diff mbox

[Resend:] PCI: designware: fix the boot noise for missing *config* reg space

Message ID 1437515651-20883-1-git-send-email-m-karicheri2@ti.com (mailing list archive)
State New, archived
Delegated to: Bjorn Helgaas
Headers show

Commit Message

Murali Karicheri July 21, 2015, 9:54 p.m. UTC
Currently on Keystone SoCs, boot up log shows an unnecessary boot
noise as follows:-

[    0.365823] keystone-pcie 21021000.pcie: missing *config* reg space

Keystone uses older version of designware h/w that doesn't have ATU
support. So va_cfg0_base and va_cfg1_base are already set up in
ks_dw_pcie_host_init() before calling dw_pcie_host_init() and
they point to the remote config space address va (both same for Keystone).
So add a check to avoid this boot noise on Keystone.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
---
 - Resend with "PCI: designware" prefix in subject
 drivers/pci/host/pcie-designware.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Murali Karicheri July 30, 2015, 3:50 p.m. UTC | #1
On 07/21/2015 05:54 PM, Murali Karicheri wrote:
> Currently on Keystone SoCs, boot up log shows an unnecessary boot
> noise as follows:-
>
> [    0.365823] keystone-pcie 21021000.pcie: missing *config* reg space
>
> Keystone uses older version of designware h/w that doesn't have ATU
> support. So va_cfg0_base and va_cfg1_base are already set up in
> ks_dw_pcie_host_init() before calling dw_pcie_host_init() and
> they point to the remote config space address va (both same for Keystone).
> So add a check to avoid this boot noise on Keystone.
>
> Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
> ---
>   - Resend with "PCI: designware" prefix in subject
>   drivers/pci/host/pcie-designware.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
> index 69486be..b48b8a2 100644
> --- a/drivers/pci/host/pcie-designware.c
> +++ b/drivers/pci/host/pcie-designware.c
> @@ -388,7 +388,7 @@ int dw_pcie_host_init(struct pcie_port *pp)
>   		addrp = of_get_address(np, index, NULL, NULL);
>   		pp->cfg0_mod_base = of_read_number(addrp, ns);
>   		pp->cfg1_mod_base = pp->cfg0_mod_base + pp->cfg0_size;
> -	} else {
> +	} else if (!pp->va_cfg0_base) {
>   		dev_err(pp->dev, "missing *config* reg space\n");
>   	}
>
>
A gentle ping to review and apply this to pci next.
Han Jingoo July 31, 2015, 8:18 a.m. UTC | #2
On 2015. 7. 22., at AM 6:54, Murali Karicheri <m-karicheri2@ti.com> wrote:
> 
> Currently on Keystone SoCs, boot up log shows an unnecessary boot
> noise as follows:-
> 
> [    0.365823] keystone-pcie 21021000.pcie: missing *config* reg space
> 
> Keystone uses older version of designware h/w that doesn't have ATU
> support. So va_cfg0_base and va_cfg1_base are already set up in
> ks_dw_pcie_host_init() before calling dw_pcie_host_init() and
> they point to the remote config space address va (both same for Keystone).
> So add a check to avoid this boot noise on Keystone.
> 
> Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>

Acked-by: Jingoo Han <jingoohan1@gmail.com>

Best regards,
Jingoo Han

> ---
> - Resend with "PCI: designware" prefix in subject
> drivers/pci/host/pcie-designware.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
> index 69486be..b48b8a2 100644
> --- a/drivers/pci/host/pcie-designware.c
> +++ b/drivers/pci/host/pcie-designware.c
> @@ -388,7 +388,7 @@ int dw_pcie_host_init(struct pcie_port *pp)
>        addrp = of_get_address(np, index, NULL, NULL);
>        pp->cfg0_mod_base = of_read_number(addrp, ns);
>        pp->cfg1_mod_base = pp->cfg0_mod_base + pp->cfg0_size;
> -    } else {
> +    } else if (!pp->va_cfg0_base) {
>        dev_err(pp->dev, "missing *config* reg space\n");
>    }
> 
> -- 
> 1.9.1
> 
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Murali Karicheri Sept. 23, 2015, 9 p.m. UTC | #3
On 07/30/2015 11:50 AM, Murali Karicheri wrote:
> On 07/21/2015 05:54 PM, Murali Karicheri wrote:
>> Currently on Keystone SoCs, boot up log shows an unnecessary boot
>> noise as follows:-
>>
>> [    0.365823] keystone-pcie 21021000.pcie: missing *config* reg space
>>
>> Keystone uses older version of designware h/w that doesn't have ATU
>> support. So va_cfg0_base and va_cfg1_base are already set up in
>> ks_dw_pcie_host_init() before calling dw_pcie_host_init() and
>> they point to the remote config space address va (both same for
>> Keystone).
>> So add a check to avoid this boot noise on Keystone.
>>
>> Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
>> ---
>>   - Resend with "PCI: designware" prefix in subject
>>   drivers/pci/host/pcie-designware.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/pci/host/pcie-designware.c
>> b/drivers/pci/host/pcie-designware.c
>> index 69486be..b48b8a2 100644
>> --- a/drivers/pci/host/pcie-designware.c
>> +++ b/drivers/pci/host/pcie-designware.c
>> @@ -388,7 +388,7 @@ int dw_pcie_host_init(struct pcie_port *pp)
>>           addrp = of_get_address(np, index, NULL, NULL);
>>           pp->cfg0_mod_base = of_read_number(addrp, ns);
>>           pp->cfg1_mod_base = pp->cfg0_mod_base + pp->cfg0_size;
>> -    } else {
>> +    } else if (!pp->va_cfg0_base) {
>>           dev_err(pp->dev, "missing *config* reg space\n");
>>       }
>>
>>
> A gentle ping to review and apply this to pci next.
>
Bjorn,

Not sure why this is not picked for merge. Can you pick this up please!
diff mbox

Patch

diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index 69486be..b48b8a2 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -388,7 +388,7 @@  int dw_pcie_host_init(struct pcie_port *pp)
 		addrp = of_get_address(np, index, NULL, NULL);
 		pp->cfg0_mod_base = of_read_number(addrp, ns);
 		pp->cfg1_mod_base = pp->cfg0_mod_base + pp->cfg0_size;
-	} else {
+	} else if (!pp->va_cfg0_base) {
 		dev_err(pp->dev, "missing *config* reg space\n");
 	}