Patchwork [U-Boot,PATCHv2,2/4] at91sam9x5: enable USB support for 9x5ek board.

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Submitter Richard Genoud
Date Nov. 28, 2012, 11:48 a.m.
Message ID <1354103289-967-3-git-send-email-richard.genoud@gmail.com>
Download mbox | patch
Permalink /patch/202436/
State Superseded
Headers show

Comments

Richard Genoud - Nov. 28, 2012, 11:48 a.m.
Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
---
 arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c |   10 ++++++++++
 arch/arm/include/asm/arch-at91/at91sam9x5.h      |    2 ++
 board/atmel/at91sam9x5ek/at91sam9x5ek.c          |    3 +++
 drivers/usb/host/ohci-at91.c                     |    6 ++++--
 4 files changed, 19 insertions(+), 2 deletions(-)
Bo Shen - Nov. 29, 2012, 5:22 a.m.
Hi Richard,

On 11/28/2012 19:48, Richard Genoud wrote:
> Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
> ---
>   arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c |   10 ++++++++++
>   arch/arm/include/asm/arch-at91/at91sam9x5.h      |    2 ++
>   board/atmel/at91sam9x5ek/at91sam9x5ek.c          |    3 +++
>   drivers/usb/host/ohci-at91.c                     |    6 ++++--
>   4 files changed, 19 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c b/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c
> index 9348552..f2a05c8 100644
> --- a/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c
> +++ b/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c
> @@ -193,6 +193,16 @@ void at91_spi1_hw_init(unsigned long cs_mask)
>   }
>   #endif
>
> +#if defined(CONFIG_USB_OHCI_NEW) || defined(CONFIG_USB_EHCI)
> +void at91_uhp_hw_init(void)
> +{
> +	/* Enable VBus on UHP ports */
> +	at91_set_pio_output(AT91_PIO_PORTD, 18, 0); /* port A */
> +	at91_set_pio_output(AT91_PIO_PORTD, 19, 0); /* port B */
> +	at91_set_pio_output(AT91_PIO_PORTD, 20, 0); /* port C */
> +}
> +#endif
> +

As port C doesn't support EHCI, so, I think we should deal with this 
carefully.
---<8---
#if OHCI
#else EHCI
#endif
--->8---
I think this will be better.

Best Regards
Bo Shen
Richard Genoud - Nov. 30, 2012, 9:06 a.m.
2012/11/29 Bo Shen <voice.shen@atmel.com>:
Hi !
> As port C doesn't support EHCI, so, I think we should deal with this
> carefully.
> ---<8---
> #if OHCI
> #else EHCI
> #endif
> --->8---
> I think this will be better.

yes, you're right, I'll change that

Patch

diff --git a/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c b/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c
index 9348552..f2a05c8 100644
--- a/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c
+++ b/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c
@@ -193,6 +193,16 @@  void at91_spi1_hw_init(unsigned long cs_mask)
 }
 #endif
 
+#if defined(CONFIG_USB_OHCI_NEW) || defined(CONFIG_USB_EHCI)
+void at91_uhp_hw_init(void)
+{
+	/* Enable VBus on UHP ports */
+	at91_set_pio_output(AT91_PIO_PORTD, 18, 0); /* port A */
+	at91_set_pio_output(AT91_PIO_PORTD, 19, 0); /* port B */
+	at91_set_pio_output(AT91_PIO_PORTD, 20, 0); /* port C */
+}
+#endif
+
 #ifdef CONFIG_MACB
 void at91_macb_hw_init(void)
 {
diff --git a/arch/arm/include/asm/arch-at91/at91sam9x5.h b/arch/arm/include/asm/arch-at91/at91sam9x5.h
index 0e728c9..de0f1b1 100644
--- a/arch/arm/include/asm/arch-at91/at91sam9x5.h
+++ b/arch/arm/include/asm/arch-at91/at91sam9x5.h
@@ -154,6 +154,8 @@ 
 #define ATMEL_PIO_PORTS         4
 #define CPU_HAS_PIO3
 #define PIO_SCDR_DIV            (0x3fff <<  0)  /* Slow Clock Divider Mask */
+#define ATMEL_PMC_UHP		AT91SAM926x_PMC_UHP
+#define ATMEL_ID_UHP		ATMEL_ID_UHPHS
 
 /*
  * at91sam9x5 specific prototypes
diff --git a/board/atmel/at91sam9x5ek/at91sam9x5ek.c b/board/atmel/at91sam9x5ek/at91sam9x5ek.c
index edb0886..8773e6f 100644
--- a/board/atmel/at91sam9x5ek/at91sam9x5ek.c
+++ b/board/atmel/at91sam9x5ek/at91sam9x5ek.c
@@ -295,6 +295,9 @@  int board_init(void)
 	at91_macb_hw_init();
 #endif
 
+#if defined(CONFIG_USB_OHCI_NEW) || defined(CONFIG_USB_EHCI)
+	at91_uhp_hw_init();
+#endif
 #ifdef CONFIG_LCD
 	at91sam9x5ek_lcd_hw_init();
 #endif
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 9532dd9..efd711d 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -41,7 +41,8 @@  int usb_cpu_init(void)
 	writel(get_pllb_init(), &pmc->pllbr);
 	while ((readl(&pmc->sr) & AT91_PMC_LOCKB) != AT91_PMC_LOCKB)
 		;
-#elif defined(CONFIG_AT91SAM9G45) || defined(CONFIG_AT91SAM9M10G45)
+#elif defined(CONFIG_AT91SAM9G45) || defined(CONFIG_AT91SAM9M10G45) || \
+	defined(CONFIG_AT91SAM9X5)
 	/* Enable UPLL */
 	writel(readl(&pmc->uckr) | AT91_PMC_UPLLEN | AT91_PMC_BIASEN,
 		&pmc->uckr);
@@ -81,7 +82,8 @@  int usb_cpu_stop(void)
 	writel(0, &pmc->pllbr);
 	while ((readl(&pmc->sr) & AT91_PMC_LOCKB) != 0)
 		;
-#elif defined(CONFIG_AT91SAM9G45) || defined(CONFIG_AT91SAM9M10G45)
+#elif defined(CONFIG_AT91SAM9G45) || defined(CONFIG_AT91SAM9M10G45) || \
+	defined(CONFIG_AT91SAM9X5)
 	/* Disable UPLL */
 	writel(readl(&pmc->uckr) & (~AT91_PMC_UPLLEN), &pmc->uckr);
 	while ((readl(&pmc->sr) & AT91_PMC_LOCKU) == AT91_PMC_LOCKU)