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-rw-r--r--arch/arm/mach-rockchip/Kconfig1
-rw-r--r--arch/arm/mach-rockchip/rockchip.c27
2 files changed, 28 insertions, 0 deletions
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index ac5803cac98d..5078932c1683 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -11,6 +11,7 @@ config ARCH_ROCKCHIP
select HAVE_ARM_SCU if SMP
select HAVE_ARM_TWD if SMP
select DW_APB_TIMER_OF
+ select ROCKCHIP_TIMER
select ARM_GLOBAL_TIMER
select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
help
diff --git a/arch/arm/mach-rockchip/rockchip.c b/arch/arm/mach-rockchip/rockchip.c
index f70861174cbb..d360ec044b66 100644
--- a/arch/arm/mach-rockchip/rockchip.c
+++ b/arch/arm/mach-rockchip/rockchip.c
@@ -19,12 +19,38 @@
#include <linux/init.h>
#include <linux/of_platform.h>
#include <linux/irqchip.h>
+#include <linux/clk-provider.h>
+#include <linux/clocksource.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/hardware/cache-l2x0.h>
#include "core.h"
#include "pm.h"
+#define RK3288_GRF_SOC_CON0 0x244
+
+static void __init rockchip_timer_init(void)
+{
+ if (of_machine_is_compatible("rockchip,rk3288")) {
+ struct regmap *grf;
+
+ /*
+ * Disable auto jtag/sdmmc switching that causes issues
+ * with the mmc controllers making them unreliable
+ */
+ grf = syscon_regmap_lookup_by_compatible("rockchip,rk3288-grf");
+ if (!IS_ERR(grf))
+ regmap_write(grf, RK3288_GRF_SOC_CON0, 0x10000000);
+ else
+ pr_err("rockchip: could not get grf syscon\n");
+ }
+
+ of_clk_init(NULL);
+ clocksource_of_init();
+}
+
static void __init rockchip_dt_init(void)
{
rockchip_suspend_init();
@@ -44,6 +70,7 @@ static const char * const rockchip_board_dt_compat[] = {
DT_MACHINE_START(ROCKCHIP_DT, "Rockchip (Device Tree)")
.l2c_aux_val = 0,
.l2c_aux_mask = ~0,
+ .init_time = rockchip_timer_init,
.dt_compat = rockchip_board_dt_compat,
.init_machine = rockchip_dt_init,
MACHINE_END