Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1571727 > unrolled thread

[PATCH 0/3] Updates for ARC VDK platform

Back to article view | Back to linux.kernel

Contents

  [PATCH 0/3] Updates for ARC VDK platform Alexey Brodkin <Alexey.Brodkin@synopsys.com> - 2017-02-01 17:50 +0100
    [PATCH 3/3] arc: vdk: Add support of UIO Alexey Brodkin <Alexey.Brodkin@synopsys.com> - 2017-02-01 17:50 +0100
    [PATCH 2/3] arc: vdk: Add support of MMC controller Alexey Brodkin <Alexey.Brodkin@synopsys.com> - 2017-02-01 17:50 +0100
    Re: [PATCH 0/3] Updates for ARC VDK platform Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2017-02-01 18:20 +0100
      Re: [PATCH 0/3] Updates for ARC VDK platform Alexey Brodkin <Alexey.Brodkin@synopsys.com> - 2017-02-01 18:20 +0100
        Re: [PATCH 0/3] Updates for ARC VDK platform Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2017-02-01 18:30 +0100
          Re: [PATCH 0/3] Updates for ARC VDK platform Alexey Brodkin <Alexey.Brodkin@synopsys.com> - 2017-02-01 18:40 +0100

#1571727 — [PATCH 0/3] Updates for ARC VDK platform

This series improves ARC VDK support in upstream Linux kernel by:
 1) Removal of UP configuration which is no longer supported by ARC VDK.
    Instead SMP platform with all but master cores halted is used to mimic
    UP system.

 2) Adding off-the-tree patches that enable MMC card and UIO

Alexey Brodkin (3):
  arc: vdk: Disable halt on reset
  arc: vdk: Add support of MMC controller
  arc: vdk: Add support of UIO

 arch/arc/boot/dts/vdk_axs10x_mb.dtsi    | 26 ++++++++++++++++++++++++++
 arch/arc/configs/vdk_hs38_smp_defconfig | 10 +++++++---
 2 files changed, 33 insertions(+), 3 deletions(-)

-- 
2.7.4

[toc] | [next] | [standalone]

#1571730 — [PATCH 3/3] arc: vdk: Add support of UIO

ARC VDK for EVSS uses UIO for communication with Embedded Vision
Subsystem.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
---
 arch/arc/boot/dts/vdk_axs10x_mb.dtsi    | 8 ++++++++
 arch/arc/configs/vdk_hs38_smp_defconfig | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/arch/arc/boot/dts/vdk_axs10x_mb.dtsi b/arch/arc/boot/dts/vdk_axs10x_mb.dtsi
index 1953914b9f4f..f0df59b23e21 100644
--- a/arch/arc/boot/dts/vdk_axs10x_mb.dtsi
+++ b/arch/arc/boot/dts/vdk_axs10x_mb.dtsi
@@ -112,5 +112,13 @@
 			interrupts = <7>;
 			bus-width = <4>;
 		};
+
+		/* Embedded Vision subsystem UIO mappings; only relevant for EV VDK */
+		uio_ev: uio@0xD0000000 {
+			compatible = "generic-uio";
+			reg = <0xD0000000 0x2000 0xD1000000 0x2000 0x90000000 0x10000000 0xC0000000 0x10000000>;
+			reg-names = "ev_gsa", "ev_ctrl", "ev_shared_mem", "ev_code_mem";
+			interrupts = <23>;
+		};
 	};
 };
diff --git a/arch/arc/configs/vdk_hs38_smp_defconfig b/arch/arc/configs/vdk_hs38_smp_defconfig
index e03413fbc784..1a9b19903c9a 100644
--- a/arch/arc/configs/vdk_hs38_smp_defconfig
+++ b/arch/arc/configs/vdk_hs38_smp_defconfig
@@ -81,6 +81,8 @@ CONFIG_MMC=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_PLTFM=y
 CONFIG_MMC_DW=y
+CONFIG_UIO=y
+CONFIG_UIO_PDRV_GENIRQ=y
 # CONFIG_IOMMU_SUPPORT is not set
 CONFIG_EXT3_FS=y
 CONFIG_MSDOS_FS=y
-- 
2.7.4

[toc] | [prev] | [next] | [standalone]

#1571732 — [PATCH 2/3] arc: vdk: Add support of MMC controller

ARC VDK virtual platform emulates host MMC controller (DW Mobile Storage)
and moreover rootfs is situated on that virtual card.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
---
 arch/arc/boot/dts/vdk_axs10x_mb.dtsi    | 18 ++++++++++++++++++
 arch/arc/configs/vdk_hs38_smp_defconfig |  4 ++++
 2 files changed, 22 insertions(+)

diff --git a/arch/arc/boot/dts/vdk_axs10x_mb.dtsi b/arch/arc/boot/dts/vdk_axs10x_mb.dtsi
index 99498a4b4216..1953914b9f4f 100644
--- a/arch/arc/boot/dts/vdk_axs10x_mb.dtsi
+++ b/arch/arc/boot/dts/vdk_axs10x_mb.dtsi
@@ -23,6 +23,12 @@
 				#clock-cells = <0>;
 			};
 
+			mmcclk: mmcclk {
+				compatible = "fixed-clock";
+				clock-frequency = <50000000>;
+				#clock-cells = <0>;
+			};
+
 			pguclk: pguclk {
 				#clock-cells = <0>;
 				compatible = "fixed-clock";
@@ -94,5 +100,17 @@
 			interrupts = <5>;
 			interrupt-names = "arc_ps2_irq";
 		};
+
+		mmc@0x15000 {
+			compatible = "snps,dw-mshc";
+			reg = <0x15000 0x400>;
+			num-slots = <1>;
+			fifo-depth = <1024>;
+			card-detect-delay = <200>;
+			clocks = <&apbclk>, <&mmcclk>;
+			clock-names = "biu", "ciu";
+			interrupts = <7>;
+			bus-width = <4>;
+		};
 	};
 };
diff --git a/arch/arc/configs/vdk_hs38_smp_defconfig b/arch/arc/configs/vdk_hs38_smp_defconfig
index f6361de41eec..e03413fbc784 100644
--- a/arch/arc/configs/vdk_hs38_smp_defconfig
+++ b/arch/arc/configs/vdk_hs38_smp_defconfig
@@ -77,6 +77,10 @@ CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_OHCI_HCD_PLATFORM=y
 CONFIG_USB_STORAGE=y
 CONFIG_USB_SERIAL=y
+CONFIG_MMC=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MMC_DW=y
 # CONFIG_IOMMU_SUPPORT is not set
 CONFIG_EXT3_FS=y
 CONFIG_MSDOS_FS=y
-- 
2.7.4

[toc] | [prev] | [next] | [standalone]

#1571792

On 02/01/2017 08:43 AM, Alexey Brodkin wrote:
> This series improves ARC VDK support in upstream Linux kernel by:
>  1) Removal of UP configuration which is no longer supported by ARC VDK.
>     Instead SMP platform with all but master cores halted is used to mimic
>     UP system.

Is this missing from the series ?

[toc] | [prev] | [next] | [standalone]

#1571796

Hi Vineet,

On Wed, 2017-02-01 at 09:13 -0800, Vineet Gupta wrote:
> On 02/01/2017 08:43 AM, Alexey Brodkin wrote:
> > 
> > This series improves ARC VDK support in upstream Linux kernel by:
> >  1) Removal of UP configuration which is no longer supported by ARC VDK.
> >     Instead SMP platform with all but master cores halted is used to mimic
> >     UP system.
> 
> Is this missing from the series ?

Indeed, I was doing 2 things in parallel and so missed -1 patch :(
I may either send v2 with missing patch included or save it for another series
that ditches most of UP configs as well. What suits you better?

-Alexey

[toc] | [prev] | [next] | [standalone]

#1571804

On 02/01/2017 09:16 AM, Alexey Brodkin wrote:
> Hi Vineet,
>
> On Wed, 2017-02-01 at 09:13 -0800, Vineet Gupta wrote:
>> On 02/01/2017 08:43 AM, Alexey Brodkin wrote:
>>> This series improves ARC VDK support in upstream Linux kernel by:
>>>  1) Removal of UP configuration which is no longer supported by ARC VDK.
>>>     Instead SMP platform with all but master cores halted is used to mimic
>>>     UP system.
>> Is this missing from the series ?
> Indeed, I was doing 2 things in parallel and so missed -1 patch :(
> I may either send v2 with missing patch included or save it for another series
> that ditches most of UP configs as well. What suits you better?

Latter would be better !

-Vineet

[toc] | [prev] | [next] | [standalone]

#1571827

Hi Vineet,

On Wed, 2017-02-01 at 09:22 -0800, Vineet Gupta wrote:
> On 02/01/2017 09:16 AM, Alexey Brodkin wrote:
> > 
> > Hi Vineet,
> > 
> > On Wed, 2017-02-01 at 09:13 -0800, Vineet Gupta wrote:
> > > 
> > > On 02/01/2017 08:43 AM, Alexey Brodkin wrote:
> > > > 
> > > > This series improves ARC VDK support in upstream Linux kernel by:
> > > >  1) Removal of UP configuration which is no longer supported by ARC VDK.
> > > >     Instead SMP platform with all but master cores halted is used to mimic
> > > >     UP system.
> > > Is this missing from the series ?
> > Indeed, I was doing 2 things in parallel and so missed -1 patch :(
> > I may either send v2 with missing patch included or save it for another series
> > that ditches most of UP configs as well. What suits you better?
> 
> Latter would be better !

So then you're going to apply existing series as it is sometime soon and
in the meantime I'll prepare another one, right?

-Alexey

[toc] | [prev] | [standalone]

Back to top | Article view | linux.kernel

csiph-web