[PATCH 1/4] ARM: dts: stm32: split sdram pin & timing parameter into specific board dts

Patrice CHOTARD patrice.chotard at foss.st.com
Thu Mar 25 15:46:27 CET 2021


Hi Dillon

On 3/11/21 7:43 AM, dillon.minfei at gmail.com wrote:
> From: dillon min <dillon.minfei at gmail.com>
> 
> As different boards has their own sdram hw connection, mount different
> sdram modules, so move sdram timing parameter and pin configuration
> to their board device tree.
> 
> Signed-off-by: dillon min <dillon.minfei at gmail.com>
> ---
>  arch/arm/dts/stm32h7-u-boot.dtsi          | 95 ------------------------------
>  arch/arm/dts/stm32h743i-disco-u-boot.dtsi | 98 +++++++++++++++++++++++++++++++
>  arch/arm/dts/stm32h743i-eval-u-boot.dtsi  | 98 +++++++++++++++++++++++++++++++
>  3 files changed, 196 insertions(+), 95 deletions(-)
> 
> diff --git a/arch/arm/dts/stm32h7-u-boot.dtsi b/arch/arm/dts/stm32h7-u-boot.dtsi
> index 54dd406..e34d066 100644
> --- a/arch/arm/dts/stm32h7-u-boot.dtsi
> +++ b/arch/arm/dts/stm32h7-u-boot.dtsi
> @@ -36,30 +36,6 @@
>  			pinctrl-0 = <&fmc_pins>;
>  			pinctrl-names = "default";
>  			status = "okay";
> -
> -			/*
> -			 * Memory configuration from sdram datasheet IS42S32800G-6BLI
> -			 * first bank is bank at 0
> -			 * second bank is bank at 1
> -			 */
> -			bank1: bank at 1 {
> -				st,sdram-control = /bits/ 8 <NO_COL_9
> -							     NO_ROW_12
> -							     MWIDTH_32
> -							     BANKS_4
> -							     CAS_2
> -							     SDCLK_3
> -							     RD_BURST_EN
> -							     RD_PIPE_DL_0>;
> -				st,sdram-timing = /bits/ 8 <TMRD_1
> -							    TXSR_1
> -							    TRAS_1
> -							    TRC_6
> -							    TRP_2
> -							    TWR_1
> -							    TRCD_1>;
> -				st,sdram-refcount = <1539>;
> -			};
>  		};
>  	};
>  };
> @@ -136,77 +112,6 @@
>  	compatible = "st,stm32-gpio";
>  };
>  
> -&pinctrl {
> -	fmc_pins: fmc at 0 {
> -		pins {
> -			pinmux = <STM32_PINMUX('D', 0, AF12)>,
> -				 <STM32_PINMUX('D', 1, AF12)>,
> -				 <STM32_PINMUX('D', 8, AF12)>,
> -				 <STM32_PINMUX('D', 9, AF12)>,
> -				 <STM32_PINMUX('D',10, AF12)>,
> -				 <STM32_PINMUX('D',14, AF12)>,
> -				 <STM32_PINMUX('D',15, AF12)>,
> -
> -				 <STM32_PINMUX('E', 0, AF12)>,
> -				 <STM32_PINMUX('E', 1, AF12)>,
> -				 <STM32_PINMUX('E', 7, AF12)>,
> -				 <STM32_PINMUX('E', 8, AF12)>,
> -				 <STM32_PINMUX('E', 9, AF12)>,
> -				 <STM32_PINMUX('E',10, AF12)>,
> -				 <STM32_PINMUX('E',11, AF12)>,
> -				 <STM32_PINMUX('E',12, AF12)>,
> -				 <STM32_PINMUX('E',13, AF12)>,
> -				 <STM32_PINMUX('E',14, AF12)>,
> -				 <STM32_PINMUX('E',15, AF12)>,
> -
> -				 <STM32_PINMUX('F', 0, AF12)>,
> -				 <STM32_PINMUX('F', 1, AF12)>,
> -				 <STM32_PINMUX('F', 2, AF12)>,
> -				 <STM32_PINMUX('F', 3, AF12)>,
> -				 <STM32_PINMUX('F', 4, AF12)>,
> -				 <STM32_PINMUX('F', 5, AF12)>,
> -				 <STM32_PINMUX('F',11, AF12)>,
> -				 <STM32_PINMUX('F',12, AF12)>,
> -				 <STM32_PINMUX('F',13, AF12)>,
> -				 <STM32_PINMUX('F',14, AF12)>,
> -				 <STM32_PINMUX('F',15, AF12)>,
> -
> -				 <STM32_PINMUX('G', 0, AF12)>,
> -				 <STM32_PINMUX('G', 1, AF12)>,
> -				 <STM32_PINMUX('G', 2, AF12)>,
> -				 <STM32_PINMUX('G', 4, AF12)>,
> -				 <STM32_PINMUX('G', 5, AF12)>,
> -				 <STM32_PINMUX('G', 8, AF12)>,
> -				 <STM32_PINMUX('G',15, AF12)>,
> -
> -				 <STM32_PINMUX('H', 5, AF12)>,
> -				 <STM32_PINMUX('H', 6, AF12)>,
> -				 <STM32_PINMUX('H', 7, AF12)>,
> -				 <STM32_PINMUX('H', 8, AF12)>,
> -				 <STM32_PINMUX('H', 9, AF12)>,
> -				 <STM32_PINMUX('H',10, AF12)>,
> -				 <STM32_PINMUX('H',11, AF12)>,
> -				 <STM32_PINMUX('H',12, AF12)>,
> -				 <STM32_PINMUX('H',13, AF12)>,
> -				 <STM32_PINMUX('H',14, AF12)>,
> -				 <STM32_PINMUX('H',15, AF12)>,
> -
> -				 <STM32_PINMUX('I', 0, AF12)>,
> -				 <STM32_PINMUX('I', 1, AF12)>,
> -				 <STM32_PINMUX('I', 2, AF12)>,
> -				 <STM32_PINMUX('I', 3, AF12)>,
> -				 <STM32_PINMUX('I', 4, AF12)>,
> -				 <STM32_PINMUX('I', 5, AF12)>,
> -				 <STM32_PINMUX('I', 6, AF12)>,
> -				 <STM32_PINMUX('I', 7, AF12)>,
> -				 <STM32_PINMUX('I', 9, AF12)>,
> -				 <STM32_PINMUX('I',10, AF12)>;
> -
> -			slew-rate = <3>;
> -		};
> -	};
> -};
> -
>  &pwrcfg {
>  	u-boot,dm-pre-reloc;
>  };
> diff --git a/arch/arm/dts/stm32h743i-disco-u-boot.dtsi b/arch/arm/dts/stm32h743i-disco-u-boot.dtsi
> index 5965afc..02e28c6 100644
> --- a/arch/arm/dts/stm32h743i-disco-u-boot.dtsi
> +++ b/arch/arm/dts/stm32h743i-disco-u-boot.dtsi
> @@ -1,3 +1,101 @@
>  // SPDX-License-Identifier: GPL-2.0+
>  
>  #include <stm32h7-u-boot.dtsi>
> +
> +&fmc {
> +
> +	/*
> +	 * Memory configuration from sdram datasheet IS42S32800G-6BLI
> +	 * first bank is bank at 0
> +	 * second bank is bank at 1
> +	 */
> +	bank1: bank at 1 {
> +		st,sdram-control = /bits/ 8 <NO_COL_9
> +					     NO_ROW_12
> +					     MWIDTH_32
> +					     BANKS_4
> +					     CAS_2
> +					     SDCLK_3
> +					     RD_BURST_EN
> +					     RD_PIPE_DL_0>;
> +		st,sdram-timing = /bits/ 8 <TMRD_1
> +					    TXSR_1
> +					    TRAS_1
> +					    TRC_6
> +					    TRP_2
> +					    TWR_1
> +					    TRCD_1>;
> +		st,sdram-refcount = <1539>;
> +	};
> +};
> +
> +&pinctrl {
> +	fmc_pins: fmc at 0 {
> +		pins {
> +			pinmux = <STM32_PINMUX('D', 0, AF12)>,
> +				 <STM32_PINMUX('D', 1, AF12)>,
> +				 <STM32_PINMUX('D', 8, AF12)>,
> +				 <STM32_PINMUX('D', 9, AF12)>,
> +				 <STM32_PINMUX('D',10, AF12)>,
> +				 <STM32_PINMUX('D',14, AF12)>,
> +				 <STM32_PINMUX('D',15, AF12)>,
> +
> +				 <STM32_PINMUX('E', 0, AF12)>,
> +				 <STM32_PINMUX('E', 1, AF12)>,
> +				 <STM32_PINMUX('E', 7, AF12)>,
> +				 <STM32_PINMUX('E', 8, AF12)>,
> +				 <STM32_PINMUX('E', 9, AF12)>,
> +				 <STM32_PINMUX('E',10, AF12)>,
> +				 <STM32_PINMUX('E',11, AF12)>,
> +				 <STM32_PINMUX('E',12, AF12)>,
> +				 <STM32_PINMUX('E',13, AF12)>,
> +				 <STM32_PINMUX('E',14, AF12)>,
> +				 <STM32_PINMUX('E',15, AF12)>,
> +
> +				 <STM32_PINMUX('F', 0, AF12)>,
> +				 <STM32_PINMUX('F', 1, AF12)>,
> +				 <STM32_PINMUX('F', 2, AF12)>,
> +				 <STM32_PINMUX('F', 3, AF12)>,
> +				 <STM32_PINMUX('F', 4, AF12)>,
> +				 <STM32_PINMUX('F', 5, AF12)>,
> +				 <STM32_PINMUX('F',11, AF12)>,
> +				 <STM32_PINMUX('F',12, AF12)>,
> +				 <STM32_PINMUX('F',13, AF12)>,
> +				 <STM32_PINMUX('F',14, AF12)>,
> +				 <STM32_PINMUX('F',15, AF12)>,
> +
> +				 <STM32_PINMUX('G', 0, AF12)>,
> +				 <STM32_PINMUX('G', 1, AF12)>,
> +				 <STM32_PINMUX('G', 2, AF12)>,
> +				 <STM32_PINMUX('G', 4, AF12)>,
> +				 <STM32_PINMUX('G', 5, AF12)>,
> +				 <STM32_PINMUX('G', 8, AF12)>,
> +				 <STM32_PINMUX('G',15, AF12)>,
> +
> +				 <STM32_PINMUX('H', 5, AF12)>,
> +				 <STM32_PINMUX('H', 6, AF12)>,
> +				 <STM32_PINMUX('H', 7, AF12)>,
> +				 <STM32_PINMUX('H', 8, AF12)>,
> +				 <STM32_PINMUX('H', 9, AF12)>,
> +				 <STM32_PINMUX('H',10, AF12)>,
> +				 <STM32_PINMUX('H',11, AF12)>,
> +				 <STM32_PINMUX('H',12, AF12)>,
> +				 <STM32_PINMUX('H',13, AF12)>,
> +				 <STM32_PINMUX('H',14, AF12)>,
> +				 <STM32_PINMUX('H',15, AF12)>,
> +
> +				 <STM32_PINMUX('I', 0, AF12)>,
> +				 <STM32_PINMUX('I', 1, AF12)>,
> +				 <STM32_PINMUX('I', 2, AF12)>,
> +				 <STM32_PINMUX('I', 3, AF12)>,
> +				 <STM32_PINMUX('I', 4, AF12)>,
> +				 <STM32_PINMUX('I', 5, AF12)>,
> +				 <STM32_PINMUX('I', 6, AF12)>,
> +				 <STM32_PINMUX('I', 7, AF12)>,
> +				 <STM32_PINMUX('I', 9, AF12)>,
> +				 <STM32_PINMUX('I',10, AF12)>;
> +
> +			slew-rate = <3>;
> +		};
> +	};
> +};
> diff --git a/arch/arm/dts/stm32h743i-eval-u-boot.dtsi b/arch/arm/dts/stm32h743i-eval-u-boot.dtsi
> index 5965afc..02e28c6 100644
> --- a/arch/arm/dts/stm32h743i-eval-u-boot.dtsi
> +++ b/arch/arm/dts/stm32h743i-eval-u-boot.dtsi
> @@ -1,3 +1,101 @@
>  // SPDX-License-Identifier: GPL-2.0+
>  
>  #include <stm32h7-u-boot.dtsi>
> +
> +&fmc {
> +
> +	/*
> +	 * Memory configuration from sdram datasheet IS42S32800G-6BLI
> +	 * first bank is bank at 0
> +	 * second bank is bank at 1
> +	 */
> +	bank1: bank at 1 {
> +		st,sdram-control = /bits/ 8 <NO_COL_9
> +					     NO_ROW_12
> +					     MWIDTH_32
> +					     BANKS_4
> +					     CAS_2
> +					     SDCLK_3
> +					     RD_BURST_EN
> +					     RD_PIPE_DL_0>;
> +		st,sdram-timing = /bits/ 8 <TMRD_1
> +					    TXSR_1
> +					    TRAS_1
> +					    TRC_6
> +					    TRP_2
> +					    TWR_1
> +					    TRCD_1>;
> +		st,sdram-refcount = <1539>;
> +	};
> +};
> +
> +&pinctrl {
> +	fmc_pins: fmc at 0 {
> +		pins {
> +			pinmux = <STM32_PINMUX('D', 0, AF12)>,
> +				 <STM32_PINMUX('D', 1, AF12)>,
> +				 <STM32_PINMUX('D', 8, AF12)>,
> +				 <STM32_PINMUX('D', 9, AF12)>,
> +				 <STM32_PINMUX('D',10, AF12)>,
> +				 <STM32_PINMUX('D',14, AF12)>,
> +				 <STM32_PINMUX('D',15, AF12)>,
> +
> +				 <STM32_PINMUX('E', 0, AF12)>,
> +				 <STM32_PINMUX('E', 1, AF12)>,
> +				 <STM32_PINMUX('E', 7, AF12)>,
> +				 <STM32_PINMUX('E', 8, AF12)>,
> +				 <STM32_PINMUX('E', 9, AF12)>,
> +				 <STM32_PINMUX('E',10, AF12)>,
> +				 <STM32_PINMUX('E',11, AF12)>,
> +				 <STM32_PINMUX('E',12, AF12)>,
> +				 <STM32_PINMUX('E',13, AF12)>,
> +				 <STM32_PINMUX('E',14, AF12)>,
> +				 <STM32_PINMUX('E',15, AF12)>,
> +
> +				 <STM32_PINMUX('F', 0, AF12)>,
> +				 <STM32_PINMUX('F', 1, AF12)>,
> +				 <STM32_PINMUX('F', 2, AF12)>,
> +				 <STM32_PINMUX('F', 3, AF12)>,
> +				 <STM32_PINMUX('F', 4, AF12)>,
> +				 <STM32_PINMUX('F', 5, AF12)>,
> +				 <STM32_PINMUX('F',11, AF12)>,
> +				 <STM32_PINMUX('F',12, AF12)>,
> +				 <STM32_PINMUX('F',13, AF12)>,
> +				 <STM32_PINMUX('F',14, AF12)>,
> +				 <STM32_PINMUX('F',15, AF12)>,
> +
> +				 <STM32_PINMUX('G', 0, AF12)>,
> +				 <STM32_PINMUX('G', 1, AF12)>,
> +				 <STM32_PINMUX('G', 2, AF12)>,
> +				 <STM32_PINMUX('G', 4, AF12)>,
> +				 <STM32_PINMUX('G', 5, AF12)>,
> +				 <STM32_PINMUX('G', 8, AF12)>,
> +				 <STM32_PINMUX('G',15, AF12)>,
> +
> +				 <STM32_PINMUX('H', 5, AF12)>,
> +				 <STM32_PINMUX('H', 6, AF12)>,
> +				 <STM32_PINMUX('H', 7, AF12)>,
> +				 <STM32_PINMUX('H', 8, AF12)>,
> +				 <STM32_PINMUX('H', 9, AF12)>,
> +				 <STM32_PINMUX('H',10, AF12)>,
> +				 <STM32_PINMUX('H',11, AF12)>,
> +				 <STM32_PINMUX('H',12, AF12)>,
> +				 <STM32_PINMUX('H',13, AF12)>,
> +				 <STM32_PINMUX('H',14, AF12)>,
> +				 <STM32_PINMUX('H',15, AF12)>,
> +
> +				 <STM32_PINMUX('I', 0, AF12)>,
> +				 <STM32_PINMUX('I', 1, AF12)>,
> +				 <STM32_PINMUX('I', 2, AF12)>,
> +				 <STM32_PINMUX('I', 3, AF12)>,
> +				 <STM32_PINMUX('I', 4, AF12)>,
> +				 <STM32_PINMUX('I', 5, AF12)>,
> +				 <STM32_PINMUX('I', 6, AF12)>,
> +				 <STM32_PINMUX('I', 7, AF12)>,
> +				 <STM32_PINMUX('I', 9, AF12)>,
> +				 <STM32_PINMUX('I',10, AF12)>;
> +
> +			slew-rate = <3>;
> +		};
> +	};
> +};
> 

Reviewed-by: Patrice Chotard <patrice.chotard at foss.st.com>

Thanks
Patrice


More information about the U-Boot mailing list