diff options
author | Sascha Hauer <s.hauer@pengutronix.de> | 2008-03-30 10:28:46 (GMT) |
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committer | Peter Pearse <peter.pearse@arm.com> | 2008-03-30 10:28:46 (GMT) |
commit | 8bf69d81782619187933a605f1a95ee1d069478d (patch) | |
tree | 100ef560ad420c1513514a228aba8499890c9c1d /cpu | |
parent | 8c16cb0d3b971f46fbe77c072664c0f2dcd4471d (diff) | |
download | u-boot-8bf69d81782619187933a605f1a95ee1d069478d.tar.xz |
Separate omap24xx specific code from arm1136
Move omap24xx code to cpu/arm1136/omap24xx, rename include/asm-arm/arch-arm1136 to cpu/arm1136/omap24xx.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Diffstat (limited to 'cpu')
-rw-r--r-- | cpu/arm1136/Makefile | 2 | ||||
-rw-r--r-- | cpu/arm1136/cpu.c | 11 | ||||
-rw-r--r-- | cpu/arm1136/omap24xx/Makefile | 46 | ||||
-rw-r--r-- | cpu/arm1136/omap24xx/interrupts.c (renamed from cpu/arm1136/interrupts.c) | 109 | ||||
-rw-r--r-- | cpu/arm1136/omap24xx/start.S | 42 | ||||
-rw-r--r-- | cpu/arm1136/start.S | 21 |
6 files changed, 154 insertions, 77 deletions
diff --git a/cpu/arm1136/Makefile b/cpu/arm1136/Makefile index d5ac7d3..7701b03 100644 --- a/cpu/arm1136/Makefile +++ b/cpu/arm1136/Makefile @@ -26,7 +26,7 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(CPU).a START = start.o -COBJS = interrupts.o cpu.o +COBJS = cpu.o SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS)) diff --git a/cpu/arm1136/cpu.c b/cpu/arm1136/cpu.c index fa78eaa..90e9553 100644 --- a/cpu/arm1136/cpu.c +++ b/cpu/arm1136/cpu.c @@ -33,9 +33,6 @@ #include <common.h> #include <command.h> -#if !defined(CONFIG_INTEGRATOR) && ! defined(CONFIG_ARCH_CINTEGRATOR) -#include <asm/arch/omap2420.h> -#endif #ifdef CONFIG_USE_IRQ DECLARE_GLOBAL_DATA_PTR; @@ -47,10 +44,10 @@ static unsigned long read_p15_c1 (void) unsigned long value; __asm__ __volatile__( - "mrc p15, 0, %0, c1, c0, 0 @ read control reg\n" - : "=r" (value) - : - : "memory"); + "mrc p15, 0, %0, c1, c0, 0 @ read control reg\n" + : "=r" (value) + : + : "memory"); return value; } diff --git a/cpu/arm1136/omap24xx/Makefile b/cpu/arm1136/omap24xx/Makefile new file mode 100644 index 0000000..39b0a82 --- /dev/null +++ b/cpu/arm1136/omap24xx/Makefile @@ -0,0 +1,46 @@ +# +# (C) Copyright 2000-2008 +# 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 Foundatio; 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 = $(obj)lib$(SOC).a + +COBJS = interrupts.o +SOBJS = start.o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) + +all: $(obj).depend $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/cpu/arm1136/interrupts.c b/cpu/arm1136/omap24xx/interrupts.c index 491c902..5963d62 100644 --- a/cpu/arm1136/interrupts.c +++ b/cpu/arm1136/omap24xx/interrupts.c @@ -32,31 +32,28 @@ #include <common.h> #include <asm/arch/bits.h> - -#if !defined(CONFIG_INTEGRATOR) && ! defined(CONFIG_ARCH_CINTEGRATOR) -# include <asm/arch/omap2420.h> -#endif +#include <asm/arch/omap2420.h> #define TIMER_LOAD_VAL 0 /* macro to read the 32 bit timer */ -#define READ_TIMER (*(volatile ulong *)(CFG_TIMERBASE+TCRR)) - -#if defined(CONFIG_INTEGRATOR) && defined(CONFIG_ARCH_CINTEGRATOR) -/* Use the IntegratorCP function from board/integratorcp.c */ -#else +#define READ_TIMER (*volatile ulong*(CFG_TIMERBASE+TCRR)) static ulong timestamp; static ulong lastinc; -/* nothing really to do with interrupts, just starts up a counter. */ -int interrupt_init (void) +/* + * nothing really to do with interrupts, just starts up a counter. + */ +int interrupt_init(void) { int32_t val; /* Start the counter ticking up */ - *((int32_t *) (CFG_TIMERBASE + TLDR)) = TIMER_LOAD_VAL; /* reload value on overflow*/ - val = (CFG_PVT << 2) | BIT5 | BIT1 | BIT0; /* mask to enable timer*/ + /* reload value on overflow*/ + *((int32_t *) (CFG_TIMERBASE + TLDR)) = TIMER_LOAD_VAL; + /* mask to enable timer*/ + val = (CFG_PVT << 2) | BIT5 | BIT1 | BIT0; *((int32_t *) (CFG_TIMERBASE + TCLR)) = val; /* start timer */ reset_timer_masked(); /* init the timestamp and lastinc value */ @@ -66,82 +63,99 @@ int interrupt_init (void) /* * timer without interrupts */ -void reset_timer (void) +void reset_timer(void) { - reset_timer_masked (); + reset_timer_masked(); } -ulong get_timer (ulong base) +ulong get_timer(ulong base) { - return get_timer_masked () - base; + return get_timer_masked() - base; } -void set_timer (ulong t) +void set_timer(ulong t) { timestamp = t; } /* delay x useconds AND perserve advance timstamp value */ -void udelay (unsigned long usec) +void udelay(unsigned long usec) { ulong tmo, tmp; - if (usec >= 1000) { /* if "big" number, spread normalization to seconds */ - tmo = usec / 1000; /* start to normalize for usec to ticks per sec */ - tmo *= CFG_HZ; /* find number of "ticks" to wait to achieve target */ - tmo /= 1000; /* finish normalize. */ - } else { /* else small number, don't kill it prior to HZ multiply */ + /* if "big" number, spread normalization to seconds */ + if (usec >= 1000) { + /* start to normalize for usec to ticks per sec */ + tmo = usec / 1000; + /* find number of "ticks" to wait to achieve target */ + tmo *= CFG_HZ; + /* finish normalize. */ + tmo /= 1000; + } else { + /* else small number, don't kill it prior to HZ multiply */ tmo = usec * CFG_HZ; tmo /= (1000*1000); } - - tmp = get_timer (0); /* get current timestamp */ - if ( (tmo + tmp + 1) < tmp )/* if setting this forward will roll time stamp */ - reset_timer_masked (); /* reset "advancing" timestamp to 0, set lastinc value */ + /* get current timestamp */ + tmp = get_timer(0); + if ((tmo + tmp + 1) < tmp) + /* setting this forward will roll time stamp */ + /* reset "advancing" timestamp to 0, set lastinc value */ + reset_timer_masked(); else - tmo += tmp; /* else, set advancing stamp wake up time */ - while (get_timer_masked () < tmo)/* loop till event */ + /* else, set advancing stamp wake up time */ + tmo += tmp; + while (get_timer_masked() < tmo)/* loop till event */ /*NOP*/; } -void reset_timer_masked (void) +void reset_timer_masked(void) { /* reset time */ - lastinc = READ_TIMER; /* capture current incrementer value time */ - timestamp = 0; /* start "advancing" time stamp from 0 */ + /* capture current incrementer value time */ + lastinc = READ_TIMER; + /* start "advancing" time stamp from 0 */ + timestamp = 0; } -ulong get_timer_masked (void) +ulong get_timer_masked(void) { - ulong now = READ_TIMER; /* current tick value */ + ulong now = READ_TIMER; /* current tick value */ - if (now >= lastinc) /* normal mode (non roll) */ - timestamp += (now - lastinc); /* move stamp fordward with absoulte diff ticks */ - else /* we have rollover of incrementer */ + /* normal mode (non roll) */ + if (now >= lastinc) + /* move stamp forward with absolute diff ticks */ + timestamp += (now - lastinc); + else + /* we have rollover of incrementer */ timestamp += (0xFFFFFFFF - lastinc) + now; lastinc = now; return timestamp; } /* waits specified delay value and resets timestamp */ -void udelay_masked (unsigned long usec) +void udelay_masked(unsigned long usec) { ulong tmo; ulong endtime; signed long diff; - if (usec >= 1000) { /* if "big" number, spread normalization to seconds */ - tmo = usec / 1000; /* start to normalize for usec to ticks per sec */ - tmo *= CFG_HZ; /* find number of "ticks" to wait to achieve target */ - tmo /= 1000; /* finish normalize. */ - } else { /* else small number, don't kill it prior to HZ multiply */ + if (usec >= 1000) { + /* "big" number, spread normalization to seconds */ + /* start to normalize for usec to ticks per sec */ + tmo = usec / 1000; + /* find number of "ticks" to wait to achieve target */ + tmo *= CFG_HZ; + tmo /= 1000;/* finish normalize. */ + } else { + /* else small number, don't kill it prior to HZ multiply */ tmo = usec * CFG_HZ; tmo /= (1000*1000); } - endtime = get_timer_masked () + tmo; + endtime = get_timer_masked() + tmo; do { - ulong now = get_timer_masked (); + ulong now = get_timer_masked(); diff = endtime - now; } while (diff >= 0); } @@ -158,10 +172,9 @@ unsigned long long get_ticks(void) * This function is derived from PowerPC code (timebase clock frequency). * On ARM it returns the number of timer ticks per second. */ -ulong get_tbclk (void) +ulong get_tbclk(void) { ulong tbclk; tbclk = CFG_HZ; return tbclk; } -#endif /* !Integrator/CP */ diff --git a/cpu/arm1136/omap24xx/start.S b/cpu/arm1136/omap24xx/start.S new file mode 100644 index 0000000..5634312 --- /dev/null +++ b/cpu/arm1136/omap24xx/start.S @@ -0,0 +1,42 @@ +/* + * armboot - Startup Code for OMP2420/ARM1136 CPU-core + * + * Copyright (c) 2004 Texas Instruments <r-woodruff2@ti.com> + * + * Copyright (c) 2001 Marius Gr??ger <mag@sysgo.de> + * Copyright (c) 2002 Alex Z??pke <azu@sysgo.de> + * Copyright (c) 2002 Gary Jennejohn <gj@denx.de> + * Copyright (c) 2003 Richard Woodruff <r-woodruff2@ti.com> + * Copyright (c) 2003 Kshitij <kshitij@ti.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 <asm/arch/omap2420.h> + +.globl reset_cpu +reset_cpu: + ldr r1, rstctl /* get addr for global reset reg */ + mov r3, #0x2 /* full reset pll+mpu */ + str r3, [r1] /* force reset */ + mov r0, r0 +_loop_forever: + b _loop_forever +rstctl: + .word PM_RSTCTRL_WKUP diff --git a/cpu/arm1136/start.S b/cpu/arm1136/start.S index 8b765f1..56009d0 100644 --- a/cpu/arm1136/start.S +++ b/cpu/arm1136/start.S @@ -30,9 +30,6 @@ #include <config.h> #include <version.h> -#if !defined(CONFIG_INTEGRATOR) && ! defined(CONFIG_ARCH_CINTEGRATOR) -#include <asm/arch/omap2420.h> -#endif .globl _start _start: b reset #ifdef CONFIG_ONENAND_IPL @@ -438,22 +435,4 @@ fiq: arm1136_cache_flush: mcr p15, 0, r1, c7, c5, 0 @ invalidate I cache mov pc, lr @ back to caller - -#if defined(CONFIG_INTEGRATOR) && defined(CONFIG_ARCH_CINTEGRATOR) -/* Use the IntegratorCP function from board/integratorcp/platform.S */ -#else - - .align 5 -.globl reset_cpu -reset_cpu: - ldr r1, rstctl /* get addr for global reset reg */ - mov r3, #0x2 /* full reset pll+mpu */ - str r3, [r1] /* force reset */ - mov r0, r0 -_loop_forever: - b _loop_forever -rstctl: - .word PM_RSTCTRL_WKUP - -#endif #endif /* CONFIG_ONENAND_IPL */ |