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| author | Terry Lv <r65388@freescale.com> | 2012-10-30 09:46:53 +0800 |
|---|---|---|
| committer | Terry Lv <r65388@freescale.com> | 2012-10-30 09:52:48 +0800 |
| commit | 6be77a3831084293070bd95e57164a8b0d3ddd09 (patch) | |
| tree | 4b5047580afdb1cf9da76fe06decd3cc42febce8 | |
| parent | ce91cea872f6b8d079d3a54f0d1e0647be07f91b (diff) | |
| download | u-boot-imx-6be77a3831084293070bd95e57164a8b0d3ddd09.zip u-boot-imx-6be77a3831084293070bd95e57164a8b0d3ddd09.tar.gz u-boot-imx-6be77a3831084293070bd95e57164a8b0d3ddd09.tar.bz2 | |
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 6a98d04..9508284 100644 --- a/cpu/arm_cortexa8/mx6/generic.c +++ b/cpu/arm_cortexa8/mx6/generic.c @@ -209,10 +209,15 @@ 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); } |