Re: [U-Boot] [PATCH v1 2/2] x86: acpi: Add DMA descriptors for I2C1 on Intel Tangier

[Bin Meng]

On Thu, Feb 28, 2019 at 11:39 AM Bin Meng  wrote:
>
> On Tue, Feb 26, 2019 at 7:43 PM Andy Shevchenko
>  wrote:
> >
> > Intel Tangier SoC has a general purpose DMA which can serve to speed up
> > communications on SPI and I2C serial buses.
> >
> > Provide DMA descriptors to utilize this capability in the future.
> >
> > Note, I2C6, which is available to user, has no DMA request lines connected.
> >
> > Signed-off-by: Andy Shevchenko 
> > ---
> >  .../include/asm/arch-tangier/acpi/southcluster.asl| 11 +++
> >  1 file changed, 11 insertions(+)
> >
>
> Reviewed-by: Bin Meng 

applied to u-boot-x86, thanks!
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Re: [U-Boot] [PATCH v1 2/2] x86: acpi: Add DMA descriptors for I2C1 on Intel Tangier

[Bin Meng]

On Tue, Feb 26, 2019 at 7:43 PM Andy Shevchenko
 wrote:
>
> Intel Tangier SoC has a general purpose DMA which can serve to speed up
> communications on SPI and I2C serial buses.
>
> Provide DMA descriptors to utilize this capability in the future.
>
> Note, I2C6, which is available to user, has no DMA request lines connected.
>
> Signed-off-by: Andy Shevchenko 
> ---
>  .../include/asm/arch-tangier/acpi/southcluster.asl| 11 +++
>  1 file changed, 11 insertions(+)
>

Reviewed-by: Bin Meng 
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[U-Boot] [PATCH v1 2/2] x86: acpi: Add DMA descriptors for I2C1 on Intel Tangier

[Andy Shevchenko]

Intel Tangier SoC has a general purpose DMA which can serve to speed up
communications on SPI and I2C serial buses.

Provide DMA descriptors to utilize this capability in the future.

Note, I2C6, which is available to user, has no DMA request lines connected.

Signed-off-by: Andy Shevchenko 
---
 .../include/asm/arch-tangier/acpi/southcluster.asl| 11 +++
 1 file changed, 11 insertions(+)

diff --git a/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl 
b/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl
index e4d876ab78..1f940511a1 100644
--- a/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl
+++ b/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl
@@ -232,6 +232,17 @@ Device (PCI0)
 {
 Return (STA_VISIBLE)
 }
+
+Name (RBUF, ResourceTemplate()
+{
+FixedDMA(0x0009, 0x, Width32bit, )
+FixedDMA(0x0008, 0x0001, Width32bit, )
+})
+
+Method (_CRS, 0, NotSerialized)
+{
+Return (RBUF)
+}
 }
 
 Device (I2C6)
-- 
2.20.1

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