kirkwood.c revision 209131
1/*- 2 * Copyright (C) 2008 MARVELL INTERNATIONAL LTD. 3 * All rights reserved. 4 * 5 * Developed by Semihalf. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of MARVELL nor the names of contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32#include <sys/cdefs.h> 33__FBSDID("$FreeBSD: head/sys/arm/mv/kirkwood/kirkwood.c 209131 2010-06-13 13:28:53Z raj $"); 34 35#include <sys/param.h> 36#include <sys/systm.h> 37#include <sys/bus.h> 38 39#include <machine/bus.h> 40 41#include <arm/mv/mvreg.h> 42#include <arm/mv/mvvar.h> 43#include <arm/mv/mvwin.h> 44 45struct resource_spec mv_gpio_res[] = { 46 { SYS_RES_MEMORY, 0, RF_ACTIVE }, 47 { SYS_RES_IRQ, 0, RF_ACTIVE }, 48 { SYS_RES_IRQ, 1, RF_ACTIVE }, 49 { SYS_RES_IRQ, 2, RF_ACTIVE }, 50 { SYS_RES_IRQ, 3, RF_ACTIVE }, 51 { SYS_RES_IRQ, 4, RF_ACTIVE }, 52 { SYS_RES_IRQ, 5, RF_ACTIVE }, 53 { SYS_RES_IRQ, 6, RF_ACTIVE }, 54 { -1, 0 } 55}; 56 57const struct decode_win xor_win_tbl[] = { 58 { 0 }, 59}; 60const struct decode_win *xor_wins = xor_win_tbl; 61int xor_wins_no = 0; 62 63uint32_t 64get_tclk(void) 65{ 66 uint32_t dev, rev; 67 68 /* 69 * On Kirkwood TCLK is not configurable and depends on silicon 70 * revision: 71 * - A0 and A1 have TCLK hardcoded to 200 MHz. 72 * - Z0 and others have TCLK hardcoded to 166 MHz. 73 */ 74 soc_id(&dev, &rev); 75 if (dev == MV_DEV_88F6281 && (rev == 2 || rev == 3)) 76 return (TCLK_200MHZ); 77 78 return (TCLK_166MHZ); 79} 80