From acea1238258eac8c298d3754032cadd4d26193c6 Mon Sep 17 00:00:00 2001 From: Kever Yang Date: Tue, 9 Jul 2019 22:00:23 +0800 Subject: rockchip: rk322x: use ARM arch timer instead of rk_timer We prefer to use ARM arch timer instead of rockchip timer, so that we are using the same timer for SPL, U-Boot and Kernel, which will make things simple and easy to track to boot time. Signed-off-by: Kever Yang --- arch/arm/mach-rockchip/rk322x-board-spl.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) (limited to 'arch/arm/mach-rockchip/rk322x-board-spl.c') diff --git a/arch/arm/mach-rockchip/rk322x-board-spl.c b/arch/arm/mach-rockchip/rk322x-board-spl.c index c9b41c62c0..c825e31c02 100644 --- a/arch/arm/mach-rockchip/rk322x-board-spl.c +++ b/arch/arm/mach-rockchip/rk322x-board-spl.c @@ -19,6 +19,31 @@ u32 spl_boot_mode(const u32 boot_device) return MMCSD_MODE_RAW; } +#define TIMER_LOAD_COUNT_L 0x00 +#define TIMER_LOAD_COUNT_H 0x04 +#define TIMER_CONTROL_REG 0x10 +#define TIMER_EN 0x1 +#define TIMER_FMODE BIT(0) +#define TIMER_RMODE BIT(1) + +void rockchip_stimer_init(void) +{ + /* If Timer already enabled, don't re-init it */ + u32 reg = readl(CONFIG_ROCKCHIP_STIMER_BASE + TIMER_CONTROL_REG); + + if (reg & TIMER_EN) + return; + + asm volatile("mcr p15, 0, %0, c14, c0, 0" + : : "r"(COUNTER_FREQUENCY)); + + writel(0, CONFIG_ROCKCHIP_STIMER_BASE + TIMER_CONTROL_REG); + writel(0xffffffff, CONFIG_ROCKCHIP_STIMER_BASE); + writel(0xffffffff, CONFIG_ROCKCHIP_STIMER_BASE + 4); + writel(TIMER_EN | TIMER_FMODE, CONFIG_ROCKCHIP_STIMER_BASE + + TIMER_CONTROL_REG); +} + #define SGRF_DDR_CON0 0x10150000 void board_init_f(ulong dummy) { @@ -31,6 +56,11 @@ void board_init_f(ulong dummy) } preloader_console_init(); + /* Init secure timer */ + rockchip_stimer_init(); + /* Init ARM arch timer in arch/arm/cpu/armv7/arch_timer.c */ + timer_init(); + /* Disable the ddr secure region setting to make it non-secure */ rk_clrreg(SGRF_DDR_CON0, 0x4000); } -- cgit