diff options
| author | Terry Lv <r65388@freescale.com> | 2012-10-30 09:46:53 +0800 |
|---|---|---|
| committer | Terry Lv <r65388@freescale.com> | 2012-10-30 09:46:53 +0800 |
| commit | a7decba6225c7691919ad5798627c970f447da14 (patch) | |
| tree | 159405d4d00ac60cd296b23d819aba3ca35adb25 | |
| parent | c078b850cf22e6cb0754750483d3cc816580cf63 (diff) | |
ENGR00231553: MX6SL: Uncovered an issue for I2C parent clock
We need to check reg bit to decide I2C parent clock.
Signed-off-by: Terry Lv <r65388@freescale.com>
| -rw-r--r-- | cpu/arm_cortexa8/mx6/generic.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/cpu/arm_cortexa8/mx6/generic.c b/cpu/arm_cortexa8/mx6/generic.c index a3d965ccb1..191ab5e187 100644 --- a/cpu/arm_cortexa8/mx6/generic.c +++ b/cpu/arm_cortexa8/mx6/generic.c @@ -212,10 +212,15 @@ static u32 __get_ipg_clk(void) static u32 __get_ipg_per_clk(void) { - u32 podf; + u32 podf, reg; u32 clk_root = __get_ipg_clk(); - podf = __REG(MXC_CCM_CSCMR1) & MXC_CCM_CSCMR1_PERCLK_PODF_MASK; + reg = __REG(MXC_CCM_CSCMR1); +#ifdef CONFIG_MX6SL + if (reg & 0x40) /* PERCLK from 24M OSC */ + clk_root = CONFIG_MX6_HCLK_FREQ; +#endif + podf = reg & MXC_CCM_CSCMR1_PERCLK_PODF_MASK; return clk_root / (podf + 1); } |