Bring initial support for Allwinner A20 SoC (Cubieboard2).
Add support for A20 timer. Correct interrupt offset depending from chip. Add basic code for CPU configuration module. For now, add kernel config and dts file (only FDT blob related problem needs to be solved later in order to have one kernel for both cubieboard1 and 2). Approved by: ray@
This commit is contained in:
Ganbold Tsagaankhuu
parent
71185c66dd
commit
696ec285aa
136
sys/arm/allwinner/a20/a20_cpu_cfg.c
Normal file
136
sys/arm/allwinner/a20/a20_cpu_cfg.c
Normal file
@ -0,0 +1,136 @@
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/*-
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* Copyright (c) 2013 Ganbold Tsagaankhuu <ganbold@gmail.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
|
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
|
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* CPU configuration module for Allwinner A20 */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/malloc.h>
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#include <sys/rman.h>
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#include <sys/timeet.h>
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#include <sys/timetc.h>
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#include <sys/watchdog.h>
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#include <machine/bus.h>
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#include <machine/cpu.h>
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#include <machine/frame.h>
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#include <machine/intr.h>
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#include <dev/fdt/fdt_common.h>
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#include <dev/ofw/openfirm.h>
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include <machine/bus.h>
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#include <machine/fdt.h>
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#include "a20_cpu_cfg.h"
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struct a20_cpu_cfg_softc {
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struct resource *res;
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bus_space_tag_t bst;
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bus_space_handle_t bsh;
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};
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static struct a20_cpu_cfg_softc *a20_cpu_cfg_sc = NULL;
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#define cpu_cfg_read_4(sc, reg) \
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bus_space_read_4((sc)->bst, (sc)->bsh, (reg))
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#define cpu_cfg_write_4(sc, reg, val) \
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bus_space_write_4((sc)->bst, (sc)->bsh, (reg), (val))
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static int
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a20_cpu_cfg_probe(device_t dev)
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{
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if (ofw_bus_is_compatible(dev, "allwinner,sun7i-cpu-cfg")) {
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device_set_desc(dev, "A20 CPU Configuration Module");
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return(BUS_PROBE_DEFAULT);
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}
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return (ENXIO);
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}
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static int
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a20_cpu_cfg_attach(device_t dev)
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{
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struct a20_cpu_cfg_softc *sc = device_get_softc(dev);
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int rid = 0;
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if (a20_cpu_cfg_sc)
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return (ENXIO);
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sc->res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
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if (!sc->res) {
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device_printf(dev, "could not allocate resource\n");
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return (ENXIO);
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}
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sc->bst = rman_get_bustag(sc->res);
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sc->bsh = rman_get_bushandle(sc->res);
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a20_cpu_cfg_sc = sc;
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return (0);
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}
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static device_method_t a20_cpu_cfg_methods[] = {
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DEVMETHOD(device_probe, a20_cpu_cfg_probe),
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DEVMETHOD(device_attach, a20_cpu_cfg_attach),
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{ 0, 0 }
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};
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static driver_t a20_cpu_cfg_driver = {
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"a20_cpu_cfg",
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a20_cpu_cfg_methods,
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sizeof(struct a20_cpu_cfg_softc),
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};
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static devclass_t a20_cpu_cfg_devclass;
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DRIVER_MODULE(a20_cpu_cfg, simplebus, a20_cpu_cfg_driver, a20_cpu_cfg_devclass, 0, 0);
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uint64_t
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a20_read_counter64(void)
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{
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uint32_t lo, hi;
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/* Latch counter, wait for it to be ready to read. */
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cpu_cfg_write_4(a20_cpu_cfg_sc, OSC24M_CNT64_CTRL_REG, CNT64_RL_EN);
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while (cpu_cfg_read_4(a20_cpu_cfg_sc, OSC24M_CNT64_CTRL_REG) & CNT64_RL_EN)
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continue;
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hi = cpu_cfg_read_4(a20_cpu_cfg_sc, OSC24M_CNT64_HIGH_REG);
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lo = cpu_cfg_read_4(a20_cpu_cfg_sc, OSC24M_CNT64_LOW_REG);
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return (((uint64_t)hi << 32) | lo);
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}
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67
sys/arm/allwinner/a20/a20_cpu_cfg.h
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67
sys/arm/allwinner/a20/a20_cpu_cfg.h
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@ -0,0 +1,67 @@
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/*-
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* Copyright (c) 2013 Ganbold Tsagaankhuu <ganbold@gmail.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _A20_CPU_CFG_H_
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#define _A20_CPU_CFG_H_
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#define CPU_CFG_BASE 0xe1c25c00
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#define CPU0_RST_CTRL 0x0040
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#define CPU0_CTRL_REG 0x0044
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#define CPU0_STATUS_REG 0x0048
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#define CPU1_RST_CTRL 0x0080
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#define CPU1_CTRL_REG 0x0084
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#define CPU1_STATUS_REG 0x0088
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#define GENER_CTRL_REG 0x0184
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#define EVENT_IN_REG 0x0190
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#define PRIVATE_REG 0x01a4
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#define IDLE_CNT0_LOW_REG 0x0200
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#define IDLE_CNT0_HIGH_REG 0x0204
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#define IDLE_CNT0_CTRL_REG 0x0208
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#define IDLE_CNT1_LOW_REG 0x0210
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#define IDLE_CNT1_HIGH_REG 0x0214
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#define IDLE_CNT1_CTRL_REG 0x0218
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#define OSC24M_CNT64_CTRL_REG 0x0280
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#define OSC24M_CNT64_LOW_REG 0x0284
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#define OSC24M_CNT64_HIGH_REG 0x0288
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#define LOSC_CNT64_CTRL_REG 0x0290
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#define LOSC_CNT64_LOW_REG 0x0294
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#define LOSC_CNT64_HIGH_REG 0x0298
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#define CNT64_RL_EN 0x02 /* read latch enable */
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uint64_t a20_read_counter64(void);
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#endif /* _A20_CPU_CFG_H_ */
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21
sys/arm/allwinner/a20/files.a20
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21
sys/arm/allwinner/a20/files.a20
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@ -0,0 +1,21 @@
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# $FreeBSD$
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kern/kern_clocksource.c standard
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arm/arm/bus_space_asm_generic.S standard
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arm/arm/bus_space_generic.c standard
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arm/arm/cpufunc_asm_armv5.S standard
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arm/arm/cpufunc_asm_arm10.S standard
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arm/arm/cpufunc_asm_arm11.S standard
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arm/arm/cpufunc_asm_armv7.S standard
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arm/arm/irq_dispatch.S standard
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arm/arm/gic.c standard
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arm/allwinner/a20/a20_cpu_cfg.c standard
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arm/allwinner/a10_clk.c standard
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arm/allwinner/a10_gpio.c optional gpio
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arm/allwinner/a10_ehci.c optional ehci
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arm/allwinner/a10_wdog.c standard
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arm/allwinner/timer.c standard
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arm/allwinner/bus_space.c standard
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arm/allwinner/common.c standard
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arm/allwinner/a10_machdep.c standard
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26
sys/arm/allwinner/a20/std.a20
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26
sys/arm/allwinner/a20/std.a20
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# Allwinner A20 common options
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#$FreeBSD$
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cpu CPU_CORTEXA
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machine arm armv6
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makeoption ARM_LITTLE_ENDIAN
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# Physical memory starts at 0x40200000. We assume images are loaded at
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# 0x40200000, e.g. from u-boot with 'fatload mmc 0 0x40200000 kernel'
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#
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#
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options PHYSADDR=0x40000000
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makeoptions KERNPHYSADDR=0x40200000
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options KERNPHYSADDR=0x40200000
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makeoptions KERNVIRTADDR=0xc0200000
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options KERNVIRTADDR=0xc0200000
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options STARTUP_PAGETABLE_ADDR=0x48000000
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options ARM_L2_PIPT
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options IPI_IRQ_START=0
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options IPI_IRQ_END=15
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files "../allwinner/a20/files.a20"
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@ -47,10 +47,16 @@ static int
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fdt_aintc_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig,
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int *pol)
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{
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if (!fdt_is_compatible(node, "allwinner,sun4i-ic"))
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int offset;
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if (fdt_is_compatible(node, "allwinner,sun4i-ic"))
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offset = 0;
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else if (fdt_is_compatible(node, "arm,gic"))
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offset = 32;
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else
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return (ENXIO);
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*interrupt = fdt32_to_cpu(intr[0]);
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*interrupt = fdt32_to_cpu(intr[0]) + offset;
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*trig = INTR_TRIGGER_CONFORM;
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*pol = INTR_POLARITY_CONFORM;
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@ -9,6 +9,7 @@ arm/arm/cpufunc_asm_arm11.S standard
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arm/arm/cpufunc_asm_armv7.S standard
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arm/arm/irq_dispatch.S standard
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arm/allwinner/a20/a20_cpu_cfg.c standard
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arm/allwinner/a10_clk.c standard
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arm/allwinner/a10_gpio.c optional gpio
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arm/allwinner/a10_ehci.c optional ehci
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@ -52,6 +52,8 @@ __FBSDID("$FreeBSD$");
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#include <sys/kdb.h>
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#include "a20/a20_cpu_cfg.h"
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/**
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* Timer registers addr
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*
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@ -84,6 +86,7 @@ struct a10_timer_softc {
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uint32_t sc_period;
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uint32_t timer0_freq;
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struct eventtimer et;
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uint8_t sc_timer_type; /* 0 for A10, 1 for A20 */
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};
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int a10_timer_get_timerfreq(struct a10_timer_softc *);
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@ -126,6 +129,10 @@ timer_read_counter64(void)
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{
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uint32_t lo, hi;
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/* In case of A20 get appropriate counter info */
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if (a10_timer_sc->sc_timer_type)
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return (a20_read_counter64());
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/* Latch counter, wait for it to be ready to read. */
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timer_write_4(a10_timer_sc, CNT64_CTRL_REG, CNT64_RL_EN);
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while (timer_read_4(a10_timer_sc, CNT64_CTRL_REG) & CNT64_RL_EN)
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@ -140,11 +147,18 @@ timer_read_counter64(void)
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static int
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a10_timer_probe(device_t dev)
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{
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struct a10_timer_softc *sc;
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if (!ofw_bus_is_compatible(dev, "allwinner,sun4i-timer"))
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sc = device_get_softc(dev);
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if (ofw_bus_is_compatible(dev, "allwinner,sun4i-timer"))
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sc->sc_timer_type = 0;
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else if (ofw_bus_is_compatible(dev, "allwinner,sun7i-timer"))
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sc->sc_timer_type = 1;
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else
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return (ENXIO);
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device_set_desc(dev, "Allwinner A10 timer");
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device_set_desc(dev, "Allwinner A10/A20 timer");
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return (BUS_PROBE_DEFAULT);
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}
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133
sys/arm/conf/CUBIEBOARD2
Normal file
133
sys/arm/conf/CUBIEBOARD2
Normal file
@ -0,0 +1,133 @@
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# CUBIEBOARD2 -- Custom configuration for the CUBIEBOARD2 ARM development
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# platform, check out http://www.cubieboard.org
|
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#
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# For more information on this file, please read the handbook section on
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# Kernel Configuration Files:
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#
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# http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
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#
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# The handbook is also available locally in /usr/share/doc/handbook
|
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# if you've installed the doc distribution, otherwise always see the
|
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# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
|
||||
# latest information.
|
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#
|
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# An exhaustive list of options and more detailed explanations of the
|
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# device lines is also present in the ../../conf/NOTES and NOTES files.
|
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# If you are in doubt as to the purpose or necessity of a line, check first
|
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# in NOTES.
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#
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# $FreeBSD$
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ident CUBIEBOARD2
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include "../allwinner/a20/std.a20"
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makeoptions MODULES_OVERRIDE=""
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makeoptions WITHOUT_MODULES="ahc"
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options HZ=100
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options SCHED_4BSD #4BSD scheduler
|
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options INET #InterNETworking
|
||||
options INET6 #IPv6 communications protocols
|
||||
options FFS #Berkeley Fast Filesystem
|
||||
options SOFTUPDATES #Enable FFS soft updates support
|
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options UFS_ACL #Support for access control lists
|
||||
options UFS_DIRHASH #Improve performance on big directories
|
||||
options MSDOSFS #MSDOS Filesystem
|
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options CD9660 #ISO 9660 Filesystem
|
||||
options PROCFS #Process filesystem (requires PSEUDOFS)
|
||||
options PSEUDOFS #Pseudo-filesystem framework
|
||||
options COMPAT_43 #Compatible with BSD 4.3 [KEEP THIS!]
|
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options SCSI_DELAY=5000 #Delay (in ms) before probing SCSI
|
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options KTRACE #ktrace(1) support
|
||||
options SYSVSHM #SYSV-style shared memory
|
||||
options SYSVMSG #SYSV-style message queues
|
||||
options SYSVSEM #SYSV-style semaphores
|
||||
options _KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
|
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options KBD_INSTALL_CDEV # install a CDEV entry in /dev
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options PREEMPTION
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options FREEBSD_BOOT_LOADER
|
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# Debugging
|
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makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
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options BREAK_TO_DEBUGGER
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#options VERBOSE_SYSINIT #Enable verbose sysinit messages
|
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options KDB
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options DDB #Enable the kernel debugger
|
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options INVARIANTS #Enable calls of extra sanity checking
|
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options INVARIANT_SUPPORT #Extra sanity checks of internal structures, required by INVARIANTS
|
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options WITNESS #Enable checks to detect deadlocks and cycles
|
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options WITNESS_SKIPSPIN #Don't run witness on spinlocks for speed
|
||||
#options DIAGNOSTIC
|
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|
||||
# NFS support
|
||||
#options NFSCL
|
||||
#options NFSSERVER #Network Filesystem Server
|
||||
#options NFSCLIENT #Network Filesystem Client
|
||||
|
||||
# Uncomment this for NFS root
|
||||
#options NFS_ROOT #NFS usable as /, requires NFSCLIENT
|
||||
#options BOOTP_NFSROOT
|
||||
#options BOOTP_COMPAT
|
||||
#options BOOTP
|
||||
#options BOOTP_NFSV3
|
||||
#options BOOTP_WIRED_TO=cpsw0
|
||||
|
||||
# MMC/SD/SDIO card slot support
|
||||
#device mmc # mmc/sd bus
|
||||
#device mmcsd # mmc/sd flash cards
|
||||
|
||||
# Boot device is 2nd slice on MMC/SD card
|
||||
options ROOTDEVNAME=\"ufs:/dev/da0s2\"
|
||||
|
||||
# ATA controllers
|
||||
#device ahci # AHCI-compatible SATA controllers
|
||||
#device ata # Legacy ATA/SATA controllers
|
||||
#options ATA_STATIC_ID # Static device numbering
|
||||
|
||||
# Console and misc
|
||||
device uart
|
||||
device uart_ns8250
|
||||
device pty
|
||||
device snp
|
||||
device md
|
||||
device random # Entropy device
|
||||
|
||||
# I2C support
|
||||
#device iicbus
|
||||
#device iic
|
||||
|
||||
# GPIO
|
||||
device gpio
|
||||
|
||||
device scbus # SCSI bus (required for SCSI)
|
||||
device da # Direct Access (disks)
|
||||
device pass
|
||||
|
||||
# USB support
|
||||
device usb
|
||||
options USB_DEBUG
|
||||
#options USB_REQ_DEBUG
|
||||
#options USB_VERBOSE
|
||||
#device uhci
|
||||
#device ohci
|
||||
device ehci
|
||||
|
||||
device umass
|
||||
|
||||
# Ethernet
|
||||
device loop
|
||||
device ether
|
||||
device mii
|
||||
device smscphy
|
||||
#device cpsw
|
||||
device bpf
|
||||
|
||||
# USB ethernet support, requires miibus
|
||||
device miibus
|
||||
|
||||
# Flattened Device Tree
|
||||
options FDT
|
||||
options FDT_DTB_STATIC
|
||||
makeoptions FDT_DTS_FILE=cubieboard2.dts
|
||||
|
||||
141
sys/boot/fdt/dts/cubieboard2.dts
Normal file
141
sys/boot/fdt/dts/cubieboard2.dts
Normal file
@ -0,0 +1,141 @@
|
||||
/*-
|
||||
* Copyright (c) 2013 Ganbold Tsagaankhuu <ganbold@gmail.com>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
/dts-v1/;
|
||||
|
||||
/ {
|
||||
model = "Cubietech Cubieboard2";
|
||||
compatible = "cubietech,a20-cubieboard", "allwinner,sun7i-a20";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
|
||||
interrupt-parent = <&GIC>;
|
||||
|
||||
memory {
|
||||
device_type = "memory";
|
||||
reg = < 0x40000000 0x20000000 >; /* 512MB RAM */
|
||||
};
|
||||
|
||||
aliases {
|
||||
soc = &SOC;
|
||||
UART0 = &UART0;
|
||||
};
|
||||
|
||||
SOC: a20 {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
compatible = "simple-bus";
|
||||
ranges;
|
||||
bus-frequency = <0>;
|
||||
|
||||
GIC: interrupt-controller@01c81000 {
|
||||
compatible = "arm,gic";
|
||||
reg = <0x01c81000 0x1000>, /* Distributor Registers */
|
||||
<0x01c82000 0x0100>; /* CPU Interface Registers */
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <1>;
|
||||
};
|
||||
|
||||
cpu-cfg@01c20000 {
|
||||
compatible = "allwinner,sun7i-cpu-cfg";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
reg = < 0x01c25c00 0x400 >;
|
||||
};
|
||||
|
||||
ccm@01c20000 {
|
||||
compatible = "allwinner,sun4i-ccm";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
reg = < 0x01c20000 0x400 >;
|
||||
};
|
||||
|
||||
timer@01c20c00 {
|
||||
compatible = "allwinner,sun7i-timer";
|
||||
reg = <0x01c20c00 0x90>;
|
||||
interrupts = < 22 >;
|
||||
interrupt-parent = <&GIC>;
|
||||
clock-frequency = < 24000000 >;
|
||||
};
|
||||
|
||||
watchdog@01c20c90 {
|
||||
compatible = "allwinner,sun4i-wdt";
|
||||
reg = <0x01c20c90 0x10>;
|
||||
};
|
||||
|
||||
GPIO: gpio@01c20800 {
|
||||
#gpio-cells = <3>;
|
||||
compatible = "allwinner,sun4i-gpio";
|
||||
gpio-controller;
|
||||
reg =< 0x01c20800 0x400 >;
|
||||
interrupts = < 28 >;
|
||||
interrupt-parent = <&GIC>;
|
||||
};
|
||||
|
||||
usb1: usb@01c14000 {
|
||||
compatible = "allwinner,usb-ehci", "usb-ehci";
|
||||
reg = <0x01c14000 0x1000>;
|
||||
interrupts = < 39 >;
|
||||
interrupt-parent = <&GIC>;
|
||||
};
|
||||
|
||||
usb2: usb@01c1c000 {
|
||||
compatible = "allwinner,usb-ehci", "usb-ehci";
|
||||
reg = <0x01c1c000 0x1000>;
|
||||
interrupts = < 40 >;
|
||||
interrupt-parent = <&GIC>;
|
||||
};
|
||||
|
||||
sata@01c18000 {
|
||||
compatible = "allwinner,ahci";
|
||||
reg = <0x01c18000 0x1000>;
|
||||
interrupts = <56>;
|
||||
interrupt-parent = <&GIC>;
|
||||
};
|
||||
|
||||
UART0: serial@01c28000 {
|
||||
status = "okay";
|
||||
compatible = "ns16550";
|
||||
reg = <0x01c28000 0x400>;
|
||||
reg-shift = <2>;
|
||||
interrupts = <1>;
|
||||
interrupt-parent = <&GIC>;
|
||||
current-speed = <115200>;
|
||||
clock-frequency = < 24000000 >;
|
||||
busy-detect = <1>;
|
||||
broken-txfifo = <1>;
|
||||
};
|
||||
};
|
||||
|
||||
chosen {
|
||||
bootargs = "-v";
|
||||
stdin = "UART0";
|
||||
stdout = "UART0";
|
||||
};
|
||||
};
|
||||
|
||||
Loading…
Reference in New Issue
Block a user