From: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Date: Thu, 22 Jun 2017 21:31:55 +0000 (+0200)
Subject: rockchip: rk3368: spl: define COUNTER_FREQUENCY to 24MHz
X-Git-Tag: v2025.01-rc5-pxa1908~6047^2~59
X-Git-Url: http://git.dujemihanovic.xyz/img/static/%7B%7B%20%24image.RelPermalink%20%7D%7D?a=commitdiff_plain;h=e78b04f9d52642a7284c7df7dbe46651af0c4065;p=u-boot.git

rockchip: rk3368: spl: define COUNTER_FREQUENCY to 24MHz

The BootROM of the RK3368 Boot ROM does not initialise cntfrq_el0.
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 the counter-frequency is not correctly set up, the calculation of
delays using the ARMv8 generic timer can not work correctly.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---

diff --git a/include/configs/rk3368_common.h b/include/configs/rk3368_common.h
index b0c858c693..ddb7df0b66 100644
--- a/include/configs/rk3368_common.h
+++ b/include/configs/rk3368_common.h
@@ -21,6 +21,8 @@
 #define CONFIG_SYS_CBSIZE		1024
 #define CONFIG_SKIP_LOWLEVEL_INIT
 
+#define COUNTER_FREQUENCY               24000000
+
 #define CONFIG_SYS_NS16550_MEM32
 
 #define CONFIG_SYS_TEXT_BASE		0x00200000