When an I2C clock is enabled inside enable_i2c_clk() the clock rate is configured as PLL_SYS_MAIN_120M_CLK / 2 = 60MHz.
Currently, the I2C clock is retrieved from I2C1_CLK_ROOT, which may not be the one that was enabled.
As there is no clock driver for the imx7d, it is better to return 60MHz for the I2C clock.
This provides a workaround for the imx7d-pico board, where I2C4 is connected to the PMIC.
With this change, it is possible to convert the imx7d-pico board to DM_I2C and DM_PMIC.
Signed-off-by: Fabio Estevam festevam@denx.de --- arch/arm/mach-imx/mx7/clock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mach-imx/mx7/clock.c b/arch/arm/mach-imx/mx7/clock.c index 88f6fe0274..4e232385af 100644 --- a/arch/arm/mach-imx/mx7/clock.c +++ b/arch/arm/mach-imx/mx7/clock.c @@ -502,7 +502,7 @@ unsigned int mxc_get_clock(enum mxc_clock clk) case MXC_IPG_CLK: return get_ipg_clk(); case MXC_I2C_CLK: - return get_root_clk(I2C1_CLK_ROOT); + return 60000000; case MXC_UART_CLK: return get_root_clk(UART1_CLK_ROOT); case MXC_CSPI_CLK: