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wdenk945af8d2003-07-16 21:53:01 +00001/*
2 * (C) Copyright 2000-2003
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24/*
25 * CPU specific code for the MPC5xxx CPUs
26 */
27
28#include <common.h>
29#include <watchdog.h>
30#include <command.h>
Grzegorz Bernacki5c4fa9b2009-03-17 10:06:40 +010031#include <net.h>
wdenk945af8d2003-07-16 21:53:01 +000032#include <mpc5xxx.h>
Ben Warrene1d74802008-08-31 10:39:12 -070033#include <netdev.h>
Grant Likelycf2817a2007-09-06 09:46:23 -060034#include <asm/io.h>
wdenk945af8d2003-07-16 21:53:01 +000035#include <asm/processor.h>
36
Grant Likelycf2817a2007-09-06 09:46:23 -060037#if defined(CONFIG_OF_LIBFDT)
38#include <libfdt.h>
39#include <libfdt_env.h>
Kumar Galae93becf2007-11-03 19:46:28 -050040#include <fdt_support.h>
Stefan Roesee59581c2006-11-28 17:55:49 +010041#endif
42
Wolfgang Denkd87080b2006-03-31 18:32:53 +020043DECLARE_GLOBAL_DATA_PTR;
44
wdenk945af8d2003-07-16 21:53:01 +000045int checkcpu (void)
46{
wdenk945af8d2003-07-16 21:53:01 +000047 ulong clock = gd->cpu_clk;
48 char buf[32];
wdenk36c72872004-06-09 17:45:32 +000049#ifndef CONFIG_MGT5100
Rafal Jaworowskib66a9382006-03-29 13:17:09 +020050 uint svr, pvr;
wdenk36c72872004-06-09 17:45:32 +000051#endif
wdenk945af8d2003-07-16 21:53:01 +000052
53 puts ("CPU: ");
54
wdenk36c72872004-06-09 17:45:32 +000055#ifdef CONFIG_MGT5100
56 puts (CPU_ID_STR);
wdenk945af8d2003-07-16 21:53:01 +000057 printf (" (JTAG ID %08lx)", *(vu_long *)MPC5XXX_CDM_JTAGID);
wdenk36c72872004-06-09 17:45:32 +000058#else
Rafal Jaworowskib66a9382006-03-29 13:17:09 +020059 svr = get_svr();
60 pvr = get_pvr();
Grzegorz Wianeckia9d87e22007-04-29 14:01:54 +020061
62 switch (pvr) {
63 case PVR_5200:
64 printf("MPC5200");
65 break;
66 case PVR_5200B:
67 printf("MPC5200B");
wdenk36c72872004-06-09 17:45:32 +000068 break;
69 default:
Grzegorz Wianeckia9d87e22007-04-29 14:01:54 +020070 printf("Unknown MPC5xxx");
wdenk36c72872004-06-09 17:45:32 +000071 break;
72 }
73
Wolfgang Denkcf48eb92006-04-16 10:51:58 +020074 printf (" v%d.%d, Core v%d.%d", SVR_MJREV (svr), SVR_MNREV (svr),
Rafal Jaworowskib66a9382006-03-29 13:17:09 +020075 PVR_MAJ(pvr), PVR_MIN(pvr));
wdenk36c72872004-06-09 17:45:32 +000076#endif
wdenk945af8d2003-07-16 21:53:01 +000077 printf (" at %s MHz\n", strmhz (buf, clock));
wdenk945af8d2003-07-16 21:53:01 +000078 return 0;
79}
80
81/* ------------------------------------------------------------------------- */
82
83int
84do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
85{
wdenkd94f92c2003-08-28 09:41:22 +000086 ulong msr;
wdenk945af8d2003-07-16 21:53:01 +000087 /* Interrupts and MMU off */
88 __asm__ __volatile__ ("mfmsr %0":"=r" (msr):);
89
90 msr &= ~(MSR_ME | MSR_EE | MSR_IR | MSR_DR);
91 __asm__ __volatile__ ("mtmsr %0"::"r" (msr));
92
wdenkd94f92c2003-08-28 09:41:22 +000093 /* Charge the watchdog timer */
wdenk2d5b5612003-10-14 19:43:55 +000094 *(vu_long *)(MPC5XXX_GPT0_COUNTER) = 0x0001000f;
wdenkd94f92c2003-08-28 09:41:22 +000095 *(vu_long *)(MPC5XXX_GPT0_ENABLE) = 0x9004; /* wden|ce|timer_ms */
wdenk2d5b5612003-10-14 19:43:55 +000096 while(1);
wdenkd94f92c2003-08-28 09:41:22 +000097
wdenk945af8d2003-07-16 21:53:01 +000098 return 1;
99
100}
101
102/* ------------------------------------------------------------------------- */
103
104/*
105 * Get timebase clock frequency (like cpu_clk in Hz)
106 *
107 */
108unsigned long get_tbclk (void)
109{
wdenk945af8d2003-07-16 21:53:01 +0000110 ulong tbclk;
111
112 tbclk = (gd->bus_clk + 3L) / 4L;
113
114 return (tbclk);
115}
116
117/* ------------------------------------------------------------------------- */
Stefan Roesee59581c2006-11-28 17:55:49 +0100118
Marian Balakowicz75d3e8f2008-02-21 17:20:18 +0100119#if defined(CONFIG_OF_LIBFDT) && defined (CONFIG_OF_BOARD_SETUP)
Grant Likelycf2817a2007-09-06 09:46:23 -0600120void ft_cpu_setup(void *blob, bd_t *bd)
121{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200122 int div = in_8((void*)CONFIG_SYS_MBAR + 0x204) & 0x0020 ? 8 : 4;
Grant Likelycf2817a2007-09-06 09:46:23 -0600123 char * cpu_path = "/cpus/" OF_CPU;
André Schwarzc5123892008-03-13 13:50:52 +0100124#ifdef CONFIG_MPC5xxx_FEC
Grzegorz Bernacki5c4fa9b2009-03-17 10:06:40 +0100125 uchar enetaddr[6];
Grant Likelycf2817a2007-09-06 09:46:23 -0600126 char * eth_path = "/" OF_SOC "/ethernet@3000";
André Schwarzc5123892008-03-13 13:50:52 +0100127#endif
Stefan Roesee59581c2006-11-28 17:55:49 +0100128
Kumar Galae93becf2007-11-03 19:46:28 -0500129 do_fixup_by_path_u32(blob, cpu_path, "timebase-frequency", OF_TBCLK, 1);
130 do_fixup_by_path_u32(blob, cpu_path, "bus-frequency", bd->bi_busfreq, 1);
131 do_fixup_by_path_u32(blob, cpu_path, "clock-frequency", bd->bi_intfreq, 1);
132 do_fixup_by_path_u32(blob, "/" OF_SOC, "bus-frequency", bd->bi_ipbfreq, 1);
133 do_fixup_by_path_u32(blob, "/" OF_SOC, "system-frequency",
134 bd->bi_busfreq*div, 1);
André Schwarzc5123892008-03-13 13:50:52 +0100135#ifdef CONFIG_MPC5xxx_FEC
Mike Frysinger6bacfa62009-02-11 19:18:41 -0500136 eth_getenv_enetaddr("ethaddr", enetaddr);
137 do_fixup_by_path(blob, eth_path, "mac-address", enetaddr, 6, 0);
138 do_fixup_by_path(blob, eth_path, "local-mac-address", enetaddr, 6, 0);
André Schwarzc5123892008-03-13 13:50:52 +0100139#endif
Stefan Roesee59581c2006-11-28 17:55:49 +0100140}
141#endif
Axel Beierleinbef92e22008-08-16 00:30:48 +0200142
143#ifdef CONFIG_BOOTCOUNT_LIMIT
144
145void bootcount_store (ulong a)
146{
Wolfgang Denka49d10c2008-08-25 23:45:41 +0200147 volatile ulong *save_addr = (volatile ulong *) (MPC5XXX_CDM_BRDCRMB);
Axel Beierleinbef92e22008-08-16 00:30:48 +0200148
Wolfgang Denka49d10c2008-08-25 23:45:41 +0200149 *save_addr = (BOOTCOUNT_MAGIC & 0xffff0000) | a;
Axel Beierleinbef92e22008-08-16 00:30:48 +0200150}
151
152ulong bootcount_load (void)
153{
Wolfgang Denka49d10c2008-08-25 23:45:41 +0200154 volatile ulong *save_addr = (volatile ulong *) (MPC5XXX_CDM_BRDCRMB);
Axel Beierleinbef92e22008-08-16 00:30:48 +0200155
Wolfgang Denka49d10c2008-08-25 23:45:41 +0200156 if ((*save_addr & 0xffff0000) != (BOOTCOUNT_MAGIC & 0xffff0000))
157 return 0;
158 else
159 return (*save_addr & 0x0000ffff);
Axel Beierleinbef92e22008-08-16 00:30:48 +0200160}
161#endif /* CONFIG_BOOTCOUNT_LIMIT */
Ben Warrene1d74802008-08-31 10:39:12 -0700162
163#ifdef CONFIG_MPC5xxx_FEC
164/* Default initializations for FEC controllers. To override,
165 * create a board-specific function called:
166 * int board_eth_init(bd_t *bis)
167 */
168
169int cpu_eth_init(bd_t *bis)
170{
171 return mpc5xxx_fec_initialize(bis);
172}
173#endif