2 * Copyright (c) 1994-1998 Mark Brinicombe.
3 * Copyright (c) 1994 Brini.
6 * This code is derived from software written for Brini by Mark Brinicombe
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by Brini.
19 * 4. The name of the company nor the name of the author may be used to
20 * endorse or promote products derived from this software without specific
21 * prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * from: FreeBSD: //depot/projects/arm/src/sys/arm/at91/kb920x_machdep.c, rev 45
39 #include "opt_platform.h"
41 #include <sys/cdefs.h>
42 __FBSDID("$FreeBSD$");
44 #define _ARM32_BUS_DMA_PRIVATE
45 #include <sys/param.h>
46 #include <sys/systm.h>
52 #include <machine/bus.h>
53 #include <machine/fdt.h>
54 #include <machine/devmap.h>
55 #include <machine/machdep.h>
57 #include <arm/lpc/lpcreg.h>
58 #include <arm/lpc/lpcvar.h>
60 #include <dev/fdt/fdt_common.h>
63 initarm_lastaddr(void)
66 return (arm_devmap_lastaddr());
70 initarm_early_init(void)
75 initarm_gpio_init(void)
79 * Set initial values of GPIO output ports
85 initarm_late_init(void)
90 * Add a single static device mapping.
91 * The values used were taken from the ranges property of the SoC node in the
92 * dts file when this code was converted to arm_devmap_add_entry().
95 initarm_devmap_init(void)
98 arm_devmap_add_entry(LPC_DEV_PHYS_BASE, LPC_DEV_SIZE);
102 struct arm32_dma_range *
103 bus_dma_get_range(void)
110 bus_dma_get_range_nb(void)
120 bus_space_handle_t bsh;
125 bus_space_map(bst, LPC_CLKPWR_PHYS_BASE, LPC_CLKPWR_SIZE, 0, &bsh);
126 bus_space_write_4(bst, bsh, LPC_CLKPWR_TIMCLK_CTRL,
127 LPC_CLKPWR_TIMCLK_CTRL_WATCHDOG);
128 bus_space_unmap(bst, bsh, LPC_CLKPWR_SIZE);
130 /* Instant assert of RESETOUT_N with pulse length 1ms */
131 bus_space_map(bst, LPC_WDTIM_PHYS_BASE, LPC_WDTIM_SIZE, 0, &bsh);
132 bus_space_write_4(bst, bsh, LPC_WDTIM_PULSE, 13000);
133 bus_space_write_4(bst, bsh, LPC_WDTIM_MCTRL, 0x70);
134 bus_space_unmap(bst, bsh, LPC_WDTIM_SIZE);