1/*- 2 * Copyright (c) 1994-1998 Mark Brinicombe. 3 * Copyright (c) 1994 Brini. 4 * All rights reserved. 5 * 6 * This code is derived from software written for Brini by Mark Brinicombe 7 * 8 * Redistribution and use in source and binary forms, with or without --- 25 unchanged lines hidden (view full) --- 34 * 35 * from: FreeBSD: //depot/projects/arm/src/sys/arm/at91/kb920x_machdep.c, rev 45 36 */ 37 38#include "opt_ddb.h" 39#include "opt_platform.h" 40 41#include <sys/cdefs.h> |
42__FBSDID("$FreeBSD: head/sys/arm/lpc/lpc_machdep.c 260326 2014-01-05 18:40:06Z ian $"); |
43 44#define _ARM32_BUS_DMA_PRIVATE 45#include <sys/param.h> 46#include <sys/systm.h> 47#include <sys/bus.h> 48 49#include <vm/vm.h> 50#include <vm/pmap.h> 51 52#include <machine/bus.h> 53#include <machine/devmap.h> 54#include <machine/machdep.h> 55 56#include <arm/lpc/lpcreg.h> 57#include <arm/lpc/lpcvar.h> 58 59#include <dev/fdt/fdt_common.h> |
60 61vm_offset_t 62initarm_lastaddr(void) 63{ 64 |
65 return (arm_devmap_lastaddr()); |
66} 67 68void 69initarm_early_init(void) 70{ |
71} 72 73void 74initarm_gpio_init(void) 75{ 76 77 /* 78 * Set initial values of GPIO output ports 79 */ 80 platform_gpio_init(); 81} 82 83void 84initarm_late_init(void) 85{ 86} 87 |
88/* |
89 * Add a single static device mapping. 90 * The values used were taken from the ranges property of the SoC node in the 91 * dts file when this code was converted to arm_devmap_add_entry(). |
92 */ 93int 94initarm_devmap_init(void) 95{ 96 |
97 arm_devmap_add_entry(LPC_DEV_PHYS_BASE, LPC_DEV_SIZE); |
98 return (0); 99} 100 101struct arm32_dma_range * 102bus_dma_get_range(void) 103{ 104 105 return (NULL); --- 4 unchanged lines hidden (view full) --- 110{ 111 112 return (0); 113} 114 115void 116cpu_reset(void) 117{ |
118 bus_space_tag_t bst; 119 bus_space_handle_t bsh; 120 121 bst = fdtbus_bs_tag; 122 |
123 /* Enable WDT */ |
124 bus_space_map(bst, LPC_CLKPWR_PHYS_BASE, LPC_CLKPWR_SIZE, 0, &bsh); 125 bus_space_write_4(bst, bsh, LPC_CLKPWR_TIMCLK_CTRL, |
126 LPC_CLKPWR_TIMCLK_CTRL_WATCHDOG); |
127 bus_space_unmap(bst, bsh, LPC_CLKPWR_SIZE); |
128 129 /* Instant assert of RESETOUT_N with pulse length 1ms */ |
130 bus_space_map(bst, LPC_WDTIM_PHYS_BASE, LPC_WDTIM_SIZE, 0, &bsh); 131 bus_space_write_4(bst, bsh, LPC_WDTIM_PULSE, 13000); 132 bus_space_write_4(bst, bsh, LPC_WDTIM_MCTRL, 0x70); 133 bus_space_unmap(bst, bsh, LPC_WDTIM_SIZE); |
134 |
135 for (;;) 136 continue; |
137} 138 |