142 lines
4.0 KiB
C
142 lines
4.0 KiB
C
/*
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* (C) Copyright 2000-2006
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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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#include <debug_ll.h>
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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 <malloc.h>
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#include <mem_malloc.h>
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#include <init.h>
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#include <devices.h>
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#include <net.h>
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#include <serial.h>
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gd_t *gd;
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char *strmhz (char *buf, long hz)
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{
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long l, n;
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long m;
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n = hz / 1000000L;
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l = sprintf (buf, "%ld", n);
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m = (hz % 1000000L) / 1000L;
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if (m != 0)
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sprintf (buf + l, ".%03ld", m);
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return (buf);
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}
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/***********************************************************************/
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static void init_bd(bd_t *bd, ulong bootflag) {
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// bd->bi_memstart = CFG_SDRAM_BASE; /* start of DRAM memory */
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// bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
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#ifdef CONFIG_IP860
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// bd->bi_sramstart = SRAM_BASE; /* start of SRAM memory */
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// bd->bi_sramsize = SRAM_SIZE; /* size of SRAM memory */
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#else
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// bd->bi_sramstart = 0; /* FIXME */ /* start of SRAM memory */
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// bd->bi_sramsize = 0; /* FIXME */ /* size of SRAM memory */
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#endif
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#if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
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defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
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bd->bi_immr_base = CFG_IMMR; /* base of IMMR register */
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#endif
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bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
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WATCHDOG_RESET ();
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bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
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bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
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#if defined(CONFIG_CPM2)
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bd->bi_cpmfreq = gd->cpm_clk;
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bd->bi_brgfreq = gd->brg_clk;
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bd->bi_sccfreq = gd->scc_clk;
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bd->bi_vco = gd->vco_out;
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#endif /* CONFIG_CPM2 */
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bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
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#ifdef CFG_EXTBDINFO
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strncpy ((char *)bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
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strncpy ((char *)bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
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bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
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bd->bi_plb_busfreq = gd->bus_clk;
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#if defined(CONFIG_405GP) || defined(CONFIG_405EP) || defined(CONFIG_440EP) || defined(CONFIG_440GR)
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bd->bi_pci_busfreq = get_PCI_freq ();
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bd->bi_opbfreq = get_OPB_freq ();
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#elif defined(CONFIG_XILINX_ML300)
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bd->bi_pci_busfreq = get_PCI_freq ();
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#endif
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#endif
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}
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/************************************************************************
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*
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* This is the next part if the initialization sequence: we are now
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* running from RAM and have a "normal" C environment, i. e. global
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* data can be written, BSS has been cleared, the stack size in not
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* that critical any more, etc.
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*
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************************************************************************
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*/
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void board_init_r (ulong end_of_ram)
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{
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bd_t *bd;
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char *x;
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extern void malloc_bin_reloc (void);
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asm ("sync ; isync");
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mem_malloc_init(end_of_ram - 4096 - CFG_MALLOC_LEN, end_of_ram - 4096);
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/* get gd and bd */
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gd = malloc(sizeof(gd_t));
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memset(gd, 0x0, sizeof(gd_t));
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bd = malloc(sizeof(bd_t));
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memset(bd, 0x0, sizeof(bd_t));
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gd->bd = bd;
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/*
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* Setup trap handlers
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*/
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trap_init (0);
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/* initialize higher level parts of CPU like time base and timers */
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cpu_init_r ();
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/*
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* Enable Interrupts
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*/
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interrupt_init ();
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/* Initialization complete - start the monitor */
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start_uboot();
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}
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