Re: [PATCH v3] musb: blackfin: add bf60x support

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Hello.

On 29-01-2013 11:41, Bob Liu wrote:

This patch makes musb can work on blackfin bf60x series 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  |   52 ++++++++++++++++++++++++++++--------------
  drivers/usb/musb/musb_core.c |    6 +++--
  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 +-
  10 files changed, 52 insertions(+), 26 deletions(-)

diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index 23a0b7f..4d416bc 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)

   Why parens around BF60x?

diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index 14dab9f..74dd8cf 100644
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
[...]
@@ -523,18 +542,12 @@ static int bfin_remove(struct platform_device *pdev)
  #ifdef CONFIG_PM
  static int bfin_suspend(struct device *dev)
  {
-	struct bfin_glue	*glue = dev_get_drvdata(dev);
-	struct musb		*musb = glue_to_musb(glue);
-
-	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);
-
+#ifdef CONFIG_BF60x
+	int aphy = 0;

   Need empty line here.

+	aphy = bfin_read_USB_APHY_CNTRL();

   Why init to 0 if you immediately override it?

@@ -542,7 +555,12 @@ static int bfin_resume(struct device *dev)
  {
  	struct bfin_glue	*glue = dev_get_drvdata(dev);
  	struct musb		*musb = glue_to_musb(glue);
-
+#ifdef CONFIG_BF60x
+	int aphy;

   Need empty line here.

+	aphy = bfin_read_USB_APHY_CNTRL();
+	bfin_write_USB_APHY_CNTRL(aphy | 0x2);
+	SSYNC();
+#endif
  	bfin_musb_reg_init(musb);

  	return 0;
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index f1c6c54..4dd18a9 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -226,7 +226,7 @@ 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) || CONFIG_BF60x)

   You mean defined(CONFIG_BF60x)? Otherwise it's not correct.

WBR, Sergei

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