diff options
Diffstat (limited to 'drivers/clk/mediatek/clk-mt7981-infracfg.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt7981-infracfg.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt7981-infracfg.c b/drivers/clk/mediatek/clk-mt7981-infracfg.c new file mode 100644 index 0000000000..18bf4e8be4 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt7981-infracfg.c @@ -0,0 +1,207 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2021 MediaTek Inc. + * Author: Sam Shih <sam.shih@mediatek.com> + * Author: Wenzhen Yu <wenzhen.yu@mediatek.com> + * Author: Jianhui Zhao <zhaojh329@gmail.com> + * Author: Daniel Golle <daniel@makrotopia.org> + */ + +#include <linux/clk-provider.h> +#include <linux/mod_devicetable.h> +#include <linux/platform_device.h> +#include "clk-mtk.h" +#include "clk-gate.h" +#include "clk-mux.h" + +#include <dt-bindings/clock/mediatek,mt7981-clk.h> +#include <linux/clk.h> + +static DEFINE_SPINLOCK(mt7981_clk_lock); + +static const struct mtk_fixed_factor infra_divs[] = { + FACTOR(CLK_INFRA_66M_MCK, "infra_66m_mck", "sysaxi_sel", 1, 2), +}; + +static const char *const infra_uart_parent[] __initconst = { "csw_f26m_sel", + "uart_sel" }; + +static const char *const infra_spi0_parents[] __initconst = { "i2c_sel", + "spi_sel" }; + +static const char *const infra_spi1_parents[] __initconst = { "i2c_sel", + "spim_mst_sel" }; + +static const char *const infra_pwm1_parents[] __initconst = { "pwm_sel" }; + +static const char *const infra_pwm_bsel_parents[] __initconst = { + "cb_rtc_32p7k", "csw_f26m_sel", "infra_66m_mck", "pwm_sel" +}; + +static const char *const infra_pcie_parents[] __initconst = { + "cb_rtc_32p7k", "csw_f26m_sel", "cb_cksq_40m", "pextp_tl_ck_sel" +}; + +static const struct mtk_mux infra_muxes[] = { + /* MODULE_CLK_SEL_0 */ + MUX_GATE_CLR_SET_UPD(CLK_INFRA_UART0_SEL, "infra_uart0_sel", + infra_uart_parent, 0x0018, 0x0010, 0x0014, 0, 1, + -1, -1, -1), + MUX_GATE_CLR_SET_UPD(CLK_INFRA_UART1_SEL, "infra_uart1_sel", + infra_uart_parent, 0x0018, 0x0010, 0x0014, 1, 1, + -1, -1, -1), + MUX_GATE_CLR_SET_UPD(CLK_INFRA_UART2_SEL, "infra_uart2_sel", + infra_uart_parent, 0x0018, 0x0010, 0x0014, 2, 1, + -1, -1, -1), + MUX_GATE_CLR_SET_UPD(CLK_INFRA_SPI0_SEL, "infra_spi0_sel", + infra_spi0_parents, 0x0018, 0x0010, 0x0014, 4, 1, + -1, -1, -1), + MUX_GATE_CLR_SET_UPD(CLK_INFRA_SPI1_SEL, "infra_spi1_sel", + infra_spi1_parents, 0x0018, 0x0010, 0x0014, 5, 1, + -1, -1, -1), + MUX_GATE_CLR_SET_UPD(CLK_INFRA_SPI2_SEL, "infra_spi2_sel", + infra_spi0_parents, 0x0018, 0x0010, 0x0014, 6, 1, + -1, -1, -1), + MUX_GATE_CLR_SET_UPD(CLK_INFRA_PWM1_SEL, "infra_pwm1_sel", + infra_pwm1_parents, 0x0018, 0x0010, 0x0014, 9, 1, + -1, -1, -1), + MUX_GATE_CLR_SET_UPD(CLK_INFRA_PWM2_SEL, "infra_pwm2_sel", + infra_pwm1_parents, 0x0018, 0x0010, 0x0014, 11, 1, + -1, -1, -1), + MUX_GATE_CLR_SET_UPD(CLK_INFRA_PWM3_SEL, "infra_pwm3_sel", + infra_pwm1_parents, 0x0018, 0x0010, 0x0014, 15, 1, + -1, -1, -1), + MUX_GATE_CLR_SET_UPD(CLK_INFRA_PWM_BSEL, "infra_pwm_bsel", + infra_pwm_bsel_parents, 0x0018, 0x0010, 0x0014, 13, + 2, -1, -1, -1), + /* MODULE_CLK_SEL_1 */ + MUX_GATE_CLR_SET_UPD(CLK_INFRA_PCIE_SEL, "infra_pcie_sel", + infra_pcie_parents, 0x0028, 0x0020, 0x0024, 0, 2, + -1, -1, -1), +}; + +static const struct mtk_gate_regs infra0_cg_regs = { + .set_ofs = 0x40, + .clr_ofs = 0x44, + .sta_ofs = 0x48, +}; + +static const struct mtk_gate_regs infra1_cg_regs = { + .set_ofs = 0x50, + .clr_ofs = 0x54, + .sta_ofs = 0x58, +}; + +static const struct mtk_gate_regs infra2_cg_regs = { + .set_ofs = 0x60, + .clr_ofs = 0x64, + .sta_ofs = 0x68, +}; + +#define GATE_INFRA0(_id, _name, _parent, _shift) \ + { \ + .id = _id, .name = _name, .parent_name = _parent, \ + .regs = &infra0_cg_regs, .shift = _shift, \ + .ops = &mtk_clk_gate_ops_setclr, \ + } + +#define GATE_INFRA1(_id, _name, _parent, _shift) \ + { \ + .id = _id, .name = _name, .parent_name = _parent, \ + .regs = &infra1_cg_regs, .shift = _shift, \ + .ops = &mtk_clk_gate_ops_setclr, \ + } + +#define GATE_INFRA2(_id, _name, _parent, _shift) \ + { \ + .id = _id, .name = _name, .parent_name = _parent, \ + .regs = &infra2_cg_regs, .shift = _shift, \ + .ops = &mtk_clk_gate_ops_setclr, \ + } + +static const struct mtk_gate infra_clks[] = { + /* INFRA0 */ + GATE_INFRA0(CLK_INFRA_GPT_STA, "infra_gpt_sta", "infra_66m_mck", 0), + GATE_INFRA0(CLK_INFRA_PWM_HCK, "infra_pwm_hck", "infra_66m_mck", 1), + GATE_INFRA0(CLK_INFRA_PWM_STA, "infra_pwm_sta", "infra_pwm_bsel", 2), + GATE_INFRA0(CLK_INFRA_PWM1_CK, "infra_pwm1", "infra_pwm1_sel", 3), + GATE_INFRA0(CLK_INFRA_PWM2_CK, "infra_pwm2", "infra_pwm2_sel", 4), + GATE_INFRA0(CLK_INFRA_CQ_DMA_CK, "infra_cq_dma", "sysaxi", 6), + + GATE_INFRA0(CLK_INFRA_AUD_BUS_CK, "infra_aud_bus", "sysaxi", 8), + GATE_INFRA0(CLK_INFRA_AUD_26M_CK, "infra_aud_26m", "csw_f26m_sel", 9), + GATE_INFRA0(CLK_INFRA_AUD_L_CK, "infra_aud_l", "aud_l", 10), + GATE_INFRA0(CLK_INFRA_AUD_AUD_CK, "infra_aud_aud", "a1sys", 11), + GATE_INFRA0(CLK_INFRA_AUD_EG2_CK, "infra_aud_eg2", "a_tuner", 13), + GATE_INFRA0(CLK_INFRA_DRAMC_26M_CK, "infra_dramc_26m", "csw_f26m_sel", + 14), + GATE_INFRA0(CLK_INFRA_DBG_CK, "infra_dbg", "infra_66m_mck", 15), + GATE_INFRA0(CLK_INFRA_AP_DMA_CK, "infra_ap_dma", "infra_66m_mck", 16), + GATE_INFRA0(CLK_INFRA_SEJ_CK, "infra_sej", "infra_66m_mck", 24), + GATE_INFRA0(CLK_INFRA_SEJ_13M_CK, "infra_sej_13m", "csw_f26m_sel", 25), + GATE_INFRA0(CLK_INFRA_PWM3_CK, "infra_pwm3", "infra_pwm3_sel", 27), + /* INFRA1 */ + GATE_INFRA1(CLK_INFRA_THERM_CK, "infra_therm", "csw_f26m_sel", 0), + GATE_INFRA1(CLK_INFRA_I2C0_CK, "infra_i2c0", "i2c_bck", 1), + GATE_INFRA1(CLK_INFRA_UART0_CK, "infra_uart0", "infra_uart0_sel", 2), + GATE_INFRA1(CLK_INFRA_UART1_CK, "infra_uart1", "infra_uart1_sel", 3), + GATE_INFRA1(CLK_INFRA_UART2_CK, "infra_uart2", "infra_uart2_sel", 4), + GATE_INFRA1(CLK_INFRA_SPI2_CK, "infra_spi2", "infra_spi2_sel", 6), + GATE_INFRA1(CLK_INFRA_SPI2_HCK_CK, "infra_spi2_hck", "infra_66m_mck", 7), + GATE_INFRA1(CLK_INFRA_NFI1_CK, "infra_nfi1", "nfi1x", 8), + GATE_INFRA1(CLK_INFRA_SPINFI1_CK, "infra_spinfi1", "spinfi_bck", 9), + GATE_INFRA1(CLK_INFRA_NFI_HCK_CK, "infra_nfi_hck", "infra_66m_mck", 10), + GATE_INFRA1(CLK_INFRA_SPI0_CK, "infra_spi0", "infra_spi0_sel", 11), + GATE_INFRA1(CLK_INFRA_SPI1_CK, "infra_spi1", "infra_spi1_sel", 12), + GATE_INFRA1(CLK_INFRA_SPI0_HCK_CK, "infra_spi0_hck", "infra_66m_mck", + 13), + GATE_INFRA1(CLK_INFRA_SPI1_HCK_CK, "infra_spi1_hck", "infra_66m_mck", + 14), + GATE_INFRA1(CLK_INFRA_FRTC_CK, "infra_frtc", "cb_rtc_32k", 15), + GATE_INFRA1(CLK_INFRA_MSDC_CK, "infra_msdc", "emmc_400m", 16), + GATE_INFRA1(CLK_INFRA_MSDC_HCK_CK, "infra_msdc_hck", "emmc_208m", 17), + GATE_INFRA1(CLK_INFRA_MSDC_133M_CK, "infra_msdc_133m", "sysaxi", 18), + GATE_INFRA1(CLK_INFRA_MSDC_66M_CK, "infra_msdc_66m", "sysaxi", 19), + GATE_INFRA1(CLK_INFRA_ADC_26M_CK, "infra_adc_26m", "infra_adc_frc", 20), + GATE_INFRA1(CLK_INFRA_ADC_FRC_CK, "infra_adc_frc", "csw_f26m", 21), + GATE_INFRA1(CLK_INFRA_FBIST2FPC_CK, "infra_fbist2fpc", "nfi1x", 23), + GATE_INFRA1(CLK_INFRA_I2C_MCK_CK, "infra_i2c_mck", "sysaxi", 25), + GATE_INFRA1(CLK_INFRA_I2C_PCK_CK, "infra_i2c_pck", "infra_66m_mck", 26), + /* INFRA2 */ + GATE_INFRA2(CLK_INFRA_IUSB_133_CK, "infra_iusb_133", "sysaxi", 0), + GATE_INFRA2(CLK_INFRA_IUSB_66M_CK, "infra_iusb_66m", "sysaxi", 1), + GATE_INFRA2(CLK_INFRA_IUSB_SYS_CK, "infra_iusb_sys", "u2u3_sys", 2), + GATE_INFRA2(CLK_INFRA_IUSB_CK, "infra_iusb", "u2u3_ref", 3), + GATE_INFRA2(CLK_INFRA_IPCIE_CK, "infra_ipcie", "pextp_tl", 12), + GATE_INFRA2(CLK_INFRA_IPCIE_PIPE_CK, "infra_ipcie_pipe", "cb_cksq_40m", + 13), + GATE_INFRA2(CLK_INFRA_IPCIER_CK, "infra_ipcier", "csw_f26m", 14), + GATE_INFRA2(CLK_INFRA_IPCIEB_CK, "infra_ipcieb", "sysaxi", 15), +}; + +static const struct mtk_clk_desc infracfg_desc = { + .factor_clks = infra_divs, + .num_factor_clks = ARRAY_SIZE(infra_divs), + .mux_clks = infra_muxes, + .num_mux_clks = ARRAY_SIZE(infra_muxes), + .clks = infra_clks, + .num_clks = ARRAY_SIZE(infra_clks), + .clk_lock = &mt7981_clk_lock, +}; + +static const struct of_device_id of_match_clk_mt7981_infracfg[] = { + { .compatible = "mediatek,mt7981-infracfg", .data = &infracfg_desc }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, of_match_clk_mt7981_infracfg); + +static struct platform_driver clk_mt7981_infracfg_drv = { + .probe = mtk_clk_simple_probe, + .remove_new = mtk_clk_simple_remove, + .driver = { + .name = "clk-mt7981-infracfg", + .of_match_table = of_match_clk_mt7981_infracfg, + }, +}; +module_platform_driver(clk_mt7981_infracfg_drv); +MODULE_LICENSE("GPL"); |