From: Stefan Agner stefan.agner@toradex.com
The i.MX 6UL/ULL feature a Cortex-A7 CPU which suppor the ARM generic timer. This change makes use of the ARM generic timer in U-Boot.
This is crucial to make the ARM generic timers usable in Linux since timer_init() initalizes the system counter module, which is necessary to use the generic timers CP15 registers.
Signed-off-by: Stefan Agner stefan.agner@toradex.com Reviewed-by: Fabio Estevam fabio.estevam@nxp.com ---
Changes in v2: None
arch/arm/include/asm/arch-mx6/imx-regs.h | 1 + arch/arm/mach-imx/Makefile | 2 +- arch/arm/mach-imx/mx6/Kconfig | 4 +++- include/configs/mx6_common.h | 5 ++++- 4 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/arch/arm/include/asm/arch-mx6/imx-regs.h b/arch/arm/include/asm/arch-mx6/imx-regs.h index 4be7aab18a..48ce0edd06 100644 --- a/arch/arm/include/asm/arch-mx6/imx-regs.h +++ b/arch/arm/include/asm/arch-mx6/imx-regs.h @@ -291,6 +291,7 @@ #endif #define IP2APB_TZASC1_BASE_ADDR (AIPS2_OFF_BASE_ADDR + 0x50000) #if (defined(CONFIG_MX6UL) || defined(CONFIG_MX6ULL)) +#define SCTR_BASE_ADDR (AIPS2_OFF_BASE_ADDR + 0x5C000) #define QSPI0_BASE_ADDR (AIPS2_OFF_BASE_ADDR + 0x60000) #define UART6_BASE_ADDR (AIPS2_OFF_BASE_ADDR + 0x7C000) #elif defined(CONFIG_MX6SX) diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile index 9322c1ce83..d7966cfd4a 100644 --- a/arch/arm/mach-imx/Makefile +++ b/arch/arm/mach-imx/Makefile @@ -22,7 +22,6 @@ endif ifeq ($(SOC),$(filter $(SOC),mx7)) obj-y += cpu.o obj-$(CONFIG_SYS_I2C_MXC) += i2c-mxv7.o -obj-$(CONFIG_SYSCOUNTER_TIMER) += syscounter.o endif ifeq ($(SOC),$(filter $(SOC),mx6 mx7)) obj-y += cache.o init.o @@ -31,6 +30,7 @@ obj-$(CONFIG_IMX_VIDEO_SKIP) += video.o obj-$(CONFIG_IMX_RDC) += rdc-sema.o obj-$(CONFIG_IMX_BOOTAUX) += imx_bootaux.o obj-$(CONFIG_SECURE_BOOT) += hab.o +obj-$(CONFIG_SYSCOUNTER_TIMER) += syscounter.o endif ifeq ($(SOC),$(filter $(SOC),mx7ulp)) obj-y += cache.o diff --git a/arch/arm/mach-imx/mx6/Kconfig b/arch/arm/mach-imx/mx6/Kconfig index 1af60df8d8..86b80ca576 100644 --- a/arch/arm/mach-imx/mx6/Kconfig +++ b/arch/arm/mach-imx/mx6/Kconfig @@ -9,7 +9,7 @@ config MX6_SMP
config MX6 select ARM_ERRATA_743622 if !MX6UL && !MX6ULL - select GPT_TIMER + select GPT_TIMER if !MX6UL && !MX6ULL bool default y imply CMD_FUSE @@ -54,6 +54,7 @@ config MX6UL select HAS_CAAM select SYS_L2CACHE_OFF select ROM_UNIFIED_SECTIONS + select SYSCOUNTER_TIMER bool
config MX6UL_LITESOM @@ -76,6 +77,7 @@ config MX6UL_OPOS6UL config MX6ULL select SYS_L2CACHE_OFF select ROM_UNIFIED_SECTIONS + select SYSCOUNTER_TIMER bool
config MX6_DDRCAL diff --git a/include/configs/mx6_common.h b/include/configs/mx6_common.h index 59e6daea62..ddc645c136 100644 --- a/include/configs/mx6_common.h +++ b/include/configs/mx6_common.h @@ -7,7 +7,10 @@ #ifndef __MX6_COMMON_H #define __MX6_COMMON_H
-#if !(defined(CONFIG_MX6UL) || defined(CONFIG_MX6ULL)) +#if (defined(CONFIG_MX6UL) || defined(CONFIG_MX6ULL)) +#define CONFIG_SC_TIMER_CLK 8000000 /* 8Mhz */ +#define COUNTER_FREQUENCY CONFIG_SC_TIMER_CLK +#else #ifndef CONFIG_SYS_L2CACHE_OFF #define CONFIG_SYS_L2_PL310 #define CONFIG_SYS_PL310_BASE L2_PL310_BASE