diff options
Diffstat (limited to 'arch/arm/mach-imx/imx8m.c')
| -rw-r--r-- | arch/arm/mach-imx/imx8m.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/imx8m.c b/arch/arm/mach-imx/imx8m.c index 596c4140b3..d044531520 100644 --- a/arch/arm/mach-imx/imx8m.c +++ b/arch/arm/mach-imx/imx8m.c @@ -133,3 +133,29 @@ static int imx8mq_report_hdmi_firmware(void) return 0; } console_initcall(imx8mq_report_hdmi_firmware); + +void imx8m_early_setup_uart_clock(void) +{ + imx8m_ccgr_clock_disable(IMX8M_CCM_CCGR_UART1); + imx8m_ccgr_clock_disable(IMX8M_CCM_CCGR_UART2); + imx8m_ccgr_clock_disable(IMX8M_CCM_CCGR_UART3); + imx8m_ccgr_clock_disable(IMX8M_CCM_CCGR_UART4); + + imx8m_clock_set_target_val(IMX8M_UART1_CLK_ROOT, + IMX8M_CCM_TARGET_ROOTn_ENABLE | + IMX8M_UART1_CLK_ROOT__25M_REF_CLK); + imx8m_clock_set_target_val(IMX8M_UART2_CLK_ROOT, + IMX8M_CCM_TARGET_ROOTn_ENABLE | + IMX8M_UART1_CLK_ROOT__25M_REF_CLK); + imx8m_clock_set_target_val(IMX8M_UART3_CLK_ROOT, + IMX8M_CCM_TARGET_ROOTn_ENABLE | + IMX8M_UART1_CLK_ROOT__25M_REF_CLK); + imx8m_clock_set_target_val(IMX8M_UART4_CLK_ROOT, + IMX8M_CCM_TARGET_ROOTn_ENABLE | + IMX8M_UART1_CLK_ROOT__25M_REF_CLK); + + imx8m_ccgr_clock_enable(IMX8M_CCM_CCGR_UART1); + imx8m_ccgr_clock_enable(IMX8M_CCM_CCGR_UART2); + imx8m_ccgr_clock_enable(IMX8M_CCM_CCGR_UART3); + imx8m_ccgr_clock_enable(IMX8M_CCM_CCGR_UART4); +} |