diff options
Diffstat (limited to 'lib_nios2')
| -rw-r--r-- | lib_nios2/Makefile | 49 | ||||
| -rw-r--r-- | lib_nios2/board.c | 164 | ||||
| -rw-r--r-- | lib_nios2/bootm.c | 52 | ||||
| -rw-r--r-- | lib_nios2/cache.S | 74 | ||||
| -rw-r--r-- | lib_nios2/config.mk | 30 | ||||
| -rw-r--r-- | lib_nios2/divmod.c | 101 | ||||
| -rw-r--r-- | lib_nios2/math.h | 16 | ||||
| -rw-r--r-- | lib_nios2/mult.c | 56 | ||||
| -rw-r--r-- | lib_nios2/time.c | 38 |
9 files changed, 0 insertions, 580 deletions
diff --git a/lib_nios2/Makefile b/lib_nios2/Makefile deleted file mode 100644 index b69bc38..0000000 --- a/lib_nios2/Makefile +++ /dev/null @@ -1,49 +0,0 @@ -# -# (C) Copyright 2000-2006 -# 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 -# - -include $(TOPDIR)/config.mk - -LIB = $(obj)lib$(ARCH).a - -SOBJS-y += cache.o - -COBJS-y += board.o -COBJS-y += bootm.o -COBJS-y += divmod.o -COBJS-y += mult.o -COBJS-y += time.o - -SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) -OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) - -$(LIB): $(obj).depend $(OBJS) - $(AR) $(ARFLAGS) $@ $(OBJS) - -######################################################################### - -# defines $(obj).depend target -include $(SRCTREE)/rules.mk - -sinclude $(obj).depend - -######################################################################### diff --git a/lib_nios2/board.c b/lib_nios2/board.c deleted file mode 100644 index 8ec66a3..0000000 --- a/lib_nios2/board.c +++ /dev/null @@ -1,164 +0,0 @@ -/* - * (C) Copyright 2003, Psyent Corporation <www.psyent.com> - * Scott McNutt <smcnutt@psyent.com> - * - * (C) Copyright 2000-2002 - * 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 - */ - -#include <common.h> -#include <stdio_dev.h> -#include <watchdog.h> -#include <malloc.h> -#include <net.h> -#ifdef CONFIG_STATUS_LED -#include <status_led.h> -#endif -#if defined(CONFIG_SYS_NIOS_EPCSBASE) -#include <nios2-epcs.h> -#endif - -DECLARE_GLOBAL_DATA_PTR; - -/* - * All attempts to come up with a "common" initialization sequence - * that works for all boards and architectures failed: some of the - * requirements are just _too_ different. To get rid of the resulting - * mess of board dependend #ifdef'ed code we now make the whole - * initialization sequence configurable to the user. - * - * The requirements for any new initalization function is simple: it - * receives a pointer to the "global data" structure as it's only - * argument, and returns an integer return code, where 0 means - * "continue" and != 0 means "fatal error, hang the system". - */ - - -typedef int (init_fnc_t) (void); - - -/************************************************************************ - * Initialization sequence * - ***********************************************************************/ - -init_fnc_t *init_sequence[] = { - -#if defined(CONFIG_BOARD_EARLY_INIT_F) - board_early_init_f, /* Call board-specific init code early.*/ -#endif -#if defined(CONFIG_SYS_NIOS_EPCSBASE) - epcs_reset, -#endif - - env_init, - serial_init, - console_init_f, - display_options, - checkcpu, - checkboard, - NULL, /* Terminate this list */ -}; - - -/***********************************************************************/ -void board_init (void) -{ - bd_t *bd; - init_fnc_t **init_fnc_ptr; - - /* Pointer is writable since we allocated a register for it. - * Nios treats CONFIG_SYS_GBL_DATA_OFFSET as an address. - */ - gd = (gd_t *)CONFIG_SYS_GBL_DATA_OFFSET; - /* compiler optimization barrier needed for GCC >= 3.4 */ - __asm__ __volatile__("": : :"memory"); - - memset( gd, 0, CONFIG_SYS_GBL_DATA_SIZE ); - - gd->bd = (bd_t *)(gd+1); /* At end of global data */ - gd->baudrate = CONFIG_BAUDRATE; - gd->cpu_clk = CONFIG_SYS_CLK_FREQ; - - bd = gd->bd; - bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; - bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE; - bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; -#if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE) - bd->bi_sramstart= CONFIG_SYS_SRAM_BASE; - bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; -#endif - bd->bi_baudrate = CONFIG_BAUDRATE; - - for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { - WATCHDOG_RESET (); - if ((*init_fnc_ptr) () != 0) { - hang (); - } - } - - WATCHDOG_RESET (); - - /* The Malloc area is immediately below the monitor copy in RAM */ - mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN); - - WATCHDOG_RESET (); - bd->bi_flashsize = flash_init(); - - WATCHDOG_RESET (); - env_relocate(); - - bd->bi_ip_addr = getenv_IPaddr ("ipaddr"); - - WATCHDOG_RESET (); - stdio_init(); - jumptable_init(); - console_init_r(); - - WATCHDOG_RESET (); - interrupt_init (); - -#if defined(CONFIG_BOARD_LATE_INIT) - board_late_init (); -#endif - -#if defined(CONFIG_CMD_NET) -#if defined(CONFIG_NET_MULTI) - puts ("Net: "); -#endif - eth_initialize (bd); -#endif - - /* main_loop */ - for (;;) { - WATCHDOG_RESET (); - main_loop (); - } -} - - -/***********************************************************************/ - -void hang (void) -{ - disable_interrupts (); - puts("### ERROR ### Please reset board ###\n"); - for (;;); -} diff --git a/lib_nios2/bootm.c b/lib_nios2/bootm.c deleted file mode 100644 index 5d25edf..0000000 --- a/lib_nios2/bootm.c +++ /dev/null @@ -1,52 +0,0 @@ -/* - * (C) Copyright 2003, Psyent Corporation <www.psyent.com> - * Scott McNutt <smcnutt@psyent.com> - * - * 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 - */ - -#include <common.h> -#include <command.h> -#include <asm/byteorder.h> -#include <asm/cache.h> - -#define NIOS_MAGIC 0x534f494e /* enable command line and initrd passing */ - -int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images) -{ - void (*kernel)(int, int, int, char *) = (void *)images->ep; - char *commandline = getenv("bootargs"); - ulong initrd_start = images->rd_start; - ulong initrd_end = images->rd_end; - - if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) - return 1; - - /* flushes data and instruction caches before calling the kernel */ - disable_interrupts(); - flush_dcache((ulong)kernel, CONFIG_SYS_DCACHE_SIZE); - flush_icache((ulong)kernel, CONFIG_SYS_ICACHE_SIZE); - - debug("bootargs=%s @ 0x%lx\n", commandline, (ulong)&commandline); - debug("initrd=0x%lx-0x%lx\n", (ulong)initrd_start, (ulong)initrd_end); - kernel(NIOS_MAGIC, initrd_start, initrd_end, commandline); - /* does not return */ - - return 1; -} diff --git a/lib_nios2/cache.S b/lib_nios2/cache.S deleted file mode 100644 index ee3b4b7..0000000 --- a/lib_nios2/cache.S +++ /dev/null @@ -1,74 +0,0 @@ -/* - * (C) Copyright 2004, Psyent Corporation <www.psyent.com> - * Scott McNutt <smcnutt@psyent.com> - * - * 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 - */ - -#include <config.h> - - .text - - .global flush_dcache - -flush_dcache: - add r5, r5, r4 - movhi r8, %hi(CONFIG_SYS_DCACHELINE_SIZE) - ori r8, r8, %lo(CONFIG_SYS_DCACHELINE_SIZE) -0: flushd 0(r4) - add r4, r4, r8 - bltu r4, r5, 0b - ret - - - .global flush_icache - -flush_icache: - add r5, r5, r4 - movhi r8, %hi(CONFIG_SYS_ICACHELINE_SIZE) - ori r8, r8, %lo(CONFIG_SYS_ICACHELINE_SIZE) -1: flushi r4 - add r4, r4, r8 - bltu r4, r5, 1b - ret - - .global flush_cache - -flush_cache: - add r5, r5, r4 - mov r9, r4 - mov r10, r5 - - movhi r8, %hi(CONFIG_SYS_DCACHELINE_SIZE) - ori r8, r8, %lo(CONFIG_SYS_DCACHELINE_SIZE) -0: flushd 0(r4) - add r4, r4, r8 - bltu r4, r5, 0b - - mov r4, r9 - mov r5, r10 - movhi r8, %hi(CONFIG_SYS_ICACHELINE_SIZE) - ori r8, r8, %lo(CONFIG_SYS_ICACHELINE_SIZE) -1: flushi r4 - add r4, r4, r8 - bltu r4, r5, 1b - - sync - flushp - ret diff --git a/lib_nios2/config.mk b/lib_nios2/config.mk deleted file mode 100644 index be40639..0000000 --- a/lib_nios2/config.mk +++ /dev/null @@ -1,30 +0,0 @@ -# -# (C) Copyright 2004 -# Psyent Corporation <www.psyent.com> -# Scott McNutt <smcnutt@psyent.com> -# -# 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 -# - -CROSS_COMPILE ?= nios2-elf- - -STANDALONE_LOAD_ADDR = 0x02000000 -L $(gcclibdir) - -PLATFORM_CPPFLAGS += -DCONFIG_NIOS2 -D__NIOS2__ -PLATFORM_CPPFLAGS += -ffixed-r15 -G0 diff --git a/lib_nios2/divmod.c b/lib_nios2/divmod.c deleted file mode 100644 index 3c7e71e..0000000 --- a/lib_nios2/divmod.c +++ /dev/null @@ -1,101 +0,0 @@ -/* - * This file is part of GNU CC. - * - * GNU CC 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, or (at your - * option) any later version. - * - * GNU CC 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 GNU CC; see the file COPYING. If not, write - * to the Free Software Foundation, 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - - -#include "math.h" - -USItype udivmodsi4 (USItype num, USItype den, word_type modwanted) -{ - USItype bit = 1; - USItype res = 0; - - while (den < num && bit && !(den & (1L << 31))) { - den <<= 1; - bit <<= 1; - } - while (bit) { - if (num >= den) { - num -= den; - res |= bit; - } - bit >>= 1; - den >>= 1; - } - if (modwanted) - return num; - return res; -} - - -SItype __divsi3 (SItype a, SItype b) -{ - word_type neg = 0; - SItype res; - - if (a < 0) { - a = -a; - neg = !neg; - } - - if (b < 0) { - b = -b; - neg = !neg; - } - - res = udivmodsi4 (a, b, 0); - - if (neg) - res = -res; - - return res; -} - - -SItype __modsi3 (SItype a, SItype b) -{ - word_type neg = 0; - SItype res; - - if (a < 0) { - a = -a; - neg = 1; - } - - if (b < 0) - b = -b; - - res = udivmodsi4 (a, b, 1); - - if (neg) - res = -res; - - return res; -} - - -SItype __udivsi3 (SItype a, SItype b) -{ - return udivmodsi4 (a, b, 0); -} - - -SItype __umodsi3 (SItype a, SItype b) -{ - return udivmodsi4 (a, b, 1); -} diff --git a/lib_nios2/math.h b/lib_nios2/math.h deleted file mode 100644 index f0aed8e..0000000 --- a/lib_nios2/math.h +++ /dev/null @@ -1,16 +0,0 @@ -#define BITS_PER_UNIT 8 - -typedef int HItype __attribute__ ((mode (HI))); -typedef unsigned int UHItype __attribute__ ((mode (HI))); - -typedef int SItype __attribute__ ((mode (SI))); -typedef unsigned int USItype __attribute__ ((mode (SI))); - -typedef int word_type __attribute__ ((mode (__word__))); - -struct SIstruct {HItype low, high;}; - -typedef union { - struct SIstruct s; - SItype ll; -} SIunion; diff --git a/lib_nios2/mult.c b/lib_nios2/mult.c deleted file mode 100644 index ec8139e..0000000 --- a/lib_nios2/mult.c +++ /dev/null @@ -1,56 +0,0 @@ -/* - * This file is part of GNU CC. - * - * GNU CC 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, or (at your - * option) any later version. - * - * GNU CC 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 GNU CC; see the file COPYING. If not, write - * to the Free Software Foundation, 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - - -#include <common.h> - -#if !defined(CONFIG_SYS_NIOS_MULT_HW) && !defined(CONFIG_SYS_NIOS_MULT_MSTEP) - -#include "math.h" - -USItype __mulsi3 (USItype a, USItype b) -{ - USItype c = 0; - - while (a != 0) { - if (a & 1) - c += b; - a >>= 1; - b <<= 1; - } - - return c; -} - - -UHItype __mulhi3 (UHItype a, UHItype b) -{ - UHItype c = 0; - - while (a != 0) { - if (a & 1) - c += b; - a >>= 1; - b <<= 1; - } - - return c; -} - -#endif /*!defined(CONFIG_SYS_NIOS_MULT_HW) && !defined(CONFIG_SYS_NIOS_MULT_MSTEP) */ diff --git a/lib_nios2/time.c b/lib_nios2/time.c deleted file mode 100644 index d5096ee..0000000 --- a/lib_nios2/time.c +++ /dev/null @@ -1,38 +0,0 @@ -/* - * (C) Copyright 2003, Psyent Corporation <www.psyent.com> - * Scott McNutt <smcnutt@psyent.com> - * - * 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 - */ - -#include <common.h> -#include <watchdog.h> - - -extern void dly_clks( unsigned long ticks ); - -void __udelay(unsigned long usec) -{ - /* The Nios core doesn't have a timebase, so we do our - * best for now and call a low-level loop that counts - * cpu clocks. - */ - unsigned long cnt = (CONFIG_SYS_CLK_FREQ/1000000) * usec; - dly_clks (cnt); -} |