* [PATCH v3 0/2] Add peach-pit board support @ 2014-04-30 11:08 Arun Kumar K 2014-04-30 11:08 ` [PATCH v3 1/2] ARM: dts: Add node references to 5420 Arun Kumar K 2014-04-30 11:08 ` [PATCH v3 2/2] ARM: dts: Add peach-pit board support Arun Kumar K 0 siblings, 2 replies; 9+ messages in thread From: Arun Kumar K @ 2014-04-30 11:08 UTC (permalink / raw) To: linux-samsung-soc, devicetree Cc: kgene.kim, dianders, olofj, t.figa, sachin.kamat, tushar.behera, arunkk.samsung Changes from v2 -------------- - Use reference based node addressing in board dts file as suggested by Tomasz. - Included patch to update 5420.dtsi with node references for all existing nodes. Changes from v1 -------------- - Addressed review comments from Doug, Sachin & Tushar - Removed adc and lid-switch nodes Arun Kumar K (2): ARM: dts: Add node references to 5420 ARM: dts: Add peach-pit board support arch/arm/boot/dts/Makefile | 1 + arch/arm/boot/dts/exynos5420-peach-pit.dts | 156 ++++++++++++++++++++++++++++ arch/arm/boot/dts/exynos5420.dtsi | 26 ++--- 3 files changed, 170 insertions(+), 13 deletions(-) create mode 100644 arch/arm/boot/dts/exynos5420-peach-pit.dts -- 1.7.9.5 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH v3 1/2] ARM: dts: Add node references to 5420 2014-04-30 11:08 [PATCH v3 0/2] Add peach-pit board support Arun Kumar K @ 2014-04-30 11:08 ` Arun Kumar K [not found] ` <1398856138-18837-2-git-send-email-arun.kk-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> 2014-05-01 17:25 ` Tomasz Figa 2014-04-30 11:08 ` [PATCH v3 2/2] ARM: dts: Add peach-pit board support Arun Kumar K 1 sibling, 2 replies; 9+ messages in thread From: Arun Kumar K @ 2014-04-30 11:08 UTC (permalink / raw) To: linux-samsung-soc, devicetree Cc: kgene.kim, dianders, olofj, t.figa, sachin.kamat, tushar.behera, arunkk.samsung Adding references to nodes which do not have it yet in exynos5420.dtsi. This is done so as to use reference based node updation in board files. Signed-off-by: Arun Kumar K <arun.kk@samsung.com> --- arch/arm/boot/dts/exynos5420.dtsi | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi index c3a9a66..2058276 100644 --- a/arch/arm/boot/dts/exynos5420.dtsi +++ b/arch/arm/boot/dts/exynos5420.dtsi @@ -125,7 +125,7 @@ clock-names = "pll_ref", "pll_in", "sclk_audio", "sclk_pcm_in"; }; - codec@11000000 { + codec: codec@11000000 { compatible = "samsung,mfc-v7"; reg = <0x11000000 0x10000>; interrupts = <0 96 0>; @@ -169,7 +169,7 @@ status = "disabled"; }; - mct@101C0000 { + mct: mct@101C0000 { compatible = "samsung,exynos4210-mct"; reg = <0x101C0000 0x800>; interrupt-controller; @@ -270,7 +270,7 @@ interrupts = <0 47 0>; }; - rtc@101E0000 { + rtc: rtc@101E0000 { clocks = <&clock CLK_RTC>; clock-names = "rtc"; status = "disabled"; @@ -430,22 +430,22 @@ status = "disabled"; }; - serial@12C00000 { + serial_0: serial@12C00000 { clocks = <&clock CLK_UART0>, <&clock CLK_SCLK_UART0>; clock-names = "uart", "clk_uart_baud0"; }; - serial@12C10000 { + serial_1: serial@12C10000 { clocks = <&clock CLK_UART1>, <&clock CLK_SCLK_UART1>; clock-names = "uart", "clk_uart_baud0"; }; - serial@12C20000 { + serial_2: serial@12C20000 { clocks = <&clock CLK_UART2>, <&clock CLK_SCLK_UART2>; clock-names = "uart", "clk_uart_baud0"; }; - serial@12C30000 { + serial_3: serial@12C30000 { clocks = <&clock CLK_UART3>, <&clock CLK_SCLK_UART3>; clock-names = "uart", "clk_uart_baud0"; }; @@ -465,14 +465,14 @@ #phy-cells = <0>; }; - dp-controller@145B0000 { + dp: dp-controller@145B0000 { clocks = <&clock CLK_DP1>; clock-names = "dp"; phys = <&dp_phy>; phy-names = "dp"; }; - fimd@14400000 { + fimd: fimd@14400000 { samsung,power-domain = <&disp_pd>; clocks = <&clock CLK_SCLK_FIMD1>, <&clock CLK_FIMD1>; clock-names = "sclk_fimd", "fimd"; @@ -632,7 +632,7 @@ status = "disabled"; }; - hdmi@14530000 { + hdmi: hdmi@14530000 { compatible = "samsung,exynos4212-hdmi"; reg = <0x14530000 0x70000>; interrupts = <0 95 0>; @@ -644,7 +644,7 @@ status = "disabled"; }; - mixer@14450000 { + mixer: mixer@14450000 { compatible = "samsung,exynos5420-mixer"; reg = <0x14450000 0x10000>; interrupts = <0 94 0>; @@ -715,7 +715,7 @@ clock-names = "tmu_apbif", "tmu_triminfo_apbif"; }; - watchdog@101D0000 { + watchdog: watchdog@101D0000 { compatible = "samsung,exynos5420-wdt"; reg = <0x101D0000 0x100>; interrupts = <0 42 0>; @@ -724,7 +724,7 @@ samsung,syscon-phandle = <&pmu_system_controller>; }; - sss@10830000 { + sss: sss@10830000 { compatible = "samsung,exynos4210-secss"; reg = <0x10830000 0x10000>; interrupts = <0 112 0>; -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 9+ messages in thread
[parent not found: <1398856138-18837-2-git-send-email-arun.kk-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>]
* Re: [PATCH v3 1/2] ARM: dts: Add node references to 5420 [not found] ` <1398856138-18837-2-git-send-email-arun.kk-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> @ 2014-05-01 15:09 ` Doug Anderson 0 siblings, 0 replies; 9+ messages in thread From: Doug Anderson @ 2014-05-01 15:09 UTC (permalink / raw) To: Arun Kumar K Cc: linux-samsung-soc, devicetree-u79uwXL29TY76Z2rM5mHXA, Kukjin Kim, Olof Johansson, Tomasz Figa, Sachin Kamat, Tushar Behera, Arun Kumar Arun, On Wed, Apr 30, 2014 at 4:08 AM, Arun Kumar K <arun.kk-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> wrote: > Adding references to nodes which do not have it yet > in exynos5420.dtsi. This is done so as to use reference > based node updation in board files. > > Signed-off-by: Arun Kumar K <arun.kk-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> > --- > arch/arm/boot/dts/exynos5420.dtsi | 26 +++++++++++++------------- > 1 file changed, 13 insertions(+), 13 deletions(-) This looks reasonable to me. Reviewed-by: Doug Anderson <dianders-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org> -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH v3 1/2] ARM: dts: Add node references to 5420 2014-04-30 11:08 ` [PATCH v3 1/2] ARM: dts: Add node references to 5420 Arun Kumar K [not found] ` <1398856138-18837-2-git-send-email-arun.kk-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> @ 2014-05-01 17:25 ` Tomasz Figa 2014-05-02 4:16 ` Arun Kumar K 1 sibling, 1 reply; 9+ messages in thread From: Tomasz Figa @ 2014-05-01 17:25 UTC (permalink / raw) To: Arun Kumar K, linux-samsung-soc, devicetree Cc: kgene.kim, dianders, olofj, t.figa, sachin.kamat, tushar.behera, arunkk.samsung Hi Arun, Looks mostly fine, just some minor nits to improve readability. On 30.04.2014 13:08, Arun Kumar K wrote: > Adding references to nodes which do not have it yet > in exynos5420.dtsi. This is done so as to use reference > based node updation in board files. To stick to correct terminology, the handle that lets you reference a node is called "label", so this patch adds labels to nodes that don't have them yet. > > Signed-off-by: Arun Kumar K <arun.kk@samsung.com> > --- > arch/arm/boot/dts/exynos5420.dtsi | 26 +++++++++++++------------- > 1 file changed, 13 insertions(+), 13 deletions(-) > > diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi > index c3a9a66..2058276 100644 > --- a/arch/arm/boot/dts/exynos5420.dtsi > +++ b/arch/arm/boot/dts/exynos5420.dtsi > @@ -125,7 +125,7 @@ > clock-names = "pll_ref", "pll_in", "sclk_audio", "sclk_pcm_in"; > }; > > - codec@11000000 { > + codec: codec@11000000 { IMHO "mfc" would be a more convenient label. > compatible = "samsung,mfc-v7"; > reg = <0x11000000 0x10000>; > interrupts = <0 96 0>; > @@ -169,7 +169,7 @@ > status = "disabled"; > }; > > - mct@101C0000 { > + mct: mct@101C0000 { > compatible = "samsung,exynos4210-mct"; > reg = <0x101C0000 0x800>; > interrupt-controller; > @@ -270,7 +270,7 @@ > interrupts = <0 47 0>; > }; > > - rtc@101E0000 { > + rtc: rtc@101E0000 { > clocks = <&clock CLK_RTC>; > clock-names = "rtc"; > status = "disabled"; > @@ -430,22 +430,22 @@ > status = "disabled"; > }; > > - serial@12C00000 { > + serial_0: serial@12C00000 { To match with our hardware naming conventions, uart0 would probably be a better label. Similarly for remaining serial ports. With those fixed, feel free to add my Reviewed-by tag. Best regards, Tomasz ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH v3 1/2] ARM: dts: Add node references to 5420 2014-05-01 17:25 ` Tomasz Figa @ 2014-05-02 4:16 ` Arun Kumar K 0 siblings, 0 replies; 9+ messages in thread From: Arun Kumar K @ 2014-05-02 4:16 UTC (permalink / raw) To: Tomasz Figa, Arun Kumar K, linux-samsung-soc, devicetree Cc: kgene.kim, dianders, olofj, t.figa, sachin.kamat, tushar.behera Hi Tomasz, Will make these changes. Thanks & Regards Arun On 05/01/14 22:55, Tomasz Figa wrote: > Hi Arun, > > Looks mostly fine, just some minor nits to improve readability. > > On 30.04.2014 13:08, Arun Kumar K wrote: >> Adding references to nodes which do not have it yet >> in exynos5420.dtsi. This is done so as to use reference >> based node updation in board files. > > To stick to correct terminology, the handle that lets you reference a > node is called "label", so this patch adds labels to nodes that don't > have them yet. > >> >> Signed-off-by: Arun Kumar K <arun.kk@samsung.com> >> --- >> arch/arm/boot/dts/exynos5420.dtsi | 26 +++++++++++++------------- >> 1 file changed, 13 insertions(+), 13 deletions(-) >> >> diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi >> index c3a9a66..2058276 100644 >> --- a/arch/arm/boot/dts/exynos5420.dtsi >> +++ b/arch/arm/boot/dts/exynos5420.dtsi >> @@ -125,7 +125,7 @@ >> clock-names = "pll_ref", "pll_in", "sclk_audio", "sclk_pcm_in"; >> }; >> >> - codec@11000000 { >> + codec: codec@11000000 { > > IMHO "mfc" would be a more convenient label. > >> compatible = "samsung,mfc-v7"; >> reg = <0x11000000 0x10000>; >> interrupts = <0 96 0>; >> @@ -169,7 +169,7 @@ >> status = "disabled"; >> }; >> >> - mct@101C0000 { >> + mct: mct@101C0000 { >> compatible = "samsung,exynos4210-mct"; >> reg = <0x101C0000 0x800>; >> interrupt-controller; >> @@ -270,7 +270,7 @@ >> interrupts = <0 47 0>; >> }; >> >> - rtc@101E0000 { >> + rtc: rtc@101E0000 { >> clocks = <&clock CLK_RTC>; >> clock-names = "rtc"; >> status = "disabled"; >> @@ -430,22 +430,22 @@ >> status = "disabled"; >> }; >> >> - serial@12C00000 { >> + serial_0: serial@12C00000 { > > To match with our hardware naming conventions, uart0 would probably be a > better label. Similarly for remaining serial ports. > > With those fixed, feel free to add my Reviewed-by tag. > > Best regards, > Tomasz > ^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH v3 2/2] ARM: dts: Add peach-pit board support 2014-04-30 11:08 [PATCH v3 0/2] Add peach-pit board support Arun Kumar K 2014-04-30 11:08 ` [PATCH v3 1/2] ARM: dts: Add node references to 5420 Arun Kumar K @ 2014-04-30 11:08 ` Arun Kumar K 2014-05-01 15:40 ` Doug Anderson 1 sibling, 1 reply; 9+ messages in thread From: Arun Kumar K @ 2014-04-30 11:08 UTC (permalink / raw) To: linux-samsung-soc, devicetree Cc: kgene.kim, dianders, olofj, t.figa, sachin.kamat, tushar.behera, arunkk.samsung Adds the google peach-pit board dts file which uses exynos5420 SoC. Signed-off-by: Arun Kumar K <arun.kk@samsung.com> Signed-off-by: Doug Anderson <dianders@chromium.org> --- arch/arm/boot/dts/Makefile | 1 + arch/arm/boot/dts/exynos5420-peach-pit.dts | 156 ++++++++++++++++++++++++++++ 2 files changed, 157 insertions(+) create mode 100644 arch/arm/boot/dts/exynos5420-peach-pit.dts diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 35c146f..3220e29 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -74,6 +74,7 @@ dtb-$(CONFIG_ARCH_EXYNOS) += exynos4210-origen.dtb \ exynos5250-smdk5250.dtb \ exynos5250-snow.dtb \ exynos5420-arndale-octa.dtb \ + exynos5420-peach-pit.dtb \ exynos5420-smdk5420.dtb \ exynos5440-sd5v1.dtb \ exynos5440-ssdk5440.dtb diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts new file mode 100644 index 0000000..03ef094 --- /dev/null +++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts @@ -0,0 +1,156 @@ +/* + * Google Peach Pit Rev 6+ board device tree source + * + * Copyright (c) 2014 Google, Inc + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/dts-v1/; +#include <dt-bindings/input/input.h> +#include <dt-bindings/gpio/gpio.h> +#include "exynos5420.dtsi" + +/ { + model = "Google Peach Pit Rev 6+"; + + compatible = "google,pit-rev16", + "google,pit-rev15", "google,pit-rev14", + "google,pit-rev13", "google,pit-rev12", + "google,pit-rev11", "google,pit-rev10", + "google,pit-rev9", "google,pit-rev8", + "google,pit-rev7", "google,pit-rev6", + "google,pit", "google,peach","samsung,exynos5420", + "samsung,exynos5"; + + memory { + reg = <0x20000000 0x80000000>; + }; + + fixed-rate-clocks { + oscclk { + compatible = "samsung,exynos5420-oscclk"; + clock-frequency = <24000000>; + }; + }; + + gpio-keys { + compatible = "gpio-keys"; + + pinctrl-names = "default"; + pinctrl-0 = <&power_key_irq>; + + power { + label = "Power"; + gpios = <&gpx1 2 GPIO_ACTIVE_LOW>; + linux,code = <KEY_POWER>; + gpio-key,wakeup; + }; + }; + + backlight { + compatible = "pwm-backlight"; + pwms = <&pwm 0 1000000 0>; + brightness-levels = <0 100 500 1000 1500 2000 2500 2800>; + default-brightness-level = <7>; + pinctrl-0 = <&backlight_pwm>; + pinctrl-names = "default"; + }; +}; + +&pinctrl_0 { + tpm_irq: tpm-irq { + samsung,pins = "gpx1-0"; + samsung,pin-function = <0>; + samsung,pin-pud = <0>; + samsung,pin-drv = <0>; + }; + + power_key_irq: power-key-irq { + samsung,pins = "gpx1-2"; + samsung,pin-function = <0>; + samsung,pin-pud = <0>; + samsung,pin-drv = <0>; + }; +}; + +&pinctrl_3 { + backlight_pwm: backlight-pwm { + samsung,pins = "gpb2-0"; + samsung,pin-function = <2>; + samsung,pin-pud = <0>; + samsung,pin-drv = <0>; + }; +}; + +&rtc { + status = "okay"; +}; + +&serial_3 { + status = "okay"; +}; + +&mmc_0 { + status = "okay"; + num-slots = <1>; + broken-cd; + caps2-mmc-hs200-1_8v; + supports-highspeed; + non-removable; + card-detect-delay = <200>; + clock-frequency = <400000000>; + samsung,dw-mshc-ciu-div = <3>; + samsung,dw-mshc-sdr-timing = <0 4>; + samsung,dw-mshc-ddr-timing = <0 2>; + pinctrl-names = "default"; + pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4 &sd0_bus8>; + + slot@0 { + reg = <0>; + bus-width = <8>; + }; +}; + +&mmc_2 { + status = "okay"; + num-slots = <1>; + supports-highspeed; + card-detect-delay = <200>; + clock-frequency = <400000000>; + samsung,dw-mshc-ciu-div = <3>; + samsung,dw-mshc-sdr-timing = <2 3>; + samsung,dw-mshc-ddr-timing = <1 2>; + pinctrl-names = "default"; + pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>; + + slot@0 { + reg = <0>; + bus-width = <4>; + }; +}; + +&hsi2c_9 { + status = "okay"; + clock-frequency = <400000>; + + tpm@20 { + compatible = "infineon,slb9645tt"; + reg = <0x20>; + + /* Unused irq; but still need to configure the pins */ + pinctrl-names = "default"; + pinctrl-0 = <&tpm_irq>; + }; +}; + +/* + * Use longest HW watchdog in SoC (32 seconds) since the hardware + * watchdog provides no debugging information (compared to soft/hard + * lockup detectors) and so should be last resort. + */ +&watchdog { + timeout-sec = <32>; +}; -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 9+ messages in thread
* Re: [PATCH v3 2/2] ARM: dts: Add peach-pit board support 2014-04-30 11:08 ` [PATCH v3 2/2] ARM: dts: Add peach-pit board support Arun Kumar K @ 2014-05-01 15:40 ` Doug Anderson 2014-05-01 17:30 ` Tomasz Figa 0 siblings, 1 reply; 9+ messages in thread From: Doug Anderson @ 2014-05-01 15:40 UTC (permalink / raw) To: Arun Kumar K Cc: linux-samsung-soc, devicetree, Kukjin Kim, Olof Johansson, Tomasz Figa, Sachin Kamat, Tushar Behera, Arun Kumar Arun, On Wed, Apr 30, 2014 at 4:08 AM, Arun Kumar K <arun.kk@samsung.com> wrote: > + memory { > + reg = <0x20000000 0x80000000>; As mentioned in the other thread, I think this should be 0 0 > +&pinctrl_0 { > + tpm_irq: tpm-irq { > + samsung,pins = "gpx1-0"; > + samsung,pin-function = <0>; > + samsung,pin-pud = <0>; Is there any way to use the #defines PIN_PULL_NONE here? > +&pinctrl_3 { > + backlight_pwm: backlight-pwm { > + samsung,pins = "gpb2-0"; > + samsung,pin-function = <2>; > + samsung,pin-pud = <0>; > + samsung,pin-drv = <0>; > + }; The PWM probably belongs in exynos5420-pinctrl.dtsi (though you'd need to call it by a more generic name since it could be used for something other than a backlight). ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH v3 2/2] ARM: dts: Add peach-pit board support 2014-05-01 15:40 ` Doug Anderson @ 2014-05-01 17:30 ` Tomasz Figa 2014-05-01 17:45 ` Doug Anderson 0 siblings, 1 reply; 9+ messages in thread From: Tomasz Figa @ 2014-05-01 17:30 UTC (permalink / raw) To: Doug Anderson, Arun Kumar K Cc: linux-samsung-soc, devicetree, Kukjin Kim, Olof Johansson, Tomasz Figa, Sachin Kamat, Tushar Behera, Arun Kumar On 01.05.2014 17:40, Doug Anderson wrote: > Arun, > > On Wed, Apr 30, 2014 at 4:08 AM, Arun Kumar K <arun.kk@samsung.com> wrote: >> + memory { >> + reg = <0x20000000 0x80000000>; > > As mentioned in the other thread, I think this should be 0 0 I guess it may depend on your boards, but DT might contain safe default configuration that would work on all variants, so if you have for example 1 GiB and 2 GiB variants, 1 GiB configuration here should be fine to get the board running even without a bootloader that could inject remaining data. > >> +&pinctrl_0 { >> + tpm_irq: tpm-irq { >> + samsung,pins = "gpx1-0"; >> + samsung,pin-function = <0>; >> + samsung,pin-pud = <0>; > > Is there any way to use the #defines PIN_PULL_NONE here? I wonder if we already have this kind of #define defined. Keep in mind that this value is specific for Exynos SoCs, so we would need to define it in Exynos-specific header, like include/dt-bindings/pinctrl/exynos.h. > >> +&pinctrl_3 { >> + backlight_pwm: backlight-pwm { >> + samsung,pins = "gpb2-0"; >> + samsung,pin-function = <2>; >> + samsung,pin-pud = <0>; >> + samsung,pin-drv = <0>; >> + }; > > The PWM probably belongs in exynos5420-pinctrl.dtsi (though you'd need > to call it by a more generic name since it could be used for something > other than a backlight). Yes, please add generic pinctrl nodes for all PWM outputs on the SoC to exynos5420-pinctrl.dtsi, as done in exynos4x12-pinctrl.dtsi (see pwmX-out nodes). Best regards, Tomasz ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH v3 2/2] ARM: dts: Add peach-pit board support 2014-05-01 17:30 ` Tomasz Figa @ 2014-05-01 17:45 ` Doug Anderson 0 siblings, 0 replies; 9+ messages in thread From: Doug Anderson @ 2014-05-01 17:45 UTC (permalink / raw) To: Tomasz Figa Cc: Arun Kumar K, linux-samsung-soc, devicetree, Kukjin Kim, Olof Johansson, Tomasz Figa, Sachin Kamat, Tushar Behera, Arun Kumar, Tom Rini Tomasz, On Thu, May 1, 2014 at 10:30 AM, Tomasz Figa <tomasz.figa@gmail.com> wrote: > On 01.05.2014 17:40, Doug Anderson wrote: >> >> Arun, >> >> On Wed, Apr 30, 2014 at 4:08 AM, Arun Kumar K <arun.kk@samsung.com> wrote: >>> >>> + memory { >>> + reg = <0x20000000 0x80000000>; >> >> >> As mentioned in the other thread, I think this should be 0 0 > > > I guess it may depend on your boards, but DT might contain safe default > configuration that would work on all variants, so if you have for example 1 > GiB and 2 GiB variants, 1 GiB configuration here should be fine to get the > board running even without a bootloader that could inject remaining data. That was part of the debate yesterday, I thought. Tom Rini (U-Boot guy) said that right now U-Boot clobbers the memory node _always_ and fills it in with whatever it detects. He wasn't sure this was a good idea. Someone said they thought that it wasn't a good idea, but someone could request U-Boot keep clobbering things by doing <0 0> Tom: did I summarize that correctly? >>> +&pinctrl_0 { >>> + tpm_irq: tpm-irq { >>> + samsung,pins = "gpx1-0"; >>> + samsung,pin-function = <0>; >>> + samsung,pin-pud = <0>; >> >> >> Is there any way to use the #defines PIN_PULL_NONE here? > > > I wonder if we already have this kind of #define defined. Keep in mind that > this value is specific for Exynos SoCs, so we would need to define it in > Exynos-specific header, like include/dt-bindings/pinctrl/exynos.h. I dunno. I'd actually love to see function 0/1 defined (input / output) too. ...and drive strengths (since 0, 1, 2, 3 don't map nicely to x1, x2, x3, x4). I requested PIN_PULL_NONE though, since I saw it being used. ...oh, but it's a #define in a .dtsi. Hrm. arch/arm/boot/dts/s3c64xx-pinctrl.dtsi:#define PIN_PULL_NONE 0 I guess I'd say that it would be nice to do this properly for exynos, but we could do it in a later patch. -Doug ^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2014-05-02 4:16 UTC | newest] Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2014-04-30 11:08 [PATCH v3 0/2] Add peach-pit board support Arun Kumar K 2014-04-30 11:08 ` [PATCH v3 1/2] ARM: dts: Add node references to 5420 Arun Kumar K [not found] ` <1398856138-18837-2-git-send-email-arun.kk-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> 2014-05-01 15:09 ` Doug Anderson 2014-05-01 17:25 ` Tomasz Figa 2014-05-02 4:16 ` Arun Kumar K 2014-04-30 11:08 ` [PATCH v3 2/2] ARM: dts: Add peach-pit board support Arun Kumar K 2014-05-01 15:40 ` Doug Anderson 2014-05-01 17:30 ` Tomasz Figa 2014-05-01 17:45 ` Doug Anderson
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