Add i.MX8QM clk driver, SDHC/FEC/UART/I2C supported.
Signed-off-by: Peng Fan peng.fan@nxp.com --- drivers/clk/imx/Makefile | 1 + drivers/clk/imx/clk-imx8.c | 1 + drivers/clk/imx/clk-imx8qm.c | 307 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 309 insertions(+) create mode 100644 drivers/clk/imx/clk-imx8qm.c
diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile index d07d91b88f..eb379c188a 100644 --- a/drivers/clk/imx/Makefile +++ b/drivers/clk/imx/Makefile @@ -6,4 +6,5 @@ obj-$(CONFIG_CLK_IMX8) += clk-imx8.o
ifdef CONFIG_CLK_IMX8 obj-$(CONFIG_IMX8QXP) += clk-imx8qxp.o +obj-$(CONFIG_IMX8QM) += clk-imx8qm.o endif diff --git a/drivers/clk/imx/clk-imx8.c b/drivers/clk/imx/clk-imx8.c index c69a9ed867..a755e26501 100644 --- a/drivers/clk/imx/clk-imx8.c +++ b/drivers/clk/imx/clk-imx8.c @@ -101,6 +101,7 @@ static int imx8_clk_probe(struct udevice *dev)
static const struct udevice_id imx8_clk_ids[] = { { .compatible = "fsl,imx8qxp-clk" }, + { .compatible = "fsl,imx8qm-clk" }, { }, };
diff --git a/drivers/clk/imx/clk-imx8qm.c b/drivers/clk/imx/clk-imx8qm.c new file mode 100644 index 0000000000..6b5561e178 --- /dev/null +++ b/drivers/clk/imx/clk-imx8qm.c @@ -0,0 +1,307 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright 2018 NXP + * Peng Fan peng.fan@nxp.com + */ + +#include <common.h> +#include <clk-uclass.h> +#include <dm.h> +#include <asm/arch/sci/sci.h> +#include <asm/arch/clock.h> +#include <dt-bindings/clock/imx8qm-clock.h> +#include <dt-bindings/soc/imx_rsrc.h> +#include <misc.h> + +#include "clk-imx8.h" + +#if CONFIG_IS_ENABLED(CMD_CLK) +struct imx8_clks imx8_clk_names[] = { + { IMX8QM_A53_DIV, "A53_DIV" }, + { IMX8QM_UART0_CLK, "UART0" }, + { IMX8QM_UART1_CLK, "UART1" }, + { IMX8QM_UART2_CLK, "UART2" }, + { IMX8QM_UART3_CLK, "UART3" }, + { IMX8QM_SDHC0_CLK, "SDHC0" }, + { IMX8QM_SDHC1_CLK, "SDHC1" }, + { IMX8QM_SDHC2_CLK, "SDHC2" }, + { IMX8QM_ENET0_AHB_CLK, "ENET0_AHB" }, + { IMX8QM_ENET0_IPG_CLK, "ENET0_IPG" }, + { IMX8QM_ENET0_REF_DIV, "ENET0_REF" }, + { IMX8QM_ENET0_PTP_CLK, "ENET0_PTP" }, + { IMX8QM_ENET1_AHB_CLK, "ENET1_AHB" }, + { IMX8QM_ENET1_IPG_CLK, "ENET1_IPG" }, + { IMX8QM_ENET1_REF_DIV, "ENET1_REF" }, + { IMX8QM_ENET1_PTP_CLK, "ENET1_PTP" }, +}; + +int num_clks = ARRAY_SIZE(imx8_clk_names); +#endif + +ulong imx8_clk_get_rate(struct clk *clk) +{ + sc_pm_clk_t pm_clk; + ulong rate; + u16 resource; + int ret; + + debug("%s(#%lu)\n", __func__, clk->id); + + switch (clk->id) { + case IMX8QM_A53_DIV: + resource = SC_R_A53; + pm_clk = SC_PM_CLK_CPU; + break; + case IMX8QM_I2C0_CLK: + resource = SC_R_I2C_0; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_I2C1_CLK: + resource = SC_R_I2C_1; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_I2C2_CLK: + resource = SC_R_I2C_2; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_I2C3_CLK: + resource = SC_R_I2C_3; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_SDHC0_IPG_CLK: + case IMX8QM_SDHC0_CLK: + case IMX8QM_SDHC0_DIV: + resource = SC_R_SDHC_0; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_SDHC1_IPG_CLK: + case IMX8QM_SDHC1_CLK: + case IMX8QM_SDHC1_DIV: + resource = SC_R_SDHC_1; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_UART0_IPG_CLK: + case IMX8QM_UART0_CLK: + resource = SC_R_UART_0; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_UART1_CLK: + resource = SC_R_UART_1; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_UART2_CLK: + resource = SC_R_UART_2; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_UART3_CLK: + resource = SC_R_UART_3; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_ENET0_IPG_CLK: + case IMX8QM_ENET0_AHB_CLK: + case IMX8QM_ENET0_REF_DIV: + case IMX8QM_ENET0_PTP_CLK: + resource = SC_R_ENET_0; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_ENET1_IPG_CLK: + case IMX8QM_ENET1_AHB_CLK: + case IMX8QM_ENET1_REF_DIV: + case IMX8QM_ENET1_PTP_CLK: + resource = SC_R_ENET_1; + pm_clk = SC_PM_CLK_PER; + break; + default: + if (clk->id < IMX8QM_UART0_IPG_CLK || + clk->id >= IMX8QM_CLK_END) { + printf("%s(Invalid clk ID #%lu)\n", + __func__, clk->id); + return -EINVAL; + } + return -ENOTSUPP; + }; + + ret = sc_pm_get_clock_rate(-1, resource, pm_clk, + (sc_pm_clock_rate_t *)&rate); + if (ret) { + printf("%s err %d\n", __func__, ret); + return ret; + } + + return rate; +} + +ulong imx8_clk_set_rate(struct clk *clk, unsigned long rate) +{ + sc_pm_clk_t pm_clk; + u32 new_rate = rate; + u16 resource; + int ret; + + debug("%s(#%lu), rate: %lu\n", __func__, clk->id, rate); + + switch (clk->id) { + case IMX8QM_I2C0_CLK: + resource = SC_R_I2C_0; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_I2C1_CLK: + resource = SC_R_I2C_1; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_I2C2_CLK: + resource = SC_R_I2C_2; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_I2C3_CLK: + resource = SC_R_I2C_3; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_UART0_CLK: + resource = SC_R_UART_0; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_UART1_CLK: + resource = SC_R_UART_1; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_UART2_CLK: + resource = SC_R_UART_2; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_UART3_CLK: + resource = SC_R_UART_3; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_SDHC0_IPG_CLK: + case IMX8QM_SDHC0_CLK: + case IMX8QM_SDHC0_DIV: + resource = SC_R_SDHC_0; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_SDHC1_IPG_CLK: + case IMX8QM_SDHC1_CLK: + case IMX8QM_SDHC1_DIV: + resource = SC_R_SDHC_1; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_ENET0_IPG_CLK: + case IMX8QM_ENET0_AHB_CLK: + case IMX8QM_ENET0_REF_DIV: + case IMX8QM_ENET0_PTP_CLK: + case IMX8QM_ENET0_ROOT_DIV: + resource = SC_R_ENET_0; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_ENET1_IPG_CLK: + case IMX8QM_ENET1_AHB_CLK: + case IMX8QM_ENET1_REF_DIV: + case IMX8QM_ENET1_PTP_CLK: + case IMX8QM_ENET1_ROOT_DIV: + resource = SC_R_ENET_1; + pm_clk = SC_PM_CLK_PER; + break; + default: + if (clk->id < IMX8QM_UART0_IPG_CLK || + clk->id >= IMX8QM_CLK_END) { + printf("%s(Invalid clk ID #%lu)\n", + __func__, clk->id); + return -EINVAL; + } + return -ENOTSUPP; + }; + + ret = sc_pm_set_clock_rate(-1, resource, pm_clk, &new_rate); + if (ret) { + printf("%s err %d\n", __func__, ret); + return ret; + } + + return new_rate; +} + +int __imx8_clk_enable(struct clk *clk, bool enable) +{ + sc_pm_clk_t pm_clk; + u16 resource; + int ret; + + debug("%s(#%lu)\n", __func__, clk->id); + + switch (clk->id) { + case IMX8QM_I2C0_CLK: + resource = SC_R_I2C_0; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_I2C1_CLK: + resource = SC_R_I2C_1; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_I2C2_CLK: + resource = SC_R_I2C_2; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_I2C3_CLK: + resource = SC_R_I2C_3; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_UART0_CLK: + resource = SC_R_UART_0; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_UART1_CLK: + resource = SC_R_UART_1; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_UART2_CLK: + resource = SC_R_UART_2; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_UART3_CLK: + resource = SC_R_UART_3; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_SDHC0_IPG_CLK: + case IMX8QM_SDHC0_CLK: + case IMX8QM_SDHC0_DIV: + resource = SC_R_SDHC_0; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_SDHC1_IPG_CLK: + case IMX8QM_SDHC1_CLK: + case IMX8QM_SDHC1_DIV: + resource = SC_R_SDHC_1; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_ENET0_IPG_CLK: + case IMX8QM_ENET0_AHB_CLK: + case IMX8QM_ENET0_REF_DIV: + case IMX8QM_ENET0_PTP_CLK: + resource = SC_R_ENET_0; + pm_clk = SC_PM_CLK_PER; + break; + case IMX8QM_ENET1_IPG_CLK: + case IMX8QM_ENET1_AHB_CLK: + case IMX8QM_ENET1_REF_DIV: + case IMX8QM_ENET1_PTP_CLK: + resource = SC_R_ENET_1; + pm_clk = SC_PM_CLK_PER; + break; + default: + if (clk->id < IMX8QM_UART0_IPG_CLK || + clk->id >= IMX8QM_CLK_END) { + printf("%s(Invalid clk ID #%lu)\n", + __func__, clk->id); + return -EINVAL; + } + return -ENOTSUPP; + } + + ret = sc_pm_clock_enable(-1, resource, pm_clk, enable, 0); + if (ret) { + printf("%s err %d\n", __func__, ret); + return ret; + } + + return 0; +}