rockchip: rk3288: 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 <kever.yang@rock-chips.com>

diff --git a/arch/arm/mach-rockchip/Makefile b/arch/arm/mach-rockchip/Makefile
index 2a0db0a..3e3aa1c 100644 (file)
--- a/arch/arm/mach-rockchip/Makefile
+++ b/arch/arm/mach-rockchip/Makefile
@@ -42,7 +42,7 @@ endif
 obj-$(CONFIG_$(SPL_TPL_)RAM) += sdram_common.o
 
 ifndef CONFIG_ARM64
-ifeq ($(CONFIG_ROCKCHIP_RK3188)$(CONFIG_ROCKCHIP_RK322X)$(CONFIG_ROCKCHIP_RK3036),)
+ifeq ($(CONFIG_ROCKCHIP_RK3188)$(CONFIG_ROCKCHIP_RK322X)$(CONFIG_ROCKCHIP_RK3036)$(CONFIG_ROCKCHIP_RK3288),)
 obj-y += rk_timer.o
 endif
 endif

diff --git a/arch/arm/mach-rockchip/rk3288-board-spl.c b/arch/arm/mach-rockchip/rk3288-board-spl.c
index 3869de9..c2e1681 100644 (file)
--- a/arch/arm/mach-rockchip/rk3288-board-spl.c
+++ b/arch/arm/mach-rockchip/rk3288-board-spl.c
@@ -22,7 +22,6 @@
 #include <asm/arch-rockchip/sdram.h>
 #include <asm/arch-rockchip/sdram_common.h>
 #include <asm/arch-rockchip/sys_proto.h>
-#include <asm/arch-rockchip/timer.h>
 #include <dm/root.h>
 #include <dm/test.h>
 #include <dm/util.h>
@@ -108,6 +107,31 @@ __weak int arch_cpu_init(void)
        return 0;
 }
 
+#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);
+}
+
 void board_init_f(ulong dummy)
 {
        struct udevice *dev;
@@ -131,7 +155,11 @@ void board_init_f(ulong dummy)
                hang();
        }
 
-       rockchip_timer_init();
+       /* Init secure timer */
+       rockchip_stimer_init();
+       /* Init ARM arch timer in arch/arm/cpu/armv7/arch_timer.c */
+       timer_init();
+
        arch_cpu_init();
 
        ret = rockchip_get_clk(&dev);

diff --git a/arch/arm/mach-rockchip/rk3288-board-tpl.c b/arch/arm/mach-rockchip/rk3288-board-tpl.c
index 5adbe92..96de792 100644 (file)
--- a/arch/arm/mach-rockchip/rk3288-board-tpl.c
+++ b/arch/arm/mach-rockchip/rk3288-board-tpl.c
@@ -12,7 +12,25 @@
 #include <asm/io.h>
 #include <asm/arch-rockchip/bootrom.h>
 #include <asm/arch-rockchip/clock.h>
-#include <asm/arch-rockchip/timer.h>
+
+#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)
+{
+       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);
+}
 
 void board_init_f(ulong dummy)
 {
@@ -36,7 +54,10 @@ void board_init_f(ulong dummy)
                hang();
        }
 
-       rockchip_timer_init();
+       /* Init secure timer */
+       rockchip_stimer_init();
+       /* Init ARM arch timer in arch/arm/cpu/armv7/arch_timer.c */
+       timer_init();
 
        ret = rockchip_get_clk(&dev);
        if (ret) {

diff --git a/include/configs/rk3288_common.h b/include/configs/rk3288_common.h
index 06073cb..5472a90 100644 (file)
--- a/include/configs/rk3288_common.h
+++ b/include/configs/rk3288_common.h
@@ -13,9 +13,10 @@
 #define CONFIG_SYS_MALLOC_LEN          (32 << 20)
 #define CONFIG_SYS_CBSIZE              1024
 
-#define CONFIG_SYS_TIMER_RATE          (24 * 1000 * 1000)
-#define        CONFIG_SYS_TIMER_BASE           0xff810020 /* TIMER7 */
-#define CONFIG_SYS_TIMER_COUNTER       (CONFIG_SYS_TIMER_BASE + 8)
+#define CONFIG_ROCKCHIP_STIMER_BASE    0xff810020
+#define COUNTER_FREQUENCY              24000000
+#define CONFIG_SYS_ARCH_TIMER
+#define CONFIG_SYS_HZ_CLOCK            24000000
 
 #ifdef CONFIG_SPL_ROCKCHIP_BACK_TO_BROM
 /* Bootrom will load u-boot binary to 0x0 once return from SPL */