diff options
| author | Peng Fan <Peng.Fan@freescale.com> | 2015-07-11 11:38:43 +0800 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2015-08-02 10:43:45 +0200 |
| commit | e1c2d68b3958f6aaf20f4ad42ed45de03e22300d (patch) | |
| tree | 64fa9f024a260924cfd2a5b2cfe2a90f7032b6e9 /arch/arm/cpu/armv7/mx6/clock.c | |
| parent | d0acd99334a74b345429ab81b2039e2b4ede7208 (diff) | |
imx: mx6: ccm: Change the clock settings for i.MX6QP
Since i.MX6QP changes some CCM registers, so modify the clocks settings to
follow the hardware changes.
In c files, use runtime check and discard #ifdef.
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Signed-off-by: Ye.Li <B37916@freescale.com>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'arch/arm/cpu/armv7/mx6/clock.c')
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/clock.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c index b4618989d9..cd4bfdd9aa 100644 --- a/arch/arm/cpu/armv7/mx6/clock.c +++ b/arch/arm/cpu/armv7/mx6/clock.c @@ -310,10 +310,12 @@ static u32 get_ipg_per_clk(void) u32 reg, perclk_podf; reg = __raw_readl(&imx_ccm->cscmr1); -#if (defined(CONFIG_MX6SL) || defined(CONFIG_MX6SX)) - if (reg & MXC_CCM_CSCMR1_PER_CLK_SEL_MASK) - return MXC_HCLK; /* OSC 24Mhz */ -#endif + if (is_cpu_type(MXC_CPU_MX6SL) || is_cpu_type(MXC_CPU_MX6SX) || + is_mx6dqp()) { + if (reg & MXC_CCM_CSCMR1_PER_CLK_SEL_MASK) + return MXC_HCLK; /* OSC 24Mhz */ + } + perclk_podf = reg & MXC_CCM_CSCMR1_PERCLK_PODF_MASK; return get_ipg_clk() / (perclk_podf + 1); @@ -324,10 +326,13 @@ static u32 get_uart_clk(void) u32 reg, uart_podf; u32 freq = decode_pll(PLL_USBOTG, MXC_HCLK) / 6; /* static divider */ reg = __raw_readl(&imx_ccm->cscdr1); -#if (defined(CONFIG_MX6SL) || defined(CONFIG_MX6SX)) - if (reg & MXC_CCM_CSCDR1_UART_CLK_SEL) - freq = MXC_HCLK; -#endif + + if (is_cpu_type(MXC_CPU_MX6SL) || is_cpu_type(MXC_CPU_MX6SX) || + is_mx6dqp()) { + if (reg & MXC_CCM_CSCDR1_UART_CLK_SEL) + freq = MXC_HCLK; + } + reg &= MXC_CCM_CSCDR1_UART_CLK_PODF_MASK; uart_podf = reg >> MXC_CCM_CSCDR1_UART_CLK_PODF_OFFSET; @@ -339,8 +344,13 @@ static u32 get_cspi_clk(void) u32 reg, cspi_podf; reg = __raw_readl(&imx_ccm->cscdr2); - reg &= MXC_CCM_CSCDR2_ECSPI_CLK_PODF_MASK; - cspi_podf = reg >> MXC_CCM_CSCDR2_ECSPI_CLK_PODF_OFFSET; + cspi_podf = (reg & MXC_CCM_CSCDR2_ECSPI_CLK_PODF_MASK) >> + MXC_CCM_CSCDR2_ECSPI_CLK_PODF_OFFSET; + + if (is_mx6dqp()) { + if (reg & MXC_CCM_CSCDR2_ECSPI_CLK_SEL_MASK) + return MXC_HCLK / (cspi_podf + 1); + } return decode_pll(PLL_USBOTG, MXC_HCLK) / (8 * (cspi_podf + 1)); } |