diff options
Diffstat (limited to 'cpu/arm926ejs/spear')
-rw-r--r-- | cpu/arm926ejs/spear/Makefile | 52 | ||||
-rw-r--r-- | cpu/arm926ejs/spear/reset.c | 54 | ||||
-rw-r--r-- | cpu/arm926ejs/spear/timer.c | 153 |
3 files changed, 0 insertions, 259 deletions
diff --git a/cpu/arm926ejs/spear/Makefile b/cpu/arm926ejs/spear/Makefile deleted file mode 100644 index bf8dfa8..0000000 --- a/cpu/arm926ejs/spear/Makefile +++ /dev/null @@ -1,52 +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 = $(obj)lib$(SOC).a - -COBJS := reset.o \ - timer.o -SOBJS := - -SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) -OBJS := $(addprefix $(obj),$(COBJS)) -SOBJS := $(addprefix $(obj),$(SOBJS)) - -$(LIB): $(obj).depend $(OBJS) $(SOBJS) - $(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS) - -clean: - rm -f $(SOBJS) $(OBJS) - -distclean: clean - rm -f $(LIB) core *.bak $(obj).depend - -######################################################################### - -# defines $(obj).depend target -include $(SRCTREE)/rules.mk - -sinclude $(obj).depend - -######################################################################### diff --git a/cpu/arm926ejs/spear/reset.c b/cpu/arm926ejs/spear/reset.c deleted file mode 100644 index 73ad86d..0000000 --- a/cpu/arm926ejs/spear/reset.c +++ /dev/null @@ -1,54 +0,0 @@ -/* - * (C) Copyright 2009 - * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.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 <asm/io.h> -#include <asm/arch/hardware.h> -#include <asm/arch/spr_syscntl.h> - -void reset_cpu(ulong ignored) -{ - struct syscntl_regs *syscntl_regs_p = - (struct syscntl_regs *)CONFIG_SPEAR_SYSCNTLBASE; - - printf("System is going to reboot ...\n"); - - /* - * This 1 second delay will allow the above message - * to be printed before reset - */ - udelay((1000 * 1000)); - - /* Going into slow mode before resetting SOC */ - writel(0x02, &syscntl_regs_p->scctrl); - - /* - * Writing any value to the system status register will - * reset the SoC - */ - writel(0x00, &syscntl_regs_p->scsysstat); - - /* system will restart */ - while (1) - ; -} diff --git a/cpu/arm926ejs/spear/timer.c b/cpu/arm926ejs/spear/timer.c deleted file mode 100644 index 06858b4..0000000 --- a/cpu/arm926ejs/spear/timer.c +++ /dev/null @@ -1,153 +0,0 @@ -/* - * (C) Copyright 2009 - * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.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 <asm/io.h> -#include <asm/arch/hardware.h> -#include <asm/arch/spr_gpt.h> -#include <asm/arch/spr_misc.h> - -#define GPT_RESOLUTION (CONFIG_SPEAR_HZ_CLOCK / CONFIG_SPEAR_HZ) -#define READ_TIMER() (readl(&gpt_regs_p->count) & GPT_FREE_RUNNING) - -static struct gpt_regs *const gpt_regs_p = - (struct gpt_regs *)CONFIG_SPEAR_TIMERBASE; - -static struct misc_regs *const misc_regs_p = - (struct misc_regs *)CONFIG_SPEAR_MISCBASE; - -static ulong timestamp; -static ulong lastdec; - -int timer_init(void) -{ - u32 synth; - - /* Prescaler setting */ -#if defined(CONFIG_SPEAR3XX) - writel(MISC_PRSC_CFG, &misc_regs_p->prsc2_clk_cfg); - synth = MISC_GPT4SYNTH; -#elif defined(CONFIG_SPEAR600) - writel(MISC_PRSC_CFG, &misc_regs_p->prsc1_clk_cfg); - synth = MISC_GPT3SYNTH; -#else -# error Incorrect config. Can only be spear{600|300|310|320} -#endif - - writel(readl(&misc_regs_p->periph_clk_cfg) | synth, - &misc_regs_p->periph_clk_cfg); - - /* disable timers */ - writel(GPT_PRESCALER_1 | GPT_MODE_AUTO_RELOAD, &gpt_regs_p->control); - - /* load value for free running */ - writel(GPT_FREE_RUNNING, &gpt_regs_p->compare); - - /* auto reload, start timer */ - writel(readl(&gpt_regs_p->control) | GPT_ENABLE, &gpt_regs_p->control); - - reset_timer_masked(); - - return 0; -} - -/* - * timer without interrupts - */ - -void reset_timer(void) -{ - reset_timer_masked(); -} - -ulong get_timer(ulong base) -{ - return (get_timer_masked() / GPT_RESOLUTION) - base; -} - -void set_timer(ulong t) -{ - timestamp = t; -} - -void __udelay(unsigned long usec) -{ - ulong tmo; - ulong start = get_timer_masked(); - ulong tenudelcnt = CONFIG_SPEAR_HZ_CLOCK / (1000 * 100); - ulong rndoff; - - rndoff = (usec % 10) ? 1 : 0; - - /* tenudelcnt timer tick gives 10 microsecconds delay */ - tmo = ((usec / 10) + rndoff) * tenudelcnt; - - while ((ulong) (get_timer_masked() - start) < tmo) - ; -} - -void reset_timer_masked(void) -{ - /* reset time */ - lastdec = READ_TIMER(); - timestamp = 0; -} - -ulong get_timer_masked(void) -{ - ulong now = READ_TIMER(); - - if (now >= lastdec) { - /* normal mode */ - timestamp += now - lastdec; - } else { - /* we have an overflow ... */ - timestamp += now + GPT_FREE_RUNNING - lastdec; - } - lastdec = now; - - return timestamp; -} - -void udelay_masked(unsigned long usec) -{ - return udelay(usec); -} - -/* - * This function is derived from PowerPC code (read timebase as long long). - * On ARM 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 ARM it returns the number of timer ticks per second. - */ -ulong get_tbclk(void) -{ - return CONFIG_SPEAR_HZ; -} |