--- /dev/null
+#
+# (C) Copyright 2003-2006
+# 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 = $(obj)lib$(CPU).o
+
+START = start.o
+COBJS-y = cpu.o interrupts.o time.o cache.o
+
+SRCS := $(START:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
+OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
+START := $(addprefix $(obj),$(START))
+
+all: $(obj).depend $(START) $(LIB)
+
+$(LIB): $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
--- /dev/null
+/*
+ * Cache-handling routined for MIPS CPUs
+ *
+ * Copyright (c) 2003 Wolfgang Denk <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 <asm-offsets.h>
+#include <config.h>
+#include <asm/asm.h>
+#include <asm/regdef.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <asm/cacheops.h>
+
+#define RA t9
+
+/*
+ * 16kB is the maximum size of instruction and data caches on MIPS 4K,
+ * 64kB is on 4KE, 24K, 5K, etc. Set bigger size for convenience.
+ *
+ * Note that the above size is the maximum size of primary cache. U-Boot
+ * doesn't have L2 cache support for now.
+ */
+#define MIPS_MAX_CACHE_SIZE 0x10000
+
+#define INDEX_BASE CKSEG0
+
+ .macro cache_op op addr
+ .set push
+ .set noreorder
+ .set mips3
+ cache \op, 0(\addr)
+ .set pop
+ .endm
+
+ .macro f_fill64 dst, offset, val
+ LONG_S \val, (\offset + 0 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 1 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 2 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 3 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 4 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 5 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 6 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 7 * LONGSIZE)(\dst)
+#if LONGSIZE == 4
+ LONG_S \val, (\offset + 8 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 9 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 10 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 11 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 12 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 13 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 14 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 15 * LONGSIZE)(\dst)
+#endif
+ .endm
+
+/*
+ * mips_init_icache(uint PRId, ulong icache_size, unchar icache_linesz)
+ */
+LEAF(mips_init_icache)
+ blez a1, 9f
+ mtc0 zero, CP0_TAGLO
+ /* clear tag to invalidate */
+ PTR_LI t0, INDEX_BASE
+ PTR_ADDU t1, t0, a1
+1: cache_op INDEX_STORE_TAG_I t0
+ PTR_ADDU t0, a2
+ bne t0, t1, 1b
+ /* fill once, so data field parity is correct */
+ PTR_LI t0, INDEX_BASE
+2: cache_op FILL t0
+ PTR_ADDU t0, a2
+ bne t0, t1, 2b
+ /* invalidate again - prudent but not strictly neccessary */
+ PTR_LI t0, INDEX_BASE
+1: cache_op INDEX_STORE_TAG_I t0
+ PTR_ADDU t0, a2
+ bne t0, t1, 1b
+9: jr ra
+ END(mips_init_icache)
+
+/*
+ * mips_init_dcache(uint PRId, ulong dcache_size, unchar dcache_linesz)
+ */
+LEAF(mips_init_dcache)
+ blez a1, 9f
+ mtc0 zero, CP0_TAGLO
+ /* clear all tags */
+ PTR_LI t0, INDEX_BASE
+ PTR_ADDU t1, t0, a1
+1: cache_op INDEX_STORE_TAG_D t0
+ PTR_ADDU t0, a2
+ bne t0, t1, 1b
+ /* load from each line (in cached space) */
+ PTR_LI t0, INDEX_BASE
+2: LONG_L zero, 0(t0)
+ PTR_ADDU t0, a2
+ bne t0, t1, 2b
+ /* clear all tags */
+ PTR_LI t0, INDEX_BASE
+1: cache_op INDEX_STORE_TAG_D t0
+ PTR_ADDU t0, a2
+ bne t0, t1, 1b
+9: jr ra
+ END(mips_init_dcache)
+
+/*
+ * mips_cache_reset - low level initialisation of the primary caches
+ *
+ * This routine initialises the primary caches to ensure that they have good
+ * parity. It must be called by the ROM before any cached locations are used
+ * to prevent the possibility of data with bad parity being written to memory.
+ *
+ * To initialise the instruction cache it is essential that a source of data
+ * with good parity is available. This routine will initialise an area of
+ * memory starting at location zero to be used as a source of parity.
+ *
+ * RETURNS: N/A
+ *
+ */
+NESTED(mips_cache_reset, 0, ra)
+ move RA, ra
+ li t2, CONFIG_SYS_ICACHE_SIZE
+ li t3, CONFIG_SYS_DCACHE_SIZE
+ li t8, CONFIG_SYS_CACHELINE_SIZE
+
+ li v0, MIPS_MAX_CACHE_SIZE
+
+ /*
+ * Now clear that much memory starting from zero.
+ */
+ PTR_LI a0, CKSEG1
+ PTR_ADDU a1, a0, v0
+2: PTR_ADDIU a0, 64
+ f_fill64 a0, -64, zero
+ bne a0, a1, 2b
+
+ /*
+ * The caches are probably in an indeterminate state,
+ * so we force good parity into them by doing an
+ * invalidate, load/fill, invalidate for each line.
+ */
+
+ /*
+ * Assume bottom of RAM will generate good parity for the cache.
+ */
+
+ /*
+ * Initialize the I-cache first,
+ */
+ move a1, t2
+ move a2, t8
+ PTR_LA v1, mips_init_icache
+ jalr v1
+
+ /*
+ * then initialize D-cache.
+ */
+ move a1, t3
+ move a2, t8
+ PTR_LA v1, mips_init_dcache
+ jalr v1
+
+ jr RA
+ END(mips_cache_reset)
+
+/*
+ * dcache_status - get cache status
+ *
+ * RETURNS: 0 - cache disabled; 1 - cache enabled
+ *
+ */
+LEAF(dcache_status)
+ mfc0 t0, CP0_CONFIG
+ li t1, CONF_CM_UNCACHED
+ andi t0, t0, CONF_CM_CMASK
+ move v0, zero
+ beq t0, t1, 2f
+ li v0, 1
+2: jr ra
+ END(dcache_status)
+
+/*
+ * dcache_disable - disable cache
+ *
+ * RETURNS: N/A
+ *
+ */
+LEAF(dcache_disable)
+ mfc0 t0, CP0_CONFIG
+ li t1, -8
+ and t0, t0, t1
+ ori t0, t0, CONF_CM_UNCACHED
+ mtc0 t0, CP0_CONFIG
+ jr ra
+ END(dcache_disable)
+
+/*
+ * dcache_enable - enable cache
+ *
+ * RETURNS: N/A
+ *
+ */
+LEAF(dcache_enable)
+ mfc0 t0, CP0_CONFIG
+ ori t0, CONF_CM_CMASK
+ xori t0, CONF_CM_CMASK
+ ori t0, CONF_CM_CACHABLE_NONCOHERENT
+ mtc0 t0, CP0_CONFIG
+ jr ra
+ END(dcache_enable)
--- /dev/null
+#
+# (C) Copyright 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
+#
+
+#
+# Default optimization level for MIPS64
+#
+# Note: Toolchains with binutils prior to v2.16
+# are no longer supported by U-Boot MIPS tree!
+#
+MIPSFLAGS = -march=mips64
+
+PLATFORM_CPPFLAGS += $(MIPSFLAGS)
+PLATFORM_CPPFLAGS += -mabi=64 -DCONFIG_64BIT
+ifdef CONFIG_SYS_BIG_ENDIAN
+PLATFORM_LDFLAGS += -m elf64btsmip
+else
+PLATFORM_LDFLAGS += -m elf64ltsmip
+endif
+
+CONFIG_STANDALONE_LOAD_ADDR ?= 0xffffffff80200000 -T mips64.lds
--- /dev/null
+/*
+ * (C) Copyright 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
+ */
+
+#include <common.h>
+#include <command.h>
+#include <netdev.h>
+#include <asm/mipsregs.h>
+#include <asm/cacheops.h>
+#include <asm/reboot.h>
+
+#define cache_op(op, addr) \
+ __asm__ __volatile__( \
+ " .set push\n" \
+ " .set noreorder\n" \
+ " .set mips64\n" \
+ " cache %0, %1\n" \
+ " .set pop\n" \
+ : \
+ : "i" (op), "R" (*(unsigned char *)(addr)))
+
+void __attribute__((weak)) _machine_restart(void)
+{
+ fprintf(stderr, "*** reset failed ***\n");
+
+ while (1)
+ /* NOP */;
+}
+
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ _machine_restart();
+
+ return 0;
+}
+
+void flush_cache(ulong start_addr, ulong size)
+{
+ unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE;
+ unsigned long addr = start_addr & ~(lsize - 1);
+ unsigned long aend = (start_addr + size - 1) & ~(lsize - 1);
+
+ /* aend will be miscalculated when size is zero, so we return here */
+ if (size == 0)
+ return;
+
+ while (1) {
+ cache_op(HIT_WRITEBACK_INV_D, addr);
+ cache_op(HIT_INVALIDATE_I, addr);
+ if (addr == aend)
+ break;
+ addr += lsize;
+ }
+}
+
+void flush_dcache_range(ulong start_addr, ulong stop)
+{
+ unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE;
+ unsigned long addr = start_addr & ~(lsize - 1);
+ unsigned long aend = (stop - 1) & ~(lsize - 1);
+
+ while (1) {
+ cache_op(HIT_WRITEBACK_INV_D, addr);
+ if (addr == aend)
+ break;
+ addr += lsize;
+ }
+}
+
+void invalidate_dcache_range(ulong start_addr, ulong stop)
+{
+ unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE;
+ unsigned long addr = start_addr & ~(lsize - 1);
+ unsigned long aend = (stop - 1) & ~(lsize - 1);
+
+ while (1) {
+ cache_op(HIT_INVALIDATE_D, addr);
+ if (addr == aend)
+ break;
+ addr += lsize;
+ }
+}
+
+void write_one_tlb(int index, u32 pagemask, u32 hi, u32 low0, u32 low1)
+{
+ write_c0_entrylo0(low0);
+ write_c0_pagemask(pagemask);
+ write_c0_entrylo1(low1);
+ write_c0_entryhi(hi);
+ write_c0_index(index);
+ tlb_write_indexed();
+}
--- /dev/null
+/*
+ * (C) Copyright 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
+ */
+
+#include <common.h>
+#include <asm/mipsregs.h>
+
+void enable_interrupts(void)
+{
+}
+
+int disable_interrupts(void)
+{
+ return 0;
+}
--- /dev/null
+/*
+ * Startup Code for MIPS64 CPU-core
+ *
+ * Copyright (c) 2003 Wolfgang Denk <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 dlater 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 PARTICUdlaR 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 Pdlace, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <asm-offsets.h>
+#include <config.h>
+#include <asm/regdef.h>
+#include <asm/mipsregs.h>
+
+#ifndef CONFIG_SYS_MIPS_CACHE_MODE
+#define CONFIG_SYS_MIPS_CACHE_MODE CONF_CM_CACHABLE_NONCOHERENT
+#endif
+
+ /*
+ * For the moment disable interrupts, mark the kernel mode and
+ * set ST0_KX so that the CPU does not spit fire when using
+ * 64-bit addresses.
+ */
+ .macro setup_c0_status set clr
+ .set push
+ mfc0 t0, CP0_STATUS
+ or t0, ST0_CU0 | \set | 0x1f | \clr
+ xor t0, 0x1f | \clr
+ mtc0 t0, CP0_STATUS
+ .set noreorder
+ sll zero, 3 # ehb
+ .set pop
+ .endm
+
+ .set noreorder
+
+ .globl _start
+ .text
+_start:
+ .org 0x000
+ b reset
+ nop
+ .org 0x080
+ b romReserved
+ nop
+ .org 0x100
+ b romReserved
+ nop
+ .org 0x180
+ b romReserved
+ nop
+ .org 0x200
+ b romReserved
+ nop
+ .org 0x280
+ b romReserved
+ nop
+ .org 0x300
+ b romReserved
+ nop
+ .org 0x380
+ b romReserved
+ nop
+ .org 0x480
+ b romReserved
+ nop
+
+ /*
+ * We hope there are no more reserved vectors!
+ * 128 * 8 == 1024 == 0x400
+ * so this is address R_VEC+0x400 == 0xbfc00400
+ */
+ .org 0x500
+ .align 4
+reset:
+
+ /* Clear watch registers */
+ dmtc0 zero, CP0_WATCHLO
+ dmtc0 zero, CP0_WATCHHI
+
+ /* WP(Watch Pending), SW0/1 should be cleared */
+ mtc0 zero, CP0_CAUSE
+
+ setup_c0_status ST0_KX 0
+
+ /* Init Timer */
+ mtc0 zero, CP0_COUNT
+ mtc0 zero, CP0_COMPARE
+
+#ifndef CONFIG_SKIP_LOWLEVEL_INIT
+ /* CONFIG0 register */
+ dli t0, CONF_CM_UNCACHED
+ mtc0 t0, CP0_CONFIG
+#endif
+
+ /* Initialize $gp */
+ bal 1f
+ nop
+ .dword _gp
+1:
+ ld gp, 0(ra)
+
+#ifndef CONFIG_SKIP_LOWLEVEL_INIT
+ /* Initialize any external memory */
+ dla t9, lowlevel_init
+ jalr t9
+ nop
+
+ /* Initialize caches... */
+ dla t9, mips_cache_reset
+ jalr t9
+ nop
+
+ /* ... and enable them */
+ dli t0, CONFIG_SYS_MIPS_CACHE_MODE
+ mtc0 t0, CP0_CONFIG
+#endif
+
+ /* Set up temporary stack */
+ dli t0, CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_INIT_SP_OFFSET
+ dla sp, 0(t0)
+
+ dla t9, board_init_f
+ jr t9
+ nop
+
+/*
+ * void relocate_code (addr_sp, gd, addr_moni)
+ *
+ * This "function" does not return, instead it continues in RAM
+ * after relocating the monitor code.
+ *
+ * a0 = addr_sp
+ * a1 = gd
+ * a2 = destination address
+ */
+ .globl relocate_code
+ .ent relocate_code
+relocate_code:
+ move sp, a0 # set new stack pointer
+
+ dli t0, CONFIG_SYS_MONITOR_BASE
+ dla t3, in_ram
+ ld t2, -24(t3) # t2 <-- uboot_end_data
+ move t1, a2
+ move s2, a2 # s2 <-- destination address
+
+ /*
+ * Fix $gp:
+ *
+ * New $gp = (Old $gp - CONFIG_SYS_MONITOR_BASE) + Destination Address
+ */
+ move t8, gp
+ dsub gp, CONFIG_SYS_MONITOR_BASE
+ dadd gp, a2 # gp now adjusted
+ dsub s1, gp, t8 # s1 <-- relocation offset
+
+ /*
+ * t0 = source address
+ * t1 = target address
+ * t2 = source end address
+ */
+
+ /*
+ * Save destination address and size for dlater usage in flush_cache()
+ */
+ move s0, a1 # save gd in s0
+ move a0, t1 # a0 <-- destination addr
+ dsub a1, t2, t0 # a1 <-- size
+
+1:
+ lw t3, 0(t0)
+ sw t3, 0(t1)
+ daddu t0, 4
+ ble t0, t2, 1b
+ daddu t1, 4
+
+ /* If caches were enabled, we would have to flush them here. */
+
+ /* a0 & a1 are already set up for flush_cache(start, size) */
+ dla t9, flush_cache
+ jalr t9
+ nop
+
+ /* Jump to where we've relocated ourselves */
+ daddi t0, s2, in_ram - _start
+ jr t0
+ nop
+
+ .dword _gp
+ .dword _GLOBAL_OFFSET_TABLE_
+ .dword uboot_end_data
+ .dword uboot_end
+ .dword num_got_entries
+
+in_ram:
+ /*
+ * Now we want to update GOT.
+ *
+ * GOT[0] is reserved. GOT[1] is also reserved for the dynamic object
+ * generated by GNU ld. Skip these reserved entries from relocation.
+ */
+ ld t3, -8(t0) # t3 <-- num_got_entries
+ ld t8, -32(t0) # t8 <-- _GLOBAL_OFFSET_TABLE_
+ ld t9, -40(t0) # t9 <-- _gp
+ dsub t8, t9 # compute offset
+ dadd t8, t8, gp # t8 now holds relocated _G_O_T_
+ daddi t8, t8, 16 # skipping first two entries
+ dli t2, 2
+1:
+ ld t1, 0(t8)
+ beqz t1, 2f
+ dadd t1, s1
+ sd t1, 0(t8)
+2:
+ daddi t2, 1
+ blt t2, t3, 1b
+ daddi t8, 8
+
+ /* Clear BSS */
+ ld t1, -24(t0) # t1 <-- uboot_end_data
+ ld t2, -16(t0) # t2 <-- uboot_end
+ dadd t1, s1 # adjust pointers
+ dadd t2, s1
+
+ dsub t1, 8
+1:
+ daddi t1, 8
+ bltl t1, t2, 1b
+ sd zero, 0(t1)
+
+ move a0, s0 # a0 <-- gd
+ dla t9, board_init_r
+ jr t9
+ move a1, s2
+
+ .end relocate_code
+
+ /* Exception handlers */
+romReserved:
+ b romReserved
--- /dev/null
+/*
+ * (C) Copyright 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
+ */
+
+#include <common.h>
+#include <asm/mipsregs.h>
+
+static unsigned long timestamp;
+
+/* how many counter cycles in a jiffy */
+#define CYCLES_PER_JIFFY \
+ (CONFIG_SYS_MIPS_TIMER_FREQ + CONFIG_SYS_HZ / 2) / CONFIG_SYS_HZ
+
+/*
+ * timer without interrupts
+ */
+
+int timer_init(void)
+{
+ /* Set up the timer for the first expiration. */
+ timestamp = 0;
+ write_c0_compare(read_c0_count() + CYCLES_PER_JIFFY);
+
+ return 0;
+}
+
+ulong get_timer(ulong base)
+{
+ unsigned int count;
+ unsigned int expirelo = read_c0_compare();
+
+ /* Check to see if we have missed any timestamps. */
+ count = read_c0_count();
+ while ((count - expirelo) < 0x7fffffff) {
+ expirelo += CYCLES_PER_JIFFY;
+ timestamp++;
+ }
+ write_c0_compare(expirelo);
+
+ return timestamp - base;
+}
+
+void __udelay(unsigned long usec)
+{
+ unsigned int tmo;
+
+ tmo = read_c0_count() + (usec * (CONFIG_SYS_MIPS_TIMER_FREQ / 1000000));
+ while ((tmo - read_c0_count()) < 0x7fffffff)
+ /*NOP*/;
+}
+
+/*
+ * This function is derived from PowerPC code (read timebase as long long).
+ * On MIPS it just returns the timer value.
+ */
+unsigned long long get_ticks(void)
+{
+ return get_timer(0);
+}
+
+/*
+ * This function is derived from PowerPC code (timebase clock frequency).
+ * On MIPS it returns the number of timer ticks per second.
+ */
+ulong get_tbclk(void)
+{
+ return CONFIG_SYS_HZ;
+}
/*
OUTPUT_FORMAT("elf32-bigmips", "elf32-bigmips", "elf32-bigmips")
*/
+#if defined(CONFIG_64BIT)
+OUTPUT_FORMAT("elf64-tradbigmips", "elf64-tradbigmips", "elf64-tradlittlemips")
+#else
OUTPUT_FORMAT("elf32-tradbigmips", "elf32-tradbigmips", "elf32-tradlittlemips")
+#endif
OUTPUT_ARCH(mips)
ENTRY(_start)
SECTIONS
}
uboot_end_data = .;
+#if defined(CONFIG_64BIT)
+ num_got_entries = (__got_end - __got_start) >> 3;
+#else
num_got_entries = (__got_end - __got_start) >> 2;
+#endif
. = ALIGN(4);
.sbss : { *(.sbss*) }
microblaze-generic microblaze microblaze microblaze-generic xilinx
qemu_mips mips mips32 qemu-mips - - qemu-mips:SYS_BIG_ENDIAN
qemu_mipsel mips mips32 qemu-mips - - qemu-mips:SYS_LITTLE_ENDIAN
+qemu_mips64 mips mips64 qemu-mips - - qemu-mips64:SYS_BIG_ENDIAN
+qemu_mips64el mips mips64 qemu-mips - - qemu-mips64:SYS_LITTLE_ENDIAN
vct_platinum mips mips32 vct micronas - vct:VCT_PLATINUM
vct_platinumavc mips mips32 vct micronas - vct:VCT_PLATINUMAVC
vct_platinumavc_onenand mips mips32 vct micronas - vct:VCT_PLATINUMAVC,VCT_ONENAND
--- /dev/null
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk 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
+ */
+
+/*
+OUTPUT_FORMAT("elf32-bigmips", "elf32-bigmips", "elf32-bigmips")
+*/
+OUTPUT_FORMAT("elf64-tradbigmips", "elf64-tradbigmips", "elf64-tradlittlemips")
+OUTPUT_ARCH(mips)
+SECTIONS
+{
+ .text :
+ {
+ *(.text*)
+ }
+
+ . = ALIGN(4);
+ .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
+
+ . = ALIGN(4);
+ .data : { *(.data*) }
+
+ . = .;
+ _gp = ALIGN(16) + 0x7ff0;
+
+ .got : {
+ __got_start = .;
+ *(.got)
+ __got_end = .;
+ }
+
+ .sdata : { *(.sdata*) }
+
+ . = ALIGN(4);
+ __bss_start = .;
+ .sbss (NOLOAD) : { *(.sbss*) }
+ .bss (NOLOAD) : { *(.bss*) . = ALIGN(4); }
+
+ _end = .;
+}
--- /dev/null
+/*
+ * (C) Copyright 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
+ */
+
+/*
+ * This file contains the configuration parameters for qemu-mips64 target.
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#define CONFIG_MIPS64 /* MIPS64 CPU core */
+#define CONFIG_QEMU_MIPS
+#define CONFIG_MISC_INIT_R
+
+#define CONFIG_BOOTDELAY 10 /* autoboot after 10 seconds */
+
+#define CONFIG_BAUDRATE 115200
+
+#define CONFIG_TIMESTAMP /* Print image info with timestamp */
+#undef CONFIG_BOOTARGS
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+ "addmisc=setenv bootargs ${bootargs} " \
+ "console=ttyS0,${baudrate} " \
+ "panic=1\0" \
+ "bootfile=/tftpboot/vmlinux\0" \
+ "load=tftp ffffffff80500000 ${u-boot}\0" \
+ ""
+
+#define CONFIG_BOOTCOMMAND "bootp;bootelf"
+
+/*
+ * BOOTP options
+ */
+#define CONFIG_BOOTP_BOOTFILESIZE
+#define CONFIG_BOOTP_BOOTPATH
+#define CONFIG_BOOTP_GATEWAY
+#define CONFIG_BOOTP_HOSTNAME
+
+/*
+ * Command line configuration.
+ */
+#include <config_cmd_default.h>
+
+#define CONFIG_CMD_ELF
+#define CONFIG_CMD_FAT
+#define CONFIG_CMD_EXT2
+#undef CONFIG_CMD_LOADB
+#undef CONFIG_CMD_LOADS
+#define CONFIG_CMD_DHCP
+
+#define CONFIG_DRIVER_NE2000
+#define CONFIG_DRIVER_NE2000_BASE 0xffffffffb4000300
+
+#define CONFIG_SYS_NS16550
+#define CONFIG_SYS_NS16550_SERIAL
+#define CONFIG_SYS_NS16550_REG_SIZE 1
+#define CONFIG_SYS_NS16550_CLK 115200
+#define CONFIG_SYS_NS16550_COM1 0xffffffffb40003f8
+#define CONFIG_CONS_INDEX 1
+
+#define CONFIG_CMD_IDE
+#define CONFIG_DOS_PARTITION
+
+#define CONFIG_SYS_IDE_MAXBUS 2
+#define CONFIG_SYS_ATA_IDE0_OFFSET 0x1f0
+#define CONFIG_SYS_ATA_IDE1_OFFSET 0x170
+#define CONFIG_SYS_ATA_DATA_OFFSET 0
+#define CONFIG_SYS_ATA_REG_OFFSET 0
+#define CONFIG_SYS_ATA_BASE_ADDR 0xffffffffb4000000
+
+#define CONFIG_SYS_IDE_MAXDEVICE 4
+
+#define CONFIG_CMD_RARP
+
+/*
+ * Miscellaneous configurable options
+ */
+#define CONFIG_SYS_LONGHELP /* undef to save memory */
+
+/* Monitor Command Prompt */
+#if defined(CONFIG_SYS_LITTLE_ENDIAN)
+#define CONFIG_SYS_PROMPT "qemu-mips64el # "
+#else
+#define CONFIG_SYS_PROMPT "qemu-mips64 # "
+#endif
+
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_SYS_HUSH_PARSER
+
+/* Console I/O Buffer Size */
+#define CONFIG_SYS_CBSIZE 256
+/* Print Buffer Size */
+#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16)
+/* max number of command args */
+#define CONFIG_SYS_MAXARGS 16
+
+#define CONFIG_SYS_MALLOC_LEN 128*1024
+
+#define CONFIG_SYS_BOOTPARAMS_LEN 128*1024
+
+#define CONFIG_SYS_MHZ 132
+
+#define CONFIG_SYS_MIPS_TIMER_FREQ (CONFIG_SYS_MHZ * 1000000)
+
+#define CONFIG_SYS_HZ 1000
+
+/* Cached addr */
+#define CONFIG_SYS_SDRAM_BASE 0xffffffff80000000
+
+/* default load address */
+#define CONFIG_SYS_LOAD_ADDR 0xffffffff81000000
+
+#define CONFIG_SYS_MEMTEST_START 0xffffffff80100000
+#define CONFIG_SYS_MEMTEST_END 0xffffffff80800000
+
+/*-----------------------------------------------------------------------
+ * FLASH and environment organization
+ */
+/* The following #defines are needed to get flash environment right */
+#define CONFIG_SYS_TEXT_BASE 0xffffffffbfc00000 /* Rom version */
+#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_MONITOR_LEN (192 << 10)
+
+#define CONFIG_SYS_INIT_SP_OFFSET 0x400000
+
+/* We boot from this flash, selected with dip switch */
+#define CONFIG_SYS_FLASH_BASE 0xffffffffbfc00000
+#define CONFIG_SYS_MAX_FLASH_BANKS 1
+#define CONFIG_SYS_MAX_FLASH_SECT 128
+#define CONFIG_SYS_FLASH_CFI
+#define CONFIG_FLASH_CFI_DRIVER
+#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE
+
+#define CONFIG_ENV_IS_IN_FLASH
+#define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN)
+
+/* Address and size of Primary Environment Sector */
+#define CONFIG_ENV_SIZE 0x8000
+
+#define CONFIG_ENV_OVERWRITE 1
+
+#define MEM_SIZE 128
+
+#define CONFIG_LZMA
+
+/*-----------------------------------------------------------------------
+ * Cache Configuration
+ */
+#define CONFIG_SYS_DCACHE_SIZE 16384
+#define CONFIG_SYS_ICACHE_SIZE 16384
+#define CONFIG_SYS_CACHELINE_SIZE 32
+
+#endif /* __CONFIG_H */
projects / karo-tx-uboot.git / commitdiff