diff options
Diffstat (limited to 'cpu/s3c44b0')
| -rw-r--r-- | cpu/s3c44b0/Makefile | 50 | ||||
| -rw-r--r-- | cpu/s3c44b0/cache.c | 90 | ||||
| -rw-r--r-- | cpu/s3c44b0/config.mk | 33 | ||||
| -rw-r--r-- | cpu/s3c44b0/cpu.c | 74 | ||||
| -rw-r--r-- | cpu/s3c44b0/start.S | 272 | ||||
| -rw-r--r-- | cpu/s3c44b0/timer.c | 136 | ||||
| -rw-r--r-- | cpu/s3c44b0/u-boot.lds | 56 |
7 files changed, 0 insertions, 711 deletions
diff --git a/cpu/s3c44b0/Makefile b/cpu/s3c44b0/Makefile deleted file mode 100644 index 6da2016..0000000 --- a/cpu/s3c44b0/Makefile +++ /dev/null @@ -1,50 +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 = $(obj)lib$(CPU).a - -START = start.o - -COBJS += cache.o -COBJS += cpu.o -COBJS += timer.o - -SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) -OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) -START := $(addprefix $(obj),$(START)) - -all: $(obj).depend $(START) $(LIB) - -$(LIB): $(OBJS) - $(AR) $(ARFLAGS) $@ $(OBJS) - -######################################################################### - -# defines $(obj).depend target -include $(SRCTREE)/rules.mk - -sinclude $(obj).depend - -######################################################################### diff --git a/cpu/s3c44b0/cache.c b/cpu/s3c44b0/cache.c deleted file mode 100644 index 66974f6..0000000 --- a/cpu/s3c44b0/cache.c +++ /dev/null @@ -1,90 +0,0 @@ -/* - * (C) Copyright 2004 - * DAVE Srl - * http://www.dave-tech.it - * http://www.wawnet.biz - * mailto:info@wawnet.biz - * - * 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/hardware.h> - -static void s3c44b0_flush_cache(void) -{ - volatile int i; - /* flush cycle */ - for(i=0x10002000;i<0x10004800;i+=16) - { - *((int *)i)=0x0; - } -} - -void icache_enable (void) -{ - ulong reg; - - s3c44b0_flush_cache(); - - /* - Init cache - Non-cacheable area (everything outside RAM) - 0x0000:0000 - 0x0C00:0000 - */ - NCACHBE0 = 0xC0000000; - NCACHBE1 = 0x00000000; - - /* - Enable chache - */ - reg = SYSCFG; - reg |= 0x00000006; /* 8kB */ - SYSCFG = reg; -} - -void icache_disable (void) -{ - ulong reg; - - reg = SYSCFG; - reg &= ~0x00000006; /* 8kB */ - SYSCFG = reg; -} - -int icache_status (void) -{ - return 0; -} - -void dcache_enable (void) -{ - icache_enable(); -} - -void dcache_disable (void) -{ - icache_disable(); -} - -int dcache_status (void) -{ - return dcache_status(); -} diff --git a/cpu/s3c44b0/config.mk b/cpu/s3c44b0/config.mk deleted file mode 100644 index 7454d72..0000000 --- a/cpu/s3c44b0/config.mk +++ /dev/null @@ -1,33 +0,0 @@ -# -# (C) Copyright 2002 -# Sysgo Real-Time Solutions, GmbH <www.elinos.com> -# Marius Groeger <mgroeger@sysgo.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 -# - -PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float - -PLATFORM_CPPFLAGS += -march=armv4 -mtune=arm7tdmi -msoft-float -# ========================================================================= -# -# Supply options according to compiler version -# -# ======================================================================== -PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) diff --git a/cpu/s3c44b0/cpu.c b/cpu/s3c44b0/cpu.c deleted file mode 100644 index bca38f8..0000000 --- a/cpu/s3c44b0/cpu.c +++ /dev/null @@ -1,74 +0,0 @@ -/* - * (C) Copyright 2004 - * DAVE Srl - * http://www.dave-tech.it - * http://www.wawnet.biz - * mailto:info@wawnet.biz - * - * 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 - */ - -/* - * S3C44B0 CPU specific code - */ - -#include <common.h> -#include <command.h> -#include <asm/hardware.h> - -int arch_cpu_init (void) -{ - icache_enable(); - - return 0; -} - -int cleanup_before_linux (void) -{ - /* - cache memory should be enabled before calling - Linux to make the kernel uncompression faster - */ - icache_enable(); - - disable_interrupts (); - - return 0; -} - -void reset_cpu (ulong addr) -{ - /* - reset the cpu using watchdog - */ - - /* Disable the watchdog.*/ - WTCON&=~(1<<5); - - /* set the timeout value to a short time... */ - WTCNT = 0x1; - - /* Enable the watchdog. */ - WTCON|=1; - WTCON|=(1<<5); - - while(1) { - /*NOP*/ - } -} diff --git a/cpu/s3c44b0/start.S b/cpu/s3c44b0/start.S deleted file mode 100644 index f5a3d3a..0000000 --- a/cpu/s3c44b0/start.S +++ /dev/null @@ -1,272 +0,0 @@ -/* - * Startup Code for S3C44B0 CPU-core - * - * (C) Copyright 2004 - * DAVE Srl - * - * http://www.dave-tech.it - * http://www.wawnet.biz - * mailto:info@wawnet.biz - * - * 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> -#include <version.h> - - -/* - * Jump vector table - */ - - -.globl _start -_start: b reset - add pc, pc, #0x0c000000 - add pc, pc, #0x0c000000 - add pc, pc, #0x0c000000 - add pc, pc, #0x0c000000 - add pc, pc, #0x0c000000 - add pc, pc, #0x0c000000 - add pc, pc, #0x0c000000 - - .balignl 16,0xdeadbeef - - -/* - ************************************************************************* - * - * Startup Code (reset vector) - * - * do important init only if we don't start from memory! - * relocate u-boot to ram - * setup stack - * jump to second stage - * - ************************************************************************* - */ - -_TEXT_BASE: - .word TEXT_BASE - -.globl _armboot_start -_armboot_start: - .word _start - -/* - * These are defined in the board-specific linker script. - */ -.globl _bss_start -_bss_start: - .word __bss_start - -.globl _bss_end -_bss_end: - .word _end - -#ifdef CONFIG_USE_IRQ -/* IRQ stack memory (calculated at run-time) */ -.globl IRQ_STACK_START -IRQ_STACK_START: - .word 0x0badc0de - -/* IRQ stack memory (calculated at run-time) */ -.globl FIQ_STACK_START -FIQ_STACK_START: - .word 0x0badc0de -#endif - - -/* - * the actual reset code - */ - -reset: - /* - * set the cpu to SVC32 mode - */ - mrs r0,cpsr - bic r0,r0,#0x1f - orr r0,r0,#0x13 - msr cpsr,r0 - - /* - * we do sys-critical inits only at reboot, - * not when booting from ram! - */ - -#ifndef CONFIG_SKIP_LOWLEVEL_INIT - bl cpu_init_crit - /* - * before relocating, we have to setup RAM timing - * because memory timing is board-dependend, you will - * find a lowlevel_init.S in your board directory. - */ - bl lowlevel_init -#endif - -#ifndef CONFIG_SKIP_RELOCATE_UBOOT -relocate: /* relocate U-Boot to RAM */ - adr r0, _start /* r0 <- current position of code */ - ldr r1, _TEXT_BASE /* test if we run from flash or RAM */ - cmp r0, r1 /* don't reloc during debug */ - beq stack_setup - - ldr r2, _armboot_start - ldr r3, _bss_start - sub r2, r3, r2 /* r2 <- size of armboot */ - add r2, r0, r2 /* r2 <- source end address */ - -copy_loop: - ldmia r0!, {r3-r10} /* copy from source address [r0] */ - stmia r1!, {r3-r10} /* copy to target address [r1] */ - cmp r0, r2 /* until source end addreee [r2] */ - ble copy_loop - -/* - now copy to sram the interrupt vector -*/ - adr r0, real_vectors - add r2, r0, #1024 - ldr r1, =0x0c000000 - add r1, r1, #0x08 -vector_copy_loop: - ldmia r0!, {r3-r10} - stmia r1!, {r3-r10} - cmp r0, r2 - ble vector_copy_loop -#endif /* CONFIG_SKIP_RELOCATE_UBOOT */ - - /* Set up the stack */ -stack_setup: - ldr r0, _TEXT_BASE /* upper 128 KiB: relocated uboot */ - sub r0, r0, #CONFIG_SYS_MALLOC_LEN /* malloc area */ - sub r0, r0, #CONFIG_SYS_GBL_DATA_SIZE /* bdinfo */ -#ifdef CONFIG_USE_IRQ - sub r0, r0, #(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ) -#endif - sub sp, r0, #12 /* leave 3 words for abort-stack */ - - ldr pc, _start_armboot - -_start_armboot: .word start_armboot - - -/* - ************************************************************************* - * - * CPU_init_critical registers - * - * setup important registers - * setup memory timing - * - ************************************************************************* - */ - -#define INTCON (0x01c00000+0x200000) -#define INTMSK (0x01c00000+0x20000c) -#define LOCKTIME (0x01c00000+0x18000c) -#define PLLCON (0x01c00000+0x180000) -#define CLKCON (0x01c00000+0x180004) -#define WTCON (0x01c00000+0x130000) -cpu_init_crit: - /* disable watch dog */ - ldr r0, =WTCON - ldr r1, =0x0 - str r1, [r0] - - /* - * mask all IRQs by clearing all bits in the INTMRs - */ - ldr r1,=INTMSK - ldr r0, =0x03fffeff - str r0, [r1] - - ldr r1, =INTCON - ldr r0, =0x05 - str r0, [r1] - - /* Set Clock Control Register */ - ldr r1, =LOCKTIME - ldrb r0, =800 - strb r0, [r1] - - ldr r1, =PLLCON - -#if CONFIG_S3C44B0_CLOCK_SPEED==66 - ldr r0, =0x34031 /* 66MHz (Quartz=11MHz) */ -#elif CONFIG_S3C44B0_CLOCK_SPEED==75 - ldr r0, =0x610c1 /*B2: Xtal=20mhz Fclk=75MHz */ -#else -# error CONFIG_S3C44B0_CLOCK_SPEED undefined -#endif - - str r0, [r1] - - ldr r1,=CLKCON - ldr r0, =0x7ff8 - str r0, [r1] - - mov pc, lr - - -/*************************************************/ -/* interrupt vectors */ -/*************************************************/ -real_vectors: - b reset - b undefined_instruction - b software_interrupt - b prefetch_abort - b data_abort - b not_used - b irq - b fiq - -/*************************************************/ - -undefined_instruction: - mov r6, #3 - b reset - -software_interrupt: - mov r6, #4 - b reset - -prefetch_abort: - mov r6, #5 - b reset - -data_abort: - mov r6, #6 - b reset - -not_used: - /* we *should* never reach this */ - mov r6, #7 - b reset - -irq: - mov r6, #8 - b reset - -fiq: - mov r6, #9 - b reset diff --git a/cpu/s3c44b0/timer.c b/cpu/s3c44b0/timer.c deleted file mode 100644 index 6f1d8f6..0000000 --- a/cpu/s3c44b0/timer.c +++ /dev/null @@ -1,136 +0,0 @@ -/* - * (C) Copyright 2004 - * DAVE Srl - * http://www.dave-tech.it - * http://www.wawnet.biz - * mailto:info@wawnet.biz - * - * 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/hardware.h> - -/* we always count down the max. */ -#define TIMER_LOAD_VAL 0xffff - -/* macro to read the 16 bit timer */ -#define READ_TIMER (TCNTO1 & 0xffff) - -#ifdef CONFIG_USE_IRQ -#error CONFIG_USE_IRQ NOT supported -#endif - -static ulong timestamp; -static ulong lastdec; - -int timer_init (void) -{ - TCFG0 = 0x000000E9; - TCFG1 = 0x00000004; - TCON = 0x00000900; - TCNTB1 = TIMER_LOAD_VAL; - TCMPB1 = 0; - TCON = 0x00000B00; - TCON = 0x00000900; - - - lastdec = TCNTB1 = TIMER_LOAD_VAL; - timestamp = 0; - return 0; -} - -/* - * timer without interrupts - */ - -void reset_timer (void) -{ - reset_timer_masked (); -} - -ulong get_timer (ulong base) -{ - return get_timer_masked () - base; -} - -void set_timer (ulong t) -{ - timestamp = t; -} - -void __udelay (unsigned long usec) -{ - ulong tmo; - - tmo = usec / 1000; - tmo *= CONFIG_SYS_HZ; - tmo /= 8; - - tmo += get_timer (0); - - while (get_timer_masked () < tmo) - /*NOP*/; -} - -void reset_timer_masked (void) -{ - /* reset time */ - lastdec = READ_TIMER; - timestamp = 0; -} - -ulong get_timer_masked (void) -{ - ulong now = READ_TIMER; - - if (lastdec >= now) { - /* normal mode */ - timestamp += lastdec - now; - } else { - /* we have an overflow ... */ - timestamp += lastdec + TIMER_LOAD_VAL - now; - } - lastdec = now; - - return timestamp; -} - -void udelay_masked (unsigned long usec) -{ - ulong tmo; - ulong endtime; - signed long diff; - - if (usec >= 1000) { - tmo = usec / 1000; - tmo *= CONFIG_SYS_HZ; - tmo /= 8; - } else { - tmo = usec * CONFIG_SYS_HZ; - tmo /= (1000*8); - } - - endtime = get_timer(0) + tmo; - - do { - ulong now = get_timer_masked (); - diff = endtime - now; - } while (diff >= 0); -} diff --git a/cpu/s3c44b0/u-boot.lds b/cpu/s3c44b0/u-boot.lds deleted file mode 100644 index 41ca3b4..0000000 --- a/cpu/s3c44b0/u-boot.lds +++ /dev/null @@ -1,56 +0,0 @@ -/* - * (C) Copyright 2000-2004 - * 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 - */ - -OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") -OUTPUT_ARCH(arm) -ENTRY(_start) -SECTIONS -{ - . = 0x00000000; - - . = ALIGN(4); - .text : - { - cpu/s3c44b0/start.o (.text) - *(.text) - } - - . = ALIGN(4); - .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) } - - . = ALIGN(4); - .data : { *(.data) } - - . = ALIGN(4); - .got : { *(.got) } - - . = .; - __u_boot_cmd_start = .; - .u_boot_cmd : { *(.u_boot_cmd) } - __u_boot_cmd_end = .; - - . = ALIGN(4); - __bss_start = .; - .bss (NOLOAD) : { *(.bss) . = ALIGN(4); } - _end = .; -} |