2 * (C) Copyright 2000-2003
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
25 * CPU specific code for the MPC8220 CPUs
33 #include <asm/processor.h>
35 DECLARE_GLOBAL_DATA_PTR;
39 ulong clock = gd->cpu_clk;
46 printf (" (JTAG ID %08lx)", *(vu_long *) (CONFIG_SYS_MBAR + 0x50));
48 printf (" at %s MHz\n", strmhz (buf, clock));
53 /* ------------------------------------------------------------------------- */
55 int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
57 volatile gptmr8220_t *gptmr = (volatile gptmr8220_t *) MMAP_GPTMR;
60 /* Interrupts and MMU off */
61 __asm__ __volatile__ ("mfmsr %0":"=r" (msr):);
63 msr &= ~(MSR_ME | MSR_EE | MSR_IR | MSR_DR);
64 __asm__ __volatile__ ("mtmsr %0"::"r" (msr));
66 /* Charge the watchdog timer */
70 gptmr->Mode = GPT_TMS_SGPIO;
72 gptmr->Control = GPT_CTRL_WDEN | GPT_CTRL_CE;
77 /* ------------------------------------------------------------------------- */
80 * Get timebase clock frequency (like cpu_clk in Hz)
83 unsigned long get_tbclk (void)
87 tbclk = (gd->bus_clk + 3L) / 4L;
92 /* ------------------------------------------------------------------------- */
95 * Initializes on-chip ethernet controllers.
96 * to override, implement board_eth_init()
98 int cpu_eth_init(bd_t *bis)
100 #if defined(CONFIG_MPC8220_FEC)
101 mpc8220_fec_initialize(bis);