From 3e3c1b9922b22d362a4a9133361597ac80b974bb Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Fri, 1 Nov 2024 09:13:53 +0000 Subject: [PATCH] dts: bcm2712-rpi: Add the RP1 PIO device Declare the device that proxies RP1's PIO hardware. Signed-off-by: Phil Elwell --- arch/arm64/boot/dts/broadcom/bcm2712-rpi.dtsi | 5 +++++ arch/arm64/boot/dts/broadcom/rp1.dtsi | 12 ++++++++++++ 2 files changed, 17 insertions(+) --- a/arch/arm64/boot/dts/broadcom/bcm2712-rpi.dtsi +++ b/arch/arm64/boot/dts/broadcom/bcm2712-rpi.dtsi @@ -97,6 +97,10 @@ }; }; +pio: &rp1_pio { + status = "okay"; +}; + / { chosen: chosen { bootargs = "reboot=w coherent_pool=1M 8250.nr_uarts=1 pci=pcie_bus_safe cgroup_disable=memory numa_policy=interleave"; @@ -129,6 +133,7 @@ i2c12 = &i2c_rp1boot; mailbox = &mailbox; mmc0 = &sdio1; + pio0 = &pio; serial0 = &uart0; serial1 = &uart1; serial10 = &uart10; --- a/arch/arm64/boot/dts/broadcom/rp1.dtsi +++ b/arch/arm64/boot/dts/broadcom/rp1.dtsi @@ -1028,6 +1028,18 @@ status = "disabled"; }; + rp1_pio: pio@178000 { + reg = <0xc0 0x40178000 0x0 0x20>; + compatible = "raspberrypi,rp1-pio"; + firmware = <&rp1_firmware>; + dmas = <&rp1_dma RP1_DMA_PIO_CH0_TX>, <&rp1_dma RP1_DMA_PIO_CH0_RX>, + <&rp1_dma RP1_DMA_PIO_CH1_TX>, <&rp1_dma RP1_DMA_PIO_CH1_RX>, + <&rp1_dma RP1_DMA_PIO_CH2_TX>, <&rp1_dma RP1_DMA_PIO_CH2_RX>, + <&rp1_dma RP1_DMA_PIO_CH3_TX>, <&rp1_dma RP1_DMA_PIO_CH3_RX>; + dma-names = "tx0", "rx0", "tx1", "rx1", "tx2", "rx2", "tx3", "rx3"; + status = "disabled"; + }; + rp1_mmc0: mmc@180000 { reg = <0xc0 0x40180000 0x0 0x100>; compatible = "raspberrypi,rp1-dwcmshc";