mediatek: mt8192: add timer support

add timer driver.

Signed-off-by: Dehui Sun <dehui.sun@mediatek.com>
Change-Id: I07448d85a15bb14577b05e4f302860d609420ba7
This commit is contained in:
Dehui Sun 2020-07-03 09:19:06 +08:00 committed by Nina Wu
parent 0f40824729
commit 4a128018b6
3 changed files with 64 additions and 2 deletions

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@ -0,0 +1,30 @@
/*
* Copyright (c) 2020, MediaTek Inc. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <arch_helpers.h>
#include <mt_timer.h>
#include <platform_def.h>
uint64_t normal_time_base;
uint64_t atf_time_base;
void sched_clock_init(uint64_t normal_base, uint64_t atf_base)
{
normal_time_base += normal_base;
atf_time_base = atf_base;
}
uint64_t sched_clock(void)
{
uint64_t cval;
uint64_t rel_base;
rel_base = read_cntpct_el0() - atf_time_base;
cval = ((rel_base * 1000U) / SYS_COUNTER_FREQ_IN_MHZ)
- normal_time_base;
return cval;
}

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@ -0,0 +1,30 @@
/*
* Copyright (c) 2020, MediaTek Inc. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef MT_TIMER_H
#define MT_TIMER_H
#define SYSTIMER_BASE (0x10017000)
#define CNTCR_REG (SYSTIMER_BASE + 0x0)
#define CNTSR_REG (SYSTIMER_BASE + 0x4)
#define CNTSYS_L_REG (SYSTIMER_BASE + 0x8)
#define CNTSYS_H_REG (SYSTIMER_BASE + 0xc)
#define TIEO_EN (1 << 3)
#define COMP_15_EN (1 << 10)
#define COMP_20_EN (1 << 11)
#define COMP_25_EN (1 << 12)
#define COMP_FEATURE_MASK (COMP_15_EN | COMP_20_EN | COMP_25_EN | TIEO_EN)
#define COMP_15_MASK (COMP_15_EN)
#define COMP_20_MASK (COMP_20_EN | TIEO_EN)
#define COMP_25_MASK (COMP_20_EN | COMP_25_EN)
void sched_clock_init(uint64_t normal_base, uint64_t atf_base);
uint64_t sched_clock(void);
#endif /* MT_TIMER_H */

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@ -10,7 +10,8 @@ MTK_PLAT_SOC := ${MTK_PLAT}/${PLAT}
PLAT_INCLUDES := -I${MTK_PLAT}/common/ \
-I${MTK_PLAT_SOC}/include/ \
-I${MTK_PLAT_SOC}/drivers/ \
-I${MTK_PLAT_SOC}/drivers/gpio/
-I${MTK_PLAT_SOC}/drivers/gpio/ \
-I${MTK_PLAT_SOC}/drivers/timer/
GICV3_SUPPORT_GIC600 := 1
include drivers/arm/gic/v3/gicv3.mk
@ -37,7 +38,8 @@ BL31_SOURCES += common/desc_image_load.c \
${MTK_PLAT_SOC}/plat_topology.c \
${MTK_PLAT_SOC}/plat_mt_gic.c \
${MTK_PLAT_SOC}/plat_mt_cirq.c \
${MTK_PLAT_SOC}/drivers/gpio/mtgpio.c
${MTK_PLAT_SOC}/drivers/gpio/mtgpio.c \
${MTK_PLAT_SOC}/drivers/timer/mt_timer.c
# Configs for A76 and A55