[U-Boot] [PATCH] rockchip: spl: RK3399: add COUNTER_FREQUENCY define to rk3399_common.h

[Philipp Tomsich]

The BootROM of the RK3399 SoC does not initialise the cntfrq_el0 (which
holds the value 0 (zero) on entry into the SPL. This causes the timebase
for U-Boot not to advance (and will cause a hang where a timeout would
be expected... e.g. if something goes wrong during MMC/SD card startup).

This change defines COUNTER_FREQUENCY, which is used by the AArch64 init
code in arch/arm/cpu/armv8/start.S to set up cntfrq_el0 (if necessary).

Signed-off-by: Philipp Tomsich <philipp.tomsich at theobroma-systems.com>
---

 include/configs/rk3399_common.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/configs/rk3399_common.h b/include/configs/rk3399_common.h
index aeee805..c44f8ad 100644
--- a/include/configs/rk3399_common.h
+++ b/include/configs/rk3399_common.h
@@ -19,6 +19,8 @@
 #define CONFIG_SPL_DRIVERS_MISC_SUPPORT
 #define CONFIG_SPL_SERIAL_SUPPORT
 
+#define COUNTER_FREQUENCY               24000000
+
 #define CONFIG_SYS_NS16550_MEM32
 
 #define CONFIG_SYS_TEXT_BASE		0x00200000
-- 
1.9.1