diff options
Diffstat (limited to 'arch/arm/cpu/arm926ejs/mx25')
| -rw-r--r-- | arch/arm/cpu/arm926ejs/mx25/Makefile | 8 | ||||
| -rw-r--r-- | arch/arm/cpu/arm926ejs/mx25/asm-offsets.c | 60 | ||||
| -rw-r--r-- | arch/arm/cpu/arm926ejs/mx25/timer.c | 31 |
3 files changed, 76 insertions, 23 deletions
diff --git a/arch/arm/cpu/arm926ejs/mx25/Makefile b/arch/arm/cpu/arm926ejs/mx25/Makefile index 38d7f03..9219c06 100644 --- a/arch/arm/cpu/arm926ejs/mx25/Makefile +++ b/arch/arm/cpu/arm926ejs/mx25/Makefile @@ -24,18 +24,18 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(SOC).o -COBJS = generic.o timer.o -MX27OBJS = reset.o +COBJS = generic.o timer.o reset.o SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) -SRCS += $(addprefix $(SRCTREE)/arch/arm/cpu/arm926ejs/mx27/,$(MX27OBJS:.o=.c)) -OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS) $(MX27OBJS)) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) all: $(obj).depend $(LIB) $(LIB): $(OBJS) $(call cmd_link_o_target, $(OBJS)) +$(OBJS) : $(TOPDIR)/include/asm/arch/asm-offsets.h + ######################################################################### # defines $(obj).depend target diff --git a/arch/arm/cpu/arm926ejs/mx25/asm-offsets.c b/arch/arm/cpu/arm926ejs/mx25/asm-offsets.c new file mode 100644 index 0000000..ba8dfd4 --- /dev/null +++ b/arch/arm/cpu/arm926ejs/mx25/asm-offsets.c @@ -0,0 +1,60 @@ +/* + * Adapted from Linux v2.6.36 kernel: arch/powerpc/kernel/asm-offsets.c + * + * This program is used to generate definitions needed by + * assembly language modules. + * + * We use the technique used in the OSF Mach kernel code: + * generate asm statements containing #defines, + * compile this file to assembler, and then extract the + * #defines from the assembly-language output. + * + * 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. + */ + +#include <common.h> +#include <asm/arch/imx-regs.h> + +#include <linux/kbuild.h> + +int main(void) +{ + /* Clock Control Module */ + DEFINE(CCM_CCTL, offsetof(struct ccm_regs, cctl)); + DEFINE(CCM_CGCR0, offsetof(struct ccm_regs, cgr0)); + DEFINE(CCM_CGCR1, offsetof(struct ccm_regs, cgr1)); + DEFINE(CCM_CGCR2, offsetof(struct ccm_regs, cgr2)); + DEFINE(CCM_PCDR2, offsetof(struct ccm_regs, pcdr[2])); + DEFINE(CCM_MCR, offsetof(struct ccm_regs, mcr)); + + /* Enhanced SDRAM Controller */ + DEFINE(ESDRAMC_ESDCTL0, offsetof(struct esdramc_regs, ctl0)); + DEFINE(ESDRAMC_ESDCFG0, offsetof(struct esdramc_regs, cfg0)); + DEFINE(ESDRAMC_ESDMISC, offsetof(struct esdramc_regs, misc)); + + /* Multi-Layer AHB Crossbar Switch */ + DEFINE(MAX_MPR0, offsetof(struct max_regs, mpr0)); + DEFINE(MAX_SGPCR0, offsetof(struct max_regs, sgpcr0)); + DEFINE(MAX_MPR1, offsetof(struct max_regs, mpr1)); + DEFINE(MAX_SGPCR1, offsetof(struct max_regs, sgpcr1)); + DEFINE(MAX_MPR2, offsetof(struct max_regs, mpr2)); + DEFINE(MAX_SGPCR2, offsetof(struct max_regs, sgpcr2)); + DEFINE(MAX_MPR3, offsetof(struct max_regs, mpr3)); + DEFINE(MAX_SGPCR3, offsetof(struct max_regs, sgpcr3)); + DEFINE(MAX_MPR4, offsetof(struct max_regs, mpr4)); + DEFINE(MAX_SGPCR4, offsetof(struct max_regs, sgpcr4)); + DEFINE(MAX_MGPCR0, offsetof(struct max_regs, mgpcr0)); + DEFINE(MAX_MGPCR1, offsetof(struct max_regs, mgpcr1)); + DEFINE(MAX_MGPCR2, offsetof(struct max_regs, mgpcr2)); + DEFINE(MAX_MGPCR3, offsetof(struct max_regs, mgpcr3)); + DEFINE(MAX_MGPCR4, offsetof(struct max_regs, mgpcr4)); + + /* AHB <-> IP-Bus Interface */ + DEFINE(AIPS_MPR_0_7, offsetof(struct aips_regs, mpr_0_7)); + DEFINE(AIPS_MPR_8_15, offsetof(struct aips_regs, mpr_8_15)); + + return 0; +} diff --git a/arch/arm/cpu/arm926ejs/mx25/timer.c b/arch/arm/cpu/arm926ejs/mx25/timer.c index 14f0c2d..5eb2747 100644 --- a/arch/arm/cpu/arm926ejs/mx25/timer.c +++ b/arch/arm/cpu/arm926ejs/mx25/timer.c @@ -121,20 +121,6 @@ int timer_init(void) return 0; } -void reset_timer_masked(void) -{ - struct gpt_regs *gpt = (struct gpt_regs *)IMX_GPT1_BASE; - /* reset time */ - /* capture current incrementer value time */ - lastinc = readl(&gpt->counter); - timestamp = 0; /* start "advancing" time stamp from 0 */ -} - -void reset_timer(void) -{ - reset_timer_masked(); -} - unsigned long long get_ticks (void) { struct gpt_regs *gpt = (struct gpt_regs *)IMX_GPT1_BASE; @@ -170,11 +156,6 @@ ulong get_timer (ulong base) return get_timer_masked () - base; } -void set_timer (ulong t) -{ - timestamp = time_to_tick(t); -} - /* delay x useconds AND preserve advance timstamp value */ void __udelay (unsigned long usec) { @@ -187,3 +168,15 @@ void __udelay (unsigned long usec) while (get_ticks() < tmp) /* loop till event */ /*NOP*/; } + +/* + * 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 tbclk; + + tbclk = CONFIG_MX25_CLK32; + return tbclk; +} |