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 57 rk32xx_late_init(platform_t plat) 58 { 59 60 } 61 62 /* 63 * Set up static device mappings. 64 */ 65 static int 66 rk32xx_devmap_init(platform_t plat) 67 { 68 69 devmap_add_entry(0xFF000000, 0x00E00000); 70 return (0); 71 } 72 73 static void 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