 5V */
- .power = 250, /* sustains 3.0+ Amps (!) */
- .potpgt = 4, /* ~8 msec */
-};
-
-static struct resource usb_resources [] = {
- {
- /* physical address */
- .start = DAVINCI_USB_OTG_BASE,
- .end = DAVINCI_USB_OTG_BASE + 0x5ff,
- .flags = IORESOURCE_MEM,
- },
- {
- .start = IRQ_USBINT,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static u64 usb_dmamask = DMA_32BIT_MASK;
-
-static struct platform_device usb_dev = {
- .name = "musb_hdrc",
- .id = -1,
- .dev = {
- .platform_data = &usb_data,
- .dma_mask = &usb_dmamask,
- .coherent_dma_mask = DMA_32BIT_MASK,
- },
- .resource = usb_resources,
- .num_resources = ARRAY_SIZE(usb_resources),
-};
-
-#define setup_usb(void) do {} while(0)
-#endif /* CONFIG_USB_MUSB_HDRC */
-
static struct platform_device rtc_dev = {
.name = "rtc_davinci_evm",
.id = -1,
@@ -477,9 +426,6 @@ static struct platform_device *davinci_evm_devices[]
__initdata = {
#if defined(CONFIG_FB_DAVINCI) || defined(CONFIG_FB_DAVINCI_MODULE)
&davinci_fb_device,
#endif
-#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
- &usb_dev,
-#endif
&rtc_dev,
#if defined(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \
defined(CONFIG_BLK_DEV_PALMCHIP_BK3710_MODULE)
@@ -520,7 +466,9 @@ static __init void davinci_evm_init(void)
davinci_board_config = davinci_evm_config;
davinci_board_config_size = ARRAY_SIZE(davinci_evm_config);
davinci_serial_init();
- setup_usb();
+
+ /* irlml6401 sustains over 3A, switches 5V in under 8 msec */
+ setup_usb(500, 8);
}
static __init void davinci_evm_irq_init(void)
diff --git a/arch/arm/mach-davinci/include/mach/common.h
b/arch/arm/mach-davinci/include/mach/common.h
index 1eea01d..3f91b8c 100644
--- a/arch/arm/mach-davinci/include/mach/common.h
+++ b/arch/arm/mach-davinci/include/mach/common.h
@@ -17,4 +17,7 @@ struct sys_timer;
extern struct sys_timer davinci_timer;
extern void davinci_serial_init(void);
+/* parameters describe VBUS sourcing for host mode */
+extern void setup_usb(unsigned mA, unsigned potpgt_msec);
+
#endif /* __ARCH_ARM_MACH_DAVINCI_COMMON_H */
diff --git a/arch/arm/mach-davinci/include/mach/hdrc_cnf.h
b/arch/arm/mach-davinci/include/mach/hdrc_cnf.h
deleted file mode 100644
index 3811ce4..0000000
--- a/arch/arm/mach-davinci/include/mach/hdrc_cnf.h
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
- * USB High-Speed Multi-Point Dual-Role Controller Configuration
- *
- * Copyright Mentor Graphics Corporation and Licensors 2004
- * Copyright (C) 2005 by Texas Instruments
- *
- * This file contains configuration constants for the (m)hdrc
- * silicon as integrated into DaVinci CPUs.
- */
-
-#ifndef __ARCH_MUSB_HDRC_CNF
-#define __ARCH_MUSB_HDRC_CNF
-
-/* ** Number of Tx endpoints ** */
-/* Legal values are 1 - 16 (this value includes EP0) */
-#define MUSB_C_NUM_EPT 5
-
-/* ** Number of Rx endpoints ** */
-/* Legal values are 1 - 16 (this value includes EP0) */
-#define MUSB_C_NUM_EPR 5
-
-/* ** Endpoint 1 to 15 direction types ** */
-/* C_EP1_DEF is defined if either Tx endpoint 1 or Rx endpoint 1 are used */
-#define MUSB_C_EP1_DEF
-
-/* C_EP1_TX_DEF is defined if Tx endpoint 1 is used */
-#define MUSB_C_EP1_TX_DEF
-
-/* C_EP1_RX_DEF is defined if Rx endpoint 1 is used */
-#define MUSB_C_EP1_RX_DEF
-
-/* C_EP1_TOR_DEF is defined if Tx endpoint 1 and Rx endpoint 1 share a FIFO */
-/*`define C_EP1_TOR_DEF */
-
-/* C_EP1_TAR_DEF is defined if both Tx endpoint 1 and Rx endpoint 1 are used */
-/* and do not share a FIFO */
-#define MUSB_C_EP1_TAR_DEF
-
-/* Similarly for all other used endpoints */
-#define MUSB_C_EP2_DEF
-#define MUSB_C_EP2_TX_DEF
-#define MUSB_C_EP2_RX_DEF
-#define MUSB_C_EP2_TAR_DEF
-#define MUSB_C_EP3_DEF
-#define MUSB_C_EP3_TX_DEF
-#define MUSB_C_EP3_RX_DEF
-#define MUSB_C_EP3_TAR_DEF
-#define MUSB_C_EP4_DEF
-#define MUSB_C_EP4_TX_DEF
-#define MUSB_C_EP4_RX_DEF
-#define MUSB_C_EP4_TAR_DEF
-
-/* ** Endpoint 1 to 15 FIFO address bits ** */
-/* Legal values are 3 to 13 - corresponding to FIFO sizes of 8 to 8192 bytes.
*/
-/* If an Tx endpoint shares a FIFO with an Rx endpoint then the Rx FIFO size */
-/* must be the same as the Tx FIFO size. */
-/* All endpoints 1 to 15 must be defined, unused endpoints should be set to 2.
*/
-#define MUSB_C_EP1T_BITS 5
-#define MUSB_C_EP1R_BITS 5
-#define MUSB_C_EP2T_BITS 5
-#define MUSB_C_EP2R_BITS 5
-#define MUSB_C_EP3T_BITS 3
-#define MUSB_C_EP3R_BITS 3
-#define MUSB_C_EP4T_BITS 3
-#define MUSB_C_EP4R_BITS 3
-
-#define MUSB_C_EP5T_BITS 2
-#define MUSB_C_EP5R_BITS 2
-#define MUSB_C_EP6T_BITS 2
-#define MUSB_C_EP6R_BITS 2
-#define MUSB_C_EP7T_BITS 2
-#define MUSB_C_EP7R_BITS 2
-#define MUSB_C_EP8T_BITS 2
-#define MUSB_C_EP8R_BITS 2
-#define MUSB_C_EP9T_BITS 2
-#define MUSB_C_EP9R_BITS 2
-#define MUSB_C_EP10T_BITS 2
-#define MUSB_C_EP10R_BITS 2
-#define MUSB_C_EP11T_BITS 2
-#define MUSB_C_EP11R_BITS 2
-#define MUSB_C_EP12T_BITS 2
-#define MUSB_C_EP12R_BITS 2
-#define MUSB_C_EP13T_BITS 2
-#define MUSB_C_EP13R_BITS 2
-#define MUSB_C_EP14T_BITS 2
-#define MUSB_C_EP14R_BITS 2
-#define MUSB_C_EP15T_BITS 2
-#define MUSB_C_EP15R_BITS 2
-
-/* Define the following constant if the USB2.0 Transceiver Macrocell data
width is 16-bits. */
-/* `define C_UTM_16 */
-
-/* Define this constant if the CPU uses big-endian byte ordering. */
-/*`define C_BIGEND */
-
-/* Define the following constant if any Tx endpoint is required to support
multiple bulk packets. */
-/* `define C_MP_TX */
-
-/* Define the following constant if any Rx endpoint is required to support
multiple bulk packets. */
-/* `define C_MP_RX */
-
-/* Define the following constant if any Tx endpoint is required to support
high bandwidth ISO. */
-/* `define C_HB_TX */
-
-/* Define the following constant if any Rx endpoint is required to support
high bandwidth ISO. */
-/* `define C_HB_RX */
-
-/* Define the following constant if software connect/disconnect control is
required. */
-#define MUSB_C_SOFT_CON
-
-/* Define the following constant if Vendor Control Registers are required. */
-/* `define C_VEND_REG */
-
-/* Vendor control register widths. */
-#define MUSB_C_VCTL_BITS 4
-#define MUSB_C_VSTAT_BITS 8
-
-
-/* Define the following constant to include a DMA controller. */
-/*`define C_DMA */
-
-/* Define the following constant if 2 or more DMA channels are required. */
-/*`define C_DMA2 */
-
-/* Define the following constant if 3 or more DMA channels are required. */
-/*`define C_DMA3 */
-
-/* Define the following constant if 4 or more DMA channels are required. */
-/*`define C_DMA4 */
-
-/* Define the following constant if 5 or more DMA channels are required. */
-/*`define C_DMA5 */
-
-/* Define the following constant if 6 or more DMA channels are required. */
-/*`define C_DMA6 */
-
-/* Define the following constant if 7 or more DMA channels are required. */
-/*`define C_DMA7 */
-
-/* Define the following constant if 8 or more DMA channels are required. */
-/*`define C_DMA8 */
-
-
-/* ** Enable Dynamic FIFO Sizing ** */
-#define MUSB_C_DYNFIFO_DEF
-
-/* ** Derived constants ** */
-/* The following constants are derived from the previous configuration
constants */
-
-/* Total number of endpoints
- * Legal values are 2 - 16
- * This must be equal to the larger of C_NUM_EPT, C_NUM_EPR
- */
-#define MUSB_C_NUM_EPS 5
-
-/* C_EPMAX_BITS is equal to the largest endpoint FIFO word address bits */
-#define MUSB_C_EPMAX_BITS 11
-
-/* C_RAM_BITS is the number of address bits required to address the RAM (32-bit
- * addresses). It is defined as log2 of the sum of 2** of all the endpoint
FIFO
- * dword address bits (rounded up).
- */
-#define MUSB_C_RAM_BITS 10
-
-#endif /* __ARCH_MUSB_HDRC_CNF */
diff --git a/arch/arm/mach-davinci/usb.c b/arch/arm/mach-davinci/usb.c
new file mode 100644
index 0000000..fe182a8
--- /dev/null
+++ b/arch/arm/mach-davinci/usb.c
@@ -0,0 +1,116 @@
+/*
+ * USB
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+
+#include <linux/usb/musb.h>
+#include <linux/usb/otg.h>
+
+#include <mach/common.h>
+#include <mach/hardware.h>
+
+#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+static struct musb_hdrc_eps_bits musb_eps[] = {
+ { "ep1_tx", 8, },
+ { "ep1_rx", 8, },
+ { "ep2_tx", 8, },
+ { "ep2_rx", 8, },
+ { "ep3_tx", 5, },
+ { "ep3_rx", 5, },
+ { "ep4_tx", 5, },
+ { "ep4_rx", 5, },
+};
+
+static struct musb_hdrc_config musb_config = {
+ .multipoint = true,
+ .dyn_fifo = true,
+ .soft_con = true,
+ .dma = true,
+
+ .num_eps = 5,
+ .dma_channels = 8,
+ .ram_bits = 10,
+ .eps_bits = musb_eps,
+};
+
+static struct musb_hdrc_platform_data usb_data = {
+#if defined(CONFIG_USB_MUSB_OTG)
+ /* OTG requires a Mini-AB connector */
+ .mode = MUSB_OTG,
+#elif defined(CONFIG_USB_MUSB_PERIPHERAL)
+ .mode = MUSB_PERIPHERAL,
+#elif defined(CONFIG_USB_MUSB_HOST)
+ .mode = MUSB_HOST,
+#endif
+ .config = &musb_config,
+};
+
+static struct resource usb_resources[] = {
+ {
+ /* physical address */
+ .start = DAVINCI_USB_OTG_BASE,
+ .end = DAVINCI_USB_OTG_BASE + 0x5ff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_USBINT,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static u64 usb_dmamask = DMA_32BIT_MASK;
+
+static struct platform_device usb_dev = {
+ .name = "musb_hdrc",
+ .id = -1,
+ .dev = {
+ .platform_data = &usb_data,
+ .dma_mask = &usb_dmamask,
+ .coherent_dma_mask = DMA_32BIT_MASK,
+ },
+ .resource = usb_resources,
+ .num_resources = ARRAY_SIZE(usb_resources),
+};
+
+#ifdef CONFIG_USB_MUSB_OTG
+
+static struct otg_transceiver *xceiv;
+
+struct otg_transceiver *otg_get_transceiver(void)
+{
+ if (xceiv)
+ get_device(xceiv->dev);
+ return xceiv;
+}
+EXPORT_SYMBOL(otg_get_transceiver);
+
+int otg_set_transceiver(struct otg_transceiver *x)
+{
+ if (xceiv && x)
+ return -EBUSY;
+ xceiv = x;
+ return 0;
+}
+EXPORT_SYMBOL(otg_set_transceiver);
+
+#endif
+
+void __init setup_usb(unsigned mA, unsigned potpgt_msec)
+{
+ usb_data.power = mA / 2;
+ usb_data.potpgt = potpgt_msec / 2;
+ platform_device_register(&usb_dev);
+}
+
+#else
+
+void __init setup_usb(unsigned mA, unsigned potpgt_msec)
+{
+}
+
+#endif /* CONFIG_USB_MUSB_HDRC */
+
diff --git a/drivers/usb/musb/cppi_dma.h b/drivers/usb/musb/cppi_dma.h
index fc5216b..729b407 100644
--- a/drivers/usb/musb/cppi_dma.h
+++ b/drivers/usb/musb/cppi_dma.h
@@ -119,8 +119,8 @@ struct cppi {
void __iomem *mregs; /* Mentor regs */
void __iomem *tibase; /* TI/CPPI regs */
- struct cppi_channel tx[MUSB_C_NUM_EPT - 1];
- struct cppi_channel rx[MUSB_C_NUM_EPR - 1];
+ struct cppi_channel tx[4];
+ struct cppi_channel rx[4];
struct dma_pool *pool;
diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
index 774c813..ec9e09e 100644
--- a/drivers/usb/musb/davinci.c
+++ b/drivers/usb/musb/davinci.c
@@ -36,7 +36,6 @@
#include <mach/gpio.h>
#include <asm/mach-types.h>
-#include <mach/hdrc_cnf.h>
#include "musb_core.h"
#ifdef CONFIG_MACH_DAVINCI_EVM
@@ -139,7 +138,6 @@ static int vbus_state = -1;
/* VBUS SWITCHING IS BOARD-SPECIFIC */
#ifdef CONFIG_MACH_DAVINCI_EVM
-#ifndef CONFIG_MACH_DAVINCI_EVM_OTG
/* I2C operations are always synchronous, and require a task context.
* With unloaded systems, using the shared workqueue seems to suffice
@@ -152,7 +150,6 @@ static void evm_deferred_drvvbus(struct work_struct
*ignored)
}
static DECLARE_WORK(evm_vbus_work, evm_deferred_drvvbus);
-#endif /* modified board */
#endif /* EVM */
static void davinci_source_power(struct musb *musb, int is_on, int immediate)
@@ -166,21 +163,10 @@ static void davinci_source_power(struct musb *musb, int
is_on, int immediate)
#ifdef CONFIG_MACH_DAVINCI_EVM
if (machine_is_davinci_evm()) {
-#ifdef CONFIG_MACH_DAVINCI_EVM_OTG
- /* modified EVM board switching VBUS with GPIO(6) not I2C
- * NOTE: PINMUX0.RGB888 (bit23) must be clear
- */
- if (is_on)
- gpio_set(GPIO(6));
- else
- gpio_clear(GPIO(6));
- immediate = 1;
-#else
if (immediate)
davinci_i2c_expander_op(0x3a, USB_DRVVBUS, !is_on);
else
schedule_work(&evm_vbus_work);
-#endif
}
#endif
if (immediate)
--
1.5.6.4
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