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rcar: Drop timer

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Drop this unused driver.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2023-02-01 13:19:37 -07:00
committed by Tom Rini
parent 8f2eb2fb19
commit 4d4cdd4d19
2 changed files with 0 additions and 88 deletions
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1
arch/arm/mach-rmobile/Makefile
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@@ -7,7 +7,6 @@ obj-y = cpu_info.o
obj-y += emac.o
obj-$(CONFIG_DISPLAY_BOARDINFO) += board.o
obj-$(CONFIG_GLOBAL_TIMER) += timer.o
obj-$(CONFIG_TMU_TIMER) += ../../sh/lib/time.o
obj-$(CONFIG_SH73A0) += lowlevel_init.o cpu_info-sh73a0.o pfc-sh73a0.o
obj-$(CONFIG_R8A7740) += lowlevel_init.o cpu_info-r8a7740.o pfc-r8a7740.o

87
arch/arm/mach-rmobile/timer.c
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@@ -1,87 +0,0 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
* (C) Copyright 2012 Renesas Solutions Corp.
*/
#include <common.h>
#include <div64.h>
#include <init.h>
#include <time.h>
#include <asm/io.h>
#include <asm/arch-armv7/globaltimer.h>
#include <asm/arch/rmobile.h>
#include <linux/delay.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(CFG_SYS_CPU_CLK) >> 1));
do_div(timer, CLK2MHZ(CFG_SYS_CPU_CLK));
return timer;
}
static ulong get_time_ms(void)
{
u64 us = get_time_us();
do_div(us, 1000);
return us;
}
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(CFG_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)(CFG_SYS_CPU_CLK >> 2);
}