[PATCH] hw/arm/pxa2xx: Do not wire up OHCI for PXA255

Guenter Roeck posted 1 patch 4 years, 1 month ago
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git fetch https://github.com/patchew-project/qemu tags/patchew/20200313160215.28155-1-linux@roeck-us.net
Maintainers: Peter Maydell <peter.maydell@linaro.org>, Andrzej Zaborowski <balrogg@gmail.com>
hw/arm/pxa2xx.c | 3 ---
1 file changed, 3 deletions(-)
[PATCH] hw/arm/pxa2xx: Do not wire up OHCI for PXA255
Posted by Guenter Roeck 4 years, 1 month ago
PXA255 does not support a USB OHCI controller, so don't wire it up.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 hw/arm/pxa2xx.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c
index 56a36202d7..336c9bad4a 100644
--- a/hw/arm/pxa2xx.c
+++ b/hw/arm/pxa2xx.c
@@ -2290,9 +2290,6 @@ PXA2xxState *pxa255_init(MemoryRegion *address_space, unsigned int sdram_size)
         s->ssp[i] = (SSIBus *)qdev_get_child_bus(dev, "ssi");
     }
 
-    sysbus_create_simple("sysbus-ohci", 0x4c000000,
-                         qdev_get_gpio_in(s->pic, PXA2XX_PIC_USBH1));
-
     s->pcmcia[0] = pxa2xx_pcmcia_init(address_space, 0x20000000);
     s->pcmcia[1] = pxa2xx_pcmcia_init(address_space, 0x30000000);
 
-- 
2.17.1


Re: [PATCH] hw/arm/pxa2xx: Do not wire up OHCI for PXA255
Posted by Peter Maydell 4 years, 1 month ago
On Fri, 13 Mar 2020 at 16:02, Guenter Roeck <linux@roeck-us.net> wrote:
>
> PXA255 does not support a USB OHCI controller, so don't wire it up.
>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
>  hw/arm/pxa2xx.c | 3 ---
>  1 file changed, 3 deletions(-)
>



Applied to target-arm.next, thanks.

-- PMM

Re: [PATCH] hw/arm/pxa2xx: Do not wire up OHCI for PXA255
Posted by Peter Maydell 4 years, 1 month ago
On Fri, 13 Mar 2020 at 16:02, Guenter Roeck <linux@roeck-us.net> wrote:
>
> PXA255 does not support a USB OHCI controller, so don't wire it up.
>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
>  hw/arm/pxa2xx.c | 3 ---
>  1 file changed, 3 deletions(-)
>
> diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c
> index 56a36202d7..336c9bad4a 100644
> --- a/hw/arm/pxa2xx.c
> +++ b/hw/arm/pxa2xx.c
> @@ -2290,9 +2290,6 @@ PXA2xxState *pxa255_init(MemoryRegion *address_space, unsigned int sdram_size)
>          s->ssp[i] = (SSIBus *)qdev_get_child_bus(dev, "ssi");
>      }
>
> -    sysbus_create_simple("sysbus-ohci", 0x4c000000,
> -                         qdev_get_gpio_in(s->pic, PXA2XX_PIC_USBH1));
> -
>      s->pcmcia[0] = pxa2xx_pcmcia_init(address_space, 0x20000000);
>      s->pcmcia[1] = pxa2xx_pcmcia_init(address_space, 0x30000000);
>

How did you notice this bug? Was it just reading the code?

thanks
-- PMM

Re: [PATCH] hw/arm/pxa2xx: Do not wire up OHCI for PXA255
Posted by Guenter Roeck 4 years, 1 month ago
On 3/16/20 8:35 AM, Peter Maydell wrote:
> On Fri, 13 Mar 2020 at 16:02, Guenter Roeck <linux@roeck-us.net> wrote:
>>
>> PXA255 does not support a USB OHCI controller, so don't wire it up.
>>
>> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
>> ---
>>  hw/arm/pxa2xx.c | 3 ---
>>  1 file changed, 3 deletions(-)
>>
>> diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c
>> index 56a36202d7..336c9bad4a 100644
>> --- a/hw/arm/pxa2xx.c
>> +++ b/hw/arm/pxa2xx.c
>> @@ -2290,9 +2290,6 @@ PXA2xxState *pxa255_init(MemoryRegion *address_space, unsigned int sdram_size)
>>          s->ssp[i] = (SSIBus *)qdev_get_child_bus(dev, "ssi");
>>      }
>>
>> -    sysbus_create_simple("sysbus-ohci", 0x4c000000,
>> -                         qdev_get_gpio_in(s->pic, PXA2XX_PIC_USBH1));
>> -
>>      s->pcmcia[0] = pxa2xx_pcmcia_init(address_space, 0x20000000);
>>      s->pcmcia[1] = pxa2xx_pcmcia_init(address_space, 0x30000000);
>>
> 
> How did you notice this bug? Was it just reading the code?
> 

I found that it was wired up and I tried to enable it from Linux, which failed.
After that, I dug up the chip manual and realized that the pxa255 hardware
does not support it.

Guenter