Finish conversion of CONFIG_SYS_CLK_FREQ to Kconfig
In order to finish moving this symbol to Kconfig for all platforms, we
need to do a few more things. First, for all platforms that define this
to a function, introduce CONFIG_DYNAMIC_SYS_CLK_FREQ, similar to
CONFIG_DYNAMIC_DDR_CLK_FREQ and populate clock_legacy.h. This entails
also switching all users from CONFIG_SYS_CLK_FREQ to get_board_sys_clk()
and updating a few preprocessor tests.
With that done, all platforms that define a value here can be converted
to Kconfig, and a fall-back of zero is sufficiently safe to use (and
what is used today in cases where code may or may not have this
available). Make sure that code which calls this function includes
<clock_legacy.h> to get the prototype.
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/xtensa/lib/time.c b/arch/xtensa/lib/time.c
index 3a02c38..1c927d2 100644
--- a/arch/xtensa/lib/time.c
+++ b/arch/xtensa/lib/time.c
@@ -4,6 +4,7 @@
*/
#include <common.h>
+#include <clock_legacy.h>
#include <time.h>
#include <asm/global_data.h>
#include <linux/delay.h>
@@ -51,7 +52,7 @@
void __udelay(unsigned long usec)
{
ulong lo, hi, i;
- ulong mhz = CONFIG_SYS_CLK_FREQ / 1000000;
+ ulong mhz = get_board_sys_clk() / 1000000;
/* Scale to support full 32-bit usec range */
@@ -74,7 +75,7 @@
#if XCHAL_HAVE_CCOUNT
register ulong ccount;
__asm__ volatile ("rsr %0, CCOUNT" : "=a"(ccount));
- return ccount / (CONFIG_SYS_CLK_FREQ / CONFIG_SYS_HZ) - base;
+ return ccount / (get_board_sys_clk() / CONFIG_SYS_HZ) - base;
#else
/*
* Add at least the overhead of this call (in cycles).
@@ -85,7 +86,7 @@
*/
fake_ccount += 20;
- return fake_ccount / (CONFIG_SYS_CLK_FREQ / CONFIG_SYS_HZ) - base;
+ return fake_ccount / (get_board_sys_clk() / CONFIG_SYS_HZ) - base;
#endif
}
@@ -114,6 +115,6 @@
unsigned long ccount;
__asm__ volatile ("rsr %0, CCOUNT" : "=a"(ccount));
- return ccount / (CONFIG_SYS_CLK_FREQ / 1000000);
+ return ccount / (get_board_sys_clk() / 1000000);
}
#endif