From dd4f25a3ed55cc4c429869e522ee57ed05cce821 Mon Sep 17 00:00:00 2001 From: Jiri Prchal Date: Mon, 13 Oct 2014 11:02:16 +0200 Subject: [PATCH 1/4] ARM: at91: at91sam9x5 dt: add usart dma definitions to dt This patch adds usart dma definitions to both dtsi for sam9x5 chips. Without usage of dma it's unable to catch all bytes on usart receiver. Signed-off-by: Jiri Prchal Acked-by: Ludovic Desroches Signed-off-by: Nicolas Ferre --- arch/arm/boot/dts/at91sam9x5.dtsi | 12 ++++++++++++ arch/arm/boot/dts/at91sam9x5_usart3.dtsi | 3 +++ 2 files changed, 15 insertions(+) diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi index 726274f7959b6..bbb3ba65165f5 100644 --- a/arch/arm/boot/dts/at91sam9x5.dtsi +++ b/arch/arm/boot/dts/at91sam9x5.dtsi @@ -860,6 +860,9 @@ interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_dbgu>; + dmas = <&dma1 1 AT91_DMA_CFG_PER_ID(8)>, + <&dma1 1 (AT91_DMA_CFG_PER_ID(9) | AT91_DMA_CFG_FIFOCFG_ASAP)>; + dma-names = "tx", "rx"; clocks = <&mck>; clock-names = "usart"; status = "disabled"; @@ -871,6 +874,9 @@ interrupts = <5 IRQ_TYPE_LEVEL_HIGH 5>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usart0>; + dmas = <&dma0 1 AT91_DMA_CFG_PER_ID(3)>, + <&dma0 1 (AT91_DMA_CFG_PER_ID(4) | AT91_DMA_CFG_FIFOCFG_ASAP)>; + dma-names = "tx", "rx"; clocks = <&usart0_clk>; clock-names = "usart"; status = "disabled"; @@ -882,6 +888,9 @@ interrupts = <6 IRQ_TYPE_LEVEL_HIGH 5>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usart1>; + dmas = <&dma0 1 AT91_DMA_CFG_PER_ID(5)>, + <&dma0 1 (AT91_DMA_CFG_PER_ID(6) | AT91_DMA_CFG_FIFOCFG_ASAP)>; + dma-names = "tx", "rx"; clocks = <&usart1_clk>; clock-names = "usart"; status = "disabled"; @@ -893,6 +902,9 @@ interrupts = <7 IRQ_TYPE_LEVEL_HIGH 5>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usart2>; + dmas = <&dma1 1 AT91_DMA_CFG_PER_ID(12)>, + <&dma1 1 (AT91_DMA_CFG_PER_ID(13) | AT91_DMA_CFG_FIFOCFG_ASAP)>; + dma-names = "tx", "rx"; clocks = <&usart2_clk>; clock-names = "usart"; status = "disabled"; diff --git a/arch/arm/boot/dts/at91sam9x5_usart3.dtsi b/arch/arm/boot/dts/at91sam9x5_usart3.dtsi index 140217a543846..43bb5b51caa66 100644 --- a/arch/arm/boot/dts/at91sam9x5_usart3.dtsi +++ b/arch/arm/boot/dts/at91sam9x5_usart3.dtsi @@ -57,6 +57,9 @@ interrupts = <8 IRQ_TYPE_LEVEL_HIGH 5>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usart3>; + dmas = <&dma1 1 AT91_DMA_CFG_PER_ID(14)>, + <&dma1 1 (AT91_DMA_CFG_PER_ID(15) | AT91_DMA_CFG_FIFOCFG_ASAP)>; + dma-names = "tx", "rx"; clocks = <&usart3_clk>; clock-names = "usart"; status = "disabled"; From 5563d3489692a7f4239aca78b95d2a05a21d0d6a Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Tue, 21 Oct 2014 18:47:42 +0200 Subject: [PATCH 2/4] ARM: at91/dt/trivial: at91sam9x5_can.dtsi: comment and whitespace fixes Signed-off-by: Nicolas Ferre --- arch/arm/boot/dts/at91sam9x5_can.dtsi | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/arm/boot/dts/at91sam9x5_can.dtsi b/arch/arm/boot/dts/at91sam9x5_can.dtsi index f44ab7702a12f..ebe4147529bba 100644 --- a/arch/arm/boot/dts/at91sam9x5_can.dtsi +++ b/arch/arm/boot/dts/at91sam9x5_can.dtsi @@ -1,5 +1,5 @@ /* - * at91sam9x5_macb0.dtsi - Device Tree Include file for AT91SAM9x5 SoC with 1 + * at91sam9x5_can.dtsi - Device Tree Include file for AT91SAM9x5 SoC with 1 * Ethernet interface. * * Copyright (C) 2013 Boris BREZILLON @@ -20,10 +20,10 @@ reg = <29>; }; - can1_clk: can1_clk { - #clock-cells = <0>; - reg = <30>; - }; + can1_clk: can1_clk { + #clock-cells = <0>; + reg = <30>; + }; }; }; }; From 316a88da4c327931958f92c4b2f1ee268215fc1b Mon Sep 17 00:00:00 2001 From: Alexander Stein Date: Tue, 7 Oct 2014 13:51:50 +0200 Subject: [PATCH 3/4] ARM: at91/dt: at91sam9x5: Add CAN device nodes Add the missing CAN devices node including their pin muxing to the shared .dtsi for at91sam9x5. Actually include this file. Signed-off-by: Alexander Stein Acked-by: Alexandre Belloni Signed-off-by: Nicolas Ferre --- arch/arm/boot/dts/at91sam9x25.dtsi | 1 + arch/arm/boot/dts/at91sam9x35.dtsi | 1 + arch/arm/boot/dts/at91sam9x5_can.dtsi | 40 +++++++++++++++++++++++++++ 3 files changed, 42 insertions(+) diff --git a/arch/arm/boot/dts/at91sam9x25.dtsi b/arch/arm/boot/dts/at91sam9x25.dtsi index c2554219f7a4e..3c5fa33889970 100644 --- a/arch/arm/boot/dts/at91sam9x25.dtsi +++ b/arch/arm/boot/dts/at91sam9x25.dtsi @@ -10,6 +10,7 @@ #include "at91sam9x5_usart3.dtsi" #include "at91sam9x5_macb0.dtsi" #include "at91sam9x5_macb1.dtsi" +#include "at91sam9x5_can.dtsi" / { model = "Atmel AT91SAM9X25 SoC"; diff --git a/arch/arm/boot/dts/at91sam9x35.dtsi b/arch/arm/boot/dts/at91sam9x35.dtsi index 8eac66ce0ab77..499cdc81f4c07 100644 --- a/arch/arm/boot/dts/at91sam9x35.dtsi +++ b/arch/arm/boot/dts/at91sam9x35.dtsi @@ -8,6 +8,7 @@ #include "at91sam9x5.dtsi" #include "at91sam9x5_macb0.dtsi" +#include "at91sam9x5_can.dtsi" / { model = "Atmel AT91SAM9X35 SoC"; diff --git a/arch/arm/boot/dts/at91sam9x5_can.dtsi b/arch/arm/boot/dts/at91sam9x5_can.dtsi index ebe4147529bba..8eb2f9c1b9784 100644 --- a/arch/arm/boot/dts/at91sam9x5_can.dtsi +++ b/arch/arm/boot/dts/at91sam9x5_can.dtsi @@ -26,6 +26,46 @@ }; }; }; + + can0: can@f8000000 { + compatible = "atmel,at91sam9x5-can"; + reg = <0xf8000000 0x300>; + interrupts = <29 IRQ_TYPE_LEVEL_HIGH 3>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_can0_rx_tx>; + clocks = <&can0_clk>; + clock-names = "can_clk"; + status = "disabled"; + }; + + can1: can@f8004000 { + compatible = "atmel,at91sam9x5-can"; + reg = <0xf8004000 0x300>; + interrupts = <30 IRQ_TYPE_LEVEL_HIGH 3>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_can1_rx_tx>; + clocks = <&can1_clk>; + clock-names = "can_clk"; + status = "disabled"; + }; + + pinctrl@fffff400 { + can0 { + pinctrl_can0_rx_tx: can0_rx_tx { + atmel,pins = + ; /* CANTX0, conflicts with DTXD */ + }; + }; + + can1 { + pinctrl_can1_rx_tx: can1_rx_tx { + atmel,pins = + ; /* CANTX1, conflicts with TXD1 */ + }; + }; + }; }; }; }; From 2667c6adfcf686e8c5a5b56e8c7c65af001df2cb Mon Sep 17 00:00:00 2001 From: Alexander Stein Date: Mon, 6 Oct 2014 14:40:07 +0200 Subject: [PATCH 4/4] ARM: at91/dt: at91sam9263: Add CAN device nodes Add the missing CAN devices node including their pin muxing. The required clock node already exists. Signed-off-by: Alexander Stein Acked-by: Alexandre Belloni Signed-off-by: Nicolas Ferre --- arch/arm/boot/dts/at91sam9263.dtsi | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/arch/arm/boot/dts/at91sam9263.dtsi b/arch/arm/boot/dts/at91sam9263.dtsi index 51416c7d06253..653e4395b7cbe 100644 --- a/arch/arm/boot/dts/at91sam9263.dtsi +++ b/arch/arm/boot/dts/at91sam9263.dtsi @@ -677,6 +677,14 @@ }; }; + can { + pinctrl_can_rx_tx: can_rx_tx { + atmel,pins = + ; /* CANTX, conflicts with PCK0 */ + }; + }; + pioA: gpio@fffff200 { compatible = "atmel,at91rm9200-gpio"; reg = <0xfffff200 0x200>; @@ -905,6 +913,17 @@ clock-names = "pwm_clk"; status = "disabled"; }; + + can: can@fffac000 { + compatible = "atmel,at91sam9263-can"; + reg = <0xfffac000 0x300>; + interrupts = <12 IRQ_TYPE_LEVEL_HIGH 3>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_can_rx_tx>; + clocks = <&can_clk>; + clock-names = "can_clk"; + status = "disabled"; + }; }; fb0: fb@0x00700000 {