/* * Copyright (C) 2013 Pantelis Antoniou * * 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/; /plugin/; / { compatible = "ti,beaglebone", "ti,beaglebone-black"; /* identification */ part-number = "BB-BONE-PRU-04"; version = "00A0"; /* state the resources this cape uses */ exclusive-use = /* the pin header uses */ // "P9.27", /* pru0: pr1_pru0_pru_r30_5 */ "P8.15", /* pru0: pr1_pru0_pru_r30_15 */ // "P8.12", /* pru0: pr1_pru0_pru_r30_14 */ // "P9.25", /* pru0: pr1_pru0_pru_r30_7 */ // "P9.41", /* pru0: pr1_pru0_pru_r30_6 */ // "P9.42", /* pru0: pr1_pru0_pru_r30_4 */ // "P9.28", /* pru0: pr1_pru0_pru_r30_3 */ // "P9.30", /* pru0: pr1_pru0_pru_r30_2 */ // "P9.29", /* pru0: pr1_pru0_pru_r30_1 */ // "P9.31", /* pru0: pr1_pru0_pru_r30_0 */ /* pru0: pr1_pru0_pru_r30_13 is on MMC0_CMD */ /* pru0: pr1_pru0_pru_r30_12 is on MMC0_CLK */ /* pru0: pr1_pru0_pru_r30_11 is on MMC0_DAT0 */ /* pru0: pr1_pru0_pru_r30_10 is on MMC0_DAT1 */ /* pru0: pr1_pru0_pru_r30_9 is on MMC0_DAT2 */ /* pru0: pr1_pru0_pru_r30_8 is on MMC0_DAT3 */ //"P8.20", /* pru1: pr1_pru1_pru_r30_13 */ //"P8.21", /* pru1: pr1_pru1_pru_r30_12 */ "P8.27", /* pru1: pr1_pru1_pru_r30_8 */ "P8.28", /* pru1: pr1_pru1_pru_r30_10 */ "P8.29", /* pru1: pr1_pru1_pru_r30_9 */ "P8.30", /* pru1: pr1_pru1_pru_r30_11 */ "P8.39", /* pru1: pr1_pru1_pru_r30_6 */ "P8.40", /* pru1: pr1_pru1_pru_r30_7 */ "P8.41", /* pru1: pr1_pru1_pru_r30_4 */ "P8.42", /* pru1: pr1_pru1_pru_r30_5 */ "P8.43", /* pru1: pr1_pru1_pru_r30_2 */ "P8.44", /* pru1: pr1_pru1_pru_r30_3 */ "P8.45", /* pru1: pr1_pru1_pru_r30_0 */ "P8.46", /* pru1: pr1_pru1_pru_r30_1 */ /* pru1: pr1_pru1_pru_r30_14 is on UART0_RXD */ /* pru1: pr1_pru1_pru_r30_15 is on UART0_TXD */ /* the hardware IP uses */ "pru0", "pru1"; fragment@0 { target = <&am33xx_pinmux>; __overlay__ { pru_gpio_pins: pinmux_pru_gpio_pins { pinctrl-single,pins = < 0x1a4 0x0f /* P9 27 GPIO3_19: mcasp0_fsr.gpio3[19] | MODE7 | OUTPUT */ >; }; pru_pru_pins: pinmux_pru_pru_pins { pinctrl-single,pins = < // 0x1a4 0x25 /* mcasp0_fsr.pr1_pru0_pru_r30_5, MODE5 | OUTPUT | PRU */ 0x03c 0x2E /* gpmc_ad13.pr1_pru0_pru_r30_15, MODE6 | INPUT | PRU */ // 0x030 0x26 /* gpmc_ad12.pr1_pru0_pru_r30_14, MODE6 | OUTPUT | PRU */ // 0x1ac 0x25 /* mcasp0_ahclkx.pr1_pru0_pru_r30_7, MODE5 | OUTPUT | PRU */ // 0x1a8 0x25 /* mcasp0_axr1.pr1_pru0_pru_r30_6, MODE5 | OUTPUT | PRU */ // 0x1a0 0x25 /* mcasp0_aclkr.pr1_pru0_pru_r30_4, MODE5 | OUTPUT | PRU */ // 0x19c 0x25 /* mcasp0_ahclkr.pr1_pru0_pru_r30_3, MODE5 | OUTPUT | PRU */ // 0x198 0x25 /* mcasp0_axr0.pr1_pru0_pru_r30_2, MODE5 | OUTPUT | PRU */ // 0x194 0x25 /* mcasp0_fsx.pr1_pru0_pru_r30_1, MODE5 | OUTPUT | PRU */ // 0x190 0x25 /* mcasp0_aclkx.pr1_pru0_pru_r30_0, MODE5 | OUTPUT | PRU */ //0x084 0x25 /* gpmc_csn2.pr1_pru1_pru_r30_13, MODE5 | OUTPUT | PRU */ //0x080 0x25 /* gpmc_csn1.pr1_pru1_pru_r30_12, MODE5 | OUTPUT | PRU */ 0x0e0 0x25 /* lcd_vsync.pr1_pru1_pru_r30_8, MODE5 | OUTPUT | PRU */ 0x0e8 0x25 /* lcd_pclk.pr1_pru1_pru_r30_10, MODE5 | OUTPUT | PRU */ 0x0e4 0x25 /* lcd_hsync.pr1_pru1_pru_r30_9, MODE5 | OUTPUT | PRU */ 0x0ec 0x25 /* lcd_ac_bias_en.pr1_pru1_pru_r30_11, MODE5 | OUTPUT | PRU */ 0x0b8 0x25 /* pr1_pru1_pru_r30_6, MODE5 | OUTPUT | PRU */ 0x0bc 0x25 /* lcd_data7.pr1_pru1_pru_r30_7, MODE5 | OUTPUT | PRU */ 0x0b0 0x25 /* lcd_data4.pr1_pru1_pru_r30_4, MODE5 | OUTPUT | PRU */ 0x0b4 0x25 /* lcd_data5.pr1_pru1_pru_r30_5, MODE5 | OUTPUT | PRU */ 0x0a8 0x25 /* pr1_pru1_pru_r31_2, MODE5 | OUTPUT | PRU */ 0x0ac 0x25 /* lcd_data3.pr1_pru1_pru_r30_3, MODE5 | OUTPUT | PRU */ 0x0a0 0x25 /* lcd_data0.pr1_pru1_pru_r30_0, MODE5 | OUTPUT | PRU */ 0x0a4 0x25 /* lcd_data1.pr1_pru1_pru_r30_1, MODE5 | OUTPUT | PRU */ >; }; }; }; fragment@2 { target = <&ocp>; __overlay__ { /* avoid stupid warning */ #address-cells = <1>; #size-cells = <1>; prurproc { compatible = "ti,pru-rproc"; pinctrl-names = "default"; pinctrl-0 = <&pru_pru_pins>; reg = <0x4a300000 0x080000>; status = "okay"; ti,hwmods = "pruss"; ti,deassert-hard-reset = "pruss", "pruss"; interrupt-parent = <&intc>; /* interrupts on the host */ interrupts = <20 21 22 23 24 25 26 27>; /* events these interrupts map to (host interrupt) */ events = <2 3 4 5 6 7 8 9>; /* PRU interrupt controller offset */ pintc = <0x20000>; /* 12K Shared Data RAM global, size, local */ pdram = <0x10000 0x03000 0x10000>; /* * SYSEVENT ids * * - PRU/ARM communication * PRU0_PRU1 17 * PRU1_PRU0 18 * PRU0_ARM 19 * PRU1_ARM 20 * ARM_PRU0 21 * ARM_PRU1 22 * * Full SYSEVENT list * * parity_err_intr_pend 0 * pru0_r31_status_cnt16 1 * pru1_r31_status_cnt16 2 * uart_urxevt_intr_req 4 * uart_utxevt_intr_req 5 * uart_uint_intr_req 6 * iep_tim_cap_cmp_pend 7 * ecap_intr_req 15 * pru_mst_intr[0-15]_intr_req 16-31 * nirq 32 (UART1) * mcasp_x_intr_pend 33 (MCASP1) * mcasp_r_intr_pend 34 (MCASP1) * ecap_intr_intr_pend 35 (ECAP1) * ecap_intr_intr_pend 36 (ECAP2) * epwm_intr_intr_pend 37 (eHRPWM2) * dcan_uerr 38 (DCAN0) * dcan_int1 39 (DCAN0) * dcan_intr 40 (DCAN0) * POINTRPEND 41 (I2C0) * ecap_intr_intr_pend 42 (ECAP0) * epwm_intr_intr_pend 43 (eHRPWM0) * SINTERRUPTN 44 (McSPI0) * eqep_intr_intr_pend 45 (eQEP0) * epwm_intr_intr_pend 46 (eHRPWM1) * c0_misc_pend 47 3PGSW (GEMAC) * c0_tx_pend 48 3PGSW (GEMAC) * c0_rx_pend 49 3PGSW (GEMAC) * c0_rx_thresh_pend 50 3PGSW (GEMAC) * nirq 51 (UART0) * nirq 52 (UART2) * gen_intr_pend 53 (ADC_TSC) * mcasp_r_intr_pend 54 (McASP0) * mcasp_x_intr_pend 55 (McASP1) * pwm_trip_zone 56 (eHRPWM0/eHRPWM1/eHRP WM2) * POINTRPEND1 57 (GPIO0) * Emulation Suspend Signal 58 (Debugss) * initiator_sinterrupt_q_n2 59 (Mbox0 - mail_u2_irq (mailbox interrupt for pru1)) * initiator_sinterrupt_q_n1 60 (Mbox0 - mail_u1_irq (mailbox interrupt for pru0)) * tptc_erint_pend_po 61 (TPTC0 (EDMA)) * tpcc_errint_pend_po 62 (TPCC (EDMA)) * tpcc_int_pend_po1 63 (TPCC (EDMA)) * * HOST interrupt ids * * PRU0 0 * PRU1 1 * EVTOUT0-7 2-9 */ /* sysevent map to intc channel */ sysevent-to-channel-map = <17 1>, /* PRU0_PRU1 -> CH1 */ <18 0>, /* PRU1_PRU0 -> CH0 */ <19 2>, /* PRU0_ARM -> CH2 */ <20 3>, /* PRU1_ARM -> CH3 */ <21 0>, /* ARM_PRU0 -> CH0 */ <22 1>, /* ARM_PRU1 -> CH1 */ <24 4>, /* VRING Host->PRU0 -> CH4 */ <25 5>, /* VRING PRU0->Host -> CH5 */ <26 6>, /* VRING Host->PRU1 -> CH6 */ <27 7>; /* VRING PRU1->Host -> CH7 */ /* channel to host interrupt map */ channel-to-host-interrupt-map = <0 0>, /* CH0 -> PRU0 */ <1 1>, /* CH1 -> PRU1 */ <2 2>, /* CH2 -> EVTOUT0 */ <3 3>, /* CH3 -> EVTOUT1 */ <4 0>, /* CH4 -> PRU0 */ <5 6>, /* CH5 -> EVTOUT4 */ <6 1>, /* CH6 -> PRU1 */ <7 7>; /* CH7 -> EVTOUT5 */ /* indices are ARM=0, PRU0=1, PRU1=2 */ target-to-sysevent-map = <0xffffffff 21 22>, /* ARM: DONTCARE, ARM_PRU0, ARM_PRU1 */ < 19 0xffffffff 17>, /* PRU0: PRU0_ARM, DONTCARE, PRU0_PRU1 */ < 20 18 0xffffffff>; /* PRU1: PRU1_ARM, PRU1_PRU0, DONTCARE */ /* both the PRUs have 200MHz frequency so period is 5ns */ clock-freq = <200000000>; /* the linux pwms we support */ pru-pwm-channels = <0 1 2 3 4 5 6 7 8 9 10 11 12 13 21>; /* first PRU controls the PWMs */ pru-pwm-controller = <0>; /* the IDs of the downcalls the firmware expects for PWMs */ /* CONFIG=0, ENABLE=1, DISABLE=2 */ pru-pwm-dc-ids = <0 1 2>; /* definition for the first PRU */ pru0 { pru-index = <0>; /* offset, size, local */ iram = <0x34000 0x02000 0x00000>; /* code ram (8K) */ /* offset, size, local, other */ dram = <0x00000 0x02000 0x00000 0x10000>; /* data ram (8K) */ pctrl = <0x22000>; pdbg = <0x22400>; firmware-elf; firmware = "rcinpru0"; /* sysevents signaling ring activity (host, pru)*/ vring-sysev = <24 25>; resource_table { resource-table; version = <1>; pru0_rproc_serial: pru0_vdev_rproc_serial { vdev-rproc-serial; /* notification IDs are totally bogus */ /* rproc will idr_alloc anyway */ notifyid = <8>; /* <- bogus */ /* da align num notifyid */ vring-0 = <0 16 8 0>; vring-1 = <0 16 8 0>; }; // pru0_rproc_rpmsg: pru0_vdev_rproc_rpmsg { // vdev-rpmsg; // // /* notification IDs are totally bogus */ // /* rproc will idr_alloc anyway */ // // notifyid = <9>; /* <- bogus */ // /* da align num notifyid */ // vring-0 = <0 16 512 0>; // vring-1 = <0 16 512 0>; // }; }; }; /* definition for the second PRU */ pru1 { pru-index = <1>; /* offset, size, local */ iram = <0x38000 0x02000 0x00000>; /* code ram (8K) */ /* offset, size, local, other */ dram = <0x02000 0x02000 0x00000 0x10000>; /* data ram (8K) */ pctrl = <0x24000>; pdbg = <0x24400>; firmware-elf; firmware = "pwmpru1"; /* NOTE: no resource table, no vrings for this one */ }; }; }; }; };