[PATCH v2 1/3] clk: imx8mm: Add support for PCIe clocks

[Marek Vasut]

On 4/18/24 7:56 PM, Tim Harvey wrote:
> Add support for PCIe clocks required to enable PCIe support on
> iMX8MM SoC.
> 
> Signed-off-by: Tim Harvey <tharvey at gateworks.com>
> ---
> v2: no changes
> ---
>   drivers/clk/imx/clk-imx8mm.c | 21 +++++++++++++++++++++
>   1 file changed, 21 insertions(+)
> 
> diff --git a/drivers/clk/imx/clk-imx8mm.c b/drivers/clk/imx/clk-imx8mm.c
> index b5c253e49663..c2f01b385201 100644
> --- a/drivers/clk/imx/clk-imx8mm.c
> +++ b/drivers/clk/imx/clk-imx8mm.c
> @@ -66,6 +66,15 @@ static const char *imx8mm_i2c3_sels[] = {"clock-osc-24m", "sys_pll1_160m", "sys_
>   static const char *imx8mm_i2c4_sels[] = {"clock-osc-24m", "sys_pll1_160m", "sys_pll2_50m", "sys_pll3_out", "audio_pll1_out",
>   					 "video_pll1_out", "audio_pll2_out", "sys_pll1_133m", };
>   
> +static const char *imx8mm_pcie1_ctrl_sels[] = {"clock-osc-24m", "sys_pll2_250m", "sys_pll2_200m", "sys_pll1_266m",
> +					       "sys_pll1_800m", "sys_pll2_500m", "sys_pll2_333m", "sys_pll3_out", };
> +
> +static const char *imx8mm_pcie1_phy_sels[] = {"clock-osc-24m", "sys_pll2_100m", "sys_pll2_500m", "clk_ext1", "clk_ext2",
> +					      "clk_ext3", "clk_ext4", "sys_pll1_400m", };
> +
> +static const char *imx8mm_pcie1_aux_sels[] = {"clock-osc-24m", "sys_pll2_200m", "sys_pll2_50m", "sys_pll3_out",
> +					      "sys_pll2_100m", "sys_pll1_80m", "sys_pll1_160m", "sys_pll1_200m", };
> +
>   #ifndef CONFIG_SPL_BUILD
>   static const char *imx8mm_pwm1_sels[] = {"clock-osc-24m", "sys_pll2_100m", "sys_pll1_160m", "sys_pll1_40m",
>   					 "sys_pll3_out", "clk_ext1", "sys_pll1_80m", "video_pll1_out", };
> @@ -256,6 +265,15 @@ static int imx8mm_clk_probe(struct udevice *dev)
>   		imx8m_clk_composite("usb_bus", imx8mm_usb_bus_sels, base + 0x8b80));
>   
>   	/* IP */
> +	clk_dm(IMX8MM_CLK_PCIE1_CTRL,
> +	       imx8m_clk_composite("pcie1_ctrl", imx8mm_pcie1_ctrl_sels,
> +				   base + 0xa300));
> +	clk_dm(IMX8MM_CLK_PCIE1_PHY,
> +	       imx8m_clk_composite("pcie1_phy", imx8mm_pcie1_phy_sels,
> +				   base + 0xa380));
> +	clk_dm(IMX8MM_CLK_PCIE1_AUX,
> +	       imx8m_clk_composite("pcie1_aux", imx8mm_pcie1_aux_sels,
> +				   base + 0xa400));

Maybe this should be behind IS_ENABLED() like the SPI clock to avoid 
growth of SPL ?