diff options
Diffstat (limited to 'drivers/clk/mediatek/clk-mt7986-infracfg.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt7986-infracfg.c | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt7986-infracfg.c b/drivers/clk/mediatek/clk-mt7986-infracfg.c new file mode 100644 index 000000000000..d90727a53283 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt7986-infracfg.c @@ -0,0 +1,224 @@ +// 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> + */ + +#include <linux/clk-provider.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_device.h> +#include <linux/platform_device.h> +#include "clk-mtk.h" +#include "clk-gate.h" +#include "clk-mux.h" + +#include <dt-bindings/clock/mt7986-clk.h> +#include <linux/clk.h> + +static DEFINE_SPINLOCK(mt7986_clk_lock); + +static const struct mtk_fixed_factor infra_divs[] = { + FACTOR(CLK_INFRA_SYSAXI_D2, "infra_sysaxi_d2", "sysaxi_sel", 1, 2), +}; + +static const char *const infra_uart_parent[] __initconst = { "csw_f26m_sel", + "uart_sel" }; + +static const char *const infra_spi_parents[] __initconst = { "i2c_sel", + "spi_sel" }; + +static const char *const infra_pwm_bsel_parents[] __initconst = { + "top_rtc_32p7k", "csw_f26m_sel", "infra_sysaxi_d2", "pwm_sel" +}; + +static const char *const infra_pcie_parents[] __initconst = { + "top_rtc_32p7k", "csw_f26m_sel", "top_xtal", "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_spi_parents, 0x0018, 0x0010, 0x0014, 4, 1, + -1, -1, -1), + MUX_GATE_CLR_SET_UPD(CLK_INFRA_SPI1_SEL, "infra_spi1_sel", + infra_spi_parents, 0x0018, 0x0010, 0x0014, 5, 1, + -1, -1, -1), + MUX_GATE_CLR_SET_UPD(CLK_INFRA_PWM1_SEL, "infra_pwm1_sel", + infra_pwm_bsel_parents, 0x0018, 0x0010, 0x0014, 9, + 2, -1, -1, -1), + MUX_GATE_CLR_SET_UPD(CLK_INFRA_PWM2_SEL, "infra_pwm2_sel", + infra_pwm_bsel_parents, 0x0018, 0x0010, 0x0014, 11, + 2, -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_sysaxi_d2", 0), + GATE_INFRA0(CLK_INFRA_PWM_HCK, "infra_pwm_hck", "infra_sysaxi_d2", 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_sel", 6), + GATE_INFRA0(CLK_INFRA_EIP97_CK, "infra_eip97", "eip_b_sel", 7), + GATE_INFRA0(CLK_INFRA_AUD_BUS_CK, "infra_aud_bus", "sysaxi_sel", 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_sel", 10), + GATE_INFRA0(CLK_INFRA_AUD_AUD_CK, "infra_aud_aud", "a1sys_sel", 11), + GATE_INFRA0(CLK_INFRA_AUD_EG2_CK, "infra_aud_eg2", "a_tuner_sel", 13), + GATE_INFRA0(CLK_INFRA_DRAMC_26M_CK, "infra_dramc_26m", "csw_f26m_sel", + 14), + GATE_INFRA0(CLK_INFRA_DBG_CK, "infra_dbg", "infra_sysaxi_d2", 15), + GATE_INFRA0(CLK_INFRA_AP_DMA_CK, "infra_ap_dma", "infra_sysaxi_d2", 16), + GATE_INFRA0(CLK_INFRA_SEJ_CK, "infra_sej", "infra_sysaxi_d2", 24), + GATE_INFRA0(CLK_INFRA_SEJ_13M_CK, "infra_sej_13m", "csw_f26m_sel", 25), + GATE_INFRA0(CLK_INFRA_TRNG_CK, "infra_trng", "sysaxi_sel", 26), + /* INFRA1 */ + GATE_INFRA1(CLK_INFRA_THERM_CK, "infra_therm", "csw_f26m_sel", 0), + GATE_INFRA1(CLK_INFRA_I2C0_CK, "infra_i2c0", "i2c_sel", 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_NFI1_CK, "infra_nfi1", "nfi1x_sel", 8), + GATE_INFRA1(CLK_INFRA_SPINFI1_CK, "infra_spinfi1", "spinfi_sel", 9), + GATE_INFRA1(CLK_INFRA_NFI_HCK_CK, "infra_nfi_hck", "infra_sysaxi_d2", + 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_sysaxi_d2", + 13), + GATE_INFRA1(CLK_INFRA_SPI1_HCK_CK, "infra_spi1_hck", "infra_sysaxi_d2", + 14), + GATE_INFRA1(CLK_INFRA_FRTC_CK, "infra_frtc", "top_rtc_32k", 15), + GATE_INFRA1(CLK_INFRA_MSDC_CK, "infra_msdc", "emmc_416m_sel", 16), + GATE_INFRA1(CLK_INFRA_MSDC_HCK_CK, "infra_msdc_hck", "emmc_250m_sel", + 17), + GATE_INFRA1(CLK_INFRA_MSDC_133M_CK, "infra_msdc_133m", "sysaxi_sel", + 18), + GATE_INFRA1(CLK_INFRA_MSDC_66M_CK, "infra_msdc_66m", "infra_sysaxi_d2", + 19), + GATE_INFRA1(CLK_INFRA_ADC_26M_CK, "infra_adc_26m", "csw_f26m_sel", 20), + GATE_INFRA1(CLK_INFRA_ADC_FRC_CK, "infra_adc_frc", "csw_f26m_sel", 21), + GATE_INFRA1(CLK_INFRA_FBIST2FPC_CK, "infra_fbist2fpc", "nfi1x_sel", 23), + /* INFRA2 */ + GATE_INFRA2(CLK_INFRA_IUSB_133_CK, "infra_iusb_133", "sysaxi_sel", 0), + GATE_INFRA2(CLK_INFRA_IUSB_66M_CK, "infra_iusb_66m", "infra_sysaxi_d2", + 1), + GATE_INFRA2(CLK_INFRA_IUSB_SYS_CK, "infra_iusb_sys", "u2u3_sys_sel", 2), + GATE_INFRA2(CLK_INFRA_IUSB_CK, "infra_iusb", "u2u3_sel", 3), + GATE_INFRA2(CLK_INFRA_IPCIE_CK, "infra_ipcie", "pextp_tl_ck_sel", 12), + GATE_INFRA2(CLK_INFRA_IPCIE_PIPE_CK, "infra_ipcie_pipe", "top_xtal", + 13), + GATE_INFRA2(CLK_INFRA_IPCIER_CK, "infra_ipcier", "csw_f26m_sel", 14), + GATE_INFRA2(CLK_INFRA_IPCIEB_CK, "infra_ipcieb", "sysaxi_sel", 15), +}; + +static int clk_mt7986_infracfg_probe(struct platform_device *pdev) +{ + struct clk_hw_onecell_data *clk_data; + struct device_node *node = pdev->dev.of_node; + int r; + void __iomem *base; + int nr = ARRAY_SIZE(infra_divs) + ARRAY_SIZE(infra_muxes) + + ARRAY_SIZE(infra_clks); + + base = of_iomap(node, 0); + if (!base) { + pr_err("%s(): ioremap failed\n", __func__); + return -ENOMEM; + } + + clk_data = mtk_alloc_clk_data(nr); + + if (!clk_data) + return -ENOMEM; + + mtk_clk_register_factors(infra_divs, ARRAY_SIZE(infra_divs), clk_data); + mtk_clk_register_muxes(infra_muxes, ARRAY_SIZE(infra_muxes), node, + &mt7986_clk_lock, clk_data); + mtk_clk_register_gates(node, infra_clks, ARRAY_SIZE(infra_clks), + clk_data); + + r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data); + if (r) { + pr_err("%s(): could not register clock provider: %d\n", + __func__, r); + goto free_infracfg_data; + } + return r; + +free_infracfg_data: + mtk_free_clk_data(clk_data); + return r; + +} + +static const struct of_device_id of_match_clk_mt7986_infracfg[] = { + { .compatible = "mediatek,mt7986-infracfg", }, + {} +}; + +static struct platform_driver clk_mt7986_infracfg_drv = { + .probe = clk_mt7986_infracfg_probe, + .driver = { + .name = "clk-mt7986-infracfg", + .of_match_table = of_match_clk_mt7986_infracfg, + }, +}; +builtin_platform_driver(clk_mt7986_infracfg_drv); |