1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
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/param.h>
31 #include <sys/systm.h>
32 #include <sys/bus.h>
33 #include <sys/devmap.h>
34 #include <sys/lock.h>
35 #include <sys/reboot.h>
36
37 #include <vm/vm.h>
38
39 #include <machine/bus.h>
40 #include <machine/fdt.h>
41 #include <machine/intr.h>
42 #include <machine/machdep.h>
43 #include <machine/platformvar.h>
44
45 #include <dev/ofw/openfirm.h>
46
47 #include <arm/rockchip/rk32xx_mp.h>
48
49 #include "platform_if.h"
50 #define CRU_PHYSBASE 0xFF760000
51 #define CRU_SIZE 0x00010000
52 #define CRU_GLB_SRST_FST_VALUE 0x1B0
53
54 static platform_def_t rk3288w_platform;
55
56 static void
rk32xx_late_init(platform_t plat)57 rk32xx_late_init(platform_t plat)
58 {
59
60 }
61
62 /*
63 * Set up static device mappings.
64 */
65 static int
rk32xx_devmap_init(platform_t plat)66 rk32xx_devmap_init(platform_t plat)
67 {
68
69 devmap_add_entry(0xFF000000, 0x00E00000);
70 return (0);
71 }
72
73 static void
rk32xx_cpu_reset(platform_t plat)74 rk32xx_cpu_reset(platform_t plat)
75 {
76 bus_space_handle_t cru;
77
78 printf("Resetting...\n");
79 bus_space_map(fdtbus_bs_tag, CRU_PHYSBASE, CRU_SIZE, 0, &cru);
80
81 spinlock_enter();
82 dsb();
83 /* Generate 'first global software reset' */
84 bus_space_write_4(fdtbus_bs_tag, cru, CRU_GLB_SRST_FST_VALUE, 0xfdb9);
85 while(1)
86 ;
87 }
88
89 /*
90 * Early putc routine for EARLY_PRINTF support. To use, add to kernel config:
91 * option SOCDEV_PA=0xFF600000
92 * option SOCDEV_VA=0x70000000
93 * option EARLY_PRINTF
94 */
95 #if 0
96 #ifdef EARLY_PRINTF
97 static void
98 rk32xx_early_putc(int c)
99 {
100
101 volatile uint32_t * UART_STAT_REG = (uint32_t *)(0x7009007C);
102 volatile uint32_t * UART_TX_REG = (uint32_t *)(0x70090000);
103 const uint32_t UART_TXRDY = (1 << 2);
104 while ((*UART_STAT_REG & UART_TXRDY) == 0)
105 continue;
106 *UART_TX_REG = c;
107 }
108 early_putc_t *early_putc = rk32xx_early_putc;
109 #endif
110 #endif
111 static platform_method_t rk32xx_methods[] = {
112 PLATFORMMETHOD(platform_devmap_init, rk32xx_devmap_init),
113 PLATFORMMETHOD(platform_late_init, rk32xx_late_init),
114 PLATFORMMETHOD(platform_cpu_reset, rk32xx_cpu_reset),
115
116 #ifdef SMP
117 PLATFORMMETHOD(platform_mp_start_ap, rk32xx_mp_start_ap),
118 PLATFORMMETHOD(platform_mp_setmaxid, rk32xx_mp_setmaxid),
119 #endif
120 PLATFORMMETHOD_END,
121 };
122 FDT_PLATFORM_DEF2(rk32xx, rk3288, "RK3288", 0, "rockchip,rk3288", 200);
123 FDT_PLATFORM_DEF2(rk32xx, rk3288w, "RK3288W", 0, "rockchip,rk3288w", 200);
124