| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Clock drivers for Qualcomm sc7280 |
| * |
| * (C) Copyright 2024 Linaro Ltd. |
| */ |
| |
| #include <linux/types.h> |
| #include <clk-uclass.h> |
| #include <dm.h> |
| #include <linux/delay.h> |
| #include <asm/io.h> |
| #include <linux/bug.h> |
| #include <linux/bitops.h> |
| #include <dt-bindings/clock/qcom,gcc-sc7280.h> |
| |
| #include "clock-qcom.h" |
| |
| #define USB30_PRIM_MASTER_CLK_CMD_RCGR 0xf020 |
| #define USB30_PRIM_MOCK_UTMI_CLK_CMD_RCGR 0xf038 |
| #define USB30_SEC_MASTER_CLK_CMD_RCGR 0x9e020 |
| #define USB30_SEC_MOCK_UTMI_CLK_CMD_RCGR 0x9e038 |
| #define PCIE_1_AUX_CLK_CMD_RCGR 0x8d058 |
| #define PCIE1_PHY_RCHNG_CMD_RCGR 0x8d03c |
| #define PCIE_1_PIPE_CLK_PHY_MUX 0x8d054 |
| |
| static const struct freq_tbl ftbl_gcc_usb30_prim_master_clk_src[] = { |
| F(66666667, CFG_CLK_SRC_GPLL0_EVEN, 4.5, 0, 0), |
| F(133333333, CFG_CLK_SRC_GPLL0, 4.5, 0, 0), |
| F(200000000, CFG_CLK_SRC_GPLL0_ODD, 1, 0, 0), |
| F(240000000, CFG_CLK_SRC_GPLL0, 2.5, 0, 0), |
| { } |
| }; |
| |
| static const struct freq_tbl ftbl_gcc_usb30_sec_master_clk_src[] = { |
| F(60000000, CFG_CLK_SRC_GPLL0_EVEN, 5, 0, 0), |
| F(120000000, CFG_CLK_SRC_GPLL0_EVEN, 2.5, 0, 0), |
| { } |
| }; |
| |
| static ulong sc7280_set_rate(struct clk *clk, ulong rate) |
| { |
| struct msm_clk_priv *priv = dev_get_priv(clk->dev); |
| const struct freq_tbl *freq; |
| |
| if (clk->id < priv->data->num_clks) |
| debug("%s: %s, requested rate=%ld\n", __func__, priv->data->clks[clk->id].name, rate); |
| |
| switch (clk->id) { |
| case GCC_USB30_PRIM_MASTER_CLK: |
| freq = qcom_find_freq(ftbl_gcc_usb30_prim_master_clk_src, rate); |
| clk_rcg_set_rate_mnd(priv->base, USB30_PRIM_MASTER_CLK_CMD_RCGR, |
| freq->pre_div, freq->m, freq->n, freq->src, 8); |
| return freq->freq; |
| case GCC_USB30_PRIM_MOCK_UTMI_CLK: |
| clk_rcg_set_rate(priv->base, USB30_PRIM_MOCK_UTMI_CLK_CMD_RCGR, 1, 0); |
| return 19200000; |
| case GCC_USB3_PRIM_PHY_AUX_CLK_SRC: |
| clk_rcg_set_rate(priv->base, USB30_PRIM_MOCK_UTMI_CLK_CMD_RCGR, 1, 0); |
| return 19200000; |
| case GCC_USB30_SEC_MASTER_CLK: |
| freq = qcom_find_freq(ftbl_gcc_usb30_sec_master_clk_src, rate); |
| clk_rcg_set_rate_mnd(priv->base, USB30_SEC_MASTER_CLK_CMD_RCGR, |
| freq->pre_div, freq->m, freq->n, freq->src, 8); |
| return freq->freq; |
| case GCC_USB30_SEC_MOCK_UTMI_CLK: |
| clk_rcg_set_rate(priv->base, USB30_SEC_MOCK_UTMI_CLK_CMD_RCGR, 1, 0); |
| return 19200000; |
| case GCC_USB3_SEC_PHY_AUX_CLK_SRC: |
| clk_rcg_set_rate(priv->base, USB30_PRIM_MOCK_UTMI_CLK_CMD_RCGR, 1, 0); |
| return 19200000; |
| case GCC_PCIE1_PHY_RCHNG_CLK: |
| clk_rcg_set_rate(priv->base, PCIE1_PHY_RCHNG_CMD_RCGR, 5, CFG_CLK_SRC_GPLL0_EVEN); |
| return 100000000; |
| default: |
| return rate; |
| } |
| } |
| |
| static const struct gate_clk sc7280_clks[] = { |
| GATE_CLK(GCC_CFG_NOC_USB3_PRIM_AXI_CLK, 0xf07c, 1), |
| GATE_CLK(GCC_USB30_PRIM_MASTER_CLK, 0xf010, 1), |
| GATE_CLK(GCC_AGGRE_USB3_PRIM_AXI_CLK, 0xf080, 1), |
| GATE_CLK(GCC_USB30_PRIM_SLEEP_CLK, 0xf018, 1), |
| GATE_CLK(GCC_USB30_PRIM_MOCK_UTMI_CLK, 0xf01c, 1), |
| GATE_CLK(GCC_USB3_PRIM_PHY_AUX_CLK, 0xf054, 1), |
| GATE_CLK(GCC_USB3_PRIM_PHY_COM_AUX_CLK, 0xf058, 1), |
| GATE_CLK(GCC_CFG_NOC_USB3_SEC_AXI_CLK, 0x9e07c, 1), |
| GATE_CLK(GCC_USB30_SEC_MASTER_CLK, 0x9e010, 1), |
| GATE_CLK(GCC_AGGRE_USB3_SEC_AXI_CLK, 0x9e080, 1), |
| GATE_CLK(GCC_USB30_SEC_SLEEP_CLK, 0x9e018, 1), |
| GATE_CLK(GCC_USB30_SEC_MOCK_UTMI_CLK, 0x9e01c, 1), |
| GATE_CLK(GCC_USB3_SEC_PHY_AUX_CLK, 0x9e054, 1), |
| GATE_CLK(GCC_USB3_SEC_PHY_COM_AUX_CLK, 0x9e058, 1), |
| GATE_CLK(GCC_PCIE_CLKREF_EN, 0x8c004, 1), |
| GATE_CLK(GCC_PCIE_1_PIPE_CLK, 0x52000, BIT(30)), |
| GATE_CLK(GCC_PCIE_1_AUX_CLK, 0x52000, BIT(29)), |
| GATE_CLK(GCC_PCIE_1_CFG_AHB_CLK, 0x52000, BIT(28)), |
| GATE_CLK(GCC_PCIE_1_MSTR_AXI_CLK, 0x52000, BIT(27)), |
| GATE_CLK(GCC_PCIE_1_SLV_AXI_CLK, 0x52000, BIT(26)), |
| GATE_CLK(GCC_PCIE_1_SLV_Q2A_AXI_CLK, 0x52000, BIT(25)), |
| GATE_CLK(GCC_PCIE1_PHY_RCHNG_CLK, 0x52000, BIT(23)), |
| GATE_CLK(GCC_DDRSS_PCIE_SF_CLK, 0x52000, BIT(19)), |
| GATE_CLK(GCC_AGGRE_NOC_PCIE_TBU_CLK, 0x52000, BIT(18)), |
| GATE_CLK(GCC_AGGRE_NOC_PCIE_1_AXI_CLK, 0x52000, BIT(11)), |
| GATE_CLK(GCC_AGGRE_NOC_PCIE_CENTER_SF_AXI_CLK, 0x52008, BIT(28)), |
| GATE_CLK(GCC_QUPV3_WRAP0_S0_CLK, 0x52008, BIT(10)), |
| GATE_CLK(GCC_QUPV3_WRAP0_S1_CLK, 0x52008, BIT(11)), |
| GATE_CLK(GCC_QUPV3_WRAP0_S3_CLK, 0x52008, BIT(13)), |
| }; |
| |
| static int sc7280_enable(struct clk *clk) |
| { |
| struct msm_clk_priv *priv = dev_get_priv(clk->dev); |
| |
| if (priv->data->num_clks <= clk->id) { |
| debug("%s: unknown clk id %lu\n", __func__, clk->id); |
| return 0; |
| } |
| |
| debug("%s: clk %ld: %s\n", __func__, clk->id, sc7280_clks[clk->id].name); |
| |
| switch (clk->id) { |
| case GCC_AGGRE_USB3_PRIM_AXI_CLK: |
| qcom_gate_clk_en(priv, GCC_USB30_PRIM_MASTER_CLK); |
| fallthrough; |
| case GCC_USB30_PRIM_MASTER_CLK: |
| qcom_gate_clk_en(priv, GCC_USB3_PRIM_PHY_AUX_CLK); |
| qcom_gate_clk_en(priv, GCC_USB3_PRIM_PHY_COM_AUX_CLK); |
| break; |
| case GCC_AGGRE_USB3_SEC_AXI_CLK: |
| qcom_gate_clk_en(priv, GCC_USB30_SEC_MASTER_CLK); |
| fallthrough; |
| case GCC_USB30_SEC_MASTER_CLK: |
| qcom_gate_clk_en(priv, GCC_USB3_SEC_PHY_AUX_CLK); |
| qcom_gate_clk_en(priv, GCC_USB3_SEC_PHY_COM_AUX_CLK); |
| break; |
| case GCC_PCIE_1_PIPE_CLK: |
| clk_phy_mux_enable(priv->base, PCIE_1_PIPE_CLK_PHY_MUX, true); |
| break; |
| case GCC_PCIE_1_AUX_CLK: |
| clk_rcg_set_rate_mnd(priv->base, PCIE_1_AUX_CLK_CMD_RCGR, 1, 0, 0, |
| CFG_CLK_SRC_CXO, 16); |
| break; |
| case GCC_QUPV3_WRAP0_S0_CLK: |
| clk_rcg_set_rate_mnd(priv->base, 0x17010, 1, 0, 0, CFG_CLK_SRC_CXO, 16); |
| break; |
| case GCC_QUPV3_WRAP0_S1_CLK: |
| clk_rcg_set_rate_mnd(priv->base, 0x17140, 1, 0, 0, CFG_CLK_SRC_CXO, 16); |
| break; |
| case GCC_QUPV3_WRAP0_S3_CLK: |
| clk_rcg_set_rate_mnd(priv->base, 0x173a0, 1, 0, 0, CFG_CLK_SRC_CXO, 16); |
| break; |
| } |
| |
| return qcom_gate_clk_en(priv, clk->id); |
| } |
| |
| static const struct qcom_reset_map sc7280_gcc_resets[] = { |
| [GCC_PCIE_0_BCR] = { 0x6b000 }, |
| [GCC_PCIE_0_PHY_BCR] = { 0x6c01c }, |
| [GCC_PCIE_1_BCR] = { 0x8d000 }, |
| [GCC_PCIE_1_PHY_BCR] = { 0x8e01c }, |
| [GCC_QUSB2PHY_PRIM_BCR] = { 0x12000 }, |
| [GCC_QUSB2PHY_SEC_BCR] = { 0x12004 }, |
| [GCC_SDCC1_BCR] = { 0x75000 }, |
| [GCC_SDCC2_BCR] = { 0x14000 }, |
| [GCC_SDCC4_BCR] = { 0x16000 }, |
| [GCC_UFS_PHY_BCR] = { 0x77000 }, |
| [GCC_USB30_PRIM_BCR] = { 0xf000 }, |
| [GCC_USB30_SEC_BCR] = { 0x9e000 }, |
| [GCC_USB3_DP_PHY_PRIM_BCR] = { 0x50008 }, |
| [GCC_USB3_PHY_PRIM_BCR] = { 0x50000 }, |
| [GCC_USB3PHY_PHY_PRIM_BCR] = { 0x50004 }, |
| [GCC_USB_PHY_CFG_AHB2PHY_BCR] = { 0x6a000 }, |
| }; |
| |
| static const struct qcom_power_map sc7280_gdscs[] = { |
| [GCC_UFS_PHY_GDSC] = { 0x77004 }, |
| [GCC_USB30_PRIM_GDSC] = { 0xf004 }, |
| [GCC_USB30_SEC_GDSC] = { 0x9e004 }, |
| [GCC_PCIE_1_GDSC] = { 0x8d004 }, |
| }; |
| |
| static const phys_addr_t sc7280_rcg_addrs[] = { |
| 0x10f020, // USB30_PRIM_MASTER_CLK_CMD_RCGR |
| 0x10f038, // USB30_PRIM_MOCK_UTMI_CLK_CMD_RCGR |
| 0x18d058, // PCIE_1_AUX_CLK_CMD_RCGR |
| }; |
| |
| static const char *const sc7280_rcg_names[] = { |
| "USB30_PRIM_MASTER_CLK_SRC", |
| "USB30_PRIM_MOCK_UTMI_CLK_SRC", |
| "GCC_PCIE_1_AUX_CLK_SRC", |
| }; |
| |
| static struct msm_clk_data qcs404_gcc_data = { |
| .resets = sc7280_gcc_resets, |
| .num_resets = ARRAY_SIZE(sc7280_gcc_resets), |
| .clks = sc7280_clks, |
| .num_clks = ARRAY_SIZE(sc7280_clks), |
| |
| .power_domains = sc7280_gdscs, |
| .num_power_domains = ARRAY_SIZE(sc7280_gdscs), |
| |
| .enable = sc7280_enable, |
| .set_rate = sc7280_set_rate, |
| |
| .dbg_rcg_addrs = sc7280_rcg_addrs, |
| .num_rcgs = ARRAY_SIZE(sc7280_rcg_addrs), |
| .dbg_rcg_names = sc7280_rcg_names, |
| }; |
| |
| static const struct udevice_id gcc_sc7280_of_match[] = { |
| { |
| .compatible = "qcom,gcc-sc7280", |
| .data = (ulong)&qcs404_gcc_data, |
| }, |
| { } |
| }; |
| |
| U_BOOT_DRIVER(gcc_sc7280) = { |
| .name = "gcc_sc7280", |
| .id = UCLASS_NOP, |
| .of_match = gcc_sc7280_of_match, |
| .bind = qcom_cc_bind, |
| .flags = DM_FLAG_PRE_RELOC | DM_FLAG_DEFAULT_PD_CTRL_OFF, |
| }; |