upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
173 lines
4.2 KiB
173 lines
4.2 KiB
/*
|
|
* (C) Copyright 2000-2003
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
/*
|
|
* CPU specific code for the MPC5xxx CPUs
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <watchdog.h>
|
|
#include <command.h>
|
|
#include <net.h>
|
|
#include <mpc5xxx.h>
|
|
#include <netdev.h>
|
|
#include <asm/io.h>
|
|
#include <asm/processor.h>
|
|
|
|
#if defined(CONFIG_OF_LIBFDT)
|
|
#include <libfdt.h>
|
|
#include <libfdt_env.h>
|
|
#include <fdt_support.h>
|
|
#endif
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
int checkcpu (void)
|
|
{
|
|
ulong clock = gd->cpu_clk;
|
|
char buf[32];
|
|
#ifndef CONFIG_MGT5100
|
|
uint svr, pvr;
|
|
#endif
|
|
|
|
puts ("CPU: ");
|
|
|
|
#ifdef CONFIG_MGT5100
|
|
puts (CPU_ID_STR);
|
|
printf (" (JTAG ID %08lx)", *(vu_long *)MPC5XXX_CDM_JTAGID);
|
|
#else
|
|
svr = get_svr();
|
|
pvr = get_pvr();
|
|
|
|
switch (pvr) {
|
|
case PVR_5200:
|
|
printf("MPC5200");
|
|
break;
|
|
case PVR_5200B:
|
|
printf("MPC5200B");
|
|
break;
|
|
default:
|
|
printf("Unknown MPC5xxx");
|
|
break;
|
|
}
|
|
|
|
printf (" v%d.%d, Core v%d.%d", SVR_MJREV (svr), SVR_MNREV (svr),
|
|
PVR_MAJ(pvr), PVR_MIN(pvr));
|
|
#endif
|
|
printf (" at %s MHz\n", strmhz (buf, clock));
|
|
return 0;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
int
|
|
do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
|
|
{
|
|
ulong msr;
|
|
/* Interrupts and MMU off */
|
|
__asm__ __volatile__ ("mfmsr %0":"=r" (msr):);
|
|
|
|
msr &= ~(MSR_ME | MSR_EE | MSR_IR | MSR_DR);
|
|
__asm__ __volatile__ ("mtmsr %0"::"r" (msr));
|
|
|
|
/* Charge the watchdog timer */
|
|
*(vu_long *)(MPC5XXX_GPT0_COUNTER) = 0x0001000f;
|
|
*(vu_long *)(MPC5XXX_GPT0_ENABLE) = 0x9004; /* wden|ce|timer_ms */
|
|
while(1);
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
/*
|
|
* Get timebase clock frequency (like cpu_clk in Hz)
|
|
*
|
|
*/
|
|
unsigned long get_tbclk (void)
|
|
{
|
|
ulong tbclk;
|
|
|
|
tbclk = (gd->bus_clk + 3L) / 4L;
|
|
|
|
return (tbclk);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
#if defined(CONFIG_OF_LIBFDT) && defined (CONFIG_OF_BOARD_SETUP)
|
|
void ft_cpu_setup(void *blob, bd_t *bd)
|
|
{
|
|
int div = in_8((void*)CONFIG_SYS_MBAR + 0x204) & 0x0020 ? 8 : 4;
|
|
char * cpu_path = "/cpus/" OF_CPU;
|
|
#ifdef CONFIG_MPC5xxx_FEC
|
|
uchar enetaddr[6];
|
|
char * eth_path = "/" OF_SOC "/ethernet@3000";
|
|
#endif
|
|
|
|
do_fixup_by_path_u32(blob, cpu_path, "timebase-frequency", OF_TBCLK, 1);
|
|
do_fixup_by_path_u32(blob, cpu_path, "bus-frequency", bd->bi_busfreq, 1);
|
|
do_fixup_by_path_u32(blob, cpu_path, "clock-frequency", bd->bi_intfreq, 1);
|
|
do_fixup_by_path_u32(blob, "/" OF_SOC, "bus-frequency", bd->bi_ipbfreq, 1);
|
|
do_fixup_by_path_u32(blob, "/" OF_SOC, "system-frequency",
|
|
bd->bi_busfreq*div, 1);
|
|
#ifdef CONFIG_MPC5xxx_FEC
|
|
eth_getenv_enetaddr("ethaddr", enetaddr);
|
|
do_fixup_by_path(blob, eth_path, "mac-address", enetaddr, 6, 0);
|
|
do_fixup_by_path(blob, eth_path, "local-mac-address", enetaddr, 6, 0);
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_BOOTCOUNT_LIMIT
|
|
|
|
void bootcount_store (ulong a)
|
|
{
|
|
volatile ulong *save_addr = (volatile ulong *) (MPC5XXX_CDM_BRDCRMB);
|
|
|
|
*save_addr = (BOOTCOUNT_MAGIC & 0xffff0000) | a;
|
|
}
|
|
|
|
ulong bootcount_load (void)
|
|
{
|
|
volatile ulong *save_addr = (volatile ulong *) (MPC5XXX_CDM_BRDCRMB);
|
|
|
|
if ((*save_addr & 0xffff0000) != (BOOTCOUNT_MAGIC & 0xffff0000))
|
|
return 0;
|
|
else
|
|
return (*save_addr & 0x0000ffff);
|
|
}
|
|
#endif /* CONFIG_BOOTCOUNT_LIMIT */
|
|
|
|
#ifdef CONFIG_MPC5xxx_FEC
|
|
/* Default initializations for FEC controllers. To override,
|
|
* create a board-specific function called:
|
|
* int board_eth_init(bd_t *bis)
|
|
*/
|
|
|
|
int cpu_eth_init(bd_t *bis)
|
|
{
|
|
return mpc5xxx_fec_initialize(bis);
|
|
}
|
|
#endif
|
|
|