[PATCH 2/8] ARM/Samsung: adapt the generic timer driver to support the S3C6410 SoC

Juergen Beisert jbe at pengutronix.de
Sat Jul 21 06:04:27 EDT 2012


The S3C64XX SoC has a real 32 bit counter, but almost the same style of
registers. It's enough to change the parameters, to get the routines work on
this SoC.

TODO: what about the S5P SoCs?

Signed-off-by: Juergen Beisert <jbe at pengutronix.de>
---
 arch/arm/mach-samsung/s3c-timer.c |   17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-samsung/s3c-timer.c b/arch/arm/mach-samsung/s3c-timer.c
index 6665c8c..271f97d 100644
--- a/arch/arm/mach-samsung/s3c-timer.c
+++ b/arch/arm/mach-samsung/s3c-timer.c
@@ -37,11 +37,20 @@
 #define S3C_TCNTB4 (S3C_TIMER_BASE + 0x3c)
 #define S3C_TCNTO4 (S3C_TIMER_BASE + 0x40)
 
-#define TIMER_WIDTH 16
-#define TIMER_SHIFT 10
-#define PRE_MUX 3
-#define PRE_MUX_ADD 1
+#ifdef CONFIG_ARCH_S3C24xx
+# define TIMER_WIDTH 16
+# define TIMER_SHIFT 10
+# define PRE_MUX 3
+# define PRE_MUX_ADD 1
 static const uint32_t max = 0x0000ffff;
+#endif
+#ifdef CONFIG_ARCH_S3C64xx
+# define TIMER_WIDTH 32
+# define TIMER_SHIFT 10
+# define PRE_MUX 4
+# define PRE_MUX_ADD 0
+static const uint32_t max = ~0;
+#endif
 
 static void s3c_init_t4_clk_source(void)
 {
-- 
1.7.10.4




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