This patch makes musb can work on blackfin bf60x series soc platform.
Bf60x uses MHDRC RTL version 2.0 musb ip core which don't need a lot of
blackfin specific anomalies anymore.
Signed-off-by: Bob Liu <lliubbo@xxxxxxxxx>
---
drivers/usb/musb/Kconfig | 2 +-
drivers/usb/musb/blackfin.c | 70 ++++++++++++++++++++++++++----------------
drivers/usb/musb/musb_core.c | 7 +++--
drivers/usb/musb/musb_core.h | 2 +-
drivers/usb/musb/musb_dma.h | 2 +-
drivers/usb/musb/musb_io.h | 2 +-
drivers/usb/musb/musb_regs.h | 2 +-
drivers/usb/musb/musbhsdma.c | 2 +-
drivers/usb/musb/musbhsdma.h | 2 +-
9 files changed, 56 insertions(+), 35 deletions(-)
diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index 23a0b7f..d8633c0 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -60,7 +60,7 @@ config USB_MUSB_DSPS
config USB_MUSB_BLACKFIN
tristate "Blackfin"
- depends on (BF54x && !BF544) || (BF52x && ! BF522 && !BF523)
+ depends on (BF54x && !BF544) || (BF52x && ! BF522 && !BF523) || BF60x
config USB_MUSB_UX500
tristate "U8500 and U5500"
diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index 14dab9f..ffbb4f5 100644
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
@@ -36,6 +36,7 @@ struct bfin_glue {
/*
* Load an endpoint's FIFO
*/
+#ifndef CONFIG_BF60x
void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *src)
{
struct musb *musb = hw_ep->musb;
@@ -164,6 +165,7 @@ void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
dump_fifo_data(dst, len);
}
+#endif
static irqreturn_t blackfin_interrupt(int irq, void *__hci)
{
@@ -192,6 +194,9 @@ static irqreturn_t blackfin_interrupt(int irq, void *__hci)
musb->a_wait_bcon = TIMER_DELAY;
}
+ if (musb->hwvers >= MUSB_HWVERS_2000)
+ if (musb->int_usb & MUSB_INTR_DISCONNECT && is_host_active(musb))
+ bfin_write_USB_VBUS_CTL(0x00);
spin_unlock_irqrestore(&musb->lock, flags);
return retval;
@@ -349,6 +354,7 @@ static int bfin_musb_adjust_channel_params(struct dma_channel *channel,
static void bfin_musb_reg_init(struct musb *musb)
{
+#ifndef CONFIG_BF60x
if (ANOMALY_05000346) {
bfin_write_USB_APHY_CALIB(ANOMALY_05000346_value);
SSYNC();
@@ -383,29 +389,41 @@ static void bfin_musb_reg_init(struct musb *musb)
EP2_RX_ENA | EP3_RX_ENA | EP4_RX_ENA |
EP5_RX_ENA | EP6_RX_ENA | EP7_RX_ENA);
SSYNC();
+#else
+ bfin_write_USB_PLLOSC_CTRL((480/musb->config->clkin) << 1);
+ SSYNC();
+
+ bfin_write_USB_VBUS_CTL(0x00);
+ bfin_write_USB_APHY_CNTRL(0x80);
+ SSYNC();
+ musb->config->ram_bits = musb_readb(musb->mregs, MUSB_RAMINFO) & 0xf;
+#endif
}
static int bfin_musb_init(struct musb *musb)
{
+ if (musb->hwvers < MUSB_HWVERS_2000) {
+ /*
+ * Rev 1.0 BF549 EZ-KITs require PE7 to be high for both DEVICE
+ * and OTG HOST modes, while rev 1.1 and greater require PE7 to
+ * be low for DEVICE mode and high for HOST mode. We set it high
+ * here because we are in host mode
+ */
- /*
- * Rev 1.0 BF549 EZ-KITs require PE7 to be high for both DEVICE
- * and OTG HOST modes, while rev 1.1 and greater require PE7 to
- * be low for DEVICE mode and high for HOST mode. We set it high
- * here because we are in host mode
- */
-
- if (gpio_request(musb->config->gpio_vrsel, "USB_VRSEL")) {
- printk(KERN_ERR "Failed ro request USB_VRSEL GPIO_%d\n",
- musb->config->gpio_vrsel);
- return -ENODEV;
+ if (gpio_request(musb->config->gpio_vrsel, "USB_VRSEL")) {
+ printk(KERN_ERR "Failed ro request USB_VRSEL GPIO_%d\n",
+ musb->config->gpio_vrsel);
+ return -ENODEV;
+ }
+ gpio_direction_output(musb->config->gpio_vrsel, 0);
+ musb->xceiv->set_power = bfin_musb_set_power;
+ musb->double_buffer_not_ok = true;
}
- gpio_direction_output(musb->config->gpio_vrsel, 0);
-
usb_nop_xceiv_register();
musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);
if (IS_ERR_OR_NULL(musb->xceiv)) {
- gpio_free(musb->config->gpio_vrsel);
+ if (musb->hwvers < MUSB_HWVERS_2000)
+ gpio_free(musb->config->gpio_vrsel);
return -ENODEV;
}
@@ -414,10 +432,7 @@ static int bfin_musb_init(struct musb *musb)
setup_timer(&musb_conn_timer, musb_conn_timer_handler,
(unsigned long) musb);
- musb->xceiv->set_power = bfin_musb_set_power;
-
musb->isr = blackfin_interrupt;
- musb->double_buffer_not_ok = true;
return 0;
}
@@ -525,16 +540,13 @@ static int bfin_suspend(struct device *dev)
{
struct bfin_glue *glue = dev_get_drvdata(dev);
struct musb *musb = glue_to_musb(glue);
+ int aphy;
- if (is_host_active(musb))
- /*
- * During hibernate gpio_vrsel will change from high to low
- * low which will generate wakeup event resume the system
- * immediately. Set it to 0 before hibernate to avoid this
- * wakeup event.
- */
- gpio_set_value(musb->config->gpio_vrsel, 0);
-
+ if (musb->hwvers >= MUSB_HWVERS_2000) {
+ aphy = bfin_read_USB_APHY_CNTRL();
+ bfin_write_USB_APHY_CNTRL(aphy | 0x1);
+ SSYNC();
+ }
return 0;
}
@@ -542,7 +554,13 @@ static int bfin_resume(struct device *dev)
{
struct bfin_glue *glue = dev_get_drvdata(dev);
struct musb *musb = glue_to_musb(glue);
+ int aphy;
+ if (musb->hwvers >= MUSB_HWVERS_2000) {
+ aphy = bfin_read_USB_APHY_CNTRL();
+ bfin_write_USB_APHY_CNTRL(aphy | 0x2);
+ SSYNC();
+ }
bfin_musb_reg_init(musb);
return 0;
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index fd34867..7b49d57 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -226,7 +226,8 @@ static struct usb_phy_io_ops musb_ulpi_access = {
/*-------------------------------------------------------------------------*/
-#if !defined(CONFIG_USB_MUSB_TUSB6010) && !defined(CONFIG_USB_MUSB_BLACKFIN)
+#if !defined(CONFIG_USB_MUSB_TUSB6010) \
+ && (!defined(CONFIG_USB_MUSB_BLACKFIN) || defined(CONFIG_BF60x))
/*
* Load an endpoint's FIFO
@@ -1039,7 +1040,9 @@ static void musb_shutdown(struct platform_device *pdev)
|| defined(CONFIG_USB_MUSB_AM35X) \
|| defined(CONFIG_USB_MUSB_AM35X_MODULE) \
|| defined(CONFIG_USB_MUSB_DSPS) \
- || defined(CONFIG_USB_MUSB_DSPS_MODULE)
+ || defined(CONFIG_USB_MUSB_DSPS_MODULE) \
+ || defined(CONFIG_USB_MUSB_BLACKFIN)
+
static ushort fifo_mode = 4;
#elif defined(CONFIG_USB_MUSB_UX500) \
|| defined(CONFIG_USB_MUSB_UX500_MODULE)
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 7fb4819..a46ec5d 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -449,7 +449,7 @@ static inline struct musb *gadget_to_musb(struct usb_gadget *g)
return container_of(g, struct musb, g);
}
-#ifdef CONFIG_BLACKFIN
+#if defined(CONFIG_BLACKFIN) && !defined(CONFIG_BF60x)
static inline int musb_read_fifosize(struct musb *musb,
struct musb_hw_ep *hw_ep, u8 epnum)
{
diff --git a/drivers/usb/musb/musb_dma.h b/drivers/usb/musb/musb_dma.h
index 1b6b827..6bb84df 100644
--- a/drivers/usb/musb/musb_dma.h
+++ b/drivers/usb/musb/musb_dma.h
@@ -84,7 +84,7 @@ struct musb_hw_ep;
* Only allow DMA mode 1 to be used when the USB will actually generate the
* interrupts we expect.
*/
-#ifdef CONFIG_BLACKFIN
+#if defined(CONFIG_BLACKFIN) && !defined(CONFIG_BF60x)
# undef USE_MODE1
# if !ANOMALY_05000456
# define USE_MODE1
diff --git a/drivers/usb/musb/musb_io.h b/drivers/usb/musb/musb_io.h
index eebeed7..d28b789 100644
--- a/drivers/usb/musb/musb_io.h
+++ b/drivers/usb/musb/musb_io.h
@@ -37,7 +37,7 @@
#include <linux/io.h>
-#ifndef CONFIG_BLACKFIN
+#if !defined(CONFIG_BLACKFIN) || defined(CONFIG_BF60x)
/* NOTE: these offsets are all in bytes */
diff --git a/drivers/usb/musb/musb_regs.h b/drivers/usb/musb/musb_regs.h
index 03f2655..bffa4a1 100644
--- a/drivers/usb/musb/musb_regs.h
+++ b/drivers/usb/musb/musb_regs.h
@@ -214,7 +214,7 @@
#define MUSB_HUBADDR_MULTI_TT 0x80
-#ifndef CONFIG_BLACKFIN
+#if !defined(CONFIG_BLACKFIN) || defined(CONFIG_BF60x)
/*
* Common USB registers
diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c
index 3d1fd52..d53715f 100644
--- a/drivers/usb/musb/musbhsdma.c
+++ b/drivers/usb/musb/musbhsdma.c
@@ -269,7 +269,7 @@ static irqreturn_t dma_controller_irq(int irq, void *private_data)
int_hsdma = musb_readb(mbase, MUSB_HSDMA_INTR);
-#ifdef CONFIG_BLACKFIN
+#if defined(CONFIG_BLACKFIN) && !defined(CONFIG_BF60x)
/* Clear DMA interrupt flags */
musb_writeb(mbase, MUSB_HSDMA_INTR, int_hsdma);
#endif
diff --git a/drivers/usb/musb/musbhsdma.h b/drivers/usb/musb/musbhsdma.h
index f7b13fd2..2a8e082 100644
--- a/drivers/usb/musb/musbhsdma.h
+++ b/drivers/usb/musb/musbhsdma.h
@@ -31,7 +31,7 @@
*
*/
-#ifndef CONFIG_BLACKFIN
+#if !defined(CONFIG_BLACKFIN) || defined(CONFIG_BF60x)
#define MUSB_HSDMA_BASE 0x200
#define MUSB_HSDMA_INTR (MUSB_HSDMA_BASE + 0)
--
1.7.9.5
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