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microblaze: timer: Use CLKSRC_OF initialization

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Simplify timer initialization and prepare the driver
for moving to drivers/clocksource folder.
Also remove system-timer property from binding because
the name is too generic.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Michal Simek 2013-08-27 11:13:29 +02:00
parent 144f5c19ff
commit 4bcd943ec8
3 changed files with 11 additions and 13 deletions
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1
arch/microblaze/Kconfig
View file

@ -29,6 +29,7 @@ config MICROBLAZE
select GENERIC_IDLE_POLL_SETUP
select MODULES_USE_ELF_RELA
select CLONE_BACKWARDS3
select CLKSRC_OF
config SWAP
def_bool n

6
arch/microblaze/kernel/setup.c
View file

@ -9,6 +9,7 @@
*/
#include <linux/init.h>
#include <linux/clocksource.h>
#include <linux/string.h>
#include <linux/seq_file.h>
#include <linux/cpu.h>
@ -192,6 +193,11 @@ void __init machine_early_init(const char *cmdline, unsigned int ram,
per_cpu(CURRENT_SAVE, 0) = (unsigned long)current;
}
void __init time_init(void)
{
clocksource_of_init();
}
#ifdef CONFIG_DEBUG_FS
struct dentry *of_debugfs_root;

17
arch/microblaze/kernel/timer.c
View file

@ -238,24 +238,12 @@ static int __init microblaze_clocksource_init(void)
*/
static int timer_initialized;
void __init time_init(void)
static void __init xilinx_timer_init(struct device_node *timer)
{
u32 irq;
u32 timer_num = 1;
struct device_node *timer = NULL;
const void *prop;
prop = of_get_property(of_chosen, "system-timer", NULL);
if (prop)
timer = of_find_node_by_phandle(be32_to_cpup(prop));
else
pr_info("No chosen timer found, using default\n");
if (!timer)
timer = of_find_compatible_node(NULL, NULL,
"xlnx,xps-timer-1.00.a");
BUG_ON(!timer);
timer_baseaddr = be32_to_cpup(of_get_property(timer, "reg", NULL));
timer_baseaddr = (unsigned long) ioremap(timer_baseaddr, PAGE_SIZE);
irq = irq_of_parse_and_map(timer, 0);
@ -297,3 +285,6 @@ unsigned long long notrace sched_clock(void)
}
return 0;
}
CLOCKSOURCE_OF_DECLARE(xilinx_timer, "xlnx,xps-timer-1.00.a",
xilinx_timer_init);