331 lines
8.6 KiB
C
331 lines
8.6 KiB
C
/*-
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* Copyright (c) 2012 Ganbold Tsagaankhuu <ganbold@freebsd.org>
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* Copyright (c) 2015-2016 Emmanuel Vadot <manu@freebsd.org>
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* All rights reserved.
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*
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* This code is derived from software written for Brini by Mark Brinicombe
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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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* from: FreeBSD: //depot/projects/arm/src/sys/arm/ti/ti_machdep.c
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*/
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#include "opt_ddb.h"
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#include "opt_platform.h"
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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/devmap.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <machine/bus.h>
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#include <machine/machdep.h>
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#include <machine/platformvar.h>
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#include <arm/allwinner/aw_mp.h>
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#include <arm/allwinner/aw_wdog.h>
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#include <arm/allwinner/aw_machdep.h>
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#include "platform_if.h"
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static platform_attach_t a10_attach;
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static platform_attach_t a13_attach;
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static platform_attach_t a20_attach;
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static platform_attach_t a31_attach;
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static platform_attach_t a31s_attach;
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static platform_attach_t a83t_attach;
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static platform_attach_t h3_attach;
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static platform_devmap_init_t allwinner_devmap_init;
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static platform_cpu_reset_t allwinner_cpu_reset;
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static u_int soc_type;
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static u_int soc_family;
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static int
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a10_attach(platform_t plat)
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{
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soc_type = ALLWINNERSOC_A10;
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soc_family = ALLWINNERSOC_SUN4I;
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return (0);
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}
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static int
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a13_attach(platform_t plat)
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{
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soc_type = ALLWINNERSOC_A13;
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soc_family = ALLWINNERSOC_SUN5I;
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return (0);
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}
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static int
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a20_attach(platform_t plat)
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{
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soc_type = ALLWINNERSOC_A20;
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soc_family = ALLWINNERSOC_SUN7I;
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return (0);
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}
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static int
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a31_attach(platform_t plat)
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{
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soc_type = ALLWINNERSOC_A31;
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soc_family = ALLWINNERSOC_SUN6I;
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return (0);
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}
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static int
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a31s_attach(platform_t plat)
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{
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soc_type = ALLWINNERSOC_A31S;
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soc_family = ALLWINNERSOC_SUN6I;
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return (0);
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}
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static int
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a33_attach(platform_t plat)
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{
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soc_type = ALLWINNERSOC_A33;
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soc_family = ALLWINNERSOC_SUN8I;
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return (0);
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}
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static int
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a83t_attach(platform_t plat)
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{
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soc_type = ALLWINNERSOC_A83T;
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soc_family = ALLWINNERSOC_SUN8I;
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return (0);
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}
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static int
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h3_attach(platform_t plat)
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{
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soc_type = ALLWINNERSOC_H3;
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soc_family = ALLWINNERSOC_SUN8I;
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return (0);
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}
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/*
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* Set up static device mappings.
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*
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* This covers all the on-chip device with 1MB section mappings, which is good
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* for performance (uses fewer TLB entries for device access).
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*
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* XXX It also covers a block of SRAM and some GPU (mali400) stuff that maybe
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* shouldn't be device-mapped. The original code mapped a 4MB block, but
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* perhaps a 1MB block would be more appropriate.
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*/
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static int
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allwinner_devmap_init(platform_t plat)
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{
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devmap_add_entry(0x01C00000, 0x00400000); /* 4MB */
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return (0);
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}
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static void
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allwinner_cpu_reset(platform_t plat)
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{
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aw_wdog_watchdog_reset();
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printf("Reset failed!\n");
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while (1);
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}
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/*
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* To use early printf on Allwinner SoC, add to kernel config
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* options SOCDEV_PA=0x01C00000
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* options SOCDEV_VA=0x10000000
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* options EARLY_PRINTF
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* And remove the if 0
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*/
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#if 0
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#ifdef EARLY_PRINTF
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static void
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allwinner_early_putc(int c)
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{
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volatile uint32_t * UART_STAT_REG = (uint32_t *)0x1002807C;
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volatile uint32_t * UART_TX_REG = (uint32_t *)0x10028000;
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const uint32_t UART_TXRDY = (1 << 2);
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while ((*UART_STAT_REG & UART_TXRDY) == 0)
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continue;
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*UART_TX_REG = c;
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}
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early_putc_t *early_putc = allwinner_early_putc;
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#endif /* EARLY_PRINTF */
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#endif
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#if defined(SOC_ALLWINNER_A10)
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static platform_method_t a10_methods[] = {
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PLATFORMMETHOD(platform_attach, a10_attach),
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PLATFORMMETHOD(platform_devmap_init, allwinner_devmap_init),
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PLATFORMMETHOD(platform_cpu_reset, allwinner_cpu_reset),
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PLATFORMMETHOD_END,
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};
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FDT_PLATFORM_DEF(a10, "a10", 0, "allwinner,sun4i-a10", 200);
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#endif
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#if defined(SOC_ALLWINNER_A13)
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static platform_method_t a13_methods[] = {
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PLATFORMMETHOD(platform_attach, a13_attach),
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PLATFORMMETHOD(platform_devmap_init, allwinner_devmap_init),
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PLATFORMMETHOD(platform_cpu_reset, allwinner_cpu_reset),
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PLATFORMMETHOD_END,
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};
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FDT_PLATFORM_DEF(a13, "a13", 0, "allwinner,sun5i-a13", 200);
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#endif
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#if defined(SOC_ALLWINNER_A20)
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static platform_method_t a20_methods[] = {
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PLATFORMMETHOD(platform_attach, a20_attach),
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PLATFORMMETHOD(platform_devmap_init, allwinner_devmap_init),
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PLATFORMMETHOD(platform_cpu_reset, allwinner_cpu_reset),
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#ifdef SMP
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PLATFORMMETHOD(platform_mp_start_ap, aw_mp_start_ap),
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PLATFORMMETHOD(platform_mp_setmaxid, aw_mp_setmaxid),
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#endif
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PLATFORMMETHOD_END,
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};
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FDT_PLATFORM_DEF(a20, "a20", 0, "allwinner,sun7i-a20", 200);
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#endif
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#if defined(SOC_ALLWINNER_A31)
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static platform_method_t a31_methods[] = {
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PLATFORMMETHOD(platform_attach, a31_attach),
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PLATFORMMETHOD(platform_devmap_init, allwinner_devmap_init),
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PLATFORMMETHOD(platform_cpu_reset, allwinner_cpu_reset),
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#ifdef SMP
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PLATFORMMETHOD(platform_mp_start_ap, aw_mp_start_ap),
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PLATFORMMETHOD(platform_mp_setmaxid, aw_mp_setmaxid),
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#endif
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PLATFORMMETHOD_END,
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};
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FDT_PLATFORM_DEF(a31, "a31", 0, "allwinner,sun6i-a31", 200);
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#endif
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#if defined(SOC_ALLWINNER_A31S)
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static platform_method_t a31s_methods[] = {
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PLATFORMMETHOD(platform_attach, a31s_attach),
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PLATFORMMETHOD(platform_devmap_init, allwinner_devmap_init),
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PLATFORMMETHOD(platform_cpu_reset, allwinner_cpu_reset),
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#ifdef SMP
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PLATFORMMETHOD(platform_mp_start_ap, aw_mp_start_ap),
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PLATFORMMETHOD(platform_mp_setmaxid, aw_mp_setmaxid),
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#endif
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PLATFORMMETHOD_END,
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};
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FDT_PLATFORM_DEF(a31s, "a31s", 0, "allwinner,sun6i-a31s", 200);
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#endif
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#if defined(SOC_ALLWINNER_A33)
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static platform_method_t a33_methods[] = {
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PLATFORMMETHOD(platform_attach, a33_attach),
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PLATFORMMETHOD(platform_devmap_init, allwinner_devmap_init),
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PLATFORMMETHOD(platform_cpu_reset, allwinner_cpu_reset),
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#ifdef SMP
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PLATFORMMETHOD(platform_mp_start_ap, aw_mp_start_ap),
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PLATFORMMETHOD(platform_mp_setmaxid, aw_mp_setmaxid),
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#endif
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PLATFORMMETHOD_END,
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};
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FDT_PLATFORM_DEF(a33, "a33", 0, "allwinner,sun8i-a33", 200);
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#endif
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#if defined(SOC_ALLWINNER_A83T)
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static platform_method_t a83t_methods[] = {
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PLATFORMMETHOD(platform_attach, a83t_attach),
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PLATFORMMETHOD(platform_devmap_init, allwinner_devmap_init),
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PLATFORMMETHOD(platform_cpu_reset, allwinner_cpu_reset),
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#ifdef SMP
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PLATFORMMETHOD(platform_mp_start_ap, a83t_mp_start_ap),
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PLATFORMMETHOD(platform_mp_setmaxid, aw_mp_setmaxid),
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#endif
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PLATFORMMETHOD_END,
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};
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FDT_PLATFORM_DEF(a83t, "a83t", 0, "allwinner,sun8i-a83t", 200);
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#endif
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#if defined(SOC_ALLWINNER_H2PLUS)
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static platform_method_t h2_plus_methods[] = {
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PLATFORMMETHOD(platform_attach, h3_attach),
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PLATFORMMETHOD(platform_devmap_init, allwinner_devmap_init),
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PLATFORMMETHOD(platform_cpu_reset, allwinner_cpu_reset),
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#ifdef SMP
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PLATFORMMETHOD(platform_mp_start_ap, aw_mp_start_ap),
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PLATFORMMETHOD(platform_mp_setmaxid, aw_mp_setmaxid),
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#endif
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PLATFORMMETHOD_END,
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};
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FDT_PLATFORM_DEF(h2_plus, "h2_plus", 0, "allwinner,sun8i-h2-plus", 200);
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#endif
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#if defined(SOC_ALLWINNER_H3)
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static platform_method_t h3_methods[] = {
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PLATFORMMETHOD(platform_attach, h3_attach),
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PLATFORMMETHOD(platform_devmap_init, allwinner_devmap_init),
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PLATFORMMETHOD(platform_cpu_reset, allwinner_cpu_reset),
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#ifdef SMP
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PLATFORMMETHOD(platform_mp_start_ap, aw_mp_start_ap),
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PLATFORMMETHOD(platform_mp_setmaxid, aw_mp_setmaxid),
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#endif
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PLATFORMMETHOD_END,
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};
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FDT_PLATFORM_DEF(h3, "h3", 0, "allwinner,sun8i-h3", 200);
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#endif
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u_int
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allwinner_soc_type(void)
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{
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return (soc_type);
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}
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u_int
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allwinner_soc_family(void)
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{
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return (soc_family);
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}
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