TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * (C) Copyright 2000-2003 |
| 4 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| 5 | * |
Alison Wang | d132fe6 | 2012-03-26 21:49:06 +0000 | [diff] [blame] | 6 | * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc. |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 7 | * TsiChung Liew (Tsi-Chung.Liew@freescale.com) |
| 8 | * |
| 9 | * See file CREDITS for list of people who contributed to this |
| 10 | * project. |
| 11 | * |
| 12 | * This program is free software; you can redistribute it and/or |
| 13 | * modify it under the terms of the GNU General Public License as |
| 14 | * published by the Free Software Foundation; either version 2 of |
| 15 | * the License, or (at your option) any later version. |
| 16 | * |
| 17 | * This program is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | * GNU General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License |
| 23 | * along with this program; if not, write to the Free Software |
| 24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 25 | * MA 02111-1307 USA |
| 26 | */ |
| 27 | |
| 28 | #include <common.h> |
| 29 | #include <watchdog.h> |
| 30 | #include <command.h> |
Ben Warren | 2f2b6b6 | 2008-08-31 22:22:04 -0700 | [diff] [blame] | 31 | #include <netdev.h> |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 32 | |
| 33 | #include <asm/immap.h> |
Alison Wang | d132fe6 | 2012-03-26 21:49:06 +0000 | [diff] [blame] | 34 | #include <asm/io.h> |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 35 | |
| 36 | DECLARE_GLOBAL_DATA_PTR; |
| 37 | |
Mike Frysinger | 6d1f698 | 2010-10-20 03:41:17 -0400 | [diff] [blame] | 38 | int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 39 | { |
Alison Wang | d132fe6 | 2012-03-26 21:49:06 +0000 | [diff] [blame] | 40 | ccm_t *ccm = (ccm_t *) MMAP_CCM; |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 41 | |
Alison Wang | d132fe6 | 2012-03-26 21:49:06 +0000 | [diff] [blame] | 42 | out_8(&ccm->rcr, CCM_RCR_SOFTRST); |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 43 | /* we don't return! */ |
| 44 | return 0; |
Alison Wang | d132fe6 | 2012-03-26 21:49:06 +0000 | [diff] [blame] | 45 | } |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 46 | |
| 47 | int checkcpu(void) |
| 48 | { |
Alison Wang | d132fe6 | 2012-03-26 21:49:06 +0000 | [diff] [blame] | 49 | ccm_t *ccm = (ccm_t *) MMAP_CCM; |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 50 | u16 msk; |
| 51 | u16 id = 0; |
| 52 | u8 ver; |
| 53 | |
| 54 | puts("CPU: "); |
Alison Wang | d132fe6 | 2012-03-26 21:49:06 +0000 | [diff] [blame] | 55 | msk = (in_be16(&ccm->cir) >> 6); |
| 56 | ver = (in_be16(&ccm->cir) & 0x003f); |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 57 | switch (msk) { |
| 58 | case 0x31: |
| 59 | id = 5235; |
| 60 | break; |
| 61 | } |
| 62 | |
| 63 | if (id) { |
Wolfgang Denk | 2059104 | 2008-10-19 02:35:49 +0200 | [diff] [blame] | 64 | char buf1[32], buf2[32]; |
| 65 | |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 66 | printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk, |
| 67 | ver); |
Wolfgang Denk | 2059104 | 2008-10-19 02:35:49 +0200 | [diff] [blame] | 68 | printf(" CPU CLK %s MHz BUS CLK %s MHz\n", |
TsiChung Liew | 10e9a6e | 2008-10-22 11:55:30 +0000 | [diff] [blame] | 69 | strmhz(buf1, gd->cpu_clk), |
| 70 | strmhz(buf2, gd->bus_clk)); |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 71 | } |
| 72 | |
| 73 | return 0; |
| 74 | }; |
| 75 | |
| 76 | #if defined(CONFIG_WATCHDOG) |
| 77 | /* Called by macro WATCHDOG_RESET */ |
| 78 | void watchdog_reset(void) |
| 79 | { |
Alison Wang | d132fe6 | 2012-03-26 21:49:06 +0000 | [diff] [blame] | 80 | wdog_t *wdp = (wdog_t *) (MMAP_WDOG); |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 81 | |
Alison Wang | d132fe6 | 2012-03-26 21:49:06 +0000 | [diff] [blame] | 82 | /* Count register */ |
| 83 | out_be16(&wdp->sr, 0x5555); |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 84 | asm("nop"); |
Alison Wang | d132fe6 | 2012-03-26 21:49:06 +0000 | [diff] [blame] | 85 | out_be16(&wdp->sr, 0xaaaa); |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 86 | } |
| 87 | |
| 88 | int watchdog_disable(void) |
| 89 | { |
Alison Wang | d132fe6 | 2012-03-26 21:49:06 +0000 | [diff] [blame] | 90 | wdog_t *wdp = (wdog_t *) (MMAP_WDOG); |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 91 | |
| 92 | /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */ |
Alison Wang | d132fe6 | 2012-03-26 21:49:06 +0000 | [diff] [blame] | 93 | /* halted watchdog timer */ |
| 94 | setbits_be16(&wdp->cr, WTM_WCR_HALTED); |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 95 | |
| 96 | puts("WATCHDOG:disabled\n"); |
| 97 | return (0); |
| 98 | } |
| 99 | |
| 100 | int watchdog_init(void) |
| 101 | { |
Alison Wang | d132fe6 | 2012-03-26 21:49:06 +0000 | [diff] [blame] | 102 | wdog_t *wdp = (wdog_t *) (MMAP_WDOG); |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 103 | u32 wdog_module = 0; |
| 104 | |
| 105 | /* set timeout and enable watchdog */ |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 106 | wdog_module = ((CONFIG_SYS_CLK / CONFIG_SYS_HZ) * CONFIG_WATCHDOG_TIMEOUT); |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 107 | wdog_module |= (wdog_module / 8192); |
Alison Wang | d132fe6 | 2012-03-26 21:49:06 +0000 | [diff] [blame] | 108 | out_be16(&wdp->mr, wdog_module); |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 109 | |
Alison Wang | d132fe6 | 2012-03-26 21:49:06 +0000 | [diff] [blame] | 110 | out_be16(&wdp->cr, WTM_WCR_EN); |
TsiChungLiew | b859ef1 | 2007-08-16 19:23:50 -0500 | [diff] [blame] | 111 | puts("WATCHDOG:enabled\n"); |
| 112 | |
| 113 | return (0); |
| 114 | } |
| 115 | #endif /* CONFIG_WATCHDOG */ |
Ben Warren | 90c96db | 2008-08-26 22:16:25 -0700 | [diff] [blame] | 116 | |
| 117 | #if defined(CONFIG_MCFFEC) |
| 118 | /* Default initializations for MCFFEC controllers. To override, |
| 119 | * create a board-specific function called: |
| 120 | * int board_eth_init(bd_t *bis) |
| 121 | */ |
| 122 | |
Ben Warren | 90c96db | 2008-08-26 22:16:25 -0700 | [diff] [blame] | 123 | int cpu_eth_init(bd_t *bis) |
| 124 | { |
| 125 | return mcffec_initialize(bis); |
| 126 | } |
| 127 | #endif |