[PATCH v3 26/76] rcar: Drop timer
Simon Glass
sjg at chromium.org
Wed Feb 1 21:19:37 CET 2023
Drop this unused driver.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
(no changes since v1)
arch/arm/mach-rmobile/Makefile | 1 -
arch/arm/mach-rmobile/timer.c | 87 ----------------------------------
2 files changed, 88 deletions(-)
delete mode 100644 arch/arm/mach-rmobile/timer.c
diff --git a/arch/arm/mach-rmobile/Makefile b/arch/arm/mach-rmobile/Makefile
index 195bbeb5c88..3f77760e50d 100644
--- a/arch/arm/mach-rmobile/Makefile
+++ b/arch/arm/mach-rmobile/Makefile
@@ -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
diff --git a/arch/arm/mach-rmobile/timer.c b/arch/arm/mach-rmobile/timer.c
deleted file mode 100644
index 293c23b5e25..00000000000
--- a/arch/arm/mach-rmobile/timer.c
+++ /dev/null
@@ -1,87 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * (C) Copyright 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj at 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);
-}
--
2.39.1.456.gfc5497dd1b-goog
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