This patch adds minimum support for R-Mobile. Only minimal support with timer. This CPU can uses the peripheral of Renesas SuperH. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>master
parent
a6cd85aad2
commit
4fb44e22ec
@ -0,0 +1,48 @@ |
||||
#
|
||||
# (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).o
|
||||
|
||||
COBJS += cpu_info.o
|
||||
COBJS += timer.o
|
||||
|
||||
SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
|
||||
OBJS := $(addprefix $(obj),$(COBJS) $(COBJS-y))
|
||||
START := $(addprefix $(obj),$(START))
|
||||
|
||||
all: $(obj).depend $(LIB) |
||||
|
||||
$(LIB): $(OBJS) |
||||
$(call cmd_link_o_target, $(OBJS))
|
||||
|
||||
#########################################################################
|
||||
|
||||
# defines $(obj).depend target
|
||||
include $(SRCTREE)/rules.mk |
||||
|
||||
sinclude $(obj).depend |
||||
|
||||
#########################################################################
|
||||
|
@ -0,0 +1,74 @@ |
||||
/*
|
||||
* (C) Copyright 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> |
||||
* (C) Copyright 2012 Renesas Solutions Corp. |
||||
* |
||||
* 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/rmobile.h> |
||||
|
||||
#ifdef CONFIG_ARCH_CPU_INIT |
||||
int arch_cpu_init(void) |
||||
{ |
||||
icache_enable(); |
||||
return 0; |
||||
} |
||||
#endif |
||||
|
||||
#ifndef CONFIG_SYS_DCACHE_OFF |
||||
void enable_caches(void) |
||||
{ |
||||
dcache_enable(); |
||||
} |
||||
#endif |
||||
|
||||
#ifdef CONFIG_DISPLAY_CPUINFO |
||||
static u32 get_cpu_type(void) |
||||
{ |
||||
u32 id; |
||||
u32 type; |
||||
|
||||
id = readl(CCCR); |
||||
type = (id >> 8) & 0xFF; |
||||
|
||||
return type; |
||||
} |
||||
|
||||
static u32 get_cpu_rev(void) |
||||
{ |
||||
u32 id; |
||||
u32 rev; |
||||
|
||||
id = readl(CCCR); |
||||
rev = (id >> 4) & 0xF; |
||||
|
||||
return rev; |
||||
} |
||||
|
||||
int print_cpuinfo(void) |
||||
{ |
||||
switch (get_cpu_type()) { |
||||
default: |
||||
printf("CPU: Renesas Electronics CPU rev %d\n", get_cpu_rev()); |
||||
break; |
||||
} |
||||
return 0; |
||||
} |
||||
#endif |
@ -0,0 +1,97 @@ |
||||
/*
|
||||
* (C) Copyright 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> |
||||
* (C) Copyright 2012 Renesas Solutions Corp. |
||||
* |
||||
* 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-armv7/globaltimer.h> |
||||
#include <asm/arch/rmobile.h> |
||||
|
||||
static struct globaltimer *global_timer = \
|
||||
(struct globaltimer *)GLOBAL_TIMER_BASE_ADDR; |
||||
|
||||
#define CLK2MHZ(clk) (clk / 1000 / 1000) |
||||
static u64 get_cpu_global_timer(void) |
||||
{ |
||||
u32 low, high; |
||||
u64 timer; |
||||
|
||||
u32 old = readl(&global_timer->cnt_h); |
||||
while (1) { |
||||
low = readl(&global_timer->cnt_l); |
||||
high = readl(&global_timer->cnt_h); |
||||
if (old == high) |
||||
break; |
||||
else |
||||
old = high; |
||||
} |
||||
|
||||
timer = high; |
||||
return (u64)((timer << 32) | low); |
||||
} |
||||
|
||||
static u64 get_time_us(void) |
||||
{ |
||||
u64 timer = get_cpu_global_timer(); |
||||
|
||||
timer = ((timer << 2) + (CLK2MHZ(CONFIG_SYS_CPU_CLK) >> 1)); |
||||
timer /= (u64)CLK2MHZ(CONFIG_SYS_CPU_CLK); |
||||
return timer; |
||||
} |
||||
|
||||
static ulong get_time_ms(void) |
||||
{ |
||||
return (ulong)(get_time_us() / 1000); |
||||
} |
||||
|
||||
int timer_init(void) |
||||
{ |
||||
writel(0x01, &global_timer->ctl); |
||||
return 0; |
||||
} |
||||
|
||||
void __udelay(unsigned long usec) |
||||
{ |
||||
u64 start, current; |
||||
u64 wait; |
||||
|
||||
start = get_cpu_global_timer(); |
||||
wait = (u64)((usec * CLK2MHZ(CONFIG_SYS_CPU_CLK)) >> 2); |
||||
do { |
||||
current = get_cpu_global_timer(); |
||||
} while ((current - start) < wait); |
||||
} |
||||
|
||||
ulong get_timer(ulong base) |
||||
{ |
||||
return get_time_ms() - base; |
||||
} |
||||
|
||||
unsigned long long get_ticks(void) |
||||
{ |
||||
return get_cpu_global_timer(); |
||||
} |
||||
|
||||
ulong get_tbclk(void) |
||||
{ |
||||
return (ulong)(CONFIG_SYS_CPU_CLK >> 2); |
||||
} |
@ -0,0 +1,8 @@ |
||||
#ifndef __ASM_ARCH_RMOBILE_H |
||||
#define __ASM_ARCH_RMOBILE_H |
||||
|
||||
#if defined(CONFIG_RMOBILE) |
||||
#error "SOC Name not defined" |
||||
#endif /* CONFIG_RMOBILE */ |
||||
|
||||
#endif /* __ASM_ARCH_RMOBILE_H */ |
Loading…
Reference in new issue