From: Michael Trimarchi michael@amarulasolutions.com
This commit ensures that critical clock paths are not disabled during reparent and set_rate operations within the clock framework, paving the way for the inclusion of new features.
Signed-off-by: Michael Trimarchi michael@amarulasolutions.com Signed-off-by: Dario Binacchi dario.binacchi@amarulasolutions.com ---
drivers/clk/imx/clk-imx8mn.c | 26 +++++++++++++++++++++----- 1 file changed, 21 insertions(+), 5 deletions(-)
diff --git a/drivers/clk/imx/clk-imx8mn.c b/drivers/clk/imx/clk-imx8mn.c index 125215e84f41..c96a2ebaa19a 100644 --- a/drivers/clk/imx/clk-imx8mn.c +++ b/drivers/clk/imx/clk-imx8mn.c @@ -29,10 +29,19 @@ static const char * const imx8mn_a53_sels[] = {"clock-osc-24m", "arm_pll_out", " "sys_pll2_1000m", "sys_pll1_800m", "sys_pll1_400m", "audio_pll1_out", "sys_pll3_out", };
+static const char * const imx8mn_noc_sels[] = {"osc_24m", "sys_pll1_800m", "sys_pll3_out", + "sys_pll2_1000m", "sys_pll2_500m", "audio_pll1_out", + "video_pll_out", "audio_pll2_out", }; + static const char * const imx8mn_ahb_sels[] = {"clock-osc-24m", "sys_pll1_133m", "sys_pll1_800m", "sys_pll1_400m", "sys_pll2_125m", "sys_pll3_out", "audio_pll1_out", "video_pll_out", };
+static const char * const imx8mn_main_axi_sels[] = {"osc_24m", "sys_pll2_333m", "sys_pll1_800m", + "sys_pll2_250m", "sys_pll2_1000m", + "audio_pll1_out", "video_pll_out", + "sys_pll1_100m",}; + static const char * const imx8mn_enet_axi_sels[] = {"clock-osc-24m", "sys_pll1_266m", "sys_pll1_800m", "sys_pll2_250m", "sys_pll2_200m", "audio_pll1_out", "video_pll_out", "sys_pll3_out", }; @@ -67,6 +76,9 @@ static const char * const imx8mn_usdhc2_sels[] = {"clock-osc-24m", "sys_pll1_400 "sys_pll2_500m", "sys_pll3_out", "sys_pll1_266m", "audio_pll2_out", "sys_pll1_100m", };
+static const char * const imx8mn_gic_sels[] = {"clock-osc-24m", "sys_pll2_200m", "sys_pll1_40m", + "sys_pll2_100m", "sys_pll1_800m", "clk_ext2", + "clk_ext4", "audio_pll2_out" }; #if CONFIG_IS_ENABLED(DM_SPI) static const char * const imx8mn_ecspi1_sels[] = {"clock-osc-24m", "sys_pll2_200m", "sys_pll1_40m", "sys_pll1_160m", "sys_pll1_800m", "sys_pll3_out", @@ -286,15 +298,18 @@ static int imx8mn_clk_probe(struct udevice *dev) clk_dm(IMX8MN_CLK_IPG_ROOT, imx_clk_divider2("ipg_root", "ahb", base + 0x9080, 0, 1));
+ /* BUS */ + clk_dm(IMX8MN_CLK_MAIN_AXI, + imx8m_clk_composite_critical("main_axi", imx8mn_main_axi_sels, base + 0x8800)); clk_dm(IMX8MN_CLK_ENET_AXI, - imx8m_clk_composite("enet_axi", imx8mn_enet_axi_sels, - base + 0x8880)); + imx8m_clk_composite("enet_axi", imx8mn_enet_axi_sels, base + 0x8880)); clk_dm(IMX8MN_CLK_NAND_USDHC_BUS, - imx8m_clk_composite_critical("nand_usdhc_bus", - imx8mn_nand_usdhc_sels, + imx8m_clk_composite_critical("nand_usdhc_bus", imx8mn_nand_usdhc_sels, base + 0x8900)); clk_dm(IMX8MN_CLK_USB_BUS, imx8m_clk_composite("usb_bus", imx8mn_usb_bus_sels, base + 0x8b80)); + clk_dm(IMX8MN_CLK_NOC, + imx8m_clk_composite_critical("noc", imx8mn_noc_sels, base + 0x8d00));
/* IP */ clk_dm(IMX8MN_CLK_USDHC1, @@ -389,7 +404,8 @@ static int imx8mn_clk_probe(struct udevice *dev) clk_dm(IMX8MN_CLK_PWM4_ROOT, imx_clk_gate4("pwm4_root_clk", "pwm4", base + 0x42b0, 0)); #endif - + clk_dm(IMX8MN_CLK_GIC, + imx8m_clk_composite_critical("gic", imx8mn_gic_sels, base + 0xb200)); #if CONFIG_IS_ENABLED(DM_SPI) clk_dm(IMX8MN_CLK_ECSPI1, imx8m_clk_composite("ecspi1", imx8mn_ecspi1_sels, base + 0xb280));