// SPDX-License-Identifier: GPL-2.0 /* * Copyright 2019 NXP * Peng Fan */ #include #include #include #include #include #include #include #include "clk.h" #define PLL_1416X_RATE(_rate, _m, _p, _s) \ { \ .rate = (_rate), \ .mdiv = (_m), \ .pdiv = (_p), \ .sdiv = (_s), \ } #define PLL_1443X_RATE(_rate, _m, _p, _s, _k) \ { \ .rate = (_rate), \ .mdiv = (_m), \ .pdiv = (_p), \ .sdiv = (_s), \ .kdiv = (_k), \ } static const struct imx_pll14xx_rate_table imx8mm_pll1416x_tbl[] = { PLL_1416X_RATE(1800000000U, 225, 3, 0), PLL_1416X_RATE(1600000000U, 200, 3, 0), PLL_1416X_RATE(1200000000U, 300, 3, 1), PLL_1416X_RATE(1000000000U, 250, 3, 1), PLL_1416X_RATE(800000000U, 200, 3, 1), PLL_1416X_RATE(750000000U, 250, 2, 2), PLL_1416X_RATE(700000000U, 350, 3, 2), PLL_1416X_RATE(600000000U, 300, 3, 2), }; static const struct imx_pll14xx_rate_table imx8mm_drampll_tbl[] = { PLL_1443X_RATE(650000000U, 325, 3, 2, 0), }; static struct imx_pll14xx_clk imx8mm_dram_pll __initdata = { .type = PLL_1443X, .rate_table = imx8mm_drampll_tbl, .rate_count = ARRAY_SIZE(imx8mm_drampll_tbl), }; static struct imx_pll14xx_clk imx8mm_arm_pll __initdata = { .type = PLL_1416X, .rate_table = imx8mm_pll1416x_tbl, .rate_count = ARRAY_SIZE(imx8mm_pll1416x_tbl), }; static struct imx_pll14xx_clk imx8mm_sys_pll __initdata = { .type = PLL_1416X, .rate_table = imx8mm_pll1416x_tbl, .rate_count = ARRAY_SIZE(imx8mm_pll1416x_tbl), }; 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 *imx8mm_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 *imx8mm_ahb_sels[] = {"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 *imx8mm_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 *imx8mm_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 *imx8mm_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 *imx8mm_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 *imx8mm_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 *imx8mm_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 *imx8mm_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", }; static const char *imx8mm_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 *imx8mm_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 *imx8mm_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 *imx8mm_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 *imx8mm_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 *imx8mm_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 ulong imx8mm_clk_get_rate(struct clk *clk) { struct clk *c; int ret; debug("%s(#%lu)\n", __func__, clk->id); ret = clk_get_by_id(clk->id, &c); if (ret) return ret; return clk_get_rate(c); } static ulong imx8mm_clk_set_rate(struct clk *clk, unsigned long rate) { struct clk *c; int ret; debug("%s(#%lu), rate: %lu\n", __func__, clk->id, rate); ret = clk_get_by_id(clk->id, &c); if (ret) return ret; return clk_set_rate(c, rate); } static int __imx8mm_clk_enable(struct clk *clk, bool enable) { struct clk *c; int ret; debug("%s(#%lu) en: %d\n", __func__, clk->id, enable); ret = clk_get_by_id(clk->id, &c); if (ret) return ret; if (enable) ret = clk_enable(c); else ret = clk_disable(c); return ret; } static int imx8mm_clk_disable(struct clk *clk) { return __imx8mm_clk_enable(clk, 0); } static int imx8mm_clk_enable(struct clk *clk) { return __imx8mm_clk_enable(clk, 1); } static int imx8mm_clk_set_parent(struct clk *clk, struct clk *parent) { struct clk *c, *cp; int ret; debug("%s(#%lu), parent: %lu\n", __func__, clk->id, parent->id); ret = clk_get_by_id(clk->id, &c); if (ret) return ret; ret = clk_get_by_id(parent->id, &cp); if (ret) return ret; return clk_set_parent(c, cp); } static struct clk_ops imx8mm_clk_ops = { .set_rate = imx8mm_clk_set_rate, .get_rate = imx8mm_clk_get_rate, .enable = imx8mm_clk_enable, .disable = imx8mm_clk_disable, .set_parent = imx8mm_clk_set_parent, }; static int imx8mm_clk_probe(struct udevice *dev) { void __iomem *base; base = (void *)ANATOP_BASE_ADDR; clk_dm(IMX8MM_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(IMX8MM_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(IMX8MM_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(IMX8MM_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(IMX8MM_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(IMX8MM_DRAM_PLL, imx_clk_pll14xx("dram_pll", "dram_pll_ref_sel", base + 0x50, &imx8mm_dram_pll)); clk_dm(IMX8MM_ARM_PLL, imx_clk_pll14xx("arm_pll", "arm_pll_ref_sel", base + 0x84, &imx8mm_arm_pll)); clk_dm(IMX8MM_SYS_PLL1, imx_clk_pll14xx("sys_pll1", "sys_pll1_ref_sel", base + 0x94, &imx8mm_sys_pll)); clk_dm(IMX8MM_SYS_PLL2, imx_clk_pll14xx("sys_pll2", "sys_pll2_ref_sel", base + 0x104, &imx8mm_sys_pll)); clk_dm(IMX8MM_SYS_PLL3, imx_clk_pll14xx("sys_pll3", "sys_pll3_ref_sel", base + 0x114, &imx8mm_sys_pll)); /* PLL bypass out */ clk_dm(IMX8MM_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(IMX8MM_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(IMX8MM_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(IMX8MM_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(IMX8MM_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(IMX8MM_DRAM_PLL_OUT, imx_clk_gate("dram_pll_out", "dram_pll_bypass", base + 0x50, 13)); clk_dm(IMX8MM_ARM_PLL_OUT, imx_clk_gate("arm_pll_out", "arm_pll_bypass", base + 0x84, 11)); clk_dm(IMX8MM_SYS_PLL1_OUT, imx_clk_gate("sys_pll1_out", "sys_pll1_bypass", base + 0x94, 11)); clk_dm(IMX8MM_SYS_PLL2_OUT, imx_clk_gate("sys_pll2_out", "sys_pll2_bypass", base + 0x104, 11)); clk_dm(IMX8MM_SYS_PLL3_OUT, imx_clk_gate("sys_pll3_out", "sys_pll3_bypass", base + 0x114, 11)); /* SYS PLL fixed output */ clk_dm(IMX8MM_SYS_PLL1_40M, imx_clk_fixed_factor("sys_pll1_40m", "sys_pll1_out", 1, 20)); clk_dm(IMX8MM_SYS_PLL1_80M, imx_clk_fixed_factor("sys_pll1_80m", "sys_pll1_out", 1, 10)); clk_dm(IMX8MM_SYS_PLL1_100M, imx_clk_fixed_factor("sys_pll1_100m", "sys_pll1_out", 1, 8)); clk_dm(IMX8MM_SYS_PLL1_133M, imx_clk_fixed_factor("sys_pll1_133m", "sys_pll1_out", 1, 6)); clk_dm(IMX8MM_SYS_PLL1_160M, imx_clk_fixed_factor("sys_pll1_160m", "sys_pll1_out", 1, 5)); clk_dm(IMX8MM_SYS_PLL1_200M, imx_clk_fixed_factor("sys_pll1_200m", "sys_pll1_out", 1, 4)); clk_dm(IMX8MM_SYS_PLL1_266M, imx_clk_fixed_factor("sys_pll1_266m", "sys_pll1_out", 1, 3)); clk_dm(IMX8MM_SYS_PLL1_400M, imx_clk_fixed_factor("sys_pll1_400m", "sys_pll1_out", 1, 2)); clk_dm(IMX8MM_SYS_PLL1_800M, imx_clk_fixed_factor("sys_pll1_800m", "sys_pll1_out", 1, 1)); clk_dm(IMX8MM_SYS_PLL2_50M, imx_clk_fixed_factor("sys_pll2_50m", "sys_pll2_out", 1, 20)); clk_dm(IMX8MM_SYS_PLL2_100M, imx_clk_fixed_factor("sys_pll2_100m", "sys_pll2_out", 1, 10)); clk_dm(IMX8MM_SYS_PLL2_125M, imx_clk_fixed_factor("sys_pll2_125m", "sys_pll2_out", 1, 8)); clk_dm(IMX8MM_SYS_PLL2_166M, imx_clk_fixed_factor("sys_pll2_166m", "sys_pll2_out", 1, 6)); clk_dm(IMX8MM_SYS_PLL2_200M, imx_clk_fixed_factor("sys_pll2_200m", "sys_pll2_out", 1, 5)); clk_dm(IMX8MM_SYS_PLL2_250M, imx_clk_fixed_factor("sys_pll2_250m", "sys_pll2_out", 1, 4)); clk_dm(IMX8MM_SYS_PLL2_333M, imx_clk_fixed_factor("sys_pll2_333m", "sys_pll2_out", 1, 3)); clk_dm(IMX8MM_SYS_PLL2_500M, imx_clk_fixed_factor("sys_pll2_500m", "sys_pll2_out", 1, 2)); clk_dm(IMX8MM_SYS_PLL2_1000M, imx_clk_fixed_factor("sys_pll2_1000m", "sys_pll2_out", 1, 1)); base = dev_read_addr_ptr(dev); if (base == (void *)FDT_ADDR_T_NONE) return -EINVAL; clk_dm(IMX8MM_CLK_A53_SRC, imx_clk_mux2("arm_a53_src", base + 0x8000, 24, 3, imx8mm_a53_sels, ARRAY_SIZE(imx8mm_a53_sels))); clk_dm(IMX8MM_CLK_A53_CG, imx_clk_gate3("arm_a53_cg", "arm_a53_src", base + 0x8000, 28)); clk_dm(IMX8MM_CLK_A53_DIV, imx_clk_divider2("arm_a53_div", "arm_a53_cg", base + 0x8000, 0, 3)); clk_dm(IMX8MM_CLK_AHB, imx8m_clk_composite_critical("ahb", imx8mm_ahb_sels, base + 0x9000)); clk_dm(IMX8MM_CLK_IPG_ROOT, imx_clk_divider2("ipg_root", "ahb", base + 0x9080, 0, 1)); clk_dm(IMX8MM_CLK_ENET_AXI, imx8m_clk_composite("enet_axi", imx8mm_enet_axi_sels, base + 0x8880)); clk_dm(IMX8MM_CLK_NAND_USDHC_BUS, imx8m_clk_composite_critical("nand_usdhc_bus", imx8mm_nand_usdhc_sels, base + 0x8900)); /* IP */ clk_dm(IMX8MM_CLK_USDHC1, imx8m_clk_composite("usdhc1", imx8mm_usdhc1_sels, base + 0xac00)); clk_dm(IMX8MM_CLK_USDHC2, imx8m_clk_composite("usdhc2", imx8mm_usdhc2_sels, base + 0xac80)); clk_dm(IMX8MM_CLK_I2C1, imx8m_clk_composite("i2c1", imx8mm_i2c1_sels, base + 0xad00)); clk_dm(IMX8MM_CLK_I2C2, imx8m_clk_composite("i2c2", imx8mm_i2c2_sels, base + 0xad80)); clk_dm(IMX8MM_CLK_I2C3, imx8m_clk_composite("i2c3", imx8mm_i2c3_sels, base + 0xae00)); clk_dm(IMX8MM_CLK_I2C4, imx8m_clk_composite("i2c4", imx8mm_i2c4_sels, base + 0xae80)); clk_dm(IMX8MM_CLK_WDOG, imx8m_clk_composite("wdog", imx8mm_wdog_sels, base + 0xb900)); clk_dm(IMX8MM_CLK_USDHC3, imx8m_clk_composite("usdhc3", imx8mm_usdhc3_sels, base + 0xbc80)); clk_dm(IMX8MM_CLK_I2C1_ROOT, imx_clk_gate4("i2c1_root_clk", "i2c1", base + 0x4170, 0)); clk_dm(IMX8MM_CLK_I2C2_ROOT, imx_clk_gate4("i2c2_root_clk", "i2c2", base + 0x4180, 0)); clk_dm(IMX8MM_CLK_I2C3_ROOT, imx_clk_gate4("i2c3_root_clk", "i2c3", base + 0x4190, 0)); clk_dm(IMX8MM_CLK_I2C4_ROOT, imx_clk_gate4("i2c4_root_clk", "i2c4", base + 0x41a0, 0)); clk_dm(IMX8MM_CLK_OCOTP_ROOT, imx_clk_gate4("ocotp_root_clk", "ipg_root", base + 0x4220, 0)); clk_dm(IMX8MM_CLK_USDHC1_ROOT, imx_clk_gate4("usdhc1_root_clk", "usdhc1", base + 0x4510, 0)); clk_dm(IMX8MM_CLK_USDHC2_ROOT, imx_clk_gate4("usdhc2_root_clk", "usdhc2", base + 0x4520, 0)); clk_dm(IMX8MM_CLK_WDOG1_ROOT, imx_clk_gate4("wdog1_root_clk", "wdog", base + 0x4530, 0)); clk_dm(IMX8MM_CLK_WDOG2_ROOT, imx_clk_gate4("wdog2_root_clk", "wdog", base + 0x4540, 0)); clk_dm(IMX8MM_CLK_WDOG3_ROOT, imx_clk_gate4("wdog3_root_clk", "wdog", base + 0x4550, 0)); clk_dm(IMX8MM_CLK_USDHC3_ROOT, imx_clk_gate4("usdhc3_root_clk", "usdhc3", base + 0x45e0, 0)); /* clks not needed in SPL stage */ #ifndef CONFIG_SPL_BUILD clk_dm(IMX8MM_CLK_ENET_REF, imx8m_clk_composite("enet_ref", imx8mm_enet_ref_sels, base + 0xa980)); clk_dm(IMX8MM_CLK_ENET_TIMER, imx8m_clk_composite("enet_timer", imx8mm_enet_timer_sels, base + 0xaa00)); clk_dm(IMX8MM_CLK_ENET_PHY_REF, imx8m_clk_composite("enet_phy", imx8mm_enet_phy_sels, base + 0xaa80)); clk_dm(IMX8MM_CLK_ENET1_ROOT, imx_clk_gate4("enet1_root_clk", "enet_axi", base + 0x40a0, 0)); #endif #ifdef CONFIG_SPL_BUILD struct clk *clkp, *clkp1; clk_get_by_id(IMX8MM_CLK_WDOG1_ROOT, &clkp); clk_enable(clkp); clk_get_by_id(IMX8MM_CLK_WDOG2_ROOT, &clkp); clk_enable(clkp); clk_get_by_id(IMX8MM_CLK_WDOG3_ROOT, &clkp); clk_enable(clkp); /* Configure SYS_PLL3 to 750MHz */ clk_get_by_id(IMX8MM_SYS_PLL3, &clkp); clk_set_rate(clkp, 750000000UL); clk_enable(clkp); /* Configure ARM to sys_pll2_500m */ clk_get_by_id(IMX8MM_CLK_A53_SRC, &clkp); clk_get_by_id(IMX8MM_SYS_PLL2_OUT, &clkp1); clk_enable(clkp1); clk_get_by_id(IMX8MM_SYS_PLL2_500M, &clkp1); clk_set_parent(clkp, clkp1); /* Configure ARM PLL to 1.2GHz */ clk_get_by_id(IMX8MM_ARM_PLL, &clkp1); clk_set_rate(clkp1, 1200000000UL); clk_get_by_id(IMX8MM_ARM_PLL_OUT, &clkp1); clk_enable(clkp1); clk_set_parent(clkp, clkp1); /* Configure DIV to 1.2GHz */ clk_get_by_id(IMX8MM_CLK_A53_DIV, &clkp1); clk_set_rate(clkp1, 1200000000UL); #endif return 0; } static const struct udevice_id imx8mm_clk_ids[] = { { .compatible = "fsl,imx8mm-ccm" }, { }, }; U_BOOT_DRIVER(imx8mm_clk) = { .name = "clk_imx8mm", .id = UCLASS_CLK, .of_match = imx8mm_clk_ids, .ops = &imx8mm_clk_ops, .probe = imx8mm_clk_probe, .flags = DM_FLAG_PRE_RELOC, };