diff options
Diffstat (limited to 'arch/arm/boot/dts/intel-ixp42x-goramo-multilink.dts')
| -rw-r--r-- | arch/arm/boot/dts/intel-ixp42x-goramo-multilink.dts | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/intel-ixp42x-goramo-multilink.dts b/arch/arm/boot/dts/intel-ixp42x-goramo-multilink.dts new file mode 100644 index 000000000..f80388b17 --- /dev/null +++ b/arch/arm/boot/dts/intel-ixp42x-goramo-multilink.dts @@ -0,0 +1,180 @@ +// SPDX-License-Identifier: ISC +/* + * Device Tree file for the Goramo MultiLink Router + * There are two variants: + * - MultiLink Basic (a box) + * - MultiLink Max (19" rack mount) + * This device tree supports MultiLink Basic. + * This machine is based on IXP425. + * This is one of the few devices supporting the IXP4xx High-Speed Serial + * (HSS) link for a V.35 WAN interface. + * The hardware originates in Poland. + */ + +/dts-v1/; + +#include "intel-ixp42x.dtsi" +#include <dt-bindings/input/input.h> + +/ { + model = "Goramo MultiLink Router"; + compatible = "goramo,multilink-router", "intel,ixp42x"; + #address-cells = <1>; + #size-cells = <1>; + + memory@0 { + /* + * 64 MB of RAM according to the manual. The MultiLink + * Max has 128 MB. + */ + device_type = "memory"; + reg = <0x00000000 0x4000000>; + }; + + chosen { + bootargs = "console=ttyS0,115200n8"; + stdout-path = "uart0:115200n8"; + }; + + aliases { + serial0 = &uart0; + serial1 = &uart1; + }; + + /* + * 74HC4094 which is used as a rudimentary GPIO expander + * FIXME: + * - Create device tree bindings for this as GPIO expander + * - Write a pure DT GPIO driver using these bindings + * - Support cascading in the style of gpio-74x164.c (cannot be reused, very different) + */ + gpio_74: gpio-74hc4094 { + compatible = "nxp,74hc4094"; + cp-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>; + d-gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>; + str-gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>; + /* oe-gpios is optional */ + gpio-controller; + #gpio-cells = <2>; + /* We are not cascaded */ + registers-number = <1>; + gpio-line-names = "CONTROL_HSS0_CLK_INT", "CONTROL_HSS1_CLK_INT", "CONTROL_HSS0_DTR_N", + "CONTROL_HSS1_DTR_N", "CONTROL_EXT", "CONTROL_AUTO_RESET", + "CONTROL_PCI_RESET_N", "CONTROL_EEPROM_WC_N"; + }; + + soc { + bus@c4000000 { + flash@0,0 { + compatible = "intel,ixp4xx-flash", "cfi-flash"; + bank-width = <2>; + /* Enable writes on the expansion bus */ + intel,ixp4xx-eb-write-enable = <1>; + /* 16 MB of Flash mapped in at CS0 */ + reg = <0 0x00000000 0x1000000>; + + partitions { + compatible = "redboot-fis"; + /* Eraseblock at 0x0fe0000 */ + fis-index-block = <0x7f>; + }; + }; + }; + + pci@c0000000 { + status = "ok"; + + /* + * The device has 4 slots (IDSEL) with one dedicated IRQ per slot. + * The slots have Ethernet, Ethernet, NEC and MPCI. + * The IDSELs are 11, 12, 13, 14. + */ + interrupt-map = + /* IDSEL 11 - Ethernet A */ + <0x5800 0 0 1 &gpio0 4 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 11 is irq 4 */ + <0x5800 0 0 2 &gpio0 4 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 11 is irq 4 */ + <0x5800 0 0 3 &gpio0 4 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 11 is irq 4 */ + <0x5800 0 0 4 &gpio0 4 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 11 is irq 4 */ + /* IDSEL 12 - Ethernet B */ + <0x6000 0 0 1 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 12 is irq 5 */ + <0x6000 0 0 2 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 12 is irq 5 */ + <0x6000 0 0 3 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 12 is irq 5 */ + <0x6000 0 0 4 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 12 is irq 5 */ + /* IDSEL 13 - MPCI */ + <0x6800 0 0 1 &gpio0 12 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 13 is irq 12 */ + <0x6800 0 0 2 &gpio0 12 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 13 is irq 12 */ + <0x6800 0 0 3 &gpio0 12 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 13 is irq 12 */ + <0x6800 0 0 4 &gpio0 12 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 13 is irq 12 */ + /* IDSEL 14 - NEC */ + <0x7000 0 0 1 &gpio0 3 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 14 is irq 3 */ + <0x7000 0 0 2 &gpio0 3 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 14 is irq 3 */ + <0x7000 0 0 3 &gpio0 3 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 14 is irq 3 */ + <0x7000 0 0 4 &gpio0 3 IRQ_TYPE_LEVEL_LOW>; /* INT D on slot 14 is irq 3 */ + }; + + /* HSS links */ + npe@c8006000 { + hss@0 { + status = "okay"; + intel,queue-chl-rxtrig = <&qmgr 12>; + intel,queue-chl-txready = <&qmgr 34>; + intel,queue-pkt-rx = <&qmgr 13>; + intel,queue-pkt-tx = <&qmgr 14>, <&qmgr 15>, <&qmgr 16>, <&qmgr 17>; + intel,queue-pkt-rxfree = <&qmgr 18>, <&qmgr 19>, <&qmgr 20>, <&qmgr 21>; + intel,queue-pkt-txdone = <&qmgr 22>; + /* The Goramo GPIO-based clock etc control */ + cts-gpios = <&gpio0 10 GPIO_ACTIVE_LOW>; + rts-gpios = <&gpio0 14 GPIO_ACTIVE_LOW>; + dcd-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>; + dtr-gpios = <&gpio_74 2 GPIO_ACTIVE_LOW>; + clk-internal-gpios = <&gpio_74 0 GPIO_ACTIVE_HIGH>; + }; + hss@1 { + status = "okay"; + intel,queue-chl-rxtrig = <&qmgr 10>; + intel,queue-chl-txready = <&qmgr 35>; + intel,queue-pkt-rx = <&qmgr 0>; + intel,queue-pkt-tx = <&qmgr 5>, <&qmgr 6>, <&qmgr 7>, <&qmgr 8>; + intel,queue-pkt-rxfree = <&qmgr 1>, <&qmgr 2>, <&qmgr 3>, <&qmgr 4>; + intel,queue-pkt-txdone = <&qmgr 9>; + /* The Goramo GPIO-based clock etc control */ + cts-gpios = <&gpio0 11 GPIO_ACTIVE_LOW>; + rts-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>; + dcd-gpios = <&gpio0 7 GPIO_ACTIVE_LOW>; + dtr-gpios = <&gpio_74 3 GPIO_ACTIVE_LOW>; + clk-internal-gpios = <&gpio_74 1 GPIO_ACTIVE_HIGH>; + }; + }; + + /* EthB */ + ethernet@c8009000 { + status = "ok"; + queue-rx = <&qmgr 3>; + queue-txready = <&qmgr 32>; + phy-mode = "rgmii"; + phy-handle = <&phy0>; + + mdio { + #address-cells = <1>; + #size-cells = <0>; + + phy0: ethernet-phy@0 { + reg = <0>; + }; + + phy1: ethernet-phy@1 { + reg = <1>; + }; + }; + }; + + /* EthC */ + ethernet@c800a000 { + status = "ok"; + queue-rx = <&qmgr 4>; + queue-txready = <&qmgr 33>; + phy-mode = "rgmii"; + phy-handle = <&phy1>; + }; + }; +}; |