mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-22 19:09:43 +09:00
6bacfa6a8e
The environment is the canonical storage location of the mac address, so we're killing off the global data location and moving everything to querying the env directly. The cpus that get converted here: at91rm9200 mpc512x mpc5xxx mpc8260 mpc8xx ppc4xx Signed-off-by: Mike Frysinger <vapier@gentoo.org> CC: Ben Warren <biggerbadderben@gmail.com> CC: John Rigby <jrigby@freescale.com> CC: Stefan Roese <sr@denx.de>
173 lines
4.2 KiB
C
173 lines
4.2 KiB
C
/*
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* (C) Copyright 2000-2003
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* CPU specific code for the MPC5xxx CPUs
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*/
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#include <common.h>
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#include <watchdog.h>
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#include <command.h>
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#include <mpc5xxx.h>
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#include <netdev.h>
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#include <asm/io.h>
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#include <asm/processor.h>
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#if defined(CONFIG_OF_LIBFDT)
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#include <libfdt.h>
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#include <libfdt_env.h>
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#include <fdt_support.h>
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#endif
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DECLARE_GLOBAL_DATA_PTR;
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int checkcpu (void)
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{
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ulong clock = gd->cpu_clk;
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char buf[32];
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#ifndef CONFIG_MGT5100
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uint svr, pvr;
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#endif
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puts ("CPU: ");
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#ifdef CONFIG_MGT5100
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puts (CPU_ID_STR);
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printf (" (JTAG ID %08lx)", *(vu_long *)MPC5XXX_CDM_JTAGID);
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#else
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svr = get_svr();
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pvr = get_pvr();
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switch (pvr) {
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case PVR_5200:
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printf("MPC5200");
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break;
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case PVR_5200B:
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printf("MPC5200B");
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break;
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default:
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printf("Unknown MPC5xxx");
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break;
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}
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printf (" v%d.%d, Core v%d.%d", SVR_MJREV (svr), SVR_MNREV (svr),
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PVR_MAJ(pvr), PVR_MIN(pvr));
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#endif
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printf (" at %s MHz\n", strmhz (buf, clock));
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return 0;
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}
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/* ------------------------------------------------------------------------- */
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int
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do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
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{
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ulong msr;
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/* Interrupts and MMU off */
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__asm__ __volatile__ ("mfmsr %0":"=r" (msr):);
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msr &= ~(MSR_ME | MSR_EE | MSR_IR | MSR_DR);
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__asm__ __volatile__ ("mtmsr %0"::"r" (msr));
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/* Charge the watchdog timer */
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*(vu_long *)(MPC5XXX_GPT0_COUNTER) = 0x0001000f;
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*(vu_long *)(MPC5XXX_GPT0_ENABLE) = 0x9004; /* wden|ce|timer_ms */
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while(1);
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return 1;
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}
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/* ------------------------------------------------------------------------- */
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/*
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* Get timebase clock frequency (like cpu_clk in Hz)
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*
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*/
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unsigned long get_tbclk (void)
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{
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ulong tbclk;
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tbclk = (gd->bus_clk + 3L) / 4L;
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return (tbclk);
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}
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/* ------------------------------------------------------------------------- */
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#if defined(CONFIG_OF_LIBFDT) && defined (CONFIG_OF_BOARD_SETUP)
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void ft_cpu_setup(void *blob, bd_t *bd)
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{
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int div = in_8((void*)CONFIG_SYS_MBAR + 0x204) & 0x0020 ? 8 : 4;
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char * cpu_path = "/cpus/" OF_CPU;
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#ifdef CONFIG_MPC5xxx_FEC
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uchar *enetaddr[6];
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char * eth_path = "/" OF_SOC "/ethernet@3000";
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#endif
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do_fixup_by_path_u32(blob, cpu_path, "timebase-frequency", OF_TBCLK, 1);
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do_fixup_by_path_u32(blob, cpu_path, "bus-frequency", bd->bi_busfreq, 1);
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do_fixup_by_path_u32(blob, cpu_path, "clock-frequency", bd->bi_intfreq, 1);
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do_fixup_by_path_u32(blob, "/" OF_SOC, "bus-frequency", bd->bi_ipbfreq, 1);
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do_fixup_by_path_u32(blob, "/" OF_SOC, "system-frequency",
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bd->bi_busfreq*div, 1);
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#ifdef CONFIG_MPC5xxx_FEC
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eth_getenv_enetaddr("ethaddr", enetaddr);
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do_fixup_by_path(blob, eth_path, "mac-address", enetaddr, 6, 0);
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do_fixup_by_path(blob, eth_path, "local-mac-address", enetaddr, 6, 0);
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#endif
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}
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#endif
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#ifdef CONFIG_BOOTCOUNT_LIMIT
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void bootcount_store (ulong a)
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{
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volatile ulong *save_addr = (volatile ulong *) (MPC5XXX_CDM_BRDCRMB);
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*save_addr = (BOOTCOUNT_MAGIC & 0xffff0000) | a;
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}
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ulong bootcount_load (void)
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{
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volatile ulong *save_addr = (volatile ulong *) (MPC5XXX_CDM_BRDCRMB);
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if ((*save_addr & 0xffff0000) != (BOOTCOUNT_MAGIC & 0xffff0000))
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return 0;
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else
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return (*save_addr & 0x0000ffff);
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}
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#endif /* CONFIG_BOOTCOUNT_LIMIT */
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#ifdef CONFIG_MPC5xxx_FEC
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/* Default initializations for FEC controllers. To override,
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* create a board-specific function called:
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* int board_eth_init(bd_t *bis)
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*/
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int cpu_eth_init(bd_t *bis)
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{
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return mpc5xxx_fec_initialize(bis);
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}
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#endif
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