diff options
Diffstat (limited to 'drivers/clk/sunxi-ng/ccu-sun50i-a100-r.c')
| -rw-r--r-- | drivers/clk/sunxi-ng/ccu-sun50i-a100-r.c | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-a100-r.c b/drivers/clk/sunxi-ng/ccu-sun50i-a100-r.c new file mode 100644 index 000000000000..a56142b90993 --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu-sun50i-a100-r.c @@ -0,0 +1,214 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2020 Yangtao Li <frank@allwinnertech.com> + */ + +#include <linux/clk-provider.h> +#include <linux/module.h> +#include <linux/of_address.h> +#include <linux/platform_device.h> + +#include "ccu_common.h" +#include "ccu_reset.h" + +#include "ccu_div.h" +#include "ccu_gate.h" +#include "ccu_mp.h" +#include "ccu_nm.h" + +#include "ccu-sun50i-a100-r.h" + +static const char * const cpus_r_apb2_parents[] = { "dcxo24M", "osc32k", + "iosc", "pll-periph0" }; +static const struct ccu_mux_var_prediv cpus_r_apb2_predivs[] = { + { .index = 3, .shift = 0, .width = 5 }, +}; + +static struct ccu_div r_cpus_clk = { + .div = _SUNXI_CCU_DIV_FLAGS(8, 2, CLK_DIVIDER_POWER_OF_TWO), + + .mux = { + .shift = 24, + .width = 2, + + .var_predivs = cpus_r_apb2_predivs, + .n_var_predivs = ARRAY_SIZE(cpus_r_apb2_predivs), + }, + + .common = { + .reg = 0x000, + .features = CCU_FEATURE_VARIABLE_PREDIV, + .hw.init = CLK_HW_INIT_PARENTS("cpus", + cpus_r_apb2_parents, + &ccu_div_ops, + 0), + }, +}; + +static CLK_FIXED_FACTOR_HW(r_ahb_clk, "r-ahb", &r_cpus_clk.common.hw, 1, 1, 0); + +static struct ccu_div r_apb1_clk = { + .div = _SUNXI_CCU_DIV(0, 2), + + .common = { + .reg = 0x00c, + .hw.init = CLK_HW_INIT("r-apb1", + "r-ahb", + &ccu_div_ops, + 0), + }, +}; + +static struct ccu_div r_apb2_clk = { + .div = _SUNXI_CCU_DIV_FLAGS(8, 2, CLK_DIVIDER_POWER_OF_TWO), + + .mux = { + .shift = 24, + .width = 2, + + .var_predivs = cpus_r_apb2_predivs, + .n_var_predivs = ARRAY_SIZE(cpus_r_apb2_predivs), + }, + + .common = { + .reg = 0x010, + .features = CCU_FEATURE_VARIABLE_PREDIV, + .hw.init = CLK_HW_INIT_PARENTS("r-apb2", + cpus_r_apb2_parents, + &ccu_div_ops, + 0), + }, +}; + +static const struct clk_parent_data clk_parent_r_apb1[] = { + { .hw = &r_apb1_clk.common.hw }, +}; + +static const struct clk_parent_data clk_parent_r_apb2[] = { + { .hw = &r_apb2_clk.common.hw }, +}; + +static SUNXI_CCU_GATE_DATA(r_apb1_timer_clk, "r-apb1-timer", clk_parent_r_apb1, + 0x11c, BIT(0), 0); + +static SUNXI_CCU_GATE_DATA(r_apb1_twd_clk, "r-apb1-twd", clk_parent_r_apb1, + 0x12c, BIT(0), 0); + +static const char * const r_apb1_pwm_clk_parents[] = { "dcxo24M", "osc32k", + "iosc" }; +static SUNXI_CCU_MUX(r_apb1_pwm_clk, "r-apb1-pwm", r_apb1_pwm_clk_parents, + 0x130, 24, 2, 0); + +static SUNXI_CCU_GATE_DATA(r_apb1_bus_pwm_clk, "r-apb1-bus-pwm", + clk_parent_r_apb1, 0x13c, BIT(0), 0); + +static SUNXI_CCU_GATE_DATA(r_apb1_ppu_clk, "r-apb1-ppu", clk_parent_r_apb1, + 0x17c, BIT(0), 0); + +static SUNXI_CCU_GATE_DATA(r_apb2_uart_clk, "r-apb2-uart", clk_parent_r_apb2, + 0x18c, BIT(0), 0); + +static SUNXI_CCU_GATE_DATA(r_apb2_i2c0_clk, "r-apb2-i2c0", clk_parent_r_apb2, + 0x19c, BIT(0), 0); + +static SUNXI_CCU_GATE_DATA(r_apb2_i2c1_clk, "r-apb2-i2c1", clk_parent_r_apb2, + 0x19c, BIT(1), 0); + +static const char * const r_apb1_ir_rx_parents[] = { "osc32k", "dcxo24M" }; +static SUNXI_CCU_MP_WITH_MUX_GATE(r_apb1_ir_rx_clk, "r-apb1-ir-rx", + r_apb1_ir_rx_parents, 0x1c0, + 0, 5, /* M */ + 8, 2, /* P */ + 24, 1, /* mux */ + BIT(31), /* gate */ + 0); + +static SUNXI_CCU_GATE_DATA(r_apb1_bus_ir_rx_clk, "r-apb1-bus-ir-rx", + clk_parent_r_apb1, 0x1cc, BIT(0), 0); + +static SUNXI_CCU_GATE(r_ahb_bus_rtc_clk, "r-ahb-rtc", "r-ahb", + 0x20c, BIT(0), 0); + +static struct ccu_common *sun50i_a100_r_ccu_clks[] = { + &r_cpus_clk.common, + &r_apb1_clk.common, + &r_apb2_clk.common, + &r_apb1_timer_clk.common, + &r_apb1_twd_clk.common, + &r_apb1_pwm_clk.common, + &r_apb1_bus_pwm_clk.common, + &r_apb1_ppu_clk.common, + &r_apb2_uart_clk.common, + &r_apb2_i2c0_clk.common, + &r_apb2_i2c1_clk.common, + &r_apb1_ir_rx_clk.common, + &r_apb1_bus_ir_rx_clk.common, + &r_ahb_bus_rtc_clk.common, +}; + +static struct clk_hw_onecell_data sun50i_a100_r_hw_clks = { + .hws = { + [CLK_R_CPUS] = &r_cpus_clk.common.hw, + [CLK_R_AHB] = &r_ahb_clk.hw, + [CLK_R_APB1] = &r_apb1_clk.common.hw, + [CLK_R_APB2] = &r_apb2_clk.common.hw, + [CLK_R_APB1_TIMER] = &r_apb1_timer_clk.common.hw, + [CLK_R_APB1_TWD] = &r_apb1_twd_clk.common.hw, + [CLK_R_APB1_PWM] = &r_apb1_pwm_clk.common.hw, + [CLK_R_APB1_BUS_PWM] = &r_apb1_bus_pwm_clk.common.hw, + [CLK_R_APB1_PPU] = &r_apb1_ppu_clk.common.hw, + [CLK_R_APB2_UART] = &r_apb2_uart_clk.common.hw, + [CLK_R_APB2_I2C0] = &r_apb2_i2c0_clk.common.hw, + [CLK_R_APB2_I2C1] = &r_apb2_i2c1_clk.common.hw, + [CLK_R_APB1_IR] = &r_apb1_ir_rx_clk.common.hw, + [CLK_R_APB1_BUS_IR] = &r_apb1_bus_ir_rx_clk.common.hw, + [CLK_R_AHB_BUS_RTC] = &r_ahb_bus_rtc_clk.common.hw, + }, + .num = CLK_NUMBER, +}; + +static struct ccu_reset_map sun50i_a100_r_ccu_resets[] = { + [RST_R_APB1_TIMER] = { 0x11c, BIT(16) }, + [RST_R_APB1_BUS_PWM] = { 0x13c, BIT(16) }, + [RST_R_APB1_PPU] = { 0x17c, BIT(16) }, + [RST_R_APB2_UART] = { 0x18c, BIT(16) }, + [RST_R_APB2_I2C0] = { 0x19c, BIT(16) }, + [RST_R_APB2_I2C1] = { 0x19c, BIT(17) }, + [RST_R_APB1_BUS_IR] = { 0x1cc, BIT(16) }, + [RST_R_AHB_BUS_RTC] = { 0x20c, BIT(16) }, +}; + +static const struct sunxi_ccu_desc sun50i_a100_r_ccu_desc = { + .ccu_clks = sun50i_a100_r_ccu_clks, + .num_ccu_clks = ARRAY_SIZE(sun50i_a100_r_ccu_clks), + + .hw_clks = &sun50i_a100_r_hw_clks, + + .resets = sun50i_a100_r_ccu_resets, + .num_resets = ARRAY_SIZE(sun50i_a100_r_ccu_resets), +}; + +static int sun50i_a100_r_ccu_probe(struct platform_device *pdev) +{ + void __iomem *reg; + + reg = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(reg)) + return PTR_ERR(reg); + + return sunxi_ccu_probe(pdev->dev.of_node, reg, &sun50i_a100_r_ccu_desc); +} + +static const struct of_device_id sun50i_a100_r_ccu_ids[] = { + { .compatible = "allwinner,sun50i-a100-r-ccu" }, + { } +}; + +static struct platform_driver sun50i_a100_r_ccu_driver = { + .probe = sun50i_a100_r_ccu_probe, + .driver = { + .name = "sun50i-a100-r-ccu", + .of_match_table = sun50i_a100_r_ccu_ids, + }, +}; +module_platform_driver(sun50i_a100_r_ccu_driver); |