| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Copyright (C) 2017, Intel Corporation |
| */ |
| #include <linux/slab.h> |
| #include <linux/clk-provider.h> |
| #include <linux/of.h> |
| #include <linux/platform_device.h> |
| |
| #include <dt-bindings/clock/stratix10-clock.h> |
| |
| #include "stratix10-clk.h" |
| |
| static const struct clk_parent_data pll_mux[] = { |
| { .fw_name = "osc1", |
| .name = "osc1" }, |
| { .fw_name = "cb-intosc-hs-div2-clk", |
| .name = "cb-intosc-hs-div2-clk" }, |
| { .fw_name = "f2s-free-clk", |
| .name = "f2s-free-clk" }, |
| }; |
| |
| static const struct clk_parent_data cntr_mux[] = { |
| { .fw_name = "main_pll", |
| .name = "main_pll", }, |
| { .fw_name = "periph_pll", |
| .name = "periph_pll", }, |
| { .fw_name = "osc1", |
| .name = "osc1", }, |
| { .fw_name = "cb-intosc-hs-div2-clk", |
| .name = "cb-intosc-hs-div2-clk", }, |
| { .fw_name = "f2s-free-clk", |
| .name = "f2s-free-clk", }, |
| }; |
| |
| static const struct clk_parent_data boot_mux[] = { |
| { .fw_name = "osc1", |
| .name = "osc1" }, |
| { .fw_name = "cb-intosc-hs-div2-clk", |
| .name = "cb-intosc-hs-div2-clk" }, |
| }; |
| |
| static const struct clk_parent_data noc_free_mux[] = { |
| { .fw_name = "main_noc_base_clk", |
| .name = "main_noc_base_clk", }, |
| { .fw_name = "peri_noc_base_clk", |
| .name = "peri_noc_base_clk", }, |
| { .fw_name = "osc1", |
| .name = "osc1", }, |
| { .fw_name = "cb-intosc-hs-div2-clk", |
| .name = "cb-intosc-hs-div2-clk", }, |
| { .fw_name = "f2s-free-clk", |
| .name = "f2s-free-clk", }, |
| }; |
| |
| static const struct clk_parent_data emaca_free_mux[] = { |
| { .fw_name = "peri_emaca_clk", |
| .name = "peri_emaca_clk", }, |
| { .fw_name = "boot_clk", |
| .name = "boot_clk", }, |
| }; |
| |
| static const struct clk_parent_data emacb_free_mux[] = { |
| { .fw_name = "peri_emacb_clk", |
| .name = "peri_emacb_clk", }, |
| { .fw_name = "boot_clk", |
| .name = "boot_clk", }, |
| }; |
| |
| static const struct clk_parent_data emac_ptp_free_mux[] = { |
| { .fw_name = "peri_emac_ptp_clk", |
| .name = "peri_emac_ptp_clk", }, |
| { .fw_name = "boot_clk", |
| .name = "boot_clk", }, |
| }; |
| |
| static const struct clk_parent_data gpio_db_free_mux[] = { |
| { .fw_name = "peri_gpio_db_clk", |
| .name = "peri_gpio_db_clk", }, |
| { .fw_name = "boot_clk", |
| .name = "boot_clk", }, |
| }; |
| |
| static const struct clk_parent_data sdmmc_free_mux[] = { |
| { .fw_name = "main_sdmmc_clk", |
| .name = "main_sdmmc_clk", }, |
| { .fw_name = "boot_clk", |
| .name = "boot_clk", }, |
| }; |
| |
| static const struct clk_parent_data s2f_usr1_free_mux[] = { |
| { .fw_name = "peri_s2f_usr1_clk", |
| .name = "peri_s2f_usr1_clk", }, |
| { .fw_name = "boot_clk", |
| .name = "boot_clk", }, |
| }; |
| |
| static const struct clk_parent_data psi_ref_free_mux[] = { |
| { .fw_name = "peri_psi_ref_clk", |
| .name = "peri_psi_ref_clk", }, |
| { .fw_name = "boot_clk", |
| .name = "boot_clk", }, |
| }; |
| |
| static const struct clk_parent_data mpu_mux[] = { |
| { .fw_name = "mpu_free_clk", |
| .name = "mpu_free_clk", }, |
| { .fw_name = "boot_clk", |
| .name = "boot_clk", }, |
| }; |
| |
| static const struct clk_parent_data s2f_usr0_mux[] = { |
| { .fw_name = "f2s-free-clk", |
| .name = "f2s-free-clk", }, |
| { .fw_name = "boot_clk", |
| .name = "boot_clk", }, |
| }; |
| |
| static const struct clk_parent_data emac_mux[] = { |
| { .fw_name = "emaca_free_clk", |
| .name = "emaca_free_clk", }, |
| { .fw_name = "emacb_free_clk", |
| .name = "emacb_free_clk", }, |
| }; |
| |
| static const struct clk_parent_data noc_mux[] = { |
| { .fw_name = "noc_free_clk", |
| .name = "noc_free_clk", }, |
| { .fw_name = "boot_clk", |
| .name = "boot_clk", }, |
| }; |
| |
| static const struct clk_parent_data mpu_free_mux[] = { |
| { .fw_name = "main_mpu_base_clk", |
| .name = "main_mpu_base_clk", }, |
| { .fw_name = "peri_mpu_base_clk", |
| .name = "peri_mpu_base_clk", }, |
| { .fw_name = "osc1", |
| .name = "osc1", }, |
| { .fw_name = "cb-intosc-hs-div2-clk", |
| .name = "cb-intosc-hs-div2-clk", }, |
| { .fw_name = "f2s-free-clk", |
| .name = "f2s-free-clk", }, |
| }; |
| |
| static const struct clk_parent_data sdmmc_mux[] = { |
| { .fw_name = "sdmmc_free_clk", |
| .name = "sdmmc_free_clk", }, |
| { .fw_name = "boot_clk", |
| .name = "boot_clk", }, |
| }; |
| |
| static const struct clk_parent_data s2f_user1_mux[] = { |
| { .fw_name = "s2f_user1_free_clk", |
| .name = "s2f_user1_free_clk", }, |
| { .fw_name = "boot_clk", |
| .name = "boot_clk", }, |
| }; |
| |
| static const struct clk_parent_data psi_mux[] = { |
| { .fw_name = "psi_ref_free_clk", |
| .name = "psi_ref_free_clk", }, |
| { .fw_name = "boot_clk", |
| .name = "boot_clk", }, |
| }; |
| |
| static const struct clk_parent_data gpio_db_mux[] = { |
| { .fw_name = "gpio_db_free_clk", |
| .name = "gpio_db_free_clk", }, |
| { .fw_name = "boot_clk", |
| .name = "boot_clk", }, |
| }; |
| |
| static const struct clk_parent_data emac_ptp_mux[] = { |
| { .fw_name = "emac_ptp_free_clk", |
| .name = "emac_ptp_free_clk", }, |
| { .fw_name = "boot_clk", |
| .name = "boot_clk", }, |
| }; |
| |
| /* clocks in AO (always on) controller */ |
| static const struct stratix10_pll_clock s10_pll_clks[] = { |
| { STRATIX10_BOOT_CLK, "boot_clk", boot_mux, ARRAY_SIZE(boot_mux), 0, |
| 0x0}, |
| { STRATIX10_MAIN_PLL_CLK, "main_pll", pll_mux, ARRAY_SIZE(pll_mux), |
| 0, 0x74}, |
| { STRATIX10_PERIPH_PLL_CLK, "periph_pll", pll_mux, ARRAY_SIZE(pll_mux), |
| 0, 0xe4}, |
| }; |
| |
| static const struct stratix10_perip_c_clock s10_main_perip_c_clks[] = { |
| { STRATIX10_MAIN_MPU_BASE_CLK, "main_mpu_base_clk", "main_pll", NULL, 1, 0, 0x84}, |
| { STRATIX10_MAIN_NOC_BASE_CLK, "main_noc_base_clk", "main_pll", NULL, 1, 0, 0x88}, |
| { STRATIX10_PERI_MPU_BASE_CLK, "peri_mpu_base_clk", "periph_pll", NULL, 1, 0, |
| 0xF4}, |
| { STRATIX10_PERI_NOC_BASE_CLK, "peri_noc_base_clk", "periph_pll", NULL, 1, 0, |
| 0xF8}, |
| }; |
| |
| static const struct stratix10_perip_cnt_clock s10_main_perip_cnt_clks[] = { |
| { STRATIX10_MPU_FREE_CLK, "mpu_free_clk", NULL, mpu_free_mux, ARRAY_SIZE(mpu_free_mux), |
| 0, 0x48, 0, 0, 0}, |
| { STRATIX10_NOC_FREE_CLK, "noc_free_clk", NULL, noc_free_mux, ARRAY_SIZE(noc_free_mux), |
| 0, 0x4C, 0, 0x3C, 1}, |
| { STRATIX10_MAIN_EMACA_CLK, "main_emaca_clk", "main_noc_base_clk", NULL, 1, 0, |
| 0x50, 0, 0, 0}, |
| { STRATIX10_MAIN_EMACB_CLK, "main_emacb_clk", "main_noc_base_clk", NULL, 1, 0, |
| 0x54, 0, 0, 0}, |
| { STRATIX10_MAIN_EMAC_PTP_CLK, "main_emac_ptp_clk", "main_noc_base_clk", NULL, 1, 0, |
| 0x58, 0, 0, 0}, |
| { STRATIX10_MAIN_GPIO_DB_CLK, "main_gpio_db_clk", "main_noc_base_clk", NULL, 1, 0, |
| 0x5C, 0, 0, 0}, |
| { STRATIX10_MAIN_SDMMC_CLK, "main_sdmmc_clk", "main_noc_base_clk", NULL, 1, 0, |
| 0x60, 0, 0, 0}, |
| { STRATIX10_MAIN_S2F_USR0_CLK, "main_s2f_usr0_clk", NULL, cntr_mux, ARRAY_SIZE(cntr_mux), |
| 0, 0x64, 0, 0, 0}, |
| { STRATIX10_MAIN_S2F_USR1_CLK, "main_s2f_usr1_clk", "main_noc_base_clk", NULL, 1, 0, |
| 0x68, 0, 0, 0}, |
| { STRATIX10_MAIN_PSI_REF_CLK, "main_psi_ref_clk", "main_noc_base_clk", NULL, 1, 0, |
| 0x6C, 0, 0, 0}, |
| { STRATIX10_PERI_EMACA_CLK, "peri_emaca_clk", NULL, cntr_mux, ARRAY_SIZE(cntr_mux), |
| 0, 0xBC, 0, 0, 0}, |
| { STRATIX10_PERI_EMACB_CLK, "peri_emacb_clk", NULL, cntr_mux, ARRAY_SIZE(cntr_mux), |
| 0, 0xC0, 0, 0, 0}, |
| { STRATIX10_PERI_EMAC_PTP_CLK, "peri_emac_ptp_clk", NULL, cntr_mux, ARRAY_SIZE(cntr_mux), |
| 0, 0xC4, 0, 0, 0}, |
| { STRATIX10_PERI_GPIO_DB_CLK, "peri_gpio_db_clk", NULL, cntr_mux, ARRAY_SIZE(cntr_mux), |
| 0, 0xC8, 0, 0, 0}, |
| { STRATIX10_PERI_SDMMC_CLK, "peri_sdmmc_clk", NULL, cntr_mux, ARRAY_SIZE(cntr_mux), |
| 0, 0xCC, 0, 0, 0}, |
| { STRATIX10_PERI_S2F_USR0_CLK, "peri_s2f_usr0_clk", "peri_noc_base_clk", NULL, 1, 0, |
| 0xD0, 0, 0, 0}, |
| { STRATIX10_PERI_S2F_USR1_CLK, "peri_s2f_usr1_clk", NULL, cntr_mux, ARRAY_SIZE(cntr_mux), |
| 0, 0xD4, 0, 0, 0}, |
| { STRATIX10_PERI_PSI_REF_CLK, "peri_psi_ref_clk", "peri_noc_base_clk", NULL, 1, 0, |
| 0xD8, 0, 0, 0}, |
| { STRATIX10_L4_SYS_FREE_CLK, "l4_sys_free_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0, |
| 0, 4, 0x3C, 1}, |
| { STRATIX10_EMAC_A_FREE_CLK, "emaca_free_clk", NULL, emaca_free_mux, ARRAY_SIZE(emaca_free_mux), |
| 0, 0, 2, 0xB0, 0}, |
| { STRATIX10_EMAC_B_FREE_CLK, "emacb_free_clk", NULL, emacb_free_mux, ARRAY_SIZE(emacb_free_mux), |
| 0, 0, 2, 0xB0, 1}, |
| { STRATIX10_EMAC_PTP_FREE_CLK, "emac_ptp_free_clk", NULL, emac_ptp_free_mux, |
| ARRAY_SIZE(emac_ptp_free_mux), 0, 0, 2, 0xB0, 2}, |
| { STRATIX10_GPIO_DB_FREE_CLK, "gpio_db_free_clk", NULL, gpio_db_free_mux, |
| ARRAY_SIZE(gpio_db_free_mux), 0, 0, 0, 0xB0, 3}, |
| { STRATIX10_SDMMC_FREE_CLK, "sdmmc_free_clk", NULL, sdmmc_free_mux, |
| ARRAY_SIZE(sdmmc_free_mux), 0, 0, 0, 0xB0, 4}, |
| { STRATIX10_S2F_USER1_FREE_CLK, "s2f_user1_free_clk", NULL, s2f_usr1_free_mux, |
| ARRAY_SIZE(s2f_usr1_free_mux), 0, 0, 0, 0xB0, 5}, |
| { STRATIX10_PSI_REF_FREE_CLK, "psi_ref_free_clk", NULL, psi_ref_free_mux, |
| ARRAY_SIZE(psi_ref_free_mux), 0, 0, 0, 0xB0, 6}, |
| }; |
| |
| static const struct stratix10_gate_clock s10_gate_clks[] = { |
| { STRATIX10_MPU_CLK, "mpu_clk", NULL, mpu_mux, ARRAY_SIZE(mpu_mux), 0, 0x30, |
| 0, 0, 0, 0, 0x3C, 0, 0}, |
| { STRATIX10_MPU_PERIPH_CLK, "mpu_periph_clk", "mpu_clk", NULL, 1, 0, 0x30, |
| 0, 0, 0, 0, 0, 0, 4}, |
| { STRATIX10_MPU_L2RAM_CLK, "mpu_l2ram_clk", "mpu_clk", NULL, 1, 0, 0x30, |
| 0, 0, 0, 0, 0, 0, 2}, |
| { STRATIX10_L4_MAIN_CLK, "l4_main_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0, 0x30, |
| 1, 0x70, 0, 2, 0x3C, 1, 0}, |
| { STRATIX10_L4_MP_CLK, "l4_mp_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0, 0x30, |
| 2, 0x70, 8, 2, 0x3C, 1, 0}, |
| { STRATIX10_L4_SP_CLK, "l4_sp_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), CLK_IS_CRITICAL, 0x30, |
| 3, 0x70, 16, 2, 0x3C, 1, 0}, |
| { STRATIX10_CS_AT_CLK, "cs_at_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0, 0x30, |
| 4, 0x70, 24, 2, 0x3C, 1, 0}, |
| { STRATIX10_CS_TRACE_CLK, "cs_trace_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0, 0x30, |
| 4, 0x70, 26, 2, 0x3C, 1, 0}, |
| { STRATIX10_CS_PDBG_CLK, "cs_pdbg_clk", "cs_at_clk", NULL, 1, 0, 0x30, |
| 4, 0x70, 28, 1, 0, 0, 0}, |
| { STRATIX10_CS_TIMER_CLK, "cs_timer_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0, 0x30, |
| 5, 0, 0, 0, 0x3C, 1, 0}, |
| { STRATIX10_S2F_USER0_CLK, "s2f_user0_clk", NULL, s2f_usr0_mux, ARRAY_SIZE(s2f_usr0_mux), 0, 0x30, |
| 6, 0, 0, 0, 0, 0, 0}, |
| { STRATIX10_EMAC0_CLK, "emac0_clk", NULL, emac_mux, ARRAY_SIZE(emac_mux), 0, 0xA4, |
| 0, 0, 0, 0, 0xDC, 26, 0}, |
| { STRATIX10_EMAC1_CLK, "emac1_clk", NULL, emac_mux, ARRAY_SIZE(emac_mux), 0, 0xA4, |
| 1, 0, 0, 0, 0xDC, 27, 0}, |
| { STRATIX10_EMAC2_CLK, "emac2_clk", NULL, emac_mux, ARRAY_SIZE(emac_mux), 0, 0xA4, |
| 2, 0, 0, 0, 0xDC, 28, 0}, |
| { STRATIX10_EMAC_PTP_CLK, "emac_ptp_clk", NULL, emac_ptp_mux, ARRAY_SIZE(emac_ptp_mux), 0, 0xA4, |
| 3, 0, 0, 0, 0xB0, 2, 0}, |
| { STRATIX10_GPIO_DB_CLK, "gpio_db_clk", NULL, gpio_db_mux, ARRAY_SIZE(gpio_db_mux), 0, 0xA4, |
| 4, 0xE0, 0, 16, 0xB0, 3, 0}, |
| { STRATIX10_SDMMC_CLK, "sdmmc_clk", NULL, sdmmc_mux, ARRAY_SIZE(sdmmc_mux), 0, 0xA4, |
| 5, 0, 0, 0, 0xB0, 4, 4}, |
| { STRATIX10_S2F_USER1_CLK, "s2f_user1_clk", NULL, s2f_user1_mux, ARRAY_SIZE(s2f_user1_mux), 0, 0xA4, |
| 6, 0, 0, 0, 0xB0, 5, 0}, |
| { STRATIX10_PSI_REF_CLK, "psi_ref_clk", NULL, psi_mux, ARRAY_SIZE(psi_mux), 0, 0xA4, |
| 7, 0, 0, 0, 0xB0, 6, 0}, |
| { STRATIX10_USB_CLK, "usb_clk", "l4_mp_clk", NULL, 1, 0, 0xA4, |
| 8, 0, 0, 0, 0, 0, 0}, |
| { STRATIX10_SPI_M_CLK, "spi_m_clk", "l4_mp_clk", NULL, 1, 0, 0xA4, |
| 9, 0, 0, 0, 0, 0, 0}, |
| { STRATIX10_NAND_X_CLK, "nand_x_clk", "l4_mp_clk", NULL, 1, 0, 0xA4, |
| 10, 0, 0, 0, 0, 0, 0}, |
| { STRATIX10_NAND_CLK, "nand_clk", "nand_x_clk", NULL, 1, 0, 0xA4, |
| 10, 0, 0, 0, 0, 0, 4}, |
| { STRATIX10_NAND_ECC_CLK, "nand_ecc_clk", "nand_x_clk", NULL, 1, 0, 0xA4, |
| 10, 0, 0, 0, 0, 0, 4}, |
| }; |
| |
| static int s10_clk_register_c_perip(const struct stratix10_perip_c_clock *clks, |
| int nums, struct stratix10_clock_data *data) |
| { |
| struct clk_hw *hw_clk; |
| void __iomem *base = data->base; |
| int i; |
| |
| for (i = 0; i < nums; i++) { |
| hw_clk = s10_register_periph(&clks[i], base); |
| if (IS_ERR(hw_clk)) { |
| pr_err("%s: failed to register clock %s\n", |
| __func__, clks[i].name); |
| continue; |
| } |
| data->clk_data.hws[clks[i].id] = hw_clk; |
| } |
| return 0; |
| } |
| |
| static int s10_clk_register_cnt_perip(const struct stratix10_perip_cnt_clock *clks, |
| int nums, struct stratix10_clock_data *data) |
| { |
| struct clk_hw *hw_clk; |
| void __iomem *base = data->base; |
| int i; |
| |
| for (i = 0; i < nums; i++) { |
| hw_clk = s10_register_cnt_periph(&clks[i], base); |
| if (IS_ERR(hw_clk)) { |
| pr_err("%s: failed to register clock %s\n", |
| __func__, clks[i].name); |
| continue; |
| } |
| data->clk_data.hws[clks[i].id] = hw_clk; |
| } |
| |
| return 0; |
| } |
| |
| static int s10_clk_register_gate(const struct stratix10_gate_clock *clks, |
| int nums, struct stratix10_clock_data *data) |
| { |
| struct clk_hw *hw_clk; |
| void __iomem *base = data->base; |
| int i; |
| |
| for (i = 0; i < nums; i++) { |
| hw_clk = s10_register_gate(&clks[i], base); |
| if (IS_ERR(hw_clk)) { |
| pr_err("%s: failed to register clock %s\n", |
| __func__, clks[i].name); |
| continue; |
| } |
| data->clk_data.hws[clks[i].id] = hw_clk; |
| } |
| |
| return 0; |
| } |
| |
| static int s10_clk_register_pll(const struct stratix10_pll_clock *clks, |
| int nums, struct stratix10_clock_data *data) |
| { |
| struct clk_hw *hw_clk; |
| void __iomem *base = data->base; |
| int i; |
| |
| for (i = 0; i < nums; i++) { |
| hw_clk = s10_register_pll(&clks[i], base); |
| if (IS_ERR(hw_clk)) { |
| pr_err("%s: failed to register clock %s\n", |
| __func__, clks[i].name); |
| continue; |
| } |
| data->clk_data.hws[clks[i].id] = hw_clk; |
| } |
| |
| return 0; |
| } |
| |
| static int s10_clkmgr_init(struct platform_device *pdev) |
| { |
| struct device_node *np = pdev->dev.of_node; |
| struct device *dev = &pdev->dev; |
| struct stratix10_clock_data *clk_data; |
| void __iomem *base; |
| int i, num_clks; |
| |
| base = devm_platform_ioremap_resource(pdev, 0); |
| if (IS_ERR(base)) { |
| pr_err("%s: failed to map clock registers\n", __func__); |
| return PTR_ERR(base); |
| } |
| |
| num_clks = STRATIX10_NUM_CLKS; |
| clk_data = devm_kzalloc(dev, struct_size(clk_data, clk_data.hws, |
| num_clks), GFP_KERNEL); |
| if (!clk_data) |
| return -ENOMEM; |
| |
| clk_data->base = base; |
| clk_data->clk_data.num = num_clks; |
| |
| for (i = 0; i < num_clks; i++) |
| clk_data->clk_data.hws[i] = ERR_PTR(-ENOENT); |
| |
| s10_clk_register_pll(s10_pll_clks, ARRAY_SIZE(s10_pll_clks), clk_data); |
| |
| s10_clk_register_c_perip(s10_main_perip_c_clks, |
| ARRAY_SIZE(s10_main_perip_c_clks), clk_data); |
| |
| s10_clk_register_cnt_perip(s10_main_perip_cnt_clks, |
| ARRAY_SIZE(s10_main_perip_cnt_clks), |
| clk_data); |
| |
| s10_clk_register_gate(s10_gate_clks, ARRAY_SIZE(s10_gate_clks), |
| clk_data); |
| |
| of_clk_add_hw_provider(np, of_clk_hw_onecell_get, &clk_data->clk_data); |
| return 0; |
| } |
| |
| static int s10_clkmgr_probe(struct platform_device *pdev) |
| { |
| return s10_clkmgr_init(pdev); |
| } |
| |
| static const struct of_device_id stratix10_clkmgr_match_table[] = { |
| { .compatible = "intel,stratix10-clkmgr", |
| .data = s10_clkmgr_init }, |
| { } |
| }; |
| |
| static struct platform_driver stratix10_clkmgr_driver = { |
| .probe = s10_clkmgr_probe, |
| .driver = { |
| .name = "stratix10-clkmgr", |
| .suppress_bind_attrs = true, |
| .of_match_table = stratix10_clkmgr_match_table, |
| }, |
| }; |
| |
| static int __init s10_clk_init(void) |
| { |
| return platform_driver_register(&stratix10_clkmgr_driver); |
| } |
| core_initcall(s10_clk_init); |