diff options
Diffstat (limited to 'arch/arm/cpu/arm1176/tnetv107x/timer.c')
-rw-r--r-- | arch/arm/cpu/arm1176/tnetv107x/timer.c | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/arch/arm/cpu/arm1176/tnetv107x/timer.c b/arch/arm/cpu/arm1176/tnetv107x/timer.c deleted file mode 100644 index 6e0dd0d2bd..0000000000 --- a/arch/arm/cpu/arm1176/tnetv107x/timer.c +++ /dev/null @@ -1,93 +0,0 @@ -/* - * TNETV107X: Timer implementation - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/clock.h> - -struct timer_regs { - u_int32_t pid12; - u_int32_t pad[3]; - u_int32_t tim12; - u_int32_t tim34; - u_int32_t prd12; - u_int32_t prd34; - u_int32_t tcr; - u_int32_t tgcr; - u_int32_t wdtcr; -}; - -#define regs ((struct timer_regs *)CONFIG_SYS_TIMERBASE) - -#define TIMER_LOAD_VAL (CONFIG_SYS_HZ_CLOCK / CONFIG_SYS_HZ) -#define TIM_CLK_DIV 16 - -static ulong timestamp; -static ulong lastinc; - -int timer_init(void) -{ - clk_enable(TNETV107X_LPSC_TIMER0); - - lastinc = timestamp = 0; - - /* We are using timer34 in unchained 32-bit mode, full speed */ - __raw_writel(0x0, ®s->tcr); - __raw_writel(0x0, ®s->tgcr); - __raw_writel(0x06 | ((TIM_CLK_DIV - 1) << 8), ®s->tgcr); - __raw_writel(0x0, ®s->tim34); - __raw_writel(TIMER_LOAD_VAL, ®s->prd34); - __raw_writel(2 << 22, ®s->tcr); - - return 0; -} - -static ulong get_timer_raw(void) -{ - ulong now = __raw_readl(®s->tim34); - - if (now >= lastinc) - timestamp += now - lastinc; - else - timestamp += now + TIMER_LOAD_VAL - lastinc; - - lastinc = now; - - return timestamp; -} - -ulong get_timer(ulong base) -{ - return (get_timer_raw() / (TIMER_LOAD_VAL / TIM_CLK_DIV)) - base; -} - -unsigned long long get_ticks(void) -{ - return get_timer(0); -} - -void __udelay(unsigned long usec) -{ - ulong tmo; - ulong endtime; - signed long diff; - - tmo = CONFIG_SYS_HZ_CLOCK / 1000; - tmo *= usec; - tmo /= (1000 * TIM_CLK_DIV); - - endtime = get_timer_raw() + tmo; - - do { - ulong now = get_timer_raw(); - diff = endtime - now; - } while (diff >= 0); -} - -ulong get_tbclk(void) -{ - return CONFIG_SYS_HZ; -} |