diff options
Diffstat (limited to 'drivers/clk/qcom/clock-qcs615.c')
| -rw-r--r-- | drivers/clk/qcom/clock-qcs615.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/drivers/clk/qcom/clock-qcs615.c b/drivers/clk/qcom/clock-qcs615.c new file mode 100644 index 00000000000..4700baba8c9 --- /dev/null +++ b/drivers/clk/qcom/clock-qcs615.c @@ -0,0 +1,163 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Clock drivers for Qualcomm qcs615 + * + * (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,qcs615-gcc.h> +#include "clock-qcom.h" + +#define USB30_PRIM_MOCK_UTMI_CLK_CMD_RCGR 0xf034 +#define USB30_PRIM_MASTER_CLK_CMD_RCGR 0xf01c +#define USB3_PRIM_PHY_AUX_CMD_RCGR 0xf060 + +#define GCC_QUPV3_WRAP0_S0_CLK_ENA_BIT BIT(10) +#define GCC_QUPV3_WRAP0_S1_CLK_ENA_BIT BIT(11) +#define GCC_QUPV3_WRAP0_S2_CLK_ENA_BIT BIT(12) +#define GCC_QUPV3_WRAP0_S3_CLK_ENA_BIT BIT(13) +#define GCC_QUPV3_WRAP0_S4_CLK_ENA_BIT BIT(14) +#define GCC_QUPV3_WRAP0_S5_CLK_ENA_BIT BIT(15) + +#define GCC_QUPV3_WRAP1_S0_CLK_ENA_BIT BIT(22) +#define GCC_QUPV3_WRAP1_S1_CLK_ENA_BIT BIT(23) +#define GCC_QUPV3_WRAP1_S2_CLK_ENA_BIT BIT(24) +#define GCC_QUPV3_WRAP1_S3_CLK_ENA_BIT BIT(25) +#define GCC_QUPV3_WRAP1_S4_CLK_ENA_BIT BIT(26) +#define GCC_QUPV3_WRAP1_S5_CLK_ENA_BIT BIT(27) + +static ulong qcs615_set_rate(struct clk *clk, ulong rate) +{ + struct msm_clk_priv *priv = dev_get_priv(clk->dev); + + 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_MOCK_UTMI_CLK: + WARN(rate != 19200000, "Unexpected rate for USB30_PRIM_MOCK_UTMI_CLK: %lu\n", rate); + clk_rcg_set_rate(priv->base, USB30_PRIM_MOCK_UTMI_CLK_CMD_RCGR, 0, CFG_CLK_SRC_CXO); + return rate; + case GCC_USB30_PRIM_MASTER_CLK: + WARN(rate != 200000000, "Unexpected rate for USB30_PRIM_MASTER_CLK: %lu\n", rate); + clk_rcg_set_rate_mnd(priv->base, USB30_PRIM_MASTER_CLK_CMD_RCGR, + 5, 0, 0, CFG_CLK_SRC_GPLL0, 8); + clk_rcg_set_rate(priv->base, USB3_PRIM_PHY_AUX_CMD_RCGR, 0, 0); + return rate; + default: + return 0; + } +} + +static const struct gate_clk qcs615_clks[] = { + GATE_CLK(GCC_CFG_NOC_USB3_PRIM_AXI_CLK, 0xf078, BIT(0)), + GATE_CLK(GCC_USB30_PRIM_MASTER_CLK, 0xf010, BIT(0)), + GATE_CLK(GCC_AGGRE_USB3_PRIM_AXI_CLK, 0xf07c, BIT(0)), + GATE_CLK(GCC_USB30_PRIM_SLEEP_CLK, 0xf014, BIT(0)), + GATE_CLK(GCC_USB30_PRIM_MOCK_UTMI_CLK, 0xf018, BIT(0)), + GATE_CLK(GCC_USB3_PRIM_PHY_AUX_CLK, 0xf050, BIT(0)), + GATE_CLK(GCC_USB3_PRIM_PHY_COM_AUX_CLK, 0xf054, BIT(0)), + GATE_CLK(GCC_USB3_PRIM_PHY_PIPE_CLK, 0xf058, BIT(0)), + GATE_CLK(GCC_QUPV3_WRAP0_S0_CLK, 0x5200c, GCC_QUPV3_WRAP0_S0_CLK_ENA_BIT), + GATE_CLK(GCC_QUPV3_WRAP0_S1_CLK, 0x5200c, GCC_QUPV3_WRAP0_S1_CLK_ENA_BIT), + GATE_CLK(GCC_QUPV3_WRAP0_S2_CLK, 0x5200c, GCC_QUPV3_WRAP0_S2_CLK_ENA_BIT), + GATE_CLK(GCC_QUPV3_WRAP0_S3_CLK, 0x5200c, GCC_QUPV3_WRAP0_S3_CLK_ENA_BIT), + GATE_CLK(GCC_QUPV3_WRAP0_S4_CLK, 0x5200c, GCC_QUPV3_WRAP0_S4_CLK_ENA_BIT), + GATE_CLK(GCC_QUPV3_WRAP0_S5_CLK, 0x5200c, GCC_QUPV3_WRAP0_S5_CLK_ENA_BIT), + GATE_CLK(GCC_QUPV3_WRAP1_S0_CLK, 0x5200c, GCC_QUPV3_WRAP1_S0_CLK_ENA_BIT), + GATE_CLK(GCC_QUPV3_WRAP1_S1_CLK, 0x5200c, GCC_QUPV3_WRAP1_S1_CLK_ENA_BIT), + GATE_CLK(GCC_QUPV3_WRAP1_S2_CLK, 0x5200c, GCC_QUPV3_WRAP1_S2_CLK_ENA_BIT), + GATE_CLK(GCC_QUPV3_WRAP1_S3_CLK, 0x5200c, GCC_QUPV3_WRAP1_S3_CLK_ENA_BIT), + GATE_CLK(GCC_QUPV3_WRAP1_S4_CLK, 0x5200c, GCC_QUPV3_WRAP1_S4_CLK_ENA_BIT), + GATE_CLK(GCC_QUPV3_WRAP1_S5_CLK, 0x5200c, GCC_QUPV3_WRAP1_S5_CLK_ENA_BIT), + GATE_CLK(GCC_DISP_HF_AXI_CLK, 0xb038, BIT(0)), + GATE_CLK(GCC_DISP_AHB_CLK, 0xb032, BIT(0)) +}; + +static int qcs615_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, qcs615_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; + } + + qcom_gate_clk_en(priv, clk->id); + + return 0; +} + +static const struct qcom_reset_map qcs615_gcc_resets[] = { + [GCC_EMAC_BCR] = { 0x6000 }, + [GCC_QUSB2PHY_PRIM_BCR] = { 0xd000 }, + [GCC_QUSB2PHY_SEC_BCR] = { 0xd004 }, + [GCC_USB30_PRIM_BCR] = { 0xf000 }, + [GCC_USB2_PHY_SEC_BCR] = { 0x50018 }, + [GCC_USB3_DP_PHY_SEC_BCR] = { 0x50020 }, + [GCC_USB3PHY_PHY_SEC_BCR] = { 0x5001c }, + [GCC_PCIE_0_BCR] = { 0x6b000 }, + [GCC_PCIE_0_PHY_BCR] = { 0x6c01c }, + [GCC_PCIE_PHY_BCR] = { 0x6f000 }, + [GCC_PCIE_PHY_COM_BCR] = { 0x6f010 }, + [GCC_UFS_PHY_BCR] = { 0x77000 }, + [GCC_USB20_SEC_BCR] = { 0xa6000 }, + [GCC_USB3PHY_PHY_PRIM_SP0_BCR] = { 0x50008 }, + [GCC_USB3_PHY_PRIM_SP0_BCR] = { 0x50000 }, + [GCC_SDCC1_BCR] = { 0x12000 }, + [GCC_SDCC2_BCR] = { 0x14000 } +}; + +static const struct qcom_power_map qcs615_gdscs[] = { + [UFS_PHY_GDSC] = { 0x77004 }, + [USB30_PRIM_GDSC] = { 0xf004 }, +}; + +static struct msm_clk_data sa8775_gcc_data = { + .resets = qcs615_gcc_resets, + .num_resets = ARRAY_SIZE(qcs615_gcc_resets), + .clks = qcs615_clks, + .num_clks = ARRAY_SIZE(qcs615_clks), + + .power_domains = qcs615_gdscs, + .num_power_domains = ARRAY_SIZE(qcs615_gdscs), + + .enable = qcs615_enable, + .set_rate = qcs615_set_rate, +}; + +static const struct udevice_id gcc_qcs615_of_match[] = { + { + .compatible = "qcom,qcs615-gcc", + .data = (ulong)&sa8775_gcc_data, + }, + { } +}; + +U_BOOT_DRIVER(gcc_qcs615) = { + .name = "gcc_qcs615", + .id = UCLASS_NOP, + .of_match = gcc_qcs615_of_match, + .bind = qcom_cc_bind, + .flags = DM_FLAG_PRE_RELOC | DM_FLAG_DEFAULT_PD_CTRL_OFF, +}; |