1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2019 Michal Meloun <mmel@FreeBSD.org>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#include "opt_platform.h"
29
30#include <sys/cdefs.h>
31__FBSDID("$FreeBSD$");
32
33#include <sys/param.h>
34#include <sys/systm.h>
35#include <sys/bus.h>
36#include <sys/devmap.h>
37#include <sys/lock.h>
38#include <sys/reboot.h>
39
40#include <vm/vm.h>
41
42#include <machine/bus.h>
43#include <machine/fdt.h>
44#include <machine/intr.h>
45#include <machine/machdep.h>
46#include <machine/platformvar.h>
47
48#include <dev/ofw/openfirm.h>
49
50#include <arm/rockchip/rk32xx_mp.h>
51
52#include "platform_if.h"
53#define CRU_PHYSBASE		0xFF760000
54#define CRU_SIZE		0x00010000
55#define	 CRU_GLB_SRST_FST_VALUE	 0x1B0
56
57static platform_def_t rk3288w_platform;
58
59static void
60rk32xx_late_init(platform_t plat)
61{
62
63}
64
65/*
66 * Set up static device mappings.
67 */
68static int
69rk32xx_devmap_init(platform_t plat)
70{
71
72	devmap_add_entry(0xFF000000, 0x00E00000);
73	return (0);
74}
75
76static void
77rk32xx_cpu_reset(platform_t plat)
78{
79	bus_space_handle_t cru;
80
81	printf("Resetting...\n");
82	bus_space_map(fdtbus_bs_tag, CRU_PHYSBASE, CRU_SIZE, 0, &cru);
83
84	spinlock_enter();
85	dsb();
86	/* Generate 'first global software reset' */
87	bus_space_write_4(fdtbus_bs_tag, cru, CRU_GLB_SRST_FST_VALUE, 0xfdb9);
88	while(1)
89		;
90}
91
92/*
93 * Early putc routine for EARLY_PRINTF support.  To use, add to kernel config:
94 *   option SOCDEV_PA=0xFF600000
95 *   option SOCDEV_VA=0x70000000
96 *   option EARLY_PRINTF
97 */
98#if 0
99#ifdef EARLY_PRINTF
100static void
101rk32xx_early_putc(int c)
102{
103
104	volatile uint32_t * UART_STAT_REG = (uint32_t *)(0x7009007C);
105	volatile uint32_t * UART_TX_REG   = (uint32_t *)(0x70090000);
106	const uint32_t      UART_TXRDY    = (1 << 2);
107	while ((*UART_STAT_REG & UART_TXRDY) == 0)
108		continue;
109	*UART_TX_REG = c;
110}
111early_putc_t *early_putc = rk32xx_early_putc;
112#endif
113#endif
114static platform_method_t rk32xx_methods[] = {
115	PLATFORMMETHOD(platform_devmap_init,	rk32xx_devmap_init),
116	PLATFORMMETHOD(platform_late_init,	rk32xx_late_init),
117	PLATFORMMETHOD(platform_cpu_reset,	rk32xx_cpu_reset),
118
119#ifdef SMP
120	PLATFORMMETHOD(platform_mp_start_ap,	rk32xx_mp_start_ap),
121	PLATFORMMETHOD(platform_mp_setmaxid,	rk32xx_mp_setmaxid),
122#endif
123	PLATFORMMETHOD_END,
124};
125FDT_PLATFORM_DEF2(rk32xx, rk3288,  "RK3288",  0, "rockchip,rk3288",  200);
126FDT_PLATFORM_DEF2(rk32xx, rk3288w, "RK3288W", 0, "rockchip,rk3288w", 200);
127