| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Copyright 2019 NXP |
| * Peng Fan <peng.fan@nxp.com> |
| */ |
| |
| #include <common.h> |
| #include <clk.h> |
| #include <clk-uclass.h> |
| #include <dm.h> |
| #include <log.h> |
| #include <asm/arch/clock.h> |
| #include <asm/arch/imx-regs.h> |
| #include <dt-bindings/clock/imx8mn-clock.h> |
| |
| #include "clk.h" |
| |
| static const char *pll_ref_sels[] = { "clock-osc-24m", "dummy", "dummy", "dummy", }; |
| static const char *dram_pll_bypass_sels[] = {"dram_pll", "dram_pll_ref_sel", }; |
| static const char *arm_pll_bypass_sels[] = {"arm_pll", "arm_pll_ref_sel", }; |
| static const char *sys_pll1_bypass_sels[] = {"sys_pll1", "sys_pll1_ref_sel", }; |
| static const char *sys_pll2_bypass_sels[] = {"sys_pll2", "sys_pll2_ref_sel", }; |
| static const char *sys_pll3_bypass_sels[] = {"sys_pll3", "sys_pll3_ref_sel", }; |
| |
| static const char *imx8mn_a53_sels[] = {"clock-osc-24m", "arm_pll_out", "sys_pll2_500m", "sys_pll2_1000m", |
| "sys_pll1_800m", "sys_pll1_400m", "audio_pll1_out", "sys_pll3_out", }; |
| |
| static const char *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_pll1_out", }; |
| |
| static const char *imx8mn_enet_axi_sels[] = {"clock-osc-24m", "sys_pll1_266m", "sys_pll1_800m", "sys_pll2_250m", |
| "sys_pll2_200m", "audio_pll1_out", "video_pll1_out", "sys_pll3_out", }; |
| |
| #ifndef CONFIG_SPL_BUILD |
| static const char *imx8mn_enet_ref_sels[] = {"clock-osc-24m", "sys_pll2_125m", "sys_pll2_50m", "sys_pll2_100m", |
| "sys_pll1_160m", "audio_pll1_out", "video_pll1_out", "clk_ext4", }; |
| |
| static const char *imx8mn_enet_timer_sels[] = {"clock-osc-24m", "sys_pll2_100m", "audio_pll1_out", "clk_ext1", "clk_ext2", |
| "clk_ext3", "clk_ext4", "video_pll1_out", }; |
| |
| static const char *imx8mn_enet_phy_sels[] = {"clock-osc-24m", "sys_pll2_50m", "sys_pll2_125m", "sys_pll2_200m", |
| "sys_pll2_500m", "video_pll1_out", "audio_pll2_out", }; |
| #endif |
| |
| static const char *imx8mn_nand_usdhc_sels[] = {"clock-osc-24m", "sys_pll1_266m", "sys_pll1_800m", "sys_pll2_200m", |
| "sys_pll1_133m", "sys_pll3_out", "sys_pll2_250m", "audio_pll1_out", }; |
| |
| static const char * const imx8mn_usb_bus_sels[] = {"clock-osc-24m", "sys_pll2_500m", "sys_pll1_800m", |
| "sys_pll2_100m", "sys_pll2_200m", "clk_ext2", |
| "clk_ext4", "audio_pll2_out", }; |
| |
| static const char *imx8mn_usdhc1_sels[] = {"clock-osc-24m", "sys_pll1_400m", "sys_pll1_800m", "sys_pll2_500m", |
| "sys_pll3_out", "sys_pll1_266m", "audio_pll2_out", "sys_pll1_100m", }; |
| |
| static const char *imx8mn_usdhc2_sels[] = {"clock-osc-24m", "sys_pll1_400m", "sys_pll1_800m", "sys_pll2_500m", |
| "sys_pll3_out", "sys_pll1_266m", "audio_pll2_out", "sys_pll1_100m", }; |
| |
| #if CONFIG_IS_ENABLED(DM_SPI) |
| static const char *imx8mn_ecspi1_sels[] = {"osc_24m", "sys_pll2_200m", "sys_pll1_40m", |
| "sys_pll1_160m", "sys_pll1_800m", "sys_pll3_out", |
| "sys_pll2_250m", "audio_pll2_out", }; |
| |
| static const char *imx8mn_ecspi2_sels[] = {"osc_24m", "sys_pll2_200m", "sys_pll1_40m", |
| "sys_pll1_160m", "sys_pll1_800m", "sys_pll3_out", |
| "sys_pll2_250m", "audio_pll2_out", }; |
| |
| static const char *imx8mn_ecspi3_sels[] = {"osc_24m", "sys_pll2_200m", "sys_pll1_40m", |
| "sys_pll1_160m", "sys_pll1_800m", "sys_pll3_out", |
| "sys_pll2_250m", "audio_pll2_out", }; |
| #endif |
| |
| static const char *imx8mn_i2c1_sels[] = {"clock-osc-24m", "sys_pll1_160m", "sys_pll2_50m", "sys_pll3_out", "audio_pll1_out", |
| "video_pll1_out", "audio_pll2_out", "sys_pll1_133m", }; |
| |
| static const char *imx8mn_i2c2_sels[] = {"clock-osc-24m", "sys_pll1_160m", "sys_pll2_50m", "sys_pll3_out", "audio_pll1_out", |
| "video_pll1_out", "audio_pll2_out", "sys_pll1_133m", }; |
| |
| static const char *imx8mn_i2c3_sels[] = {"clock-osc-24m", "sys_pll1_160m", "sys_pll2_50m", "sys_pll3_out", "audio_pll1_out", |
| "video_pll1_out", "audio_pll2_out", "sys_pll1_133m", }; |
| |
| static const char *imx8mn_i2c4_sels[] = {"clock-osc-24m", "sys_pll1_160m", "sys_pll2_50m", "sys_pll3_out", "audio_pll1_out", |
| "video_pll1_out", "audio_pll2_out", "sys_pll1_133m", }; |
| |
| static const char *imx8mn_wdog_sels[] = {"clock-osc-24m", "sys_pll1_133m", "sys_pll1_160m", "vpu_pll_out", |
| "sys_pll2_125m", "sys_pll3_out", "sys_pll1_80m", "sys_pll2_166m", }; |
| |
| static const char *imx8mn_usdhc3_sels[] = {"clock-osc-24m", "sys_pll1_400m", "sys_pll1_800m", "sys_pll2_500m", |
| "sys_pll3_out", "sys_pll1_266m", "audio_pll2_clk", "sys_pll1_100m", }; |
| |
| static const char *imx8mn_qspi_sels[] = {"clock-osc-24m", "sys_pll1_400m", "sys_pll2_333m", "sys_pll2_500m", |
| "audio_pll2_out", "sys_pll1_266m", "sys_pll3_out", "sys_pll1_100m", }; |
| |
| static const char * const imx8mn_usb_core_sels[] = {"clock-osc-24m", "sys_pll1_100m", "sys_pll1_40m", |
| "sys_pll2_100m", "sys_pll2_200m", "clk_ext2", |
| "clk_ext3", "audio_pll2_out", }; |
| |
| static const char * const imx8mn_usb_phy_sels[] = {"clock-osc-24m", "sys_pll1_100m", "sys_pll1_40m", |
| "sys_pll2_100m", "sys_pll2_200m", "clk_ext2", |
| "clk_ext3", "audio_pll2_out", }; |
| |
| static int imx8mn_clk_probe(struct udevice *dev) |
| { |
| void __iomem *base; |
| |
| base = (void *)ANATOP_BASE_ADDR; |
| |
| clk_dm(IMX8MN_DRAM_PLL_REF_SEL, |
| imx_clk_mux("dram_pll_ref_sel", base + 0x50, 0, 2, |
| pll_ref_sels, ARRAY_SIZE(pll_ref_sels))); |
| clk_dm(IMX8MN_ARM_PLL_REF_SEL, |
| imx_clk_mux("arm_pll_ref_sel", base + 0x84, 0, 2, |
| pll_ref_sels, ARRAY_SIZE(pll_ref_sels))); |
| clk_dm(IMX8MN_SYS_PLL1_REF_SEL, |
| imx_clk_mux("sys_pll1_ref_sel", base + 0x94, 0, 2, |
| pll_ref_sels, ARRAY_SIZE(pll_ref_sels))); |
| clk_dm(IMX8MN_SYS_PLL2_REF_SEL, |
| imx_clk_mux("sys_pll2_ref_sel", base + 0x104, 0, 2, |
| pll_ref_sels, ARRAY_SIZE(pll_ref_sels))); |
| clk_dm(IMX8MN_SYS_PLL3_REF_SEL, |
| imx_clk_mux("sys_pll3_ref_sel", base + 0x114, 0, 2, |
| pll_ref_sels, ARRAY_SIZE(pll_ref_sels))); |
| |
| clk_dm(IMX8MN_DRAM_PLL, |
| imx_clk_pll14xx("dram_pll", "dram_pll_ref_sel", |
| base + 0x50, &imx_1443x_dram_pll)); |
| clk_dm(IMX8MN_ARM_PLL, |
| imx_clk_pll14xx("arm_pll", "arm_pll_ref_sel", |
| base + 0x84, &imx_1416x_pll)); |
| clk_dm(IMX8MN_SYS_PLL1, |
| imx_clk_pll14xx("sys_pll1", "sys_pll1_ref_sel", |
| base + 0x94, &imx_1416x_pll)); |
| clk_dm(IMX8MN_SYS_PLL2, |
| imx_clk_pll14xx("sys_pll2", "sys_pll2_ref_sel", |
| base + 0x104, &imx_1416x_pll)); |
| clk_dm(IMX8MN_SYS_PLL3, |
| imx_clk_pll14xx("sys_pll3", "sys_pll3_ref_sel", |
| base + 0x114, &imx_1416x_pll)); |
| |
| /* PLL bypass out */ |
| clk_dm(IMX8MN_DRAM_PLL_BYPASS, |
| imx_clk_mux_flags("dram_pll_bypass", base + 0x50, 4, 1, |
| dram_pll_bypass_sels, |
| ARRAY_SIZE(dram_pll_bypass_sels), |
| CLK_SET_RATE_PARENT)); |
| clk_dm(IMX8MN_ARM_PLL_BYPASS, |
| imx_clk_mux_flags("arm_pll_bypass", base + 0x84, 4, 1, |
| arm_pll_bypass_sels, |
| ARRAY_SIZE(arm_pll_bypass_sels), |
| CLK_SET_RATE_PARENT)); |
| clk_dm(IMX8MN_SYS_PLL1_BYPASS, |
| imx_clk_mux_flags("sys_pll1_bypass", base + 0x94, 4, 1, |
| sys_pll1_bypass_sels, |
| ARRAY_SIZE(sys_pll1_bypass_sels), |
| CLK_SET_RATE_PARENT)); |
| clk_dm(IMX8MN_SYS_PLL2_BYPASS, |
| imx_clk_mux_flags("sys_pll2_bypass", base + 0x104, 4, 1, |
| sys_pll2_bypass_sels, |
| ARRAY_SIZE(sys_pll2_bypass_sels), |
| CLK_SET_RATE_PARENT)); |
| clk_dm(IMX8MN_SYS_PLL3_BYPASS, |
| imx_clk_mux_flags("sys_pll3_bypass", base + 0x114, 4, 1, |
| sys_pll3_bypass_sels, |
| ARRAY_SIZE(sys_pll3_bypass_sels), |
| CLK_SET_RATE_PARENT)); |
| |
| /* PLL out gate */ |
| clk_dm(IMX8MN_DRAM_PLL_OUT, |
| imx_clk_gate("dram_pll_out", "dram_pll_bypass", |
| base + 0x50, 13)); |
| clk_dm(IMX8MN_ARM_PLL_OUT, |
| imx_clk_gate("arm_pll_out", "arm_pll_bypass", |
| base + 0x84, 11)); |
| clk_dm(IMX8MN_SYS_PLL1_OUT, |
| imx_clk_gate("sys_pll1_out", "sys_pll1_bypass", |
| base + 0x94, 11)); |
| clk_dm(IMX8MN_SYS_PLL2_OUT, |
| imx_clk_gate("sys_pll2_out", "sys_pll2_bypass", |
| base + 0x104, 11)); |
| clk_dm(IMX8MN_SYS_PLL3_OUT, |
| imx_clk_gate("sys_pll3_out", "sys_pll3_bypass", |
| base + 0x114, 11)); |
| |
| /* SYS PLL fixed output */ |
| clk_dm(IMX8MN_SYS_PLL1_40M, |
| imx_clk_fixed_factor("sys_pll1_40m", "sys_pll1_out", 1, 20)); |
| clk_dm(IMX8MN_SYS_PLL1_80M, |
| imx_clk_fixed_factor("sys_pll1_80m", "sys_pll1_out", 1, 10)); |
| clk_dm(IMX8MN_SYS_PLL1_100M, |
| imx_clk_fixed_factor("sys_pll1_100m", "sys_pll1_out", 1, 8)); |
| clk_dm(IMX8MN_SYS_PLL1_133M, |
| imx_clk_fixed_factor("sys_pll1_133m", "sys_pll1_out", 1, 6)); |
| clk_dm(IMX8MN_SYS_PLL1_160M, |
| imx_clk_fixed_factor("sys_pll1_160m", "sys_pll1_out", 1, 5)); |
| clk_dm(IMX8MN_SYS_PLL1_200M, |
| imx_clk_fixed_factor("sys_pll1_200m", "sys_pll1_out", 1, 4)); |
| clk_dm(IMX8MN_SYS_PLL1_266M, |
| imx_clk_fixed_factor("sys_pll1_266m", "sys_pll1_out", 1, 3)); |
| clk_dm(IMX8MN_SYS_PLL1_400M, |
| imx_clk_fixed_factor("sys_pll1_400m", "sys_pll1_out", 1, 2)); |
| clk_dm(IMX8MN_SYS_PLL1_800M, |
| imx_clk_fixed_factor("sys_pll1_800m", "sys_pll1_out", 1, 1)); |
| |
| clk_dm(IMX8MN_SYS_PLL2_50M, |
| imx_clk_fixed_factor("sys_pll2_50m", "sys_pll2_out", 1, 20)); |
| clk_dm(IMX8MN_SYS_PLL2_100M, |
| imx_clk_fixed_factor("sys_pll2_100m", "sys_pll2_out", 1, 10)); |
| clk_dm(IMX8MN_SYS_PLL2_125M, |
| imx_clk_fixed_factor("sys_pll2_125m", "sys_pll2_out", 1, 8)); |
| clk_dm(IMX8MN_SYS_PLL2_166M, |
| imx_clk_fixed_factor("sys_pll2_166m", "sys_pll2_out", 1, 6)); |
| clk_dm(IMX8MN_SYS_PLL2_200M, |
| imx_clk_fixed_factor("sys_pll2_200m", "sys_pll2_out", 1, 5)); |
| clk_dm(IMX8MN_SYS_PLL2_250M, |
| imx_clk_fixed_factor("sys_pll2_250m", "sys_pll2_out", 1, 4)); |
| clk_dm(IMX8MN_SYS_PLL2_333M, |
| imx_clk_fixed_factor("sys_pll2_333m", "sys_pll2_out", 1, 3)); |
| clk_dm(IMX8MN_SYS_PLL2_500M, |
| imx_clk_fixed_factor("sys_pll2_500m", "sys_pll2_out", 1, 2)); |
| clk_dm(IMX8MN_SYS_PLL2_1000M, |
| imx_clk_fixed_factor("sys_pll2_1000m", "sys_pll2_out", 1, 1)); |
| |
| base = dev_read_addr_ptr(dev); |
| if (!base) |
| return -EINVAL; |
| |
| clk_dm(IMX8MN_CLK_A53_SRC, |
| imx_clk_mux2("arm_a53_src", base + 0x8000, 24, 3, |
| imx8mn_a53_sels, ARRAY_SIZE(imx8mn_a53_sels))); |
| clk_dm(IMX8MN_CLK_A53_CG, |
| imx_clk_gate3("arm_a53_cg", "arm_a53_src", base + 0x8000, 28)); |
| clk_dm(IMX8MN_CLK_A53_DIV, |
| imx_clk_divider2("arm_a53_div", "arm_a53_cg", |
| base + 0x8000, 0, 3)); |
| |
| clk_dm(IMX8MN_CLK_AHB, |
| imx8m_clk_composite_critical("ahb", imx8mn_ahb_sels, |
| base + 0x9000)); |
| clk_dm(IMX8MN_CLK_IPG_ROOT, |
| imx_clk_divider2("ipg_root", "ahb", base + 0x9080, 0, 1)); |
| |
| clk_dm(IMX8MN_CLK_ENET_AXI, |
| 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, |
| base + 0x8900)); |
| clk_dm(IMX8MN_CLK_USB_BUS, |
| imx8m_clk_composite("usb_bus", imx8mn_usb_bus_sels, base + 0x8b80)); |
| |
| /* IP */ |
| clk_dm(IMX8MN_CLK_USDHC1, |
| imx8m_clk_composite("usdhc1", imx8mn_usdhc1_sels, |
| base + 0xac00)); |
| clk_dm(IMX8MN_CLK_USDHC2, |
| imx8m_clk_composite("usdhc2", imx8mn_usdhc2_sels, |
| base + 0xac80)); |
| clk_dm(IMX8MN_CLK_I2C1, |
| imx8m_clk_composite("i2c1", imx8mn_i2c1_sels, base + 0xad00)); |
| clk_dm(IMX8MN_CLK_I2C2, |
| imx8m_clk_composite("i2c2", imx8mn_i2c2_sels, base + 0xad80)); |
| clk_dm(IMX8MN_CLK_I2C3, |
| imx8m_clk_composite("i2c3", imx8mn_i2c3_sels, base + 0xae00)); |
| clk_dm(IMX8MN_CLK_I2C4, |
| imx8m_clk_composite("i2c4", imx8mn_i2c4_sels, base + 0xae80)); |
| clk_dm(IMX8MN_CLK_WDOG, |
| imx8m_clk_composite("wdog", imx8mn_wdog_sels, base + 0xb900)); |
| clk_dm(IMX8MN_CLK_USDHC3, |
| imx8m_clk_composite("usdhc3", imx8mn_usdhc3_sels, |
| base + 0xbc80)); |
| clk_dm(IMX8MN_CLK_QSPI, |
| imx8m_clk_composite("qspi", imx8mn_qspi_sels, base + 0xab80)); |
| clk_dm(IMX8MN_CLK_USB_CORE_REF, |
| imx8m_clk_composite("usb_core_ref", imx8mn_usb_core_sels, base + 0xb100)); |
| clk_dm(IMX8MN_CLK_USB_PHY_REF, |
| imx8m_clk_composite("usb_phy_ref", imx8mn_usb_phy_sels, base + 0xb180)); |
| |
| clk_dm(IMX8MN_CLK_I2C1_ROOT, |
| imx_clk_gate4("i2c1_root_clk", "i2c1", base + 0x4170, 0)); |
| clk_dm(IMX8MN_CLK_I2C2_ROOT, |
| imx_clk_gate4("i2c2_root_clk", "i2c2", base + 0x4180, 0)); |
| clk_dm(IMX8MN_CLK_I2C3_ROOT, |
| imx_clk_gate4("i2c3_root_clk", "i2c3", base + 0x4190, 0)); |
| clk_dm(IMX8MN_CLK_I2C4_ROOT, |
| imx_clk_gate4("i2c4_root_clk", "i2c4", base + 0x41a0, 0)); |
| clk_dm(IMX8MN_CLK_OCOTP_ROOT, |
| imx_clk_gate4("ocotp_root_clk", "ipg_root", base + 0x4220, 0)); |
| clk_dm(IMX8MN_CLK_USDHC1_ROOT, |
| imx_clk_gate4("usdhc1_root_clk", "usdhc1", base + 0x4510, 0)); |
| clk_dm(IMX8MN_CLK_USDHC2_ROOT, |
| imx_clk_gate4("usdhc2_root_clk", "usdhc2", base + 0x4520, 0)); |
| clk_dm(IMX8MN_CLK_WDOG1_ROOT, |
| imx_clk_gate4("wdog1_root_clk", "wdog", base + 0x4530, 0)); |
| clk_dm(IMX8MN_CLK_WDOG2_ROOT, |
| imx_clk_gate4("wdog2_root_clk", "wdog", base + 0x4540, 0)); |
| clk_dm(IMX8MN_CLK_WDOG3_ROOT, |
| imx_clk_gate4("wdog3_root_clk", "wdog", base + 0x4550, 0)); |
| clk_dm(IMX8MN_CLK_USDHC3_ROOT, |
| imx_clk_gate4("usdhc3_root_clk", "usdhc3", base + 0x45e0, 0)); |
| clk_dm(IMX8MN_CLK_QSPI_ROOT, |
| imx_clk_gate4("qspi_root_clk", "qspi", base + 0x42f0, 0)); |
| clk_dm(IMX8MN_CLK_USB1_CTRL_ROOT, |
| imx_clk_gate4("usb1_ctrl_root_clk", "usb_bus", base + 0x44d0, 0)); |
| |
| /* clks not needed in SPL stage */ |
| #ifndef CONFIG_SPL_BUILD |
| clk_dm(IMX8MN_CLK_ENET_REF, |
| imx8m_clk_composite("enet_ref", imx8mn_enet_ref_sels, |
| base + 0xa980)); |
| clk_dm(IMX8MN_CLK_ENET_TIMER, |
| imx8m_clk_composite("enet_timer", imx8mn_enet_timer_sels, |
| base + 0xaa00)); |
| clk_dm(IMX8MN_CLK_ENET_PHY_REF, |
| imx8m_clk_composite("enet_phy", imx8mn_enet_phy_sels, |
| base + 0xaa80)); |
| clk_dm(IMX8MN_CLK_ENET1_ROOT, |
| imx_clk_gate4("enet1_root_clk", "enet_axi", |
| base + 0x40a0, 0)); |
| #endif |
| |
| #if CONFIG_IS_ENABLED(DM_SPI) |
| clk_dm(IMX8MN_CLK_ECSPI1, |
| imx8m_clk_composite("ecspi1", imx8mn_ecspi1_sels, base + 0xb280)); |
| clk_dm(IMX8MN_CLK_ECSPI2, |
| imx8m_clk_composite("ecspi2", imx8mn_ecspi2_sels, base + 0xb300)); |
| clk_dm(IMX8MN_CLK_ECSPI3, |
| imx8m_clk_composite("ecspi3", imx8mn_ecspi3_sels, base + 0xc180)); |
| clk_dm(IMX8MN_CLK_ECSPI1_ROOT, |
| imx_clk_gate4("ecspi1_root_clk", "ecspi1", base + 0x4070, 0)); |
| clk_dm(IMX8MN_CLK_ECSPI2_ROOT, |
| imx_clk_gate4("ecspi2_root_clk", "ecspi2", base + 0x4080, 0)); |
| clk_dm(IMX8MN_CLK_ECSPI3_ROOT, |
| imx_clk_gate4("ecspi3_root_clk", "ecspi3", base + 0x4090, 0)); |
| #endif |
| |
| return 0; |
| } |
| |
| static const struct udevice_id imx8mn_clk_ids[] = { |
| { .compatible = "fsl,imx8mn-ccm" }, |
| { }, |
| }; |
| |
| U_BOOT_DRIVER(imx8mn_clk) = { |
| .name = "clk_imx8mn", |
| .id = UCLASS_CLK, |
| .of_match = imx8mn_clk_ids, |
| .ops = &ccf_clk_ops, |
| .probe = imx8mn_clk_probe, |
| .flags = DM_FLAG_PRE_RELOC, |
| }; |