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authorAisheng Dong <aisheng.dong@nxp.com>2018-12-13 15:42:58 +0000
committerStephen Boyd <sboyd@kernel.org>2018-12-14 13:00:29 -0800
commitc2cccb6d0b33bad71154ec0c208d060456bcf6d4 (patch)
treea9095faf4041f826db940758cc3e06fcdc823b60 /drivers/clk
parentfe37b482041709753365bfca739cba24ada297ef (diff)
clk: imx: add imx8qxp clk driver
Add imx8qxp clk driver which is based on SCU firmware clock service. Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Michael Turquette <mturquette@baylibre.com> Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> [sboyd@kernel.org: Move the makefile rule higher in the file] Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/imx/Kconfig7
-rw-r--r--drivers/clk/imx/Makefile2
-rw-r--r--drivers/clk/imx/clk-imx8qxp.c153
3 files changed, 162 insertions, 0 deletions
diff --git a/drivers/clk/imx/Kconfig b/drivers/clk/imx/Kconfig
index 2a3b58d7bddf..a509a8fe7616 100644
--- a/drivers/clk/imx/Kconfig
+++ b/drivers/clk/imx/Kconfig
@@ -7,3 +7,10 @@ config MXC_CLK
config MXC_CLK_SCU
bool
depends on IMX_SCU
+
+config CLK_IMX8QXP
+ bool "IMX8QXP SCU Clock"
+ depends on ARCH_MXC && IMX_SCU && ARM64
+ select MXC_CLK_SCU
+ help
+ Build the driver for IMX8QXP SCU based clocks.
diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile
index eec6d72ea5fb..a8a4518b065b 100644
--- a/drivers/clk/imx/Makefile
+++ b/drivers/clk/imx/Makefile
@@ -16,6 +16,8 @@ obj-$(CONFIG_MXC_CLK) += \
obj-$(CONFIG_MXC_CLK_SCU) += \
clk-scu.o
+obj-$(CONFIG_CLK_IMX8QXP) += clk-imx8qxp.o
+
obj-$(CONFIG_SOC_IMX1) += clk-imx1.o
obj-$(CONFIG_SOC_IMX21) += clk-imx21.o
obj-$(CONFIG_SOC_IMX25) += clk-imx25.o
diff --git a/drivers/clk/imx/clk-imx8qxp.c b/drivers/clk/imx/clk-imx8qxp.c
new file mode 100644
index 000000000000..33c9396b08f1
--- /dev/null
+++ b/drivers/clk/imx/clk-imx8qxp.c
@@ -0,0 +1,153 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2018 NXP
+ * Dong Aisheng <aisheng.dong@nxp.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include "clk-scu.h"
+
+#include <dt-bindings/clock/imx8qxp-clock.h>
+#include <dt-bindings/firmware/imx/rsrc.h>
+
+static int imx8qxp_clk_probe(struct platform_device *pdev)
+{
+ struct device_node *ccm_node = pdev->dev.of_node;
+ struct clk_hw_onecell_data *clk_data;
+ struct clk_hw **clks;
+ int ret, i;
+
+ ret = imx_clk_scu_init();
+ if (ret)
+ return ret;
+
+ clk_data = devm_kzalloc(&pdev->dev, struct_size(clk_data, hws,
+ IMX8QXP_SCU_CLK_END), GFP_KERNEL);
+ if (!clk_data)
+ return -ENOMEM;
+
+ clk_data->num = IMX8QXP_SCU_CLK_END;
+ clks = clk_data->hws;
+
+ /* Fixed clocks */
+ clks[IMX8QXP_CLK_DUMMY] = clk_hw_register_fixed_rate(NULL, "dummy", NULL, 0, 0);
+ clks[IMX8QXP_ADMA_IPG_CLK_ROOT] = clk_hw_register_fixed_rate(NULL, "dma_ipg_clk_root", NULL, 0, 120000000);
+ clks[IMX8QXP_CONN_AXI_CLK_ROOT] = clk_hw_register_fixed_rate(NULL, "conn_axi_clk_root", NULL, 0, 333333333);
+ clks[IMX8QXP_CONN_AHB_CLK_ROOT] = clk_hw_register_fixed_rate(NULL, "conn_ahb_clk_root", NULL, 0, 166666666);
+ clks[IMX8QXP_CONN_IPG_CLK_ROOT] = clk_hw_register_fixed_rate(NULL, "conn_ipg_clk_root", NULL, 0, 83333333);
+ clks[IMX8QXP_DC_AXI_EXT_CLK] = clk_hw_register_fixed_rate(NULL, "dc_axi_ext_clk_root", NULL, 0, 800000000);
+ clks[IMX8QXP_DC_AXI_INT_CLK] = clk_hw_register_fixed_rate(NULL, "dc_axi_int_clk_root", NULL, 0, 400000000);
+ clks[IMX8QXP_DC_CFG_CLK] = clk_hw_register_fixed_rate(NULL, "dc_cfg_clk_root", NULL, 0, 100000000);
+ clks[IMX8QXP_MIPI_IPG_CLK] = clk_hw_register_fixed_rate(NULL, "mipi_ipg_clk_root", NULL, 0, 120000000);
+ clks[IMX8QXP_IMG_AXI_CLK] = clk_hw_register_fixed_rate(NULL, "img_axi_clk_root", NULL, 0, 400000000);
+ clks[IMX8QXP_IMG_IPG_CLK] = clk_hw_register_fixed_rate(NULL, "img_ipg_clk_root", NULL, 0, 200000000);
+ clks[IMX8QXP_IMG_PXL_CLK] = clk_hw_register_fixed_rate(NULL, "img_pxl_clk_root", NULL, 0, 600000000);
+ clks[IMX8QXP_HSIO_AXI_CLK] = clk_hw_register_fixed_rate(NULL, "hsio_axi_clk_root", NULL, 0, 400000000);
+ clks[IMX8QXP_HSIO_PER_CLK] = clk_hw_register_fixed_rate(NULL, "hsio_per_clk_root", NULL, 0, 133333333);
+ clks[IMX8QXP_LSIO_MEM_CLK] = clk_hw_register_fixed_rate(NULL, "lsio_mem_clk_root", NULL, 0, 200000000);
+ clks[IMX8QXP_LSIO_BUS_CLK] = clk_hw_register_fixed_rate(NULL, "lsio_bus_clk_root", NULL, 0, 100000000);
+
+ /* ARM core */
+ clks[IMX8QXP_A35_CLK] = imx_clk_scu("a35_clk", IMX_SC_R_A35, IMX_SC_PM_CLK_CPU);
+
+ /* LSIO SS */
+ clks[IMX8QXP_LSIO_PWM0_CLK] = imx_clk_scu("pwm0_clk", IMX_SC_R_PWM_0, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_LSIO_PWM1_CLK] = imx_clk_scu("pwm1_clk", IMX_SC_R_PWM_1, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_LSIO_PWM2_CLK] = imx_clk_scu("pwm2_clk", IMX_SC_R_PWM_2, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_LSIO_PWM3_CLK] = imx_clk_scu("pwm3_clk", IMX_SC_R_PWM_3, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_LSIO_PWM4_CLK] = imx_clk_scu("pwm4_clk", IMX_SC_R_PWM_4, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_LSIO_PWM5_CLK] = imx_clk_scu("pwm5_clk", IMX_SC_R_PWM_5, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_LSIO_PWM6_CLK] = imx_clk_scu("pwm6_clk", IMX_SC_R_PWM_6, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_LSIO_PWM7_CLK] = imx_clk_scu("pwm7_clk", IMX_SC_R_PWM_7, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_LSIO_GPT0_CLK] = imx_clk_scu("gpt0_clk", IMX_SC_R_GPT_0, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_LSIO_GPT1_CLK] = imx_clk_scu("gpt1_clk", IMX_SC_R_GPT_1, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_LSIO_GPT2_CLK] = imx_clk_scu("gpt2_clk", IMX_SC_R_GPT_2, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_LSIO_GPT3_CLK] = imx_clk_scu("gpt3_clk", IMX_SC_R_GPT_3, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_LSIO_GPT4_CLK] = imx_clk_scu("gpt4_clk", IMX_SC_R_GPT_4, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_LSIO_FSPI0_CLK] = imx_clk_scu("fspi0_clk", IMX_SC_R_FSPI_0, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_LSIO_FSPI1_CLK] = imx_clk_scu("fspi1_clk", IMX_SC_R_FSPI_1, IMX_SC_PM_CLK_PER);
+
+ /* ADMA SS */
+ clks[IMX8QXP_ADMA_UART0_CLK] = imx_clk_scu("uart0_clk", IMX_SC_R_UART_0, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_ADMA_UART1_CLK] = imx_clk_scu("uart1_clk", IMX_SC_R_UART_1, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_ADMA_UART2_CLK] = imx_clk_scu("uart2_clk", IMX_SC_R_UART_2, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_ADMA_UART3_CLK] = imx_clk_scu("uart3_clk", IMX_SC_R_UART_3, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_ADMA_SPI0_CLK] = imx_clk_scu("spi0_clk", IMX_SC_R_SPI_0, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_ADMA_SPI1_CLK] = imx_clk_scu("spi1_clk", IMX_SC_R_SPI_1, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_ADMA_SPI2_CLK] = imx_clk_scu("spi2_clk", IMX_SC_R_SPI_2, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_ADMA_SPI3_CLK] = imx_clk_scu("spi3_clk", IMX_SC_R_SPI_3, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_ADMA_CAN0_CLK] = imx_clk_scu("can0_clk", IMX_SC_R_CAN_0, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_ADMA_I2C0_CLK] = imx_clk_scu("i2c0_clk", IMX_SC_R_I2C_0, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_ADMA_I2C1_CLK] = imx_clk_scu("i2c1_clk", IMX_SC_R_I2C_1, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_ADMA_I2C2_CLK] = imx_clk_scu("i2c2_clk", IMX_SC_R_I2C_2, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_ADMA_I2C3_CLK] = imx_clk_scu("i2c3_clk", IMX_SC_R_I2C_3, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_ADMA_FTM0_CLK] = imx_clk_scu("ftm0_clk", IMX_SC_R_FTM_0, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_ADMA_FTM1_CLK] = imx_clk_scu("ftm1_clk", IMX_SC_R_FTM_1, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_ADMA_ADC0_CLK] = imx_clk_scu("adc0_clk", IMX_SC_R_ADC_0, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_ADMA_PWM_CLK] = imx_clk_scu("pwm_clk", IMX_SC_R_LCD_0_PWM_0, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_ADMA_LCD_CLK] = imx_clk_scu("lcd_clk", IMX_SC_R_LCD_0, IMX_SC_PM_CLK_PER);
+
+ /* Connectivity */
+ clks[IMX8QXP_CONN_SDHC0_CLK] = imx_clk_scu("sdhc0_clk", IMX_SC_R_SDHC_0, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_CONN_SDHC1_CLK] = imx_clk_scu("sdhc1_clk", IMX_SC_R_SDHC_1, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_CONN_SDHC2_CLK] = imx_clk_scu("sdhc2_clk", IMX_SC_R_SDHC_2, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_CONN_ENET0_ROOT_CLK] = imx_clk_scu("enet0_clk", IMX_SC_R_ENET_0, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_CONN_ENET0_BYPASS_CLK] = imx_clk_scu("enet0_bypass_clk", IMX_SC_R_ENET_0, IMX_SC_PM_CLK_BYPASS);
+ clks[IMX8QXP_CONN_ENET0_RGMII_CLK] = imx_clk_scu("enet0_rgmii_clk", IMX_SC_R_ENET_0, IMX_SC_PM_CLK_MISC0);
+ clks[IMX8QXP_CONN_ENET1_ROOT_CLK] = imx_clk_scu("enet1_clk", IMX_SC_R_ENET_1, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_CONN_ENET1_BYPASS_CLK] = imx_clk_scu("enet1_bypass_clk", IMX_SC_R_ENET_1, IMX_SC_PM_CLK_BYPASS);
+ clks[IMX8QXP_CONN_ENET1_RGMII_CLK] = imx_clk_scu("enet1_rgmii_clk", IMX_SC_R_ENET_1, IMX_SC_PM_CLK_MISC0);
+ clks[IMX8QXP_CONN_GPMI_BCH_IO_CLK] = imx_clk_scu("gpmi_io_clk", IMX_SC_R_NAND, IMX_SC_PM_CLK_MST_BUS);
+ clks[IMX8QXP_CONN_GPMI_BCH_CLK] = imx_clk_scu("gpmi_bch_clk", IMX_SC_R_NAND, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_CONN_USB2_ACLK] = imx_clk_scu("usb3_aclk_div", IMX_SC_R_USB_2, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_CONN_USB2_BUS_CLK] = imx_clk_scu("usb3_bus_div", IMX_SC_R_USB_2, IMX_SC_PM_CLK_MST_BUS);
+ clks[IMX8QXP_CONN_USB2_LPM_CLK] = imx_clk_scu("usb3_lpm_div", IMX_SC_R_USB_2, IMX_SC_PM_CLK_MISC);
+
+ /* Display controller SS */
+ clks[IMX8QXP_DC0_DISP0_CLK] = imx_clk_scu("dc0_disp0_clk", IMX_SC_R_DC_0, IMX_SC_PM_CLK_MISC0);
+ clks[IMX8QXP_DC0_DISP1_CLK] = imx_clk_scu("dc0_disp1_clk", IMX_SC_R_DC_0, IMX_SC_PM_CLK_MISC1);
+
+ /* MIPI-LVDS SS */
+ clks[IMX8QXP_MIPI0_I2C0_CLK] = imx_clk_scu("mipi0_i2c0_clk", IMX_SC_R_MIPI_0_I2C_0, IMX_SC_PM_CLK_MISC2);
+ clks[IMX8QXP_MIPI0_I2C1_CLK] = imx_clk_scu("mipi0_i2c1_clk", IMX_SC_R_MIPI_0_I2C_1, IMX_SC_PM_CLK_MISC2);
+
+ /* MIPI CSI SS */
+ clks[IMX8QXP_CSI0_CORE_CLK] = imx_clk_scu("mipi_csi0_core_clk", IMX_SC_R_CSI_0, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_CSI0_ESC_CLK] = imx_clk_scu("mipi_csi0_esc_clk", IMX_SC_R_CSI_0, IMX_SC_PM_CLK_MISC);
+ clks[IMX8QXP_CSI0_I2C0_CLK] = imx_clk_scu("mipi_csi0_i2c0_clk", IMX_SC_R_CSI_0_I2C_0, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_CSI0_PWM0_CLK] = imx_clk_scu("mipi_csi0_pwm0_clk", IMX_SC_R_CSI_0_PWM_0, IMX_SC_PM_CLK_PER);
+
+ /* GPU SS */
+ clks[IMX8QXP_GPU0_CORE_CLK] = imx_clk_scu("gpu_core0_clk", IMX_SC_R_GPU_0_PID0, IMX_SC_PM_CLK_PER);
+ clks[IMX8QXP_GPU0_SHADER_CLK] = imx_clk_scu("gpu_shader0_clk", IMX_SC_R_GPU_0_PID0, IMX_SC_PM_CLK_MISC);
+
+ for (i = 0; i < clk_data->num; i++) {
+ if (IS_ERR(clks[i]))
+ pr_warn("i.MX clk %u: register failed with %ld\n",
+ i, PTR_ERR(clks[i]));
+ }
+
+ return of_clk_add_hw_provider(ccm_node, of_clk_hw_onecell_get, clk_data);
+}
+
+static const struct of_device_id imx8qxp_match[] = {
+ { .compatible = "fsl,imx8qxp-clk", },
+ { /* sentinel */ }
+};
+
+static struct platform_driver imx8qxp_clk_driver = {
+ .driver = {
+ .name = "imx8qxp-clk",
+ .of_match_table = imx8qxp_match,
+ .suppress_bind_attrs = true,
+ },
+ .probe = imx8qxp_clk_probe,
+};
+builtin_platform_driver(imx8qxp_clk_driver);