Re: [U-Boot-Users] Resubmit : [PATCH] Correct ARM Versatile Timer Initialization
On 06:30 Mon 04 Aug , Gururaja Hebbar K R wrote:
- According to ARM Dual-Timer Module (SP804) TRM (ARM DDI0271),
-- Timer Value Register @ TIMER Base + 4 is Read-only.
-- Prescale Value (Bits 3-2 of TIMER Control register)
can only be one of 00,01,10. 11 is undefined.
Signed-off-by: Gururaja Hebbar [EMAIL PROTECTED]
---
cpu/arm926ejs/versatile/timer.c |3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/cpu/arm926ejs/versatile/timer.c b/cpu/arm926ejs/versatile/timer.c
index 32872d2..9659b67 100644
--- a/cpu/arm926ejs/versatile/timer.c
+++ b/cpu/arm926ejs/versatile/timer.c
@@ -50,8 +50,7 @@ static ulong lastdec;
int timer_init (void)
{
*(volatile ulong *)(CFG_TIMERBASE + 0) = CFG_TIMER_RELOAD; /*
TimerLoad */
- *(volatile ulong *)(CFG_TIMERBASE + 4) = CFG_TIMER_RELOAD; /*
TimerValue */
- *(volatile ulong *)(CFG_TIMERBASE + 8) = 0x8C;
+ *(volatile ulong *)(CFG_TIMERBASE + 8) = 0x80;
according to datasheet for the register TimerXControl
we are supposed to not modify the bits [31:8] and [4]
so we are suppose to read the register and modify only the others
register.
Best Regards,
J.
-
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Re: [U-Boot-Users] Resubmit : [PATCH] Correct ARM Versatile Timer Initialization
In message [EMAIL PROTECTED] you wrote:
Signed-off-by: Gururaja Hebbar [EMAIL PROTECTED]
---
cpu/arm926ejs/versatile/timer.c |3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/cpu/arm926ejs/versatile/timer.c
b/cpu/arm926ejs/versatile/timer.c
index 32872d2..9659b67 100644
--- a/cpu/arm926ejs/versatile/timer.c
+++ b/cpu/arm926ejs/versatile/timer.c
@@ -50,8 +50,7 @@ static ulong lastdec;
int timer_init (void)
{
*(volatile ulong *)(CFG_TIMERBASE + 0) = CFG_TIMER_RELOAD;
/* TimerLoad */
^
- *(volatile ulong *)(CFG_TIMERBASE + 4) = CFG_TIMER_RELOAD;
/* TimerValue */
^
Just for the record: this patch is once more corrupted due to line
wrapping by the mailer.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: [EMAIL PROTECTED]
There are three ways to get something done: do it yourself, hire
someone, or forbid your kids to do it.
-
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