diff options
author | Stefan Roese <sr@denx.de> | 2015-04-25 06:29:46 +0200 |
---|---|---|
committer | Luka Perkov <luka.perkov@sartura.hr> | 2015-05-05 14:28:29 +0200 |
commit | d0787656405fc9a43f00715a0d05c2860cbe7b81 (patch) | |
tree | 74b29290b0a12ad313aff70036054cac158d092c /arch/arm/mvebu-common/timer.c | |
parent | 8cb78722306351c5d61ce4da18c284ef59c0caef (diff) |
arm: mvebu: Move mvebu-common into mach-mvebu
Now that the mach-mvebu directory exists and is used by Armada XP we can
move the mvebu-common files into this directory as well.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Kevin Smith <kevin.smith@elecsyscorp.com>
Tested-by: Dirk Eibach <dirk.eibach@gdsys.cc>
Diffstat (limited to 'arch/arm/mvebu-common/timer.c')
-rw-r--r-- | arch/arm/mvebu-common/timer.c | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/arch/arm/mvebu-common/timer.c b/arch/arm/mvebu-common/timer.c deleted file mode 100644 index 40c4bc2da1..0000000000 --- a/arch/arm/mvebu-common/timer.c +++ /dev/null @@ -1,147 +0,0 @@ -/* - * Copyright (C) Marvell International Ltd. and its affiliates - * Written-by: Prafulla Wadaskar <prafulla@marvell.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/soc.h> - -#define UBOOT_CNTR 0 /* counter to use for U-Boot timer */ - -/* - * ARM Timers Registers Map - */ -#define CNTMR_CTRL_REG &tmr_regs->ctrl -#define CNTMR_RELOAD_REG(tmrnum) &tmr_regs->tmr[tmrnum].reload -#define CNTMR_VAL_REG(tmrnum) &tmr_regs->tmr[tmrnum].val - -/* - * ARM Timers Control Register - * CPU_TIMERS_CTRL_REG (CTCR) - */ -#define CTCR_ARM_TIMER_EN_OFFS(cntr) (cntr * 2) -#define CTCR_ARM_TIMER_EN(cntr) (1 << CTCR_ARM_TIMER_EN_OFFS(cntr)) - -#define CTCR_ARM_TIMER_AUTO_OFFS(cntr) ((cntr * 2) + 1) -#define CTCR_ARM_TIMER_AUTO_EN(cntr) (1 << CTCR_ARM_TIMER_AUTO_OFFS(cntr)) - -/* Only Armada XP have the 25MHz enable bit (Kirkwood doesn't) */ -#if defined(CONFIG_ARMADA_XP) -#define CTCR_ARM_TIMER_25MHZ_OFFS(cntr) (cntr + 11) -#define CTCR_ARM_TIMER_25MHZ(cntr) (1 << CTCR_ARM_TIMER_25MHZ_OFFS(cntr)) -#else -#define CTCR_ARM_TIMER_25MHZ(cntr) 0 -#endif - -#define TIMER_LOAD_VAL 0xffffffff - -#define timestamp gd->arch.tbl -#define lastdec gd->arch.lastinc - -/* Timer reload and current value registers */ -struct kwtmr_val { - u32 reload; /* Timer reload reg */ - u32 val; /* Timer value reg */ -}; - -/* Timer registers */ -struct kwtmr_registers { - u32 ctrl; /* Timer control reg */ - u32 pad[3]; - struct kwtmr_val tmr[4]; - u32 wdt_reload; - u32 wdt_val; -}; - -DECLARE_GLOBAL_DATA_PTR; - -static struct kwtmr_registers *tmr_regs = - (struct kwtmr_registers *)MVEBU_TIMER_BASE; - -static inline ulong read_timer(void) -{ - return readl(CNTMR_VAL_REG(UBOOT_CNTR)) / (CONFIG_SYS_TCLK / 1000); -} - -ulong get_timer_masked(void) -{ - ulong now = read_timer(); - - if (lastdec >= now) { - /* normal mode */ - timestamp += lastdec - now; - } else { - /* we have an overflow ... */ - timestamp += lastdec + - (TIMER_LOAD_VAL / (CONFIG_SYS_TCLK / 1000)) - now; - } - lastdec = now; - - return timestamp; -} - -ulong get_timer(ulong base) -{ - return get_timer_masked() - base; -} - -void __udelay(unsigned long usec) -{ - uint current; - ulong delayticks; - - current = readl(CNTMR_VAL_REG(UBOOT_CNTR)); - delayticks = (usec * (CONFIG_SYS_TCLK / 1000000)); - - if (current < delayticks) { - delayticks -= current; - while (readl(CNTMR_VAL_REG(UBOOT_CNTR)) < current) ; - while ((TIMER_LOAD_VAL - delayticks) < - readl(CNTMR_VAL_REG(UBOOT_CNTR))) ; - } else { - while (readl(CNTMR_VAL_REG(UBOOT_CNTR)) > - (current - delayticks)) ; - } -} - -/* - * init the counter - */ -int timer_init(void) -{ - /* load value into timer */ - writel(TIMER_LOAD_VAL, CNTMR_RELOAD_REG(UBOOT_CNTR)); - writel(TIMER_LOAD_VAL, CNTMR_VAL_REG(UBOOT_CNTR)); - - /* enable timer in auto reload mode */ - clrsetbits_le32(CNTMR_CTRL_REG, CTCR_ARM_TIMER_25MHZ(UBOOT_CNTR), - CTCR_ARM_TIMER_EN(UBOOT_CNTR) | - CTCR_ARM_TIMER_AUTO_EN(UBOOT_CNTR)); - - /* init the timestamp and lastdec value */ - lastdec = read_timer(); - timestamp = 0; - - return 0; -} - -/* - * 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 (ulong)CONFIG_SYS_HZ; -} |