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: releng/11.0/sys/arm/mv/discovery/discovery.c 235609 2012-05-18 14:41:14Z gber $"); 34 35#include <sys/param.h> 36#include <sys/systm.h> 37#include <sys/bus.h> 38 39#include <machine/bus.h> 40#include <machine/fdt.h> 41 42#include <arm/mv/mvreg.h> 43#include <arm/mv/mvvar.h> 44#include <arm/mv/mvwin.h> 45 46/* 47 * Virtual address space layout: 48 * ----------------------------- 49 * 0x0000_0000 - 0xBFFF_FFFF : User Process (3 GB) 50 * 0xC000_0000 - virtual_avail : Kernel Reserved (text, data, page tables, 51 * : stack etc.) 52 * virtual-avail - 0xEFFF_FFFF : KVA (virtual_avail is typically < 0xc0a0_0000) 53 * 0xF000_0000 - 0xF0FF_FFFF : No-Cache allocation area (16 MB) 54 * 0xF100_0000 - 0xF10F_FFFF : SoC Integrated devices registers range (1 MB) 55 * 0xF110_0000 - 0xF11F_FFFF : PCI-Express I/O space (1MB) 56 * 0xF120_0000 - 0xF12F_FFFF : PCI I/O space (1MB) 57 * 0xF130_0000 - 0xF52F_FFFF : PCI-Express memory space (64MB) 58 * 0xF530_0000 - 0xF92F_FFFF : PCI memory space (64MB) 59 * 0xF930_0000 - 0xF93F_FFFF : Device Bus: BOOT (1 MB) 60 * 0xF940_0000 - 0xF94F_FFFF : Device Bus: CS0 (1 MB) 61 * 0xF950_0000 - 0xFB4F_FFFF : Device Bus: CS1 (32 MB) 62 * 0xFB50_0000 - 0xFB5F_FFFF : Device Bus: CS2 (1 MB) 63 * 0xFB60_0000 - 0xFFFE_FFFF : Unused (~74MB) 64 * 0xFFFF_0000 - 0xFFFF_0FFF : 'High' vectors page (4 kB) 65 * 0xFFFF_1000 - 0xFFFF_1FFF : ARM_TP_ADDRESS/RAS page (4 kB) 66 * 0xFFFF_2000 - 0xFFFF_FFFF : Unused (56 kB) 67 */ 68 69 70struct resource_spec mv_gpio_res[] = { 71 { SYS_RES_MEMORY, 0, RF_ACTIVE }, 72 { SYS_RES_IRQ, 0, RF_ACTIVE }, 73 { SYS_RES_IRQ, 1, RF_ACTIVE }, 74 { SYS_RES_IRQ, 2, RF_ACTIVE }, 75 { SYS_RES_IRQ, 3, RF_ACTIVE }, 76 { -1, 0 } 77}; 78 79const struct decode_win idma_win_tbl[] = { 80 { 0 }, 81}; 82const struct decode_win *idma_wins = idma_win_tbl; 83int idma_wins_no = 0; 84 85const struct decode_win xor_win_tbl[] = { 86 { 0 }, 87}; 88const struct decode_win *xor_wins = xor_win_tbl; 89int xor_wins_no = 0; 90 91uint32_t 92get_tclk(void) 93{ 94 uint32_t sar; 95 96 /* 97 * On Discovery TCLK is can be configured to 166 MHz or 200 MHz. 98 * Current setting is read from Sample At Reset register. 99 */ 100 sar = bus_space_read_4(fdtbus_bs_tag, MV_MPP_BASE, SAMPLE_AT_RESET_HI); 101 sar = (sar & TCLK_MASK) >> TCLK_SHIFT; 102 103 switch (sar) { 104 case 0: 105 return (TCLK_166MHZ); 106 case 1: 107 return (TCLK_200MHZ); 108 default: 109 panic("Unknown TCLK settings!"); 110 } 111} 112