[PATCH v4 2/4] clk: imx8mq: Add a clock driver for the imx8mq

[Heiko Thiery]

Hi Angus,

could you include the UART clocks?

Am Di., 15. März 2022 um 14:09 Uhr schrieb Angus Ainslie <angus at akkea.ca>:
>
> This is a DM clock driver based off the imx8mm u-boot driver and the linux
> kernel driver.
>
> All of the PLLs and clocks are initialized so the subsystems below are
> functional and tested.
>
> 1) USB host and peripheral
> 2) ECSPI
> 3) UART
> 4) I2C all busses
> 5) USDHC for eMMC support
> 6) USB storage
> 7) GPIO
> 8) DRAM
>
> Signed-off-by: Angus Ainslie <angus at akkea.ca>
> ---

Could you include the UART clocks? Or should I wait until your patch
is accepted and then send this one after?

diff --git a/drivers/clk/imx/clk-imx8mq.c b/drivers/clk/imx/clk-imx8mq.c
index c3b685dbaa..b2d92f4776 100644
--- a/drivers/clk/imx/clk-imx8mq.c
+++ b/drivers/clk/imx/clk-imx8mq.c
@@ -82,6 +82,23 @@ static const char *imx8mq_i2c4_sels[] =
{"clock-osc-25m", "sys_pll1_160m", "sys_
                                         "sys_pll3_out",
"audio_pll1_out", "video_pll1_out",
                                         "audio_pll2_out", "sys_pll1_133m", };

+static const char * const imx8mq_uart1_sels[] = {"clock-osc-25m",
"sys_pll1_80m", "sys_pll2_200m",
+                                                "sys_pll2_100m",
"sys_pll3_out", "clk_ext2",
+                                                "clk_ext4",
"audio_pll2_out", };
+
+static const char * const imx8mq_uart2_sels[] = {"clock-osc-25m",
"sys_pll1_80m", "sys_pll2_200m",
+                                                "sys_pll2_100m",
"sys_pll3_out", "clk_ext2",
+                                                "clk_ext3",
"audio_pll2_out", };
+
+static const char * const imx8mq_uart3_sels[] = {"clock-osc-25m",
"sys_pll1_80m", "sys_pll2_200m",
+                                                "sys_pll2_100m",
"sys_pll3_out", "clk_ext2",
+                                                "clk_ext4",
"audio_pll2_out", };
+
+static const char * const imx8mq_uart4_sels[] = {"clock-osc-25m",
"sys_pll1_80m", "sys_pll2_200m",
+                                                "sys_pll2_100m",
"sys_pll3_out", "clk_ext2",
+                                                "clk_ext3",
"audio_pll2_out", };
+
+
 static const char *imx8mq_wdog_sels[] = {"clock-osc-25m",
"sys_pll1_133m", "sys_pll1_160m",
                                         "vpu_pll_out",
"sys_pll2_125m", "sys_pll3_out",
                                         "sys_pll1_80m", "sys_pll2_166m", };
@@ -358,6 +375,16 @@ static int imx8mq_clk_probe(struct udevice *dev)
               imx8m_clk_composite("i2c3", imx8mq_i2c3_sels, base + 0xae00));
        clk_dm(IMX8MQ_CLK_I2C4,
               imx8m_clk_composite("i2c4", imx8mq_i2c4_sels, base + 0xae80));
+
+       clk_dm(IMX8MQ_CLK_UART1,
+              imx8m_clk_composite("uart1", imx8mq_uart1_sels, base + 0xaf00));
+       clk_dm(IMX8MQ_CLK_UART2,
+              imx8m_clk_composite("uart2", imx8mq_uart2_sels, base + 0xaf80));
+       clk_dm(IMX8MQ_CLK_UART3,
+              imx8m_clk_composite("uart3", imx8mq_uart3_sels, base + 0xb000));
+       clk_dm(IMX8MQ_CLK_UART4,
+              imx8m_clk_composite("uart4", imx8mq_uart4_sels, base + 0xb080));
+
        clk_dm(IMX8MQ_CLK_WDOG,
               imx8m_clk_composite("wdog", imx8mq_wdog_sels, base + 0xb900));
        clk_dm(IMX8MQ_CLK_QSPI,
@@ -387,6 +414,16 @@ static int imx8mq_clk_probe(struct udevice *dev)
               imx_clk_gate4("i2c3_root_clk", "i2c3", base + 0x4190, 0));
        clk_dm(IMX8MQ_CLK_I2C4_ROOT,
               imx_clk_gate4("i2c4_root_clk", "i2c4", base + 0x41a0, 0));
+
+       clk_dm(IMX8MQ_CLK_UART1_ROOT,
+              imx_clk_gate4("uart1_root_clk", "uart1", base + 0x4490, 0));
+       clk_dm(IMX8MQ_CLK_UART2_ROOT,
+              imx_clk_gate4("uart2_root_clk", "uart2", base + 0x44a0, 0));
+       clk_dm(IMX8MQ_CLK_UART3_ROOT,
+              imx_clk_gate4("uart3_root_clk", "uart3", base + 0x44b0, 0));
+       clk_dm(IMX8MQ_CLK_UART4_ROOT,
+              imx_clk_gate4("uart4_root_clk", "uart4", base + 0x44c0, 0));
+
        clk_dm(IMX8MQ_CLK_OCOTP_ROOT,
               imx_clk_gate4("ocotp_root_clk", "ipg_root", base + 0x4220, 0));
        clk_dm(IMX8MQ_CLK_USDHC1_ROOT,

[SNIP]

-- 
Heiko