Re: imx: imx8mq: mxc_get_clock for MXC_I2C_CLK is missing

[Peng Fan (OSS)]

On 2021/9/8 21:08, Heiko Thiery wrote:

Hi Peng,

I faced an issue with the I2C bus speed in SPL for the imx8mq. I
figured out that the bus frequency is set to about 1MHz. While digging
into that I found that the clk ID for the I2C is not returned for the
imx8mq correctly.

Can you confirm that this is missing here.

You are right! Thanks for spotting this.

Regards,
Peng.

This is what I added and now it looks better.

diff --git a/arch/arm/mach-imx/imx8m/clock_imx8mq.c
b/arch/arm/mach-imx/imx8m/clock_imx8mq.c
index 60e2218a3c..9e45ffd66b 100644
--- a/arch/arm/mach-imx/imx8m/clock_imx8mq.c
+++ b/arch/arm/mach-imx/imx8m/clock_imx8mq.c
@@ -363,6 +363,12 @@ unsigned int mxc_get_clock(enum mxc_clock clk)
                 return get_root_clk(USDHC1_CLK_ROOT);
         case MXC_ESDHC2_CLK:
                 return get_root_clk(USDHC2_CLK_ROOT);
+       case MXC_I2C_CLK:
+               return get_root_clk(I2C1_CLK_ROOT);
+       case MXC_UART_CLK:
+               return get_root_clk(UART1_CLK_ROOT);
+       case MXC_QSPI_CLK:
+               return get_root_clk(QSPI_CLK_ROOT);
         default:
                 return get_root_clk(clk);
         }