ti_machdep.c revision 266301
1168404Spjd/*- 2168404Spjd * Copyright (c) 1994-1998 Mark Brinicombe. 3168404Spjd * Copyright (c) 1994 Brini. 4168404Spjd * All rights reserved. 5168404Spjd * 6168404Spjd * This code is derived from software written for Brini by Mark Brinicombe 7168404Spjd * 8168404Spjd * Redistribution and use in source and binary forms, with or without 9168404Spjd * modification, are permitted provided that the following conditions 10168404Spjd * are met: 11168404Spjd * 1. Redistributions of source code must retain the above copyright 12168404Spjd * notice, this list of conditions and the following disclaimer. 13168404Spjd * 2. Redistributions in binary form must reproduce the above copyright 14168404Spjd * notice, this list of conditions and the following disclaimer in the 15168404Spjd * documentation and/or other materials provided with the distribution. 16168404Spjd * 3. All advertising materials mentioning features or use of this software 17168404Spjd * must display the following acknowledgement: 18168404Spjd * This product includes software developed by Brini. 19168404Spjd * 4. The name of the company nor the name of the author may be used to 20168404Spjd * endorse or promote products derived from this software without specific 21168404Spjd * prior written permission. 22168404Spjd * 23168404Spjd * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED 24168404Spjd * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 25168404Spjd * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26168404Spjd * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 27168404Spjd * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28168404Spjd * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 29168404Spjd * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30168404Spjd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31168404Spjd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32168404Spjd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33168404Spjd * SUCH DAMAGE. 34168404Spjd * 35168404Spjd * from: FreeBSD: //depot/projects/arm/src/sys/arm/at91/kb920x_machdep.c, rev 45 36168404Spjd */ 37168404Spjd 38168404Spjd#include "opt_platform.h" 39168404Spjd 40185029Spjd#include <sys/cdefs.h> 41168404Spjd__FBSDID("$FreeBSD: head/sys/arm/ti/ti_machdep.c 266301 2014-05-17 11:27:36Z andrew $"); 42168404Spjd 43168404Spjd#define _ARM32_BUS_DMA_PRIVATE 44168404Spjd#include <sys/param.h> 45168404Spjd#include <sys/systm.h> 46168404Spjd#include <sys/bus.h> 47168404Spjd 48168404Spjd#include <vm/vm.h> 49168404Spjd#include <vm/pmap.h> 50168404Spjd 51168404Spjd#include <machine/bus.h> 52168404Spjd#include <machine/devmap.h> 53168404Spjd#include <machine/machdep.h> 54168404Spjd#include <machine/platform.h> 55168404Spjd 56185029Spjd#include <arm/ti/omap4/omap4_reg.h> 57168404Spjd 58168404Spjdvoid (*ti_cpu_reset)(void) = NULL; 59168404Spjd 60168404Spjdvm_offset_t 61168404Spjdplatform_lastaddr(void) 62168404Spjd{ 63168404Spjd 64185029Spjd return (arm_devmap_lastaddr()); 65168404Spjd} 66168404Spjd 67168404Spjdvoid 68168404Spjdplatform_probe_and_attach(void) 69168404Spjd{ 70168404Spjd} 71168404Spjd 72168404Spjdvoid 73168404Spjdplatform_gpio_init(void) 74168404Spjd{ 75168404Spjd} 76168404Spjd 77168404Spjdvoid 78168404Spjdplatform_late_init(void) 79168404Spjd{ 80185029Spjd} 81185029Spjd 82185029Spjd/* 83185029Spjd * Construct static devmap entries to map out the most frequently used 84185029Spjd * peripherals using 1mb section mappings. 85185029Spjd */ 86185029Spjdint 87185029Spjdplatform_devmap_init(void) 88185029Spjd{ 89168404Spjd#if defined(SOC_OMAP4) 90185029Spjd arm_devmap_add_entry(0x48000000, 0x01000000); /*16mb L4_PER devices */ 91185029Spjd arm_devmap_add_entry(0x4A000000, 0x01000000); /*16mb L4_CFG devices */ 92185029Spjd#elif defined(SOC_TI_AM335X) 93185029Spjd arm_devmap_add_entry(0x44C00000, 0x00400000); /* 4mb L4_WKUP devices*/ 94185029Spjd arm_devmap_add_entry(0x47400000, 0x00100000); /* 1mb USB */ 95185029Spjd arm_devmap_add_entry(0x47800000, 0x00100000); /* 1mb mmchs2 */ 96185029Spjd arm_devmap_add_entry(0x48000000, 0x01000000); /*16mb L4_PER devices */ 97185029Spjd arm_devmap_add_entry(0x49000000, 0x00100000); /* 1mb edma3 */ 98185029Spjd arm_devmap_add_entry(0x49800000, 0x00300000); /* 3mb edma3 */ 99168404Spjd arm_devmap_add_entry(0x4A000000, 0x01000000); /*16mb L4_FAST devices*/ 100168404Spjd#else 101168404Spjd#error "Unknown SoC" 102185029Spjd#endif 103185029Spjd return (0); 104185029Spjd} 105185029Spjd 106185029Spjdstruct arm32_dma_range * 107168404Spjdbus_dma_get_range(void) 108168404Spjd{ 109168404Spjd 110168404Spjd return (NULL); 111168404Spjd} 112168404Spjd 113168404Spjdint 114168404Spjdbus_dma_get_range_nb(void) 115168404Spjd{ 116168404Spjd 117168404Spjd return (0); 118168404Spjd} 119168404Spjd 120168404Spjdvoid 121168404Spjdcpu_reset() 122168404Spjd{ 123168404Spjd if (ti_cpu_reset) 124168404Spjd (*ti_cpu_reset)(); 125168404Spjd else 126185029Spjd printf("no cpu_reset implementation\n"); 127185029Spjd printf("Reset failed!\n"); 128185029Spjd while (1); 129185029Spjd} 130185029Spjd