* [PATCH] ARM: berlin: add a defconfig @ 2015-02-03 11:28 ` Antoine Tenart 0 siblings, 0 replies; 12+ messages in thread From: Antoine Tenart @ 2015-02-03 11:28 UTC (permalink / raw) To: linux-arm-kernel Marvell Berlin SoCs did not have a custom defconfig and were only supported in multi_v7_defconfig. Adds a proper defconfig, allowing to boot a Berlin SoC with all the currently supported features: SMP, Pinmux, AHCI, Ethernet, I2C, GPIO, USB, SDHCI. Booting with the rootfs on NFS is also supported. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> --- arch/arm/configs/berlin_defconfig | 104 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 arch/arm/configs/berlin_defconfig diff --git a/arch/arm/configs/berlin_defconfig b/arch/arm/configs/berlin_defconfig new file mode 100644 index 000000000000..12430995cab2 --- /dev/null +++ b/arch/arm/configs/berlin_defconfig @@ -0,0 +1,104 @@ +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_EMBEDDED=y +# CONFIG_VM_EVENT_COUNTERS is not set +# CONFIG_SLUB_DEBUG is not set +# CONFIG_COMPAT_BRK is not set +CONFIG_JUMP_LABEL=y +CONFIG_ARCH_BERLIN=y +CONFIG_MACH_BERLIN_BG2=y +CONFIG_MACH_BERLIN_BG2CD=y +CONFIG_MACH_BERLIN_BG2Q=y +CONFIG_SMP=y +CONFIG_AEABI=y +CONFIG_ARM_APPENDED_DTB=y +CONFIG_ARM_ATAG_DTB_COMPAT=y +CONFIG_CMDLINE="console=ttyS0,115200" +CONFIG_VFP=y +CONFIG_NEON=y +# CONFIG_SUSPEND is not set +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_INET=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +# CONFIG_INET_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET_XFRM_MODE_TUNNEL is not set +# CONFIG_INET_XFRM_MODE_BEET is not set +# CONFIG_INET_LRO is not set +# CONFIG_INET_DIAG is not set +CONFIG_TCP_CONG_ADVANCED=y +# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET6_XFRM_MODE_TUNNEL is not set +# CONFIG_INET6_XFRM_MODE_BEET is not set +# CONFIG_IPV6_SIT is not set +# CONFIG_WIRELESS is not set +# CONFIG_UEVENT_HELPER is not set +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y +# CONFIG_FW_LOADER is not set +# CONFIG_BLK_DEV is not set +CONFIG_BLK_DEV_SD=y +# CONFIG_SCSI_LOWLEVEL is not set +CONFIG_ATA=y +# CONFIG_ATA_VERBOSE_ERROR is not set +CONFIG_SATA_AHCI_PLATFORM=y +CONFIG_NETDEVICES=y +# CONFIG_NET_CORE is not set +# CONFIG_NET_VENDOR_ARC is not set +# CONFIG_NET_CADENCE is not set +# CONFIG_NET_VENDOR_BROADCOM is not set +# CONFIG_NET_VENDOR_CIRRUS is not set +# CONFIG_NET_VENDOR_FARADAY is not set +# CONFIG_NET_VENDOR_HISILICON is not set +# CONFIG_NET_VENDOR_INTEL is not set +CONFIG_PXA168_ETH=y +# CONFIG_NET_VENDOR_MICREL is not set +# CONFIG_NET_VENDOR_NATSEMI is not set +# CONFIG_NET_VENDOR_QUALCOMM is not set +# CONFIG_NET_VENDOR_ROCKER is not set +# CONFIG_NET_VENDOR_SAMSUNG is not set +# CONFIG_NET_VENDOR_SEEQ is not set +# CONFIG_NET_VENDOR_SMSC is not set +# CONFIG_NET_VENDOR_STMICRO is not set +# CONFIG_NET_VENDOR_VIA is not set +# CONFIG_NET_VENDOR_WIZNET is not set +# CONFIG_USB_NET_DRIVERS is not set +# CONFIG_WLAN is not set +# CONFIG_INPUT_MOUSEDEV is not set +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +CONFIG_SERIAL_8250=y +CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_8250_DW=y +# CONFIG_HW_RANDOM is not set +CONFIG_I2C=y +CONFIG_I2C_DESIGNWARE_PLATFORM=y +CONFIG_GPIO_DWAPB=y +# CONFIG_HWMON is not set +CONFIG_REGULATOR=y +CONFIG_REGULATOR_FIXED_VOLTAGE=y +CONFIG_USB=y +CONFIG_USB_EHCI_HCD=y +CONFIG_USB_STORAGE=y +CONFIG_USB_CHIPIDEA=y +CONFIG_USB_CHIPIDEA_HOST=y +CONFIG_MMC=y +CONFIG_MMC_SDHCI=y +CONFIG_MMC_SDHCI_PLTFM=y +CONFIG_MMC_SDHCI_PXAV3=y +# CONFIG_IOMMU_SUPPORT is not set +CONFIG_PHY_BERLIN_USB=y +CONFIG_PHY_BERLIN_SATA=y +CONFIG_EXT4_FS=y +CONFIG_CONFIGFS_FS=y +# CONFIG_MISC_FILESYSTEMS is not set +CONFIG_NFS_FS=y +CONFIG_NFS_V4=y +CONFIG_ROOT_NFS=y +CONFIG_PRINTK_TIME=y +# CONFIG_SCHED_DEBUG is not set +# CONFIG_FTRACE is not set +# CONFIG_CRYPTO_ANSI_CPRNG is not set +# CONFIG_CRYPTO_HW is not set -- 2.2.2 ^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH] ARM: berlin: add a defconfig @ 2015-02-03 11:28 ` Antoine Tenart 0 siblings, 0 replies; 12+ messages in thread From: Antoine Tenart @ 2015-02-03 11:28 UTC (permalink / raw) To: sebastian.hesselbarth Cc: linux-arm-kernel, linux-kernel, thomas.petazzoni, zmxu, jszhang, Antoine Tenart Marvell Berlin SoCs did not have a custom defconfig and were only supported in multi_v7_defconfig. Adds a proper defconfig, allowing to boot a Berlin SoC with all the currently supported features: SMP, Pinmux, AHCI, Ethernet, I2C, GPIO, USB, SDHCI. Booting with the rootfs on NFS is also supported. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> --- arch/arm/configs/berlin_defconfig | 104 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 arch/arm/configs/berlin_defconfig diff --git a/arch/arm/configs/berlin_defconfig b/arch/arm/configs/berlin_defconfig new file mode 100644 index 000000000000..12430995cab2 --- /dev/null +++ b/arch/arm/configs/berlin_defconfig @@ -0,0 +1,104 @@ +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_EMBEDDED=y +# CONFIG_VM_EVENT_COUNTERS is not set +# CONFIG_SLUB_DEBUG is not set +# CONFIG_COMPAT_BRK is not set +CONFIG_JUMP_LABEL=y +CONFIG_ARCH_BERLIN=y +CONFIG_MACH_BERLIN_BG2=y +CONFIG_MACH_BERLIN_BG2CD=y +CONFIG_MACH_BERLIN_BG2Q=y +CONFIG_SMP=y +CONFIG_AEABI=y +CONFIG_ARM_APPENDED_DTB=y +CONFIG_ARM_ATAG_DTB_COMPAT=y +CONFIG_CMDLINE="console=ttyS0,115200" +CONFIG_VFP=y +CONFIG_NEON=y +# CONFIG_SUSPEND is not set +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_INET=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +# CONFIG_INET_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET_XFRM_MODE_TUNNEL is not set +# CONFIG_INET_XFRM_MODE_BEET is not set +# CONFIG_INET_LRO is not set +# CONFIG_INET_DIAG is not set +CONFIG_TCP_CONG_ADVANCED=y +# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET6_XFRM_MODE_TUNNEL is not set +# CONFIG_INET6_XFRM_MODE_BEET is not set +# CONFIG_IPV6_SIT is not set +# CONFIG_WIRELESS is not set +# CONFIG_UEVENT_HELPER is not set +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y +# CONFIG_FW_LOADER is not set +# CONFIG_BLK_DEV is not set +CONFIG_BLK_DEV_SD=y +# CONFIG_SCSI_LOWLEVEL is not set +CONFIG_ATA=y +# CONFIG_ATA_VERBOSE_ERROR is not set +CONFIG_SATA_AHCI_PLATFORM=y +CONFIG_NETDEVICES=y +# CONFIG_NET_CORE is not set +# CONFIG_NET_VENDOR_ARC is not set +# CONFIG_NET_CADENCE is not set +# CONFIG_NET_VENDOR_BROADCOM is not set +# CONFIG_NET_VENDOR_CIRRUS is not set +# CONFIG_NET_VENDOR_FARADAY is not set +# CONFIG_NET_VENDOR_HISILICON is not set +# CONFIG_NET_VENDOR_INTEL is not set +CONFIG_PXA168_ETH=y +# CONFIG_NET_VENDOR_MICREL is not set +# CONFIG_NET_VENDOR_NATSEMI is not set +# CONFIG_NET_VENDOR_QUALCOMM is not set +# CONFIG_NET_VENDOR_ROCKER is not set +# CONFIG_NET_VENDOR_SAMSUNG is not set +# CONFIG_NET_VENDOR_SEEQ is not set +# CONFIG_NET_VENDOR_SMSC is not set +# CONFIG_NET_VENDOR_STMICRO is not set +# CONFIG_NET_VENDOR_VIA is not set +# CONFIG_NET_VENDOR_WIZNET is not set +# CONFIG_USB_NET_DRIVERS is not set +# CONFIG_WLAN is not set +# CONFIG_INPUT_MOUSEDEV is not set +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +CONFIG_SERIAL_8250=y +CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_8250_DW=y +# CONFIG_HW_RANDOM is not set +CONFIG_I2C=y +CONFIG_I2C_DESIGNWARE_PLATFORM=y +CONFIG_GPIO_DWAPB=y +# CONFIG_HWMON is not set +CONFIG_REGULATOR=y +CONFIG_REGULATOR_FIXED_VOLTAGE=y +CONFIG_USB=y +CONFIG_USB_EHCI_HCD=y +CONFIG_USB_STORAGE=y +CONFIG_USB_CHIPIDEA=y +CONFIG_USB_CHIPIDEA_HOST=y +CONFIG_MMC=y +CONFIG_MMC_SDHCI=y +CONFIG_MMC_SDHCI_PLTFM=y +CONFIG_MMC_SDHCI_PXAV3=y +# CONFIG_IOMMU_SUPPORT is not set +CONFIG_PHY_BERLIN_USB=y +CONFIG_PHY_BERLIN_SATA=y +CONFIG_EXT4_FS=y +CONFIG_CONFIGFS_FS=y +# CONFIG_MISC_FILESYSTEMS is not set +CONFIG_NFS_FS=y +CONFIG_NFS_V4=y +CONFIG_ROOT_NFS=y +CONFIG_PRINTK_TIME=y +# CONFIG_SCHED_DEBUG is not set +# CONFIG_FTRACE is not set +# CONFIG_CRYPTO_ANSI_CPRNG is not set +# CONFIG_CRYPTO_HW is not set -- 2.2.2 ^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH] ARM: berlin: add a defconfig 2015-02-03 11:28 ` Antoine Tenart @ 2015-02-03 12:54 ` Arnd Bergmann -1 siblings, 0 replies; 12+ messages in thread From: Arnd Bergmann @ 2015-02-03 12:54 UTC (permalink / raw) To: linux-arm-kernel On Tuesday 03 February 2015 12:28:52 Antoine Tenart wrote: > Marvell Berlin SoCs did not have a custom defconfig and were only > supported in multi_v7_defconfig. > > Adds a proper defconfig, allowing to boot a Berlin SoC with all the > currently supported features: SMP, Pinmux, AHCI, Ethernet, I2C, GPIO, > USB, SDHCI. > > Are there any features that are not currently supported by multi_v7_defconfig? If so, please also add them there as loadable modules. Arnd ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] ARM: berlin: add a defconfig @ 2015-02-03 12:54 ` Arnd Bergmann 0 siblings, 0 replies; 12+ messages in thread From: Arnd Bergmann @ 2015-02-03 12:54 UTC (permalink / raw) To: linux-arm-kernel Cc: Antoine Tenart, sebastian.hesselbarth, thomas.petazzoni, zmxu, linux-kernel, jszhang On Tuesday 03 February 2015 12:28:52 Antoine Tenart wrote: > Marvell Berlin SoCs did not have a custom defconfig and were only > supported in multi_v7_defconfig. > > Adds a proper defconfig, allowing to boot a Berlin SoC with all the > currently supported features: SMP, Pinmux, AHCI, Ethernet, I2C, GPIO, > USB, SDHCI. > > Are there any features that are not currently supported by multi_v7_defconfig? If so, please also add them there as loadable modules. Arnd ^ permalink raw reply [flat|nested] 12+ messages in thread
* [PATCH] ARM: berlin: add a defconfig 2015-02-03 12:54 ` Arnd Bergmann @ 2015-02-03 13:47 ` Antoine Tenart -1 siblings, 0 replies; 12+ messages in thread From: Antoine Tenart @ 2015-02-03 13:47 UTC (permalink / raw) To: linux-arm-kernel Hi Arnd, On Tue, Feb 03, 2015 at 01:54:42PM +0100, Arnd Bergmann wrote: > On Tuesday 03 February 2015 12:28:52 Antoine Tenart wrote: > > Marvell Berlin SoCs did not have a custom defconfig and were only > > supported in multi_v7_defconfig. > > > > Adds a proper defconfig, allowing to boot a Berlin SoC with all the > > currently supported features: SMP, Pinmux, AHCI, Ethernet, I2C, GPIO, > > USB, SDHCI. > > > > > > Are there any features that are not currently supported by > multi_v7_defconfig? If so, please also add them there as > loadable modules. I just checked and it seems some of them are missing: - pxa168 ethernet support - Berlin USB PHY support - Berlin SATA PHY support I'll cook up a patch to add these 3 features into multi_v7_defconfig. Thanks! Antoine -- Antoine T?nart, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] ARM: berlin: add a defconfig @ 2015-02-03 13:47 ` Antoine Tenart 0 siblings, 0 replies; 12+ messages in thread From: Antoine Tenart @ 2015-02-03 13:47 UTC (permalink / raw) To: Arnd Bergmann Cc: linux-arm-kernel, Antoine Tenart, sebastian.hesselbarth, thomas.petazzoni, zmxu, linux-kernel, jszhang Hi Arnd, On Tue, Feb 03, 2015 at 01:54:42PM +0100, Arnd Bergmann wrote: > On Tuesday 03 February 2015 12:28:52 Antoine Tenart wrote: > > Marvell Berlin SoCs did not have a custom defconfig and were only > > supported in multi_v7_defconfig. > > > > Adds a proper defconfig, allowing to boot a Berlin SoC with all the > > currently supported features: SMP, Pinmux, AHCI, Ethernet, I2C, GPIO, > > USB, SDHCI. > > > > > > Are there any features that are not currently supported by > multi_v7_defconfig? If so, please also add them there as > loadable modules. I just checked and it seems some of them are missing: - pxa168 ethernet support - Berlin USB PHY support - Berlin SATA PHY support I'll cook up a patch to add these 3 features into multi_v7_defconfig. Thanks! Antoine -- Antoine Ténart, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com ^ permalink raw reply [flat|nested] 12+ messages in thread
* [PATCH] ARM: berlin: add a defconfig 2015-02-03 12:54 ` Arnd Bergmann @ 2015-02-03 22:26 ` Sebastian Hesselbarth -1 siblings, 0 replies; 12+ messages in thread From: Sebastian Hesselbarth @ 2015-02-03 22:26 UTC (permalink / raw) To: linux-arm-kernel On 03.02.2015 13:54, Arnd Bergmann wrote: > On Tuesday 03 February 2015 12:28:52 Antoine Tenart wrote: >> Marvell Berlin SoCs did not have a custom defconfig and were only >> supported in multi_v7_defconfig. >> >> Adds a proper defconfig, allowing to boot a Berlin SoC with all the >> currently supported features: SMP, Pinmux, AHCI, Ethernet, I2C, GPIO, >> USB, SDHCI. >> >> > > Are there any features that are not currently supported by > multi_v7_defconfig? If so, please also add them there as > loadable modules. Antoine, Arnd, do we really need two potentially diverging defconfigs? I am aware that multi_v7_defconfig adds a lot of stuff that is not required for Berlin, but still I think in terms of coverage (both Berlin and non-Berlin stuff) multi_v7 is sufficient, isn't it? However, if there is a strong desire for Berlin-only defconfig, I'll agree. Sebastian ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] ARM: berlin: add a defconfig @ 2015-02-03 22:26 ` Sebastian Hesselbarth 0 siblings, 0 replies; 12+ messages in thread From: Sebastian Hesselbarth @ 2015-02-03 22:26 UTC (permalink / raw) To: Arnd Bergmann, linux-arm-kernel Cc: Antoine Tenart, thomas.petazzoni, zmxu, linux-kernel, jszhang On 03.02.2015 13:54, Arnd Bergmann wrote: > On Tuesday 03 February 2015 12:28:52 Antoine Tenart wrote: >> Marvell Berlin SoCs did not have a custom defconfig and were only >> supported in multi_v7_defconfig. >> >> Adds a proper defconfig, allowing to boot a Berlin SoC with all the >> currently supported features: SMP, Pinmux, AHCI, Ethernet, I2C, GPIO, >> USB, SDHCI. >> >> > > Are there any features that are not currently supported by > multi_v7_defconfig? If so, please also add them there as > loadable modules. Antoine, Arnd, do we really need two potentially diverging defconfigs? I am aware that multi_v7_defconfig adds a lot of stuff that is not required for Berlin, but still I think in terms of coverage (both Berlin and non-Berlin stuff) multi_v7 is sufficient, isn't it? However, if there is a strong desire for Berlin-only defconfig, I'll agree. Sebastian ^ permalink raw reply [flat|nested] 12+ messages in thread
* [PATCH] ARM: berlin: add a defconfig 2015-02-03 22:26 ` Sebastian Hesselbarth @ 2015-02-04 8:54 ` Antoine Tenart -1 siblings, 0 replies; 12+ messages in thread From: Antoine Tenart @ 2015-02-04 8:54 UTC (permalink / raw) To: linux-arm-kernel Hi Sebastian, On Tue, Feb 03, 2015 at 11:26:46PM +0100, Sebastian Hesselbarth wrote: > On 03.02.2015 13:54, Arnd Bergmann wrote: > >On Tuesday 03 February 2015 12:28:52 Antoine Tenart wrote: > >>Marvell Berlin SoCs did not have a custom defconfig and were only > >>supported in multi_v7_defconfig. > >> > >>Adds a proper defconfig, allowing to boot a Berlin SoC with all the > >>currently supported features: SMP, Pinmux, AHCI, Ethernet, I2C, GPIO, > >>USB, SDHCI. > >> > >> > > > >Are there any features that are not currently supported by > >multi_v7_defconfig? If so, please also add them there as > >loadable modules. > > do we really need two potentially diverging defconfigs? > > I am aware that multi_v7_defconfig adds a lot of stuff that is > not required for Berlin, but still I think in terms of coverage > (both Berlin and non-Berlin stuff) multi_v7 is sufficient, isn't > it? In term of coverage, multi_v7_defconfig should be sufficient. The main advantage of having a custom Berlin defconfig would be for me to have a small kernel image and a configuration to start with without having to maintain it out of tree, for Berlin related developments. It's not mandatory, but it's useful at least for me. So the question is whether we want this defconfig mainlined or out of tree. Antoine -- Antoine T?nart, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] ARM: berlin: add a defconfig @ 2015-02-04 8:54 ` Antoine Tenart 0 siblings, 0 replies; 12+ messages in thread From: Antoine Tenart @ 2015-02-04 8:54 UTC (permalink / raw) To: Sebastian Hesselbarth Cc: Arnd Bergmann, linux-arm-kernel, Antoine Tenart, thomas.petazzoni, zmxu, linux-kernel, jszhang Hi Sebastian, On Tue, Feb 03, 2015 at 11:26:46PM +0100, Sebastian Hesselbarth wrote: > On 03.02.2015 13:54, Arnd Bergmann wrote: > >On Tuesday 03 February 2015 12:28:52 Antoine Tenart wrote: > >>Marvell Berlin SoCs did not have a custom defconfig and were only > >>supported in multi_v7_defconfig. > >> > >>Adds a proper defconfig, allowing to boot a Berlin SoC with all the > >>currently supported features: SMP, Pinmux, AHCI, Ethernet, I2C, GPIO, > >>USB, SDHCI. > >> > >> > > > >Are there any features that are not currently supported by > >multi_v7_defconfig? If so, please also add them there as > >loadable modules. > > do we really need two potentially diverging defconfigs? > > I am aware that multi_v7_defconfig adds a lot of stuff that is > not required for Berlin, but still I think in terms of coverage > (both Berlin and non-Berlin stuff) multi_v7 is sufficient, isn't > it? In term of coverage, multi_v7_defconfig should be sufficient. The main advantage of having a custom Berlin defconfig would be for me to have a small kernel image and a configuration to start with without having to maintain it out of tree, for Berlin related developments. It's not mandatory, but it's useful at least for me. So the question is whether we want this defconfig mainlined or out of tree. Antoine -- Antoine Ténart, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com ^ permalink raw reply [flat|nested] 12+ messages in thread
* [PATCH] ARM: berlin: add a defconfig 2015-02-04 8:54 ` Antoine Tenart @ 2015-02-04 10:26 ` Arnd Bergmann -1 siblings, 0 replies; 12+ messages in thread From: Arnd Bergmann @ 2015-02-04 10:26 UTC (permalink / raw) To: linux-arm-kernel On Wednesday 04 February 2015 09:54:04 Antoine Tenart wrote: > Hi Sebastian, > > On Tue, Feb 03, 2015 at 11:26:46PM +0100, Sebastian Hesselbarth wrote: > > On 03.02.2015 13:54, Arnd Bergmann wrote: > > >On Tuesday 03 February 2015 12:28:52 Antoine Tenart wrote: > > >>Marvell Berlin SoCs did not have a custom defconfig and were only > > >>supported in multi_v7_defconfig. > > >> > > >>Adds a proper defconfig, allowing to boot a Berlin SoC with all the > > >>currently supported features: SMP, Pinmux, AHCI, Ethernet, I2C, GPIO, > > >>USB, SDHCI. > > >> > > >> > > > > > >Are there any features that are not currently supported by > > >multi_v7_defconfig? If so, please also add them there as > > >loadable modules. > > > > do we really need two potentially diverging defconfigs? > > > > I am aware that multi_v7_defconfig adds a lot of stuff that is > > not required for Berlin, but still I think in terms of coverage > > (both Berlin and non-Berlin stuff) multi_v7 is sufficient, isn't > > it? > > In term of coverage, multi_v7_defconfig should be sufficient. The main > advantage of having a custom Berlin defconfig would be for me to have a > small kernel image and a configuration to start with without having to > maintain it out of tree, for Berlin related developments. > > It's not mandatory, but it's useful at least for me. So the question > is whether we want this defconfig mainlined or out of tree. I would prefer to have fewer defconfigs in general, but we generally tend to do one defconfig per mach directory because it's always been that way. Older platforms have more than one, and we try to cut them down. If all platform specific drivers were loadable modules or had an explicit dependency on the platform, you could trivially turn the multi_v7_defconfig into a platform specific one by turning off the other platforms, but at the moment it's not that easy. Arnd ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] ARM: berlin: add a defconfig @ 2015-02-04 10:26 ` Arnd Bergmann 0 siblings, 0 replies; 12+ messages in thread From: Arnd Bergmann @ 2015-02-04 10:26 UTC (permalink / raw) To: linux-arm-kernel Cc: Antoine Tenart, Sebastian Hesselbarth, thomas.petazzoni, zmxu, linux-kernel, jszhang On Wednesday 04 February 2015 09:54:04 Antoine Tenart wrote: > Hi Sebastian, > > On Tue, Feb 03, 2015 at 11:26:46PM +0100, Sebastian Hesselbarth wrote: > > On 03.02.2015 13:54, Arnd Bergmann wrote: > > >On Tuesday 03 February 2015 12:28:52 Antoine Tenart wrote: > > >>Marvell Berlin SoCs did not have a custom defconfig and were only > > >>supported in multi_v7_defconfig. > > >> > > >>Adds a proper defconfig, allowing to boot a Berlin SoC with all the > > >>currently supported features: SMP, Pinmux, AHCI, Ethernet, I2C, GPIO, > > >>USB, SDHCI. > > >> > > >> > > > > > >Are there any features that are not currently supported by > > >multi_v7_defconfig? If so, please also add them there as > > >loadable modules. > > > > do we really need two potentially diverging defconfigs? > > > > I am aware that multi_v7_defconfig adds a lot of stuff that is > > not required for Berlin, but still I think in terms of coverage > > (both Berlin and non-Berlin stuff) multi_v7 is sufficient, isn't > > it? > > In term of coverage, multi_v7_defconfig should be sufficient. The main > advantage of having a custom Berlin defconfig would be for me to have a > small kernel image and a configuration to start with without having to > maintain it out of tree, for Berlin related developments. > > It's not mandatory, but it's useful at least for me. So the question > is whether we want this defconfig mainlined or out of tree. I would prefer to have fewer defconfigs in general, but we generally tend to do one defconfig per mach directory because it's always been that way. Older platforms have more than one, and we try to cut them down. If all platform specific drivers were loadable modules or had an explicit dependency on the platform, you could trivially turn the multi_v7_defconfig into a platform specific one by turning off the other platforms, but at the moment it's not that easy. Arnd ^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2015-02-04 10:26 UTC | newest] Thread overview: 12+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2015-02-03 11:28 [PATCH] ARM: berlin: add a defconfig Antoine Tenart 2015-02-03 11:28 ` Antoine Tenart 2015-02-03 12:54 ` Arnd Bergmann 2015-02-03 12:54 ` Arnd Bergmann 2015-02-03 13:47 ` Antoine Tenart 2015-02-03 13:47 ` Antoine Tenart 2015-02-03 22:26 ` Sebastian Hesselbarth 2015-02-03 22:26 ` Sebastian Hesselbarth 2015-02-04 8:54 ` Antoine Tenart 2015-02-04 8:54 ` Antoine Tenart 2015-02-04 10:26 ` Arnd Bergmann 2015-02-04 10:26 ` Arnd Bergmann
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