* [U-Boot] [PATCH] powerpc/mpc85xx: Fix the I2C bus speed error on p1022
@ 2013-09-06 2:45 Yuantian.Tang at freescale.com
2013-09-09 5:47 ` Heiko Schocher
0 siblings, 1 reply; 2+ messages in thread
From: Yuantian.Tang at freescale.com @ 2013-09-06 2:45 UTC (permalink / raw)
To: u-boot
From: Tang Yuantian <yuantian.tang@freescale.com>
The source clock frequency of I2C bus on p1022 is the platform(CCB)
clock, not CCB/2. The wrong source clock frequency leads to wrong
I2C bus speed setting. so, fixed it.
Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
---
fix bug: ENGR00274019
arch/powerpc/cpu/mpc85xx/speed.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/cpu/mpc85xx/speed.c b/arch/powerpc/cpu/mpc85xx/speed.c
index 65cc7c0..75c92cc 100644
--- a/arch/powerpc/cpu/mpc85xx/speed.c
+++ b/arch/powerpc/cpu/mpc85xx/speed.c
@@ -415,7 +415,8 @@ int get_clocks (void)
* AN2919.
*/
#if defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
- defined(CONFIG_MPC8560) || defined(CONFIG_MPC8555)
+ defined(CONFIG_MPC8560) || defined(CONFIG_MPC8555) || \
+ defined(CONFIG_P1022)
gd->arch.i2c1_clk = sys_info.freq_systembus;
#elif defined(CONFIG_MPC8544)
/*
--
1.8.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [U-Boot] [PATCH] powerpc/mpc85xx: Fix the I2C bus speed error on p1022
2013-09-06 2:45 [U-Boot] [PATCH] powerpc/mpc85xx: Fix the I2C bus speed error on p1022 Yuantian.Tang at freescale.com
@ 2013-09-09 5:47 ` Heiko Schocher
0 siblings, 0 replies; 2+ messages in thread
From: Heiko Schocher @ 2013-09-09 5:47 UTC (permalink / raw)
To: u-boot
Hello Yuantian.Tang at freescale.com,
Am 06.09.2013 04:45, schrieb Yuantian.Tang at freescale.com:
> From: Tang Yuantian<yuantian.tang@freescale.com>
>
> The source clock frequency of I2C bus on p1022 is the platform(CCB)
> clock, not CCB/2. The wrong source clock frequency leads to wrong
> I2C bus speed setting. so, fixed it.
>
> Signed-off-by: Tang Yuantian<Yuantian.Tang@freescale.com>
> ---
> fix bug: ENGR00274019
>
> arch/powerpc/cpu/mpc85xx/speed.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
Applied to u-boot-i2c.git
Thanks!
bye,
Heiko
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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2013-09-06 2:45 [U-Boot] [PATCH] powerpc/mpc85xx: Fix the I2C bus speed error on p1022 Yuantian.Tang at freescale.com
2013-09-09 5:47 ` Heiko Schocher
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